关键词: 离子液体, 无机材料, 热传导, 制备

Abstract: The modification of white carbon black，bentonite，kaolin，diatomaceous earth and perlite （deep and shallow） six different inorganic materials loaded with [C4mim]Br，[C7mim]Br，[C8mim]Br and [BPy]Br four ionic liquids was studied. FT-IR，TG and nitrogen adsorption-desorption of the specific surface area of these inorganic materials before and after modification were conducted. These modified inorganic fillers were then kneaded into rubber separately，and the thermal conductivity coefficients of rubber were measured. The thermal conductivity coefficients of these six kinds of inorganic materials modified by ionic liquids were all greater than those before modification. Wherein，the thermal conductivity coefficients of all these inorganic materials modified by [C4mim]Br increased the most. The thermal conductivity coefficient of Kaolin modified by [C4mim]Br was the highest，up to 0.389 W/(m?K)，89.76% greater than the unmodified.

Key words: ionic liquids, inorganic materials, thermal conductivity, preparation