Plastic surface antibacterial grease-resistant coating and preparation method thereof

A surface antibacterial and oil paint technology, applied in the field of paint, can solve the problems of low construction efficiency, not easy to obtain, slow drying rate, etc., to achieve the effect of convenient construction, strong paint adaptability, and rapid drying

Inactive Publication Date: 2020-07-31
东莞市凯成环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the above-mentioned shortcomings of two-component packaging, this method has slow drying rate and low construction efficiency when coating water-based coatings. Coatings with simultaneous good adhesion on non-polar substrates

Method used

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  • Plastic surface antibacterial grease-resistant coating and preparation method thereof
  • Plastic surface antibacterial grease-resistant coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] Preparation of main PU resin:

[0046] Method 1: Put 200g of PTMG with a molecular weight of 2000 into the reactor, vacuumize at 120°C for 1 hour, cool down to 60°C, put in 16.7g of IPDI, heat up to 90°C for 2 hours, add 144.5g of butyl acetate and 72g of ethanol , to obtain the main PU resin a, with a solid content of 50%, and R=0.75.

[0047] Method 2: Put 200g of PPG with a molecular weight of 2000 and 18g of 1,4-butanediol into the reactor, vacuumize at 120°C for 1 hour, cool down to 60°C, put in 90.3g of MDI, heat up to 90°C and react for 2 hours , adding 100g of ethyl acetate and 32g of isopropanol to obtain the main PU resin b with a solid content of 70% and R=1.2.

Embodiment 1

[0055] Adhesion promoter 814S (Nippon Paper) 1.5g, matte powder (Degussa OK420) 3.5g, silicate-loaded elemental silver antibacterial agent 1.0g, and the rest are the same as Comparative Example 1.

Embodiment 2

[0057] 4g of nitrocellulose, 6g of dammar resin, 1.5g of isothiazolinone antibacterial agent, and the rest are the same as in comparative example 2.

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Abstract

The invention discloses a plastic surface antibacterial grease-resistant coating which is prepared from a matrix resin, an auxiliary resin, an adhesion promoting resin, a scratch-resistant additive, amatte powder, a wear-resistant powder, a filler, a dispersing agent, a solvent and an antibacterial agent. In addition to strong sterilization and bacteriostasis effects, the coating also has the advantages that no benzene, ketone or other toxic solvents are contained, no curing agent is needed, single-component packaging is realized, convenient construction can be realized by spraying, roller coating (plastic sheet) or gravure printing (plastic film) and other modes; drying is quick; the cost is low; a prepared coating layer is high in hardness; the coating is high in adaptability, suitablefor polar base materials such as PET and non-polar base materials such as OPP, excellent in adhesive force, high in scratch resistance, good in matte effect and high in decorativeness. The invention also provides a preparation method of the plastic surface antibacterial grease-resistant coating.

Description

technical field [0001] The invention relates to a paint, in particular to an antibacterial and grease-resistant paint on a plastic surface and a preparation method thereof. Background technique [0002] With the development of society and the improvement of people's living standards, the requirements for the hygiene of the environment are getting higher and higher. The growth and spread of microorganisms is the main cause of the epidemic of infectious diseases. Effective control of microorganisms in the environment is of great significance to suppress the epidemic of infectious diseases and protect human health. Therefore, some antibacterial products emerged at the historic moment and gradually entered people's daily life, such as textile products such as antibacterial bed sheets, quilt covers, clothes, socks and insoles, and washing products such as antibacterial soap, hand sanitizer and body wash. In daily life, people often come into contact with some plastic products su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D127/06C09D159/00C09D5/14C09D7/20C09D7/65C09D7/61C08J7/04C08G18/75C08G18/76C08G18/48C08G18/32C08L67/02C08L23/12
CPCC08G18/32C08G18/48C08G18/755C08G18/7671C08J2323/12C08J2367/02C08K2003/0806C08L2205/03C08L2205/035C09D5/14C09D175/08C09D7/20C09D7/61C09D7/65C08L23/286C08K9/12C08K3/08C08L93/00C08L1/18C08K5/47C08L27/06C08L59/00C08K5/0058C08K5/136
Inventor 刘勇梁志成张继德
Owner 东莞市凯成环保科技有限公司
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