CN112126333A - Water-based quick-drying easy-to-construct automobile repair varnish and preparation method thereof - Google Patents
Water-based quick-drying easy-to-construct automobile repair varnish and preparation method thereof Download PDFInfo
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- CN112126333A CN112126333A CN202011018904.9A CN202011018904A CN112126333A CN 112126333 A CN112126333 A CN 112126333A CN 202011018904 A CN202011018904 A CN 202011018904A CN 112126333 A CN112126333 A CN 112126333A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6241—Polymers of esters containing hydroxy groups of alpha-beta ethylenically unsaturated carboxylic acids with epoxy compounds other than alkylene oxides and hydroxyglycidyl compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
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Abstract
An aqueous quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the component A comprises: the water-based hydroxyl acrylic acid dispersion solution, a defoaming agent, a leveling agent, a wetting agent, a thickening agent, an amine neutralizing agent and deionized water; the component B comprises: a lipophilic curing agent, a hydrophilic ether cosolvent without hydroxyl and a hydrophilic ester cosolvent without hydroxyl; the component C comprises: hydrophilic ether cosolvent without hydroxyl and deionized water. The preparation method comprises the following steps: (1) preparing a component A; (2) preparing a component B; (3) and preparing the component C. The using method comprises the following steps: mixing the component A, the component B and the component c according to the proportion of 100: 50: mixing the components A and B in a ratio of 60-70, manually stirring the components A and B uniformly, adding the component C, mixing the components C, and manually stirring the components uniformly to obtain a mixture, namely spraying; the spraying can be continuously carried out for two times, and the polishing can be carried out after the spraying is finished and the heating and drying are carried out by a baking lamp. The product of the invention has low cost, quick drying and easy construction.
Description
Technical Field
The invention relates to the technical field of automobile repair varnish, in particular to an aqueous quick-drying easy-to-construct automobile repair varnish and a preparation method thereof.
Background
Along with the strict national requirements on environmental protection, the water-based automobile repair paint is more and more urgent, and the existing automobile repair paint is not suitable for the current needs. One of the existing automobile refinishing paints is solvent-type varnish, which has high VOC content and great environmental pollution; the second existing automobile refinishing paint is a water-based two-component varnish, which takes water-based hydroxyl acrylic resin as varnish and isocyanate as a curing agent. The method has the advantages that the VOC content is low, the method belongs to an environment-friendly product, the environment VOC emission standard is met, but the defects are obvious: spraying 2 processes are needed, the first spraying is finished, the sprayed paint layer is milky, the paint layer slowly becomes transparent along with the volatilization of moisture, the time for changing the transparent paint layer has a great relationship with the temperature and the humidity of the environment, and the time is generally about 2 to 15 minutes; after the second spraying, the paint film needs to be completely transparent, and the process takes about 10 to 90 minutes; finally, the whole paint repairing process can be finished after the paint is baked for about 30 minutes at the temperature of 60-70 ℃. The whole paint repairing process takes long time, the construction result is difficult to control, and the requirements of quick drying and easy construction required by the automobile repairing paint are not met.
Aiming at the defects, a modified water-dispersible isocyanate curing agent is adopted, and the modified water-dispersible isocyanate curing agent is used as the main raw material, so that the price of the prepared repair varnish is also higher, the sale, popularization and application of the product are influenced, the technical problems are solved only by improving, and the problems that the whole paint repairing process is long in time consumption and the construction result is difficult to control are not solved completely.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem solved by the invention is how to reduce the product cost of the automobile repair varnish, and the automobile repair varnish is quick to dry and easy to construct.
In order to solve the technical problems, the first technical scheme adopted by the invention is that the water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
60-90 parts of aqueous hydroxy acrylic acid dispersion solution,
0.2 to 0.5 portion of defoaming agent,
0.2 to 1 portion of flatting agent,
0.2 to 0.8 portion of wetting agent,
0.5 to 1.5 portions of thickening agent,
0.2 to 1 portion of amine neutralizer,
10-30 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
40-70 parts of a lipophilic curing agent,
20-30 parts of hydrophilic ether cosolvent without hydroxyl,
5-10 parts of hydrophilic ester cosolvent without hydroxyl;
the component C mainly comprises the following components in parts by mass:
1-25 parts of hydrophilic ether cosolvent without hydroxyl,
75-100 parts of deionized water.
