磷酸盐激光玻璃聚(CH3)2SiO/SiO2防潮膜改性研究

刘瑞军; 唐永兴; 朱健强

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磷酸盐激光玻璃聚(CH₃)₂SiO/SiO₂防潮膜改性研究

1.
中国科学院上海光学精密机械研究所高功率激光物理国家实验室, 上海 201 800

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- 被引次数: 0
出版历程
- 刊出日期: 2006-02-15

Modification of di-ethoxy-silicane moisture-resistant films for neodymium-doped phosphate glass

1.
National Laboratory on High Power Laser and Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,P.O.Box 800-211,Shanghai 201800,China

摘要

摘要: 采用溶胶-凝胶方法制备的(CH3)2Si(OC2H5)2预聚体涂膜液中，掺入碱催化的SiO2悬胶体涂膜液，采用旋涂法在掺钕磷酸盐激光玻璃棒端面涂制了改性的防潮膜。当涂膜液中(CH3)2Si(OC2H5)2和SiO2物质的量之比为1∶1时，热处理后的膜层耐摩擦性能明显改善；表面粗糙度的均方根值为1.245 nm；膜层激光破坏阈值大于15 J/cm2(1 053 nm，1 ns)；在80 ℃和95%RH的封闭环境中静置336 h，膜层的透过率、接触角基本不变。结果证明膜层具有稳定的疏水结构和很好的防潮性能，膜层强度增加，耐磨擦能力提高，膜层使用期延长。
- 防潮膜 /
- 溶胶-凝胶 /
- 有机硅 /
- 激光破坏阈值
Abstract: Using di-ethoxy-silicane as precursor, a colloidal prepolymer was developed from sol-gel process. With silica colloid as modifier, the modified moisture-resistant films were prepared on neodymium-doped phosphate glass by spin coating. When the mole ratio of di-ethoxy-silicane to silica was 1∶1, the films after cure had improved abrasion-resistance. RMS was 1.245 nm, while laser-damage threshold value more than 15 J/cm2 at the condition of 1 053 nm, 1 ns. After staying in a closed circumstance at 80 ℃ and 95%RH, the films had approximately constant transmission and contact angle. It indicates that the films have a stable hydrophobic structure, good moisture-resistance, improved abrasion-resistant feature and longer service life.
- moisture-resistance film /
- sol-gel /
- organic silicon /
- laser-damaged threshold value