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A long-term self-cleaning water-based nano-hub coating and preparation method thereof

A self-cleaning, water-based technology, applied in the field of coatings, can solve the problems of non-scratch and wear resistance, poor weather resistance, and difficult to clean, and achieve the effect of good weather resistance, strong wear resistance, and self-cleaning properties.

Active Publication Date: 2021-02-02
CHANGSHA HUANGMEI PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a long-lasting, self-cleaning water-based inorganic nano-hub coating, which is used to solve the problem of poor weather resistance, scratch resistance, abrasion resistance, Not stain-resistant, not easy to clean, etc.

Method used

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  • A long-term self-cleaning water-based nano-hub coating and preparation method thereof
  • A long-term self-cleaning water-based nano-hub coating and preparation method thereof
  • A long-term self-cleaning water-based nano-hub coating and preparation method thereof

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Experimental program
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Effect test

Embodiment 1-6

[0036] For the convenience of expression, three tables are used to express the proportioning and product performance of the 6 embodiments, which are respectively: Table 1: the mass percentage of a kind of long-acting self-cleaning water-based nano wheel coating raw material of 1-6 embodiments is a table; Table 2: Long-acting self-cleaning water-based nano-modified emulsion raw material weight percentage distribution table; Table 3: Long-acting self-cleaning water-based inorganic nano-wheel coating product performance index table obtained in the above-mentioned Examples 1-6.

[0037] Table 1: A long-acting self-cleaning water-based nanometer wheel coating raw material mass percentage table:

[0038]

[0039] Table 2: Long-lasting self-cleaning water-based nano-modified emulsion raw material weight percentage distribution table:

[0040]

[0041] Table 3: The long-acting self-cleaning water-based inorganic nanometer hub coating product performance index table that above-me...

Embodiment 7

[0047] Embodiment 7: The preparation method of the long-acting self-cleaning water-based nano-hub coating is as follows: proportioning the raw material components in Embodiments 1-6;

[0048] The first step is to mix one or several silanes with surfactants and hydroxyl-functional silicone oligomers. After mixing evenly, until the surfactants and hydroxyl-functional silicone oligomers are completely and uniformly dispersed in the silane system , forming a translucent silane mixed liquid; then adding silica sol and water to a pre-weighed acrylic emulsion and stirring for 5-30 minutes to prepare acrylic emulsion and silica sol mixed liquid;

[0049] In the second step, the silane mixed liquid is added dropwise to the mixed liquid of acrylic emulsion and silica sol, and the drop is completed within 30 minutes; then the temperature is raised slowly, keeping the reaction temperature at 35-50 degrees, and the reaction is stirred at a constant temperature for 0.5-8 hours, and then stop...

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Abstract

The invention relates to a long-acting self-cleaning water-based nanometer wheel hub coating, which is characterized in that the mass percentage of raw materials is: 55-80% of long-acting self-cleaning water-based nano-modified emulsion, 0.1-0.5% of wetting agent, and 0.1-0.1% of defoaming agent 0.5%, leveling agent 0.1-0.5%, thickener 1-3%, water balance. The preparation method is as follows: the first step is to prepare translucent silane mixed liquid, acrylic emulsion and silica sol mixed liquid; the second step is to drop the silane mixed liquid into the acrylic emulsion and silica sol mixed liquid, heat up, and stir at constant temperature , keep warm, add water, lower the temperature and cool down, and the long-lasting self-cleaning water-based nano-modified emulsion with milky white opaque low-viscosity liquid appearance can be obtained; the third step is to mix the emulsion prepared in the second step with auxiliary wetting agent and defoamer , leveling agent, thickener and water are mixed, and the long-lasting self-cleaning water-based nano wheel coating can be prepared by stirring evenly. The long-acting self-cleaning water-based inorganic nanometer hub coating of the present invention is applied to the hub surface and has high gloss, strong adhesion, many wear times, high hardness, water contact angle greater than 90, and the surface is hydrophobic.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a self-cleaning water-based nano car wheel coating and a preparation method thereof. Background technique [0002] With the development of the motor vehicle industry, the output and stock of motor vehicles have increased, driving economic development and bringing convenience to people's travel. The wheel hub is an indispensable part of the car, and its performance is directly related to the smooth running and safety performance of the vehicle. After the key processes such as machining of the aluminum alloy wheel hub are completed, considering the conditions of the aluminum alloy wheel hub in actual use Poor, in order to reduce the oxidation of aluminum alloy in the air and the wear and tear of the wheel hub, there are higher requirements for the coating performance after painting. In the prior art, the currently developed water-based coatings often have insufficient adhesion to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D183/06C09D5/16C09D7/61C09D7/63
CPCC08K2201/014C08L2201/08C09D5/1675C09D5/1687C09D133/00C09D183/06C08L83/06C08K13/02C08K3/36C08K5/5419C08K5/5425C08K5/5435C08K5/19C08L33/00
Inventor 宋海兵
Owner CHANGSHA HUANGMEI PAINT