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科技导报  2015 

高环境稳定性多孔氧化硅减反膜的制备及表征

DOI: 10.3981/j.issn.1000-7857.2015.09.004, PP. 31-34

Keywords: 溶胶凝胶法,多孔氧化硅,减反膜,环境稳定性,十七氟癸基三乙氧基硅烷,六甲基二硅氮烷

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Abstract:

以正硅酸乙酯为硅源,氨水为催化剂,采用溶胶凝胶法,经过提拉过程制备了多孔氧化硅光学减反膜,通过后嫁接十七氟癸基三乙氧基硅烷(FAS-17)和六甲基二硅氮烷(HMDS)提高薄膜的环境稳定性。采用紫外可见光谱仪、红外光谱仪、原子力显微镜和接触角仪等测试技术及抗污染实验分析了薄膜的性能。结果表明,改性后的薄膜光学透射率高达99.82%,表面粗糙度为3.9nm,薄膜与水接触角达125°,在10-3Pa真空环境下污染2个月后透射率仅降低0.03%,说明薄膜具有很高的环境稳定性。

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