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A kind of preparation method of polyester fiber with antibacterial function

A polyester fiber and functional technology, applied in the field of polyester fiber preparation, can solve problems such as shedding and affecting the mechanical properties of materials, and achieve the effects of permanent antibacterial, broad market prospects, and simple process methods

Active Publication Date: 2017-02-01
QUANGANG PETROCHEM RES INST OF FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses surface modifiers to modify the anion mineral powder to improve the compatibility between the anion mineral powder and polyester, but the anion mineral powder is only combined with the polymer macromolecules through intermolecular force, and does not enter the molecule. In the chain, it is easy to fall off from the surface of the polymer, and will affect the mechanical properties of the material to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Preparation of anion powder modified by diphenylmethane diisocyanate (MDI)

[0020] Add 100 parts of negative ion powder into the container, stir and heat up to 120°C for 30 minutes, then add 1 part of diphenylmethane diisocyanate (MDI) under high-speed stirring, and continue to react at 100°C for 30 minutes to obtain diphenyl Methylene diisocyanate (MDI) modified negative ion powder, spare.

[0021] 2. Preparation of polyester fiber

[0022] Add 100 parts of PTA, 40 parts of ethylene glycol, and 0.2 parts of a hydrolysis-resistant titanium / silicon oxide copolymer (Ti / Si atomic ratio is 9:1) into the esterification reaction kettle, stir evenly React at a temperature of 200°C for 30 minutes, continue to heat up to 250°C for 30 minutes, then add 1 part of anion powder modified by diphenylmethane diisocyanate (MDI) and react for 4 hours at a vacuum of 30Pa until the acid value is less than 0.5mgKOH / g to obtain polyester resin, and then spin to obtain polyester fiber....

Embodiment 2

[0024] 1. Preparation of xylylene diisocyanate (XDI) modified negative ion powder

[0025] Add 100 parts of negative ion powder into the container, stir and raise the temperature to 120°C for 50 minutes, then add 3 parts of xylylene diisocyanate (XDI) under high-speed stirring, and continue to react at 110°C for 50 minutes to obtain benzene Dimethylene diisocyanate (XDI) modified negative ion powder, spare.

[0026] 2. Preparation of polyester fiber

[0027] Add 100 parts of PTA, 50 parts of ethylene glycol, and 1 part of hydrolysis-resistant titanium / silicon oxide copolymer (Ti / Si atomic ratio is 9:1) into the esterification reaction kettle, stir evenly React at a temperature of 220°C for 50 minutes, continue to heat up to 250°C for 50 minutes, then add 3 parts of xylylene diisocyanate (XDI) modified negative ion powder and react for 4 hours at a vacuum of 70Pa until the acid value is less than 0.5mgKOH / g to obtain polyester resin, and then spin to obtain polyester fiber. ...

Embodiment 3

[0029] 1. Preparation of anion powder modified by p-phenylene diisocyanate (PPDI)

[0030] Add 100 parts of negative ion powder into the container, stir and heat up to 120°C for 60 minutes, then add 5 parts of p-phenylene diisocyanate (PPDI) under high-speed stirring, and continue to react at 120°C for 60 minutes to obtain p-phenylene diisocyanate (PPDI) I modified negative ion powder, standby.

[0031] 2. Preparation of polyester fiber

[0032] Add 100 parts of PTA, 60 parts of ethylene glycol, and 2 parts of hydrolysis-resistant titanium / silicon oxide copolymer (Ti / Si atomic ratio is 9:1) into the esterification reactor, stir evenly React at a temperature of 230°C for 60 minutes, continue to heat up to 260°C for 60 minutes, then add 5 parts of p-phenylene diisocyanate (PPDI) modified negative ion powder and react for 5 hours at a vacuum of 100 Pa until the acid value is less than 0.5mgKOH / g to obtain Polyester resin is spun to obtain polyester fiber.

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PUM

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Abstract

The invention provides a preparation method of polyester fiber with an antibacterial function. The preparation method specifically comprises steps as follows: (1) preparation of isocyanate-modified negative-ion powder: 100 parts of negative-ion mineral powder are added to a container and stirred and heated to the temperature of 120 DEG C for 30-60 min, then 1-5 parts of isocyanate are added while high-speed stirring, the mixture reacts continuously at the temperature of 100-120 DEG C for 30-60 min, and the isocyanate-modified negative-ion powder is obtained for use; (2) preparation of the polyester fiber: 100 parts of PTA, 40-60 parts of ethylene glycol and 0.2-2 parts of a compound titanium catalyst are added to an esterification kettle and evenly stirred, the mixture firstly reacts at the esterification temperature of 200-230 DEG C for 30-60 min and is continuously heated to the temperature of 250-260 DEG C for a reaction for 30-60 min, then 1-5 parts of the isocyanate-modified negative-ion powder are added, the mixture reacts at the vacuum degree of 30-100 Pa for 4-5 h until the acid value is smaller than 0.5 mgKOH / g, polyester resin is obtained, and the polyester fiber is obtained through spinning. The polyester fiber has the permanent antibacterial function.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a preparation method of polyester fiber with antibacterial function. Background technique [0002] Polyethylene terephthalate (PET, hereinafter referred to as polyester) and its products have been favored by people since they have many excellent properties. In the past 10 years, due to the rapid development of polyester in the fiber and non-fiber fields, the demand has been expanding day by day. Therefore, the rapid development of polyester production in the world, especially in Asia, also promotes and drives the upstream and downstream of polyester. The growth of the industry has made polyester a large variety of synthetic materials. [0003] The polyester fiber produced in large quantities in industrialization is made of polyethylene terephthalate, and the trade name in China is polyester. Polyester has excellent wrinkle resistance, elasticity and dimensional stability, li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/62C08G63/698C08G63/183
Inventor 陈登龙白欣伍毓强杜鹏飞
Owner QUANGANG PETROCHEM RES INST OF FUJIAN NORMAL UNIV
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