聚丙撑碳酸酯/纳米二氧化硅复合材料的制备  

Preparation of Poly( propylene carbonate)/Nano-silica Composite

作　　者：谢东[1] 王新 吴力立[1] 张超灿[1] XIE Dong;WANG Xin;WU Li-li;ZHANG Chao-can(School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China)

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《塑料工业》2018年第11期24-29,共6页China Plastics Industry

基　　金：国家留学基金(项目号201306955023)

摘　　要：研究了硅烷偶联剂(包括KH-570、WD-923、WD-924、WD-932、WD-30、WD-51)以及官能小分子(丙烯酸AA、马来酸酐MA、甲苯-2,4-二异氰酸酯TDI、甲基丙烯酸甲酯MMA)改性对硅酸钠水解法制备的纳米Si O2在聚丙撑碳酸酯(PPC)中分散性的影响。发现利用KH-570改性以及丙烯酸原位接枝聚合的方法可以制备PPC/nano-SiO_2复合材料,纳米SiO_2在PPC中分散良好,所得膜的透光率为65%。FTIR、SEM、DSC、TG及力学性能分析结果表明,纳米SiO_2与PPC基体间存在较强的相互作用,SiO_2以纳米粒子形式均匀分散在PPC基体中,使PPC的热性能和力学性能都得到了较大提高。The influence of silane coupling agents( including KH-570,WD-923,WD-924,WD-932,WD-30,WD-51) and small molecules( including acrylic acid,maleic anhydride,toluene-2,4-diisocynate,methyl methacrylate) on the dispersion of nano silica formed from hydration of Na2SiO3 in polypropylene carbonate( PPC) solution was investigated. The results show that nano-silica which is modified by KH-570 and crylic acid could disperse very well in PPC matrix,and the transmittance of the PPC/nano-SiO2 film could achieve 65%. FTIR,SEM,DSC,TG and mechanical properties analysis results of the PPC/nanoSiO2 composite could prove that the interaction between nano-silica and PPC is strong,and nano-silica could disperse uniformly in nano size in the PPC matrix, which would improve the mechanical and thermal performance of PPC.

关 键 词：聚丙撑碳酸酯 纳米二氧化硅 纳米复合材料 

分 类 号：O69[理学—化学]