| abstract |
PROBLEM TO BE SOLVED: To provide a thin film which is excellent in coating property on a substrate at the time of forming a thin film and has low shrinkage, while sufficiently securing a solid content concentration in a solution used for coating. A thin film comprising a composition of an aromatic polyamide (A) and particles (B), wherein the content of the particles (B) in the thin film is 55 to 99% by volume, and the aromatic polyamide (A) A) a number average molecular weight of 10,000 to 200,000 and a weight average molecular weight / number average molecular weight of the aromatic polyamide (A) of 5.0 or less. [Selection diagram] None |