Effect of Matrix Modification on the Electromagnetic Properties of Conductive Carbon Black/Natural Rubber Composites

被引：0
|
作者：
Lü Z. [1 ]
Wang Z. [1 ,2 ]
Zhao P. [1 ]
Luo Y. [1 ]
机构：
[1] Chinese Agricultural Ministry Key Laboratory of Tropical Crop Product Processing, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang
[2] College of Chemical Engineering and Environment, North University of China, Taiyuan
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2018年 / 34卷 / 11期
关键词：
Electromagnetic property; Epoxy modification; Grafting modification; Natural rubber;
D O I：
10.16865/j.cnki.1000-7555.2018.11.012
中图分类号：
学科分类号：
摘要：
Through conductive carbon black (CCB), using natural rubber (NR), epoxidized natural rubber(ENR) and methyl methacrylate grafted natural rubber (MGNR) as materials, composites of NR/CCB, ENR/CCB, MGNR/CCB, NR/ENR/CCB, NR/MGNR/CCB were prepared by mechanical mixing. The results show that the dispersion of CCB particles in the grafted modified matrix is better than that in the modified epoxy matrix. Among them, NR/ENR/CCB has the broadest effective bandwidth (3.20 GHz) and NR/MGNR/CCB has the best microwave absorption capacity (-42.8 dB). Moreover, epoxidation has a positive effect on broadening effective bandwidth, while grafting of methyl methacrylate can enhance microwave absorption capacity of the composites. Additionally, blending of modified natural rubber and natural rubber (NR/ENR/CCB and NR/MGNR/CCB) shows synergic effect on reinforcing the microwave absorbing performance. With the microwave parameters, the possible microwave attenuation was discussed. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：69 / 73
页数：4
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