Tailoring dielectric properties of natural rubber/millable polyurethane elastomer blends by filler embedding

被引：4
|
作者：
Jose, Renu [1 ]
Varghese, Lity Alen [2 ]
Gopalakrishna Panicker, Unnikrishnan [1 ]
机构：
[1] Natl Inst Technol, Dept Chem, Calicut 673601, Kerala, India
[2] Natl Inst Technol, Dept Chem Engn, Calicut 673601, Kerala, India
来源：
POLYMER BULLETIN | 2022年 / 79卷 / 04期
关键词：
Natural rubber; Millable polyurethane; Polymer composite; Dielectric properties; CARBON-BLACK; ELECTRICAL-PROPERTIES; COMPOSITES; NANOCOMPOSITES; CONDUCTIVITY; MORPHOLOGY; TRANSPORT; GRAPHITE;
D O I：
10.1007/s00289-021-03595-z
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The dielectric features of Natural Rubber/Millable Polyurethane elastomer (NR/MPU) blends have been effectively modulated by embedding them with nanofillers. The characteristics of the modified blends such as capacitance, dielectric permittivity, loss factor, volume resistivity, and electrical impedance have been studied, within a frequency range of 1 kHz to 10 MHz, with respect to filler loading, polymer-filler interactions, and macromolecular segmental mobility. The improvement in the dielectric properties of the systems with filler loading has been attributed to the development of micro-capacitance structures in the NR/MPU matrix which favours relaxation processes depending on the interfacial polarisation and segmental mobility.
引用
收藏
页码：2041 / 2060
页数：20
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