Thermodynamics favoured preferential location of nanoparticles in co-continuous rubber blend toward improved electromagnetic properties

文献类型： 外文期刊

第一作者： Li, Lefan

作者： Li, Lefan;Wang, Zhongqi;Zhao, Pengfei;Luo, Yongyue;Liao, Lusheng;Xu, Kui;Li, Puwang;Peng, Zheng;Li, Lefan;Wang, Zhifen;Peng, Zheng;Wang, Zhongqi

作者机构：

关键词： Elastomers;Multifunctional composites;Thermodynamics;Structure-property relations

期刊名称：EUROPEAN POLYMER JOURNAL （ 影响因子：4.598； 五年影响因子：4.674 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Engineered blend structure with tailor-made distribution of nanoparticles is the prime requisite to obtain materials with extraordinary functional properties. Here, preferential location of carbon black (CB) has been achieved in a binary elastomeric bend based on natural rubber (NR) and epoxidized natural rubber (ENR). Meticulous investigation has been conducted via thermodynamic, microscopic and electromagnetic analysis in order to illustrate the morphology promoted performance behaviors. It is found that the filler-rubber interfacial tensions difference induces the preferential localization of CB in NR/ENR blend, thus endowing the composites with lower electrical percolation (2.11 vol.%), higher microwave absorption capacity (-19.31 dB) and broader effective absorption bandwidth (2.96 GHz). Such improved electromagnetic properties are ascribed to the higher conduction loss, stronger dielectric relaxation and more interface scattering of CB/NR/ENR composites.

分类号： O62

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