2001•Polymer Engineering and ScienceRequires access

Thermoplastic elastomeric composition based on ground rubber tire

Amit K. Naskar, Anil Kumar Bhowmick, S. K. De

Abstract

Abstract Ground rubber tire (GRT) is a particulate vulcanizate consisting mainly of rubber hydrocarbon and fillers. Rubber hydrocarbon of GRT (rGRT) has been used as a partial substitute for EPDM rubber in a dynamically vulcanized EPDM/acrylic‐modified HDPE (A‐HDPE) blend. The blends with higher rubber content show poor processability and physical properties, while the compositions with higher plastic content behave like toughened plastics. However, the 60:40 rubber/plastic blend was found to behave as a thermoplastic elastomer, and it was observed that 50% of EPDM can be replaced by rGRT without deterioration in properties.

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Key concepts: Materials science, Vulcanization, Natural rubber, Composite material, Elastomer, High-density polyethylene, Thermoplastic elastomer, Thermoplastic