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

	Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene
	Jiang ZY ; Tang YJ ; Rieger J ; Enderle HF ; Lilge D ; Roth SV ; Gehrke R ; Heckmann W ; Men YF
刊名	macromolecules
	2010
卷号	43 期号:10 页码:4727-4732
关键词	X-RAY-SCATTERING PLASTICALLY DEFORMED POLYETHYLENE PARTIALLY CRYSTALLINE POLYMERS PLANE-STRAIN COMPRESSION SMALL-ANGLE LINEAR POLYETHYLENE SEMICRYSTALLINE POLYMERS ORIENTED POLYETHYLENE STRUCTURAL EVOLUTION UNIAXIAL DEFORMATION
ISSN号	0024-9297
通讯作者	men yf
中文摘要	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.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000277649500040
公开日期	2012-06-06
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/43724]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Jiang ZY,Tang YJ,Rieger J,et al. Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene[J]. macromolecules,2010,43(10):4727-4732.
APA	Jiang ZY.,Tang YJ.,Rieger J.,Enderle HF.,Lilge D.,...&Men YF.(2010).Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene.macromolecules,43(10),4727-4732.
MLA	Jiang ZY,et al."Two Lamellar to Fibrillar Transitions in the Tensile Deformation of High-Density Polyethylene".macromolecules 43.10(2010):4727-4732.