In order to solve the technical problems, the second technical scheme adopted by the invention is that the water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
60-90 parts of aqueous hydroxy acrylic acid dispersion solution,
0.2 to 0.5 portion of defoaming agent,
0.2 to 1 portion of flatting agent,
0.2 to 0.8 portion of wetting agent,
0.5 to 1.5 portions of thickening agent,
0.2 to 1 portion of amine neutralizer,
10-30 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
40-70 parts of a lipophilic curing agent,
20-30 parts of cosolvent containing partial lipophilic ethers and not containing hydroxyl,
5-10 parts of a cosolvent containing part of lipophilic esters and not containing hydroxyl;
the component C mainly comprises the following components in parts by mass:
1-25 parts of cosolvent containing partial lipophilic ethers and not containing hydroxyl,
75-100 parts of deionized water.
In the two technical schemes:
preferably, in the component B, the lipophilic curing agent is an isocyanate curing agent;
furthermore, the isocyanate curing agent is hexamethylene diisocyanate trimer curing agent, the solid content of the curing agent is 100%, and no special requirement is imposed on the viscosity.
Preferably, in the component B and the component C, the hydrophilic ether cosolvent without hydroxyl is an ether cosolvent containing groups which are hydrophilic and can not react with the curing agent, the hydrophilic ester cosolvent without hydroxyl is an ester cosolvent containing groups which are hydrophilic and can not react with the curing agent,
further, the hydrophilic ether cosolvent without hydroxyl is dipropylene glycol dimethyl ether, and the hydrophilic ester cosolvent without hydroxyl is diethylene glycol ethyl ether acetate.
Preferably, in the component B and the component C, the mass percentage of the non-hydroxyl-containing lipophilic ether cosolvent containing part of the lipophilic ethers is more than 60% of the non-hydroxyl-containing hydrophilic ether cosolvent, and less than 40% of the non-hydroxyl-containing lipophilic ether cosolvent; the mass percentage of the hydroxyl-free lipophilic ester cosolvent containing part is more than 60 percent of the hydroxyl-free hydrophilic oily ester cosolvent, and the mass percentage of the hydroxyl-free lipophilic oily ester cosolvent containing part is less than 40 percent.
Further, the non-hydroxyl lipophilic ether cosolvent is ethylene glycol dibutyl ether, and the non-hydroxyl lipophilic oil ester cosolvent is propylene glycol diacetate.
The invention also aims to provide a preparation method of the water-based quick-drying easy-to-construct automobile repair varnish.
Therefore, the first technical scheme provided by the invention is a preparation method of the water-based quick-drying easy-to-construct automobile repair varnish, which comprises the following steps:
(1) preparation of component A: sequentially adding the aqueous hydroxyl acrylic acid dispersion solution, the defoaming agent, the flatting agent, the wetting agent, the thickening agent, the amine neutralizing agent and the deionized water in the component A into a container, mixing and stirring uniformly, and filtering to obtain the aqueous hydroxyl acrylic acid dispersion solution;
(2) preparation of component B: sequentially adding the lipophilic curing agent, the hydrophilic ether cosolvent without hydroxyl and the hydrophilic ester cosolvent without hydroxyl in the component B into a container, mixing and stirring uniformly, filtering to obtain the product, and sealing and storing;
(3) preparation of component C: adding a hydrophilic ether cosolvent without hydroxyl and deionized water into a container, mixing and stirring uniformly, and filtering to obtain the water-soluble organic solvent;
the second technical scheme provided by the invention is a preparation method of the water-based quick-drying easy-to-construct automobile repair varnish, which comprises the following steps:
(1) preparation of component A: sequentially adding the aqueous hydroxyl acrylic acid dispersion solution, the defoaming agent, the flatting agent, the wetting agent, the thickening agent, the amine neutralizing agent and the deionized water in the component A into a container, mixing and stirring uniformly, and filtering to obtain the aqueous hydroxyl acrylic acid dispersion solution;
(2) preparation of component B: sequentially adding the lipophilic curing agent, the non-hydroxyl cosolvent containing part of lipophilic ethers and the non-hydroxyl cosolvent containing part of lipophilic esters in the component B into a container, mixing and stirring uniformly, filtering to obtain the product, and sealing and storing;
(3) preparation of component C: adding a cosolvent containing part of lipophilic ethers and free of hydroxyl and deionized water into a container, mixing and stirring uniformly, and filtering to obtain the product;
the invention also aims to provide a use method of the water-based quick-drying easy-to-construct automobile repair varnish.
