BINDER FIBER AND SEPARATOR FOR ALKALINE CELL USING SAME

摘要

Disclosed is a binder fiber wherein at least a part of the fiber surface is composed of a polyamide component which contains a semi-aromatic polyamide having at least an aromatic ring unit and a C_3-7 alkane unit which may have a branched C_1-3 alkyl chain. In this binder fiber, the polyamide component may be a semi-aromatic copolyamide (a) having an aromatic ring unit, a C_3-7 alkane unit which may have a branched C_1-3 alkyl chain and a C_8-12 alkane unit which may have a branched C_1-3 alkyl chain. The polyamide component may alternatively be a combination (d) of a semi-aromatic polyamide (b) having an aromatic ring unit and a C_3-7 alkane unit which may have a branched C_1-3 alkyl chain and a semi-aromatic polyamide (c) having an aromatic ring unit and a C_8-12 alkane unit which may have a branched C_1-3 alkyl chain.