Accelerating the formation of the conjugated ladder structure of Poly(acrylonitrile-co-vinyl acetate) by cross-linked poplar lignin doped with boron phosphate

doi:10.1088/2053-1591/ab7a8d

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Accelerating the formation of the conjugated ladder structure of Poly(acrylonitrile-co-vinyl acetate) by cross-linked poplar lignin doped with boron phosphate
	Shi, Hui ; Ouyang, Qin ; Wang, Jing-yu ; Zhu, Pin-lei ; Hao, Jian-wei ; Huang, Xian-bo
刊名	MATERIALS RESEARCH EXPRESS
	2020
卷号	7 期号:5
关键词	CARBON-FIBERS FLAME-RETARDANT THERMAL-CONDUCTIVITY SURFACE-ANALYSIS KRAFT LIGNINS NITRIC-ACID STABILIZATION PRECURSORS DEGRADATION FRACTIONATION
DOI	10.1088/2053-1591/ab7a8d
英文摘要	Utilizing renewable resources and accelerating thermal stabilization have been two main effective technical means to reduce the cost of poly(acrylonitrile) (PAN) based carbon fibre (CF). In this work, cross-linked poplar lignin (CPPL) with higher carbon content and 15 times the weight-average molecular weight of poplar lignin (PPL) was formed by doping boron phosphate (BP) in situ composites, which was blended with poly(acrylonitrile-co-vinyl acetate) (PANVA) to prepare a low-cost partially bio-based composite PANVA/CPPL-BP. During thermal stabilization, the C1s curve-fitting of x-ray photoelectron spectroscopy (XPS) spectra showed that the conjugated ladder structure of PANVA/CPPL-BP started to form at 230 degrees C, which was 20 degrees C lower than PANVA. And the acceleration in forming conjugated ladder structures was further confirmed by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric (TG), and TG-FTIR. During simulated low-temperature carbonization for composites stabilized at 230 degrees C in advance, the addition of CPPL-BP greatly improved the order of graphitic structure for PANVA. The mechanical property of CF mats has also been obviously improved by CPPL-BP. The possible mechanism that CPPL-BP accelerating the formation of conjugated ladder structures for PANVA/CPPL-BP during thermal stabilization was proposed. With such improvement on accelerating thermal stabilization and utilizing cheap bio-material at the same time, this PANVA/CPPL-BP composite has a great potential in developing low-cost CF.
学科主题	Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19691]
专题	2020专题
作者单位	1.Huang, XB (corresponding author), Kingfa Sci & Technol Co, Guangzhou 510520, Peoples R China. 2.Hao, JW (corresponding author), Beijing Inst Technol, Sch Mat Sci & Engn, Natl Engn Technol Res Ctr Flame Retardant Mat, Beijing 100081, Peoples R China.
推荐引用方式 GB/T 7714	Shi, Hui,Ouyang, Qin,Wang, Jing-yu,et al. Accelerating the formation of the conjugated ladder structure of Poly(acrylonitrile-co-vinyl acetate) by cross-linked poplar lignin doped with boron phosphate[J]. MATERIALS RESEARCH EXPRESS,2020,7(5).
APA	Shi, Hui,Ouyang, Qin,Wang, Jing-yu,Zhu, Pin-lei,Hao, Jian-wei,&Huang, Xian-bo.(2020).Accelerating the formation of the conjugated ladder structure of Poly(acrylonitrile-co-vinyl acetate) by cross-linked poplar lignin doped with boron phosphate.MATERIALS RESEARCH EXPRESS,7(5).
MLA	Shi, Hui,et al."Accelerating the formation of the conjugated ladder structure of Poly(acrylonitrile-co-vinyl acetate) by cross-linked poplar lignin doped with boron phosphate".MATERIALS RESEARCH EXPRESS 7.5(2020).