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A kind of polylactic acid modified acrylic resin sustained-release antibacterial agent and its preparation method and application

The technology of acrylic resin and antibacterial agent is applied in the field of polylactic acid modified acrylic resin slow-release antibacterial agent and preparation, which can solve the problems of breeding bacteria, short antibacterial and antiseptic effect, unfavorable long-term residential use, etc., and achieves easy operation and simple preparation method. Effect

Active Publication Date: 2022-03-11
广东施彩新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The surface antibacterial and anticorrosive treatment method of wooden furniture, wooden floor and other wood products is generally to coat a layer of antibacterial wood lacquer, etc. This antibacterial wood lacquer is to add antibacterial agent directly to the paint coating. The disadvantages are: first, if a large amount of antibacterial Second, if a small amount of antibacterial agent is used, the antibacterial and antiseptic effect will be short, and it will quickly absorb germs or breed bacteria, which is not conducive to people's long-term living and use.

Method used

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  • A kind of polylactic acid modified acrylic resin sustained-release antibacterial agent and its preparation method and application
  • A kind of polylactic acid modified acrylic resin sustained-release antibacterial agent and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Dissolve 10 parts by weight of 2-octyl-4-isothiazolin-3-one in 90 parts by weight of ethyl acetate to prepare an antibacterial agent solution, add 10 parts by weight of porous molecular sieves, magnetically stir for 30min, and turn to vacuum In the oven, reduce the air pressure of the vacuum box to below 0.1MPa, take it out after standing for 30min, centrifuge to separate the precipitate, put it in a 60°C oven and dry it for 12h, repeat the above steps 3 times to obtain saturated filled 2-octyl- 4-isothiazolin-3-one@porous molecular sieve;

[0022] Add 85 parts by weight of 2-octyl-4-isothiazolin-3-one@porous molecular sieve, 15 parts by weight of butyl acrylate, and 3 parts by weight of alkyl acrylate phosphate into a four-necked flask, and stir at a low speed , heated to 130°C, added polylactic acid PDLLA and 0.5 parts by weight of triethylamine, continued to stir for 3 hours, then cooled down to 60°C, added 1 part by weight of N,N-dimethylethanolamine and 1 part by w...

Embodiment 2

[0024] Dissolve 20 parts by weight of carbendazim in 90 parts by weight of ethyl acetate to prepare an antibacterial solution, add 15 parts by weight of a metal-organic framework compound, stir magnetically for 60 minutes, transfer to a vacuum box, and drop the vacuum box pressure To below 0.1MPa, take it out after standing for 30min, centrifuge to separate the precipitate, put it in an oven at 80°C and dry it for 6h, repeat the above steps 3 times to obtain a saturated filled carbendazim@metal-organic framework compound;

[0025] Add 75 parts by weight of carbendazim@metal-organic framework compound, 25 parts by weight of methyl methacrylate, and 6 parts by weight of benzoyl tert-butyl peroxide into a four-necked flask, stir at a low speed, and heat to 130°C, add polylactic acid PDLLA and 3 parts by weight of triethanolamine, continue to stir for 3 hours, then cool down to 60°C, add 0.1 parts by weight of N,N-dimethylethanolamine and 0.5 parts by weight of melamine formaldehyd...

Embodiment 3

[0027] 12 parts by weight of pyrithione are zinc-dissolved in 90 parts by weight of ethyl acetate to prepare an antibacterial agent solution, add 8 parts by weight of porous activated carbon, stir magnetically for 30 minutes, transfer to a vacuum box, and reduce the air pressure of the vacuum box to 0.1 Below MPa, take it out after standing for 30 minutes, centrifuge to separate the precipitate, put it in a 60°C oven and dry it for 12 hours, repeat the above steps 3 times to obtain saturated filled zinc pyrithione@porous activated carbon;

[0028] Add 80 parts by weight of zinc pyrithione@porous activated carbon, 20 parts by weight of hydroxypropyl acrylate, and 5 parts by weight of tetrahydrofuryl acrylate into a four-necked flask, stir at a low speed, heat to 130°C, add polylactic acid PDLLA and 2 parts by weight of tetrabutylammonium iodide, continue to stir for 3 hours, then cool down to 60°C, add 0.5 parts by weight of N,N-dimethylethanolamine and 0.7 parts by weight of di...

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Abstract

The invention discloses a polylactic acid-modified acrylic resin slow-release antibacterial agent and its preparation method and application. The cage-like substance is used as a carrier, and the antibacterial agent is filled with low-pressure adsorption, and then the outlet of the cage-like substance is sealed by polylactic acid-modified water-based resin, and the preparation is made. Polylactic acid modified acrylic resin slow-release antibacterial agent. The invention utilizes the degradability of polylactic acid and the aging characteristics of acrylic resin to effectively control the opening speed of the outlet of the cage-like carrier material, so that the antibacterial agent adsorbed in the cage-like carrier can be released quantitatively, thereby achieving the preparation of low-toxicity and long-acting antibacterial dosage purpose. The preparation method of the invention is simple and easy to operate, and the polylactic acid modified acrylic resin slow-release antibacterial agent is applied in the antiseptic and antibacterial wood varnish, which has long-term antibacterial property, low toxicity and environmental protection.

Description

technical field [0001] The invention relates to the field of antibacterial technology, in particular to a polylactic acid modified acrylic resin slow-release antibacterial agent, a preparation method and application. Background technique [0002] With the development of society, people's living standards are getting higher and higher, and the requirements for the safety of the living environment are getting higher and higher. The surface of common wooden furniture, wooden floor and other wooden products in the family is easy to absorb harmful bacteria, or it will produce some poisonous fungi after long-term storage, which will have a serious impact on people's physical and mental health. deal with. [0003] The surface antibacterial and anticorrosive treatment method of wooden furniture, wooden floor and other wood products is generally to coat a layer of antibacterial wood lacquer, etc. This antibacterial wood lacquer is to add antibacterial agent directly to the paint coa...

Claims

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Application Information

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IPC IPC(8): C09D5/14C08F283/02C08F220/18C08F220/14C08F220/20C08F220/06
CPCC09D5/14C08F283/02C08F220/1804C08F220/14C08F220/20C08F220/06
Inventor 叶邦君谢冠群王小霞钟小秋
Owner 广东施彩新材料科技有限公司