Abstract
An investigation of the hot drawing of high molecular weight polyethylene fibres containing a substantial amount of solvent, and of fibres with a porous structure that were dried after solution spinning, was conducted. It was found that the tensile strength as well as the Young's modulus of the polyethylene fibres were linearly related to the applied stress up to values of 0.3 GPa. Drawing stresses exceeding 0.3 GPa could produce polyethylene fibres with a tensile strength of 3.7 GPa and a Young's modulus of 120 GPa. The ultimate mechanical properties appeared to be affected by the nature of the solvent, the polymer concentration and the spinning temperature. Chain extension in the hot drawing and the ultimate draw ratio depended substantially on the number of intermolecular entanglements initially present in the fibre.
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Kalb, B., Pennings, A.J. Maximum strength and drawing mechanism of hot drawn high molecular weight polyethylene. J Mater Sci 15, 2584–2590 (1980). https://doi.org/10.1007/BF00550763
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DOI: https://doi.org/10.1007/BF00550763