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CN-122013418-A - High-strength nano composite antibacterial fabric and preparation method thereof

CN122013418ACN 122013418 ACN122013418 ACN 122013418ACN-122013418-A

Abstract

The invention discloses a high-strength nano composite antibacterial fabric, which comprises a base fabric and a modified sol-gel nano layer, wherein the modified sol-gel nano layer is compounded with the base fabric and smeared to form the nano composite antibacterial fabric, the modified sol-gel nano layer comprises titanium dioxide sol, nano zinc oxide and silver antibacterial agents, the raw materials of the base fabric comprise chitin fiber, cotton fiber and Coolplus fiber, the raw materials of the base fabric are proportioned into 10% of chitin fiber, 50% of Coolplus fiber, 40% of cotton fiber and 16.7 tex% of yarn linear density, and compared with the prior art, the invention has the advantages that a layer of uniform and firm porous nano antibacterial film is formed on the surface of the fabric, so that staphylococcus aureus and pathogenic escherichia coli can be effectively killed, and the double-layer fabric formed by combining the chitin fiber and the Coolplus fiber has good antibacterial, antibacterial and antibacterial functions and rapid moisture absorption and moisture-guiding functions.

Inventors

  • SHEN BO
  • Tang Caiding

Assignees

  • 杭州勤想实业有限公司

Dates

Publication Date
20260512
Application Date
20260206

Claims (5)

  1. 1. The nano composite antibacterial fabric with high strength is characterized by comprising a base fabric and a modified sol-gel nano layer, wherein the modified sol-gel nano layer is compounded and smeared with the base fabric to form the nano composite antibacterial fabric, the modified sol-gel nano layer comprises titanium dioxide sol, nano zinc oxide and silver antibacterial agent, the raw materials of the base fabric comprise chitin fiber, cotton fiber and Coolplus fiber, the raw materials of the base fabric comprise 10% of chitin fiber, 50% of Coolplus fiber, 40% of cotton fiber and 16.7 tex of yarn linear density.
  2. 2. The high-strength nano composite antibacterial fabric according to claim 1, wherein the preparation method of the titanium dioxide sol is characterized in that the nano titanium dioxide sol is prepared by adopting a sol-gel method, butyl titanate is used as a raw material, glacial acetic acid is used as an inhibitor, and the reactant ratio of butyl titanate to ethanol to water is glacial acetic acid=1:9:3:10.
  3. 3. The high-strength nano composite antibacterial fabric according to claim 1, wherein the preparation method of the nano zinc oxide is characterized in that a direct precipitation method is adopted to prepare nano Zn0, the concentration of zinc sulfate is 1.0mol.L -1 , the molar ratio of ammonium bicarbonate to zinc sulfate is 2:1, and stirring reaction is carried out at 80 ℃ for 2:2 h.
  4. 4. The high-strength nano composite antibacterial fabric as set forth in claim 1, wherein the preparation method of the silver antibacterial agent comprises immersing carrier silicon dioxide in silver salt solution, stirring at 50deg.C for 2h, filtering and washing.
  5. 5. The method for preparing the high-strength nano composite antibacterial fabric according to claim 1, which is characterized by comprising the following steps: Firstly, taking chitin and cotton blended yarns as an inner layer of a fabric, taking Coolplus spun yarns as an outer layer of the fabric, respectively weaving variable weft plain stitch on two needle beds by two raw materials to form two pieces of fabric which are not connected with each other, and connecting the two pieces of fabric which are not connected with each other by using a tuck coil to form a double-layer fabric with two sides woven by the two raw materials respectively; And step two, combining nano zinc oxide and silver antibacterial agents, then carrying out surface modification by using a titanate coupling agent, then adding the surface modified nano zinc oxide and silver antibacterial agents into titanium dioxide sol, stirring for 24 hours, uniformly coating the surface modified nano zinc oxide and silver antibacterial agents on the double-layer fabric in the step one, forming a layer of firm porous nano antibacterial film on the surface of the fabric, and drying to obtain the nano composite antibacterial fabric.

