Three-dimensional Structured Boron Nitride and Its Thermally Conductive and Electrically Insulating Composites

doi:10.11985/2021.02.003

Abstract

Abstract:

Among polymer-based thermally conductive composites, composites with a three-dimensional thermally conductive network structure can provide unobstructed thermal conduction paths and significantly reduce interface thermal resistance, which has attracted widespread attention. The research progress of polymer composites with a three-dimensional thermally conductive network structure using boron nitride as a thermally conductive filler is reviewed. Firstly, the intrinsic thermal conductivity of boron nitride and the method of modifying the boron nitride filler are introduced. Secondly, the construction methods of three-dimensional boron nitride thermal network in detail is introduced, including hybrid fillers to construct three-dimensional thermal network, template method, self-assembly method, electrospinning method and molding method. Finally, the potential applications of the three-dimensional nano-boron nitride thermal conductive material are proposed, its current problems and the development trend of this material are introduced.

Key words: Thermal conductive material, three-dimensional thermal network, boron nitride

CLC Number:

TM21

JIANG Wenzheng, LIN Ying, JIANG Pingkai, HUANG Xingyi. Three-dimensional Structured Boron Nitride and Its Thermally Conductive and Electrically Insulating Composites[J]. Journal of Electrical Engineering, 2021, 16(2): 12-24.

Figures/Tables 13

References 50

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填料	聚合物基体	BN改性方法	填料含量	热导率/ (W·m^-1·K^-1)	文献
BN/rGO	天然橡胶	尿素辅助球磨	4.9 vol%	1.29	[26]
BN/GF	PDMS	聚多巴胺包覆+接枝APTS	30 wt%	23.45(∥)/2.11(⊥)	[27]
BN/MWCNT	PVDF	聚多巴胺包覆+接枝APTMS	25 wt%	1.51	[28]
BN/ CNT	EP	高温强碱处理+接枝硅烷偶联剂	50 wt%	1.986	[29]
BN	EP	高温强碱处理+接枝PGMA	15 vol%	1.198	[30]

填料	基体	构筑方法	填料含量	热导率/ (W·m^-1·K^-1)	文献
BN/rGO	NR	冰模板法	4.9 vol%	1.29	[26]
BN/GF	PDMS	模板法	30 wt%	23.45(∥)/2.11(⊥)	[27]
BN/CNT	EP	杂化填料	50 wt%	1.986	[30]
BNNT	CNFs	真空过滤	25 wt%	21.39	[33]
BN/Al₂O₃	PDMS	3D打印	35 wt%	3.64	[34]
BNNs/AgNPs	EP	杂化填料	20 wt%	1.13	[35]
BN/BNNS	PDMS	模板法	10 wt%	0.56	[36]
BNNS	EP	模板法	1.1 vol%	0.6	[37]
BN	EP	冰模板法	34 vol%	4.42	[38]
BNNS	EP	冰模板法	15 vol%	3.87(∥)/4.02(⊥)	[39]
BN/rGO	EP	自组装法	13.16 vol%	5.05	[41]
BNNS	PVDF	静电纺丝	33 wt%	16.3	[42]
BNNS	PS/PP	溶液辅助热压法	50 wt%	5.57	[43]
BN/GNPs	PA6	熔融混合模压法	21 vol%	8.96	[44]
BN	EP	盐模板法	59.43 wt%	6.11	[45]
BN	PU	鼓泡法+热压法	50 wt%	10.28	[46]
BN	PI	力化学法	20 wt%	14.7	[47]
BN	PA66	等离子体辅助力化学法	20 wt%	26.3	[48]