Environment-friendly negative ion far-infrared flame-retardant polyester staple fibers and preparation method thereof

A negative ion far-infrared, flame-retardant polyester technology, applied in the manufacture of fire-retardant and flame-retardant filament, melt spinning, stretch spinning, etc., can solve the problems of loss of functional materials, affecting the permanent function of , Good wearing value, and the effect of improving spinnability

Inactive Publication Date: 2017-05-31
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that after washing, the functional materials will be lost, which will affect the permanent performance of the function

Method used

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  • Environment-friendly negative ion far-infrared flame-retardant polyester staple fibers and preparation method thereof
  • Environment-friendly negative ion far-infrared flame-retardant polyester staple fibers and preparation method thereof
  • Environment-friendly negative ion far-infrared flame-retardant polyester staple fibers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The terephthalic acid and ethylene glycol after the alcoholysis of the polyester bottle flakes are beaten with a molar ratio of 1:0.9 and put into the esterification kettle. The esterification temperature is controlled at about 250°C. When the top temperature is lower than 100°C, it is the end point of esterification; after the end of esterification, add anion far-infrared powder solution with a mass percentage of 3% and N,N-bis(2-hydroxymethyl ) Aminoethylphosphonic acid dimethyl flame retardant treatment solution, heated to 260°C and introduced into the polycondensation kettle, the vacuum was less than 50Pa, when the polycondensation temperature reached 285°C, the stirring was stopped, cooled, pelletized and dried to obtain an environmentally friendly Type regenerative anion far infrared function flame retardant polyester chips. The slices are first dried at 75°C for 3 hours, then heated to 110°C for 2 hours, then heated to 130°C for 2 hours, and finally heated to 145...

Embodiment 2

[0026] The terephthalic acid and ethylene glycol after the alcoholysis of polyester bottle flakes are beaten in a molar ratio of 1:0.8 and put into the esterification kettle. The esterification temperature is controlled at about 245°C. When the top temperature is lower than 100°C, it is the end point of esterification; after the end of esterification, add anion far-infrared powder solution with a mass percentage of 5% and a flame retardant N,N-bis(2- Hydroxymethyl) aminoethyl phosphonic acid dimethyl flame retardant treatment liquid, after heating up to 260 ° C, import it into the polycondensation kettle, the vacuum is less than 50 Pa, stop stirring when the polycondensation temperature reaches 285 ° C, after cooling, pelletizing and drying, An environment-friendly regenerated anion far-infrared functional flame-retardant polyester chip was prepared. The slices are first dried at 70°C for 4 hours, then heated to 100°C for 1 hour, then heated to 120°C for 2 hours, and finally h...

Embodiment 3

[0028]Put the terephthalic acid and ethylene glycol after the alcoholysis of polyester bottle flakes into pulp at a molar ratio of 1:0.7 and put them into the esterification kettle. The esterification temperature is controlled at 258°C. When the column top temperature is lower than 100°C, it is the end point of the esterification; after the esterification is completed, add an anion far-infrared powder solution with a mass percentage of 1% and a flame retardant N,N-bis(2 -Hydroxymethyl) aminoethyl phosphonic acid dimethyl ester treatment solution, heated up to 260°C and introduced into the polycondensation kettle, the vacuum was less than 50Pa, when the polycondensation temperature reached 285°C, the stirring was stopped, cooled, pelletized and dried to obtain Environmentally friendly regenerated anion far-infrared function flame-retardant polyester chips. The slices are first dried at 80°C for 3 hours, then heated to 120°C for 2 hours, then heated to 140°C for 1 hour, and fina...

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Abstract

The invention discloses environment-friendly negative ion far-infrared flame-retardant polyester staple fibers and a preparation method thereof. The fibers refer to the environment-friendly negative ion far-infrared flame-retardant polyester staple fibers with the permanent release hydroxyl negative ions (H3O2<->), far-infrared normal total emissivity of 00.88 and a limit oxygen index of 36.8%. The preparation method mainly comprises the following steps: taking environment-friendly recycled polyester bottle pieces as raw materials, performing alcoholysis so as to obtain recycled terephthalic acid and ethylene glycol, adding a negative ion far-infrared powder solution and N,N-bis(2-hydroxymethyl) aminoethyl dimethyl phosphate treatment liquid into the reactant, and preparing environment-friendly recycled negative ion far-infrared functional polyester chips; drying the chips, wherein the drying time is not less than 16 hours; performing melt spinning on the dried through a screw extruder, a spinning box, a seven-roller draw machine and other equipment, and drawing and performing after-treatment. According to the polyester staple fibers disclosed by the invention, the negative ion function, far-infrared function, flame-retardant and environmental protection function can be combined together.

Description

technical field [0001] The invention relates to a chemical fiber and a preparation method thereof. Background technique [0002] Ordinary polyester fiber has excellent wearing properties and a wide range of applications. As a textile raw material, the amount used has exceeded cotton, but there are some serious shortcomings. On the one hand, the comfort of polyester fabrics is poor, and plastics, chemical fibers and other products are not easy to degrade after being discarded. Therefore, the direct use of fossil resources to produce polyester fibers in large quantities has caused a great waste of resources and environmental pollution; on the other hand, the limiting oxygen index (LOI) of polyester is around 21. Dangers are also becoming more prominent. The health care effect of negative air ions on the human body has long been confirmed by the medical field, and is increasingly recognized by consumers. Negative ion textiles can continuously release negative air ions to achie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/07D01F1/10C08G63/692C08G63/78D01D1/04D01D1/10D01D5/08D01D5/12D01D10/02
CPCD01F6/92C08G63/6926C08G63/78D01D1/04D01D1/106D01D5/08D01D5/12D01D10/02D01F1/07D01F1/10
Inventor 李青山罗金琼李纪安蒋健
Owner YANSHAN UNIV
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