关键词: 有机防火堵料, 热解, 气体, 成分分析, 安全

Abstract: Analytical testing methods such as thermogravimetric-infrared spectroscopy (TG-FTIR), gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) were used to analyze the flue gas generated after pyrolysis of an organic fireproof plugging material. TG-FTIR analysis intimated that carbon dioxide was the major component of the flue gas produced by pyrolysis, no matter under aerobic or restricted oxygen conditions. The reason might be that the carbon dioxide mainly came from the thermal decomposition of some inorganic components and decarboxylation of some organic components, which were less affected by oxygen. The composition and content of?the flue gas pyrolyzed under aerobic atmosphere at 700 °C were comprehensively analyzed by GC and GC-MS, and 21 gas components were determined. The safety assessment of the gases may adversely affect the fire rescue work and the surrounding environment was carried out to reveal the potential hazards that may be exposed by using this organic fireproof plugging material in a fire. This work provides a?certain reference for the future development and improvement of organic fireproof plugging materials.

Key words: Organic fire blocking material, pyrolysis, gas, composition analysis, safety