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Application of ionic liquid in polyethylene terephthalate composite fiber

A technology of polyethylene terephthalate and ethylene glycol phthalate, which is applied in the field of PET composite fiber membranes, and can solve the problems of fabric discoloration, long-spotted enzymes, and poor water absorption

Active Publication Date: 2014-10-01
ZHEJIANG JAVA SPECIALTY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the poor water absorption performance of PET fibers, the free water content on the surface is more, resulting in the growth rate of bacteria is higher than other natural fibers; moreover, PET fabrics usually need to be treated with substances that can be used as microbial nutrients during processing. The external environment is suitable, and it is easy to breed a variety of microorganisms, resulting in fabric discoloration, spotting enzymes, and odors, etc.
The antibacterial agents used in various post-treatment parts are not ideal in antibacterial effect.

Method used

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  • Application of ionic liquid in polyethylene terephthalate composite fiber
  • Application of ionic liquid in polyethylene terephthalate composite fiber
  • Application of ionic liquid in polyethylene terephthalate composite fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Step (1). Dry the PET in vacuum at 100°C for 72 hours;

[0061] Step (2). Add 20g of dried PET and 1g of commercially available organic antibacterial agent to 100g of trifluoroacetic acid in a mass ratio of 100:5, and magnetically stir for 4 hours at room temperature; Solutions of spinning precursors.

[0062] Step (3). First, suck 2 ml of the prepared electrospinning precursor solution into a 5 ml medical syringe syringe, connect the positive electrode of the high-voltage power supply to the spinning stainless steel needle, connect the negative electrode to aluminum foil, and place the aluminum foil at the horizontal position of the stainless steel needle 10 centimeters is used as a collecting plate, and the PET nanofiber film can be collected on the aluminum foil by providing a voltage of 15 kilovolts; the spinning is completed, and the power is turned off.

[0063] The PET nanofiber film prepared in Example 1 is a PET / organic antibacterial composite fiber film.

Embodiment 2

[0065] Step (1). Dry the PET in vacuum at 100°C for 72 hours;

[0066] Step (2). Add 20 g of dried PET and 1 g of silver nitrate solid to 100 g of trifluoroacetic acid in a mass ratio of 100:5, and magnetically stir for 4 hours at room temperature; after obtaining a homogeneous solution, add 2 g of solid lemon Sodium citrate, wherein the mass ratio of silver nitrate and sodium citrate is 1:2, magnetically stirred at room temperature for 4h, the solution of the electrospinning precursor was obtained.

[0067] Step (3). First, suck 2 ml of the prepared electrospinning precursor solution into a 5 ml medical syringe syringe, connect the positive electrode of the high-voltage power supply to the spinning stainless steel needle, connect the negative electrode to aluminum foil, and place the aluminum foil at the horizontal position of the stainless steel needle 10 centimeters is used as a collecting plate, and the PET nanofiber film can be collected on the aluminum foil by providing ...

Embodiment 3

[0070] Step (1). PET and 1-butyl-3-methylimidazolium hexafluorophosphate were vacuum-dried at 100°C for 72 hours;

[0071] Step (2). Add 20 g of dried PET and 1-butyl-3-methylimidazolium hexafluorophosphate to 100 g of trifluoroacetic acid in a mass ratio of 100:0.1, and stir magnetically at room temperature for 4 to 8 hours; After obtaining a uniform solution, a solution of the electrospinning precursor is obtained.

[0072] Step (3). First, suck 2 ml of the prepared electrospinning precursor solution into a 5 ml medical syringe syringe, connect the positive electrode of the high-voltage power supply to the spinning stainless steel needle, connect the negative electrode to aluminum foil, and place the aluminum foil at the horizontal position of the stainless steel needle 10 centimeters is used as a collecting plate, and the PET nanofiber film can be collected on the aluminum foil by providing a voltage of 15 kilovolts; the spinning is completed, and the power is turned off. ...

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Abstract

The invention discloses an application of an ionic liquid in polyethylene terephthalate composite fiber. The ionic liquid is taken as an antibiotic additive and applied to the polyethylene terephthalate composite fiber. The polyethylene terephthalate composite fiber with the added ionic liquid shows excellent inhibitory and bactericidal characteristics to staphylococcus aureus of gram-positive bacterium and escherichia coli of Gram-negative bacterium respectively. An antimicrobic polyethylene terephthalate composite fiber thin film provided by the invention can be applied to the fields of medical science, biology, environmental protection, spinning and the like.

Description

technical field [0001] The invention belongs to the technical field of textiles and relates to the application of ionic liquids in polyethylene terephthalate (PET) composite fibers. Antibacterial PET composite fiber membranes can be prepared by using spinning techniques through ionic liquids. Background technique [0002] In life, people will inevitably come into contact with various microorganisms such as bacteria and fungi. These microorganisms will grow and multiply rapidly under suitable environmental conditions, and spread diseases through contact, affecting people's health. In daily life, all kinds of textiles are a good place for these microorganisms to live, and they are also an important source of disease transmission. Human beings live surrounded by microorganisms. Fiber can absorb many microorganisms. If the environment is suitable, they will multiply rapidly and cause various harms to the human body. In recent years, the antibacterial properties of fiber produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10D04H1/4382
Inventor 徐力群李勇进邢晨阳管纪鹏
Owner ZHEJIANG JAVA SPECIALTY CHEM CO LTD
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