CN114196306A - High-tolerance insulating coating for spraying and preparation method thereof - Google Patents

High-tolerance insulating coating for spraying and preparation method thereof Download PDF

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Publication number
CN114196306A
CN114196306A CN202111481037.7A CN202111481037A CN114196306A CN 114196306 A CN114196306 A CN 114196306A CN 202111481037 A CN202111481037 A CN 202111481037A CN 114196306 A CN114196306 A CN 114196306A
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CN
China
Prior art keywords
spraying
tolerance
resin
combination
insulating paint
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Pending
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CN202111481037.7A
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Chinese (zh)
Inventor
王海珍
吴根强
吴木国
陈昌荣
刘陆宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Fullde Electric Co Ltd
Guangdong Fullde Electronics Co Ltd
Zhuzhou Fullde Rail Transit Research Institute Co Ltd
Original Assignee
Hunan Fullde Electric Co Ltd
Guangdong Fullde Electronics Co Ltd
Zhuzhou Fullde Rail Transit Research Institute Co Ltd
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Application filed by Hunan Fullde Electric Co Ltd, Guangdong Fullde Electronics Co Ltd, Zhuzhou Fullde Rail Transit Research Institute Co Ltd filed Critical Hunan Fullde Electric Co Ltd
Priority to CN202111481037.7A priority Critical patent/CN114196306A/en
Publication of CN114196306A publication Critical patent/CN114196306A/en
Pending legal-status Critical Current

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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
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • 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
    • C09D7/47—Levelling agents
    • 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
    • C09D7/61—Additives non-macromolecular inorganic
    • 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
    • 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
    • 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
    • C09D7/80—Processes for incorporating ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide

Abstract

The invention relates to the technical field of electrical engineering, in particular to a high-tolerance insulating coating for spraying and a preparation method thereof, wherein the high-tolerance insulating coating for spraying comprises the following raw materials in percentage by weight, and organic silicon modified epoxy resin is 5-30%; 5 to 20 percent of polyisocyanate; 10-20% of titanium dioxide, wherein the particle size of the titanium dioxide is 10-200 nm; 3% -5% of metal organic salt; 3 to 5 percent of wear-resisting agent; 30-50% of environment-friendly solvent, and the high-tolerance insulating paint for spraying has the advantages of good leveling property, high pressure resistance, high temperature resistance and good wear resistance, and the preparation method has the advantage of easy operation.

