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Preparation process of antibacterial film

A preparation process and film technology, applied in the field of the preparation process of antibacterial films, can solve the problems of contaminated food or medicine, insignificant antibacterial effect, mildew, etc., to enhance surface adhesion, improve low film strength, and high film strength Effect

Inactive Publication Date: 2021-07-16
QINGDAO HUAHONGXING PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the plastic film is used to preserve food and medicine under certain temperature and humidity conditions, its surface is prone to breed bacteria, fungi and other microorganisms harmful to human health, which in turn contaminates food or medicine, making it deteriorate, moldy or even rotten, which is easy to cause foodborne illness
Films with antibacterial and antibacterial properties on the market not only have high manufacturing costs, but the antibacterial effect is not obvious, and the tensile strength of plastic films is not good. Therefore, plastic films have good antibacterial properties and good physical properties. The high-performance plastic film meets the safety requirements of people's production and life, and has important practical significance

Method used

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  • Preparation process of antibacterial film

Examples

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Effect test

Embodiment 1

[0035] A preparation process of antibacterial film, in parts by weight, take 1 part of nano-silver antibacterial agent, 100 parts of polyethylene resin blends, 2 parts of modified lignocellulose, 0.5 parts of silver-loaded nano-zinc oxide, plasticized 1 part of agent, 0.05 part of dispersant and 0.1 part of antioxidant are mixed, and after mixing, granulation, drying and film blowing are carried out to prepare antibacterial film.

[0036] Described nano-silver antibacterial agent is prepared according to the following steps:

[0037] Step a: Take dandelion leaves and dandelion roots, dry and pulverize them respectively, mix dandelion leaves and dandelion roots at a weight ratio of 1:2, mix dandelion leaves and dandelion roots, mix with 50% ethanol solution, and heat at 100°C Reflux for 30 min, repeat 3 times, combine the extracts for 3 times, evaporate under reduced pressure at 35°C to obtain dandelion extract extract, then dilute the dandelion extract extract to 100 mg / mL wit...

Embodiment 2

[0057] A preparation process of antibacterial film, in parts by weight, take 2 parts of nano-silver antibacterial agent, 120 parts of polyethylene resin blends, 4 parts of modified lignocellulose, 1 part of silver-loaded nano-zinc oxide, plasticizer 2 parts of agent, 0.1 part of dispersant and 0.6 part of antioxidant are mixed, and after mixing, granulation, drying and film blowing are carried out to prepare antibacterial film.

[0058] Described nano-silver antibacterial agent is prepared according to the following steps:

[0059] Step a: take dandelion leaves and dandelion roots, dry and pulverize them respectively, mix dandelion leaves and dandelion roots at a weight ratio of 1:3, mix dandelion leaves and dandelion roots, mix with 50% ethanol solution, and heat at 100°C Reflux for 40 min, repeat 3 times, combine the extracts for 3 times, evaporate under reduced pressure at 35°C to obtain dandelion extract extract, then dilute the dandelion extract extract to 100mg / mL with 7...

Embodiment 3

[0079] A preparation process of antibacterial film, in parts by weight, take 1.5 parts of nano-silver antibacterial agent, 110 parts of polyethylene resin blends, 3 parts of modified lignocellulose, 0.75 parts of silver-loaded nano-zinc oxide, plasticized 1.5 parts of agent, 0.075 part of dispersant and 0.35 part of antioxidant are mixed, and after mixing, granulation, drying and film blowing are carried out to prepare antibacterial film.

[0080] Described nano-silver antibacterial agent is prepared according to the following steps:

[0081] Step a: take dandelion leaves and dandelion roots, dry and pulverize them respectively, mix dandelion leaves and dandelion roots at a weight ratio of 1:2.5, mix dandelion leaves and dandelion roots, mix with 50% ethanol solution, and heat at 100°C Reflux for 35 minutes, repeat 3 times, combine the extracts for 3 times, evaporate under reduced pressure at 35°C to obtain dandelion extract extract, then dilute the dandelion extract extract t...

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Abstract

The invention belongs to the technical field of plastic films, and particularly relates to a preparation process of an antibacterial film, which specifically comprises the following steps of taking 1-2 parts by weight of nano-silver bacteriostatic agent, 100-120 parts by weight of polyethylene resin blend, 2-4 parts by weight of modified lignocellulose, 0.5-1 part by weight of silver-loaded nano-zinc oxide, 1-2 parts by weight of plasticizer, 0.05-0.1 part by weight of dispersant and 0.1-0.6 part by weight of antioxidant, and mixing, and granulating, drying and blowing the mixed materials to prepare the antibacterial film. The invention provides the film with good antibacterial performance, the film also has good tensile strength, and the preparation process of the antibacterial film is simple and suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of plastic films, in particular to a preparation process of an antibacterial film. Background technique [0002] Plastic films are films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins that are used for packaging and as laminations. Plastic packaging and plastic packaging products are taking an increasing share in the market, and have been widely used in many fields, especially in technical fields such as food, medicine, and chemical industry. However, when the plastic film is used to preserve food and medicine under certain temperature and humidity conditions, its surface is prone to breed bacteria, fungi and other microorganisms harmful to human health, which in turn contaminates food or medicine, making it deteriorate, moldy or even rotten, which is easy to cause foodborne illness. Films with antibacterial and antibacterial properties on the market not only have hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L97/02C08L5/00C08K9/12C08K3/28C08K3/22C08K5/00C08K3/38C08K13/06C08J5/18
CPCC08J5/18C08J2323/06C08J2423/06C08J2423/08C08J2497/02C08J2405/00C08K9/12C08K3/28C08K2003/2296C08K5/0058C08K2003/387C08K13/06
Inventor 许砚君
Owner QINGDAO HUAHONGXING PLASTIC
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