{"id":7617,"date":"2020-02-13T19:09:51","date_gmt":"2020-02-13T18:09:51","guid":{"rendered":"https:\/\/arcotest.info\/?page_id=7617"},"modified":"2025-01-18T13:01:58","modified_gmt":"2025-01-18T12:01:58","slug":"determinacao-da-tensao-superficial","status":"publish","type":"page","link":"https:\/\/arcotest.info\/pt-pt\/determinacao-da-tensao-superficial\/","title":{"rendered":"Determina\u00e7\u00e3o da tens\u00e3o superficial"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-5d3e52e\" data-block-id=\"5d3e52e\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-5d3e52e-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1b9357e\" data-v=\"4\" data-block-id=\"1b9357e\"><style>.stk-1b9357e {margin-top:20px !important;margin-left:30px !important;}@media screen and (max-width:689px){.stk-1b9357e {margin-left:10px !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1b9357e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1b9357e-inner-blocks\"><style>@media only screen and (max-width: 600px) {.gb-69e5fe235888c{font-size: 30px!important;}}<\/style>\n<h2 class=\"gb-69e5fe235888c wp-block-heading\" id=\"h-bestimmung-der-oberflachenspannung\">Determina\u00e7\u00e3o da tens\u00e3o superficial<\/h2>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-75f564c\" data-block-id=\"75f564c\"><style>.stk-75f564c-column{--stk-columns-spacing:37px !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-75f564c-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-43d9889\" data-v=\"4\" data-block-id=\"43d9889\"><style>.stk-43d9889 {align-self:center !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-43d9889-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-43d9889-inner-blocks\">\n<p>Com as tintas de teste, a tens\u00e3o superficial pode ser determinada por s\u00f3lidos de pl\u00e1stico, metal, vidro, cer\u00e2mica e outros. Em particular, a possibilidade de ades\u00e3o das superf\u00edcies para impress\u00e3o, colagem, pintura, etc., deve ser determinada com base no padr\u00e3o de humidifica\u00e7\u00e3o.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">A determina\u00e7\u00e3o da tens\u00e3o superficial ocorre ao aplicar as tintas de teste sobre as superf\u00edcies a serem testadas; como um tra\u00e7o de poucos cent\u00edmetros de comprimento e ao observar o comportamento do tra\u00e7o da tinta.<\/h5>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-43a084d\" data-v=\"4\" data-block-id=\"43a084d\"><style>.stk-43a084d {align-self:flex-end !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-43a084d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-43a084d-inner-blocks\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"953\" src=\"https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line.webp\" alt=\"\" class=\"wp-image-86813\" style=\"width:343px;height:363px\" srcset=\"https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line.webp 900w, https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line-283x300.webp 283w, https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line-142x150.webp 142w, https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line-768x813.webp 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-64a0c48\" data-block-id=\"64a0c48\"><style>.stk-64a0c48 {margin-bottom:111px !important;}.stk-64a0c48-column{--stk-columns-spacing:0px !important;--stk-column-gap:24px !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-64a0c48-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-5dd98a9\" data-v=\"4\" data-block-id=\"5dd98a9\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-5dd98a9-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-5dd98a9-inner-blocks\">\n<p class=\"has-palette-color-6-background-color has-background\">Se o tra\u00e7o contrair no intervalo de 2 ou 4 segundos, dependendo da especifica\u00e7\u00e3o da tinta, a tens\u00e3o superficial da \u00e1rea de teste ser\u00e1 menor do que a da tinta de teste. Por outro lado, a diverg\u00eancia da marca do tra\u00e7o mostraria que a tens\u00e3o superficial da tinta aplicada \u00e9 menor do que a da superf\u00edcie.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f28010a\" data-v=\"4\" data-block-id=\"f28010a\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f28010a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f28010a-inner-blocks\">\n<p class=\"has-palette-color-6-background-color has-background\">Por outro lado, a diverg\u00eancia da marca do tra\u00e7o mostraria que a tens\u00e3o superficial da tinta aplicada \u00e9 menor do que a da superf\u00edcie.