Experimental analysis of high oxygen concentration influences on horizontal flame spread over PA6 and epoxy

7th International Conference on Key Engineering Materials

材料科学;工业技术

Wei, Ruichao^1,2 ; Yuen, Richard^2 ; Wang, Jian^1

State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui

230026, China^1

Department of Civil and Architectural Engineering, City University of Hong Kong, Hong Kong

999077, Hong Kong^2

关键词: Combustion characteristics;    Experimental analysis;    Flame spread rate;    Future spacecraft;    High oxygens;    Oxygen concentrations;    Thermoplastic materials;    Thermosetting materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012023/pdf
DOI  :  10.1088/1757-899X/201/1/012023

来源: IOP

【 摘 要 】

The combustion characteristic of material in high oxygen concentration is directly related to the safety of elevated oxygen environment similar to oxygen bombs and future spacecraft. In this study, flame front and flame spread rate in high oxygen concentration are discussed. Thermoplastic material polyamide (PA6) and thermosetting material epoxy are selected as comparison material. The variation of flame front over epoxy is more stable than PA6 which has dripping phenomenon during the flame spread process. The flame spread rate of both PA6 and epoxy have a power law with the increasing oxygen concentration.