Brittle-ductile transition of poly(butylene terephthalate) toughened with epoxidized EPDM rubber

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	Brittle-ductile transition of poly(butylene terephthalate) toughened with epoxidized EPDM rubber
	Huang, L ; Jiang, W ; An, LJ ; Jiang, SX
刊名	ACTA POLYMERICA SINICA
	2005-08-01
期号	4 页码:529-534
关键词	Epdm/pbt Blends Notch Izod Impact Brittle-ductile Transition
ISSN号	1000-3304
英文摘要	Epoxidized ethylene propylene diene (eEPDM) was prepared in the lab. Then it was used to toughen poly(butylene terephthalate) (PBT) by melt blending. For the blend with 24 wt% eEPDM content, the impact strength is 12 times of that of pure PBT. Moreover, the brittle-ductile transition could be found by increasing eEPDM content. at room temperature. However, for PBT/uEPDM (unepoxidized EPDM) blends, the impact strength remained briefly unchanged with increasing the rubber content. It was obtained that the critical interparticle distance (IDc) of the PBT/eEPDM systems is 0.49 mu m. Moreover, the addition of EPDM led to the decreasing of the brittle-ductile transition temperature (T-BD). of PBT/EPDM blends. The difference between the brittle-ductile transition temperatures of PBT/uEPDM and PBT/eEPDM blends increased considerably with increasing EPDM content. SEM photographs showed that dispersed eEPDM particle size was obviously smaller than that of uEPDM particle in PBT matrices. Moreover, the interparticle distance (ID) of the PBT/eEPDM blends was smaller than that of the PBT/uEPDM blends, which led to the occurrence of brittle-ductile transition of PBT/eEPDM blends at room temperature.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000231546500011
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/56977]
专题	中国科学院化学研究所
通讯作者	Huang, L
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Daqing Explorat & Dev Inst, Enhanced Oil Recovery Lab, Daqing 163712, Peoples R China
推荐引用方式 GB/T 7714	Huang, L,Jiang, W,An, LJ,et al. Brittle-ductile transition of poly(butylene terephthalate) toughened with epoxidized EPDM rubber[J]. ACTA POLYMERICA SINICA,2005(4):529-534.
APA	Huang, L,Jiang, W,An, LJ,&Jiang, SX.(2005).Brittle-ductile transition of poly(butylene terephthalate) toughened with epoxidized EPDM rubber.ACTA POLYMERICA SINICA(4),529-534.
MLA	Huang, L,et al."Brittle-ductile transition of poly(butylene terephthalate) toughened with epoxidized EPDM rubber".ACTA POLYMERICA SINICA .4(2005):529-534.