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-2b7ccf7\" data-v=\"4\" data-block-id=\"2b7ccf7\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-2b7ccf7-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-2b7ccf7-inner-blocks\">\n<p class=\"has-palette-color-6-background-color has-background\">Se o tra\u00e7o permanecer inalterado dentro do per\u00edodo de observa\u00e7\u00e3o, o valor da tens\u00e3o superficial foi atingido de forma precisa ou ficou ligeiramente mais alto.<\/p>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-1e29d1b\" data-block-id=\"1e29d1b\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-1e29d1b-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-4a5598a\" data-v=\"4\" data-block-id=\"4a5598a\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4a5598a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4a5598a-inner-blocks\">\n<h3 class=\"wp-block-heading\">Superf\u00edcie pl\u00e1stica de teste com PINK 38 Jumbo<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d1dfda3\" data-v=\"4\" data-block-id=\"d1dfda3\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d1dfda3-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d1dfda3-inner-blocks\">\n<p>Neste exemplo de aplica\u00e7\u00e3o, a tens\u00e3o superficial no pl\u00e1stico PE preto \u00e9 testada com a caneta de teste <strong>PINK 38 Jumbo<\/strong>.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-422046b\" data-v=\"4\" data-block-id=\"422046b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-422046b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-422046b-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9SbFR5ZEpvaGdpWSIgZnJhbWVib3JkZXI9IjAiIGFsbG93PSJhY2NlbGVyb21ldGVyOyBhdXRvcGxheTsgY2xpcGJvYXJkLXdyaXRlOyBlbmNyeXB0ZWQtbWVkaWE7IHBpY3R1cmUtaW4tcGljdHVyZSIgYWxsb3dmdWxsc2NyZWVuPSIiPjwvaWZyYW1lPg==\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-rmasz8l\" data-block-id=\"rmasz8l\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-rmasz8l-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-n9qg5dv\" data-v=\"4\" data-block-id=\"n9qg5dv\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-n9qg5dv-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-n9qg5dv-inner-blocks\">\n<h3 class=\"wp-block-heading\">Testando a superf\u00edcie met\u00e1lica com PINK 10 ml<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f931ty1\" data-v=\"4\" data-block-id=\"f931ty1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f931ty1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f931ty1-inner-blocks\">\n<p>No seguinte exemplo de aplica\u00e7\u00e3o, o teste \u00e9 feito com a tinta de teste PINK a partir de garrafas de 10 ml com cotonetes. Para cada utiliza\u00e7\u00e3o pegue num novo cotonete.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-fvn4ii0\" data-v=\"4\" data-block-id=\"fvn4ii0\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-fvn4ii0-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-fvn4ii0-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9PNjhZSjFxNExJMCIgZnJhbWVib3JkZXI9IjAiIGFsbG93PSJhY2NlbGVyb21ldGVyOyBhdXRvcGxheTsgY2xpcGJvYXJkLXdyaXRlOyBlbmNyeXB0ZWQtbWVkaWE7IGd5cm9zY29wZTsgcGljdHVyZS1pbi1waWN0dXJlIiBhbGxvd2Z1bGxzY3JlZW49IiI+PC9pZnJhbWU+\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-io4txrw\" data-block-id=\"io4txrw\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-io4txrw-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-i10xs8l\" data-v=\"4\" data-block-id=\"i10xs8l\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-i10xs8l-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-i10xs8l-inner-blocks\">\n<h3 class=\"wp-block-heading\">Teste o metal para limpeza<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-36981sd\" data-v=\"4\" data-block-id=\"36981sd\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-36981sd-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-36981sd-inner-blocks\">\n<p>No seguinte exemplo de aplica\u00e7\u00e3o, o teste \u00e9 feito com a tinta de teste PINK a partir de garrafas de 10 ml com cotonetes. Para cada utiliza\u00e7\u00e3o pegue num novo cotonete.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-omwhvbl\" data-v=\"4\" data-block-id=\"omwhvbl\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-omwhvbl-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-omwhvbl-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9TNE1JYzhRaUY5SSIgdGl0bGU9IllvdVR1YmUgdmlkZW8gcGxheWVyIiBmcmFtZWJvcmRlcj0iMCIgYWxsb3c9ImFjY2VsZXJvbWV0ZXI7IGF1dG9wbGF5OyBjbGlwYm9hcmQtd3JpdGU7IGVuY3J5cHRlZC1tZWRpYTsgZ3lyb3Njb3BlOyBwaWN0dXJlLWluLXBpY3R1cmUiIGFsbG93ZnVsbHNjcmVlbj0iIj48L2lmcmFtZT4=\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-8573796\" data-block-id=\"8573796\"><style>.stk-8573796 {margin-bottom:50px !