Modified graphite filled natural rubber composites with good thermal conductivity  

作　　者：Junping Song Lianxiang Ma Yan He Haiquan Yan Zan Wu Wei Li 

机构地区：[1]Qingdao University of Science and Technology [2]Department of Energy Engineering, Zhejiang University [3]Department of Energy Sciences, Lund University

出　　处：《Chinese Journal of Chemical Engineering》2015年第5期853-859,共7页中国化学工程学报（英文版）

基　　金：the National Natural Science Foundation of China(51076070,51276091);the Natural Science Foundation of Shandong Province(ZR2012EEQ017);the Research Award Fund for Outstanding Young Scientists in Shandong province(BS2012CL014)

摘　　要：The rubber composites with good thermal conductivity contribute to heat dissipation of tires. Graphite filled natural rubber composites were developed in this study to provide good thermal conductivity. Graphite was coated with polyacrylate polymerized by monomers including methyl methacrylate, n-butyl acrylate and acrylic acid. The ratios between a filler and acrylate polymerization emulsion and those between monomers were varied. Eight types of surface modification formulas were experimentally investigated. Modification formula can affect coating results and composite properties greatly. The best coating type was achieved by a ratio of1:1 between methyl methacrylate and n-butyl acrylate. The coating of graphite was thermally stable in a running tire. Filled with modified graphite, the tire thermal conductivity reached up to 0.517–0.569 W·m-1·K-1. In addition, the mechanical performance was improved with increased crosslink density, extended scorch time and short vulcanization time.The rubber composites with good thermal conductivity contribute to heat dissipation of tires. Graphite filled natural rubber composites were developed in this study to provide good thermal conductivity. Graphite was coated with polyacrylate polymerized by monomers including methyl methacrylate, n-butyl acrylate and acrylic acid. The ratios between a filler and acrylate polymerization emulsion and those between monomers were varied. Eight types of surface modification formulas were experimentally investigated. Modification formula can affect coating results and composite properties greatly. The best coating type was achieved by a ratio of 1：1 between methyl methacrylate and n-butyl acrylate. The coating of graphite was thermally stable in a running tire. Filled with modified graphite, the tire thermal conductivity reached up to 0.517-0.569 W·m^-1·K^-1. In addition, the mechanical performance was improved with increased crosslink density, extended scorch time and short vulcanization time.

关 键 词：Graphite Natural rubber Thermal conductivity Tire Polyacrylate 

分 类 号：TQ332[化学工程—橡胶工业] TB332[一般工业技术—材料科学与工程]