A kind of pet/pbt blend modified fiber

Abstract

The invention discloses a PET / PBT blended modified fiber, comprising the following parts by weight: PBT: 30-50 parts PET: 80-120 parts, 4-methyl-2-(2-methyl-1-propylene base) tetrahydropyran: 0.1~0.5 parts, nucleation accelerator: 0.5~1 part, hydrophilic modifier: 0.5~1 part, and the hydrophilic modifier is: N-(3-triethoxy a mixture of (silylpropyl)-4-hydroxybutyramide and 1-methoxy-2-(epoxymethoxy)benzene. Using PBT and PET as the main body, blending is carried out to prepare blended materials. By adding hydrophilic modifiers, the hydrophilic groups on the surface of the blended materials are increased, so that in the dyeing process using water-based dyes, the water-based dyes can be improved. color fastness.

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.