Therefore, the technical scheme provided by the invention is a using method of the water-based quick-drying easy-to-construct automobile repair varnish, which comprises the following specific steps: during construction, the component A, the component B and the component c are mixed according to the proportion of 100: 50: mixing the component A and the component B in a ratio of 60-70, manually stirring the mixture uniformly, adding the component C, mixing the mixture, and manually stirring the mixture uniformly again to obtain the spray coating. The spraying can be continuously carried out for two times, after the spraying is finished, the polishing can be carried out after the heating by an infrared baking lamp is carried out for 30 minutes at 60-70 ℃, and the polishing can also be carried out after the natural air drying without the heating and baking by the infrared baking lamp.
Compared with the prior art, the product has low cost, is quick-drying and easy to construct.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention, but are not intended to limit the invention.
Example 1
The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
60 parts of aqueous hydroxy acrylic acid dispersion solution,
0.5 part of defoaming agent, 0.5 part of,
0.2 part of a leveling agent,
0.8 part of wetting agent is added,
0.5 part of a thickening agent, namely,
1 part of amine neutralizing agent, namely 1 part of amine neutralizing agent,
10 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
40 parts of hexamethylene diisocyanate trimer curing agent,
30 parts of dipropylene glycol dimethyl ether,
5 parts of diethylene glycol ethyl ether acetate;
the component C mainly comprises the following components in parts by mass:
1 part of dipropylene glycol dimethyl ether,
100 parts of deionized water.
Example 2
The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
80 parts of aqueous hydroxy acrylic acid dispersion solution,
0.3 part of defoaming agent, 0.3 part of,
0.6 part of a leveling agent,
0.4 part of wetting agent is added,
1.2 parts of a thickening agent, namely,
0.5 part of amine neutralizing agent, namely,
20 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
65 parts of hexamethylene diisocyanate trimer curing agent,
25 parts of dipropylene glycol dimethyl ether,
8 parts of diethylene glycol ethyl ether acetate;
the component C mainly comprises the following components in parts by mass:
15 parts of dipropylene glycol dimethyl ether,
80 parts of deionized water.
Example 3
The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
90 parts of aqueous hydroxy acrylic acid dispersion solution,
0.2 part of defoaming agent, 0.2 part of,
1 part of a leveling agent, namely 1 part,
0.2 part of wetting agent is added,
1.5 parts of a thickening agent, namely,
0.2 part of amine neutralizing agent, namely,
30 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
70 parts of hexamethylene diisocyanate trimer curing agent,
20 parts of dipropylene glycol dimethyl ether,
10 parts of diethylene glycol ethyl ether acetate;
the component C mainly comprises the following components in parts by mass:
25 parts of dipropylene glycol dimethyl ether,
and 75 parts of deionized water.