Description

High-tolerance insulating coating for spraying and preparation method thereof
Technical Field
The invention relates to the technical field of electrical engineering, in particular to a high-tolerance insulating coating for spraying and a preparation method thereof.
Background
High-power and high-voltage loads generally need to be coated with a layer of insulating coating to improve the environmental adaptability, safety and reliability of the loads. Therefore, the technical requirements for insulating coatings for use in high power, high voltage load environments typically include: the insulating coating has strong adhesive force, wear resistance, high pressure resistance, high temperature resistance, high humidity resistance, solvent resistance and the like, and can be only sprayed during the construction of the surface of a large load, so the insulating coating also has good leveling property and wetting property.
However, the insulating coating used in a high-power and high-voltage load environment in the current market still has the defects of 1, and the thickness of a sprayed insulating layer is not uniform due to lack of leveling property; 2. the wear resistance is not enough to cause the damage of the insulating layer and the like of the product in the carrying process, and the reliability and the safety of the product are seriously influenced.
Disclosure of Invention
One of the purposes of the invention is to provide the high-tolerance insulating paint for spraying, which has the advantages of good leveling property, high pressure resistance, high temperature resistance and good wear resistance, and the defects in the prior art are avoided.
The second purpose of the invention is to provide a preparation method of the high-tolerance insulating paint for spraying.
In order to achieve one of the above purposes, the invention provides the following technical scheme:
provides a high-tolerance insulating coating for spraying, which consists of the following raw materials in percentage by weight,
Figure BDA0003394915640000011
the particle size of the titanium dioxide is 10 nm-200 nm;
in some embodiments, the silicone modified epoxy resin is any one of or a combination of two or more of SJ-804 resin, SH9607 resin, RE620 resin, OFS6018 resin.
In some embodiments, the polyisocyanate is any one or combination of two or more of PM200 isocyanate, 44V20Lv isocyanate, Basonat HI100ap isocyanate.
In some embodiments, the metal organic salt is any one or a combination of two or more of cobalt acetate, copper octoate, manganese sulfamate.
In some embodiments, the anti-wear agent is any one or a combination of two or more of PTFE (polytetrafluoroethylene), PVDF (polyvinylidene fluoride), polyethylene.
In some embodiments, the environmentally friendly solvent is any one or a combination of two or more of carbitol acetate, DBE (dibasic ester), butyl acetate, amyl acetate, and toluene.
The high-tolerance insulating coating for spraying has the beneficial effects that:
(1) the high-tolerance insulating coating for spraying contains the nano titanium dioxide, the high-pressure resistance characteristic of the coating is improved and the anti-sagging characteristic of the coating is improved due to the addition of the nano titanium dioxide, so that the leveling property of the coating is improved, the thickness of the insulating layer can be uniform even in a spraying mode, and the obtained coating is more suitable for a high-power and high-pressure load environment.
(2) The high-tolerance insulating coating for spraying contains organic silicon modified epoxy resin and polyisocyanate, and after the organic silicon modified epoxy resin reacts with the polyisocyanate, the moisture resistance and the solvent resistance of the coating are greatly improved, so that the high-tolerance insulating coating is more suitable for high-power and high-pressure load in outdoor environment for a long time.
(3) The high-tolerance insulating coating for spraying contains the wear-resisting agent, and the leveling property of the coating and the wear resistance of the cured coating are improved by the wear-resisting agent.
(4) The high-tolerance insulating coating for spraying contains the metal organic salt, the metal organic salt is used for not only playing a role in color matching, but also reducing the surface tension of the coating due to the ions of the metal organic salt, so that the permeability of the coating is improved, and the leveling property of the coating after spraying is further improved.
In order to achieve the second purpose, the invention provides the following technical scheme:
the preparation method of the high-tolerance insulating coating for spraying comprises the following steps:
s1, fully and uniformly mixing titanium dioxide, metal organic salt, an abrasion-resistant agent and an environment-friendly solvent, and then sanding for 30-120 min in a sand mill at a rotating speed of 500-1000 rpm for full dispersion.
