文献类型：期刊文献

英文题名：Preparation of PP/PC light-diffusing materials with UV-shielding property

作者：Zhu, Huihao[1];Wang, Wenhui[1];Wang, Yu[1];Lin, Zhenbin[1];Ji, Huajian[1];Chen, Xin[1];Li, Guo[1];Ma, Yulu[1];Xie, Linsheng[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：44

期号：9

起止页码：5553

外文期刊名：POLYMER COMPOSITES

收录：;EI(收录号：20232814368005);WOS:【SCI-EXPANDED(收录号:WOS:001021986700001)】；

语种：英文

外文关键词：anti-ultraviolet additives; light-diffusing materials; melt-blending; morphology

摘要：In this study, we presented a one-step melt-blending method to fabricate polypropylene (PP)/polycarbonate (PC) light-diffusing materials. A promising balance between haze and transmittance was obtained by the addition of small amount of PC to the matrix. On the basis of Mie scattering theory and morphology analysis, the correlation between processing conditions and light-diffusing properties was built. Low rotor speed and high viscosity ratio were beneficial to optical properties of PP/PC composites. To extend the advanced application, two general anti-ultraviolet additives nanoscale titanium dioxide (Nano-TiO2) and 2-(2-hydroxy-5-methylphenyl) benzotriazole (UV-P) were added to impart UV-shielding property to the composites. Their specific influences on the morphology and comprehensive properties of PP/PC composites were studied. It was found that the introduction of Rayleigh scattering raised by Nano-TiO2 could strengthen the scattering effect and cause a significant reduction in light transmittance, while UV-P had little effect on the optical properties of the light-diffusing composites. In summary, this study prepared the PP/PC composites with high-performance light scattering and UV-shielding properties applying a facile blending method, which showed a potential application in flexible lightings and LCD displays.