Description

High-strength nano composite antibacterial fabric and preparation method thereof Technical Field The invention relates to the technical field of antibacterial fabrics, in particular to a high-strength nano composite antibacterial fabric and a preparation method thereof. Background The fabric is very popular and used by consumers, but the existing fabric has the defects of poor moisture absorption and air permeability, uncomfortable wearing, poor friction resistance and the like, and the artificial fiber fabric is damaged to different degrees due to improper use in the use process or improper washing in the washing process. Antibacterial modification of the fabric is a common means for inhibiting the growth of bacteria, dust mites and the like. However, the conventional antibacterial agents are not resistant to water washing, so that the antibacterial activity is not durable, and in addition, the clothing properties of the fabric, such as deterioration of moisture permeability and air permeability, deterioration of mechanical properties, etc., are often affected by the use of these antibacterial agents for modifying the fabric. However, the existing antibacterial fabric cannot meet the demands of people in terms of tensile strength, wear resistance, air permeability and the like, so that it is important how to improve the properties of the fabric while the antibacterial performance of the fabric is improved. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. Disclosure of Invention The invention aims to overcome the technical defects and provide the nano composite antibacterial fabric with high strength and the preparation method thereof. In order to solve the problems, the technical scheme of the invention is that the nano composite antibacterial fabric with high strength comprises a base fabric and a modified sol-gel nano layer, wherein the modified sol-gel nano layer is compounded with the base fabric and smeared to form the nano composite antibacterial fabric, the modified sol-gel nano layer comprises titanium dioxide sol, nano zinc oxide and silver antibacterial agent, the raw materials of the base fabric comprise chitin fiber, cotton fiber and Coolplus fiber, the raw materials of the base fabric comprise 10% of chitin fiber, 50% of Coolplus fiber, 40% of cotton fiber and 16.7 tex of yarn linear density. Preferably, the preparation method of the titanium dioxide sol comprises the following steps of preparing the nano titanium dioxide sol by a sol-gel method, taking butyl titanate as a raw material and glacial acetic acid as an inhibitor, wherein the reactant ratio of butyl titanate to ethanol to water to glacial acetic acid=1:9:3:10. Preferably, the preparation method of the nano zinc oxide comprises the following steps of preparing nano Zn0 by adopting a direct precipitation method, wherein the concentration of zinc sulfate is 1.0mol.L < -1 >, the molar ratio of ammonium bicarbonate to zinc sulfate is 2:1, and stirring and reacting at 80 ℃ for 2h. Preferably, the silver-based antibacterial agent is prepared by immersing carrier silicon dioxide in silver salt solution, stirring for 2h at 50 ℃ and filtering and washing. The application also discloses a preparation method of the high-strength nano composite antibacterial fabric, which comprises the following steps: Firstly, taking chitin and cotton blended yarns as an inner layer of a fabric, taking Coolplus spun yarns as an outer layer of the fabric, respectively weaving variable weft plain stitch on two needle beds by two raw materials to form two pieces of fabric which are not connected with each other, and connecting the two pieces of fabric which are not connected with each other by using a tuck coil to form a double-layer fabric with two sides woven by the two raw materials respectively; And step two, combining nano zinc oxide and silver antibacterial agents, then carrying out surface modification by using a titanate coupling agent, then adding the surface modified nano zinc oxide and silver antibacterial agents into titanium dioxide sol, stirring for 24 hours, uniformly coating the surface modified nano zinc oxide and silver antibacterial agents on the double-layer fabric in the step one, forming a layer of firm porous nano antibacterial film on the surface of the fabric, and drying to obtain the nano composite antibacterial fabric. Compared with the prior art, the invention has the advantages that: 1. According to the invention, nanometer antibacterial materials with different antibacterial mechanisms are fixed into a common fabric by adopting a nanometer combined sterilization technology, a layer of uniform and firm porous nanometer antibacterial film is formed on the surface of the fabric, so t