采用溶胶-凝胶法，以正硅酸乙酯(TEOS)为无机相前驱体，甲基三乙氧基硅烷(MTES)和二苯基二甲氧基硅烷(DDS)为有机相前驱体，盐酸和水为催化剂，通过水解-缩聚反应制备了不同DDS含量的有机硅/SiO2有机-无机杂化溶胶。在100℃下经12 h烘干得到有机硅/SiO2杂化涂层。涂层性能测试表明：随DDS含量增加，硬度、附着力、耐蚀性（未加DDS耐蚀性较差）有所下降；柔韧性均为1级。低温下涂层耐热性较好。溶胶中n(TEOS):n (MTES):n(DDS)为6:9:2时涂层综合性能最佳。
With tetraethyl orthosilicate (TEOS) as inorganic precursor, methyl triethoxysilane (MTES) and diphenyl dimethoxy silane (DDS) as organic precursor, hydrochloric acid and water as catalysts, organosilicone/SiO2organic-inorganic hybrid sols with different content of DDS have been prepared through hydrolysis-polycondensation reaction. Then a hybrid coating was obtained by drying at 100℃ for 12 hours. It showed that the hardness, adhesion and corrosion-resistance performances decreased with the increasing content of DDS, the corrosion-resistance property was poor without adding any DDS. The flexibilities were the grade one. The heat-resistance of the coating was good under low temperature. The comprehensive performances of the coating were optimal when the molar ratio of TEOS:MTES:DDS was 6:9:2 in the sol.
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