Article
  • Effects of Maleic Anhydride Content on Thermomechanical and Mechanical Properties of Maleated Natural Rubber

  • Nabil Hayeemasae*, ** , Mohamad Irfan Fathurrohman*** , and Abdulhakim Masa**, ****,†

  • *Department of Rubber Technology and Polymer Science, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Pattani, 94000, Thailand
    **Research Unit of Advanced Elastomeric Materials and Innovations for BCG Economy (AEMI), Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Pattani, 94000, Thailand
    ***Indonesian Rubber Research Institute, Salak Street No. 1 Bogor, 16128, Indonesia
    ****Rubber Engineering & Technology Program, International College, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand

  • 무수 말레이산 함량에 따른 말레인산 천연고무의 열적 기계적 물성 연구

  • 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.

Abstract

Influences of maleic anhydride (MA) contents (1-10 wt%) on the properties of natural rubber (NR) grafted with MA – or maleated natural rubber (MNR) – were investigated. According to rheometric tests, the scorch and cure times of MNRs were longer than that of NR, because the acidity of MA slowed down crosslinking reactions and decreased grafting efficiency of MA onto the NR. The maximum torque and torque difference of MNRs were improved over NR due to the maleated linkages formation. These maleated linkages induced greater crosslink density and shifted thermo-stability of NR toward higher temperature. A dramatic increase in crosslink density was attained in the MNR containing 1% MA, having also the highest thermomechanical properties and tensile strength. The thermostability and tensile strength of the MNR containing 1% MA were improved by about 10 ℃ and 53% over those of the NR.


Keywords: natural rubber, maleated natural rubber, grafting reaction, thermomechanical properties.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2023; 47(5): 565-573

    Published online Sep 25, 2023

  • 10.7317/pk.2023.47.5.565
  • Received on Jan 25, 2023
  • Revised on Jul 6, 2023
  • Accepted on Jul 12, 2023

Correspondence to

  • Abdulhakim Masa

  • **Research Unit of Advanced Elastomeric Materials and Innovations for BCG Economy (AEMI), Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Pattani, 94000, Thailand
    ****Rubber Engineering & Technology Program, International College, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand

  • E-mail: abdulhakim.m@psu.ac.th