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Antibacterial mildew-proof polypropylene composition, polypropylene film and preparation method thereof

A technology of polypropylene composition and polypropylene film, which is applied in the preparation of antibacterial and anti-mildew polypropylene film, and in the field of anti-bacterial and anti-mildew polypropylene film, which can solve the problems of harsh conditions, poor control of product shape and particle size, and high energy consumption. question

Inactive Publication Date: 2020-10-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen from the above patent documents that the conditions for preparing guanidinium salt polymer powder in CN101037503A and CN1350022A are relatively harsh and the process is relatively complicated; in CN1445270A and US7282538B2, it is necessary to make guanidinium salt polymer into antibacterial masterbatch, the steps are cumbersome and the cost is high; CN102453315A and CN102453316A need to use sodium pyrithione, and the cost is relatively high; CN102453273A needs to operate at a certain temperature in the process of preparing antibacterial agent, the energy consumption is large, and the shape and particle size of the product after drying and crushing are not well controlled

Method used

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  • Antibacterial mildew-proof polypropylene composition, polypropylene film and preparation method thereof
  • Antibacterial mildew-proof polypropylene composition, polypropylene film and preparation method thereof
  • Antibacterial mildew-proof polypropylene composition, polypropylene film and preparation method thereof

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preparation example Construction

[0055] According to the present invention, the preparation method of described guanidinium salt composite antibacterial agent comprises the following steps:

[0056] 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;

[0057] 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;

[0058] c. Spray-dry the mixture obtained in step b to obtain a solid powder, which is then mixed with a dispersant to obtain the guanidinium salt composite antibacterial agent.

[0059] Wherein, the latex can be determined according to the type of final required powder rubber, and the latex can be styrene-butadiene latex, carboxylated styrene-butadiene latex, nitrile latex, carboxylated nitrile latex, acrylate latex, ethylene vinyl acetate latex, silicon At least one of rubber latex and styr...

Embodiment 1

[0103] (1) Preparation of guanidinium salt composite antibacterial agent

[0104] a, polyhexamethylene guanidine hydrochloride (Shanghai Shande Industrial Co., Ltd.) 1000.0g is dissolved in water and is mixed with the aqueous solution of mass concentration 20%; 50.0g zinc sulfate is mixed with the aqueous solution that mass concentration is 25%, 125.0 The g 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 aqueous solution, and stir while adding until uniformly mixed to form a transparent liquid mixture. c. Add the liquid mixture in step b to the latex solution, and stir while adding until the mixture is uniform. Then, add 5.0 g of anti-migration agent (Covestro 2794 XP). d. Dry the mixture obtained in step c with a spray dryer to obtain a solid powder; transfer the obtained solid powder to a high-speed...

Embodiment 2

[0123] (1) Preparation of guanidinium salt composite antibacterial agent

[0124] a, polyhexamethylene guanidine propionate (Shanghai Shande Industrial Co., Ltd.) 1000.0g is dissolved in water and is mixed with the aqueous solution of mass concentration 40%; 100.0g zinc acetate is mixed with the aqueous solution that mass concentration is 15%, 150.0 The g 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 (Covestro 2794 XP). 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 mix...

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Abstract

The invention belongs to the field of antibacterial materials and products thereof, and relates to an antibacterial mildew-proof polypropylene composition, a polypropylene film and a preparation method of the polypropylene film. The antibacterial mildew-proof polypropylene composition contains high-melt-strength polypropylene base resin, a guanidine salt composite antibacterial agent, a mildewproof agent and an auxiliary agent, wherein the auxiliary agent contains an antioxidant, and based on 100 parts by weight of the high melt strength polypropylene base resin, the content of the guanidine salt composite antibacterial agent is 0.05-2.0 parts by weight, the content of the mildew inhibitor is 0.01-5.0 parts by weight, and the content of the antioxidant is 0.01-10 parts by weight. The antibacterial and mildewproof polypropylene composition has good antibacterial and mildewproof effects, the water resistance is also improved, and a polypropylene film prepared from the antibacterial and mildewproof polypropylene composition has the advantages of low transverse and longitudinal thermal shrinkage rate, excellent antibacterial and mildewproof performance, difficulty in discoloring afterlong-time use and the like.

Description

technical field [0001] The invention belongs to the field of antibacterial materials and products thereof, and more specifically relates to an antibacterial and antimildew polypropylene composition, an antibacterial and antimildew polypropylene film, a preparation method of an antibacterial and antimildew polypropylene film, and the method for preparing an antibacterial antimildew polypropylene film. The antibacterial and antifungal polypropylene film prepared by the method. Background technique [0002] Biaxially oriented polypropylene (BOPP) film is a very important type of plastic film material, which has excellent mechanical properties and optical properties, as well as light weight, non-toxic, odorless, moisture-proof, and low price. It is used as a packaging material and Functional film materials have been widely used in the fields of clothing, food, medicine and health, petrochemical, electronic appliances, aerospace, biotechnology and other fields. High quality BOPP...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L79/00C08K5/36C08K5/134C08K5/526C08J5/18
CPCC08J5/18C08J2323/12C08J2479/00C08K5/1345C08K5/36C08K5/526
Inventor 郭鹏李杰吕明福徐耀辉张琦张师军初立秋
Owner CHINA PETROLEUM & CHEM CORP
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