The preparation method of the above embodiments 1 to 3 comprises the following steps:
(1) preparation of component A: sequentially adding the aqueous hydroxyl acrylic acid dispersion solution, the defoaming agent, the flatting agent, the wetting agent, the thickening agent, the amine neutralizing agent and the deionized water in the component A into a container, mixing and stirring uniformly, and filtering to obtain the aqueous hydroxyl acrylic acid dispersion solution;
(2) preparation of component B: sequentially adding the hexamethylene diisocyanate trimer curing agent, the dipropylene glycol dimethyl ether and the diethylene glycol ethyl ether acetate in the component B into a container, mixing and stirring uniformly, filtering, and sealing for storage;
(3) preparation of component C: adding dipropylene glycol dimethyl ether and deionized water into a container, mixing and stirring uniformly, and filtering to obtain the product;
example 4
The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
60 parts of aqueous hydroxy acrylic acid dispersion solution,
0.5 part of defoaming agent, 0.5 part of,
0.2 part of a leveling agent,
0.8 part of wetting agent is added,
0.5 part of a thickening agent, namely,
1 part of amine neutralizing agent, namely 1 part of amine neutralizing agent,
10 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
40 parts of hexamethylene diisocyanate trimer curing agent,
the material comprises the following components in percentage by mass: 30 portions of ether cosolvent consisting of 60 percent of dipropylene glycol dimethyl ether and 40 percent of ethylene glycol dibutyl ether,
the material comprises the following components in percentage by mass: 5 parts of ester cosolvent consisting of 60 percent of diethylene glycol ethyl ether acetate and 40 percent of propylene glycol diacetate;
the component C mainly comprises the following components in parts by mass:
the material comprises the following components in percentage by mass: 1 part of ether cosolvent consisting of 60 percent of dipropylene glycol dimethyl ether and 40 percent of ethylene glycol dibutyl ether,
100 parts of deionized water.
Example 5
The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
80 parts of aqueous hydroxy acrylic acid dispersion solution,
0.3 part of defoaming agent, 0.3 part of,
0.6 part of a leveling agent,
0.4 part of wetting agent is added,
1.2 parts of a thickening agent, namely,
0.5 part of amine neutralizing agent, namely,
20 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
65 parts of hexamethylene diisocyanate trimer curing agent,
the material comprises the following components in percentage by mass: 25 portions of ether cosolvent consisting of 60 percent of dipropylene glycol dimethyl ether and 40 percent of ethylene glycol dibutyl ether,
the material comprises the following components in percentage by mass: 8 parts of ester cosolvent consisting of 60 percent of diethylene glycol ethyl ether acetate and 40 percent of propylene glycol diacetate;
the component C mainly comprises the following components in parts by mass:
the material comprises the following components in percentage by mass: 15 portions of ether cosolvent consisting of 60 percent of dipropylene glycol dimethyl ether and 40 percent of ethylene glycol dibutyl ether,
80 parts of deionized water.
Example 6
The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
90 parts of aqueous hydroxy acrylic acid dispersion solution,
0.2 part of defoaming agent, 0.2 part of,
1 part of a leveling agent, namely 1 part,
0.2 part of wetting agent is added,
1.5 parts of a thickening agent, namely,
0.2 part of amine neutralizing agent, namely,
30 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
70 parts of hexamethylene diisocyanate trimer curing agent,
the material comprises the following components in percentage by mass: 20 portions of ether cosolvent consisting of 60 percent of dipropylene glycol dimethyl ether and 40 percent of ethylene glycol dibutyl ether,
the material comprises the following components in percentage by mass: 10 parts of ester cosolvent consisting of 60 percent of diethylene glycol ethyl ether acetate and 40 percent of propylene glycol diacetate;
the component C mainly comprises the following components in parts by mass:
the material comprises the following components in percentage by mass: 25 portions of ether cosolvent consisting of 60 percent of dipropylene glycol dimethyl ether and 40 percent of ethylene glycol dibutyl ether,
and 75 parts of deionized water.
The preparation method of the above embodiments 4 to 6 comprises the following steps:
(1) preparation of component A: sequentially adding the aqueous hydroxyl acrylic acid dispersion solution, the defoaming agent, the flatting agent, the wetting agent, the thickening agent, the amine neutralizing agent and the deionized water in the component A into a container, mixing and stirring uniformly, and filtering to obtain the aqueous hydroxyl acrylic acid dispersion solution;
(2) preparation of component B: sequentially adding the hexamethylene diisocyanate trimer curing agent, the dipropylene glycol dimethyl ether, the ethylene glycol dibutyl ether, the diethylene glycol ethyl ether acetate and the propylene glycol diacetate in the component B into a container, mixing and stirring uniformly, filtering, and sealing for storage;
(3) preparation of component C: adding dipropylene glycol dimethyl ether, ethylene glycol dibutyl ether and deionized water into a container, mixing and stirring uniformly, and filtering to obtain the product;
the method for using the water-based quick-drying easy-to-construct automobile repair varnish of the above examples 1 to 6 comprises the following specific steps: during construction, the component A, the component B and the component c are mixed according to the proportion of 100: 50: mixing the component A and the component B in a ratio of 60-70, manually stirring the mixture uniformly, adding the component C, mixing the mixture, and manually stirring the mixture uniformly again to obtain the spray coating. The spraying process can be carried out continuously for two times, and after the spraying is finished, the coating can be heated by an infrared baking lamp for 30 minutes at 60-70 ℃ and polished. Or the polishing can be carried out after natural air drying without heating and drying by an infrared baking lamp.
