Amorphous Phase Properties Of Oriented Polyethylene Solids

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Amorphous Phase Properties Of Oriented Polyethylene Solids

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dc.contributor.author Zahran, R. R en_US
dc.date.accessioned 2009-11-25T13:07:23Z
dc.date.available 2009-11-25T13:07:23Z
dc.date.issued 1993 en_US
dc.identifier.citation Engineering Journal of Qatar University, 1993, Vol. 6, Pages 13-28. en_US
dc.identifier.uri http://hdl.handle.net/10576/8029
dc.description.abstract Solid-state deformation of polyethylene results in a preferential orientation of both crystalline and amorphous regions. Usually, one major problem in the prediction of the mechanical and thermal expansion properties of anisotropic polyethylene lies in determining values for the amorphous phase properties and, particularly, at a given level of solid-state deformation. This paper outlines simple procedures for determining the two-dimensional amorphous orientation function and values for the mechanical and thermal expansion properties of the oriented amorphous phase. Mathematical expressions for determining the tensile and shear moduli, Poisson ratio and thermal strain of the amorphous phase for anisotropic polyethylene at any level of orientation are defined. Comparison between the predicted amorphous phase tensile modulus and the experimental measurements yields an agreement within 30%. en_US
dc.language.iso en en_US
dc.publisher Qatar University en_US
dc.subject Engineering: Research & Technology en_US
dc.title Amorphous Phase Properties Of Oriented Polyethylene Solids en_US
dc.type Article en_US
dc.identifier.pagination 13-28 en_US
dc.identifier.volume 6 en_US

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