| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for producing a polyimide composite excellent in heat resistance, mechanical characteristics, gas barrier properties, dimensional stability and the like. SOLUTION: The process for producing a polyimide composite comprises the step of polymerizing a diamine component and an acid anhydride component, serving as raw material monomers of a polyimide, in an organic solvent in the presence of a intercalation compound comprising a laminar clay mineral having alkylammonium ions intercalated therein to obtain a polyamic acid solution having the intercalation compound dispersed therein and the step of imidizing the polyamic acid to obtain a polyimide composite, wherein the content of the exchangeable alkali metal ions in the intercalation compound is 500 ppm or lower.
|
