双亲性有机-无机杂化改性有机硅防污材料的制备及性能  

Preparation and properties of amphiphilic organic-inorganic hybrid modified silicone antifouling materials

作　　者：李倩 孙发森 王庆富 LI Qian;SUN Fasen;WANG Qingfu(School of Polymer Science and Engineer,Qingdao University of Science and Technology,Qingdao 266042,China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042 [2]中国科学院海洋研究所中国科学院海洋环境腐蚀与生物污损重点实验室,山东青岛266071

出　　处：《化工科技》2024年第5期24-31,共8页Science & Technology in Chemical Industry

基　　金：中国国家国际科技合作援助专项项目(KY202001016);山东省自然科学基金重大基础研究项目(ZR2022ZD11);青岛新能源山东省实验室开放课题项目(QNESL OP202312)。

摘　　要：聚二甲基硅氧烷(PDMS)材料机械强度和耐水性差,并且其防污性能依赖于海水冲刷,静态防污效果比较差。通过将聚乙二醇甲醚甲基丙烯酸酯、甲基丙烯酸十二氟庚酯和3-巯丙基三乙氧基硅烷预聚制备了双亲性预聚物;以硅酸四乙酯为原料通过溶胶-凝胶法制备了γ-甲基丙烯酰氧基丙基三甲氧基硅烷疏水改性SiO_(2),与PDMS混合、固化形成有机-无机交联网络,既促进了双亲性预聚物在涂层表面的自富集效果,降低了细菌、硅藻等海洋生物及大型污损生物的黏附能力,又提高了材料的静态防污能力、耐水性以及对基体材料的附着强度。Polydimethysiloxane(PDMS)material has poor mechanical strength and water resistance,and its anti-fouling performance depends on seawater erosion,and its static anti-fouling effect is relatively poor.In this paper,amphiphilic prepolymers were prepared by prepolymerization of polyethylene glycol methyl orth osilicate methacrylate,dodecafluoroheptyl methacrylate and 3-mercaptopropyltriethoxysilane.In addition,γ-methacryloxypropyl-trimethoxysilane hydrophobically modified SiO_(2) was prepared by sol-gel method using tetraethyl orthosilicate as raw material.Then,it was mixed with PDMS and solidified to form an organic-inorganic cross-linked network,which not only promoted the self-enrichment effect of amphiphilic prepolymer on the coating surface,reduced the adhesion ability of marine organisms such as bacteria and diatoms and large fouling organisms,but also improved the static antifouling ability,water resistance and adhesion strength of the material to the substrate material.

关 键 词：聚二甲基硅氧烷 双亲性预聚物 SiO_(2) 有机-无机杂化改性 海洋防污能力 

分 类 号：TB304[一般工业技术—材料科学与工程]