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-8573796-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-211df4f\" data-v=\"4\" data-block-id=\"211df4f\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-211df4f-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-211df4f-inner-blocks\">\n<h3 class=\"wp-block-heading\">Testando um filme de poliolefina a 38 mN\/m<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-3c685b1\" data-v=\"4\" data-block-id=\"3c685b1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-3c685b1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3c685b1-inner-blocks\">\n<p>O RAPIDTEST 38\u00ae pode ser usado para determinar se o pr\u00e9-tratamento de poliolefinas (polipropileno, polietileno, polibutileno) demonstrou um efeito. O l\u00edquido contido na caneta permanece, com um valor da tens\u00e3o superficial, de aprox. 38mN\/m ou superior, como um tra\u00e7o continuo, abaixo desse valor o l\u00edquido escorre em forma de got\u00edcula. O tra\u00e7o feito com o QUICKTEST 38\u00ae seca em segundos, n\u00e3o \u00e9 mais poss\u00edvel apag\u00e1-lo.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f460536\" data-v=\"4\" data-block-id=\"f460536\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f460536-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f460536-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9qd3RQNjRlNXIwYyIgdGl0bGU9IllvdVR1YmUgdmlkZW8gcGxheWVyIiBmcmFtZWJvcmRlcj0iMCIgYWxsb3c9ImFjY2VsZXJvbWV0ZXI7IGF1dG9wbGF5OyBjbGlwYm9hcmQtd3JpdGU7IGVuY3J5cHRlZC1tZWRpYTsgZ3lyb3Njb3BlOyBwaWN0dXJlLWluLXBpY3R1cmUiIGFsbG93ZnVsbHNjcmVlbj0iIj48L2lmcmFtZT4=\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<style>@media only screen and (max-width: 600px) {.gb-69e5fe236bf6a{font-size: 30px!important;}}<\/style>\n<h2 class=\"gb-69e5fe236bf6a wp-block-heading\" id=\"h-sauberkeit-von-werkstoffen\">Limpeza de materiais<\/h2>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<h5 class=\"wp-block-heading\" id=\"h-die-begriffe-sauberkeit-und-reinheit-von-werkstoffen-bedurfen-einer-naheren-definition-da-die-werkstoffe-ob-als-formteile-oder-folien-in-ihrer-oberflache-vorliegen-kann-hier-der-begriff-sauberkeit-angebracht-sein-da-reinheit-von-werkstoffen-sich-auf-den-aufbau-also-auch-das-innere-gefuge-eines-gesamtkorpers-beziehen-kann\">Os termos limpeza e pureza de materiais requerem uma defini\u00e7\u00e3o mais detalhada. Uma vez que os materiais, tanto na forma de pe\u00e7as moldadas como de pel\u00edculas, est\u00e3o presentes na sua superf\u00edcie, o termo limpeza \u00e9 adequado, uma vez que a pureza dos materiais pode referir-se \u00e0 constru\u00e7\u00e3o, isto \u00e9, tamb\u00e9m \u00e0 estrutura interna, de um corpo inteiro. <\/h5>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-43dbd94 is-style-default\" data-block-id=\"43dbd94\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-fe2a36e stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"fe2a36e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-fe2a36e-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-fe2a36e-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-a812bd7 stk-block-background\" data-block-id=\"a812bd7\"><style>.stk-a812bd7 {background-color:#d7dadd !important;}.stk-a812bd7:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-2a90297\" id=\"verschmutzungen-von-werkstoffen\" data-block-id=\"2a90297\"><style>@media screen and (max-width:689px){.stk-2a90297 .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">contamina\u00e7\u00e3o de materiais<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-6de89ff\" data-block-id=\"6de89ff\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-6de89ff\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-6-de-89-ff-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-6-de-89-ff-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-7482be1 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"7482be1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-7482be1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-7482be1-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>A contamina\u00e7\u00e3o de materiais pode ter v\u00e1rias causas e assumir muitas formas diferentes. Deve ser considerada, primeiramente, a contamina\u00e7\u00e3o de part\u00edculas, bem como a contamina\u00e7\u00e3o de pel\u00edculas. A primeira est\u00e1 presente como pontos individuais e \u00e9 disposta de forma irregular e em intervalos. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>A contamina\u00e7\u00e3o de pel\u00edcula, por outro lado, cobre as superf\u00edcies de forma total ou parcial e tamb\u00e9m pode, se for limpa, ser descrita como pura, estando sujeita a uma defini\u00e7\u00e3o correspondente, por exemplo, tens\u00e3o superficial\/energia superficial.