En contr\u00f4lant la teneur en agent de durcissement et en agent de couplage silane dans la formule de rev\u00eatement en silicone, leurs effets sur le module \u00e9lastique, la duret\u00e9, l'hydrophobicit\u00e9, l'absorption d'eau et la r\u00e9sistance \u00e0 l'immersion dans l'eau du mat\u00e9riau de rev\u00eatement ont \u00e9t\u00e9 \u00e9tudi\u00e9s. Les r\u00e9sultats montrent que lorsque la teneur en agent de durcissement est sup\u00e9rieure \u00e0 4%, \u00e0 mesure que la teneur en agent de durcissement augmente, le module d'\u00e9lasticit\u00e9 du rev\u00eatement diminue, la duret\u00e9 Shore augmente et le taux d'absorption d'eau augmente\u00a0; \u00e0 mesure que la teneur en agent de couplage silane augmente, le rev\u00eatement en silicone augmente le module d'\u00e9lasticit\u00e9 et l'absorption d'eau, tandis que la duret\u00e9 Shore et l'angle de contact avec l'eau diminuent. Lorsque l'agent de durcissement est ajout\u00e9 6%, le module \u00e9lastique du rev\u00eatement est le plus sensible \u00e0 l'immersion dans l'eau de mer. La stabilit\u00e9 du rev\u00eatement de silicone contenant l'agent de durcissement 5% et l'agent de couplage silane 8% dans l'eau de mer est consid\u00e9rablement r\u00e9duite. L'ajout de trop d'agent de durcissement augmentera le degr\u00e9 de r\u00e9ticulation des cha\u00eenes de silicone, rendant la structure du r\u00e9seau plus dense, augmentant la duret\u00e9 du rev\u00eatement, ce qui n'est pas propice aux performances antisalissure du rev\u00eatement\u00a0; l'ajout de trop d'agent de couplage silane entra\u00eenera une augmentation des groupes hydrophiles sur la surface du rev\u00eatement, une diminution de l'angle de contact avec l'eau et une augmentation de l'adh\u00e9sion des bact\u00e9ries marines.<\/p>","protected":false},"excerpt":{"rendered":"
By controlling the content of curing agent and silane coupling agent in the silicone coating formula, their effects on the elastic modulus, hardness, hydrophobicity, water absorption and resistance to water medium immersion of the coating material were studied. The results show that when the curing agent content is greater than 4%, as the curing agent […]<\/p>\n","protected":false},"author":1,"featured_media":2419,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1731","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/posts\/1731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/comments?post=1731"}],"version-history":[{"count":1,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/posts\/1731\/revisions"}],"predecessor-version":[{"id":3693,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/posts\/1731\/revisions\/3693"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/media\/2419"}],"wp:attachment":[{"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/media?parent=1731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/categories?post=1731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chicchem.com\/fr\/wp-json\/wp\/v2\/tags?post=1731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}