| 新型气体灭火剂对飞机用橡胶材料的腐蚀性能研究* |
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| 引用本文： | 白荟琳,袁伟.新型气体灭火剂对飞机用橡胶材料的腐蚀性能研究*[J].中国安全生产科学技术,2022,18(2):159-164. |
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| 作者姓名： | 白荟琳 袁伟 |
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| 作者单位： | （中国民航大学 民航热灾害防控与应急重点实验室，天津 300300) |
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| 基金项目： | * 基金项目: 国家自然科学基金项目(51776219)；2020年天津市研究生科研创新项目(2020YJSS088)；中国民航大学科研启动基金项目(2020KYQD04) |
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| 摘 要： | 为研究氢氟烯烃（HFOs）与氢氟氯烯烃（HCFOs）灭火剂对于飞机用橡胶密封材料的腐蚀性，通过实验研究6种新型气体灭火剂（R1234yf，R1234ze，R1234ze-E，R1233xf，R1233zd，R1336mzz-E），对目前飞机用4种橡胶O型圈（硅橡胶VMQ，氟橡胶FKM，氟硅橡胶FVMQ和丁腈橡胶NBR）的腐蚀作用。在70 ℃，0.1 MPa工况下开展腐蚀实验，对实验前后橡胶的性能参数进行测试，并结合红外测试结果进行性能下降分析。结果表明:R1336mzz-E可对FKM造成腐蚀，样品拉伸强度下降20.91%，拉断伸长率下降44.28%，且表面褪色、开裂；FVMQ在R1234ze气氛中发生严重的交联老化反应，拉伸强度下降44.4%；R1336mzz-E对FVMQ造成腐蚀，暴露后拉伸强度下降39.96%。
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| 关 键 词： | 新型气体灭火剂 弹性密封材料 力学性能 腐蚀性 |
Study on corrosivity of new gas fire extinguishing agents to aircraft rubber materials |
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| BAI Huilin,YUAN Wei.Study on corrosivity of new gas fire extinguishing agents to aircraft rubber materials[J].Journal of Safety Science and Technology,2022,18(2):159-164. |
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| Authors: | BAI Huilin YUAN Wei |
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| Affiliation: | (Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response,Civil Aviation University of China,Tianjin 300300,China) |
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| Abstract: | In order to study the corrosivity of hydrofluoroolefins (HFOs) and hydrochlorofluoroolefins (HCFOs) fire extinguishing agents to the aircraft rubber sealing materials,the corrosion effect of six kinds of new gas fire extinguishing agents (R1234yf,R1234ze,R1234ze-E,R1233xf,R1233zd,R1336mzz-E) on four kinds of rubber O-rings including the silicone rubber (VMQ),fluorosilicone rubber (FKM),fluorosilicone rubber (FVMQ) and nitrile rubber (NBR) used in aircraft at present was studied through the experiments.The corrosion experiments were studied under the conditions of 70 ℃ and 0.1 MPa,then the performance parameters of rubber before and after the experiments were measured,and combined with the results of infrared testing,the performance degradation analysis was conducted.The results showed that R1336mzz-E caused corrosion to FKM,the tensile strength and elongation at break of sample decreased by 20.91% and 44.28%,respectively,and the surface of FKM was discolored and cracked.FVMQ was seriously crosslinked and aged in R1234ze atmosphere,and the tensile strength decreased by 44.4%.R1336mzz-E caused corrosion to FVMQ,and the tensile strength after exposure decreased by 39.96%. |
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| Keywords: | new gas fire extinguishing agent elastic sealing material mechanical performance corrosivity |
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