改性纳米二氧化硅对天然橡胶机械性能的影响:实验与分子模拟  

Effect of modified nano-silica on mechanical properties of natural rubber:Experiment and molecular simulation

作　　者：杨子凡 王晶[1,2] 陈梦寒 徐颖淑 贾红兵 YANG Zi-fan;WANG Jing;CHEN Meng-han;XU Ying-shu;JIA Hong-bing(Key Laboratory of Soft Chemistry and Functional Materials of Ministry of Education,Nanjing University of Science and Technology,Nanjing 210094,China;Institute of Mold Technology,Changzhou Vocational Institute of Mechatronic Technology,Changzhou 213164,China)

机构地区：[1]南京理工大学软化学和功能材料教育部重点实验室,南京210094 [2]常州机电职业技术学院模具技术学院,江苏常州213164

出　　处：《合成橡胶工业》2024年第3期269-269,共1页China Synthetic Rubber Industry

摘　　要：分别使用1-烯丙基-3-甲基咪唑氯盐(AMI)改性前与改性后的纳米二氧化硅(AMI-二氧化硅)对天然橡胶(NR)进行增强,并通过实验与分子模拟相结合的方式探究了2种NR纳米复合材料的力学性能和结合能。结果表明,AMI-二氧化硅对NR的增强效果更好;AMI-二氧化硅在NR中的分散性更好,有效接触面积更大,更有利于应力传递,因此AMI-二氧化硅/NR纳米复合材料的力学性能更好。Nano-silica was a non-toxic and biocompatible inorganic filler,which could endow rubber with excellent tensile strength,thermal stability,and abrasion resistance[1].How-ever,the rich polar groups of silanol in nano-silica reduced its compatibility with the matrix,so the modification of nano-silica was a necessary condition for the improvement of the mechanical properties of the composites.

关 键 词：纳米二氧化硅 1-烯丙基-3-甲基咪唑氯盐 改性 天然橡胶 分子模拟 力学性能 结合能 

分 类 号：TQ330.1[化学工程—橡胶工业]