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Copper-based antimicrobial fiber and preparation method thereof

An antibacterial fiber, copper-based technology, applied in the fiber field, can solve the problems of silver-based antibacterial agents easy to change color, high price, loss of antibacterial activity, etc.

Active Publication Date: 2016-06-15
CTA HIGH TECH FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existence of silver-based antibacterial agents has the problems of easy discoloration and high price. In addition, Ag + Can react with Cl in aqueous medium - 、HS - , S 2- and SO4 2- and other anions react to form water-insoluble compounds, thus losing antibacterial activity

Method used

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  • Copper-based antimicrobial fiber and preparation method thereof
  • Copper-based antimicrobial fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1) Preparation of PBT powder

[0052] Add PBT slices with a viscosity of 1.2 to the mill, adjust the gap between the cutter discs to 1.5mm, use 9°C cooling water, and grind at 3800rpm to obtain PBT powder with a particle size of 40-60 mesh. The bulk density of the PBT powder is 0.70g / ml;

[0053] 2) Coupling agent treatment of copper-based antibacterial agents

[0054] Mix 0.5kg of silane coupling agent A-186 with 0.5kg of ethanol and add it to 30kg of copper oxide powder with a particle size of 300-700nm, and stir for 30min at 400rpm to obtain the copper system treated with the coupling agent Antibacterial agents;

[0055] 3) Mix the antibacterial masterbatch ingredients evenly

[0056] Add 31kg of copper-based antibacterial agent treated with coupling agent, 0.5kg of IrganoxMD1024, 0.5kg of Irgafox168, 0.15kg of polyethylene wax, 0.1kg of barium stearate and 67.75kg of PBT powder into a high-speed mixer, and stir at a stirring speed of 475rpm After 5 minutes, adjust...

Embodiment 2

[0068] 1) Preparation of PBT powder

[0069] Add the PBT slices with a viscosity of 0.8 to the mill, adjust the gap between the cutter heads to 1.5mm, use 9°C cooling water, and grind at 3800rpm to obtain PBT powder with a particle size of 60-80 mesh. The bulk density of the PBT powder is 0.75g / ml;

[0070] 2) Coupling agent treatment of copper-based antibacterial agents

[0071] Mix 1.5kg of silane coupling agent A-1100 with 1.5kg of ethanol and add it to 25kg of copper chloride powder with a particle size of 300-700nm, and stir at 400rpm for 40min to obtain the copper system treated with the coupling agent Antibacterial agents;

[0072] 3) Mix the antibacterial masterbatch ingredients evenly

[0073] Add 28kg of copper-based antibacterial agent treated with coupling agent, 1kgIrganoxMD1024, 1kgIrgafox168, 1kg polyethylene wax, 0.5kg calcium stearate and 68.5kgPBT powder into a high-speed mixer, and stir for 1 minute at a stirring speed of 500rpm , adjust the stirring spe...

Embodiment 3

[0085] 1) Preparation of PBT powder

[0086] Add the PBT slices with a viscosity of 1.3 to the disc mill, adjust the gap between the cutter discs to 1.5mm, use 9°C cooling water, and grind at 3800rpm to obtain PBT powder with a particle size of 40-60 mesh , the bulk density of the PBT powder is 0.72g / ml;

[0087] 2) Coupling agent treatment of copper-based antibacterial agents

[0088] Mix 0.1kg of titanate coupling agent KR-38S with 0.1kg of ethanol and add it to 1.5kg of copper nitrate powder with a particle size of 300-700nm, stir at 500rpm for 20min to obtain the coupling agent treated copper antibacterial agent;

[0089] 3) Mix the antibacterial masterbatch ingredients evenly

[0090] Add 1.7kg of copper-based antibacterial agent treated with coupling agent, 0.05kg of Irganox1010, 0.05kg of IrganoxB225, 0.1kg of polyethylene wax, 0.1kg of barium stearate and 98kg of PBT powder into a high-speed mixer, and stir at a stirring speed of 500rpm After 5 minutes, adjust the ...

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Abstract

The present invention provides copper-based antimicrobial fiber and a preparation method thereof, a cross-section of the copper-based antimicrobial fiber has a skin-core structure, a skin layer comprises an antimicrobial agent and carrier resin, a core layer comprises a fiber-forming polymer, and the preparation method of the copper-based antimicrobial fiber comprises the following steps: mixing evenly carrier resin powder and antimicrobial masterbatch ingredients of copper-based antimicrobial agent powder to obtain mixed powder; adding the mixed powder into a twin-screw extruder for extruding to obtain antimicrobial masterbatch; compounding and spinning the antimicrobial masterbatch as the skin layer and the fiber-forming polymer as the core layer to obtain the copper-based antimicrobial fiber. The beneficial effects are as follows: the copper-based antimicrobial fiber produced by the method has good spinnability, cross-sectional shape uniformity, long spinning pack replacement cycle, good antimicrobial effect and good durability, and has good antimicrobial effect especially on fungi.

Description

technical field [0001] The invention belongs to the field of fibers, and in particular relates to a copper-based antibacterial fiber with a skin-core structure and a preparation method thereof. Background technique [0002] Because some bacteria, fungi and other microorganisms can cause great harm to human health, people have long begun to study how to kill and inhibit the harm of microorganisms. With the development of science and technology and the improvement of people's living standards, people's requirements for hygiene and health are getting higher and higher, and antibacterial products are also developing rapidly. In today's society, there are more and more opportunities or occasions for contact bacterial infection caused by environmental pollution and frequent personal turnover, and people pay more and more attention to environmental hygiene and self-health. In recent years, people have gradually considered the combination of medical care and daily textiles, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/12D01F8/06D01F1/10D01D5/34D01D5/08D01D5/30
Inventor 焦红娟王颢王双燕刘建兵李睿高扬曹占理赵静波杨德林王又五张德良
Owner CTA HIGH TECH FIBER
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