以十三氟辛基三甲氧基硅烷(FAS-13)改性处理甲基三甲氧基硅烷(MTMS)与正硅酸四乙酯(TEOS)制备的二氧化硅溶胶凝胶,得到具有超疏水效果的氟化硅溶胶凝胶。将异丙基三(二辛基焦磷酸酰氧基)钛酸酯(NDZ-201)接枝到干燥处理的氟硅烷粉末上,并作为填料加入环氧树脂(EP),制得一款防腐性强、机械性能优异的超疏水涂料。结果表明,当MTMS与FAS-13体积比为1∶2时,制得的氟化硅溶胶具有一定的"桑葚"结构,粒径在40 nm左右且分散性良好;NDZ-201添加质量为氟硅烷粉末质量的2%且钛氟硅烷粉末质量分数为60%时,涂层机械性能优异且满足超疏水的要求。

Silica sol gel is prepared through modifying methyl trimethoxysilane (MTMS) and tetraethyl orthosilicate (TEOS) by tridecafluorooctyl trimethoxysilane (FAS-13),a fluorinated silica sol gel with superhydrophobic effect is therefore obtained.A kind of superhydrophobic coatings with strong corrosion resistance and excellent mechanical properties is prepared through grafting isopropyl tris(dioctyl pyrophosphate oxy)titanate (NDZ-201) onto the dried fluorosilane powder,and then being added into epoxy resin (EP) as a filler.It is shown that the prepared fluorinated silica sol has a certain "mulberry" structure,with a particle size of about 40 nm and a good dispersion when the volume ratio of MTMS to FAS-13 is 1∶2.The coating exhibits excellent mechanical properties and meets the requirements of super hydrophobic when the adding mass of NDZ-201 is 2% of the mass of fluorosilane powder and the mass fraction of titanium fluorosilane powder is 60%.

程秋月(2000-),女,硕士研究生,主要研究方向为海洋防污涂料,3110978325@qq.com;。