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Electrophoretic paint capable of preventing adhesion of liquid and bacteria and application method of electrophoretic paint

A technology of bacterial adhesion and electrophoresis paint, applied in the field of electrophoresis paint, can solve problems such as unfavorable sustainable development and unfriendly environment, and achieve the effects of good wear resistance and flexibility, and simple and easy process

Active Publication Date: 2022-02-15
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current liquid-adhesive polymer coatings usually require specially formulated fluorinated compounds and use organic solvents, which are not environmentally friendly and are not conducive to sustainable development
In addition, there are also challenges in the coating process to achieve liquid and bacterial adhesion of complex devices

Method used

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  • Electrophoretic paint capable of preventing adhesion of liquid and bacteria and application method of electrophoretic paint
  • Electrophoretic paint capable of preventing adhesion of liquid and bacteria and application method of electrophoretic paint
  • Electrophoretic paint capable of preventing adhesion of liquid and bacteria and application method of electrophoretic paint

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Experimental program
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Effect test

preparation example Construction

[0039] The embodiment of the present invention relates to a kind of electrophoretic paint for preventing liquid and bacteria from adhering, and its preparation method comprises the following steps:

[0040] S1, respectively prepare high hydroxyl value water-soluble cationic resin and silicon modified crosslinking component, wherein:

[0041] The preparation method of the high hydroxyl value water-soluble cationic resin is:

[0042] In parts by weight, 0.2 part of azobisisobutyronitrile was used as an initiator, and 50 parts of propylene glycol methyl ether acetate were mixed and stirred as a solvent, and the temperature was raised to 100 ° C and kept at a temperature. After mixing the cationic monomer and the cross-linking monomer, add dropwise at a constant rate for 0.5 h, then, heat up to 110 ° C, add 0.2 part of azobisisobutyronitrile, keep the temperature for 15 h, cool down to room temperature, add lactic acid to neutralize to pH value is 7.6, that is, the high hydroxyl ...

experiment example

[0054] The anti-liquid and bacterial adhesion properties of the coatings prepared in Examples 1-4 were tested, specifically:

[0055] 1. Anti-liquid performance

[0056] see attached Figure 1-2 , with Figure 1-2For the water contact angle and sliding angle tests of Examples 1-4, the test liquid required for the contact angle is 2 μL, and the test liquid required for the sliding angle is 50 μL. By comparing Examples 1 and 4, it can be seen that the sliding angle is significantly reduced after adding PDMS. With the increase of PDMS addition (1-5%), the water contact angle and sliding angle of the coating increased. When the amount of PDMS is 0.015g (1%), it has good anti-liquid adhesion performance. If the amount of PDMS continues to increase, macroscopic phase separation will occur due to the poor compatibility of PDMS chains in the polymer system, resulting in performance decline. By comparing Example 4 and Example 1, it can be seen that after adding PDMS, the water cont...

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Abstract

The invention provides electrophoretic paint capable of preventing adhesion of liquid and bacteria. The electrophoretic paint is prepared from high-hydroxyl-value water-soluble cationic resin, a silicon-modified cross-linking component and a diluting solvent. The high-hydroxyl-value water-soluble cationic resin is obtained by polymerizing vinyl monomers in a first reaction solvent, and the vinyl monomers comprise a comonomer, a cationic monomer and a cross-linking monomer. The silicon-modified cross-linking component is obtained by reacting a silicone oil liquid low-surface-energy compound with water-dispersed or water-soluble amino resin in a second reaction solvent. The electrophoretic paint disclosed by the invention has excellent low adhesion to liquid and bacteria.

Description

technical field [0001] The invention relates to the technical field of functional coatings and preparation thereof, in particular to an electrophoretic paint that prevents liquid and bacteria from adhering and an application method thereof. Background technique [0002] In human activities, the phenomenon of liquid adhesion to the surface is ubiquitous, but in many fields, such as antifouling (water, oily liquid and corrosive liquid), self-cleaning, drag reduction, anti-blocking, etc. The impact of bacteria is negative; at the same time, in the daily life environment, bacteria widely adhere to the surfaces of daily necessities, home appliances, medical equipment, building walls and sailing ships, and with the growth of bacteria, it will cause irreversible damage to the surface; Furthermore, bacteria are also transmitted to the surface of human skin through contact and multiply in large numbers, causing great harm to human life and human health. Therefore, the preparation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/44C09D133/12C09D7/65C09D5/14C08F220/14C08F220/18C08F220/34C08F220/20C25D13/04C25D13/22
CPCC09D5/4411C09D5/448C09D5/14C09D133/066C08F220/14C25D13/04C25D13/22C08L83/04C08L61/20C08F220/1804C08F220/34C08F220/20
Inventor 于丹凤钟如秋吴旭徐秀彬王瑶芝张振强
Owner GUANGZHOU UNIVERSITY
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