Paper Information

Journal:   IRANIAN POLYMER JOURNAL (ENGLISH)   September-October 2003 , Volume 12 , Number 5; Page(s) 373 To 380.
 
Paper: 

THE EFFECTS OF RECYCLE RUBBER POWDER CONTENT AND VARIOUS VULCANIZATION SYSTEMS ON CURING CHARACTERISTICS AND MECHANICAL PROPERTIES OF NATURAL RUBBER/RECYCLE RUBBER POWDER BLENDS

 
 
Author(s):  ISMAIL H.*, NORDIN R., NOOR A.M.
 
* School of Materials and Mineral Resources Engineering, University Sains Malaysia, 14300 Nibong Tebal, Seberang Perai Selatan, Penang, Malaysia
 
Abstract: 

The effects of recycle rubber powder (RRP) content and conventional (CV), semi-efficient (semi-EV) and efficient vulcanization (EV) systems on curing characteristics and mechanical properties of natural rubber (NR)/recycle rubber powder (RRP) blends were examined. The minimum torque, maximum torque and torque difference increase with increasing recycle rubber powder (RRP) content in NR/RRP blends, whereas the scorch time and cure time show opposite trend. NR/RRP Blends cured with the CV system showed the highest minimum torque, maximum torque and torque difference but longest cure time, t90. Increasing RRP content in NR/RRP blends increases the tensile modulus and hardness but decreases the tensile strength, tear strength, resilience and elongation at break. Although the CV system exhibits highest tensile modulus and hardness but NR/RRP blends cured with EV system show the highest tensile strength, tear strength, resilience and elongation-at-break followed by semi-EV and CV systems.

 
Keyword(s): RECYCLE RUBBER, CURING, MECHANICAL PROPERTIES, SULPHUR VULCANIZATION SYSTEM, NATURAL RUBBER
 
References: 
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