Unusual rheological behaviors of linear PE and PE/kaolin composite

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	Unusual rheological behaviors of linear PE and PE/kaolin composite
	Wu, QY ; Wang, X ; Gao, WP ; Hu, YL ; Qi, ZN
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2001-06-20
卷号	80 期号:12 页码:2154-2161
关键词	Linear Pe Kaolin Composite Polymerization Filling Unusual Rheological Behavior
ISSN号	0021-8995
英文摘要	The unusual flow behaviors of linear PE melts are caused by high molecular weight, tight entanglements of molecular chains, and strong adsorption of the melt at the capillary wall. Especially, the extreme change of interface adsorption is followed by an unusual flow, and at the molecular level, the dynamic variety of entanglement and disentanglement between the adsorption chain near the wall and the nonadsorption chain is the cause of the extrusion pressure vibration. Ultrahigh molecular weight polyethylene (UHMWPE)/kaolin composites prepared by polymerization filling could be smoothly extruded through the capillary. Also, with increase of the kaolin content, the apparent viscosity of the composite decreased and the processability was improved. Under slip boundary conditions, the real shear rate and shear stress of the melt near the capillary wall were reduced. The viscosity descent (desorption) and the deformation energy decrease of the melt near the wall were the important preconditions to gain a steady flow in a second glossy zone. (C) 2001 John Wiley & Sons, Inc.
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000167862400005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/77581]
专题	中国科学院化学研究所
通讯作者	Wu, QY
作者单位	1.Qingdao Inst Chem Technol, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Engn Plast, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wu, QY,Wang, X,Gao, WP,et al. Unusual rheological behaviors of linear PE and PE/kaolin composite[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2001,80(12):2154-2161.
APA	Wu, QY,Wang, X,Gao, WP,Hu, YL,&Qi, ZN.(2001).Unusual rheological behaviors of linear PE and PE/kaolin composite.JOURNAL OF APPLIED POLYMER SCIENCE,80(12),2154-2161.
MLA	Wu, QY,et al."Unusual rheological behaviors of linear PE and PE/kaolin composite".JOURNAL OF APPLIED POLYMER SCIENCE 80.12(2001):2154-2161.