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: 2009-01-28
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 antiba

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] Use 1.1 moles of phosphorus pentoxide to slowly add 1.5 moles of hydroxyethyl acrylate, stirring while adding, and control the temperature not to exceed 95°C. After the addition, control the temperature at 205-110°C. After 20 minutes, add 1.1 moles of 4-hydroxyl Piperidine, temperature controlled at 115°C and vacuumed for 2 hours, and the acid value is 220-260mgKOH / g. Among them, hydroxyethyl acrylate can also be replaced with any of hydroxypropyl acrylate, hydroxyethyl methacrylate, and hydroxypropyl methacrylate, and the effect is the same. 4-hydroxypiperidine can also be used with 2-hydroxypiperidine to have the same effect.

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

[0039] Item

[0040] Note: Appearance hue is measured by Fe and Co colorimetry; refractive index is measured by monocular Abbe refractometer; viscosity is measured by NDJ-79 rotary viscometer (Shanghai Tong...

Embodiment 2

[0042] Table 1. Reference formula of UV antibacterial coating

[0043] 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％

[0044] TPGDA

Monomer

10-15％

TMPTA

Monomer

10-28％

Photoinitiator 1173

Photoinitiator

5-6％

Nano Acrylate

Additives

3-5％

Silver oxide

Additives

0.5-1％

Matte powder

Matting agent

3-6％

Wear-resistant powder

Wear-resistant materials

5-10％

Defoamer

Defoaming

0.6-2.2％

Leveling agent

Leveling

0.4-1.8％

[0045] According to the formula amount in Table 1, carry out high-speed dispersion and vacuum (vacuum degree -0.08MPa) at a speed of 900-1200r / min to prepare a coating, which is used for curt...

Embodiment 3

[0049] In the formula in Table 1, remove the special functional groups acrylate PA, nano acrylate and silver oxide, and the rest remain unchanged. After the UV curing coating is made, the film will be formed to test the antibacterial properties. With the removal of nano acrylate and silver oxide, the rest of the composition remains unchanged The test performance of the UV-curable coatings after forming a film into a board, the results are shown in Table 3:

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

[0051] Category

[0052] It can be seen that the antibacterial performance is significantly 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 antibacterial paint preparation, and particularly relates to a method for preparing ultraviolet light-cured antibacterial paint. Background technique [0002] UV-curable coating is an environmentally friendly green coating developed in the mid-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 green building decoration and protection material promoted in China and even around the world. In the past eight years, it has been growing at a rate of 25% in my country. [0003] UV antibacterial coating is a new type of UV coating we developed based on UV curable coatings. Global research in this area is still in its infancy. UV coatings are currently expanding from floor furniture to the coating of "children's toys", "mobile phones", "cosmetic packaging" and some high-end office supplies in my country. The...

Claims

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Application Information

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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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