Journal
POLYMER TESTING
Volume 21, Issue 4, Pages 389-395Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0142-9418(01)00101-5
Keywords
thermoplastic elastomer; polypropylene; natural rubber; recycle rubber; blend
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Fine rubber powder obtained from the sanding process of polishing rubber balls and artificial eggs (recycled rubber, RR) was used to prepare polypropylene (PP)/RR blends, a thermoplastic elastomer using different RR content. A similar series of blends using natural rubber, SMR L (NR) was also prepared. The results indicated that at a similar rubber content, PP/RR blends have higher, tensile strength and Young's modulus but lower elongation at break and stabilization torque than PP/NR blends. Scanning electron microscopy (SEM) examination of the tensile fracture surface of PP/RR blends indicates that a higher energy is needed to cause catastrophic failure compared to PP/NR blends. (C) 2002 Elsevier Science Ltd. All rights reserved.
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