Abstract: In order to study the change characteristics of the toxic gases HF, CO and CO2 generated by the combustion of Teflon AFT250 aviation wire, a smoke toxicity test box was used for testing. The results show that under the conditions of ignition temperature of 1 150 ℃ and ignition duration of 10 s, the mass concentration of HF toxic gas generated by the combustion of Teflon AFT250 wire is 8 mg/m3, and the volume concentration of CO and CO2 generated are 0.001 5% and 0.12%, respectively. It shows that a certain amount of poisonous gas has been generated under this condition, but the concentration of poisonous gas is not large. As the length of the intercepted wire increases within 10 to 100 cm, the concentration of the generated toxic and harmful gases HF, CO and CO2 increase continuously. When the wire length is 100 cm, the mass concentration of HF increases to 18 mg/m3, the volume concentration of CO increases to 0.004%, and the volume concentration of CO2 increases to 0.425%. This is mainly due to the increase of the length of the wire will increase the insulating layer material PTFE in the content of F and C elements, more F and C atoms are combined with H and O atoms in the environment. As the ignition duration increases within 10—50 s, the toxic gases HF, CO, and CO2 generated by combustion all increase significantly, the mass concentration of HF gas increases by 7 mg/m3, and the increase by volume concentration of CO and CO2 is 0.001 5% and 0.07%, this is mainly due to the longer the ignition duration, which will cause more C-C and C-F chemical bonds to break, thereby increasing the concentration of HF, CO and CO2, and greatly increasing the risk of human poisoning and suffocation.
作者简介: 刘天奇,沈阳航空航天大学副教授,博士,硕士生导师,国家一级建造师。中国煤炭工业安全科学技术学会矿井降温专业委员会委员、中国煤炭工业安全科学技术学会瓦斯防治专业委员会委员、中国煤炭工业安全科学技术学会火灾防治专业委员会委员、辽宁省科技项目评审与科技成果评价专家、中国航空学会会员、清华大学公共安全科学技术学会会员,主要从事航空材料燃烧理论及防治技术、工业气体粉尘爆炸动力理论及防爆技术等方面研究。主持参与国家自然科学基金四项、省部级项目六项,参编著作《矿井粉尘防治理论及技术》,申报发明专利三项。获2016年度中国职业安全健康协会科学技术三等奖、2016年度中国商业联合会科学技术三等奖、第十届全国采矿学术会议优秀论文奖。Journal of Hazardous Materials、等期刊审稿专家,Journal of Safety Science and Technology、Journal of Aviation & Aerospace等期刊编委,国内外公开发表论文五十余篇。
引用本文:
刘天奇, 王宁, 蔡之馨. 铁氟龙AFT250航空电线燃烧毒害气体产物生成特性[J]. 材料导报, 2022, 36(1): 20110091-5.
LIU Tianqi, WANG Ning, CAI Zhixin. Generation Characteristics of Toxic and Harmful Gas Products in Combustion of Teflon AFT250 Aviation Wire. Materials Reports, 2022, 36(1): 20110091-5.
[1] Vorobyeva O, Bartok J, ian P, et al. International Journal of Environmental Research and Public Health,2020,17(3), 796. [2] Swarna V S, Alarifi I M, et al. Polymer Composites,2019,40,3691. [3] Jacob Marx, Samuel Robbins, Zane Grady, et al. Applied Surface Science,2020,505,144. [4] Simona Bennici, Téo Polimann, Michel Ondarts, et al. Renewable and Sustainable Energy Reviews,2020,117,1. [5] Vajdova Iveta, Jencˇová Edina, Szabo Stanislav. International Journal of Environmental Research and Public Health,2019, 16(20),138. [6] Pirozzi Domenico, Imparato Claudio, DErrico Gerardino, et al. Journal of Hazardous Materials,2020,387,121. [7] Sugawara M, Tago M. International Journal of Heat and Mass Transfer,2020,149,319. [8] Yang K, Wang Y,You Y, et al. Chemical Engineering Journal,2020,382,1. [9] Koenig A. Construction and Building Materials,2020,244,261. [10] Dong Yijia,Su Chao,Qiao Pizhong, et al. Construction and Building Materials,2020,243,369. [11] Valentina Colapicchioni, Silvia Mosca, Marina Cerasa, et al. Journal of Hazardous Materials,2020,393,76. [12] María Contreras, José Camacho, Francisco Morales. Journal of Environmental Management,2020,255,309. [13] Toony M,Algarni H. Environmental Monitoring and Assessment,2019,191(12),779. [14] Feng R, Tian R, Zhang H. Journal of Hazardous Materials,2019,379,1211. [15] Raquel Ramírez, Irina Lijanova, Natalya Likhanova. Arabian Journal of Chemistry,2020,13(1),27.
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2022, Vol. 36 
