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Int J Fire Sci Eng > Volume 33(2); 2019 > Article
Fire Science and Engineering 2019;33(2):1-8.
DOI: https://doi.org/10.7731/KIFSE.2019.33.2.001    Published online April 30, 2019.
Butadiene Popcorn Polymer의 자연발화 위험성에 관한 연구
구채칠, 이정석, 최재욱
1한국산업안전보건공단 전문기술실
2한국산업안전보건공단 산업안전보건연구원
3부경대학교 소방공학과
A Study on the Risk of Spontaneous ignition to Butadiene Popcorn Polymer
Koo Chae-Chil, Lee Jung-Suk, Choi Jae-Wook
1Korea Occupational Safety and Health Agency
2Korea Occupational Safety and Health Agency
3Department of Fire Protection Engineering, Pukung National University
요약
본 연구는 화학공장에서 원료 및 제품으로 사용되는 Butadiene popcorn polymer에 자연발화가 일어날 수 있는지를 평가하기 위하여 성분분석, 열중량분석, 열안정성분석, 자연발화점 측정 및 가속속도열량측정분석을 실시하였다. 분석결과 성분분석에서는 다양한 종류의 가연성 성분이 측정되었고, 열중량 분석을 통해 공기중에서 95.6%, 질소중에서 89.2%의 중량감소가 측정되었다. 열안정성분석 결과, 공기분위기에서 $88^{circ}C$에서 발열이 시작되었으며, 자연발화점 부근($220^{circ}C$)에서는 발열속도가 급격히 증가하였다. 질소분위기에서 $70^{circ}C$ 부근에서 발열이 시작되었으며, $450^{circ}C$까지 두 단계의 분리된 발열 Peak값이 관측되었다. 가속속도열량측정결과 발열현상은 나타나지 않았으며, 자연발화점을 분석한 결과 최저발화온도는 $211.7^{circ}C$ 였다. 열안정성 평가에서 산출된 결과를 토대로 반응열에 의한 Column의 열적변형을 유발시킬 수 있는 가능성은 충분한 것으로 판단되었다.
Abstract
This study was conducted to investigate the possibility of spontaneous ignition in Butadiene popcorn polymer, which is used as raw material and product in a chemical plant. A component analysis, thermogravimetric analysis, thermal stability analysis, spontaneous ignition point measurement and accelerated velocity calorimetric analysis were performed. As a result of analysis, various kinds of flammable components were measured and thermogravimetric analysis showed a weight loss of 95.6% in air and 89.2% in nitrogen. As a result of the thermal stability analysis, heat generation started at $88^{circ}C$ in the air atmosphere, and the heat generation rate increased sharply in the vicinity of the natural ignition point ($220^{circ}C$). The heat generation started at about $70^{circ}C$ in nitrogen atmosphere, and the two exothermic peak values were observed up to $450^{circ}C$. As a result of accelerated rate calorimetry, there was no exothermic phenomenon, and the lowest ignition temperature was $211.7^{circ}C$ as a result of analysis of natural ignition point. Based on the results obtained from the thermal stability evaluation, it is considered that the possibility of inducing the thermal deformation of the column by the heat of reaction is sufficient.
Key Words: Auto ignition, Butadiene popcorn polymer, Thermal safety evaluation, Thermal deformation of column


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