膨胀石墨改性氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物/聚丙烯弹性体的制备与性能  

Preparation and properties of expanded graphite modified hydrogenated styrene-butadiene-styrene block copolymer/polypropylene elastomers

作　　者：高文通 张波 黄玉安[1] 陈韶[2] 韩冰[1] GAO Wen-tong;ZHANG Bo;HUANG Yu-an;CHEN Shao;HAN Bing(School of Materials Science and Engineering,Nanjing Institute of Technology,Nanjing 211167,China;Jiangsu Product Quality Testing&Inspection Institute,Nanjing 210007,China)

机构地区：[1]南京工程学院材料科学与工程学院,南京211167 [2]江苏省产品质量监督检验研究院,南京210007

出　　处：《合成橡胶工业》2023年第1期23-27,共5页China Synthetic Rubber Industry

基　　金：江苏省产学研合作项目(BY 2020053);江苏省市场监督管理局科技计划项目(KJ 207510);江苏省研究生科研与实践创新计划项目(SJCX 21_0936);南京工程学院引进人才科研启动基金项目(YKJ 201955)。

摘　　要：分别采用膨胀石墨和纳米Fe3O4插层膨胀石墨改性氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物(SEBS)/聚丙烯(PP)弹性体材料,探讨了膨胀石墨用量及纳米Fe3O4插层复合膨胀石墨对弹性体拉伸性能、回弹性和导电性能的影响规律。结果表明,膨胀石墨的加入可有效提高SEBS/PP弹性体的回弹性和导电性能,当膨胀石墨用量为3.5份(质量)时,弹性体的回弹性最佳,表面电阻率最低,但其拉伸强度有所下降。采用纳米Fe3O4插层膨胀石墨改性SEBS/PP弹性体可有效改善其拉伸性能,并可进一步降低表面电阻率和体积电阻率。Hydrogenated styrene-butadiene-styrene block copolymer/polypropylene elastomers were modified with expanded graphite(EG)and nano-Fe3O4 intercalated EG respectively,the effects of amount of EG and nano-Fe3O4 intercalated EG on the tensile properties,resilience property and electrical conductivity of the elastomers were investiga-ted.The results showed that the addition of EG could effectively improve the resilience and electrical conductivity of the elastomers.When the amount of EG was 3.5 phr(mass),the elastomer had the best resilience and the lowest surface resistivity,but its tensile strength decreased.The tensile properties of the elastomer modified by nano-Fe3O4 intercalated EG could be effectively improved,and the surface resistivity and volume resistivity could be further reduced.

关 键 词：膨胀石墨 纳米四氧化三铁 氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物 聚丙烯 拉伸性能 导电性能 

分 类 号：TQ334.9[化学工程—橡胶工业]