And S2, mixing the slurry subjected to sanding dispersion with the organic silicon modified epoxy resin and the polyisocyanate, stirring in a container at the rotating speed of 80-100 rpm for 30-120 min, and fully and uniformly mixing.
And S3, filtering the uniformly mixed slurry by using a screen.
In some embodiments, the mesh size of the screen is 600 to 800 mesh.
The preparation method of the high-tolerance insulating coating for spraying has the beneficial effects that:
the preparation method firstly disperses the titanium dioxide, the metal organic salt, the wear-resisting agent and the environment-friendly solvent, and then mixes the dispersed slurry with the organic silicon modified epoxy resin and the polyisocyanate.
Detailed Description
The present invention will be described in detail with reference to specific examples.
Example 1
The invention discloses a high-tolerance insulating coating for spraying, which consists of the following raw materials in percentage by weight, namely 30% of organic silicon modified epoxy resin; 5% of polyisocyanate and 20% of titanium dioxide, wherein the particle size of the titanium dioxide is 10 nm-200 nm; 5% of metal organic salt; 5% of a wear-resisting agent; 35 percent of environment-friendly solvent.
In this example, the silicone-modified epoxy resin was a combination of SJ-804 resin and SH9607 resin. SJ-804 and SH9607 are types; SJ-804 resin and SH9607 resin have better high-temperature resistance.
In this example, the polyisocyanate is a combination of PM200 isocyanate, Basonat HI100ap isocyanate. PM200 and Basonat HI100ap are models; PM200 isocyanate, Basonat HI100ap isocyanate have better tolerance.
In this embodiment, the metal organic salt is a combination of cobalt acetate and manganese sulfamate.
In this embodiment, the anti-wear agent is a combination of PTFE, PVDF, and polyethylene. PTFE, PVDF and polyethylene have better wear resistance and flow property.
In this embodiment, the environmentally friendly solvent is a combination of carbitol acetate and DBE.
The preparation method of the high-tolerance insulating coating for spraying comprises the following steps:
s1, fully and uniformly mixing titanium dioxide, metal organic salt, an abrasion-resistant agent and an environment-friendly solvent, and then sanding for 30min in a sand mill at a rotating speed of 500rpm to fully disperse.
And S2, mixing the slurry subjected to sanding dispersion with the organic silicon modified epoxy resin and the polyisocyanate, stirring the mixture in a container at the rotating speed of 80rpm for 30min, and fully and uniformly mixing the mixture.
And S3, filtering the uniformly mixed slurry by using a screen.
In this embodiment, the mesh number of the screen is 600 meshes.
Example 2
The invention discloses a high-tolerance insulating coating for spraying, which consists of the following raw materials in percentage by weight, 24 percent of organosilicon modified epoxy resin; 20% of polyisocyanate; 20% of titanium dioxide, wherein the particle size of the titanium dioxide is 10 nm-200 nm; 3% of metal organic salt; 3% of wear-resisting agent; 30 percent of environment-friendly solvent.
In the present embodiment, the silicone-modified epoxy resin is a combination of an RE620 resin and an OFS6018 resin. RE620 and OFS6018 are types, and RE620 resin and OFS6018 resin have better high-temperature resistance.
In this example, the polyisocyanate was Basonat HI100ap isocyanate. Basonat HI100ap is the model number, and the isocyanate of Basonat HI100ap has better tolerance.
In this embodiment, the metal organic salt is a combination of cobalt acetate, copper octoate, and manganese sulfamate.
In this embodiment, the anti-wear agent is polyethylene. Polyethylene has good abrasion resistance and flow property.
In this embodiment, the environmentally friendly solvent is a combination of butyl acetate, amyl acetate, and toluene.
The preparation method of the high-tolerance insulating coating for spraying comprises the following steps:
s1, fully and uniformly mixing titanium dioxide, metal organic salt, an anti-wear agent and an environment-friendly solvent, and then sanding for 120min in a sand mill at the rotating speed of 1000rpm for full dispersion.
And S2, mixing the slurry subjected to sanding dispersion with the organic silicon modified epoxy resin and the polyisocyanate, stirring for 120min in a container at the rotating speed of 100rpm, and fully and uniformly mixing.
And S3, filtering the uniformly mixed slurry by using a screen.
In this embodiment, the mesh number of the screen is 800 meshes.
Example 3
The invention discloses a high-tolerance insulating coating for spraying, which consists of the following raw materials in percentage by weight, 9% of organosilicon modified epoxy resin; 19% of polyisocyanate; 14% of titanium dioxide, wherein the particle size of the titanium dioxide is 10 nm-200 nm; 4% of metal organic salt; 4% of a wear-resisting agent; 50 percent of environment-friendly solvent.
In this example, the silicone-modified epoxy resin was SH9607 resin. SH9607 is a model number, and SH9607 resin has better high-temperature resistance.