The product of the invention uses the common isocyanate curing agent-hexamethylene diisocyanate trimer curing agent to be mixed with the hydrophilic ether cosolvent without hydroxyl-dipropylene glycol dimethyl ether cosolvent and the hydrophilic ether cosolvent without hydroxyl-diethylene glycol diethyl ether acetate cosolvent to achieve the purpose of dispersing the common lipophilic curing agent, replaces the conventional modified water dispersible isocyanate curing agent with high price, and breaks the thinking habit that the conventional modified water dispersible isocyanate curing agent must be used; and the market price of the common lipophilic curing agent is only one third to one fourth of that of the modified water dispersible isocyanate curing agent, so that the manufacturing cost of the automobile repair varnish is effectively reduced, and the automobile repair varnish is more beneficial to sale, popularization and application.
Meanwhile, the viscosity of the common isocyanate curing agent adopted by the invention is not limited by viscosity conditions, and the curing agent can be low-viscosity curing agent or high-viscosity curing agent. While the conventional theory is: even if the common isocyanate curing agent is adopted, the low viscosity must be selected, otherwise the requirement of being favorable for mixing and ensuring high gloss as the automobile quick repair paint cannot be met. However, the low viscosity curing agent is expensive as the modified water-dispersible isocyanate curing agent, and is not favorable for reducing the manufacturing cost of the automobile repair varnish.
For the development of automotive repair varnishes, conventional thinking has been that: co-solvents have little effect on the curing agents and paints employed, and extensive research on co-solvents has been omitted. The invention adopts the hydrophilic ethers and hydrophilic esters without hydroxyl as the cosolvent, breaks through the neglect of the conventional cosolvent effect, and adopts the cooperation of the conventional curing agent and the hydrophilic cosolvent through careful research to achieve the perfect combination of the product cost and the performance.
The characteristics of the hydrophilic ether cosolvent without hydroxyl-dipropylene glycol dimethyl ether cosolvent and the hydrophilic ester cosolvent without hydroxyl-diethylene glycol ethyl ether acetate cosolvent adopted in the invention are as follows:
dipropylene glycol dimethyl ether: hydrophilic soluble grease, flash point: 65 ℃ and is non-flammable and non-explosive, and the drying speed is moderate. The surface drying speed can be controlled well, and the high-temperature prickly heat cannot be generated, and the quick-drying effect is realized at low temperature. It may or may not be oven dried.
Diethylene glycol monoethyl ether acetate: the paint has the advantages of hydrophilic dissoluble grease, high boiling point, high flash point and low volatilization rate, and can prolong the drying speed to obtain a high-gloss surface when being used in a paint formula.
The product of the invention has the advantages of low VOC content, high gloss, good fullness, low cost, quick drying and easy construction.
In order to better illustrate the beneficial effects of the invention, the following comparison of the product of the invention with the performance of the same type of aqueous two-component products on the market is carried out.
The product of the invention is compared with the similar water-based double-component products in the market in all aspects, and the comparison result is shown in the following table 1:
table 1:
as can be seen from the above table, compared with the similar water-based two-component products in the market, the product of the invention has the advantages of fast drying, outstanding construction performance, continuous construction, time saving and low product cost. The matched water-based base paint has better appearance than solvent-based varnish. Compared with solvent-based products, the coating has better construction performance.
The embodiments of the present invention have been described in detail with reference to the examples, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.
