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首页> 外文会议>Conference on X-Ray Investigations of Polymer Structures II 2-5 December 1999 Szczyrk, Poland >Plastic deformation of crystalline polymer blends studied by X-ray techniques
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Plastic deformation of crystalline polymer blends studied by X-ray techniques

机译：X射线技术研究结晶聚合物共混物的塑性变形

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Plastic deformation of several blends including PE/PS, PA6/PP-g-AA and iPP/HOCP, and resulting texture were studied using X-ray pole figures technique. The primary deformation mode chose for this study was plane-strain compression in a channel-die. Deformation in this mode is not accompanied by cavitation, which allows high straing deformation and helps to identify the deformation mechanisms active. It was found that the basic mechanisms of plastic deformation are crystallographic slips within lamellae supported by supplemented by plastic shear and flow of amorphous component (interlamellar sliding). The mechanism identified are basically the smae as those active in deformation of plain polymers. In pahse separated blends interrfaces between components do not cavitate and preserve their integrity in either uncompatibilized or compatibilized blends. The inclusions of the second component influence the plastic deformation of the crystalline matrix by local modification of the stress field in their surroundings. That modification depends on the ratio of compliances of the inclusions and the matrix at the temperature of deformation.
机译：使用X射线极图技术研究了几种共混物（包括PE / PS，PA6 / PP-g-AA和iPP / HOCP）的塑性变形以及产生的织构。本研究选择的主要变形模式是通道模中的平面应变压缩。这种模式下的变形不会伴有气穴现象，这会导致高应变变形，并有助于识别活动的变形机制。发现塑性变形的基本机理是由塑性剪切和无定形组分的流动（层间滑动）补充所支撑的片状晶体内部的晶体滑移。所确定的机理基本上是smae，其对普通聚合物的变形具有活性。在巴氏分离的共混物中，组分之间的界面不会空化并在不相容或相容的共混物中保持其完整性。第二组分的夹杂物通过局部改变其周围的应力场而影响晶体基质的塑性变形。该修改取决于变形温度下夹杂物和基体的柔量之比。

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