TAILORING THE TENSILE PROPERTIES OF OLEFIN BLOCK COPOLYMER ELASTOMER BY HIGH DENSITY POLYETHYLENE
文献类型：期刊论文
| 作者 | Kuang, Xiao1; Liu, Guo-ming1; Wen, Tao1; Zhang, Xiu-qin2; Dong, Xia1; Wang, Du-jin1 |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2013-05-20 |
| 期号 | 5页码:679-687 |
| 关键词 | Olefin Block Copolymer High Density Polyethylene Blends Crystallization Tensile Behavior |
| ISSN号 | 1000-3304 |
| DOI | 10.3724/SP.J.1105.2013.12423 |
| 英文摘要 | The effect of high density polyethylene (HDPE) on the crystallization and tensile behavior of the olefin block copolymer (OBC)-rich blends was examined. Morphological studies revealed that the two components were phase separated in the melt state. Partial miscibility between the two components came from the "phase mixing", which was attributed to the randomness of the block distribution produced by chain shuttling polymerization. Cocrystallization of HDPE and OBC was observed in slow cooling samples. Crystalline lamellae originating from the HDPE-rich phase passed through the OBC-rich phase and organized into spherulites in a space-filling manner. With increasing HDPE fraction, the modulus and tensile strength of the blends increased gradually. Meanwhile, high fracture strain and excellent strain recovery were retained. The stress-strain curves of the elastomeric blends could be nicely described by the Slip-link model. The crystalline part in blends provided the physical basis for "sliplinks",while the tightened topological entanglements served as crosslinks". The density of sliplinks and crosslinks increased with increasing HDPE content. The increased crystallinity was shown to be the reason for the increased sliplinks number. By analyzing changes of microstructure imparted by HDPE, the structure property correlation was nicely established. It was clearly demonstrated that HDPE could effectively tailor the tensile properties of OBC by simple blending approach. |
| 语种 | 英语 |
| WOS记录号 | WOS:000320297300014 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47069]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Kuang, Xiao |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Engn Plast, Inst Chem, Beijing 100190, Peoples R China 2.Beijing Inst Fash Technol, Beijing Key Lab Clothing Mat R&D & Assessment, Dept Mat Sci & Engn, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kuang, Xiao,Liu, Guo-ming,Wen, Tao,et al. TAILORING THE TENSILE PROPERTIES OF OLEFIN BLOCK COPOLYMER ELASTOMER BY HIGH DENSITY POLYETHYLENE[J]. ACTA POLYMERICA SINICA,2013(5):679-687. |
| APA | Kuang, Xiao,Liu, Guo-ming,Wen, Tao,Zhang, Xiu-qin,Dong, Xia,&Wang, Du-jin.(2013).TAILORING THE TENSILE PROPERTIES OF OLEFIN BLOCK COPOLYMER ELASTOMER BY HIGH DENSITY POLYETHYLENE.ACTA POLYMERICA SINICA(5),679-687. |
| MLA | Kuang, Xiao,et al."TAILORING THE TENSILE PROPERTIES OF OLEFIN BLOCK COPOLYMER ELASTOMER BY HIGH DENSITY POLYETHYLENE".ACTA POLYMERICA SINICA .5(2013):679-687. |
入库方式： OAI收割
来源：化学研究所
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