Study on Modification of Polymer Properties by the Cold Drawing Process - Soft

Soft > Vol.4 No.1, March 2015

Soft

Volume 4, Issue 1 (March 2015)

ISSN Print: 2327-0799 ISSN Online: 2327-0802

Citations

Study on Modification of Polymer Properties by the Cold Drawing Process ()

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DOI: 10.4236/soft.2015.41001 6,085 Downloads 7,567 Views Citations

Author(s)

Wing-Fu Lai^*

Affiliation(s)

Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China.

ABSTRACT

Polymers have a wide diversity of applications, ranging from therapeutics delivery to tissue engineering. While advances in polymer chemistry have facilitated synthesis and development of new polymers, increasing efforts have also been directed to engineer properties of existing polymers. One of the common approaches to modify polymer properties is cold drawing, which can align polymer chains and orient the chains in a crystalline manner. Regarding the industrial significance of cold drawing in polymer engineering, this study used semi-crystalline high density polyethylene (HDPE) as a model to examine the effect of cold drawing on the anisotropic mechanical properties of polymers. During cold drawing, the yield strength of the polymer was shown to be in a positive relationship with the strain rate, and the hardness of the cold-drawn region was demonstrated to be significantly enhanced. Our results confirmed the feasibility of engineering the properties of polymers by applying tension for plastic deformation, and highlighted the importance of precise control of the strain rate in the treatment.

KEYWORDS

Cold Drawing, Mechanical Deformation, Polymers, Strain Rate

Share and Cite:

Lai, W. (2015) Study on Modification of Polymer Properties by the Cold Drawing Process. Soft, 4, 1-7. doi: 10.4236/soft.2015.41001.

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