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Silver-carried antibacterial finishing agent and preparation method thereof

A silver-loaded antibacterial and finishing agent technology, used in fiber treatment, textiles and papermaking, etc., can solve the problems of high cost, mildew resistance, weak antifungal effect, easy discoloration, etc. uniform effect

Inactive Publication Date: 2011-09-14
洪桂焕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ionic antibacterial agent mainly loads metal ions with antibacterial effect on a certain carrier, and exerts antibacterial effect by slowly releasing metal ions, but its disadvantages are also obvious, such as weak anti-mildew and anti-fungal effects, and high cost. Easy to change color, etc.; photocatalytic antibacterial agents mainly achieve antibacterial purposes through catalytic oxidation in the presence of ultraviolet rays and oxygen, but it is necessary to solve the uniform dispersion of nano-antibacterial agents in the finishing liquid and the combination with fibers

Method used

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  • Silver-carried antibacterial finishing agent and preparation method thereof
  • Silver-carried antibacterial finishing agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A silver-loaded antibacterial finishing agent, which is a complex formed by amino group-containing polyurethane and acrylate copolymer emulsion and silver salt, wherein 184 parts of amino group-containing polyurethane and acrylate copolymer emulsion, 8 parts of silver salt.

[0042] Wherein, the silver salt is silver nitrate.

[0043] The preparation method of the above-mentioned silver-loaded antibacterial finishing agent comprises the following steps:

[0044] Silver nitrate was added to the polyurethane and acrylate copolymer emulsion containing amine groups, and stirred at 18°C ​​for 2 hours to fully complex the silver ions with the amine groups to obtain a silver-loaded antibacterial finishing agent.

[0045] The concrete preparation steps of the polyurethane and acrylate copolymer emulsion containing amino group are as follows:

[0046] 1) A mixture of acrylate monomers and alkenylamine monomers, and an initiator dissolved in acetone to form an initiator solution. ...

Embodiment 2

[0053] A silver-loaded antibacterial finishing agent, which is a complex formed by amino group-containing polyurethane and acrylate copolymer emulsion and silver salt, wherein 212 parts of amino group-containing polyurethane and acrylate copolymer emulsion, and 11 parts of silver salt.

[0054] Wherein, the silver salt is silver nitrate.

[0055] The preparation method of the above-mentioned silver-loaded antibacterial finishing agent comprises the following steps:

[0056] Silver nitrate was added to the polyurethane and acrylate copolymer emulsion containing amine groups, and stirred at 19°C for 2 hours to fully complex the silver ions with the amine groups to obtain a silver-loaded antibacterial finishing agent.

[0057] The concrete preparation steps of the polyurethane and acrylate copolymer emulsion containing amino group are as follows:

[0058] 1) A mixture of acrylate monomers and alkenylamine monomers, and an initiator dissolved in acetone to form an initiator solut...

Embodiment 3

[0065] A silver-loaded antibacterial finishing agent, which is a complex formed by amino group-containing polyurethane and acrylate copolymer emulsion and silver salt, wherein 228 parts of amino group-containing polyurethane and acrylate copolymer emulsion, 16 parts of silver salt.

[0066] Wherein, the silver salt is silver nitrate.

[0067] The preparation method of the above-mentioned silver-loaded antibacterial finishing agent comprises the following steps:

[0068] Silver nitrate was added to the polyurethane and acrylate copolymer emulsion containing amine groups, and stirred at 20°C for 2 hours to fully complex the silver ions with amine groups to prepare a silver-loaded antibacterial finishing agent.

[0069] The concrete preparation steps of the polyurethane and acrylate copolymer emulsion containing amino group are as follows:

[0070] 1) A mixture of acrylate monomers and alkenylamine monomers, and an initiator dissolved in acetone to form an initiator solution. A...

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Abstract

The invention relates to a silver-carried antibacterial finishing agent and a preparation method thereof, which are mainly applied to a textile coating. The preparation method comprises the following steps of: reacting isocyanate and a polyalcohol compound to generate an isocyanate-terminal prepolymer, and reacting the isocyanate-terminal prepolymer and a hydroxyl-containing alkenyl monomer to form an alkenyl-containing polyurethane prepolymer; and copolymerizing the prepared polyurethane prepolymer, an acrylate monomer and an alkenyl amine monomer to generate amine-containing polyurethane-acrylate copolymer emulsion, and adding silver nitrate and amino group into the emulsion to form a complex and then generate the silver-carried long-lasting antibacterial finishing agent.

Description

technical field [0001] The invention relates to a silver-loaded antibacterial finishing agent and a preparation method thereof, belonging to the field of textile chemistry. Background technique [0002] Antibacterial agents currently used in textiles are generally divided into three categories: natural antibacterial agents, organic antibacterial agents and inorganic antibacterial agents. [0003] Organic antibacterial agents are mainly synthetic organic products such as phenol ethers, phenols, biguanides, and isothiazoles. Poor, short duration of efficacy and other shortcomings. [0004] Natural antibacterial agents are natural plant extracts, such as mustard extract, green mustard essential oil, tea polyphenols, etc. It has high antibacterial efficiency, safety and non-toxicity, but has poor heat resistance, short duration of drug effect, and difficult processing. Large-scale commercialization has not been achieved. In addition, chitosan and its derivatives have been wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564C08F290/06C08F8/42C08G18/67
Inventor 洪桂焕
Owner 洪桂焕
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