CN112341932A - Antifouling weather-resistant polysiloxane coating - Google Patents
Antifouling weather-resistant polysiloxane coating Download PDFInfo
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- CN112341932A CN112341932A CN202011227566.XA CN202011227566A CN112341932A CN 112341932 A CN112341932 A CN 112341932A CN 202011227566 A CN202011227566 A CN 202011227566A CN 112341932 A CN112341932 A CN 112341932A
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides an antifouling weather-resistant polysiloxane coating, and relates to the technical field of industrial coatings. The antifouling weather-resistant polysiloxane coating consists of a component A and a component B in parts by weight; wherein, the component A comprises the following components: 30-35% of a reaction product of bisphenol A and bisphenol E, 0.5-0.8% of a dispersing agent, 25-35% of titanium dioxide, 12-20% of barium sulfate, 1-2% of a rheological additive, 0.5-1% of polyamide resin, 1-2% of a light stabilizer and 10-15% of a solvent. According to the invention, the bisphenol type matched resin is adopted to enable a paint film to be more compact, the resin has excellent water-resistant, salt-resistant and chemical-resistant anti-corrosion performances after film forming, a coating contains a large number of Si-O chemical bonds, ultraviolet irradiation is not broken, the resin has strong weather resistance, compared with the traditional polyurethane and fluorocarbon finish paint, the solvent is less, the solid content is higher, the resin has the characteristics of environmental protection and safety, and meanwhile, the resin has excellent low surface energy after film forming, and the characteristics of hydrophobicity, surface self-cleaning and no contamination are achieved.
Description
Technical Field
The invention relates to the technical field of industrial coatings, in particular to an antifouling weather-resistant polysiloxane coating.
Background
In the fields of chemical storage tanks, pipelines, bridge steel structures, marine equipment, energy and power, equipment manufacturing and the like, devices need to be sprayed with coatings for corrosion prevention, in order to improve the durability of finish in industrial anticorrosive coatings, a lot of attempts are made by various coating companies all over the world, currently, high-weather-resistance finish used in China mainly comprises aliphatic polyurethane finish and fluorocarbon finish, the solvent content in the finish is large, the finish is not environment-friendly and safe enough, the damage to the health of operators is easy to cause, the corrosion resistance and weather resistance are not good enough, and some polysiloxane finishes are used in several international companies only in recent years.
Through intensive research, the bisphenol type complex resin is added to enable a paint film to be more compact, the resin has excellent water-resistant, salt-resistant and chemical-resistant anti-corrosion performances after film forming, excellent mechanical performances such as good flexibility and impact resistance, the special property of the resin gives a coating better light and color retention performance, and the solvent content is reduced to meet the requirement of environmental protection.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides an antifouling weather-resistant polysiloxane coating, which solves the defects and shortcomings in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the antifouling weather-resistant polysiloxane coating consists of a component A and a component B in parts by weight;
wherein, the component A comprises the following components: 30-35% of a reaction product of bisphenol A and bisphenol E, 0.5-0.8% of a dispersing agent, 25-35% of titanium dioxide, 12-20% of barium sulfate, 1-2% of a rheological additive, 0.5-1% of polyamide resin, 1-2% of a light stabilizer and 10-15% of a solvent;
wherein, the component B comprises the following components: 55-65% of amino siloxane resin, 30-35% of methyl polysiloxane resin and 5-10% of solvent.
The preparation method of the antifouling weather-resistant polysiloxane coating comprises the following preparation steps:
s1, preparing raw materials which are divided into a component A and a component B;
wherein, the component A is: bisphenol A and bisphenol E reaction products, a dispersing agent, titanium dioxide, barium sulfate, a rheological additive, polyamide resin, a light stabilizer and a solvent;
wherein, the component B is: aminosiloxane resin, methyl polysiloxane resin and solvent.
S2, preparing a component A; adding a dispersant into a part of reaction products of the bisphenol A and the bisphenol E in the component A and stirring the mixture to a uniform phase;
s3, adding titanium dioxide, barium sulfate and rheological additive into the mixed slurry of S2, dispersing at high speed to a uniform phase, and pouring into a grinder for grinding.
