Waterborne paint and preparation method thereof

A water-based coating and modification technology, applied in the field of coatings, can solve the problems of low physical indicators such as hardness and wear resistance, poor alcohol and alkali resistance, general comprehensive performance, etc., and achieve good solvency, adhesion and wear resistance Good performance and simple preparation process

Inactive Publication Date: 2018-04-27
张聪聪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are general comprehensive performance, relatively low chemical performance (such as poor alcohol and alkali resistance), and low physical indicators such as hardness and wear resistance. This is why most people think that water-based coatings are not good.

Method used

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  • Waterborne paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The raw materials and preparation method of water-based paint are as follows:

[0028] 35 parts of silicone modified acrylic resin, 10 parts of methyl etherified melamine formaldehyde resin, 4 parts of methanol, 4 parts of dipropylene glycol butyl ether, 1 part of pigment and filler, 0.1 part of wetting agent (perfluoroalkyl sulfonate), high-efficiency 0.1 part of defoamer, 0.1 part of leveling agent (alkyl modified organosiloxane and polyether polyester modified organosiloxane), 0.1 part of drier, 0.1 part of antioxidant, 40 parts of deionized water .

[0029] Preparation:

[0030] (1) Put silicone-modified acrylic resin, methyl etherified melamine formaldehyde resin, methanol and dipropylene glycol butyl ether into the dispersion container according to the formula, stir while feeding, control the speed at 800 rpm, and stir for 10-20 minutes , to obtain a uniform mixed solution system;

[0031] (2) Then add pigments and fillers, wetting agent, high-efficiency defoam...

Embodiment 2

[0033] The raw materials and preparation method of water-based paint are as follows:

[0034] 40 parts of silicone modified acrylic resin, 12 parts of methyl etherified melamine formaldehyde resin, 5 parts of methanol, 5 parts of dipropylene glycol butyl ether, 2 parts of pigment and filler, 0.5 part of wetting agent (alkyl aryl polyether), high-efficiency disinfectant 0.5 parts of foaming agent, 0.5 parts of leveling agent (polydimethylsiloxane), 0.2 parts of drier, 0.2 parts of antioxidant, 50 parts of deionized water.

[0035] The above water-based paint preparation method is the same as in Example 1.

Embodiment 3

[0037] The raw materials and preparation method of water-based paint are as follows:

[0038] 45 parts of silicone modified acrylic resin, 14 parts of methyl etherified melamine formaldehyde resin, 6 parts of methanol, 6 parts of dipropylene glycol butyl ether, 2.5 parts of pigment and filler, 0.8 part of wetting agent (sodium octyl succinate sulfonate), high-efficiency disinfectant 0.8 parts of foaming agent, 0.8 parts of leveling agent (alkyl modified organosiloxane), 0.3 parts of drier, 0.3 parts of antioxidant, 55 parts of deionized water.

[0039] The above water-based paint preparation method is the same as in Example 1.

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Abstract

The invention relates to a waterborne paint and a preparation method thereof. The waterborne paint is characterized by comprising the following raw materials by weight: 35-50 parts of organosilicon modified acrylic resin, 10-15 parts of methylated melamino-formaldehyde resin, 4-8 parts of methanol, 4-8 parts of dipropylene glycol butyl ether, 1-3 parts of filler and pigment, 0.1-1 part of a wetting agent, 0.1-1 part of an efficient defoamer, 0.1-1 part of a leveling agent, 0.1-0.5 part of a drier, 0.1-0.5 part of an antioxidant, and 40-60 parts of deionized water. The waterborne paint providedby the invention can achieve high hardness, good adhesion and wear resistance after spraying, also has excellent flexibility, water resistance and weather resistance, moisture and heat resistance andsalt spray resistance, also the preparation process is simple, and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a water-based coating and a preparation method. Background technique [0002] Objects are exposed to the atmosphere and are corroded by oxygen, moisture, etc., which are likely to cause damage such as metal corrosion, wood decay, and cement weathering. According to statistics, the metals due to rust and corrosion each year in the world account for about 20% of the annual output, and the annual economic losses caused by corrosion in my country account for about 4% of GDP, and the losses even exceed the sum of various natural disasters. And coating the surface of the object to form a protective film can prevent or delay the occurrence and development of these damage phenomena, and prolong the service life of various materials. Coatings can be coated on the surface of objects by different construction techniques to form a continuous solid film with strong adhesion and certain stre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D161/32C09D5/08C09D5/16C09D7/65C09D7/61C09D7/63C09D7/20
CPCC09D133/00C08K2201/014C08L2201/08C08L2205/03C08L2205/035C09D5/08C09D5/1687C09D5/18C08L61/32C08L71/00C08L83/04C08K13/02C08K5/42C08K5/54C08K3/36C08K5/098C08K3/22C08K5/524
Inventor 张聪聪
Owner 张聪聪
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