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>No entanto, n\u00e3o pode referir-se \u00e0 estrutura interna da pe\u00e7a, que s\u00f3 pode ser descrita pela pureza, na melhor das hip\u00f3teses. Uma vez que s\u00e3o as superf\u00edcies que est\u00e3o sujeitas a processamento posterior, os estados de limpeza devem tamb\u00e9m ser definidos, o que \u00e9 poss\u00edvel em termos gerais com o termo &#8220;tens\u00e3o superficial&#8221;.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-ac0db32 is-style-default\" data-block-id=\"ac0db32\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e70179d stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"e70179d\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e70179d-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-e70179d-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-721468e stk-block-background\" data-block-id=\"721468e\"><style>.stk-721468e {background-color:#d7dadd !important;}.stk-721468e:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-905a7de\" id=\"zweierlei-prufungsverfahren-erganzen-sich\" data-block-id=\"905a7de\"><style>@media screen and (max-width:689px){.stk-905a7de .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Dois tipos de procedimentos de ensaio complementam-se um ao outro<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-c4397b7\" data-block-id=\"c4397b7\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-c4397b7\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-c-4397-b-7-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-c-4397-b-7-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-56eecd1 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"56eecd1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-56eecd1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-56eecd1-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>O processamento diz respeito, por exemplo, \u00e0 impress\u00e3o, pintura e colagem. Como solu\u00e7\u00e3o simples, os m\u00e9todos para tal s\u00e3o ensaios de superf\u00edcie com tintas de teste e medi\u00e7\u00e3o do \u00e2ngulo de contacto. O primeiro \u00e9 f\u00e1cil de manusear e, como tal, orientado para a pr\u00e1tica, uma vez que a tinta pode ser aplicada nas superf\u00edcies de ensaio sem qualquer problema durante os processos de produ\u00e7\u00e3o. O \u00faltimo requer muito equipamento. Pode exibir os componentes de tens\u00e3o superficial separadamente de forma polarizada e dispersa.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>O ensaio de tinta de teste mostra apenas a soma dos dois valores, que normalmente \u00e9 suficiente para uma avalia\u00e7\u00e3o das superf\u00edcies. Ambos os m\u00e9todos n\u00e3o podem ser aplicados sem contacto ou continuamente. O \u00faltimo significa que nos processos de fabrico, como \u00e9 o caso das pel\u00edculas em particular, as medi\u00e7\u00f5es s\u00f3 podem ser efetuadas no estado de repouso, ou seja, n\u00e3o em cintas em funcionamento.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Em casos excecionais, uma medi\u00e7\u00e3o s\u00f3 poderia ser feita a uma velocidade muito baixa. Os termos &#8220;limpeza&#8221; e &#8220;pureza&#8221; podem ser utilizados opcionalmente, sendo a &#8220;limpeza&#8221; sempre aplic\u00e1vel apenas a superf\u00edcies. No entanto, \u00e9 recomend\u00e1vel n\u00e3o os utilizar misturados, uma vez que tal pode provocar irrita\u00e7\u00f5es.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-3d0ad49 is-style-default\" data-block-id=\"3d0ad49\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9a8e4e2 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"9a8e4e2\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9a8e4e2-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-9a8e4e2-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-fa6365b stk-block-background\" data-block-id=\"fa6365b\"><style>.stk-fa6365b {background-color:#d7dadd !important;}.stk-fa6365b:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-c6dd6be\" id=\"vorbehandlung-mit-erhohter-oberflachenspannung\" data-block-id=\"c6dd6be\"><style>@media screen and (max-width:689px){.stk-c6dd6be .