Epoxy Toughening Using Low Viscosity Liquid Diglycidyl Ether of Ethoxylated Bisphenol-A

doi:10.1002/app.34677

CORC > 化学研究所 > 中国科学院化学研究所

	Epoxy Toughening Using Low Viscosity Liquid Diglycidyl Ether of Ethoxylated Bisphenol-A
	Yang, Xin 1,2; Huang, Wei 1; Yu, Yunzhao 1
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2012-02-15
卷号	123 期号:4 页码:1913-1921
关键词	Toughening Epoxy Resin Ethoxylated Impact Strength
ISSN号	0021-8995
DOI	10.1002/app.34677
英文摘要	Two new epoxy resins, diglycidyl ether of ethoxylated bisphenol-A (BPA) with two and six oxyethylene units (DGEBAEO-2 and DGEBAEO-6) were synthesized and characterized. DGEBAEO-6 was used to toughen the conventional epoxy resin diglycidyl ether of BPA (DGEBA). The blends of DGEBA with different amounts of DGEBAEO-6 were cured by 4,4'-diamino diphenylmethane (DDM), and their thermal and mechanical properties were examined. The DSC and DMA results presented that DGEBA/DGEBAEO-6 blends exhibited a homogenous phase, and the glass transition temperature of the blends was inversely proportional to the content of DGEBAEO-6. The impact strength of the cured blends was directly proportional to the content of DGEBAEO-6, and reached five times higher than that of the neat DGEBA when 50 wt % DGEBAEO-6 was used; the same impact strength was achieved for DDM-cured DGEBAEO-2. The viscosities of the blends decreased with increasing the DGEBAEO-6 content, whereas the tensile and flexural strength and the thermal stabilities were not obviously affected. Scanning electron microscopic results confirmed that the plastic deformation inducing by the incorporated flexible oxyethylene units was responsible for the toughness improvement. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 1913-1921, 2012
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000297932300001
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47333]
专题	中国科学院化学研究所
通讯作者	Huang, Wei
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xin,Huang, Wei,Yu, Yunzhao. Epoxy Toughening Using Low Viscosity Liquid Diglycidyl Ether of Ethoxylated Bisphenol-A[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2012,123(4):1913-1921.
APA	Yang, Xin,Huang, Wei,&Yu, Yunzhao.(2012).Epoxy Toughening Using Low Viscosity Liquid Diglycidyl Ether of Ethoxylated Bisphenol-A.JOURNAL OF APPLIED POLYMER SCIENCE,123(4),1913-1921.
MLA	Yang, Xin,et al."Epoxy Toughening Using Low Viscosity Liquid Diglycidyl Ether of Ethoxylated Bisphenol-A".JOURNAL OF APPLIED POLYMER SCIENCE 123.4(2012):1913-1921.