改性螺旋纳米碳纤维对补强天然橡胶的力学性能及结合胶量的影响研究  

Influence of HCNFs surface modification on the mechanical property and binding amount of reinforced NR

作　　者：郑星龙 金永中 陈建 王成 何刚 周全权 Zheng Xinglong;Jin Yongzhong;Chen Jian;Wang Cheng;He Gang;Zhou Quanquan(Department of Materials Science and Engineering,Sichuan University of Science&Engineering,Zigong 643000;Institute of Carbon Black Industry Research&Design,China Rubber Group,Zigong 643000)

机构地区：[1]四川轻化工大学材料科学与工程学院,自贡643000 [2]中昊黑元化工研究设计院有限公司,自贡643000

出　　处：《化工新型材料》2020年第10期160-164,171,共6页New Chemical Materials

基　　金：国家自然科学基金面上项目(51572177);四川省科技厅项目(2017JY0158)。

摘　　要：通过添加改性螺旋纳米碳纤维(HCNFs)填料制备了HCNFs/炭黑/天然橡胶(HCNFs/CB/NR)复合材料,重点研究4种不同的表面改性方法对HCNFs的形貌结构及其补强橡胶复合材料的力学性能和结合胶量的影响。采用FESEM、XRD、拉伸试验机和应变扫描仪对实验样品进行了表征分析。结果表明,同等填料添加量下,SiO2@HCNFs/CB/NR复合材料混炼胶的综合力学性能最好,表面负载ZnO的混炼胶对拉伸性能及断裂伸长率的提升贡献最大。5种复合材料混炼胶的加工性能相近,且4种填料表面改性方式均对复合材料的结合胶含量有提升作用。Helical carbon nanofibers(HCNFs)/carbon black(CB)/natural rubber(NR)composites were prepared by adding modified HCNFs filler.The effects of four different surface modification methods on the morphology and structure of HCNFs and the mechanical properties and binding amount of HCNFs reinforced NR composites were emphatically studied,respectively.The samples were characterized by FESEM,XRD,tensile testing machine and strain scanner.The results shown that HCNFsSiO2@HCNFs/CB/NR-composite blends with the same amount of filler had the best comprehensive mechanical properties,and the blends with surface load ZnO made the largest contribution to the improvement of tensile properties and elongation at break.The processing properties of 5 kinds of composite mixtures were similar,the surface modification methods of 4 kinds of fillers all improved the bonded rubber content of composite materials.

关 键 词：螺旋纳米碳纤维 表面改性 天然橡胶 力学性能 结合胶 

分 类 号：TQ300.73[化学工程]