Time resolved simultaneous small- and wide-angle X-ray scattering during polyethylene deformation .2. Cold drawing of linear polyethylene
Time resolved simultaneous small- and wide-angle X-ray scattering during polyethylene deformation .2. Cold drawing of linear polyethylene
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DOI：
10.1016/s0032-3861(97)00226-7
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发表时间：
1998-01-01
期刊：
影响因子：
4.6
通讯作者：
Ryan, AJ
中科院分区：
文献类型：
--
作者：
Butler, MF;Donald, AM;Ryan, AJ
使用变形过程中同时小角度和广角 X 射线散射技术研究了一系列未取向线性聚乙烯的冷拉伸行为。研究了分子量和热历史的影响。人们发现这两个变量的作用非常重要，因为通过改变结晶度百分比，它们会影响层间和层内变形的相对量。研究发现，控制负载延伸曲线不同区域的微机械变形过程与冷拉乙烯-α-烯烃共聚物相同，这证明了所有类型的非取向聚乙烯 PE 之间的基本相似性。 (C) 1997 爱思唯尔科学有限公司。
The cold drawing behaviour of a range of unoriented linear polyethylenes was investigated using the technique of simultaneous small-and wide-angle X-ray scattering during deformation. The influences of molecular weight and thermal history were studied. The role of both variables was found to be highly important since by altering the percentage crystallinity they influenced the relative amounts of inter-and intra-lamellar deformation. The micromechanical deformation processes governing the different regions of the load-extension curve were found to be the same as for cold-drawn ethylene-alpha-olefin copolymers, demonstrating the fundamental similarity between all types of unoriented polyethylene PE. (C) 1997 Elsevier Science Ltd.