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	Preparation and cryogenic mechanical properties of epoxy resins modified by poly(ethersulfone)
	Yang, Guo1,2; Zheng, Bin1,2; Yang, Jiao-Ping1,2; Xu, Guan-Shui3; Fu, Shao-Yun1
刊名	Journal of polymer science part a-polymer chemistry
	2008-01-15
卷号	46期号:2页码:612-624
关键词	Cryogenic mechanical properties Epoxy resin Glass transition temperature Poly(ethersulfone)
ISSN号	0887-624X
DOI	10.1002/pola.22409d
通讯作者	Fu, shao-yun(syfu@mail.ipc.ac.cn)
英文摘要	A thermoplastic, poly(ethersulfone) (pes) was used to modify a bisphenol-f based epoxy resin cured with an aromatic diamine. the initial mixtures before curing, prepared by melt mixing, were homogeneous. scanning electron microscopy (sem) micrographs of solvent-etched fracture surfaces of the cured blends indicated that phase separation occurred after curing. the cryogenic mechanical behaviors of the epoxy resins were studied in terms of tensile properties and charpy impact strength at cryogenic temperature (77 k) and compared to their corresponding behaviors at room temperature (rt). the addition of pes generally improved the tensile strength, elongation at break, and impact strength at both rt and 77 k except the rt tensile strength at 25 phr pes content. it was interesting to observe that and the maximum values of the tensile strength, elongation at break, and impact strength occurred at 20 phr pes content where a co-continuous phase formed. young's modulus decreased slightly with the increase of the pes content. moreover, the tensile strength and young's modulus at 77 k were higher than those at rt at the same composition, whereas the elongation at break and impact strength showed the opposite results. finally, the differential scanning calorimetry analysis showed that the glass transition temperature (t-g) was enhanced by the addition of pes. (c) 2007 wiley periodicals, inc.
WOS关键词	RUBBER-TOUGHENED EPOXY ; CROSS-LINK DENSITY ; PHASE-SEPARATION ; FRACTURE-BEHAVIOR ; ETHER KETONE) ; BLENDS ; MISCIBILITY ; NANOCOMPOSITES ; DEFORMATION ; POLYETHERSULFONE
WOS研究方向	Polymer Science
WOS类目	Polymer Science
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000252473000020
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2393229
专题	中国科学院大学
通讯作者	Fu, Shao-Yun
作者单位	1.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA
推荐引用方式 GB/T 7714	Yang, Guo,Zheng, Bin,Yang, Jiao-Ping,et al. Preparation and cryogenic mechanical properties of epoxy resins modified by poly(ethersulfone)[J]. Journal of polymer science part a-polymer chemistry,2008,46(2):612-624.
APA	Yang, Guo,Zheng, Bin,Yang, Jiao-Ping,Xu, Guan-Shui,&Fu, Shao-Yun.(2008).Preparation and cryogenic mechanical properties of epoxy resins modified by poly(ethersulfone).Journal of polymer science part a-polymer chemistry,46(2),612-624.
MLA	Yang, Guo,et al."Preparation and cryogenic mechanical properties of epoxy resins modified by poly(ethersulfone)".Journal of polymer science part a-polymer chemistry 46.2(2008):612-624.

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