A kind of antibacterial material and preparation method thereof

A technology of antibacterial materials and mesoporous materials, which is applied in the manufacture of rayon, one-component polyester rayon, one-component polyamide rayon, etc., can solve the complicated preparation process, long spinning cycle, limited metal Ion load content and other issues, to achieve the effect of stable and durable performance, stable performance and no discoloration

Active Publication Date: 2018-10-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned invention patents all adopt the metal ion replacement method to load silver ions in the zirconium phosphate matrix, and the preparation process is relatively complicated, which limits the increase of the metal ion loading content.
[0004] In the field of preparation of antibacterial polymer fibers, the invention patent CN 102691129 B discloses an antibacterial polyester fiber and its production method and its application. The antibacterial component is mixed with polyester resin to prepare master batches, and then melt-spun with polyester resin , long spinning cycle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An antibacterial material comprises a polyester matrix in which silver-loaded mesoporous zirconium phosphate nanopowders are dispersed. The preparation method of above-mentioned antibacterial material is:

[0037] (1) Add 100g of mesoporous zirconium phosphate nanopowder (mesoporous size is 4-15nm, particle size is 200-800nm), 3g of pentaerythritol tetramercaptoacetate into 100mL of chloroform, airtight ultrasonic dispersion at room temperature (ultrasonic frequency: 40KHz) for 2 hours; then add 20g of silver nitrate and stir for 24 hours at a rotational speed of 500r / min. The chloroform solvent was removed by spray drying, and then the obtained powder was calcined at 1200°C for 3 hours to obtain a silver-loaded mesoporous zirconium phosphate nanopowder with a diameter of 200-800nm ​​and a silver-loaded mass content of 8%. body.

[0038] (2) Add 200g of silver-loaded mesoporous zirconium phosphate nanopowder, 540g of purified terephthalic acid, 260g of ethylene glycol...

Embodiment 2

[0042] An antibacterial material comprises a polyester matrix in which silver-loaded mesoporous zirconium phosphate nanopowders are dispersed. The preparation method of above-mentioned antibacterial material is:

[0043](1) Add 100g of mesoporous zirconium phosphate nanopowder (mesoporous size is 4-15nm, particle size is 200-800nm), 3g of pentaerythritol tetramercaptoacetate into 100mL of chloroform, airtight ultrasonic dispersion at room temperature (ultrasonic frequency: 40KHz) for 2 hours; then add 20g of silver nitrate and stir at 500r / min for 24 hours. The chloroform solvent was removed by spray drying, and then the obtained powder was calcined at 1200°C for 3 hours to obtain silver-loaded mesoporous zirconium phosphate nanopowder with a diameter of 300-600nm and a silver-loaded mass content of 8%. body.

[0044] (2) Add 60g of silver-loaded mesoporous zirconium phosphate nanopowder, 634.5g of purified terephthalic acid, 305.5g of ethylene glycol, and 0.2g of ethylene g...

Embodiment 3

[0047] An antibacterial material comprises a polyester matrix in which silver-loaded mesoporous zeolite nanopowders are dispersed. The preparation method of above-mentioned antibacterial material is:

[0048] (1) Add 100g of nano-zeolite (pore size 5-15nm, particle size 300-700nm), 6g quaternary 1,3-dimercaptopropane into 100mL of dichloromethane, and disperse with airtight ultrasonic at room temperature (ultrasonic frequency: 40KHz) for 0.5 hours; then add 10 g of silver nitrate and stir at 500 r / min for 24 hours. The dichloromethane solvent was removed by spray drying, and then the obtained powder was calcined at 400°C for 1 hour to obtain a silver-loaded mesoporous zeolite nanopowder with a diameter of 250-700 nm and a silver-loaded mass content of 4%. .

[0049] (2) Melt and blend silver-loaded mesoporous zeolite nanopowder and fiber-grade polyethylene terephthalate (intrinsic viscosity, 0.675-0.682dL / g) in a mass ratio of 1:4 through a twin-screw granulator Granulation...

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Abstract

Provided are an antibacterial material and method for preparation thereof, comprising a polymer matrix; a silver-containing non-metallic mesoporous material is distributed within the polymer matrix. The method for preparing the antibacterial material comprises: preparing a silver-containing non-metallic mesoporous material; subjecting the silver-containing non-metallic mesoporous material and a starting material containing a polymer monomer to in situ polymerization and melt direct spinning, or blending and spinning products of polymerization to prepare an antibacterial fiber containing a silver-containing non-metallic mesoporous material; or blending and pelletizing the silver-containing non-metallic mesoporous material and a polymer material, and melt-spinning to prepare an antibacterial fiber containing a silver-containing non-metallic mesoporous material; the antibacterial material has a long-lasting antibacterial effect.

Description

technical field [0001] The invention belongs to the field of preparation of antibacterial agents and antibacterial fibers, and in particular relates to an antibacterial material and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the improvement of living standards, people's awareness of the safety protection of the living environment has increased. Among them, coatings with antibacterial function, antibacterial plastic daily necessities, antibacterial clothing and home textiles have all received extensive attention. Especially in terms of safety protection in contact with the skin, antibacterial and deodorant are particularly important. At present, the types of antibacterial agents include organic antibacterial agents, organometallic antibacterial agents, compound antibacterial agents, nano-metal antibacterial agents, and inorganic powder-supported metal antibacterial agents. [0003] Among the above-mentioned...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10D01F6/62D01F6/90D01F6/92D01F8/06D01F8/14D01F8/16
CPCD01F1/10D01F6/62
Inventor 朱美芳相恒学陈伟夏维孙宾周家良
Owner DONGHUA UNIV
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