中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (8): 1418-1421.doi: 10.3969/j.issn.1673-8225.2010.08.021

• 材料力学及表面改性 material mechanics and surface modification • 上一篇    下一篇

表面改性对光学眼镜膜增透防雾效果的影响

李  坚，刘佳一，张阳德   

  1. 中南大学湘雅医院肝胆肠外科研究中心，湖南省长沙市  410008
  • 出版日期:2010-02-19 发布日期:2010-02-19
  • 通讯作者: 张阳德，博士，教授，中南大学湘雅医院肝胆肠外科研究中心，湖南省长沙市 410008
  • 作者简介:李 坚☆，男，1969年生，湖南省湘乡市人，汉族，2005年中南大学湘雅医学院毕业，博士，副教授，主要从事肝胆外科疾病治疗、生物材料研究。 liujiayi_2001_0@sohu.com
  • 基金资助:

    国家高技术研究发展计划(863计划)，课题编号：2007AA021907。课题名称：新型纳米防雾光材料的研发。

Effect of surface modification on anti-fogging and anti-reflection of optical glasses

Li Jian, Liu Jia-yi, Zhang Yang-de   

  1. Hepatobiliary & Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
  • Online:2010-02-19 Published:2010-02-19
  • Contact: Zhang Yang-de, Doctor, Professor, Hepatobiliary & Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
  • About author:Li Jian☆, Doctor, Associate professor, Hepatobiliary & Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China liujiayi_2001_0@sohu.com
  • Supported by:

    the National High Technology Research and Development Program of China (863 Program), No. 2007AA021907*

PDF

357

被引次数

1

摘要：

背景：利用防雾材料本身的电极性，采用逐层涂膜法对光学镜片进行表面改性，以提高膜层透光和防雾性能是当前国内外研究的新热点。
目的：通过表面改性的方法研制透光和防雾效果良好的光学防雾膜。
方法：将聚丙烯酸、阳离子聚丙烯酰胺和硅酸钠通过逐层涂膜法构建丙烯酸/聚丙烯酰胺-硅酸钠亲水防雾膜，烘干后得到稳定的纳米膜层结构，并进行透光率、亲水性和硬度的测量。
结果与结论：实验制得的防雾膜层在200 nm波长附近，其透光率高于92.9%，在波长为700~800 nm区域内，透光率达到98.1%，提示该膜层具有良好的透光性；水滴在接触膜层表面230 ms后完全分散，显示为高亲水性。制得的涂膜烘干后形成稳定的膜层结构，“铅笔法”测得硬度达到4H。因此，采用逐层涂膜法制备防雾膜方法简单，防雾性及稳定性好，提高了光学镜片的整体质量。

关键词: 表面改性, 防雾膜, 亲水性, 透光率, 聚丙烯酸, 生物膜材料

Abstract:

BACKGROUND: The polarity and the layer-by-layer coating method which are utilized to improve the membrane surface of optical glasses is a new focus for researching in the world.
OBJECTIVE: To prepare a stable hydrophilic anti-fogging coating by surface modification.
METHODS: Hydrophilic anti-fogging coatings of complexes of polyacrylic acid (PAA), cationic polyacrylamide (CPAM) and sodium silicate were fabricated by layer-by-layer coating method. Subsequently, the stable multilayer films were obtained by thermal torrefaction. Then the transmittance, hydrophilicity, and hardness were tested.
RESULTS AND CONCLUSION: In the wavelength coverage of 200 nm, the transmittance of the anti-fogging coatings was above 92.9%. In the wavelength coverage of 700-800 nm, the transmittance reached 98.1%, suggesting that the membrane had the good transmittance. Water drop dispersed completely after 230 ms when it contacted with the surface of the multilayer films, suggesting that it had the good hydrophilicity. The hardness of stable films structure was 4 H. The layer-by-layer coating method was simple and favorable for preparing the anti-fogging coatings with good product properties including good stability, anti-fogging function and the improved transmittance.