CN113214709A - Water-based fluorocarbon paint for preparing paint film - Google Patents
Water-based fluorocarbon paint for preparing paint film Download PDFInfo
- Publication number
- CN113214709A CN113214709A CN202110431575.9A CN202110431575A CN113214709A CN 113214709 A CN113214709 A CN 113214709A CN 202110431575 A CN202110431575 A CN 202110431575A CN 113214709 A CN113214709 A CN 113214709A
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- Prior art keywords
- paint
- film
- fluorocarbon
- water
- assistant
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Classifications
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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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Abstract
The invention discloses a water-based fluorocarbon paint for preparing a paint film, which is prepared from the following raw materials in percentage by weight: 30-45% of aqueous fluorocarbon resin, 10-15% of amino resin, 3-8% of crosslinking assistant, 5-8% of anti-fouling assistant, 10-15% of film-forming assistant, 0.4-0.7% of defoaming agent and 15-20% of water, and the invention overcomes the defects of the prior art and enhances the anti-fouling capability of a paint film; isophorone diisocyanate is used as a crosslinking auxiliary agent, so that the adhesive capacity of a paint film formed by fluorocarbon paint is enhanced; by using propylene glycol methyl ether as a film forming aid and using Deform 5500 as a defoaming agent, the gloss retention of a paint film is improved.
Description
Technical Field
The invention relates to the technical field of fluorocarbon paint, and particularly belongs to water-based fluorocarbon paint for manufacturing a paint film.
Background
The metal fluorocarbon paint is a high-efficiency, multipurpose, chemically-cured two-component normal-temperature curing coating taking fluorocarbon copolymer as a raw material, and has excellent performances such as durability, protection, decoration and the like. The outdoor long-term use and artificial accelerated aging tests show that fluorine-carbon bonds connected with fluorocarbon resin molecules in the metal fluorocarbon paint can resist the degradation of ultraviolet rays, and the metal fluorocarbon paint has extremely excellent durability, ultraviolet ray resistance and weather resistance, so that the metal fluorocarbon paint coating is as new as possible for a long time, and the maintenance requirement is reduced. However, the existing fluorocarbon paint has poor durability, insufficient anti-fouling capability and larger glossiness difference, and can not meet the normal use requirement.
Disclosure of Invention
The invention aims to provide a water-based fluorocarbon paint for preparing a paint film, which overcomes the problems of insufficient adhesive force and dirt resistance of the fluorocarbon paint in the prior art.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the water-based fluorocarbon paint for preparing the paint film comprises the following raw materials in percentage by weight: 30-45% of water-based fluorocarbon resin, 10-15% of amino resin, 3-8% of crosslinking assistant, 5-8% of anti-fouling assistant, 10-15% of film-forming assistant, 0.4-0.7% of defoaming agent and 15-20% of water.
Wherein the crosslinking assistant is isophorone diisocyanate.
Wherein the anti-fouling additive is prepared from propylene glycol methyl ether acetate and cyclohexyl acrylate according to the weight ratio of 0.6-1.0: 1.
Wherein the film-forming assistant is propylene glycol methyl ether.
Wherein, the defoaming agent is Deform 5500.
Wherein, the dispersing agent with the weight percentage of 1-4 percent is at least one of triethyl hexyl phosphoric acid, methyl amyl alcohol and guar gum.
Further, the preparation method of the water-based fluorocarbon paint comprises the following steps:
(1) putting the aqueous fluorocarbon resin, the amino resin and water into a reaction kettle according to the weight ratio, and stirring;
(2) stirring is kept, and the film forming additive and the defoaming agent are sequentially added into the reaction kettle and stirred for 1-2 hours;
(3) grinding the mixture by a grinder after the mixture is uniformly dispersed until the mixture is uniform and no obvious particles exist;
(4) and slowly stirring for 0.5-1 hour, filtering, adding the crosslinking assistant and the anti-fouling assistant, and stirring and mixing uniformly to construct.
