TGA를 이용한 Chlorinated Poly Vinyl Chloride(CPVC)의 활성화 에너지 평가

Evaluation of the Activation Energy of Chlorinated Poly Vinyl Chloride (CPVC) Using Thermogravimetric Analysis

열중량 분석법(TGA)을 이용하여 소방용 합성수지 배관으로 사용되는 CPVC의 활성화 에너지를 측정하였다. 열중량 분석법을 이용한 활성화 에너지는 Kissinger method와 Flynn-Wall-Ozawa method를 이용하여 계산하였다. 활성화에너지를 계산한 결과 Kissinger method에 의해 128.07 kJ/mol, Flynn-Wall-Ozawa method에 의해 145.60 kJ/mol로 나타났다. Kissinger method와 Flynn-Wall-Ozawa method에 의해 계산된 활성화 에너지의 차이는 해석 방법이 다르다는 점을 감안했을 때 큰 차이가 없다고 판단된다. 향후 가속열화을 이용한 열적 열화평가 및 공기오븐노화시험을 통한CPVC의 연소특성을 시험하고, 수명을 예측하고자 한다.

The activation energy of CPVC (Chlorinated Poly Vinyl Chloride) used for non-metallic synthetic resin piping infire-fighting was measured by thermogravimetric analysis (TGA). The activation energy was determined using by TGAkinetic methods, such as Kissinger and Flynn-Wall-Ozawa method. The calculated activation energy was 128.07 kJ/mol(Kissinger method) and 145.60 kJ/mol (Flynn-Wall-Ozawa method). The difference in activation energies calculated by theKissinger method and Flynn-Wall-Ozawa method was not considered to be significant considering that the different analysismethods. The combustion characteristics will be tested in a future study through an evaluation of thermal deterioration usingan accelerated deterioration and air oven aging test and the lifetime of CPVC will be predicted.