The Plastic Deformation Characteristics of Crystalline Polymer Materials via Rolling Process

Jian Hui Qiu; Takuya Murata; Kenji Takahashi; Xue Li Wu

doi:10.4028/www.scientific.net/AMR.391-392.585

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 391-392The Plastic Deformation Characteristics of...

The Plastic Deformation Characteristics of Crystalline Polymer Materials via Rolling Process

Abstract:

The present work investigated the variation of internal structure, molecular orientation, crystallinity and mechanical characteristics of polypropylene(PP) after rolling process. The materials plate became narrow when rolled from entrance to exit, and the internal crystalline gradually deformed and at last destroyed. Plastic deformation was discovered along the rolling direction. In this direction, the crystallinity and vickers hardness were decreased, and molecular orientation was increased. Moreover, molecular orientation had a sharp increase at the second half part of rolling sample. The tensile stress of rolled samples increased by 80% parallel to rolling direction and decreased by 22% perpendicular to rolling direction.

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Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

585-589

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.585

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Online since:

December 2011

Authors:

Jian Hui Qiu, Takuya Murata, Kenji Takahashi, Xue Li Wu

Keywords:

Mechanical Characteristic, Molecular Orientation, Plastic Deformation, Polymer Material, Rolling Process

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