Regenerated polyester fiber containing metal modified cross ester compound 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. To reduce the influence of rheological properties, ensure good rheological properties, flame retardant properties and antibacterial properties

Active Publication Date: 2019-03-08
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...

Method used

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  • Regenerated polyester fiber containing metal modified cross ester compound and preparation method thereof
  • Regenerated polyester fiber containing metal modified cross ester compound and preparation method thereof
  • Regenerated polyester fiber containing metal modified cross ester compound 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 regenerated polyester fiber containing a metal modified cross ester compound and a preparation method thereof. The preparation method comprises the following steps: uniformlymixing flame retardant antibacterial masterbatch which is mainly prepared from a regenerated polyester chip and the metal modified cross ester compound with a regenerated polyester chip, and then carrying out melt spinning to obtain the regenerated polyester fiber containing the metal modified cross ester compound. The prepared fiber is mainly composed of a regenerated polyester fiber matrix and the metal modified cross ester compound which is uniformly dispersed in the regenerated polyester fiber matrix; the metal modified cross ester compound is a network polymer formed by a cross ester compound and metal ions; the metal modified cross ester compound has the characteristics of insolubility and infusibility, is insoluble in organic solvents at the temperature of 80 DEG C or below and doesnot melt in a range of the room temperature to T; T is greater than or equal to 380 DEG C. The preparation method disclosed by the invention has the advantages of simple technology and low cost; theprepared product has the advantages of high functional component content, good flame retardant property and antibacterial property and easy formability.

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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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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