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UV curing antibiotic coating and preparation thereof

A technology of antibacterial coating and ultraviolet light, which is applied in the direction of epoxy resin coating, antifouling/underwater coating, coating, etc., can solve the problems of not having antibacterial function, etc., achieve good antibacterial effect, simple preparation process, and good antibacterial performance Effect

Inactive Publication Date: 2010-06-23
苏州市明大高分子科技材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that most of the existing UV-curable coatings do not have antibacterial function, the present invention provides a UV-curable antibacterial coating and a preparation method thereof. This UV-curable antibacterial coating has good antibacterial properties and the preparation process is simple

Method used

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  • UV curing antibiotic coating and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Synthesis of Special Functional Group Heterocyclic Compound PA

[0037] Slowly add 1.1 moles of phosphorus pentoxide into 1.5 moles of hydroxyethyl acrylate, stir while adding, control the temperature not to exceed 95°C, control the temperature at 205-110°C after the addition, add 1.1 moles of 4-hydroxy For piperidine, the temperature is controlled at 115°C and vacuumized for 2 hours, and the acid value can be detected to reach 220-260 mgKOH / g. Wherein the hydroxyethyl acrylate can also be replaced with any one of hydroxypropyl acrylate, hydroxyethyl methacrylate, and hydroxypropyl methacrylate, and the effect is the same. 4-Hydroxypiperidine can also use 2-Hydroxypiperidine to achieve the same effect.

[0038] Its physical and chemical indicators are as follows:

[0039] project

Exterior

Acid value mgKOH / g

Refractive index n D 25°C

Viscositymp.s / 25℃

index

3-4#

220-260

1.4780

1200-1500

[0040] Note: The ap...

Embodiment 2

[0043] Table 1. UV antibacterial coating benchmark formula

[0044] name

category

Dosage

Bisphenol A type epoxy acrylate EA

Oligomer

25-35％

Aliphatic polyurethane acrylate PUA

Oligomer

10-15％

Special functional group acrylate PA

Oligomer

5-10％

TPGDA

monomer

10-15％

TMPTA

monomer

10-28％

Photoinitiator 1173

Photoinitiator

5-6％

Nano acrylate

additive

3-5％

silver oxide

additive

0.5-1％

matte powder

Matting agent

3-6％

Wear-resistant powder

Wear-resistant material

5-10％

Defoamer

defoaming

0.6-2.2％

leveling agent

Leveling

0.4-1.8％

[0045] Disperse at a high speed at a speed of 900-1200r / min according to the formula amount in Table 1 and vacuumize (vacuum degree is -0.08MPa) to prepare a coating, and use curtain coating for construction, and the coating amount is 90-100g / m 2...

Embodiment 3

[0049] In the formula in Table 1, the special functional group acrylate PA, nano-acrylate and silver oxide were removed, and the rest remained unchanged. After the UV-cured coating was made into a film, the antibacterial performance was tested, and the nano-acrylate and silver oxide were removed, and the rest of the ingredients remained unchanged. The performance of the UV-cured coating was tested after film formation, and the results are shown in Table 3:

[0050] Table 3. Antibacterial detection without adding special antibacterial materials

[0051] category

[0052] It can be seen that the antibacterial performance is obviously improved after adding special functional group acrylate PA.

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Abstract

The invention discloses a UV-curable antimicrobial coating, the components of which are as follows: bisphenol A type epoxy acrylate EA; aliphatic PUA; special functional group acrylate PA; TPGDA; TMPTA; photoinitiators; nano acrylate; oxidized silver; and auxiliaries. The preparation method comprises the following steps of: step one, synthesizing special functional group heterocyclic compound PA and later adding phosphorus pentoxide to acrylic acid hydroxy esters so as to react with hydroxyl piperidine and then prepare special functional group heterocyclic compound PA; and step two, taking each component according to the formula, stirring and mixing each component so as to carry out dispersion at the speed of 900 to 1200r per min, then adding silver oxide and photoinitiators after being dispersed evenly, and finally obtaining UV-curable antimicrobial coating through dispersion. The UV-curable antimicrobial coating prepared by the invention has good anti-bacterial effect. As the self-prepared special functional group acrylate PA, the nano acrylate and the silver oxide are added, after UV-curable film-forming, the anti-coli rate can achieve over 99 percent and the anti-staphylococcal rate thereof achieves over 99 percent, and the effectiveness is long.

Description

technical field [0001] The invention belongs to the field of preparation of antibacterial coatings, in particular to a preparation method of ultraviolet curing antibacterial coatings. Background technique [0002] UV-curable coating is an environmentally friendly and green coating developed in the middle of the 20th century. It has been developed and produced in China for less than 20 years. Because of its environmental protection, energy saving and high efficiency, it is a kind of green building decoration and protection material that China and the world are pushing. In the past eight years, it has been developing at a rate of 25% in my country. [0003] UV antibacterial coating is a new type of UV coating developed on the basis of UV curing coatings. Global research in this area is still in its infancy. UV coatings are currently expanding from floor furniture in my country to the finishing of "children's toys", "mobile phones", "cosmetic packaging" and some high-end offi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D5/14
Inventor 杨军余宗萍
Owner 苏州市明大高分子科技材料有限公司
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