Compared with the prior art, the invention has the following implementation effects:
1. according to the invention, the propylene glycol methyl ether acetate and the cyclohexyl acrylate are used as the anti-fouling auxiliary agent, so that the mixing of the aqueous fluorocarbon resin and the amino resin can be facilitated, the viscosity of the fluorocarbon paint is reduced, and the fluorocarbon paint does not need to use a flatting agent; the propylene glycol methyl ether acetate and the cyclohexyl acrylate enhance the orientation of the fluorine-containing functional group in the fluorocarbon resin in the fluorocarbon paint matrix, so that the fluorine-containing functional group in the polymerized fluorocarbon paint is concentrated on the surface of the paint film, and the anti-fouling capability of the paint film is enhanced.
2. According to the invention, isophorone diisocyanate is used as a crosslinking auxiliary agent, so that the adhesion capability of a paint film formed by fluorocarbon paint is enhanced under the affinity action of cyanate ester functional groups between the fluorocarbon paint and a metal substrate.
3. According to the invention, propylene glycol methyl ether is used as a film forming aid, and Deform 5500 is used as a defoaming agent, so that the gloss retention of a paint film is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
30kg of aqueous fluorocarbon resin, 10kg of amino resin and 13kg of water are put into a reaction kettle, heated to 40 ℃ and stirred; then sequentially adding a film-forming aid propylene glycol methyl ether and a defoaming agent Deform 5500 into a reaction kettle, and stirring for 1 h; and grinding the uniformly mixed and dispersed mixture by a grinding machine until the mixture is uniform and no obvious particles exist, slowly stirring for 0.5 hour, filtering, adding an anti-fouling aid formed by mixing 3kg of isophorone diisocyanate serving as a crosslinking aid, 3.5kg of propylene glycol methyl ether acetate and 4kg of cyclohexyl acrylate, and stirring and mixing uniformly to construct the anti-fouling agent.
Example 2
Putting 35kg of aqueous fluorocarbon resin, 15kg of amino resin and 15kg of water into a reaction kettle, heating to 40 ℃, and stirring; then sequentially adding a film-forming aid propylene glycol methyl ether and a defoaming agent Deform 5500 into the reaction kettle, and stirring for 2 hours; and grinding the uniformly mixed and dispersed mixture by a grinding machine until the mixture is uniform and no obvious particles exist, slowly stirring for 1 hour, filtering, adding an anti-fouling aid formed by mixing 8kg of isophorone diisocyanate, 3kg of propylene glycol methyl ether acetate and 3kg of cyclohexyl acrylate, and stirring and mixing uniformly to construct.
Example 3
Putting 40kg of aqueous fluorocarbon resin, 15kg of amino resin and 15kg of water into a reaction kettle, heating to 40 ℃, and stirring; then sequentially adding a film-forming aid propylene glycol methyl ether and a defoaming agent Deform 5500 into the reaction kettle, and stirring for 2 hours; and grinding the uniformly mixed and dispersed mixture by a grinding machine until the mixture is uniform and no obvious particles exist, slowly stirring for 1 hour, filtering, adding 3kg of dispersing agent prepared by triethylhexylphosphoric acid, methylpentanol and Guel gum according to the mass ratio of 1:1:1, 6kg of crosslinking assistant isophorone diisocyanate, 3kg of propylene glycol methyl ether acetate and 4kg of cyclohexyl acrylate, and stirring and mixing uniformly to obtain the antifouling assistant. The dispersant further improves the efficacy of the anti-fouling additive, enhances the anti-fouling capability and simultaneously improves the durability of a paint film.
Comparative example 1
The difference from example 1 is that the amount of the crosslinking assistant added is 0.
Comparative example 2
The difference from example 1 is that the addition amount of the antifouling auxiliary was 0.
Comparative example 3
The difference from example 1 is that the coalescent was ethylene glycol.
