Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene
文献类型：期刊论文
| 作者 | Jiang, Zhiyong1; Tang, Yujing1; Rieger, Jens2; Enderle, Hans-Friedrich3; Lilge, Dieter3; Roth, Stephan V.4; Gehrke, Rainer4; Heckmann, Walter2; Men, Yongfeng1 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2010-05-25 |
| 卷号 | 43期号:10页码:4727-4732 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma100303d |
| 英文摘要 | The structural evolution of tensile-deformed high-density polyethylene (HDPE) at the lamellar level was investigated as a function of strain using a scanning synchrotron small-angle X-ray scattering technique. Intralamellar crystalline block slips were activated at small deformations, whereas stress-induced fragmentation and recrystallization process proceeded at a larger strain, yielding lamellae with polymeric chains preferentially oriented along the stretching direction. The critical strains marking the onset of the destruction of original crystallites and the fibril formation for isothermally crystallized HDPE were at about 0.4 and 1.2, respectively. In the case of a quenched sample, the critical strain was 0.4. In the isothermally crystallized sample two critical values were observed that could be traced back to the existence of two populations of lamellar stacks with significantly different interlamellar amorphous phase thicknesses. This resulted in distinct mobilities of the amorphous domains and, therefore, different moduli or the entangled amorphous networks. Consequently, the strain required to produce the critical network stress, which gave rise to a fragmentation of the crystalline blocks, was different for each stack of crystalline lamellae. |
| 语种 | 英语 |
| WOS记录号 | WOS:000277649500040 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/69143]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Men, Yongfeng |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.BASF SE, Polymer Res, D-67056 Ludwigshafen, Germany 3.Basell Polyolefine GmbH, R&D, D-65926 Frankfurt, Germany 4.DESY, HASYLAB, D-22607 Hamburg, Germany |
| 推荐引用方式 GB/T 7714 | Jiang, Zhiyong,Tang, Yujing,Rieger, Jens,et al. Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene[J]. MACROMOLECULES,2010,43(10):4727-4732. |
| APA | Jiang, Zhiyong.,Tang, Yujing.,Rieger, Jens.,Enderle, Hans-Friedrich.,Lilge, Dieter.,...&Men, Yongfeng.(2010).Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene.MACROMOLECULES,43(10),4727-4732. |
| MLA | Jiang, Zhiyong,et al."Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene".MACROMOLECULES 43.10(2010):4727-4732. |
入库方式： OAI收割
来源：化学研究所
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