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A kind of mildew-proof polyester with high washing resistance and preparation method thereof

A technology with high washing resistance and mildew resistance, applied in the field of fabrics, it can solve the problems of mildew rot of textiles, generation of bacterial plaque, affecting the finishing effect and the quality of finished products.

Active Publication Date: 2021-11-16
安徽深呼吸纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Textiles can absorb various nutrients in the air. Under suitable temperature and humidity conditions, microorganisms residing on textiles can reproduce and spread in large numbers, decompose and produce secretions, bring ammonia and other odorous substances, or form bacteria on fabrics. The mildew of textiles is very serious. Most of the bacteria will secrete various pigments, which will stain the textiles with red, blue, purple and black stains, which seriously affects the finishing effect and the quality of finished products.

Method used

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  • A kind of mildew-proof polyester with high washing resistance and preparation method thereof
  • A kind of mildew-proof polyester with high washing resistance and preparation method thereof
  • A kind of mildew-proof polyester with high washing resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 3-Chloro-2-hydroxypropyl methacrylate: CAS number: 13159-52-9; source: Shanghai Xianding Biotechnology Co., Ltd.;

[0033] N-methyliminodiacetic acid: CAS number: 4408-64-4; source: Shanghai Xianding Biotechnology Co., Ltd.

[0034] The preparation method of modifying agent is:

[0035] S1. Add 1 mol of heptamethyltrisiloxane and 1.12 mol of 3-chloro-2-hydroxypropyl methacrylate into the reaction kettle, add 1.5L of solvent isopropanol, and blow nitrogen gas at a rate of 1°C / min Raise the temperature to 90°C, add 10 mg of chloroplatinic acid dropwise, and keep the reaction for 5 hours. After the reaction, the solvent and low boilers were distilled off under reduced pressure, and cooled to room temperature to obtain Compound A with a yield of 96.7%. The reaction formula is as follows:

[0036]

[0037] S2. First, add 1.02mol N-methyliminodiacetic acid into the miniature reactor, add 2L solvent acetonitrile, stir to make it dissolve completely, add the compound A prep...

Embodiment 2

[0041]A mildew-resistant polyester with high washability, starting from terephthalic acid and ethylene glycol, after the esterification reaction of terephthalic acid and ethylene glycol, adding a modifier to participate in the polymerization reaction, Embedding modifiers to obtain modified anti-mildew polyester;

[0042] The preparation method of the mildew-resistant polyester with high washability specifically comprises the following steps:

[0043] The first step, esterification

[0044] Add 1mol of terephthalic acid and 1.2mol of ethylene glycol into the polymerization reactor, add 15g of esterification catalyst tetrabutyl titanate, turn on the heating, when the temperature reaches 180°C, turn on the stirring, at a speed of 70rpm / min Under stirring, carry out esterification reaction 50min;

[0045] The second step, aggregation

[0046] After the esterification reaction, continue to heat up to 250 ° C, add 0.22 mol modifier and 0.4 mol polyethylene glycol, then add 8 g of...

Embodiment 3

[0048] A mildew-resistant polyester with high washability, starting from terephthalic acid and ethylene glycol, after the esterification reaction of terephthalic acid and ethylene glycol, adding a modifier to participate in the polymerization reaction, Embedding modifiers to obtain modified anti-mildew polyester;

[0049] The preparation method of the mildew-resistant polyester with high washability specifically comprises the following steps:

[0050] The first step, esterification

[0051] Add 1mol of terephthalic acid and 1.4mol of ethylene glycol into the polymerization reactor, add 16g of esterification catalyst tetrabutyl titanate, turn on the heating, when the temperature reaches 190°C, turn on the stirring, at a speed of 60rpm / min Under stirring, carry out esterification reaction 40min;

[0052] The second step, aggregation

[0053] After the esterification reaction, continue to heat up to 255 ° C, add 0.25 mol modifier and 0.3 mol polyethylene glycol, then add 10 g ...

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Abstract

The invention discloses a mildew-resistant polyester with high washability and a preparation method thereof. The mildew-resistant polyester uses terephthalic acid and ethylene glycol as starting materials, and completes esterification in terephthalic acid and ethylene glycol. After the reaction, a modifier is added to participate in the polymerization reaction to obtain a modified mildew-resistant polyester; organic silicon and quaternary ammonium salts are introduced into the prepared mildew-resistant polyester in a chemically bonded manner, and N positive ions in the quaternary ammonium salts Combined with chemical bonds on the surface of the fiber, it can attract negatively charged fungi, bacteria, etc., to restrain the activity of bacteria, and enter into its cells through the cell membrane of bacteria, destroy the metabolism of enzymes in the cells and cause the cells to die, so as to achieve sterilization or inhibition The role of bacterial growth is precisely because N positive ions are combined in the form of chemical bonds on the surface of the fiber, which is not easy to fall off, has strong washability, and can maintain the antibacterial and antifungal properties of polyester fabrics for a long time.

Description

technical field [0001] The invention belongs to the technical field of fabrics, and in particular relates to a mildew-resistant polyester with high washability and a preparation method thereof. Background technique [0002] Textiles can absorb various nutrients in the air. Under suitable temperature and humidity conditions, microorganisms residing on textiles can reproduce and spread in large numbers, decompose and produce secretions, bring ammonia and other odorous substances, or form bacteria on fabrics. The mildew of textiles is very serious. Most of the bacteria will secrete various pigments, which will contaminate the textiles with red, blue, purple and black stains, seriously affecting the finishing effect and the quality of finished products. Harmful microorganisms can multiply rapidly under suitable environmental conditions and spread diseases, affecting people's health. With the development of social economy and the improvement of living standards, new market deman...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/695D01F6/84C07F7/08
CPCC07F7/081C07F7/0838C07F7/0879C07F7/089C08G63/6956D01F6/84
Inventor 杨双建龚琤琤
Owner 安徽深呼吸纺织科技有限公司
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