• Effect of Whole Tire Reclaim on Physico-Mechanical and Thermal Properties of Carbon Black Filled Natural Rubber/Butadiene Rubber Composite
  • Vaishak Nambiathodi , Siby Varghese, and Neethu Varghese

  • Technical Consultancy Division, Rubber Research Institute of India, Kottayam, Kerala-686009, India

  • 폐타이어 재생 고무가 카본 블랙이 충전된 천연 고무/부타디엔 고무 복합재의 물리기계적, 열적 특성에 미치는 영향
  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.


Combinations of natural rubber (NR), butadiene rubber (BR), and reclaim rubber (RR) were prepared with a view to producing low-cost re-treading materials. It was found that cure time and scorch time decreased with the increase in the reclaim content. Only a small reduction in the properties was observed in almost all systems upon the addition of 30 phr of reclaim rubber. Systems with good abrasion resistance and tensile strength were obtained. High tensile values of 22.8 and 20.1 MPa were able to obtain for the NR-rich system. Tear strength can be enhanced by the addition of reclaim rubber. Elongation at break was higher for all the systems even after adding 30 phr of RR. Modulus and compression set values were increased with RR loading. The thermal behavior and activation energy of NR/BR/RR blends were improved by the addition of RR. The phase morphology of the blends was studied using a scanning electron microscope.

Keywords: activation energy, natural rubber/butadiene rubber blend, reclaim rubber, thermogravimetric analysis, scanning electron microscope analysis.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2020 Impact Factor : 0.493
  • Indexed in SCIE

This Article

  • 2021; 45(5): 688-696

    Published online Sep 25, 2021

  • 10.7317/pk.2021.45.5.688
  • Received on Mar 10, 2021
  • Revised on Apr 1, 2021
  • Accepted on May 20, 2021

Correspondence to

  • Vaishak Nambiathodi
  • Technical Consultancy Division, Rubber Research Institute of India, Kottayam, Kerala-686009, India

  • E-mail: