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아임계와 초임계유체로써 폐타이어 분해와 추출에 미치는 용매의 영향
강원석(W . S . Kang),나대엽(D . Y . Na),김인실(I . S . Kim),한성범(S . B . Han),박판욱(P . W . Park) 한국고무학회 1999 엘라스토머 및 콤포지트 Vol.34 No.3
N/A Side wall samples from a used automotive tire were subjected to subcritical and supercritical decomposition and extraction with three solvents, water, 28% ammonia solution and ammonia. For 6㎜ cube samples the rate of supercritical extraction with water followed a first-order kinetics with an activation energy of 140 kJ/㏖. Solvent power of 28% ammonia solution at supercritical condition was found to be higher than supercritical water at initial extraction as pressure decreased. These phenomena were considered to be an effect of ammonia involved in water.