Effect of cyclophosphazene nucleated hyperbranched polyester on flame retardancy and mechanical properties of epoxy resins

doi:10.1002/app.52404

	Effect of cyclophosphazene nucleated hyperbranched polyester on flame retardancy and mechanical properties of epoxy resins
	Yu, Hailong; Tian, Li; Zhu, Yingxue; Zhu, Anjun; Mao, Xin; Yang, Baoping; Guo, Junhong; Mu, Bo; Cui, Jinfeng
	2022-07-05
发表期刊	JOURNAL OF APPLIED POLYMER SCIENCE
ISSN	0021-8995
卷号	139 期号:25
摘要	Hexakis(4-hydroxyphenoxy) cyclotriphosphazene (PN-OH) was synthesized by a nucleophilic substitution and aldehyde reduction reaction of hexachlorocyclotriphosphazene with p-hydroxybenzaldehyde, and then cyclophosphazene nucleated hyperbranched polyesters (HBP) were prepared via a one-pot esterification reaction of PN-OH and dimethylolpropionic acid. The chemical structure and molecular weight distribution of HBP were confirmed by H-1-NMR, FTIR, and GPC. The HBP was applied to epoxy resin (EP) to improve its mechanical properties and flame retardancy. The cone calorimeter test revealed that the maximum heat release rate, total heat release and total smoke release of HBP/EP composites were reduced by 35.9%, 21.6%, and 27.3%, respectively, when 7 wt% HBP was added to the EP matrix compared with pure EP. Meanwhile, when 7 wt% HBP was added to EP composites, the limiting oxygen index value was increased from 24.6% to 27.7% and the UL-94 test reached a V-1 rating. More importantly, the thermal stability and mechanical properties of the HBP/EP composites were enhanced. The flame retardant mechanism analysis showed that HBP primarily acted as a flame retardant in the condensed phase. These results indicate that the HBP/EP composites have exceptional overall performance and a broad range of applications in critical fields.
关键词	cyclophosphazene nucleated epoxy resins flame retardancy hyperbranched polyester mechanical properties
DOI	10.1002/app.52404
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000771548900001
出版者	WILEY
EI入藏号	20221311838435
EI主题词	Epoxy resins
EI分类号	802.2 Chemical Reactions ; 815.1.1 Organic Polymers ; 931.3 Atomic and Molecular Physics
来源库	WOS
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158091
专题	实验室建设与管理处石油化工学院图书馆
通讯作者	Cui, Jinfeng
作者单位	Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Yu, Hailong,Tian, Li,Zhu, Yingxue,et al. Effect of cyclophosphazene nucleated hyperbranched polyester on flame retardancy and mechanical properties of epoxy resins[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2022,139(25).
APA	Yu, Hailong.,Tian, Li.,Zhu, Yingxue.,Zhu, Anjun.,Mao, Xin.,...&Cui, Jinfeng.(2022).Effect of cyclophosphazene nucleated hyperbranched polyester on flame retardancy and mechanical properties of epoxy resins.JOURNAL OF APPLIED POLYMER SCIENCE,139(25).
MLA	Yu, Hailong,et al."Effect of cyclophosphazene nucleated hyperbranched polyester on flame retardancy and mechanical properties of epoxy resins".JOURNAL OF APPLIED POLYMER SCIENCE 139.25(2022).