电纺制备聚丙烯腈/氮化硼杂化复合纤维及其结构、性能研究

doi:10.11896/cldb.19060142

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Abstract In order to improve the thermal conductivity and adsorption properties of polymers, the polyacrylonitrile/boron nitride(PAN/BN)hybrid fibrous composites were obtained via electrospinning. The structures and properties of PAN/BN fibrous composites were characterized by field emission scanning electron microscopy, fourier transform infrared,differential scanning calorimetry, X-ray diffraction, laser flash analyzer and accele-rated surface area porosimetry system. The influences of different content of BN on the morphology and properties of the resulting composite fibers were studied by changing the weight ratio of polyacrylonitrile and BN. The results show that electrospinning can solve the problem of uniform dispersion of sub-micron boron nitride in polyacrylonitrile, and improve the thermal conductivity and adsorption performance of which effectively as well. The thermal conductivity increases with the increase of boron nitride content in the comoposite fibers. When the actual content of boron nitride is 54.5wt%, the thermal conductivity of the spun PAN/BN composite fibers reaches 3.977 W/(m·K), which is about 82.8 times higher than that of the pure PAN fibers (only 0.048 W/(m·K)).

Key words： electrospinning polyacrylonitrile boron nitride fibrous composites thermal conductivity property adsorption

Published: 29 May 2020

CLC number:

TQ164

Fund:This work was financially supported by the National Natural Science Foundation of China (11472316), Excellent Team of Scientific and Technological Innovation in Henan Province (CXTD2013048), Key Scientific Research Projects of Henan Education Department (19A430031, 18A430035).

About author:: Yanzhi Wang, female, professor, master supervisor, focusing on the research of polymer fiber composites and nonwovens, has published more than 20 academic papers in foreign and domestic periodicals, and 8 national authorized patents.

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	WANG Yanzhi
	ZHANG Lingjie
	ZHANG Yifeng
	ZHANG Wangxi

Cite this article:

WANG Yanzhi,ZHANG Lingjie,ZHANG Yifeng, et al. Study on Preparation, Structure and Properties of Polyacrylonitrile/Boron Nitride Hybrid Composite Fibers via Electrospinning[J]. Materials Reports, 2020, 34(12): 12158-12162.

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http://www.mater-rep.com/EN/10.11896/cldb.19060142 OR http://www.mater-rep.com/EN/Y2020/V34/I12/12158

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