中国塑料 ›› 2022, Vol. 36 ›› Issue (4): 53-59.DOI: 10.19491/j.issn.1001-9278.2022.04.010

• 材料与性能 • 上一篇    下一篇

新型高耐久染料系聚乙烯醇偏光膜的性能研究

周文贤(), 李铭全()   

  1. 佛山纬达光电材料股份有限公司,广东 佛山 528136
  • 收稿日期:2021-05-21 出版日期:2022-04-26 发布日期:2022-04-24
  • 通讯作者: 李铭全(1979-),男,光学工程师,研究方向:偏光片等光学薄膜,eric@winda.cn
    E-mail:493693997@qq.com;eric@winda.cn
  • 作者简介:周文贤(1983-),女,高级化工工程师,研究方向:偏光片开发,493693997@qq.com
  • 基金资助:
    佛山市科技创新项目(FS0AA?KJ419?4404?0102)

Research on the properties of new type high⁃durability dye⁃type polyvinyl alcohol polarizer

ZHOU Wenxian(), LI Mingquan()   

  1. WINDA Opto?Electronics Co,Ltd,Foshan 528136,China
  • Received:2021-05-21 Online:2022-04-26 Published:2022-04-24
  • Contact: LI Mingquan E-mail:493693997@qq.com;eric@winda.cn

摘要:

将新型染料系偏光膜与碘系偏光膜进行系统性对比分析,采用分光光度计测试其透过率、偏光度、色相等光学指标,并进行高温高湿、高温、氙灯紫外老化等试验,分析测试前后的色相变化。结果表明,新型高耐久染料系偏光膜在透过率为39 %时,偏光度为99.7 %,较传统的染料系偏光膜有明显的提升;将偏光片放置于仪表盘内进行氙灯紫外老化测试,新型高耐久染料系偏光膜的色相变化(ΔEs)为 3.48,仅为深浅变化;碘系偏光膜的ΔEs为 19.63,颜色明显变化成棕色;高温高湿85 ℃/85 %/1 000 h耐候测试后,新型染料系偏光膜的偏光度仍为99 %,碘系偏光膜已退偏完全失效;新型染料系偏光膜具有优异的高温耐候性能、耐氙灯紫外老化性能、高温高湿耐候性能,满足105 ℃/1 000 h及85 ℃/85 %/1 000 h耐候性能,适用于电表、车载等领域中。

关键词: 染料系偏光膜, 碘系偏光膜, 高温耐候性能, 高温高湿耐候性能, 氙灯老化测试

Abstract:

The new dye?type polarizer and the iodine?type polarizer were systematically compared. The optical parameters of transmittance, polarization efficiency, hue and hue changes were analyzed after moisture test, high temperature test, xenon lamp UV aging test by using a spectrophotometer. The new high?durability dye?type polarizer was polarization efficiency of 99.7 % at transmittance 39 %. Compared with the traditional dye?type polarizer, there was a significant improvement. When the polarizers were placed in the instrument panel and executed the xenon lamp UV aging test. The hue change ΔEs of the new high?durability dye?type polarizers is 3.48, and the hue change ΔEs of the iodine?type polarizer was 19.63, which was obviously reddish brown. moisture resistance test at 85 ℃/85 %/1 000 h, the polarization efficiency of the new dye?type polarizers was still 99 %, and the iodine?type polarizer had completely depolarized and failed. The experimental results show that the new dye?type polarizing film has superior high temperature weather resistance, xenon lamp ultraviolet aging resistance, moisture resistance than iodine?based polarizing film, and meets the weather resistance of 105 ℃/1 000 h and 85 ℃/85 %/1 000 h. It is applicable to use at electric meters, automotive and other fields.

Key words: dye?type polarizer, iodine?type polarizer, high temperature resistance, moisture resistance, xenon lamp aging test

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