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用作光学零件防潮保护膜的材料有无机材料和有机材料。在有机材料中又分两大类型:即亲水型材料和憎水型材料。目前,国内外研究应用较多的憎水型防雾材料是有机硅、有机氟和有机硅氟化合物。本文选择国内研制的专用于电缆的可熔性聚四氟乙烯,用真空蒸镀法制备了MgF_2膜层和红外宽带分色滤光片的光学保护膜,获得了满意的效果。把该材料应用于光学防潮保护膜,这在国内尚属于首次。
Moisture-proof protective film for optical components are made of inorganic materials and organic materials. In organic materials is divided into two types: that is, hydrophilic materials and hydrophobic materials. At present, the research and application of more water-repellent anti-fog materials at home and abroad are organic silicon, organic fluorine and organic silicon fluorine compounds. In this paper, the domestic research and development of a special cable for the melting of polytetrafluoroethylene, prepared by vacuum evaporation MgF_2 film and broadband infrared broadband filter color optical protection film, obtained satisfactory results. The material used in optical moisture protection film, which is still the first time in China.