杯芳烃抗氧剂在高密度碳氢燃料JP-10中的抗氧化性能研究  

Study on the antioxidant property of calixarene in high density hydrocarbon fuel JP-10

作　　者：杨昱欣 雷全 陈鑫阳 戴怿童 方文军[1] 郭永胜[1] YANG Yuxin;LEI Quan;CHEN Xinyang;DAI Yitong;FANG Wenjun;GUO Yongsheng(Department of Chemistry Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学化学系,浙江杭州310058

出　　处：《燃料化学学报（中英文）》2024年第6期873-882,共10页Journal of Fuel Chemistry and Technology

摘　　要：高密度吸热型碳氢燃料在热、催化等作用下会与溶解氧发生氧化反应,导致使用性能降低,进而威胁飞行安全。杯芳烃在与常用的酚类抗氧剂分子结构相似的前提下,拥有更好的热稳定性,可以在苛刻的工作环境中对燃料起到抗氧化作用。本实验合成了具有油溶性的C-十一烷基间苯二酚杯[4]芳烃(C_(11)-C[4]R),考察其在高密度碳氢燃料JP-10中的抗氧化性能,并与商用抗氧剂2,6-二叔丁基-4-甲基苯酚(BHT)、四[β-(3,5-二叔丁基-4-羟基苯基)丙酸]季戊四醇酯(L-1010)和β-(3,5-二叔丁基-4-羟基苯基)丙酸十八碳醇酯(L-1076)等的抗氧化效果进行对比。高压差示扫描量热仪(PDSC)评价结果显示,四种抗氧化剂的效果排序为:C_(11)-C[4]R>BHT>L-1010>L-1076。还采用静态釜加速氧化法研究了JP-10的氧化反应历程,提出了C_(11)-C[4]R在JP-10中的抗氧化机理。Since the 21st century,hypersonic flight technology has attracted much attention.When the aircraft is flying at a high Mach number,a large amount of aerodynamic heat is generated between the air and the aircraft due to friction,resulting in a rapid increase in the temperature of the aircraft subsystem,exceeding the range that the material can withstand,affecting the flight safety of the aircraft.In order to meet the thermal management needs,an integrated cooling approach combining heat transfer and combustion has been introduced.This method utilizes hydrocarbon fuels both as propellants and coolants to absorb the excess heat from the aircraft’s high-temperature components,thereby enhancing energy efficiency and managing the thermal conditions of high-speed aircraft.Fuels that satisfy this concept are called endothermic hydrocarbon fuels.However,these fuels are prone to oxidation due to heat,oxygen,and catalysis during storage and use,leading to the formation of insoluble gums and degraded performance,which may even clog the fuel system,endangering flight safety.Thus,suppressing the oxidation process of high-density endothermic hydrocarbon fuels is crucial for fuel storage and usage.Common methods to improve the oxidation stability of fuels include surface treatment,fuel deoxidation,and the addition of antioxidants to the fuel.Among these methods,adding antioxidants is one of the most commonly used methods.Hindered phenolic antioxidants are favored for their cost-effectiveness,but small molecule antioxidants like tertbutylhydroquinone(TBHQ)and butylated hydroxytoluene(BHT)suffer from sublimation at high temperatures,resulting in poor oxidation resistance.Conversely,commercial macromolecular antioxidants,such as L-1010 and L-1076,fall short of the antioxidant needs of hydrocarbon fuels due to their limited properties.In order to make up for the shortage of commercial hindered phenolic antioxidants,researchers have focused on the development of new antioxidants with high temperature resistance and significant anti

关 键 词：杯芳烃 抗氧剂 PDSC 抗氧化机制 

分 类 号：O6[理学—化学]