中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The beta-crystalline form of isotactic polypropylene in blends of isotactic polypropylene and polyamide-6/clay nanocomposites

文献类型:期刊论文

作者Feng, M; Gong, FL; Zhao, CG; Chen, GM; Zhang, SM; Yang, MS; Han, CC
刊名JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
出版日期2004-09-15
卷号42期号:18页码:3428-3438
关键词Blends Clay Crystalline Form Isotactic Polypropylene Nanocomposites Polyamide-6
ISSN号0887-6266
DOI10.1002/polb.20214
英文摘要Blends of isotactic polypropylene and polyamide-6/clay nanocomposites (iPP/NPA6) were prepared with an internal batch mixer. A high content of the beta-crystalline form of isotactic polypropylene (beta-iPP) was observed in the injection-molded samples of the iPP/NPA6 blends, whereas the content of beta-iPP in the iPP/PA6 blends and the iPP/clay composite was low and similar to that of neat iPP. Quiescent melt crystallization was studied by means of wide-angle X-ray diffraction, differential scanning calorimetry, and polarized optical microscopy. We found that the significant beta-iPP is not formed during quiescent melt crystallization regardless of whether the sample used was the iPP/NPA6 blend or an NPA6 fiber/iPP composite. Further characterization of the injection-molded iPP/NPA6 revealed a shear-induced skin-core distribution of beta-iPP and the formation of beta-iPP in the iPP/NPA6 blends is related to the shear flow field during cavity-filling. In the presence of clay, the deformation ability of the NPA6 domain is decreased, as evidenced by rheological and morphological studies. It is reasonable that the enhanced relative shear, caused by low deformability of the NPA6 domain in the iPP matrix, is responsible for beta-iPP formation in the iPP/NPA6 blends. (C) 2004 Wiley Periodicals, Inc.
语种英语
WOS记录号WOS:000223691800012
出版者JOHN WILEY & SONS INC
源URL[http://ir.iccas.ac.cn/handle/121111/55807]  
专题中国科学院化学研究所
通讯作者Yang, MS
作者单位1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Key Lab Engn Plast,Chinese Acad Sci, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714
Feng, M,Gong, FL,Zhao, CG,et al. The beta-crystalline form of isotactic polypropylene in blends of isotactic polypropylene and polyamide-6/clay nanocomposites[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2004,42(18):3428-3438.
APA Feng, M.,Gong, FL.,Zhao, CG.,Chen, GM.,Zhang, SM.,...&Han, CC.(2004).The beta-crystalline form of isotactic polypropylene in blends of isotactic polypropylene and polyamide-6/clay nanocomposites.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,42(18),3428-3438.
MLA Feng, M,et al."The beta-crystalline form of isotactic polypropylene in blends of isotactic polypropylene and polyamide-6/clay nanocomposites".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 42.18(2004):3428-3438.

入库方式: OAI收割

来源:化学研究所

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