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노화 매질과 충진 시스템이 천연고무 복합체의 회복 거동에 미치는 영향

Influence of Aging Media and Filler System on Recovery Behaviors of Natural Rubber Composites

  • 투고 : 2012.04.02
  • 심사 : 2012.04.27
  • 발행 : 2012.06.30

초록

공기와 증류수에서 노화시킨 천연고무 복합체의 원형 변형으로부터의 회복 거동의 차이를 연구하였다. 공기에서 노화시킨 시험편의 회복률이 증류수에서 노화시킨 것보다 더 컸다. 충진제로 보강한 시험편의 회복속도가 비충진 시험편보다 더 빨랐다. 카본블랙으로 보강한 시험편의 회복속도가 실리카로 보강한 시험편보다 더 빨랐다. 노화 매질에 따른 회복 거동의 차이는 가교밀도 변화와 아닐링 효과로 설명하였다.

Difference in recovery behaviors from the circular deformation of natural rubber (NR) composites aged in air and distilled water, respectively were investigated. Recoveries of the samples aged in air were larger than those of the samples aged in distilled water. Recovery rates of the samples reinforced with filler were faster than those of the unreinforced ones. Recovery rates of the carbon black-filled samples were faster than those of the silica-filled ones. Difference in the recovery behaviors according to the aging media can be explained by the crosslinking density changes and the annealing effect.

키워드

참고문헌

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피인용 문헌

  1. Effects of thermal aging on degradation mechanism of flame retardant-filled ethylene-propylene-diene termonomer compounds vol.132, pp.4, 2014, https://doi.org/10.1002/app.41324
  2. Influence of microstructure in nitrile polymer on curing characteristics and mechanical properties of carbon black-filled rubber composite for seal applications vol.48, pp.8, 2016, https://doi.org/10.1177/0095244315613621