Modified polyamide, method of preparing the same, and single component fiber

Abstract

A modified polyamide is provided, which has a structure of formula (1), in which a+c is 3-8, b is 8-40, m is 3-11, n is 2-16, x is 100-220, and y is 1-6. A method of preparing a modified polyamide is also provided, which includes copolymerizing C4-C12 lactam, C4-C18 linear aliphatic dicarboxylic acid, polyetherdiamine, and diethylenetriamine (DETA), in which the lactam is 80 to 95 parts by weight, and the linear aliphatic dicarboxylic acid is 1 to 4 parts by weight, and the polyetherdiamine is 4 to 16 parts by weight, and the diethylenetriamine is 0.2 to 0.6 parts by weight.

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