Core-shell expandable graphite @ aluminum hydroxide as a flame-retardant for rigid polyurethane foams

doi:10.1016/j.polymdegradstab.2017.10.017

CORC > 化学研究所 > 中国科学院化学研究所

	Core-shell expandable graphite @ aluminum hydroxide as a flame-retardant for rigid polyurethane foams
	Wang, Yintao 1,2; Wang, Feng 2; Dong, Quanxiao 3; Xie, Mingchen 2; Liu, Peng 2; Ding, Yanfen 2; Zhang, Shimin ; Yang, Mingshu 2; Zheng, Guoqiang 1,2
刊名	POLYMER DEGRADATION AND STABILITY
	2017-12-01
卷号	146 页码:267-276
关键词	Expandable Graphite Aluminum Hydroxide Core-shell Structure Flame Retardant Rigid Polyurethane Foam
ISSN号	0141-3910
DOI	10.1016/j.polymdegradstab.2017.10.017
英文摘要	To enhance the flame-retardant performance of expandable graphite (EG) in rigid polyurethane foam (RPUF), EG particles were encapsulated with inorganic nanoparticles, namely aluminum hydroxide (ATH), forming complex particles EG@ATH with core-shell structure. After the deposition of ATH shell, the expandability of the particles was enhanced from 163 to 197 ml/g, leading to better flame-retardant performance in RPUF. At a content of 11.5 wt%, the limited oxygen index could be increased from 21.5% to 29.6% by EG@ATH, in comparison to 27.5% by the physical mixture of EG and ATH (EG + ATH). Besides, EG@ATH exhibited better performance than EG + ATH on reducing the total smoke release and CO production. It is worth noticing that ATH could react with isocyanate groups, which was confirmed through FTIR. As a result, the interaction between the core-shell particles and the polymer matrix was enhanced, which protected the cell structure of RPUF from destroying by EG particles. The improved flame-retardant performance of EG@ATH, together with their low-cost, easy fabrication and especially friendliness to the environment, make it prospective in applications for flame retardancy of RPUF.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000423245900029
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45553]
专题	中国科学院化学研究所
通讯作者	Wang, Feng; Yang, Mingshu; Zheng, Guoqiang
作者单位	1.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.China Acad Railway Sci, Railway Engn Res Inst, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yintao,Wang, Feng,Dong, Quanxiao,et al. Core-shell expandable graphite @ aluminum hydroxide as a flame-retardant for rigid polyurethane foams[J]. POLYMER DEGRADATION AND STABILITY,2017,146:267-276.
APA	Wang, Yintao.,Wang, Feng.,Dong, Quanxiao.,Xie, Mingchen.,Liu, Peng.,...&Zheng, Guoqiang.(2017).Core-shell expandable graphite @ aluminum hydroxide as a flame-retardant for rigid polyurethane foams.POLYMER DEGRADATION AND STABILITY,146,267-276.
MLA	Wang, Yintao,et al."Core-shell expandable graphite @ aluminum hydroxide as a flame-retardant for rigid polyurethane foams".POLYMER DEGRADATION AND STABILITY 146(2017):267-276.