{"id":1021,"date":"2024-02-04T14:02:11","date_gmt":"2024-02-04T06:02:11","guid":{"rendered":"https:\/\/www.joyforce.com\/?p=1021"},"modified":"2024-02-05T13:25:55","modified_gmt":"2024-02-05T05:25:55","slug":"how-to-dissolve-polyvinyl-alcohol-pva","status":"publish","type":"post","link":"https:\/\/www.joyforce.com\/pt\/blogs\/how-to-dissolve-polyvinyl-alcohol-pva.html","title":{"rendered":"Como dissolver o \u00e1lcool polivin\u00edlico PVA"},"content":{"rendered":"<p style=\"font-weight: 400;\">A dissolu\u00e7\u00e3o do \u00e1lcool polivin\u00edlico \u00e9 uma opera\u00e7\u00e3o muito delicada. Se a dissolu\u00e7\u00e3o n\u00e3o for boa, aparecer\u00e3o micelas ou at\u00e9 mesmo blocos duros, o que afeta diretamente a opera\u00e7\u00e3o subsequente e a qualidade do produto. Primeiro, o \u00e1lcool polivin\u00edlico \u00e9 disperso em \u00e1gua fria. A dispers\u00e3o significa que as part\u00edculas est\u00e3o espalhadas na \u00e1gua, e n\u00e3o em um grupo grande. Na produ\u00e7\u00e3o industrial, os cones de material a granel s\u00e3o geralmente colocados na porta de alimenta\u00e7\u00e3o e a velocidade de alimenta\u00e7\u00e3o \u00e9 controlada.<\/p>\n<p style=\"font-weight: 400;\">A segunda \u00e9 colocar por um per\u00edodo de tempo sob agita\u00e7\u00e3o lenta ou est\u00e1tica, para que o PVA inche em \u00e1gua fria. O tempo de dilata\u00e7\u00e3o \u00e9 determinado de acordo com o tipo espec\u00edfico de PVA. Em seguida, o PVA \u00e9 aquecido lenta e uniformemente at\u00e9 a temperatura especificada, com agita\u00e7\u00e3o lenta para dissolv\u00ea-lo. A temperatura de dissolu\u00e7\u00e3o varia de 80 graus a 90 graus, de acordo com o modelo espec\u00edfico. O princ\u00edpio da agita\u00e7\u00e3o lenta \u00e9 agitar o sistema sem bolhas de ar.<\/p>\n<p style=\"font-weight: 400;\">O PVA dissolvido \u00e9 um l\u00edquido viscoso transparente com uma leve luz azul.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-1011\" src=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/6-13.png\" alt=\"\" width=\"685\" height=\"420\" srcset=\"https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/6-13.png 685w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/6-13-300x184.png 300w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/6-13-18x12.png 18w, https:\/\/www.joyforce.com\/wp-content\/uploads\/2024\/02\/6-13-600x368.png 600w\" sizes=\"(max-width: 685px) 100vw, 685px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>A dissolu\u00e7\u00e3o do \u00e1lcool polivin\u00edlico \u00e9 uma opera\u00e7\u00e3o muito delicada. Se a dissolu\u00e7\u00e3o n\u00e3o for boa, aparecer\u00e3o micelas ou at\u00e9 mesmo blocos duros, o que afeta diretamente a opera\u00e7\u00e3o subsequente e a qualidade do produto. Primeiro, o \u00e1lcool polivin\u00edlico \u00e9 disperso em \u00e1gua fria. A dispers\u00e3o significa que as part\u00edculas est\u00e3o espalhadas na \u00e1gua, em vez de uma [...]<\/p>","protected":false},"author":1,"featured_media":1011,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-1021","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to dissolve polyvinyl alcohol PVA - JOYFORCE INDUSTRIAL<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.joyforce.com\/pt\/blogs\/how-to-dissolve-polyvinyl-alcohol-pva.html\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to dissolve polyvinyl alcohol PVA - JOYFORCE INDUSTRIAL\" \/>\n<meta property=\"og:description\" content=\"The dissolution of polyvinyl alcohol is a very delicate operation. If the dissolution is not good, micelles or even hard blocks will appear, which directly affects the subsequent operation and product quality. First, the polyvinyl alcohol is dispersed into cold water. 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