And S4, injecting the mixed and ground slurry of S3 into a stirrer, cooling to room temperature, adding the rest of bisphenol A and bisphenol E reaction products, polyamide resin, light stabilizer, solvent and rheological aid, and stirring uniformly at a slow speed to obtain the main agent.
S5: preparing a component B: adding aminosiloxane into solvent and stirring until a uniform phase is formed;
s6: to the mixed slurry prepared in S5, a curing agent in which methylpolysiloxane was slowly stirred to a uniform phase was added.
S7, pouring the component A finished product and the component B finished product into a reaction kettle, and stirring and mixing uniformly to obtain the antifouling weather-resistant polysiloxane coating.
Preferably, the slurry in S2 is stirred during stirring until the temperature of the slurry reaches 75 ℃, and the stirring is stopped.
Preferably, the grinding fineness of the slurry in S2 is less than or equal to 30 microns.
(III) advantageous effects
The invention provides an antifouling weather-resistant polysiloxane coating. The method has the following beneficial effects:
1. according to the invention, the bisphenol type matched resin is added to enable a paint film to be more compact, the resin has excellent water-resistant, salt-resistant and chemical-resistant anti-corrosion performances after film formation, and excellent mechanical performances such as good flexibility and impact resistance, and the special property of the resin gives a coating better light and color retention performances.
2. According to the invention, the coating in the antifouling weather-resistant polysiloxane coating contains a large amount of Si-O chemical bonds, and ultraviolet irradiation is not broken, so that the coating is not cracked or pulverized, has strong weather resistance, has less solvent compared with the traditional polyurethane and fluorocarbon finish paint, has higher solid content, and has the characteristics of environmental protection and safety, the aging resistance time measured by an actual ultraviolet aging test can reach 3000 hours, and meanwhile, the coating has excellent low surface energy after film forming, and the characteristics of hydrophobicity, surface self-cleaning and no contamination are achieved.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, 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.
The first embodiment is as follows:
the embodiment of the invention provides an antifouling weather-resistant polysiloxane coating which is composed of a component A and a component B in parts by weight;
wherein, the component A comprises the following components: 30% of bisphenol A and bisphenol E reaction product, 0.5% of dispersing agent, 35% of titanium dioxide, 18% of barium sulfate, 1% of rheological additive, 0.5% of polyamide resin, 1% of light stabilizer and 14% of solvent;
wherein, the component B comprises the following components: 55% of amino siloxane resin, 35% of methyl polysiloxane resin and 10% of solvent.
The preparation method of the antifouling weather-resistant polysiloxane coating comprises the following preparation steps:
s1, preparing raw materials which are divided into a component A and a component B;
wherein, the component A is: bisphenol A and bisphenol E reaction products, a dispersing agent, titanium dioxide, barium sulfate, a rheological additive, polyamide resin, a light stabilizer and a solvent;
wherein, the component B is: aminosiloxane resin, methyl polysiloxane resin and solvent.
S2, preparing a component A; adding a dispersant into a part of reaction products of the bisphenol A and the bisphenol E in the component A and stirring the mixture to a uniform phase;
s3, adding titanium dioxide, barium sulfate and rheological additive into the mixed slurry of S2, dispersing at high speed to a uniform phase, and pouring into a grinder for grinding.
And S4, injecting the mixed and ground slurry of S3 into a stirrer, cooling to room temperature, adding the rest of bisphenol A and bisphenol E reaction products, polyamide resin, light stabilizer, solvent and rheological aid, and stirring uniformly at a slow speed to obtain the main agent.
S5: preparing a component B: adding aminosiloxane into solvent and stirring until a uniform phase is formed;
s6: to the mixed slurry prepared in S5, a curing agent in which methylpolysiloxane was slowly stirred to a uniform phase was added.
S7, pouring the component A finished product and the component B finished product into a reaction kettle, and stirring and mixing uniformly to obtain the antifouling weather-resistant polysiloxane coating.
