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Regenerated polyester fiber containing metal-modified cross-type esterified product and preparation method thereof

A technology of metal modification and recycled polyester, applied in the direction of chemical characteristics of fibers, single-component polyester rayon, rayon manufacturing, etc., can solve the problems of poor flame retardancy and antibacterial properties of recycled polyester fibers, etc. Achieving the effect of good promotion value, high content and reducing the influence of rheological properties

Active Publication Date: 2021-08-24
SHANGHAI DEFULUN CHEM FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of poor flame retardancy and antibacterial performance of the above-mentioned prior art regenerated polyester fiber, and to provide a regenerated polyester fiber containing metal modified cross-shaped ester compound with excellent flame retardancy and antibacterial performance and its preparation method

Method used

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  • Regenerated polyester fiber containing metal-modified cross-type esterified product and preparation method thereof
  • Regenerated polyester fiber containing metal-modified cross-type esterified product and preparation method thereof
  • Regenerated polyester fiber containing metal-modified cross-type esterified product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The preparation method of the regenerated polyester fiber containing metal-modified cross-type esterified product, the specific steps are as follows:

[0062] (1) prepare cross-type esterified product;

[0063] (1.1) Dibasic acid A 2 Mix with pentaerythritol at a molar ratio of 4:1, carry out melt esterification reaction under nitrogen protection and mechanical stirring at a stirring speed of 300rpm, collect the product, obtain DAPER through dissolution, filtration and drying, wherein the temperature of the melt esterification reaction is 200°C, the reaction time is 3h, A 2 The structural formula is:

[0064]

[0065] (1.2) Dibasic carboxylic acid B 2 Mix with ethylene glycol at a molar ratio of 1:1, add 4-methylbenzenesulfonic acid, and carry out melt condensation reaction under nitrogen protection and mechanical stirring at a stirring speed of 500rpm to obtain DADA, wherein B 2 The molar ratio with 4-methylbenzenesulfonic acid is 1:0.01, the temperature of melt...

Embodiment 2

[0080] The preparation method of the regenerated polyester fiber containing metal-modified cross-type esterified product, the specific steps are as follows:

[0081] (1) prepare cross-type esterified product;

[0082] (1.1) Dibasic acid A 2 Mix with pentaerythritol at a molar ratio of 4:1, carry out melt esterification under argon protection and mechanical stirring at a stirring speed of 350rpm, collect the product, dissolve, filter and dry to obtain DAPER, wherein the melt esterification The temperature is 185°C, the reaction time is 1h, A 2 The structural formula is:

[0083]

[0084] (1.2) Dibasic carboxylic acid B 2 Mix with propylene glycol at a molar ratio of 1:1, add 4-methylbenzenesulfonic acid, and carry out melt condensation reaction under nitrogen protection and mechanical stirring at a stirring speed of 300rpm to obtain DADA, wherein B 2 The molar ratio with 4-methylbenzenesulfonic acid is 1:0.01, the temperature of the melt condensation reaction is 185°C, a...

Embodiment 3

[0099] The preparation method of the regenerated polyester fiber containing metal-modified cross-type esterified product, the specific steps are as follows:

[0100] (1) prepare cross-type esterified product;

[0101] (1.1) Dibasic acid A 2 Mix with pentaerythritol at a molar ratio of 4:1, carry out melt esterification under the condition of helium protection and mechanical stirring at a stirring speed of 400rpm, collect the product, obtain DAPER through dissolution, filtration and drying, wherein the melt esterification The temperature is 180°C, the reaction time is 2h, A 2 The structural formula is:

[0102]

[0103] (1.2) Dibasic carboxylic acid B 2 Mix with 1,4-butanediol at a molar ratio of 1:1, add 4-methylbenzenesulfonic acid, and carry out melt condensation reaction under argon protection and mechanical stirring at a stirring speed of 500rpm to obtain DADA, wherein B 2 The molar ratio with 4-methylbenzenesulfonic acid is 1:0.01, the temperature of melt condensa...

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Abstract

The invention relates to a regenerated polyester fiber containing metal-modified cross-shaped esterified products and a preparation method thereof. The preparation method includes combining flame-retardant and antibacterial masterbatches mainly composed of recycled polyester chips and metal-modified cross-shaped esterified products with recycled The recycled polyester fibers containing metal-modified cross-shaped esterified products were obtained by melt-spinning the polyester chips after mixing them uniformly. The prepared fiber is mainly composed of recycled polyester fiber matrix and metal-modified cross-shaped ester compound uniformly dispersed in the recycled polyester fiber matrix; the metal-modified cross-shaped ester compound is formed by cross-linking the cross-shaped ester compound and metal ions Network polymer, metal-modified cruciform ester compound has insoluble and infusible characteristics, insoluble in organic solvents below 80°C, and does not melt in the range from room temperature to T, T≥380°C. The preparation method of the invention has simple process and low cost; the prepared product has high content of functional components, good flame retardancy and antibacterial performance, and is easy to process and shape.

Description

technical field [0001] The invention belongs to the technical field of recycled polyester, and relates to a recycled polyester fiber containing a metal-modified cross-type esterified product and a preparation method thereof, in particular to a recycled polyester fiber added with an organic flame retardant and antibacterial agent with good dispersion performance and the recycled polyester fiber and its preparation method. Preparation. Background technique [0002] In 2017, the global polyester production has exceeded 95 million tons, of which PET accounts for more than 88% of the total output, of which the fiber used accounts for more than 65% of PET. With the rapid development of the global polyester industry, the polyester industry is facing the problem of raw material sources and waste disposal. According to statistics, in 2017, more than 80% of PET polyester in mainland China was used to produce fibers. Finding new available raw material resources and how to effectively ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/07D01F1/10
CPCD01F1/07D01F1/103D01F6/92
Inventor 王佳欢李东华陆育明孙宾杨卫忠朱美芳周永华杨成
Owner SHANGHAI DEFULUN CHEM FIBER
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