低压环境下氟碳表面活性剂的铺展性能
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摘要
以环己烷、航空煤油、95#车用汽油为原料,采用3种氟碳表面活性剂分别在94.6、74.1、61.0 kPa的环境低压下开展实验,分析表面活性剂复配液在不同油品上的铺展系数、铺展速度、铺展质量随压力的变化,研究高高原低压环境对表面活性剂铺展性能的影响。研究发现,FC-4、FC-6、FC-8分别在环己烷、航空煤油及95#汽油上的铺展系数、铺展速度和铺展量均随大气压力的下降而下降。高高原低压环境对水成膜泡沫灭火剂(AFFF)具有负面影响。
Spreading performance of three typical fluorocarbon surfactants on the cyclohexane, aviation kerosene and 95# gasoline were studied at low pressures of 94.6, 74.1 and 61.0 k Pa respectively.The variations of spreading coefficient, spreading speed and spreading quality of surfactant mixture on different oils with pressure were analyzed, and the influence of high plateau and low pressure environment on surfactant spreading performance was researched.The results showed that the spreading coefficient, spreading speed and spreadingquantity of FC-4, FC-6 and FC-8 decreased uniformly with decreasingof ambient pressure.This phenomenon indicated that low pressure of high plateau would have a negative effect on the aqueous film-forming foam extinguishing agent(AFFF).
Spreading performance of three typical fluorocarbon surfactants on the cyclohexane, aviation kerosene and 95# gasoline were studied at low pressures of 94.6, 74.1 and 61.0 k Pa respectively.The variations of spreading coefficient, spreading speed and spreading quality of surfactant mixture on different oils with pressure were analyzed, and the influence of high plateau and low pressure environment on surfactant spreading performance was researched.The results showed that the spreading coefficient, spreading speed and spreadingquantity of FC-4, FC-6 and FC-8 decreased uniformly with decreasingof ambient pressure.This phenomenon indicated that low pressure of high plateau would have a negative effect on the aqueous film-forming foam extinguishing agent(AFFF).
引文
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[14]梁治齐,陈溥.氟表面活性剂[M].北京:中国轻工业出版社,1998.
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[16]肖进新,赵振国.表面活性剂应用技术[M].北京:化学工业出版社,2018.
[2]ERIK K.Fluorinatedsurfactants:synthesis,properties,applications[M].Newyork:Marcel Dekker Press,1994.
[3]MARIE L C,HENRY P,MARTIAL P.New additive for low viscosity of AFFF/AR concentrates-study of the potential fire performance[J].Fire Technology,2004,40:367-384.
[4]BENJAMIN J P,JENNIFER A F.Identification of novel nluorochemicals in aqueous film forming foams used by the US military[J].Environmental Science and Technology,2012,46:7120-7127.
[5]贾旭宏.水成膜泡沫灭火剂的研究进展[J].广州化工,2015,43(24):22-24.
[6]贾旭宏,贾乐强,陈现涛.海拔高度对水成膜泡沫灭火剂性能的影响[J].消防科学与技术,2016,35(4):556-558.
[7]陈现涛.低压低氧对水成膜泡沫灭火剂性能影响研究[J].消防科学与技术,2016,35(7):990-993.
[8]陈现涛,应柄松,孟亚伟,等.高原环境对水成膜泡沫灭火剂灭火性能影响[J].消防科学与技术,2017,36(2):201-204.
[9]王明武.高高原低压低氧对水成膜泡沫灭火剂的性能影响研究[D].广汉:中国民用航空飞行学院,2015.
[10]贾乐强.高高原环境下水成膜泡沫灭火性能研究[D].广汉:中国民用航空飞行学院,2016.
[11]SERVOS M R,OAKES K D,BENSKIN J P,et a1.Biomonitoring ofperfluoro-chemicals and toxicity to the downstream fish community of etobicoke creek following deployment of aqueous film-forming foam[J].Aquatic Toxicology,2010,98(2):120-129.
[12]KISHI T,ARAIM.Study on the generation of perfluorooctane sulfonate from the aqueous film-forming foam[J].Journal of Hazardous Materials,2008,159(1):81-86.
[13]杨百勤,陈凯,邢航,等.以全氟丁基为基础的具有高表面活性的氟表面活性剂[J].物理化学学报,2009,25(12):2409-2412.
[14]梁治齐,陈溥.氟表面活性剂[M].北京:中国轻工业出版社,1998.
[15]肖进新,赵振国.表面活性剂应用原理[M].北京:化学工业出版社,2003.
[16]肖进新,赵振国.表面活性剂应用技术[M].北京:化学工业出版社,2018.