Brittle-ductile transition of polypropylene/ethyllene-propylene-diene monomer blends induced by size, temperature, and time

doi:10.1002/polb.20023

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	Brittle-ductile transition of polypropylene/ethyllene-propylene-diene monomer blends induced by size, temperature, and time
	Jiang, W ; Yu, DH ; An, LJ ; Jiang, BZ
刊名	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
	2004-04-15
卷号	42 期号:8 页码:1433-1440
关键词	Pp/epdm Blends Toughness Brittle-ductile Transition
ISSN号	0887-6266
DOI	10.1002/polb.20023
英文摘要	To study the brittle-ductile transition (BDT) of polypropylene (PP)/ethylene-propylene-diene monomer (EPDM) blends induced by size, temperature, and time, the toughness of the PP/EPDM blends was investigated over wide ranges of EPDM content, temperature, and strain rate. The toughness of the blends was determined from the tensile fracture energy of the side-edge notched samples. The concept of interparticle distance (ID) was introduced into this study to probe the size effect on the BDT of PP/EPDM blends, whereas the effect of time corresponded to that of strain rate. The BDT induced by size, temperature, and time was observed in the fracture energy versus ID, temperature, and strain rate. The critical BDT temperatures for various EPDM contents at different initial strain rates were obtained from these transitions. The critical interparticle distance (IDc) increased nonlinearly with increasing temperature, and when the initial strain rate was lower, the IDc was larger. Moreover, the variation of the reciprocal of the initial strain rate with the reciprocal of temperature followed different straight lines for various EPDM contents. These straight lines were with the same slope. Furthermore, a diagram at critical BDT points in three dimensions (ID, T, and initial strain rate) was given for the PP/EPDM blends. The brittle and ductile zones are clearly shown in this diagram. (C) 2004 Wiley Periodicals, Inc.
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000220547800009
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/81889]
专题	中国科学院化学研究所
通讯作者	Jiang, W
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Aalborg Univ, Dept Environm Engn, DK-9000 Aalborg, Denmark
推荐引用方式 GB/T 7714	Jiang, W,Yu, DH,An, LJ,et al. Brittle-ductile transition of polypropylene/ethyllene-propylene-diene monomer blends induced by size, temperature, and time[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2004,42(8):1433-1440.
APA	Jiang, W,Yu, DH,An, LJ,&Jiang, BZ.(2004).Brittle-ductile transition of polypropylene/ethyllene-propylene-diene monomer blends induced by size, temperature, and time.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,42(8),1433-1440.
MLA	Jiang, W,et al."Brittle-ductile transition of polypropylene/ethyllene-propylene-diene monomer blends induced by size, temperature, and time".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 42.8(2004):1433-1440.