温敏聚氨酯/改性石墨烯复合膜的制备及透湿性能研究  

Preparation and moisture-penetrability of thermo-sensitive polyurethane/modified graphene membrane

作　　者：杨群 代正伟[2] 董军[2] YANG Qun;DAI Zheng-wei;DONG Jun(School of Fashion Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;College of Material and Textile Engineering,Jiaxing University,Jiaxing 314001,China)

机构地区：[1]上海工程技术大学服装学院,上海201620 [2]嘉兴学院材料与纺织工程学院,浙江嘉兴314001

出　　处：《应用化工》2019年第8期1897-1900,1903,共5页Applied Chemical Industry

基　　金：浙江省自然科学基金青年基金项目(LQ18E030006);上海工程技术大学科研启动项目(0239-E3-0507-19-05165);嘉兴市科技计划项目(2015C13005);嘉兴市皮革和纺织品染整清洁生产创新团队开放基金(JXLD2016-06)

摘　　要：以石墨为原料,经氧化、还原后,与丙烯酰胺和丙烯酸进行聚合改性,制备改性石墨烯(G-PAM-PAA),并与温敏聚氨酯(PU)共混,制备温敏聚氨酯/改性石墨烯复合膜,研究了复合膜的转变温度、微观结构及透湿性。结果表明,在低浓度下G-PAM-PAA纳米颗粒在PU中具有很好的分散性,且复合膜的转变温度随G-PAM-PAA含量的增加而降低。在相同的环境湿度和温度下,复合膜的透湿性随G-PAM-PAA含量的增加而提高,而随着环境温度的提高,复合膜的透湿性增加。Graphene-PAM-PAA(G-PAM-PAA)was synthesized by acrylamide,acrylic acid and graphene firstly,and polyurethane/graphene-PAM-PAA composite membrane was then prepared through blending by using thermo-sensitive polyurethane and G-PAM-PAA.The glass transition temperature,microstructure and moisture-penetrability of the composites were investigated.The results show that G-PAM-PAA nanoparticles with a good dispersion in polyurethane.Tg of the composite materials decreased with the G-PAM-PAA content increasing.Moisture-penetrability of composite materials increased with the G-PAM-PAA content increasing,meanwhile,it increased with the moisture temperature increasing,which indicated that the composite membranes have the thermo-sensitivity responsiveness,which is higher than PU.

关 键 词：聚氨酯 改性石墨烯 温敏性 透湿性 

分 类 号：TB34[一般工业技术—材料科学与工程] TB381