Crystallization kinetics and morphology of high impact polypropylene

CORC > 化学研究所 > 中国科学院化学研究所

	Crystallization kinetics and morphology of high impact polypropylene
	Liu Xiu-Xia ; Chen Yong ; Chen Ye ; Zhang Wan-Xi ; Chen Wei ; Yang De-Cai
刊名	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
	2006-12-10
卷号	27 期号:12 页码:2430-2434
关键词	High Impact Polypropylene Crystallization Kinetics Morphology
ISSN号	0251-0790
英文摘要	Crystallization kinetics and morphology of high impact polypropylene ( HIPP) and polypropylene homopolymer(iPP) were studied comparatively by differential scanning calorimetry (DSC), polarized optical microscopy(PLM) and field-emission scanning electron microscopy (FESEM) techniques. The crystallization and melting temperatures of HIPP are lower than those of iPP. The results of isothermal crystallization kinetics study indicates that the crystallization half-time(t(1/2)) of HIPP is longer, while its activation energy(Delta E) and chain folding surface free energy(sigma(e)) are higher, compared with those of iPP. These results show the partial compatibility between the copolymeric components and the matrix of HIPP, which hinders the crystallization of the matrix. The PLM and FESEM images of HIPP reveal that there are uniformly dispersed rubbery particles (ca. 1-2 mu m in diameter) with a core-shell structure in the matrix of HIPP. The uniform dispersion, strong interfacial adhesion and core-shell morphology of the rubbery phase in HIPP matrix are the key factors for the superior toughness-rigidity balance of this material.
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000242962700046
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/58771]
专题	中国科学院化学研究所
通讯作者	Yang De-Cai
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Jilin Univ, Mat Sci & Technol Coll, Changchun 130025, Peoples R China 3.Beijing Res Inst Chem Ind, SINOPEC, Beijing 100013, Peoples R China
推荐引用方式 GB/T 7714	Liu Xiu-Xia,Chen Yong,Chen Ye,et al. Crystallization kinetics and morphology of high impact polypropylene[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2006,27(12):2430-2434.
APA	Liu Xiu-Xia,Chen Yong,Chen Ye,Zhang Wan-Xi,Chen Wei,&Yang De-Cai.(2006).Crystallization kinetics and morphology of high impact polypropylene.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,27(12),2430-2434.
MLA	Liu Xiu-Xia,et al."Crystallization kinetics and morphology of high impact polypropylene".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 27.12(2006):2430-2434.