Controlling factors for the occurrence of heteroepitaxy of polyethylene on highly oriented isotactic polypropylene

	Controlling factors for the occurrence of heteroepitaxy of polyethylene on highly oriented isotactic polypropylene
	Yan SK ; Yang DC ; Petermann J
刊名	polymer
	1998
卷号	39 期号:19 页码:4569-4578
关键词	EPITAXIAL CRYSTALLIZATION FILMS HDPE POLYMERS IPP
ISSN号	0032-3861
通讯作者	yang dc
中文摘要	the controlling factors for the epitaxial crystallization of high-density polyethylene (hdpe) on highly oriented isotactic polypropylene (ipp) substrates have been studied in detail by means of transmission electron microscopy and electron diffraction. the results obtained in this work indicate that the crystallization process must be considered in the investigation of epitaxial growth of polymers on polymeric substrates, because of the unique morphological and crystallization characteristics of polymers. crystallization rate has an important effect on the epitaxial crystallization of polymers. higher rates result in the formation of thicker epitaxial layers. isothermal crystallization temperature is another factor affecting epitaxial growth of polymers. lower temperatures are favorable to epitaxial crystallization of polymers. there exists a critical epitaxial temperature at given experimental conditions, above which no epitaxial growth occurs at all. the influence of crystal dimensions of both the substrates and the deposited polymers on epitaxial growth confirms that secondary nucleation is an important controlling factor for the occurrence of epitaxial crystallization in polymers. the requirement satisfying the secondary nucleation criterion is that the substrate crystal dimension in the matching direction must be greater than the crystal thickness of the deposited polymer. once the requirement of the secondary nucleation is satisfied, subsequent epitaxial growth is based on the lamellar growth habit of the deposited polymer itself. (c) 1998 published by elsevier science ltd. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000074740500012
公开日期	2010-11-04
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/22863]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Yan SK,Yang DC,Petermann J. Controlling factors for the occurrence of heteroepitaxy of polyethylene on highly oriented isotactic polypropylene[J]. polymer,1998,39(19):4569-4578.
APA	Yan SK,Yang DC,&Petermann J.(1998).Controlling factors for the occurrence of heteroepitaxy of polyethylene on highly oriented isotactic polypropylene.polymer,39(19),4569-4578.
MLA	Yan SK,et al."Controlling factors for the occurrence of heteroepitaxy of polyethylene on highly oriented isotactic polypropylene".polymer 39.19(1998):4569-4578.