RP-1煤油凝胶的制备与性能表征

Preparation and Performance Characterization of RP-1 Jet Fuel Gel

为了研究凝胶燃料的流变机理和配方设计的基础理论,根据凝胶特殊的固-液形态,寻找凝胶化航空煤油RP-1需要的无机和有机凝胶剂,对其成胶机理、流变表征和稳定性进行研究,通过Brookfield流变仪测量流变参数,并构建出无机和有机煤油凝胶的HBE本构方程。结果表明:采用高速剪切分散比三辊研磨分散制备的无机煤油凝胶质量好;加入无水乙醇有利于凝胶剂A对煤油的凝胶化;无机煤油凝胶的物理稳定性受凝胶剂含量影响显著,实际应用选择6%和7%无机凝胶;所制备的煤油凝胶比典型的剪切变稀流体(0<n<1)的稀化能力更强;无机和有机煤油凝胶的复凝性很弱且不受凝胶剂含量的影响。

In order to research the basic theory of the rheological mechanism and formula design of the gel fuel,according to the special solid-liquid state of gel,inorganic and organic gel agents for gelation aviation ker-osene RP-1 are searched and then the gelation mechanism, rheological characterization and stability are stud-ied. Finally, the rheological parameters are measured by Brookfield rotational rheometer and the HBE constitu-tive equation is built. The results show that,the inorganic kerosene gel made by high speed dispersion has better quality than that made by three-roller grinding. The anhydrous ethanol is advantageous for the gelation of kero-sene by gel agent A. The physical stability of the inorganic kerosene gel is affected by gel content significantly , 6%and 7%inorganic gel will be chosen for use. The thinning ability of the kerosene gel prepared is stronger than that of the typical shear thinned fluid （0〈n〈1） . The resilience of inorganic and organic kerosene gel is very weak and is not affected by the gel content.