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Antibacterial environment-friendly film and preparation method thereof

A thin-film, environmentally friendly technology, applied in the fields of botanical equipment and methods, chemicals used for biological control, biocides, etc., can solve the problems of poor comprehensive performance of materials, difficult preparation process, easy to be stained with other substances, etc. Achieve the effect of improving moisture barrier and waterproof performance, simple formula and preparation process, and better comprehensive performance

Inactive Publication Date: 2020-05-29
梁际华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of this material is complex, the preparation process is not simple, the construction is inconvenient, the compatibility between the components is not good, it is easy to cause phase separation, and the overall performance of the material is not good; in addition, the cost of preparation raw materials is high, and many The layer structure is easy to delaminate due to insufficient adhesion, and other substances are easy to be stained between the layers, which affects the appearance

Method used

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  • Antibacterial environment-friendly film and preparation method thereof

Examples

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Effect test

Embodiment 1

[0030] A kind of preparation method of antibacterial environment-friendly film is characterized in that, comprises the steps:

[0031] Ⅰ Preparation of furanthiazole-based polyester: 10 g of 2,5-furandimethanol, 13.6 g of 1,2,3-thiadiazole-4,5-dicarboxylic acid, 4 g of tetrabutyl titanate, dimethyl sulfoxide Add 80g into the autoclave, replace the air in the autoclave with nitrogen, then carry out the esterification reaction at a temperature of 220°C and an absolute pressure of 20KPa for 5 hours, complete the esterification, and release the pressure to normal pressure; , control the temperature between 255°C, stir the reaction for 18h, cool to room temperature after the reaction, precipitate in water, wash the precipitated polymer with ethanol for 3 times, and finally place it in a vacuum drying oven at 80°C to dry to constant weight , to obtain a polyester based on furanthiazole;

[0032] II Preparation of fluorobenzene-furan-based copolymers: 10 g of 4-vinyl-2,6-dimethoxy-p...

Embodiment 2

[0037] A kind of preparation method of antibacterial environment-friendly film is characterized in that, comprises the steps:

[0038] Ⅰ Preparation of furanthiazole-based polyester: 10g of 2,5-furandimethanol, 13.6g of 1,2,3-thiadiazole-4,5-dicarboxylic acid, 4.5g of toluenesulfonic acid, N,N - Add 100g of dimethylformamide into the autoclave, replace the air in the autoclave with helium, then carry out the esterification reaction at a temperature of 223°C and an absolute pressure of 35KPa for 6 hours, complete the esterification, and release the pressure to normal Then, under vacuum conditions, control the temperature between 260°C, stir the reaction for 20h, cool to room temperature after the reaction, precipitate in water, wash the precipitated polymer 4 times with ethanol, and finally place it in a vacuum drying oven Dried to constant weight at 82°C to obtain furanthiazole-based polyester;

[0039] II Preparation of fluorobenzene-furan-based copolymers: 10 g of 4-vinyl-2...

Embodiment 3

[0044] A kind of preparation method of antibacterial environment-friendly film is characterized in that, comprises the steps:

[0045] Ⅰ Preparation of furanthiazole-based polyester: 10g of 2,5-furandimethanol, 13.6g of 1,2,3-thiadiazole-4,5-dicarboxylic acid, 5g of titanium chloride, N,N-dimethyl Add 120 g of acetamide into the autoclave, replace the air in the autoclave with neon gas, then carry out the esterification reaction at a temperature of 225°C and an absolute pressure of 50KPa for 6.5 hours, complete the esterification, and release the pressure to normal pressure; then Under vacuum conditions, control the temperature between 265 ° C, stir the reaction for 21 hours, cool to room temperature after the reaction, precipitate in water, wash the precipitated polymer with ethanol 5 times, and finally place it in a vacuum drying oven at 85 ° C Dried to constant weight, obtain based on furanthiazole polyester;

[0046] II Preparation of fluorobenzene-furan-based copolymers:...

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Abstract

The invention discloses a preparation method of an antibacterial environment-friendly film, which is characterized by comprising the following steps: I, preparing a furan thiazole polyester; II, preparing a fluorobenzofuran copolymer; III, casting to form a film; IV, carrying out ion exchange. The invention further discloses the antibacterial environment-friendly film prepared according to the preparation method of the antibacterial environment-friendly film. The antibacterial environment-friendly film disclosed by the invention is good in mechanical property, excellent in weather resistance and flame retardance, remarkable in antibacterial effect, excellent in environmental protection property and long in service life.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antibacterial and environment-friendly film and a preparation method thereof. Background technique [0002] In recent years, with the advancement of science and technology and the rapid development of modern industry, environmental problems have become increasingly serious. People's awareness of health and environmental protection has gradually increased, and they have put forward higher requirements for the antibacterial properties and environmental protection of various materials used in daily life. requirements. Therefore, it is particularly urgent to develop materials with environmental protection and antibacterial functions. [0003] With the advancement of polymer material synthesis technology, the film industry has developed rapidly, and film materials are widely used in daily life, such as packaging and geomembranes. No matter what kind of use it is, enviro...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L33/20C08J5/18C08J7/12A01N43/828A01N43/50A01N25/34A01P1/00
CPCA01N25/34A01N43/50A01N43/82C08J5/18C08J7/12C08J2333/20C08J2367/02C08J2433/20C08J2467/02
Inventor 梁际华
Owner 梁际华