Fabrication of Curdlan connected honeycomb-like 3D BN-CNT network for enhancing the thermal conductivity of epoxy composites

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-02-09 DOI:10.1016/j.cej.2025.160443

Chen Han , Jie Ma , Hongwei He , Wenwen Yu , Yuchen Zhang , Chen Cui , Qingyuan Ma , Yushi Jin

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引用次数: 0

Abstract

Polymer composites have excellent properties and become important materials in the field of microelectronic devices and wireless communication technology. In this paper, BNNS-CNT (mass ratio of BNNS:CNT = 10:1) was prepared by grafting treated carbon nanotubes (CNT) onto exfoliation-modified boron nitride nanosheets (BNNS-OH). Then BNNS-CNT is constructed into a honeycomb-like 3D BNNS-CNT using gel polysaccharide (Curdlan). Finally, the epoxy (EP) was poured on the surface of 3D BNNS-CNT to obtain 3D BNNS-CNT/EP composites. The 3D BNNS-CNT structure is characterized by light weight (0.61 g/cm³), high strength (can withstand 2217 times higher than its own weight) and high thermal conductivity. The thermal conductivity of the 3D BNNS-CNT/EP composites reach 1.05 W·m⁻¹·K⁻¹ when containing 20 wt% 3D BNNS-CNT, which increase 425 % compared to that of the pure EP. Meanwhile, the electrical insulation properties are still excellent (surface resistance of 1.3 × 10¹⁵ Ω and volume resistance of 1.2 × 10¹⁵ Ω·cm). The EP composites prepared in this paper have excellent thermal management properties and great potential applications in electronic devices.

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.