A new shape memory epoxy resin with excellent comprehensive properties

	A new shape memory epoxy resin with excellent comprehensive properties
	Wu, Xiao 1,2; Yang, Xin 1; Zhang, Ying 1; Huang, Wei 1
刊名	JOURNAL OF MATERIALS SCIENCE
	2016-03-01
卷号	51 期号:6 页码:3231-3240
英文摘要	In this article, a new type of epoxy resin, diglycidyl ether of 9,9-bis [4-(2-hydroxyethoxy) phenyl] fluorine (DGEBEF) was successfully synthesized and characterized by H-1-NMR, FTIR, and FDMS analyses. The kinetics of DGEBEF cured with 4,4'-diamino diphenyl sulfone (DDS) was investigated by nonisothermal differential scanning calorimetry and thermal stability of the cured resin was characterized by thermogravimetric analysis. The DGEBEF/DDS system exhibits excellent processability, mechanical strength, and toughness, high thermal stability and low water absorption. Glass transition temperature (T (g)) of the cured epoxy was 170 A degrees C determined by DMA. The ratio of the storage modulus of the cured resin at glassy state to that at rubbery state was as large as about 400, indicating its potential applications as shape memory material. The excellent shape memory properties were confirmed by fold-deploy shape memory and tensile-shrinkage tests. The shape fixed ratio was 99 %. and the shape recovery ratio was nearly 100 % after 30-s recovery at 185 A degrees C in the fold-deploy shape memory test. In the tensile-shrinkage test, the recovery stress is 2.5 MPa at the strain of 25 % and temperature of 185 A degrees C, and both the shape fixed and shape recovery ratios maintained at about 99 % after six test cycles.
收录类别	SCI
语种	英语
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/29717]
专题	化学研究所_高技术材料实验室
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xiao,Yang, Xin,Zhang, Ying,et al. A new shape memory epoxy resin with excellent comprehensive properties[J]. JOURNAL OF MATERIALS SCIENCE,2016,51(6):3231-3240.
APA	Wu, Xiao,Yang, Xin,Zhang, Ying,&Huang, Wei.(2016).A new shape memory epoxy resin with excellent comprehensive properties.JOURNAL OF MATERIALS SCIENCE,51(6),3231-3240.
MLA	Wu, Xiao,et al."A new shape memory epoxy resin with excellent comprehensive properties".JOURNAL OF MATERIALS SCIENCE 51.6(2016):3231-3240.