Flow-induced epitaxial growth of high density polyethylene in its blends with low crystallizable polypropylene copolymer
文献类型：期刊论文
| 作者 | Su, Run1; Li, Zhen1; Bai, Hongwei1; Wang, Ke1; Zhang, Qin1; Fu, Qiang1; Zhang, Zhijie2; Men, Yongfeng2 |
| 刊名 | POLYMER
 |
| 出版日期 | 2011-07-20 |
| 卷号 | 52期号:16页码:3655-3660 |
| ISSN号 | 0032-3861 |
| 关键词 | Hdpe Crystallization Sequence Epitaxy |
| DOI | 10.1016/j.polymer.2011.06.016 |
| 英文摘要 | In 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. |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000293040600019 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/73447]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fu, Qiang |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：化学研究所
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