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Recovery Behaviors of Natural Rubber Composites Thermally Aged in Altering Medium Systems of Air and Water

공기와 물의 교매질 시스템에서 열노화된 천연고무 복합체의 회복 거동

  • Choi, Sung-Seen (Department of Chemistry, Sejong Polymer Research Center, Sejong University) ;
  • Kim, Ok-Bae (Department of Chemistry, Sejong Polymer Research Center, Sejong University)
  • Received : 2013.04.18
  • Accepted : 2013.05.10
  • Published : 2013.09.30

Abstract

Unfilled, carbon black-filled, and silica-filled natural rubber (NR) composites were aged with a circular deformation at $60-90^{\circ}C$ and the recovery behaviors were investigated. The samples were aged under the altering aging medium systems of air and distilled water every day for 10 days. The order of the recoveries according to the filler systems was unfilled > silica > carbon black. The recoveries of the samples aged in the air to water altering system were greater than those of the samples aged in the water to air altering system. The initial aging medium dominantly influenced the deformation level.

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