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Bio-based wear-resistant antibacterial photocurable floor coating and preparation method thereof

A bio-based, antibacterial light technology, applied in epoxy resin coatings, antifouling/underwater coatings, polyurea/polyurethane coatings, etc., can solve problems such as discoloration, antibacterial agents affecting antibacterial effect, and lack of wear resistance of coatings. Achieve the effect of good coating and uniform product

Active Publication Date: 2015-01-21
JIANGSU KUANGSHUN PHOTOSENSITIVITY NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent with the publication number CN101555380A provides an antibacterial two-component polyurethane coating for wood flooring. The invention achieves the antibacterial purpose by adding an antibacterial agent to the polyurethane coating, but there is a problem that the antibacterial agent easily migrates out during use and affects the antibacterial effect. Problem; the patent No. CN101100577A provides a two-component water-based floor paint coating, which has good construction performance and superior environmental protection. The VOC content is very small, which is beneficial to the protection of the environment and the health of the human body. When used on wooden floors, because the wood is hydrophilic, the pigment in the wood will quickly dissolve in water, causing the color of the paint to change, and the problem of discoloration needs to be solved; the patent No. CN102046874A provides a radiation-curable biological Based coatings, the invention indicates that bio-based materials can be blended with coating formulations to prepare coatings containing at least 5 wt% renewable materials, but there is no specific statement on the preparation of bio-based materials, and the preparation of bio-based polyols is mostly Being aliphatic, the abrasion resistance of the coating is lacking

Method used

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  • Bio-based wear-resistant antibacterial photocurable floor coating and preparation method thereof
  • Bio-based wear-resistant antibacterial photocurable floor coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Preparation of monoisocyanate containing unsaturated groups: 22.229g (0.10mol) isophorone diisocyanate, polymerization inhibitor p-4-methoxyphenol 0.07g is added to a magnetic stirrer, thermometer In the three-necked flask, the temperature was raised to 40°C, and the mixture of 12.193g (0.105mol) hydroxyethyl acrylate and catalyst dibutyltin dilaurate 0.004g was dropped drop by drop with a dropping funnel, and the drop rate was controlled, and the drop was completed within 2 hours. Complete the reaction until the isocyanate group content reaches the specified standard, and the reaction is completed to obtain an isocyanate-containing unsaturated monomer;

[0024] (2) Preparation of bio-based light-curable antibacterial resin: 40 g of mixed solvent of 85.06 g (0.05 mol) of tannic acid and butyl acetate / ethanol (mass ratio 5:1) was added to the three ports equipped with a magnetic stirrer and a thermometer. In the flask, the temperature was raised to 70°C, and the isoc...

Embodiment 2

[0028] (1) Preparation of monoisocyanate containing unsaturated groups: 17.415g (0.10mol) toluene diisocyanate and 0.16g of inhibitor p-4-methoxyphenol were added to a three-necked flask equipped with a magnetic stirrer and a thermometer , the temperature was raised to 30°C, and a mixture of 13.643g (0.105mol) hydroxyethyl methacrylate and catalyst dibutyltin dilaurate 0.03g was added drop by drop with a dropping funnel, and the drop rate was controlled, and the drop was completed within 3 hours. React until the content of isocyanate groups reaches the specified standard, and the reaction is completed to obtain an unsaturated monomer containing isocyanate groups;

[0029] (2) Preparation of bio-based photocurable antibacterial resin: 42.53g (0.025mol) of tannic acid and 40g of mixed solvent of butyl acetate / ethanol (mass ratio 2:1) were added to the three ports equipped with magnetic stirrer and thermometer In the flask, the temperature was raised to 75°C, and the isocyanate-c...

Embodiment 3

[0033] (1) Preparation of monoisocyanate containing unsaturated groups: 17.416g (0.10mol) 2,4-toluene diisocyanate and 0.09g of inhibitor p-4-methoxyphenol are added to a mixture equipped with a magnetic stirrer and a thermometer. In a three-necked flask, the temperature was raised to 50°C, and the mixture of 12.193g (0.105mol) hydroxyethyl acrylate and catalyst dibutyltin dilaurate 0.014g was dropped drop by drop with a dropping funnel, and the drop rate was controlled to finish dropping within 2.5h. After the dropwise reaction, the content of the isocyanate group reaches the specified standard, and the reaction is completed to obtain an unsaturated monomer containing isocyanate group;

[0034](2) Preparation of bio-based photocurable antibacterial resin: 40g of mixed solvent of tannic acid 28.35g (0.0167mol) and butyl acetate / ethanol (mass ratio 1:1) was added to a magnetic stirrer equipped with In a three-necked flask with a magnetic stirrer and a thermometer, heat up to 80...

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PUM

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Abstract

The invention discloses a bio-based wear-resistant antibacterial photocurable floor coating. The floor coating comprises the following components: 5%-20% of bio-based photocurable antibacterial resin, 30%-50% of photocurable resin, 2%-5% of a photoinitiator, 10%-30% of a filler and 18%-40% of an active diluting monomer. The photocurable floor coating is prepared by uniformly mixing the components in proportion and uniformly dispersing in a three-roller machine. According to the coating disclosed by the invention, by combining the bio-based material and a UV-curing technology, the 'green' + 'green' chemistrical characteristics are achieved, and since the bio-based photocurable antibacterial resin contains a large number of rigid groups and antibacterial functional groups, the coating has both wear-resistant and antibacterial properties.

Description

technical field [0001] The invention relates to the technical field of photosensitive polymer coatings, in particular to a light-cured floor coating containing a bio-based structure and having wear resistance and antibacterial properties and a preparation method thereof. Background technique [0002] Floor coatings have been widely studied, and high-performance and multifunctional floor coatings have become a research hotspot. The patent with the publication number CN101555380A provides an antibacterial two-component polyurethane coating for wood flooring. The invention achieves the antibacterial purpose by adding an antibacterial agent to the polyurethane coating, but there is a problem that the antibacterial agent easily migrates out during use and affects the antibacterial effect. Problem; the patent No. CN101100577A provides a two-component water-based floor paint coating, which has good construction performance and superior environmental protection. The VOC content is v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D163/10C09D5/14C09D7/12
CPCC08G18/672C08L2205/025C08L2205/03C09D5/14C09D175/14C08L75/14
Inventor 刘仁刘晓亚罗静李治全王春林朱民安丰磊
Owner JIANGSU KUANGSHUN PHOTOSENSITIVITY NEW MATERIAL
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