Article
  • Effect of Carbon Black Loadig in NR Compounds on Their Scorch Time, Thermal Conductivity and Bound Rubber Content
  • Sohn B, Park C
  • 천연고무 배합물 카본블랙 첨가량이 스코치 시간, 열전도도 및 결합고무 함량에 미치는 영향
  • 손봉영, 박찬영
Abstract
Bound rubber combined with carbon blacks in rubber compounds gives rise to the scorching phenomenon because of its large thermal adsorption accelerating the partialcure. In this study, we found the reasons of the scorching by measuring the thermal conductivity and the bound rubber in NR compounds as the various carbon black loading, and proposed a experimental equation which can estimate the scorch time reduction with carbon black loading quantitatively.

고무배합물에 존재하는 카본블랙과 결합된 결할고무는 열 흡수가 커져서 국부가교가 가속화 되어 스코칭 현상을 나타낸다. 본 연구에서는 카본블랙 첨가량에 따라 변하는 천연고무 배합물의 열전도도와 결합고무 함량을 측정하여 스코칭 현상의 원인을 분석하였고, 스코치 시간이 카본블랙 함량에 따라 감소하는 상태를 정량적으로 예측할 수 있는 실험식을 제안하였다.

Keywords: scorching; scorch time; carbon; thermal conductivity; bound rubber

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  • 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

  • 1996; 20(3): 506-513

    Published online May 25, 1996