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Pr\u00e9-tratamento com aumento da tens\u00e3o superficial<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-58e0d69\" data-block-id=\"58e0d69\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-58e0d69\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-58-e-0-d-69-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-58-e-0-d-69-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-635498e stk-block-accordion__content\" data-v=\"4\" data-block-id=\"635498e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-635498e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-635498e-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>O termo pr\u00e9-tratamento \u00e9 tradicionalmente usado para se referir \u00e0 limpeza de superf\u00edcies com meios mec\u00e2nicos, especialmente a lavagem com ou sem solventes. O pr\u00e9-tratamento tem sido utilizado h\u00e1 v\u00e1rias d\u00e9cadas tamb\u00e9m com tratamento f\u00edsico atrav\u00e9s de descarga de corona, plasma e chama, em que as superf\u00edcies s\u00e3o modificadas por a\u00e7\u00e3o el\u00e9trica de tal forma que as suas sec\u00e7\u00f5es polares s\u00e3o significativamente aumentadas, aumentando assim a tens\u00e3o superficial e melhorando consideravelmente a ader\u00eancia.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Por exemplo, os pl\u00e1sticos feitos de poliolefinas, cujos valores naturais de tens\u00e3o superficial s\u00e3o de cerca de 30 mN\/m, podem ser levados com relativa facilidade a valores superiores a 45 mN\/m, o que proporciona valores de ader\u00eancia muito bons para impress\u00e3o, colagem e pintura. Estes valores nunca podem ser alcan\u00e7ados atrav\u00e9s dos m\u00e9todos originais de limpeza, embora se deva notar que um pr\u00e9-tratamento vi\u00e1vel com os m\u00e9todos f\u00edsicos requer normalmente uma pr\u00e9-limpeza mec\u00e2nica.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Isto aplica-se especialmente a superf\u00edcies met\u00e1licas contaminadas, por exemplo, com \u00f3leos que s\u00e3o utilizados no fabrico das pel\u00edculas ou das pe\u00e7as moldadas.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n<div style=\"height:57px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" style=\"font-size:clamp(18.959px, 1.185rem + ((1vw - 3.2px) * 0.863), 30px);\">.<\/h2>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<h5 class=\"wp-block-heading\">. <\/h5>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-0bd5d61 is-style-default\" data-block-id=\"0bd5d61\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-b8094ad stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"b8094ad\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-b8094ad-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-b8094ad-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-2a7d77b stk-block-background\" data-block-id=\"2a7d77b\"><style>.stk-2a7d77b {background-color:#d7dadd !important;}.stk-2a7d77b:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-433eea0\" id=\"effiziente-haftfestigkeitsprufung\" data-block-id=\"433eea0\"><style>@media screen and (max-width:689px){.stk-433eea0 .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">.<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-2fcb6e7\" data-block-id=\"2fcb6e7\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-2fcb6e7\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-2-fcb-6-e-7-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-2-fcb-6-e-7-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1ab7d02 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"1ab7d02\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1ab7d02-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1ab7d02-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>.      <br\/><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>.         <br\/><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>.   <\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>Determina\u00e7\u00e3o da tens\u00e3o superficial Com as tintas de teste, a tens\u00e3o superficial pode ser determinada por s\u00f3lidos de pl\u00e1stico, metal, vidro, cer\u00e2mica e outros. Em particular, a possibilidade de ades\u00e3o das superf\u00edcies para impress\u00e3o, colagem, pintura, etc., deve ser determinada com base no padr\u00e3o de humidifica\u00e7\u00e3o. A determina\u00e7\u00e3o da tens\u00e3o superficial ocorre ao aplicar as [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7617","page","type-page","status-publish","hentry"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"featured_image_src":null,"featured_image_src_square":null,"_links":{"self":[{"href":"https:\/\/arcotest.info\/pt-pt\/wp-json\/wp\/v2\/pages\/7617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arcotest.info\/pt-pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/arcotest.info\/pt-pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/arcotest.info\/pt-pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arcotest.info\/pt-pt\/wp-json\/wp\/v2\/comments?post=7617"}],"version-history":[{"count":0,"href":"https:\/\/arcotest.info\/pt-pt\/wp-json\/wp\/v2\/pages\/7617\/revisions"}],"wp:attachment":[{"href":"https:\/\/arcotest.info\/pt-pt\/wp-json\/wp\/v2\/media?parent=7617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}