ICCAS OpenIR
Flow-induced epitaxial growth of high density polyethylene in its blends with low crystallizable polypropylene copolymer
Su, Run1; Li, Zhen1; Bai, Hongwei1; Wang, Ke1; Zhang, Qin1; Fu, Qiang1; Zhang, Zhijie2; Men, Yongfeng2
2011-07-20
Source PublicationPOLYMER
ISSN0032-3861
Volume52Issue:16Pages:3655-3660
AbstractIn this work, we investigated the epitaxial crystallization and its determinant factor in the blends of high density polyethylene (HDPE) and a low crystallizable propylene-ethylene random copolymer (PPR) during injection molding. For PPR dominated blend (blended with 30 wt.% HDPE), epitaxial growth of HDPE on the PPR crystals can be achieved, as demonstrated by two-dimensional wide-angle X-ray diffraction and small-angle X-ray scattering measurements, though the crystallization of PPR was far behind that of HDPE component under quiescent conditions. In-situ shear infrared experiments indicated that PPR crystallized in advance mainly due to larger crystallization window and flow-induced crystallization acceleration. As for the blend with 70 wt.% HDPE, however, one could not observe epitaxy. Shear-induced crystallization of HDPE hindered its epitaxial growth. Once the formation of shish-kebab of HDPE was activated, the epitaxial growth would be suppressed to a large extent. (C) 2011 Elsevier Ltd. All rights reserved.
KeywordHdpe Crystallization Sequence Epitaxy
DOI10.1016/j.polymer.2011.06.016
Indexed BySCI
Language英语
WOS IDWOS:000293040600019
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73448
Collection中国科学院化学研究所
Corresponding AuthorFu, Qiang
Affiliation1.Sichuan Univ, Dept Polymer Sci & Mat, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Su, Run,Li, Zhen,Bai, Hongwei,et al. Flow-induced epitaxial growth of high density polyethylene in its blends with low crystallizable polypropylene copolymer[J]. POLYMER,2011,52(16):3655-3660.
APA Su, Run.,Li, Zhen.,Bai, Hongwei.,Wang, Ke.,Zhang, Qin.,...&Men, Yongfeng.(2011).Flow-induced epitaxial growth of high density polyethylene in its blends with low crystallizable polypropylene copolymer.POLYMER,52(16),3655-3660.
MLA Su, Run,et al."Flow-induced epitaxial growth of high density polyethylene in its blends with low crystallizable polypropylene copolymer".POLYMER 52.16(2011):3655-3660.
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