Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene

doi:10.1021/ma100303d

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	Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene
	Jiang, Zhiyong 1; Tang, Yujing 1; Rieger, Jens 2; Enderle, Hans-Friedrich 3; Lilge, Dieter 3; Roth, Stephan V.4; Gehrke, Rainer 4; Heckmann, Walter 2; Men, Yongfeng 1
刊名	MACROMOLECULES
	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
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000277649500040
内容类型	期刊论文
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.