Article
  • Blends of Natural Rubber and Butadiene Rubber-Distribution Quantification of Carbon Black Filler

  • Vaishak Nambiathodi† , Siby Varghese, and Neethu Varghese

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

  • 천연고무와 부타디엔 고무의 혼합-카본블랙 충전제의 분포 정량화

  • 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

The present study deals with the distribution of N330 carbon black in cured 50/50 blend of natural rubber (NR) and butadiene rubber (BR). The results were reported in terms of tan δ and glass transition temperature (Tg). The reduced tan δ peaks in the BR phase with the increased filler loading and the corresponding shift in Tg of BR towards the positive side have shown that there was a preferential migration of carbon black towards the BR phase. Carbon black dispergrader was used to determine the dispersion of the filler on a series of blends with varying BR content. A theoretical evaluation on determining the preference of N330 has also been performed using Wu’s equation. The evaluation was well correlated with the result obtained from analytical data. It has been inferred that the N330 has migrated more towards the BR phase.


Keywords: rubber blends, dynamic mechanical analysis, dispergrader, filler distribution, Wu’s equation.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2021; 45(6): 865-871

    Published online Nov 25, 2021

  • 10.7317/pk.2021.45.6.865
  • Received on Jun 9, 2021
  • Revised on Jul 23, 2021
  • Accepted on Jul 26, 2021

Correspondence to

  • Vaishak Nambiathodi

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

  • E-mail: siby@rubberboard.org.in