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Functional spandex fiber preparation method

A spandex fiber and functional technology, applied in the field of preparation of functional spandex fiber, can solve problems such as the limitation of application scope, and achieve the effects of wide application field, good antibacterial property and excellent performance

Pending Publication Date: 2021-11-02
张家港市昌源氨纶制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, spandex fiber is generally used in most dyes and finishing agents of synthetic fibers and natural fibers, and is also suitable for dyeing and finishing of spandex, but its application range has relatively large limitations.

Method used

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  • Functional spandex fiber preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of functional spandex fiber, the preparation method comprises the following steps:

[0027] 1) Preparation of prepolymer: N,N-dimethylacetamide, A part graphene, polyether diol, and then add diisocyanate according to the ratio of NCO / OH=1.70~1.90; prepolymerization reaction temperature The temperature is controlled at 70-80°C, and the reaction time is 3.0-4 hours. During the reaction, nitrogen gas is introduced for protection to obtain a prepolymer solution with a solid content of 38%-40%. The number-average molecular weight of the polyether glycol is 2000 ~2500, the molecular weight distribution is 1.4~1.5.

[0028] 2) mixing the graphene, zinc oxide nanoparticles and / or titanium dioxide nanoparticles, mixed amines, and auxiliary materials in part B in N, N-dimethylacetamide to obtain a mixed amine solution;

[0029] The added amount of zinc oxide nanoparticles and / or titanium dioxide nanoparticles accounts for 2% of the functional spandex fiber...

Embodiment 2

[0039] The preparation method of functional spandex fiber, the preparation method comprises the following steps:

[0040] 1) Preparation of prepolymer: N,N-dimethylacetamide, A part of nano-carbon fiber material, polyether diol, and then add diisocyanate according to the ratio of NCO / OH=1.70~1.90; prepolymerization reaction The temperature is controlled at 70-80°C, the reaction time is 3.0-4 hours, and nitrogen gas is passed into the reaction process for protection to obtain a prepolymer solution with a solid content of 38%-40%; the number average molecular weight of the polyether glycol 2000-2500, molecular weight distribution 1.4-1.5

[0041] 2) Mix the carbon nanofiber material, zinc oxide nanoparticles and / or titanium dioxide nanoparticles, mixed amine, and auxiliary materials in N, N-dimethylacetamide to obtain a mixed amine solution;

[0042] The mass ratio of the carbon nanofiber material in the A part to the carbon nanofiber material in the B part is 3:7;

[0043] Th...

Embodiment 3

[0051] The difference with Example 1 is only: step 1) and step 2) add the mixture of graphene and carbon nanofiber material in any proportion, the addition of graphene and carbon nanofiber material accounts for the adjustment of functional spandex fiber quality to be 8% .

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Abstract

The invention discloses a functional spandex fiber preparation method. The preparation method comprises the following steps: using an organic solvent, a part A graphene or carbon nanofiber material, polyether glycol and diisocyanate to obtain a prepolymer solution; and reacting the prepolymer solution with a chain extension solution, filtering melt, and conducting spinning by spinning equipment to prepare functional spandex fiber. The spandex fiber is multifunctional, has the characteristics of far infrared, bacteriostasis, high elasticity, high strength, static resistance and the like, and is wider in application field.

Description

technical field [0001] The invention relates to the technical field of chemical engineering, in particular to a preparation method of functional spandex fibers. Background technique [0002] Spandex fibers are widely used due to their high elongation at break (above 400%), low modulus and high elastic recovery. In addition to high strength, other physical and mechanical properties of spandex fiber are very similar to natural latex silk. However, its strength is 2 to 3 times higher than that of latex silk, its linear density is also finer, and it is more resistant to chemical degradation. Spandex has good acid and alkali resistance, sweat resistance, sea water resistance, dry cleaning resistance and abrasion resistance, and is resistant to various dry cleaning agents and most sunscreen oils. [0003] At present, spandex fiber is generally used in most dyes and finishing agents of synthetic fibers and natural fibers, and is also suitable for dyeing and finishing of spandex, ...

Claims

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Application Information

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IPC IPC(8): D01F6/94D01F1/10D01F1/09D01D5/28
CPCD01F6/94D01F1/103D01F1/09D01F1/10D01D5/28
Inventor 张满芬曹雄飞曹平
Owner 张家港市昌源氨纶制造有限公司
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