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Mechanical and dynamic mechanical properties of waste rubber powder/HDPE composite

✍ Scribed by J. I. Kim; S. H. Ryu; Y. W. Chang

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
310 KB
Volume
77
Category
Article
ISSN
0021-8995

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✦ Synopsis

Mechanical and dynamic mechanical properties of a waste rubber powderfilled high-density polyethylene (HDPE) composite are investigated. Rubber powder is surface-modified with acrylamide (AAm) using ultraviolet. Rubber powder and HDPE are extruded using a single-screw extruder and maleic anhydride-grafted polypropylene is added as a compatibilizer to improve the adhesion between rubber powder and HDPE. The tensile stress and strain of AAm-grafted rubber powder/compatibilizer/ HDPE composites always exhibit higher values than those of unmodified rubber powder/HDPE composites. Surface modification of rubber powder is shown to decrease the magnitude of the tan ␦ of the HDPE composite. Higher values of the notched Izod impact strength of a surface-modified rubber-filled composite is observed compared to those of unmodified rubber-filled composite. Experimental results show that acryl amide-grafted rubber powder reacts with maleic anhydride and it results in improved mechanical properties of the HDPE composite.

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