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Fire Sci. Eng. > Volume 33(3); 2019 > Article
Fire Science and Engineering 2019;33(3):21-28.
DOI: https://doi.org/10.7731/KIFSE.2019.33.3.021    Published online June 30, 2019.
섬유강화재 함유율에 따른 FRTP의 기계적 특성 및 연소특성에 관한 연구
김경진1, 엄상용2, 김기환3
1(주)정평이앤씨 대표이사
2LG사이언스파크 안전환경센터장
3한국소방안전원 정책연구소 연구원
A Study on the Mechanical and Combustion Characteristics According to Fiber Reinforcements Weight Fraction of FRTP
Kyoung-Jin Kim1, Sang-Yong Eom2, Ki-Hwan Kim3
1CEO, Justice and Peace Engineering & Consulting
2EHS Center Manager, LG Sciencepark
3Researcher, Policy Research Institute, Korea Fire Safety Institute
Correspondence:  Sang-Yong Eom, Tel: +82-2-6987-1322, Fax: +82-504-044-7375, 
Email: eomsy73@naver.com
Received: 10 October 2018   • Revised: 13 March 2019   • Accepted: 21 May 2019
요약
본 연구에서는 섬유강화 열가소성 플라스틱 복합재료(Fiber Reinforced thermo plastics, FRTP)의 기계적 특성 및 화재 위험성 예측을 위한 연소특성을 평가하였다. 폴리카보네이트와 나일론에 섬유강화재로 유리섬유와 탄소섬유를 각각 0~40 wt% 혼합하여 특성변화를 실험한 결과, 섬유강화재의 함유율이 증가할수록 비강도와 열변형 온도가 증가하였고 난연성은 유리섬유 함유율이 30 wt% 이상인 경우 V-0 등급을 보였다. 연소특성의 경우 섬유강화재의 함유율이 증가함에 따라 착화시간도 비례하여 증가하였으며, 최대 열방출율은 섬유강화재를 40 wt% 함유 시 함유하지 않았을 때보다 폴리카보네이트는 약 51%, 나일론은 약 24% 수준으로 낮아졌다. CO 발생율은 일정시간까지 감소하다가 증가하는 경향을 보이며, 이는 시간이 지남에 따라 불완전연소에 의한 것으로 판단된다. CO2 발생율은 열방출율과 매우 유사한 경향을 보이며, 최대 CO2 발생율은 섬유강화재를 40 wt% 함유 시 함유하지 않았을 때보다 폴리카보네이트는 약 50%, 나일론은 약 28% 수준으로 낮아졌다.
Abstract
To examine the mechanical and combustion characteristics of FRTP, either polycarbonate or nylon were used as a matrix, and either glass fiber or carbon fiber were used as the fiber reinforcement. The fiber reinforcement content was differentiated at 0~40 wt%. The tensile strength and heat distortion temperature increased with increasing reinforcement content. When the fiber reinforcement content was above 30 wt%, the flammability rating showed V-0. As the fiber reinforcement content increased from 0 to 40 wt%, the peak heat release rate of polycarbonate decreased by approximately 51% and that of nylon decreased by approximately 24%. The rate of CO generation decreased for a period of time, and then increased. This appears to have resulted from incomplete combustion. The rate of CO2 generation shows a similar tendency with the heat release rate. As fiber reinforcement content levels increased from 0 to 40 wt%, the CO2 peak rate of polycarbonate generation decreased by approximately 50% and that of nylon decreased by 28%.
Key Words: Fiber reinforced thermo plastic (FRTP), Cone calorimeter, Heat release rate, Total heat release


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