纳米复合粒子GO-g-PS改性SBS复合材料性能的研究  

Properties of GO-g-PS Nanoparticles Modified SBS

作　　者：张燕[1] 翟松涛[1] 唐龙祥[1] 刘春华[1] 王平华[1] ZHANG Yan ZHAI Songtao TANG Longxiang LIU Chunhua WANG Pinghua(Hefei University of Technology,Hefei 230009,Chin)

机构地区：[1]合肥工业大学化学与化工学院,安徽合肥230009

出　　处：《橡胶工业》2016年第12期715-719,共5页China Rubber Industry

摘　　要：通过原位自由基聚合法在氧化石墨烯(GO)表面接枝聚苯乙烯(PS),制备纳米复合粒子GO-g-PS,并以此对苯乙烯-丁二烯-苯乙烯三嵌段共聚物(SBS)进行改性,研究其对SBS物理性能、热稳定性和动态力学性能的影响。结果表明:PS成功接枝到GO表面,生成GO-g-PS;当GO-g-PS质量分数为0.03时,GO-g-PS改性SBS复合材料的拉伸强度和拉断伸长率较高;与SBS和GO改性SBS复合材料相比,GO-g-PS改性SBS复合材料的物理性能、热稳定性和高温峰玻璃化温度均提高。GO-g-PS nanoparticles were prepared by grafting polystyrene（PS）onto the surface of graphene oxide（GO） by in-situ free radical polymerization,and the obtained GO-g-PS nanoparticle was applied to modify styrene-butadiene-styrene block copolymer（SBS）. The physical properties,thermal stability and dynamic mechanical properties of GO-g-PS modified SBS composites were investigated. The results showed that PS was grafted onto the surface of GO. When the mass fraction of GO-g-PS was 0. 03,the tensile strength and elongation at break of GO-g-PS modified SBS composites were higher. Compared with SBS and GO modified SBS composites,the physical properties,thermal stability and glass transition temperature in the high temperature region of GO-g-PS modified SBS composites were improved.

关 键 词：氧化石墨烯 聚苯乙烯 苯乙烯-丁二烯-苯乙烯嵌段共聚物 接枝改性 热稳定性 动态力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程] TB383.1