Search

CN-122013515-A - Halogen-containing amine antibacterial fabric finishing liquid, antibacterial fabric, and preparation method and application thereof

CN122013515ACN 122013515 ACN122013515 ACN 122013515ACN-122013515-A

Abstract

The invention discloses an antimicrobial fabric finishing liquid containing halogen amine, an antimicrobial fabric, a preparation method and application thereof, and relates to the technical field of fabric finishing liquid. Soaking the textile in a finishing liquid for heating reaction, then immersing the textile in a dimethylamine borane aqueous solution for standing reaction, and drying to obtain the antibacterial textile, wherein the finishing liquid comprises an antibacterial halamine siloxane derivative, silver nitrate and water, and the structural formula of the antibacterial halamine siloxane derivative is as follows The antibacterial silane derivative containing halogen amine in the antibacterial fabric finishing liquid is hydrolyzed and then reacts with hydroxyl on the surface of the fabric, so that the modification provides a broad-spectrum and efficient antibacterial effect on the surface of the fabric, silver ions are bonded on the surface of the fabric, dimethylamine borane is adopted to reduce the silver ions into nano silver particles, the efficient antibacterial rate is achieved through synergistic antibacterial effect of halogen amine and nano silver, and the antibacterial rate of the fabric after washing is still maintained at a higher level.

Inventors

  • HU NANNAN
  • ZHENG WENFU
  • ZOU WENXIN
  • Ye Liwan

Assignees

  • 广东粤港澳大湾区国家纳米科技创新研究院

Dates

Publication Date
20260512
Application Date
20241108

Claims (10)

  1. 1. The halamine antibacterial fabric finishing liquid is characterized by comprising 8-15 vt percent of organic solution containing antibacterial halamine siloxane derivatives, 0.1-0.5mol/L of silver nitrate and the balance of water; The concentration of the antibacterial halamine siloxane derivative in the organic solution containing the antibacterial halamine siloxane derivative is 200-400g/L, and the structural formula of the antibacterial halamine siloxane derivative is
  2. 2. A haloamine antimicrobial fabric finishing liquor as set forth in claim 1, wherein the organic solvent in the organic solution containing the antimicrobial haloamine siloxane derivative is N, N-dimethylformamide.
  3. 3. A haloamine antimicrobial fabric finishing liquor according to claim 1, wherein the process for preparing the antimicrobial haloamine-containing silicone derivative comprises the steps of: (1) Dissolving 5, 5-dimethyl hydantoin and sodium hydroxide in a solvent, stirring until the 5, 5-dimethyl hydantoin and sodium hydroxide are completely dissolved, and distilling under reduced pressure until the solvent is completely volatilized to obtain 5, 5-dimethyl hydantoin sodium salt; (2) Dissolving 5, 5-dimethyl hydantoin sodium salt in an organic solvent, stirring and dissolving, taking 3-chloropropyl triethoxysilane to slowly dropwise add in a syringe, filtering after the reaction is finished to remove insoluble substances, and obtaining an N, N-dimethylformamide solution containing the antibacterial haloamine siloxane derivative.
  4. 4. A haloamine antimicrobial fabric finishing liquor according to claim 1, wherein in the process for preparing the antimicrobial haloamine-containing silicone derivative, at least one of the following a) -g) is satisfied: a) In the step (1), the molar ratio of the 5, 5-dimethyl hydantoin to the sodium hydroxide is 1 (1-1.05); b) In step (1), 1mol of the 5, 5-dimethylhydantoin is added with 500-1000mL of solvent A; c) In step (1), the solvent is absolute ethanol; d) In the step (2), the molar ratio of the 5, 5-dimethyl hydantoin sodium salt to the 3-chloropropyl triethoxysilane is (1-1.5): 1; e) In step (2), 1mol of the 5, 5-dimethylhydantoin sodium salt is added with 500-1000mL of an organic solvent; (f) In the step (2), the syringe advancing speed is 0.08mm/min; (g) In the step (2), the reaction temperature is 80-100 ℃ and the reaction time is 3-6 hours.
  5. 5. Use of a haloamine antimicrobial textile finishing liquor according to any one of claims 1 to 4 for the preparation of an antimicrobial textile.
  6. 6. A process for the preparation of a haloamine-containing antimicrobial fabric, characterized in that a haloamine antimicrobial fabric finishing liquor according to any one of claims 1 to 4 is used, comprising the steps of: (1) Soaking the textile in the textile finishing liquid, heating and reacting, and taking out; (2) Completely immersing the textile in a dimethylamine borane aqueous solution, standing for reaction, and then taking out; (3) And (5) baking and drying the textile fabric to obtain the halogen-containing amine antibacterial textile fabric.
  7. 7. The method of preparing an antimicrobial fabric containing haloamine according to claim 6, wherein in the step (2), the fabric is completely immersed in an aqueous solution of dimethylamine borane, allowed to stand for reaction, and the fabric is completely immersed in an organic solution containing amino carbon nanotubes after being taken out, heated for reaction, and then taken out.
  8. 8. A process for the preparation of a halogen-containing amine antibacterial fabric according to claim 7, wherein at least one of the following a) -e) is satisfied: a) In the step (1), heating the reaction temperature to be 100-120 ℃ and the reaction time to be 30-120min; b) In the step (2), the concentration of the dimethylamine borane in the dimethylamine borane aqueous solution is 0.01-0.05mol/L; c) In the step (2), the reaction time is 5-30min; d) In the step (2), the concentration of the amino carbon nano tube in the organic solution containing the amino carbon nano tube is 0.2-0.4mol/L; e) In the step (3), the baking temperature is 100-120 ℃ and the baking time is 30-120 ℃.
  9. 9. The method for preparing an antimicrobial fabric containing haloamine according to claim 7, wherein the organic solution containing the amino carbon nanotubes contains sulfuric acid with a concentration of 0.01-0.02mol/L, and the diameter of the amino carbon nanotubes is 1-10nm.
  10. 10. A halogen-containing amine antibacterial fabric obtained by the method for producing a halogen-containing amine antibacterial fabric according to any one of claims 6 to 9.

