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Antibacterial polyester fiber and preparation method thereof

A polyester fiber and copolyester technology is applied in the field of antibacterial polyester fiber and its preparation, which can solve the problems of single polyester product structure and excess production capacity, and achieve good bacteriostatic effect, simple and environmentally friendly preparation process.

Inactive Publication Date: 2021-01-05
邓颖菁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyester products have problems such as single structure and overcapacity

Method used

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  • Antibacterial polyester fiber and preparation method thereof
  • Antibacterial polyester fiber and preparation method thereof
  • Antibacterial polyester fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Weigh 5-(1H-1,2,4-triazol-1-yl) isophthalic acid, ethylene glycol, and antimony acetate into the reaction kettle, and feed N 2 , control the reaction pressure at 0.40MPa, carry out the esterification reaction at 200°C, stop the reaction when the esterification rate reaches 82%, and obtain 5-(1H-1,2,4-triazol-1-yl)isophthalic acid Ethylene formate.

[0029] The molar ratio of the 5-(1H-1,2,4-triazol-1-yl)isophthalic acid and ethylene glycol is 1:2.2, and the consumption of antimony acetate is 5-(1H-1,2 , 4-triazol-1-yl) 0.3% (mass) of isophthalic acid.

[0030] (2) Weigh 5-(1H-1,2,4-triazol-1-yl) ethylene isophthalate, benzoic acid, ethylene glycol, antimony acetate, and trimethyl phosphate into the reactor, Access to N 2 , when the temperature rises to 240°C, start the vacuum pump, control the vacuum degree within 1MPa, carry out the transesterification reaction for 0.5h, raise the temperature to 270°C, the vacuum degree is lower than 50Pa, start the polycondensa...

Embodiment 2

[0038] The difference with Example 1 is:

[0039] In step (2), the feed ratio of benzoic acid, 5-(1H-1,2,4-triazol-1-yl) ethylene isophthalate, ethylene glycol is 100:36:120, antimony acetate and The mass of trimethyl phosphate is respectively 0.03% (mass) and 0.05% (mass) of benzoic acid; the transesterification temperature is 255°C, and the polycondensation temperature is 280°C.

[0040] Step (3) The mixing volume ratio of the copolyester hexafluoroisopropanol solution and the copper sulfate pentahydrate solution is 6:1.

Embodiment 3

[0042] The difference with Example 1 is:

[0043] In step (2), the feed ratio of benzoic acid, 5-(1H-1,2,4-triazol-1-yl) ethylene isophthalate, ethylene glycol is 100:55:120, antimony acetate and The mass of trimethyl phosphate is 0.05% (mass) of benzoic acid; the transesterification temperature is 260°C, the reaction time is 1h, and the reaction pressure is 0.8MPa; the polycondensation temperature is 280°C, and the reaction time is 1.5h.

[0044] Step (3) The mixing volume ratio of the copolyester hexafluoroisopropanol solution and the copper sulfate pentahydrate solution is 5:1.

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Abstract

The invention discloses an antibacterial polyester fiber and a preparation method thereof. The preparation method comprises the steps that 5-(1H-1,2,4-triazole-1-based) isophthalic acid serves as a third monomer and is subjected to ester exchange and condensation polymerization with terephthalic acid and ethylene glycol to prepare copolyester, and the copolyester is subjected to electrostatic spinning after being loaded with Cu(II) in a solution to prepare the antibacterial polyester fiber. The antibacterial polyester fiber has a good antibacterial effect on escherichia coli and staphylococcusaureus, can still keep a good effect after being washed with water, and has reproducibility; in addition, the preparation technology and the process are simple and environment-protecting, and have apotential application prospect.

Description

technical field [0001] The invention belongs to the field of synthetic fibers, and in particular relates to an antibacterial polyester fiber and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) has the advantages of high strength and good thermal performance. The annual output is huge, accounting for more than 80% of the annual output of chemical fiber. However, polyester products have problems such as single structure and overcapacity. Therefore, the research and development of PET-based new polyester and its fibers can not only make use of excess production capacity, but also increase the added value of PET and its products. Today's functional textile materials are a research hotspot. When polyester is used as a textile material, it will be in close contact with human skin, and people hope that it has some special functions. There are many bacteria distributed on the surface of the human skin. Under normal circumstances, the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/685C08G63/78C08G63/86
CPCD01F6/92D01F1/103C08G63/6856C08G63/78C08G63/866
Inventor 邓颖菁
Owner 邓颖菁