Antibacterial mildew-proof polyvinyl alcohol composition, biaxially oriented polyvinyl alcohol film and preparation method thereof

A polyvinyl alcohol, antibacterial and anti-mold technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of easy pollution of film biaxially stretched polyvinyl alcohol film, etc., and achieve good industrial application Foreground, high tensile strength, good effect of antibacterial and mildew resistance

Active Publication Date: 2020-05-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an antibacterial and mildew-proof polyvinyl alcohol composition in order to overcome the problems that the existing polyvinyl alcohol raw materials are difficult to prepare films by biaxial stretching process and the surface of the obtained biaxial stretched polyvinyl alcohol film is easily polluted , an antibacterial and mildew-proof biaxially stretched polyvinyl alcohol film and a preparation method thereof, the prepared polyvinyl alcohol film has high tensile strength and barrier properties, and has good antibacterial and anti-mildew properties

Method used

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  • Antibacterial mildew-proof polyvinyl alcohol composition, biaxially oriented polyvinyl alcohol film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0030] According to a preferred embodiment of the present invention, the preparation method of the guanidinium salt composite antibacterial agent comprises the following steps:

[0031] a, the aqueous solution of guanidinium salt polymer is contacted with the aqueous solution of zinc salt and / or copper salt, forms transparent liquid mixture;

[0032] b. mixing the liquid mixture obtained in step a with the latex solution crosslinked by radiation, and then adding an anti-migration agent to obtain a mixture;

[0033] c, the mixture obtained in step b is spray-dried to obtain a solid powder, which is then mixed with a dispersant to obtain the guanidinium salt composite antibacterial agent;

[0034]Wherein, the latex is preferably at least one of styrene-butadiene latex, carboxylated styrene-butadiene latex, nitrile latex, carboxylated nitrile latex, acrylate latex, ethylene vinyl acetate latex, silicone rubber latex and styrene-butadiene pyridine latex; more It is preferably sty...

preparation example 1

[0067]a. Dissolve 1000.0 g of polyhexamethyleneguanidine hydrochloride in water to prepare an aqueous solution with a mass concentration of 20%; prepare 50.0 g of zinc sulfate to prepare an aqueous solution with a mass concentration of 25%. 125.0 g of styrene-butadiene latex solution was directly used after radiation crosslinking, and the concentration was 40%. b. Add the prepared guanidinium salt polymer aqueous solution into the container containing the zinc-containing and copper-containing aqueous solutions, and stir while adding until uniformly mixed to form a transparent liquid mixture. c. Add the liquid mixture in step (b) into the latex solution, and stir while adding until the mixture is uniform. Then, 5.0 g of anti-migration agent was added to the mixture. d, the mixture obtained in step (c) is dried by a spray dryer to obtain a solid powder; the obtained solid powder is transferred to a high-speed stirrer, and 5.0 g of fumed silica is added as a dispersant, and afte...

preparation example 2

[0069] a. Dissolve 1000.0 g of polyhexamethylene guanidine propionate in water to make an aqueous solution with a mass concentration of 40%; prepare 100.0 g of zinc acetate to make an aqueous solution with a mass concentration of 15%. 150.0g of nitrile latex solution was directly used after radiation crosslinking, and the concentration was 30%. b. Add the prepared guanidinium salt polymer aqueous solution into the container containing the zinc-containing aqueous solution, and stir while adding until uniformly mixed to form a transparent liquid mixture. c. Add the liquid mixture in step (b) into the latex solution, and stir while adding until the mixture is uniform. Then, 5.0 g of anti-migration agent was added to the mixture. d, the mixture obtained in step (c) is dried by a spray dryer to obtain a solid powder; the obtained solid powder is transferred to a high-speed stirrer, and 15.0 g of nano-calcium carbonate is added as a dispersant, and after high-speed mixing and dispe...

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Abstract

The invention belongs to the field of polyvinyl alcohol film materials, and discloses an antibacterial mildew-proof polyvinyl alcohol composition, a biaxially oriented polyvinyl alcohol film and a preparation method thereof. The antibacterial mildew-proof polyvinyl alcohol composition contains polyvinyl alcohol, a plasticizer, a guanidine salt composite antibacterial agent, a mildew-proof agent and an auxiliary agent, wherein based on 100 parts by weight of polyvinyl alcohol, the content of the plasticizer is 10 to 30 parts by weight, the content of the guanidine salt composite antibacterial agent is 0.05 to 1.5 parts by weight, the content of the mildew-proof agent is 0.05 to 5.0 parts by weight, and the content of the auxiliary agent is 0.05 to 10 parts by weight. The polyvinyl alcohol film prepared by the invention has high tensile strength and barrier property, and also has good antibacterial and mildew-proof properties.

Description

technical field [0001] The invention belongs to the field of polyvinyl alcohol film materials, and more specifically relates to an antibacterial and antifungal polyvinyl alcohol composition, a biaxially stretched polyvinyl alcohol film and a preparation method thereof. Background technique [0002] Polyvinyl alcohol (PVA) is one of the few non-petroleum-based polymer materials that has been industrially produced and can be prepared from natural gas. Its applications cover textiles, food, medicine, construction, wood processing, paper, printing, agriculture, steel, Polymer chemical industry and other fields. PVA has excellent acid and alkali resistance and organic solvent resistance, has excellent barrier properties, good biocompatibility, and is biodegradable. However, due to the presence of polyhydroxyl structures in the molecular chain, strong hydrogen bonds are generated within and between molecules, resulting in its melting point and decomposition temperature being clos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L79/00C08L9/08C08L9/04C08L83/04C08L33/04C08L71/02C08K5/053C08K3/16C08K5/20C08K5/526C08K3/28C08K3/34C08J5/18B32B27/30B32B27/18B32B27/22B32B27/06B32B33/00
CPCC08J5/18B32B27/306B32B27/18B32B27/22B32B27/08B32B33/00C08K2003/166C08K2003/162C08K5/053C08K5/20C08K5/526C08K3/28C08K3/34C08J2329/04C08J2479/00C08J2409/04C08J2409/08C08J2483/04C08J2433/04C08J2471/02B32B2307/54B32B2307/7145
Inventor 初立秋徐萌李杰刘建叶张琦张丽英邵静波侴白舸
Owner CHINA PETROLEUM & CHEM CORP
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