Example two:
the embodiment of the invention provides an antifouling weather-resistant polysiloxane coating which is composed of a component A and a component B in parts by weight;
wherein, the component A comprises the following components: 34% of bisphenol A and bisphenol E reaction product, 0.7% of dispersing agent, 30% of titanium dioxide, 17% of barium sulfate, 2% of rheological additive, 0.7% of polyamide resin, 1.6% of light stabilizer and 14% of solvent;
wherein, the component B comprises the following components: 61% of amino siloxane resin, 32% of methyl polysiloxane resin and 7% of solvent.
The preparation method of the antifouling weather-resistant polysiloxane coating comprises the following preparation steps:
s1, preparing raw materials which are divided into a component A and a component B;
wherein, the component A is: bisphenol A and bisphenol E reaction products, a dispersing agent, titanium dioxide, barium sulfate, a rheological additive, polyamide resin, a light stabilizer and a solvent;
wherein, the component B is: aminosiloxane resin, methyl polysiloxane resin and solvent.
S2, preparing a component A; adding a dispersant into a part of reaction products of the bisphenol A and the bisphenol E in the component A and stirring the mixture to a uniform phase;
s3, adding titanium dioxide, barium sulfate and rheological additive into the mixed slurry of S2, dispersing at high speed to a uniform phase, and pouring into a grinder for grinding.
And S4, injecting the mixed and ground slurry of S3 into a stirrer, cooling to room temperature, adding the rest of bisphenol A and bisphenol E reaction products, polyamide resin, light stabilizer, solvent and rheological aid, and stirring uniformly at a slow speed to obtain the main agent.
S5: preparing a component B: adding aminosiloxane into solvent and stirring until a uniform phase is formed;
s6: to the mixed slurry prepared in S5, a curing agent in which methylpolysiloxane was slowly stirred to a uniform phase was added.
S7, pouring the component A finished product and the component B finished product into a reaction kettle, and stirring and mixing uniformly to obtain the antifouling weather-resistant polysiloxane coating.
Example three:
the embodiment of the invention provides an antifouling weather-resistant polysiloxane coating which is composed of a component A and a component B in parts by weight;
wherein, the component A comprises the following components: 35% of bisphenol A and bisphenol E reaction product, 0.8% of dispersing agent, 31% of titanium dioxide, 17% of barium sulfate, 2% of rheological additive, 1% of polyamide resin, 1.2% of light stabilizer and 12% of solvent;
wherein, the component B comprises the following components: 63% of amino siloxane resin, 30% of methyl polysiloxane resin and 7% of solvent.
The preparation method of the antifouling weather-resistant polysiloxane coating comprises the following preparation steps:
s1, preparing raw materials which are divided into a component A and a component B;
wherein, the component A is: bisphenol A and bisphenol E reaction products, a dispersing agent, titanium dioxide, barium sulfate, a rheological additive, polyamide resin, a light stabilizer and a solvent;
wherein, the component B is: aminosiloxane resin, methyl polysiloxane resin and solvent.
S2, preparing a component A; adding a dispersant into a part of reaction products of the bisphenol A and the bisphenol E in the component A and stirring the mixture to a uniform phase;
s3, adding titanium dioxide, barium sulfate and rheological additive into the mixed slurry of S2, dispersing at high speed to a uniform phase, and pouring into a grinder for grinding.
And S4, injecting the mixed and ground slurry of S3 into a stirrer, cooling to room temperature, adding the rest of bisphenol A and bisphenol E reaction products, polyamide resin, light stabilizer, solvent and rheological aid, and stirring uniformly at a slow speed to obtain the main agent.
S5: preparing a component B: adding aminosiloxane into solvent and stirring until a uniform phase is formed;
s6: to the mixed slurry prepared in S5, a curing agent in which methylpolysiloxane was slowly stirred to a uniform phase was added.
S7, pouring the component A finished product and the component B finished product into a reaction kettle, and stirring and mixing uniformly to obtain the antifouling weather-resistant polysiloxane coating.
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 (4)
1. The antifouling weather-resistant polysiloxane coating is characterized in that: the antifouling weather-resistant polysiloxane coating consists of a component A and a component B in parts by weight;
wherein, the component A comprises the following components: 30-35% of a reaction product of bisphenol A and bisphenol E, 0.5-0.8% of a dispersing agent, 25-35% of titanium dioxide, 12-20% of barium sulfate, 1-2% of a rheological additive, 0.5-1% of polyamide resin, 1-2% of a light stabilizer and 10-15% of a solvent;
wherein, the component B comprises the following components: 55-65% of amino siloxane resin, 30-35% of methyl polysiloxane resin and 5-10% of solvent.
