pmma光散射材料的制备与光学性能-论文

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10.3788/gzxb20124106.0723

聚硅氧烷微球/PM M A光散射材料的

制备与光学性能

汤华清唐振方赵亭亭粟万里叶勤

暨南大学物理系,广州510632

摘要:采用共混法以聚硅氧炕微球作为光散射剂,聚甲基丙烯酸甲酯为基材制备光散射材料.研究了聚硅氧烷微球的粒径与浓度对光散射材料总光透过率与扩散率的影响并与理论模拟值进行了对比分析.研究结果表明,聚硅氧烷微球与聚甲基丙烯酸甲酯折射率匹配良好,较好地解决了光散射材料透光率与扩散率之间的矛盾,实现了高透射与高雾度的双重要求.当微球粒径为5μm,填充浓度为0.6w t%时,厚度为1m m的光散射材料总光透过率为88.5%,扩散率为89.5%.可见光波段总光透过率基本不受光源波长变化影响.选取合适粒径,扩散率随光源波长变化也可降至最低,有效避免了波长色散现象.实验数据与理论模拟结果符合良好.

光散射材料;总光透过率;扩散率;聚硅氧烷微球

TB332A1004-4213(2012)06-0723-5

广州市科技计划项目(N o.11C43010793,N o.12A52071614)资助

汤华清(1982-),男,硕士研究生,主要研究向为光电功能材料.E m a i l:zht t i ng85@

唐振(1969-),男,副教授,博士.主要研究向为光电功能材料与器件.E m ai l:t t a ngz f@j .c n 2011-12-232012-02-24

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