Preparation and Damping Mechanism of Polymer Blends with Broad Damping Temperature Range Damping Elastomer Based on Inter-Phase Cross-Linkages

被引：0
|
作者：
Cheng B. [1 ]
Yang Y. [1 ]
Li T. [1 ]
Lu X. [1 ]
机构：
[1] School of Materials Science and Engineering, South China University of Technology, Guangzhou
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2018年 / 34卷 / 02期
关键词：
Cross-linkage between phases; Damping material; Epoxidized natural rubber; Prepolymers of diallyl phthalate; Wide temperature range;
D O I：
10.16865/j.cnki.1000-7555.2018.02.022
中图分类号：
学科分类号：
摘要：
Based on the vulcanization process of peroxide curing system, dibenzoyl peroxide(BPO) can result in inter-phase linkages by triggering reaction between epoxidized natural rubber(ENR) and prepolymers of diallyl phthalate(DAP-A), thus providing an improved compatibility between phases as well as a broadened effective damping temperature range in ENR/DAP-A binary blends. The proposal was demonstrated by DMA, DSC and broadband dielectric spectroscopy(BDRS) of ENR-40/DAP-A binary blends vulcanized by BPO and sulphur, respectively. On the basis of that, different blending ratios and BPO contents were studied to optimize the damping property of ENR-40/DAP-A binary blends and a series of high damping (tanδmin>0.35) binary blends with an effective temperature range of 178℃ from -33℃ to 145℃ were obtained. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：129 / 135
页数：6
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