| Two-step cavitation in semi-crystalline polymer during stretching at temperature below glass transition | |
| Chen, Ran; Lu, Ying; Zhao, Jiayi; Jiang, Zhiyong; Men, Yongfeng | |
| 刊名 | Journal of polymer science part b-polymer physics
 |
| 2016-10-01 | |
| 卷号 | 54期号:19页码:2007-2014 |
| 关键词 | Cavitation Poly(4-methyl-1-pentene) Deformation Usaxs Fitting |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.24108 |
| 通讯作者 | Men, yongfeng(men@ciac.ac.cn) |
| 英文摘要 | Cavitation behavior in poly(4-methyl-1-pentene) upon stretching below glass transition temperature was investigated by in situ ultra-small angle x-ray scattering technique. strong stress-whitening was observed indicating an extensive occurrence of cavitation in the material during tensile deformation below tg. the x-ray scattering patterns suggest oriented disc-shaped cavities with normal mostly parallel to the stretching direction occurred. structural parameters of such cavities such as thickness, radius, and tilting angle of the normal of the disc with respect to the stretching direction have been successfully calculated using a model fitting procedure. the results exhibited a two-step process of cavitation that small amount of large cavities appeared first and then small cavities were triggered extensively in the samples at larger strains. this two-step cavitation phenomenon can be weakened after the quenched sample was annealed or the sample was prepared by slow cooling. this peculiar two-step cavitation process can be understood as a result of high frozen in internal stress in quenched sample that led to local failure of the materials. (c) 2016 wiley periodicals, inc. j. polym. sci., part b: polym. phys. 2016, 54, 2007-2014 |
| WOS关键词 | X-RAY-SCATTERING ; HIGH-DENSITY POLYETHYLENE ; IN-SITU SAXS ; TENSILE DEFORMATION ; SMALL-ANGLE ; ISOTACTIC POLYPROPYLENE ; ELEVATED-TEMPERATURES ; PLASTIC-DEFORMATION ; CRYSTALLINE POLYMERS ; BETA-POLYPROPYLENE |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL |
| WOS记录号 | WOS:000383289000012 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2376180 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Men, Yongfeng |
| 作者单位 | Univ Chinese Acad Sci, Changchun Inst Appl Chem, Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Renmin St 5625, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ran,Lu, Ying,Zhao, Jiayi,et al. Two-step cavitation in semi-crystalline polymer during stretching at temperature below glass transition[J]. Journal of polymer science part b-polymer physics,2016,54(19):2007-2014. |
| APA | Chen, Ran,Lu, Ying,Zhao, Jiayi,Jiang, Zhiyong,&Men, Yongfeng.(2016).Two-step cavitation in semi-crystalline polymer during stretching at temperature below glass transition.Journal of polymer science part b-polymer physics,54(19),2007-2014. |
| MLA | Chen, Ran,et al."Two-step cavitation in semi-crystalline polymer during stretching at temperature below glass transition".Journal of polymer science part b-polymer physics 54.19(2016):2007-2014. |
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