氧化石墨烯/羧基丁腈橡胶纳米复合材料的制备及其耐有机溶剂渗透性能的研究  

Preparation of GO/XNBR Nanocomposite and Study on Its Organic Solvent Impermeability

作　　者：李晓鹏 李雷[1] 赵越[1] 王立莹[1] 陆林 韩国林[1] 李和国[1] LI Xiaopeng;LI Lei;ZHAO Yue;WANG Liying;LU Lin;HAN Guolin;LI Heguo(Research Institution of Chemical Defense,Beijing 100091,China)

机构地区：[1]防化研究院国民核生化灾害防护国家重点实验室,北京100091

出　　处：《橡胶工业》2022年第3期175-180,共6页China Rubber Industry

基　　金：国家重点研发计划资助项目(2016YFC08013)。

摘　　要：采用改进Hummers法制备氧化石墨烯(GO),并以聚乙烯亚胺为“桥接分子”制备GO/羧基丁腈橡胶(XNBR)纳米复合材料,考察GO/XNBR纳米复合材料的微观形貌、力学性能和耐有机溶剂渗透性能。结果表明:GO与XNBR基体结合良好且分散均匀;GO/XNBR纳米复合材料的拉伸强度由纯XNBR胶料的3.9 MPa提高到7.2 MPa(GO用量为0.7份),提高了约1.8倍;随着GO用量增大,GO/XNBR纳米复合材料对有机溶剂的耐渗透时间明显延长。Graphene oxide(GO)was prepared by modified Hummers method,and GO/carboxylated nitrile rubber(XNBR)nanocomposites were prepared with polyethyleneimine as“bridging molecule”.The micro morphology,mechanical properties and organic solvents impermeability of the GO/XNBR nanocomposites were investigated.The results showed that GO and XNBR matrix were bonded well and GO was uniformly dispersed.The tensile strength of the GO/XNBR nanocomposites increased from 3.9 MPa of pure XNBR compound to 7.2 MPa(GO dosage was 0.7 phr),which was about 1.8 times increase.With the increase of GO dosage,and the organic solvents impermeability time of GO/XNBR nanocomposites was obviously prolonged.

关 键 词：羧基丁腈橡胶 氧化石墨烯 纳米复合材料 分散性 有机溶剂 耐渗透性能 

分 类 号：TQ333.7[化学工程—橡胶工业] TQ330.383