Description

Halogen-containing amine antibacterial fabric finishing liquid, antibacterial fabric, and preparation method and application thereof Technical Field The invention relates to the technical field of textile finishing liquid, in particular to an antimicrobial textile finishing liquid containing halogen amine, an antimicrobial textile, a preparation method and application thereof. Background In daily life, pathogenic bacteria are commonly transmitted by contact and colonize the surface of objects. When pathogenic bacteria multiply and invade the human body through wounds or mouth and nose sites, the human body health is affected and even life is endangered. The structure of the fabric provides it with a considerable surface area and the ability to absorb moisture, keeping it wet, and its objective properties make the fabric favourable for bacterial reproduction. Therefore, the antibacterial capability of the textile fabric is endowed, the reproduction of bacteria on the textile fabric can be effectively reduced, and the probability of human bodies contacting pathogenic bacteria is reduced. The antibacterial fabric is a fabric with the function of inhibiting surface bacteria proliferation, and is mainly divided into two types of natural antibacterial textiles and artificial antibacterial textiles. The raw materials of the natural antibacterial textile mainly comprise plant fibers with strong antibacterial performance and linear macromolecular structure in nature, such as bamboo fibers, fibrilia, alginate fibers and the like. Taking hemp fiber as an example, flavonoid compounds contained in the hemp fiber have good antibacterial effect, and the hollow structure in the hemp fiber is beneficial to inhibiting the reproduction of anaerobic bacteria. The artificial antibacterial textile fabric is obtained by manually adding antibacterial agents such as quaternary ammonium salt, triclosan, biguanide compounds, metal salts and the like into the textile fabric and doping or grafting the antibacterial agents onto the surface of the polymer, so that the antibacterial performance of the fabric is further endowed. At present, the fabric treatment method adopting the incorporation or grafting of the antibacterial agent to obtain the antibacterial capability has the common disadvantages of low antibacterial efficiency and insufficient antibacterial capability after the fabric is washed, and the mechanical property of the material can be influenced by the direct incorporation of the antibacterial agent into the fabric. Disclosure of Invention The invention provides an antibacterial fabric finishing liquid containing halogen amine, an antibacterial fabric and a preparation method and application thereof, and aims to solve the technical problems of low antibacterial efficiency or large reduction of antibacterial capacity after washing of the existing fabric. In order to solve the technical problems, one of the purposes of the invention is to provide a halamine antibacterial fabric finishing liquid, which comprises 8-15 vt percent of organic solution containing antibacterial halamine siloxane derivative, 0.1-0.5mol/L of silver nitrate and the balance of water; The concentration of the antibacterial halamine siloxane derivative in the organic solution containing the antibacterial halamine siloxane derivative is 200-400g/L, and the structural formula of the antibacterial halamine siloxane derivative is In the antibacterial fabric finishing liquid provided by the application, silver nitrate ionizes hydrogen ions in water to enable an aqueous solution to be acidic, siloxane of an antibacterial silane derivative containing halogen amine generates hydrolysis reaction in the acidic aqueous solution to generate a silanol compound, hydroxyl contained in the silanol compound can react with hydroxyl on the surface of a fabric through mutual dehydration condensation to generate firm Si-O-Si chemical bonds, so that the halogen amine group can be stably modified on the surface of the fabric to provide a broad-spectrum and efficient antibacterial effect, meanwhile, silver ions in the solution can be replaced with carboxyl on the surface of the fabric by adopting an in-situ ion exchange method, so that silver ions are bonded on the surface of the fabric, the silver ions have DNA molecular structures capable of destroying bacteria, the antibacterial effect is provided, the efficient antibacterial rate is achieved through synergistic antibacterial effect of halogen amine and silver ions on the surface of the fabric, and the antibacterial rate of the fabric after washing is still higher. Preferably, the organic solvent in the organic solution containing the antibacterial halamine siloxane derivative is N, N-dimethylformamide. Preferably, the preparation method of the antibacterial halamine-containing siloxane derivative comprises the following steps: (1) Dissolving 5, 5-dimethyl hydantoin and sodium hydroxide in a solvent, stirring until the 5, 5-di