聚丙烯腈基高模量碳纤维导热性能的影响因素

doi:10.11896/j.issn.1005-023X.2018.10.019

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Abstract The thermal conductivity of six kinds of polyacrylonitrile (PAN)-based carbon fiber (CF) with different strength and modulus was measured by laser flash method. The effect of the thickness of CF samples and the test temperature on the CF axial thermal conductivity was studied. The crystallite size, orientation and order degree of CF were measured by X-ray diffraction (XRD) and Raman spectroscopy. The relationship between the thermal conductivity of CF and its microstructure was investigated. The results show that the thickness of the PAN-based CF sample has a slight effect on the thermal conductivity test, and the thermal conductivity decreases with the increase of the test temperature. The compactness, crystal size and structural order of the PAN-based CF have a greater impact on its thermal conductivity.

Key words： carbon fiber polyacrylonitrile-based thermal conductivity orientation crystal structure

Published: 25 May 2018 Online: 2018-07-06

CLC number:

TQ342.74

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	Articles by authors
	TIAN Yanhong
	QIAO Weijing
	ZHANG Xuejun
	ZHANG Weiqin

Cite this article:

TIAN Yanhong,QIAO Weijing,ZHANG Xuejun, et al. Factors Affecting the Thermal Conductivity of PAN-based Carbon Fiber with High Modulus[J]. Materials Reports, 2018, 32(10): 1668-1671.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.10.019 OR https://www.mater-rep.com/EN/Y2018/V32/I10/1668

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