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Antibacterial film product and preparation process

A technology of thin film products and preparation process, which is applied in the field of plastic products, can solve the problems of affecting the long-lasting antibacterial effect, the antibacterial durability needs to be improved, and the ultra-fine antibacterial agent powder, so as to increase stability and weather resistance and prevent growth. With agglomeration, long-lasting antibacterial effect

Pending Publication Date: 2021-03-26
台州市瑞康日用品科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used antibacterial plastic films mostly use silver ion antibacterial agents. Generally, silver ion antibacterial agents are coated on the surface of the film to form an antibacterial film. Although the process is simple, there are many problems. For example, the antibacterial agent powder is ultra-fine, which will cause harm to the human body and the environment, and the surface composition will be uneven after the antibacterial agent is dried, which limits the antibacterial effect. Long-lasting sterilization, thus affecting the long-lasting antibacterial effect
[0004] Therefore, the antibacterial durability of existing plastic films needs to be improved

Method used

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  • Antibacterial film product and preparation process
  • Antibacterial film product and preparation process
  • Antibacterial film product and preparation process

Examples

Experimental program
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Effect test

preparation example 1

[0054] The preparation method of silicate / silver composite powder comprises the following steps:

[0055] 1) Set the molar concentration to 0.5×10 -3 mol / L silver nitrate solution and polyvinylpyrrolidone aqueous solution with a mass concentration of 1.2% are mixed in a volume ratio of 4:1 to obtain a mixed solution;

[0056] 2) Mix 80 g of the mixed solution in step 1) with 3 g of kaolin to obtain a reaction solution, and stir for 4 hours;

[0057] 3) After adding 0.2 g of glucose to the reaction solution to continue the reaction for 2 hours, filter and dry at 60° C. for 24 hours to obtain a silicate / silver composite powder;

[0058] Among them, the average particle size of kaolin is 20-30 μm.

preparation example 2

[0060] The preparation method of silicate / silver composite powder comprises the following steps:

[0061] 1) Set the molar concentration to 1.5×10 -3 mol / L silver nitrate solution and polyvinylpyrrolidone aqueous solution with a mass concentration of 1% are mixed in a volume ratio of 4.5:1 to obtain a mixed solution;

[0062] 2) Mix 90 g of the mixed solution in step 1) with 2.5 g of kaolin to obtain a reaction solution, and stir for 4.5 hours;

[0063] 3) After adding 0.3 g of glucose to the reaction solution to continue the reaction for 1.5 h, filter and dry at 60° C. for 24 h to obtain a silicate / silver composite powder;

[0064] Among them, the average particle size of kaolin is 20-30 μm.

preparation example 3

[0066] The preparation method of silicate / silver composite powder comprises the following steps:

[0067] 1) Set the molar concentration to 2×10 -3 mol / L silver nitrate solution and polyvinylpyrrolidone aqueous solution with a mass concentration of 0.8% are mixed in a volume ratio of 5:1 to obtain a mixed solution;

[0068] 2) Mix 100 g of the mixed solution in step 1) with 2 g of kaolin to obtain a reaction solution, and stir for 5 hours;

[0069] 3) After adding 0.5 g of glucose to the reaction solution to continue the reaction for 1 hour, filter and dry at 60° C. for 24 hours to obtain a silicate / silver composite powder;

[0070] Among them, the average particle size of kaolin is 20-30 μm.

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Abstract

The invention relates to an antibacterial film product and a preparation process, and belongs to the technical field of plastic products, the antibacterial film product comprises, by weight, 3-7 partsof an antibacterial material, 75-85 parts of linear low density polyethylene, 10-25 parts of high density polyethylene, 0.4-0.8 part of an antioxidant, 0.5-1.5 parts of a toughening agent, 1-2 partsof a lubricant, and 1-2 parts of nano zinc oxide, and the antibacterial material comprises silicate / silver composite powder. The preparation method comprises the following steps: S1, mixing: uniformlymixing the raw materials to obtain a mixture; and S2, extruding, namely melting the mixture, extruding and blow-molding to form the film. The preparation method has the advantages that the antibacterial effect of the film is improved, and the antibacterial durability is improved.

Description

technical field [0001] The application relates to the field of plastic products, in particular to an antibacterial film product and a preparation process. Background technique [0002] There are many plastic film products in daily life, such as food packaging bags, garbage bags, plastic wrap, etc., which have been widely used in various industries. At present, with the development of science and technology and the continuous improvement of people's quality of life, people's health awareness is also constantly improving, and antibacterial plastic film products are also widely used. [0003] At present, the commonly used antibacterial plastic films mostly use silver ion antibacterial agents. Generally, silver ion antibacterial agents are coated on the surface of the film to form an antibacterial film. Although the process is simple, there are many problems. For example, the antibacterial agent powder is ultra-fine, which will cause harm to the human body and the environment, ...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L67/02C08K7/00C08K3/34C08K9/12C08K3/08C08K9/02C08K7/24C08K5/00C08K3/22C08K13/06C08J5/18
CPCC08J5/18C08J2323/08C08J2423/06C08J2467/02C08K7/00C08K3/346C08K9/12C08K2003/0806C08K9/02C08K7/24C08K5/0058C08K2003/2296C08K2003/2241C08K13/06
Inventor 赵永建
Owner 台州市瑞康日用品科技有限公司
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