Devulcanizing Recycled Rubber by Thermochemical Method

Fang Yien Lim, Lih Jiun Yu, Elango Natarajan, Meng Choung Chiong, Ruey Shan Chen, Nai Yeen Gavin Lai

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review


Extensive scientific research has been conducted to examine and understand the vulcanization process and its chemical reactions. However, it is equally crucial to thoroughly investigate the chemical reaction mechanisms involved in devulcanization for rubber products to be produced and consumed sustainably. This study used benzoyl peroxide as the devulcanizing agent for the thermochemical devulcanization process of waste rubber products (WRP). The devulcanization process was carried out in an internal mixer at the temperature of 150 °C and 180 °C using benzoyl peroxide as devulcanizing agent and under different types of conditions. The degree of devulcanization was estimated by measuring the crosslink density. The morphological changes of the devulcanized rubber were also examined. It was determined that the lowest crosslinking density was obtained when WRP was processed at benzoyl peroxide: rubber ratio (1.25:1) at 180 °C for 15 min. Other than that, the impact of WRP devulcanizing on the environmental effects targeting the climate action (SDG-13) was discussed in this study.

Original languageEnglish
Title of host publicationAdvances in Intelligent Manufacturing and Robotics - Selected Articles from ICIMR 2023
EditorsAndrew Tan, Fan Zhu, Haochuan Jiang, Kazi Mostafa, Eng Hwa Yap, Leo Chen, Lillian J. A. Olule, Hyun Myung
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages13
ISBN (Print)9789819984978
Publication statusPublished - 2024
EventInternational Conference on Intelligent Manufacturing and Robotics, ICIMR 2023 - Suzhou, China
Duration: 22 Aug 202323 Aug 2023

Publication series

NameLecture Notes in Networks and Systems
ISSN (Print)2367-3370
ISSN (Electronic)2367-3389


ConferenceInternational Conference on Intelligent Manufacturing and Robotics, ICIMR 2023


  • Benzoyl peroxide
  • Devulcanization
  • Environmental effect
  • SDG-13
  • Thermochemical

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Computer Networks and Communications


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