Modified polyurethane elastomeric fiber

Abstract

The invention discloses a modified polyurethane elastomeric fiber. The modified polyurethane elastomeric fiber is prepared via mixing of a polyurethaneurea with a polyurethane; the polyurethaneurea comprises copolymerization polyalkylidene ether diol, a diisocyanate, and a diamine; the polyurethane is obtained via stretching of diol chains; the diisocyanate comprises a mixture of positional and geometrical isomers of bis(isocyanatomethyl) cyclohexane; and the copolymerization polyalkylidene ether diol is prepared from an alkylidene ether.

Description

technical field [0001] The invention relates to an improved polyurethane elastic fiber, belonging to the technical field of polyurethane synthetic fibers. Background technique [0002] At present, although the clothing materials for special occasions are elastic, they are easy to reduce the elastic function and cause severe wire breakage after a long service life. The existing polyurethane fiber clothing materials can no longer meet the current market demand. [0003] Therefore, a new technical solution is needed to solve the above technical problems. Contents of the invention [0004] In order to solve the deficiencies in the prior art, the invention proposes an improved polyurethane elastic fiber. [0005] In order to solve the above-mentioned technical problems, the present invention provides an improved polyurethane elastic fiber, which is formed by mixing polyurethane urea and polyurethane. The polyurethane urea includes copolymerized polyalkylene ether glycol, diiso...

AI Technical Summary

Problems solved by technology

[0002] At present, although the clothing materials for special occasions are elastic, they are easy to reduce the elastic function and cause severe wire breakage after being used for a long time. The existing polyurethane fiber clothing materials can no longer meet the current market demand.