In an embodiment, a composition comprises a polycarbonate; 1 to 5 wt% based on a total weight of the composition of a nanosilica having a D50 particle size by volume of 5 to 50 nanometers; wherein the nanosilica has a hydrophobic coating; and a siloxane domain having repeat units of the formula 10; wherein each R is independently a C1-13 monovalent organic group and the value of E is 2 to 1,000; wherein the composition comprises at least one of a polycarbonate-polysiloxane copolymer, 0.1 to 5 wt% of a polysiloxane homopolymer based on the total weight of the composition, or a plurality of polysiloxane particles having a D50 particle size by volume of 0.1 to 10 micrometers.
在一个实施方案中,一种组合物包括聚
碳酸酯;基于组合物总重量的 1 至 5 wt% 的纳米
二氧化硅,其 D50 粒径(按体积计算)为 5 至 50 纳米;其中纳米
二氧化硅具有疏
水涂层;以及具有式 10 重复单元的
硅氧烷域;其中每个 R 独立地为 C1-13 单价有机基团,且 E 的值为 2 至 1,000 ;其中组合物包括聚
碳酸酯-聚
硅氧烷共聚物中的至少一种、基于组合物总重量的 0.1至5重量%的聚
硅氧烷均聚物(基于组合物的总重量),或多个聚
硅氧烷颗粒,其D50粒径(按体积计算)为0.1至10微米。