2. The preparation method of the antifouling weather-resistant polysiloxane coating is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
s1, preparing raw materials which are divided into a component A and a component B;
wherein, the component A is: bisphenol A and bisphenol E reaction products, a dispersing agent, titanium dioxide, barium sulfate, a rheological additive, polyamide resin, a light stabilizer and a solvent;
wherein, the component B is: aminosiloxane resin, methyl polysiloxane resin and solvent.
S2, preparing a component A; adding a dispersant into a part of reaction products of the bisphenol A and the bisphenol E in the component A and stirring the mixture to a uniform phase;
s3, adding titanium dioxide, barium sulfate and rheological additive into the mixed slurry of S2, dispersing at high speed to a uniform phase, and pouring into a grinder for grinding.
And S4, injecting the mixed and ground slurry of S3 into a stirrer, cooling to room temperature, adding the rest of bisphenol A and bisphenol E reaction products, polyamide resin, light stabilizer, solvent and rheological aid, and stirring uniformly at a slow speed to obtain the main agent.
S5: preparing a component B: adding aminosiloxane into solvent and stirring until a uniform phase is formed;
s6: to the mixed slurry prepared in S5, a curing agent in which methylpolysiloxane was slowly stirred to a uniform phase was added.
S7, pouring the component A finished product and the component B finished product into a reaction kettle, and stirring and mixing uniformly to obtain the antifouling weather-resistant polysiloxane coating.
3. The antifouling weatherable polysiloxane coating according to claim 2, characterized in that: and in the S2, the slurry is stirred during stirring until the temperature of the slurry reaches 75 ℃, and the stirring is stopped.
4. The antifouling weatherable polysiloxane coating according to claim 2, characterized in that: and the grinding fineness of the slurry in the S2 is less than or equal to 30 micrometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011227566.XA CN112341932A (en) | 2020-10-29 | 2020-10-29 | Antifouling weather-resistant polysiloxane coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011227566.XA CN112341932A (en) | 2020-10-29 | 2020-10-29 | Antifouling weather-resistant polysiloxane coating |
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| CN112341932A true CN112341932A (en) | 2021-02-09 |
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| CN202011227566.XA Pending CN112341932A (en) | 2020-10-29 | 2020-10-29 | Antifouling weather-resistant polysiloxane coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114836127A (en) * | 2022-03-31 | 2022-08-02 | 湖南省德谦新材料有限公司 | High-toughness polysiloxane composite coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525519A (en) * | 2009-03-30 | 2009-09-09 | 中山大桥化工集团有限公司 | Polysiloxane coating composition |
| CN103602220A (en) * | 2013-11-14 | 2014-02-26 | 中国海洋石油总公司 | Siloxane hybrid anticorrosive paint |
| CN104245867A (en) * | 2012-03-09 | 2014-12-24 | Ppg工业俄亥俄公司 | Epoxy siloxane coating compositions |
| CN110951333A (en) * | 2019-12-18 | 2020-04-03 | 上海海隆赛能新材料有限公司 | Environment-friendly antifouling paint |
-
2020
- 2020-10-29 CN CN202011227566.XA patent/CN112341932A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525519A (en) * | 2009-03-30 | 2009-09-09 | 中山大桥化工集团有限公司 | Polysiloxane coating composition |
| CN104245867A (en) * | 2012-03-09 | 2014-12-24 | Ppg工业俄亥俄公司 | Epoxy siloxane coating compositions |
| CN103602220A (en) * | 2013-11-14 | 2014-02-26 | 中国海洋石油总公司 | Siloxane hybrid anticorrosive paint |
| CN110951333A (en) * | 2019-12-18 | 2020-04-03 | 上海海隆赛能新材料有限公司 | Environment-friendly antifouling paint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114836127A (en) * | 2022-03-31 | 2022-08-02 | 湖南省德谦新材料有限公司 | High-toughness polysiloxane composite coating and preparation method thereof |
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Application publication date: 20210209 |
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