新型改性纳米碳酸钙对天然橡胶的补强作用  

Reinforcement Effect of a Novel Modified Nano-CaCO_3 on Natural Rubber

作　　者：贾德民[1] 古菊[1] 周扬波[1] 罗远芳[1] 

机构地区：[1]华南理工大学材料学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2004年第3期94-96,共3页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金重点资助项目 (5 99330 6 0 )

摘　　要：制备了一种新型改性纳米碳酸钙M -CaCO3,采用FTIR、TGA和SEM对MCaCO3的结构形态进行了研究 ;同时探讨了其与天然橡胶 (NR)形成的纳米复合材料(NR/M -CaCO3)硫化胶的结构、形态和力学性能 ,并分别与硬脂酸包覆型工业纳米碳酸钙 (CCR)及其与天然橡胶形成的纳米复合材料 (NR/CCR)硫化胶进行比较 ,结果表明 ,M -CaCO3对NR具有显著的补强作用 ,其补强效果远优于CCR .A novel kind of modified nano-calcium carbonate (M-CaCO_3) was prepared. The structure and morphology of M-CaCO_3 were investigated by FTIR,TGA and SEM. The morphology and mechanical properties of the vulcanizates of NR/M-CaCO_3 nanocomposite were also investigated. The investigation results of M-CaCO_3 and NR/M-CaCO_3 were then respectively compared with those of CCR (industrial nano-CaCO_3 covered with stearic acid) and NR/CCR. It is found that the reinforcement effect of M-CaCO_3 on NR is superior to that of CCR.

关 键 词：纳米碳酸钙 天然橡胶 纳米复合材料 结构 形态 力学性能 

分 类 号：TQ332[化学工程—橡胶工业]