jms.5.3.13742 Mechanical Characterization of Polymer Materials Under Low Strain Rate Loading Dinesh Kumar Arshdeep Kaur Yugam Kumar Aggarwal Piyush Uniyal Navin Kumar Prashant Jindal Journal on Material Science 2347–615X 5 3 8 14 10.26634/jms.5.3.13742 Sigma Mixing, Injection Molding, Young's Modulus, Tensile Strength In the present research work, mechanical tensile properties of Acrylonitrile Butadiene Styrene (ABS), Polyketone (PK), Polypropylene (PP), and Acrylic have been evaluated at low strain rate loading (0.1s , 0.01s and 0.001s ). Sigma Mixing (SM) and Injection Molding (IM) techniques have been used to fabricate dog bone shaped specimens of these polymers. Effect of different fabrication techniques on tensile behaviour of these four polymers has been evaluated. Young's modulus of all polymers is enhanced significantly when specimens are fabricated by Sigma mixing technique. A noticeable improvement of 22.7%, 11.6%, 41%, and 45% in the Young's modulus of ABS, PK, PP, and Acrylic fabricated by Sigma mixing has been observed in comparison to Injection moulded specimens. Molecular orientation, better homogeneity, and strong binding of molecules could be the reasons for this improvement in Young's modulus of specimens fabricated by sigma mixing. This low cost fabrication technology (Sigma mixing) with higher production rate and improved mechanical properties will make this research work more applicable for the fabrication of automotive parts, protective headgear, engineering plastics, electronic assemblies, and other mechanical devices. October - December 2017 Copyright © 2017 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13742