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Chitosan silicone-acrylate copolymer composite polrvinyl chloride antibacterial material and preparation method and application thereof

A technology of chitosan and copolymer, which is applied in the field of organic polymer functional materials, can solve problems such as hidden health and safety hazards, contact health and safety hazards, and easy failure

Inactive Publication Date: 2013-05-15
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With people's increasing requirements for various antibacterial materials, the development of antibacterial materials has received unprecedented attention. The focus of attention and the main growth point of demand are organic polymer antibacterial materials. Antibacterial polymer materials are now being widely developed. The technical route of adding inorganic salt antibacterial agents and organic compound antibacterial agents is adopted. The former has practical value including silver-loaded antibacterial additives and nano-titanium oxide antibacterial additives, but they all inevitably contain heavy metal ions, and there are potential contact hygiene safety hazards. Silver antibacterial powder is also limited by precious metal resources; the organic synthetic antibacterial additives used in the latter are all organic compounds, which have strong volatility, permeability and migration, and are prone to failure and health and safety hazards

Method used

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  • Chitosan silicone-acrylate copolymer composite polrvinyl chloride antibacterial material and preparation method and application thereof
  • Chitosan silicone-acrylate copolymer composite polrvinyl chloride antibacterial material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] Preparation of pre-emulsion: Add 0.3kg of sodium dodecylbenzene sulfonate and 15kg of ionized water into the reactor. The reactor is equipped with a stirrer, a condensing device, and a heating jacket, and the temperature of the reactor rises to 38°C , after stirring to dissolve the surfactant, add 0.05kg of OP-10 and continue stirring for 10 minutes. 12 kg of distilled acrylonitrile, 8 kg of isoprene, 4 kg of butyl acrylate, 1 kg of hydroxyethyl acrylate, and 1.8 kg of methyl methacrylate were added dropwise in sequence, and the dropping time was about 30 minutes. After the addition, stir for another 30 minutes, cool at room temperature, and set aside for later use.

[0038] Preparation of chitosan dispersion sol: Chitosan powder 1.5kg, water 8kg, acrylic acid 0.5kg, use vertical planetary stirring device, under high-speed mixing state, disperse chitosan in acrylic acid aqueous solution to make chitosan Disperse the sol with sugar and set aside for later use. System t...

example 2

[0051] Implementation steps are identical with implementation method and preparation example 1. The different processes are:

[0052] The monomer composition in the process of "preparation of pre-emulsion" is: 6 kg of acrylonitrile, 8 kg of isoprene, 3 kg of butyl acrylate, 1.8 kg of hydroxyethyl acrylate, and 1.2 kg of methyl methacrylate.

[0053] In the "blending powder preparation" process: the ingredients of the blending powder are composed of: 4 kg of chitosan silicon acrylic copolymer, 25 kg of polyvinyl chloride, 1 kg of 8813 organotin heat stabilizer, 0.2 kg of stearic acid, polyvinyl chloride Ethylene wax 0.15kg, precipitated calcium carbonate 2 kg

[0054] The main performance indicators of the product: the antibacterial rate of the antibacterial (Escherichia coli) performance of the plastic sheet produced is over 95%, the mold growth grade of the antifungal performance is less than 1, the tensile strength of the material is 58MPa, and the notched impact strength i...

example 3

[0056] Implementation steps are identical with implementation method and preparation example 1. The different processes are:

[0057] The monomer composition in the "pre-emulsion preparation" process is: 8 kg of acrylonitrile, 10 kg of isoprene, 5 kg of butyl acrylate, 2 kg of methyl methacrylate, and 1.8 kg of hydroxyethyl acrylate.

[0058] In the "blending powder preparation" process: the batching of the blending powder consists of: chitosan silicon acrylic copolymer 5 kg, polyvinyl chloride 25 kg, 8813 organotin heat stabilizer 1kg, stearic acid 0.2kg, polyvinyl chloride Ethylene wax 0.15 kg, precipitated calcium carbonate 5 kg.

[0059] The main performance indicators of the product: the antibacterial rate of the antibacterial (Escherichia coli) performance of the plastic sheet produced is over 95%, the mold growth grade of the antifungal performance is less than 1 grade, the tensile strength of the material is 52MPa, and the notched impact strength is 49KJ / m 2 , Vic...

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Abstract

The invention belongs to the field of an organic functional polymer material and relates to chitosan silicone-acrylate copolymer and a high performance antibacterial material prepared by compounding and blending the chitosan silicone-acrylate copolymer with polyvinyl chloride resin. The invention relates to a preparation method of a polrvinyl chloride antibacterial material, which comprises the following steps of: carrying out graft copolymerization on chitosan and organosilane, acrylonitrile, isoprene and an acrylic monomer to prepare micelle copolymer with a core-shell structure; and blending and compounding the micelle copolymer with polrvinyl chloride to obtain the polrvinyl chloride antibacterial material. The copolymer is not only an antibacterial additive of the polrvinyl chloride,but also a processing auxiliary and a flexibilizer. The using amount of the copolymer is not limited in a blending and compounding system.

Description

technical field [0001] The invention belongs to the field of organic polymer functional materials, and relates to chitosan silicon-acrylic copolymer and its compound blending with polyvinyl chloride resin to prepare high-performance antibacterial functional materials. Background technique [0002] With people's increasing requirements for various antibacterial materials, the development of antibacterial materials has received unprecedented attention. The focus of attention and the main growth point of demand are organic polymer antibacterial materials. Antibacterial polymer materials are now being widely developed. The technical route of adding inorganic salt antibacterial agents and organic compound antibacterial agents is adopted. The former has practical value including silver-loaded antibacterial additives and nano-titanium oxide antibacterial additives, but they all inevitably contain heavy metal ions, and there are potential contact hygiene safety hazards. Silver anti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F220/46C08F236/12C08F220/18C08F230/08C08F2/26C08K3/26C08J3/12C08L27/06C08L51/02
Inventor 李良波孟平蕊刘勇旭
Owner UNIV OF JINAN
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