文献类型：期刊文献

英文题名：Polyhedral oligomeric silsesquioxane polyimide nanocomposites for color filters and flexible conductive films

作者：Qian, Min[1];Zhou, Bo[2];Liu, Gang[2];Gao, Yang[3];Niu, Yueping[1,4];Gong, Shangqing[1,4]

机构：[1]East China Univ Sci & Technol, Sch Sci, Dept Phys, Shanghai 200237, Peoples R China;[2]Shanghai Inst Spacecraft Equipment, Res & Dev Ctr, Shanghai, Peoples R China;[3]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China;[4]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai, Peoples R China

年份：2021

卷号：138

期号：19

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20205009619938);WOS:【SCI-EXPANDED(收录号:WOS:000597586100001)】；

基金：Fundamental Research Funds for the Central Universities, Grant/Award Number: 222201714017; National Natural Science Foundation of China, Grant/Award Number: 61804054; Natural Science Foundation of Shanghai, Grant/Award Number: 18ZR1410400; Shanghai Aerospace Science and Technology Innovation Fund, Grant/Award Number: SAST2019-067; Shanghai Sailing Program, Grant/Award Number: 17YF1403300; Key Research Plan of the National Natural Science Foundation of China, Grant/Award Number: 12034007

语种：英文

外文关键词：atomic oxygen; dye; low Earth orbit; polyhedral oligomeric silsesquioxane; silver nanowire

摘要：Color filters and conductive films are widely used in spacecraft, while the lack of lightweight, flexibility, and atomic oxygen (AO) durability confine their potential applications in low earth orbit. In this study, a clear poly(amic acid) with an empirical 20 wt% polyhedral oligomeric silsesquioxane (POSS) solid content is designed for transparency and AO durability. Red, green, blue, and yellow dyes are reinforced with small amounts of 1-5 wt% in POSS polyimides for color filters. A silver nanowire network film is infiltrated onto the POSS polyimide for conductive film. Erosion depth upon hyperthermal AO exposure, surface morphology, surface chemistry, optical transparency, and conductivity have been systematically investigated. The erosion yields of all 20 wt% POSS polyimides decrease by an order of magnitude when subjected to 2.32 +/- 0.05 and 2.39 +/- 0.06 x 10(20) atoms cm(-2) AO fluences, as passivating SiOx networks are formed on film surface. The small-amount dye additives into polyimides do not introduce obvious changes in AO durability and surface chemistry. The silver nanowire infiltrated POSS polyimide film shows a 65.7% transmittance at 550 nm and a sheet resistance of 8.50 +/- 0.36 Ohm square(-1). This study reveals promising attempts of POSS-polyimide-based color filters and flexible conductive films for potential space applications.