The paint films of examples 1-3 and comparative examples 1-3 are coated on a stainless steel plate, the leveling thickness is 0.5-0.8cm, the adhesion, gloss retention and anti-fouling index of the paint film are tested according to national standards GB/T9286, GB/T9754 and GB/T9780, and the results are shown in the following table:
| adhesion/grade | Gloss retention% | Stain resistance index Delta L% | |
| Example 1 | 1 | 93 | <1.0 |
| Example 2 | 1 | 91 | <1.0 |
| Example 3 | 1 | 95 | <1.0 |
| Comparative example 1 | 3 | 89 | <1.0 |
| Comparative example 2 | 2 | 87 | >1.0 |
| Comparative example 3 | 3 | 72 | >1.0 |
According to the change of the test data, the invention uses propylene glycol methyl ether acetate and cyclohexyl acrylate as the anti-fouling auxiliary agent to concentrate the fluorine-containing functional groups in the polymerized fluorocarbon paint on the surface of the paint film, so that the anti-fouling capability of the paint film is enhanced; isophorone diisocyanate is used as a crosslinking auxiliary agent, so that the adhesive capacity of a paint film formed by fluorocarbon paint is enhanced; by using propylene glycol methyl ether as a film forming aid and using Deform 5500 as a defoaming agent, the gloss retention of a paint film is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The water-based fluorocarbon paint for preparing paint films is characterized by comprising the following raw materials in percentage by weight: 30-45% of water-based fluorocarbon resin, 10-15% of amino resin, 3-8% of crosslinking assistant, 5-8% of anti-fouling assistant, 10-15% of film-forming assistant, 0.4-0.7% of defoaming agent and 15-20% of water.
2. The waterborne fluorocarbon paint for making paint film of claim 1, wherein the crosslinking assistant is isophorone diisocyanate.
3. The waterborne fluorocarbon paint for preparing paint films as claimed in claim 1, wherein the antifouling auxiliary agent is prepared from propylene glycol methyl ether acetate and cyclohexyl acrylate according to a weight ratio of 0.6-1.0: 1.
4. The waterborne fluorocarbon paint for making paint film of claim 1, wherein the film forming aid is propylene glycol methyl ether.
5. The waterborne fluorocarbon paint for making paint film according to claim 1, wherein the defoamer is Deform 5500.
6. The waterborne fluorocarbon paint for paint film production of claim 1, further comprising 1-4 wt% of a dispersant, wherein the dispersant is at least one of triethylhexylphosphoric acid, methylpentanol, and guar gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431575.9A CN113214709A (en) | 2021-04-21 | 2021-04-21 | Water-based fluorocarbon paint for preparing paint film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110431575.9A CN113214709A (en) | 2021-04-21 | 2021-04-21 | Water-based fluorocarbon paint for preparing paint film |
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| Publication Number | Publication Date |
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| CN113214709A true CN113214709A (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110431575.9A Pending CN113214709A (en) | 2021-04-21 | 2021-04-21 | Water-based fluorocarbon paint for preparing paint film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478582A (en) * | 2023-03-30 | 2023-07-25 | 珠海市氟特科技有限公司 | Waterborne thermosetting ether FEVE fluorine coating, preparation method and aluminum metal substrate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596057A (en) * | 1993-08-09 | 1997-01-21 | Hoechst Aktiengesellschaft | Copolymers, their preparation, and their use in high-solids coating compositions |
| CN106590107A (en) * | 2016-12-26 | 2017-04-26 | 怀宁县三禾保洁服务有限公司 | Water-borne high wear resistant fluorocarbon paint used for lintel refurbishment and production technology thereof |
| CN110229602A (en) * | 2019-05-30 | 2019-09-13 | 江门市威富科技有限公司 | Fluorocarbon coating and preparation method thereof and coating process |
-
2021
- 2021-04-21 CN CN202110431575.9A patent/CN113214709A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596057A (en) * | 1993-08-09 | 1997-01-21 | Hoechst Aktiengesellschaft | Copolymers, their preparation, and their use in high-solids coating compositions |
| CN106590107A (en) * | 2016-12-26 | 2017-04-26 | 怀宁县三禾保洁服务有限公司 | Water-borne high wear resistant fluorocarbon paint used for lintel refurbishment and production technology thereof |
| CN110229602A (en) * | 2019-05-30 | 2019-09-13 | 江门市威富科技有限公司 | Fluorocarbon coating and preparation method thereof and coating process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478582A (en) * | 2023-03-30 | 2023-07-25 | 珠海市氟特科技有限公司 | Waterborne thermosetting ether FEVE fluorine coating, preparation method and aluminum metal substrate |
| CN116478582B (en) * | 2023-03-30 | 2024-04-09 | 珠海市氟特科技有限公司 | Waterborne thermosetting ether FEVE fluorine coating, preparation method and aluminum metal substrate |
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