Fabrication of β-cyclodextrin-crosslinked epoxy polybutadiene/hydroxylated boron nitride nanocomposites with improved mechanical and thermal-conducting properties

Yinxin Yang; Lingyun Huang; Quanquan Dai; Long Cui; Shijun Liu; Yanlong Qi; Wei Dong; Jianyun He; Chenxi Bai

Journal of Materials Research and Technology (Nov 2019)

Fabrication of β-cyclodextrin-crosslinked epoxy polybutadiene/hydroxylated boron nitride nanocomposites with improved mechanical and thermal-conducting properties

Yinxin Yang,
Lingyun Huang,
Quanquan Dai,
Long Cui,
Shijun Liu,
Yanlong Qi,
Wei Dong,
Jianyun He,
Chenxi Bai

Affiliations

Yinxin Yang: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Science and Technology of China, Hefei, 230026, China
Lingyun Huang: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Science and Technology of China, Hefei, 230026, China
Quanquan Dai: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Long Cui: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Shijun Liu: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Yanlong Qi: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Wei Dong: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Jianyun He: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; Corresponding authors.
Chenxi Bai: Key Laboratory of High-Performance Synthetic Rubber and Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; University of Science and Technology of China, Hefei, 230026, China; Corresponding authors.

Journal volume & issue: Vol. 8, no. 6
pp. 5853 – 5861

Abstract

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In this work, hexagonal boron nitride (hBN) was modified to introduce hydroxyl groups. The abundant hydroxyl groups in β-cyclodextrin (βCD) provide many reactive sites to form covalent links with epoxy groups in epoxy butadiene rubber (EBR). Therefore, we propose the utilization of biological βCD as a novel interfacial crosslinker, assisting in the dispersion of the hydroxylated hBN (mBN) via hydrogen bonding, to prepare EBR/βCD/mBN nanocomposites. Such interfacial interactions not only effectively promote the homogeneous dispersion of mBN in the matrix, but also enhance the mechanical property of nanocomposites. Meanwhile, a high thermal conductivity of 0.187 W/m K was obtained by introducing mBN (4 wt%), reaching 2.83 times of the value for the vulcanized butadiene rubber (BR, 0.066 W/m K). The promising mechanical and thermal conductivity properties of our new materials, and the environmentally friendly curing agent makes them attractive for thermal management application, the tread and sidewall compound of tire. Keywords: Boron nitride, Thermal conductivity, Polybutadiene, Nanocomposites

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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