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为了研究表面微结构与自抛光的协同防污效果,将具有吸水溶胀能力的微球加入到自抛光树脂中,通过交联反应制备了表面微结构自抛光防污涂层,考察了涂层浸水过程中表面微结构形貌、溶胀、自抛光性能和抑制小球藻附着性能。研究结果表明:涂层自抛光过程中,微结构形貌的变化随微球含量的增加而更加明显;涂层溶胀率与微球的含量正相关,自抛光率与可水解单体含量正相关,但可水解单体含量过大时,涂层溶胀与自抛光成相互制约关系;小球藻附着率随微球含量的增加而增大,随可水解单体含量的增加而下降,当微球分散液质量分数为 10%、可水解单体质量分数为 40%时,涂层抑制小球藻附着的效果最佳。 相似文献
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Polymer brush coatings for combating marine biofouling 总被引:4,自引:0,他引:4
Wen Jing Yang Koon-Gee Neoh En-Tang Kang Serena Lay-Ming Teo Daniel Rittschof 《Progress in Polymer Science》2014
A variety of functional polymer brushes and coatings have been developed for combating marine biofouling and biocorrosion with much less environmental impact than traditional biocides. This review summarizes recent developments in marine antifouling polymer brushes and coatings that are tethered to material surfaces and do not actively release biocides. Polymer brush coatings have been designed to inhibit molecular fouling, microfouling and macrofouling through incorporation or inclusion of multiple functionalities. Hydrophilic polymers, such as poly(ethylene glycol), hydrogels, zwitterionic polymers and polysaccharides, resist attachment of marine organisms effectively due to extensive hydration. Fouling release polymer coatings, based on fluoropolymers and poly(dimethylsiloxane) elastomers, minimize adhesion between marine organisms and material surfaces, leading to easy removal of biofoulants. Polycationic coatings are effective in reducing marine biofouling partly because of their good bactericidal properties. Recent advances in controlled radical polymerization and click chemistry have also allowed better molecular design and engineering of multifunctional brush coatings for improved antifouling efficacies. 相似文献
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随着人们环保意识的增强和环保法规的日益严格,不含重金属防污剂的环境友好防污涂料成为目前研究的热点。文中通过室内的接触角、水解失重和吸水率跟踪测试,研究了3种主链降解型聚丙烯酸锌树脂的表面润湿性能和自抛光性能;并将其与天然产物防污剂(Butenolide)复配制备了天然产物基无铜自抛光防污涂料,通过防污剂释放率测试和浅海浸泡试验对防污剂的释放行为和实海防污能力进行了研究。结果表明:主链降解型聚丙烯酸锌树脂H100Z具有优异的自抛光性能(质量损失可达8.4 mg·cm−2)和较低的溶胀程度(吸水率仅为12.3%),可作为Butenolide的载体,实现对其可控、稳定和持续的释放,该防污涂料在南海海域(深圳)和东海海域(厦门)浸泡3个月后均展现出优异的防污效果。 相似文献
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New acrylate grafting epoxy antifouling resins containing benzoisothiazoline ketone (BIT) group were successfully synthesized, and their structures and performances were determined. Experimental data indicated that the new acrylate grafting epoxy antifouling resins have a strong bonding to the cured epoxy resin coating through chemical reaction and self-stratifying. And the paint prepared by using the new resin as matrix has excellent self-polishing and antifouling properties. Especially its antifouling period could be modified by changing the weight ratio of the usage of the mixed monomers and epoxy resin in the preparing process of the acrylate grafting epoxy antifouling resins. 相似文献
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新型环保海洋防污材料研究进展 总被引:3,自引:3,他引:0
简要论述了海洋防污材料的发展历史及其防污机理,评述了新型环保高性能海洋防污材料的最新研究进展。自有机锡自抛光防污涂料被禁用后,基于聚丙烯酸锌、聚丙烯酸铜和聚丙烯酸硅烷酯的无锡自抛光防污涂料得到了广泛应用。为进一步提升其防污性能和环保性能,接枝防污官能团防污材料、生物降解高分子基防污材料、主链降解型自抛光防污材料、减阻型防污材料以及仿生防污材料成为当今的研究热点。介绍了席夫碱、草甘膦、苯并异噻唑啉酮等几种防污官能团的接枝方法及其防污效果,指出这类方法可提高防污剂的利用率,使防污剂释放更平稳,但实用化还需解决防污剂接枝改性后防污能力下降以及合成工艺复杂等问题。重点介绍了生物降解高分子基防污材料,特别是主链降解-侧链水解型防污材料的结构和合成方法。由于该类可降解/水解树脂具有良好的力学性能和水解可调控性,所制备的防污涂料即使在静态下,防污剂也释放平稳,因此可用于开发新型主链降解型自抛光防污涂料,以提高涂层的静态防污长效性,具有良好的应用前景。还介绍了通过对高分子树脂改性等方法降低涂层水解后的表面粗糙度,该类防污涂层具有良好的减阻性能。最后介绍了仿生防污材料的研究进展。 相似文献
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环保无铜自抛光防污涂料的制备与性能研究 总被引:1,自引:1,他引:0
目的得到一种可以媲美传统含铜防污涂料防污效果的涂料配方,且具有对海洋环境友好的特点。方法首先筛选符合无铜涂料技术需求的环保型防污剂,并进行涂料配方研究,得到最优环保无铜防污涂料配方。结果设计开发的2组不同防污剂复配无铜自抛光防污涂料,其实际防污效果可以达到中期效防污涂料的评价标准,在实际防污效果上可以媲美3年期效以Cu2O为主防污剂的传统含铜自抛光防污涂料。2组防污剂复配配方为Econea/Dcoit及Econea/Zn PT,采用上述2种防污剂进行质量比1:1的防污剂复配,具有1+12的实际防污效果,并且在具有较好实际防污效果的同时,具备可以在海水中实现快速降解的优异环境友好性。在无铜涂料配方体系下,中期效防污涂料(3年)中丙烯酸锌树脂的最佳配方含量为40%~50%(湿重)。结论环保无铜防污涂料的各项性能良好,具有广谱、高效的防污效果。 相似文献
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简要介绍了色浆分类,从市场规模和应用行业阐述了商品色浆的发展历程及现状,并从应用领域、环保政策等方面分析了未来几年商品色浆高速发展的原因。 相似文献
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