Abstract In this work, based the perspective of thermodynamics and dynamics theory, we used a simple, convenient and green melt blending method to prepare polycarbonate (PC)/poly (styrene-co-acrylonitrile) (SAN)-SiO2 light-scattering materials containing “pomegranate-like” SAN-SiO2 microspheres. The small spherical particles (SiO2) of the composite microspheres could produce multiple scattering effect, reducing the direct transmittance and increasing the scattering transmittance, which greatly improved the light-scattering performance of the material. The effective scattering range and scattering uniformity of the material were obviously improved on the premise that the transmittance and haze slightly lost even increased. In addition, due to the limited volume, the selective distribution of SiO2 particles in the SAN dispersed phases greatly reduced the percolation threshold of the scattering angle by 65%. In short, this work provided a light-scattering material with excellent light-scattering performance and mechanical properties, which was expected to be made into a thin and effective light-scattering film for large-screen display, flexible lighting and other fields.

中文翻译：

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基于大屏幕显示具有优异有效散射范围的含有“石榴状”SAN-SiO2微球的PC光散射材料

摘要 本研究从热力学和动力学理论的角度，采用一种简单、方便、绿色的熔融共混方法制备了聚碳酸酯（PC）/聚（苯乙烯-共-丙烯腈）（SAN）-SiO2 光散射材料，其中含有“石榴状”SAN-SiO2 微球。复合微球的小球状颗粒（SiO2）可产生多重散射效应，降低直接透射率，提高散射透射率，大大提高了材料的光散射性能。在透光率和雾度略有下降甚至增加的前提下，材料的有效散射范围和散射均匀度得到明显提高。此外，由于数量有限，SiO2 颗粒在 SAN 分散相中的选择性分布使散射角的渗透阈值大大降低了 65%。总之，这项工作提供了一种具有优异光散射性能和机械性能的光散射材料，有望制成薄而有效的光散射薄膜，用于大屏幕显示、柔性照明等领域。