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Preparation method of antiviral total heat exchange fresh air film

A total heat exchange, anti-virus technology, applied in coatings, textiles and paper making, etc., can solve the problems of consumers' respiratory diseases, lack of bactericidal function, breeding of molds, etc.

Pending Publication Date: 2020-10-27
绍兴百立盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As outdoor pollution becomes more and more serious, fresh air is becoming more and more popular. However, most of the core components of fresh air fans on the market use paper cores, which not only lack the function of sterilization, but also cause mold to grow after long-term use. A large number of virus aerosols are diffused in the outside air, and prolonged use will cause respiratory diseases in consumers

Method used

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  • Preparation method of antiviral total heat exchange fresh air film
  • Preparation method of antiviral total heat exchange fresh air film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Add 26g of p-chloromethylstyrene and 19.6g of propyl dimethyl tertiary amine into the acetone solution, heat until the acetone refluxes, react for 2 hours, add n-heptane to obtain a precipitate, wash with acetone three times and then suction filter, and the filtered product Vacuum dried to constant weight to obtain polymerizable quaternary ammonium salt.

[0045] Under a nitrogen atmosphere, 14g of polymerizable quaternary ammonium salt, 3.2g of acrylonitrile and 0.1g of initiator (azobisisobutyronitrile) were slowly added dropwise to the solvent DMF (dimethylformamide), and the temperature was raised to 65°C. After reacting for 5 hours, deionized water was added to obtain a precipitate, which was washed three times and filtered with suction, and the separated product was vacuum-dried to obtain a quaternary ammonium salt copolymer.

[0046]2g of quaternary ammonium salt copolymer and 8g of polyvinyl alcohol (Anhui Wanwei, 1799) were dissolved in 200g of DMF (dimethylfor...

Embodiment 2

[0048] Add 15.4 g of monochloropropene and 20.4 g of triethylamine into the acetone solution, heat until the acetone is refluxed, react for 2 hours, add n-heptane to obtain a precipitate, wash with acetone three times and then suction filter, vacuum-dry the filtered product to constant weight, A polymerizable quaternary ammonium salt is obtained.

[0049] Under a nitrogen atmosphere, slowly drop 10.8g of polymerizable quaternary ammonium salt, 6.3g of styrene and 0.05g of initiator (azobisisobutyronitrile) into the solvent DMF, raise the temperature to 55°C, react for 6h, add deionized The precipitate was obtained with water, which was washed three times and then suction-filtered, and the separated product was vacuum-dried to obtain a quaternary ammonium salt copolymer.

[0050] The quaternary ammonium salt copolymer of 3g and 7g polyvinyl alcohol (Anhui Wanwei, 1799) are dissolved and dissolved in 200gDMF, and the solution is coated on a PP microporous membrane (Sanshui Tongx...

Embodiment 3

[0052] Add 14.8g of 4-bromo-2-pentene and 19.6g of propyldimethyl tertiary amine to the acetone solution, heat until the acetone refluxes, react for 2h, add n-heptane to obtain a precipitate, wash it with acetone three times, and then filter it with suction. The obtained product was vacuum-dried to constant weight to obtain a polymerizable quaternary ammonium salt.

[0053] Under nitrogen atmosphere, 6.9g polymerizable quaternary ammonium salt, 5.3g methyl acrylate and 0.1g initiator (azobisisobutyronitrile) are slowly added dropwise in the solvent DMAC (dimethylacetamide), and the temperature rises for 65 ℃, reacted for 5 hours, added deionized water to obtain a precipitate, washed three times, and filtered with suction, and vacuum-dried the separated product to obtain a quaternary ammonium salt copolymer.

[0054] Dissolve 1.5g of quaternary ammonium salt copolymer and 8.5g of polyacrylic acid (Shandong Xintai, 30% PAA) in 200g of DMAC (dimethylacetamide), and coat the solut...

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Abstract

The invention discloses a preparation method of an antiviral total heat exchange fresh air film. The preparation method comprises the following steps: reacting halogenated hydrocarbon with an amino compound monomer to obtain polymerizable quaternary ammonium salt; carrying out copolymerization reaction on polymerizable quaternary ammonium salt and a small molecular monomer to obtain a quaternary ammonium salt polymer; dissolving a quaternary ammonium salt polymer and a high-moisture-permeability polymer in a solvent to obtain a coating solution, coating a porous base material with the coatingsolution, and drying to obtain the antiviral total heat exchange fresh air film. The antiviral total heat exchange fresh air film is prepared by blending a quaternary ammonium salt polymer and a high-moisture-penetrability polymer in a solvent and coating the mixture on a porous base material. The antiviral total-heat-exchange fresh air film has high sensible heat and latent heat exchange capacity, meanwhile, viruses in air can be captured and killed through high electrostatic attraction capacity, and the effects of sterilizing and purifying indoor air and outdoor air are achieved.

Description

technical field [0001] The invention relates to the field of heat exchange fresh air membranes, in particular to a preparation method of an antiviral total heat exchange fresh air membrane. Background technique [0002] In recent years, new types of influenza and other viruses such as SARS virus, Ebola virus, H1N1 virus, NCP virus and other infectious diseases have threatened human life, prompting human beings to take various antibacterial and antiviral measures to protect their own lives. . [0003] Traditional organic small molecule antibacterial agents have disadvantages such as poor performance, easy volatilization, difficult processing, and poor chemical stability. In recent years, organic polymer compounds with antibacterial groups can just overcome the above shortcomings. It covalently combines the antibacterial groups on the insoluble carrier, which can not only be reused, but also the antibacterial groups are concentrated on the surface of the carrier, and the ster...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36D06N3/00D06N3/04C08L23/12C08L77/06
CPCC08J9/365D06N3/0011D06N3/0036D06N3/04D06N2203/04D06N2209/1671D06N2211/30C08J2323/12C08J2377/06C08J2439/00C08J2425/18
Inventor 娄琪超金伟伟徐意
Owner 绍兴百立盛新材料科技有限公司
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