AGGREGATE OF MIXED POWDER CONTAINING POLYIMIDE, MOLDED ARTICLE COMPRISING SAME, AND METHOD FOR PRODUCING SAME

摘要

Disclosed is an aggregate of a mixed powder, said aggregate comprising a mixed powder, which comprises a polyimide powder and a fluororesin powder, and a polyimide precursor that has a repeating unit represented by chemical formula (1) and binds the particles of the mixed powder to one another. Also disclosed is a molded article produced using the aggregate. The fluororesin powder preferably comprises polytetrafluoroethylene (PTFE). The aggregate preferably also contains a filler. In chemical formula (1), A represents a tetravalent group produced by removing a carboxyl group from an aromatic tetracarboxylic acid and/or a tetravalent group produced by removing a carboxyl group from an aliphatic tetracarboxylic acid, and B represents a bivalent group produced by removing an amino group from an aromatic diamine and/or a bivalent group produced by removing an amino group from an aliphatic diamine.