南方科技大学知识苑(SUSTech KC): The effect of mixing sequence on the block copolymer compatibilization of polybutadiene-natural rubber blend

题名	The effect of mixing sequence on the block copolymer compatibilization of polybutadiene-natural rubber blend
作者	Wang, Keqiang 1; Zhong, Shuo 1; Fu, Jia 2; Wang, Wenjin 1; Chen, Zhongren2
通讯作者	Chen, Zhongren
发表日期	2016
ISSN	1951-6851
会议录名称	PROCEEDINGS OF THE 2016 INTERNATIONAL CONFERENCE ON INNOVATIVE MATERIAL SCIENCE AND TECHNOLOGY (IMST 2016)
卷号	139
页码	75-84
出版地	29 AVENUE LAVMIERE, PARIS, 75019, FRANCE
出版者	ATLANTIS PRESS
摘要	The remarkable effect of the mixing sequence on the block copolymer compatibilization was investigated in this study, where a liquid butadiene-isoprene copolymer rubber (LIR-390) was used to compatibilize the polybutadiene/natural rubber (BR/NR, 30/70) blend. We have found that properly chosen mixing sequence would greatly improve the effectiveness of LIR-390 compatibilization in NR/BR blend. When LIR was first mixed with NR, and then blended with BR, the NR/BR/LIR blend showed the best compatibilization, as the AFM phase morphology revealed the significantly reduced domain size of dispersed BR phases. It is unusual that both the processing characteristics of this unvulcanized blend and the mechanical properties of its vulcanizate are improved: the unvulcanized blend had the lowest G' and eta, while the vulcanizate had the highest G' and eta among four controls. We attribute this phenomenon to the "sliding effect" of the uncured sample and the "networking effect" of LIR with NR and BR at the interface after vulcanization. The fatigue crack propagation measurement revealed the lowest crack growth rate for M3.
关键词	mixing sequence block copolymer compatibilization rubber blend
学校署名	通讯
语种	英语
相关链接	[来源记录]
收录类别	CPCI-S
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000391726800011
来源库	Web of Science
引用统计	被引频次[WOS]：0
成果类型	会议论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/24939
专题	理学院_化学系
作者单位	1.Ningbo Univ, Fac Mat Sci & Chem Engn, Dept Polymer Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China 2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
通讯作者单位	化学系
推荐引用方式 GB/T 7714	Wang, Keqiang,Zhong, Shuo,Fu, Jia,et al. The effect of mixing sequence on the block copolymer compatibilization of polybutadiene-natural rubber blend[C]. 29 AVENUE LAVMIERE, PARIS, 75019, FRANCE:ATLANTIS PRESS,2016:75-84.