PET/PBT blending modified fiber

Abstract

The invention discloses a PET / PBT blending modified fiber. The fiber is prepared from, by weight, 30-50 parts of PBT, 80-120 parts of PET, 0.1-0.5 part of 4-methyl-2-(2-methyl-1-propenyl)tetrahydropyran, 0.5-1 part of a nucleation promoter and 0.5-1 part of a hydrophilic modifier, wherein the hydrophilic modifier is a mixture of N-(3-triethoxysilylpropyl)-4-hydroxybutanamide and 1-methoxy-2-epoxymethoxy)benzene. PBT and PET serve as a main body, blending is conducted, a blending material is prepared, by adding the hydrophilic modifier, a hydrophilic group on the surface of the blending material is increased, and thus in the process of using water-based dye for dyeing, the color fastness of the water-based dye can be improved.

Description

technical field [0001] The invention relates to a fiber, more specifically to a PET / PBT blended modified fiber. Background technique [0002] PET (polyethylene terephthalate, polyethylene terephthalate) is a linear thermoplastic polymer that was first industrialized by Dupont in 1953. It is a high melting temperature (Tm) and glass transition temperature (Tg). It is a crystalline polymer that can maintain excellent physical and mechanical properties in a wide temperature range. It has excellent fatigue resistance, friction resistance, excellent aging resistance, and outstanding electrical insulation. It is resistant to most organic solvents. It is stable with inorganic acids, and the production energy consumption is very low, and the processability is good, so it is widely used in the fields of synthetic fibers, films and engineering plastics. However, due to the rigidity of PET, the crystallization speed is slow, the molding mold temperature is high and the molding cycle T...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, PET and PBT are used to prepare blended fibers. However, during the dyeing process of this type of polymer fiber, oily dyes are used, which causes relatively large pollution.