Claims (10)
1. The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, and is characterized in that the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
60-90 parts of aqueous hydroxy acrylic acid dispersion solution,
0.2 to 0.5 portion of defoaming agent,
0.2 to 1 portion of flatting agent,
0.2 to 0.8 portion of wetting agent,
0.5 to 1.5 portions of thickening agent,
0.2 to 1 portion of amine neutralizer,
10-30 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
40-70 parts of a lipophilic curing agent,
20-30 parts of hydrophilic ether cosolvent without hydroxyl,
5-10 parts of hydrophilic ester cosolvent without hydroxyl;
the component C mainly comprises the following components in parts by mass:
1-25 parts of hydrophilic ether cosolvent without hydroxyl,
75-100 parts of deionized water.
2. The water-based quick-drying easy-to-construct automobile repair varnish comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B to the component C is 100: 50: 60-70, wherein:
the component A mainly comprises the following components in parts by mass:
60-90 parts of aqueous hydroxy acrylic acid dispersion solution,
0.2 to 0.5 portion of defoaming agent,
0.2 to 1 portion of flatting agent,
0.2 to 0.8 portion of wetting agent,
0.5 to 1.5 portions of thickening agent,
0.2 to 1 portion of amine neutralizer,
10-30 parts of deionized water;
the component B mainly comprises the following components in parts by mass:
40-70 parts of a lipophilic curing agent,
20-30 parts of cosolvent containing partial lipophilic ethers and not containing hydroxyl,
5-10 parts of a cosolvent containing part of lipophilic esters and not containing hydroxyl;
the component C mainly comprises the following components in parts by mass:
1-25 parts of cosolvent containing partial lipophilic ethers and not containing hydroxyl,
75-100 parts of deionized water.
3. The aqueous quick-drying easy-to-apply automobile repair varnish according to claim 1 or 2, wherein in the component B, the lipophilic curing agent is an isocyanate curing agent.
4. The waterborne quick-drying easy-to-apply automobile repair varnish as claimed in claim 3, wherein the isocyanate curing agent is hexamethylene diisocyanate trimer curing agent, the solid content of which is 100%, and no special requirement is imposed on the viscosity.
5. The waterborne quick-drying easy-to-construct automobile repair varnish according to claim 1, wherein in the component B and the component C, the hydrophilic ether cosolvent without hydroxyl groups is an ether cosolvent containing groups which are both hydrophilic and can not react with the curing agent, and the hydrophilic ester cosolvent without hydroxyl groups is an ester cosolvent containing groups which are both hydrophilic and can not react with the curing agent.
6. The waterborne quick-drying easy-to-apply automobile refinishing varnish according to claim 5, wherein the hydrophilic ether cosolvent without hydroxyl groups is dipropylene glycol dimethyl ether, and the hydrophilic ester cosolvent without hydroxyl groups is diethylene glycol ethyl ether acetate.
7. The waterborne quick-drying easy-to-construct automobile repair varnish according to claim 2, wherein in the component B and the component C, the mass percentage of the non-hydroxyl-containing partial lipophilic ether cosolvent is more than 60% of the non-hydroxyl-containing hydrophilic ether cosolvent and less than 40% of the non-hydroxyl-containing lipophilic ether cosolvent; the mass percentage of the hydroxyl-free lipophilic ester cosolvent containing part is more than 60 percent of the hydroxyl-free hydrophilic oily ester cosolvent, and the mass percentage of the hydroxyl-free lipophilic oily ester cosolvent containing part is less than 40 percent.
8. The waterborne quick-drying easy-to-construct automobile repair varnish as claimed in claim 7, wherein the non-hydroxyl group-containing lipophilic ether cosolvent is ethylene glycol dibutyl ether, and the non-hydroxyl group-containing lipophilic oil ester cosolvent is propylene glycol diacetate.
9. A method for preparing the aqueous quick-drying easy-to-construct automotive refinish varnish according to claim 1, comprising the following steps:
(1) preparation of component A: sequentially adding the aqueous hydroxyl acrylic acid dispersion solution, the defoaming agent, the flatting agent, the wetting agent, the thickening agent, the amine neutralizing agent and the deionized water in the component A into a container, mixing and stirring uniformly, and filtering to obtain the aqueous hydroxyl acrylic acid dispersion solution;
(2) preparation of component B: sequentially adding the lipophilic curing agent, the hydrophilic ether cosolvent without hydroxyl and the hydrophilic ester cosolvent without hydroxyl in the component B into a container, mixing and stirring uniformly, filtering to obtain the product, and sealing and storing;
(3) preparation of component C: adding the hydrophilic ether cosolvent without hydroxyl and deionized water into a container, mixing and stirring uniformly, and filtering to obtain the product.
