高性能羧基化多壁碳纳米管/NR复合材料的制备、结构与性能  

Preparation,Structure and Properties of High-performance MWNT-COOH/NR Composite

作　　者：吴宁[1] 王振华[1] 张立群[1,2] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029 [2]北京化工大学教育部纳米材料制备与应用科学重点实验室,北京100029

出　　处：《橡胶工业》2011年第11期645-652,共8页China Rubber Industry

摘　　要：以超声分散的羧基化多壁碳纳米管(MC)悬浮液填充天然胶乳,采用喷雾干燥法制备MC/NR复合材料,研究偶联剂Si69和KH-550改性对复合材料中填料分散及各项性能的影响。结果表明:喷雾干燥法制备的MC/NR复合材料中碳纳米管分散较好;偶联剂Si69和KH-550与MC表面的羧基发生了化学反应,使其在复合材料中的分散得到进一步改善;当MC用量高于10份时,KH-550改性MC/NR复合材料表现出优异的物理性能和导电性能。Carboxylated MWNT-COOH（MC）/NR composite was prepared by spray drying method from NR latex filled with supersonically dispersed suspension of MC,and the effects of coupling agent Si69 and KH-550 on filler dispersion and properties of composite were studied.The results showed that the dispersion of MC in MC/NR composite prepared by spray drying method was good.Coupling agent Si69 and KH-550 chemically reacted with carboxyl group on MC,which led to further improvement on the dispersion of MC.When the addition level of MC was more than 10 phr,KH-550 modified MC/NR composite showed excellent physical properties and electrical conductivity.

关 键 词：羧基化多壁碳纳米管 NR 复合材料 喷雾干燥 硅烷偶联剂 

分 类 号：TQ330.383[化学工程—橡胶工业] TQ331.2