10. A method for preparing the aqueous quick-drying easy-to-construct automotive refinish varnish according to claim 2, comprising the following steps:
(1) preparation of component A: sequentially adding the aqueous hydroxyl acrylic acid dispersion solution, the defoaming agent, the flatting agent, the wetting agent, the thickening agent, the amine neutralizing agent and the deionized water in the component A into a container, mixing and stirring uniformly, and filtering to obtain the aqueous hydroxyl acrylic acid dispersion solution;
(2) preparation of component B: sequentially adding the lipophilic curing agent, the non-hydroxyl cosolvent containing part of lipophilic ethers and the non-hydroxyl cosolvent containing part of lipophilic esters in the component B into a container, mixing and stirring uniformly, filtering to obtain the product, and sealing and storing;
(3) preparation of component C: adding the cosolvent containing part of lipophilic ethers and free of hydroxyl and deionized water into a container, mixing and stirring uniformly, and filtering to obtain the product.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694820A (en) * | 2020-12-31 | 2021-04-23 | 三棵树(上海)新材料研究有限公司 | Preparation method of ultrafast-drying aqueous double-component acrylic acid refinishing paint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666227A (en) * | 2013-11-28 | 2014-03-26 | 河南三元科技化工有限公司 | Water-based environment-friendly two-component PU (polyurethane) automobile varnish and preparation method thereof |
| CN108192481A (en) * | 2017-12-26 | 2018-06-22 | 株洲市九华新材料涂装实业有限公司 | A kind of locomotive internal and external ornament aqueous polyurethane dull finishing coat and preparation method |
| CN108864918A (en) * | 2018-07-30 | 2018-11-23 | 立邦涂料（中国）有限公司 | A kind of high-performance water-based two-component finish compositions, Preparation method and use |
| JP2019123790A (en) * | 2018-01-16 | 2019-07-25 | 三菱ケミカル株式会社 | Aqueous resin dispersion, aqueous coating material, and coated article |
| CN111154388A (en) * | 2019-12-28 | 2020-05-15 | 东来涂料技术（上海）股份有限公司 | Safe water-based two-component high-gloss finish paint and preparation method thereof |
| CN111320926A (en) * | 2020-03-26 | 2020-06-23 | 山东兴师网络科技有限公司 | Environment-friendly two-component water-based finishing varnish for automobile |
-
2020
- 2020-09-24 CN CN202011018904.9A patent/CN112126333B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666227A (en) * | 2013-11-28 | 2014-03-26 | 河南三元科技化工有限公司 | Water-based environment-friendly two-component PU (polyurethane) automobile varnish and preparation method thereof |
| CN108192481A (en) * | 2017-12-26 | 2018-06-22 | 株洲市九华新材料涂装实业有限公司 | A kind of locomotive internal and external ornament aqueous polyurethane dull finishing coat and preparation method |
| JP2019123790A (en) * | 2018-01-16 | 2019-07-25 | 三菱ケミカル株式会社 | Aqueous resin dispersion, aqueous coating material, and coated article |
| CN108864918A (en) * | 2018-07-30 | 2018-11-23 | 立邦涂料（中国）有限公司 | A kind of high-performance water-based two-component finish compositions, Preparation method and use |
| CN111154388A (en) * | 2019-12-28 | 2020-05-15 | 东来涂料技术（上海）股份有限公司 | Safe water-based two-component high-gloss finish paint and preparation method thereof |
| CN111320926A (en) * | 2020-03-26 | 2020-06-23 | 山东兴师网络科技有限公司 | Environment-friendly two-component water-based finishing varnish for automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694820A (en) * | 2020-12-31 | 2021-04-23 | 三棵树(上海)新材料研究有限公司 | Preparation method of ultrafast-drying aqueous double-component acrylic acid refinishing paint |
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