In this example, the polyisocyanate was 44V20Lv isocyanate. The 44V20Lv isocyanate has better tolerance.
In this embodiment, the metal organic salt is a combination of cobalt acetate, copper octoate, and manganese sulfamate.
In this embodiment, the anti-wear agent is a combination of PTFE, PVDF, and polyethylene. PTFE, PVDF and polyethylene have better wear resistance and flow property.
In this embodiment, the environmentally friendly solvent is a combination of carbitol acetate, DBE, butyl acetate, amyl acetate, and toluene.
The preparation method of the high-tolerance insulating coating for spraying comprises the following steps:
s1, fully and uniformly mixing titanium dioxide, metal organic salt, an abrasion-resistant agent and an environment-friendly solvent, and then sanding for 90min in a sand mill at the rotating speed of 800rpm for full dispersion.
And S2, mixing the slurry subjected to sanding dispersion with the organic silicon modified epoxy resin and the polyisocyanate, stirring the mixture in a container at the rotating speed of 90rpm for 100min, and fully and uniformly mixing the mixture.
And S3, filtering the uniformly mixed slurry by using a screen.
In this embodiment, the mesh number of the screen is 700 meshes.
Example 4
The invention discloses a high-tolerance insulating coating for spraying, which consists of the following raw materials in percentage by weight, 20% of organosilicon modified epoxy resin; 18% of polyisocyanate; 5% of titanium dioxide, wherein the particle size of the titanium dioxide is 10 nm-200 nm; 3% of metal organic salt; 4% of a wear-resisting agent; 50 percent of environment-friendly solvent.
In this example, the silicone-modified epoxy resin was SH9607 resin. SH9607 is a model number, and SH9607 resin has better high-temperature resistance.
In this example, the polyisocyanate is PM200 isocyanate. The PM200 isocyanate has better tolerance.
In this embodiment, the metal organic salt is a combination of cobalt acetate, copper octoate, and manganese sulfamate.
In this embodiment, the anti-wear agent is a combination of PTFE, PVDF, and polyethylene. PTFE, PVDF and polyethylene have better wear resistance and flow property.
In this embodiment, the environmentally friendly solvent is a combination of carbitol acetate, DBE, butyl acetate, amyl acetate, and toluene.
The preparation method of the high-tolerance insulating coating for spraying comprises the following steps:
s1, fully and uniformly mixing titanium dioxide, metal organic salt, an abrasion-resistant agent and an environment-friendly solvent, and then sanding for 90min in a sand mill at the rotating speed of 800rpm for full dispersion.
And S2, mixing the slurry subjected to sanding dispersion with the organic silicon modified epoxy resin and the polyisocyanate, stirring the mixture in a container at the rotating speed of 90rpm for 100min, and fully and uniformly mixing the mixture.
And S3, filtering the uniformly mixed slurry by using a screen.
In this embodiment, the mesh number of the screen is 700 meshes.
Example 5
The invention discloses a high-tolerance insulating coating for spraying, which consists of the following raw materials in percentage by weight, 5% of organosilicon modified epoxy resin; 18% of polyisocyanate; 20% of titanium dioxide, wherein the particle size of the titanium dioxide is 10 nm-200 nm; 3% of metal organic salt; 4% of a wear-resisting agent; 50 percent of environment-friendly solvent.
In this embodiment, the silicone-modified epoxy resin is any one of, or a combination of two or more of, SJ-804 resin, SH9607 resin, RE620 resin, and OFS6018 resin. SJ-804 resin, SH9607 resin, RE620 resin and OFS6018 resin are model numbers, and SJ-804 resin, SH9607 resin, RE620 resin and OFS6018 resin have good high-temperature resistance.
In this embodiment, the polyisocyanate is any one or a combination of two or more of PM200 isocyanate, 44V20Lv isocyanate, Basonat HI100ap isocyanate. PM200, 44V20Lv and Basonat HI100ap are models, and the PM200 isocyanate, 44V20Lv isocyanate and Basonat HI100ap isocyanate have better tolerance.
In this embodiment, the metal organic salt is any one or a combination of two or more of cobalt acetate, copper octoate, and manganese sulfamate.
In this embodiment, the anti-wear agent is any one or a combination of two or more of PTFE, PVDF, and polyethylene. PTFE, PVDF and polyethylene have better wear resistance and flow property.
In this embodiment, the environmentally friendly solvent is any one or a combination of two or more of carbitol acetate, DBE, butyl acetate, amyl acetate, and toluene.
The preparation method of the high-tolerance insulating coating for spraying comprises the following steps:
s1, fully and uniformly mixing titanium dioxide, metal organic salt, an abrasion-resistant agent and an environment-friendly solvent, and then sanding for 90min in a sand mill at the rotating speed of 800rpm for full dispersion.
And S2, mixing the slurry subjected to sanding dispersion with the organic silicon modified epoxy resin and the polyisocyanate, stirring the mixture in a container at the rotating speed of 90rpm for 100min, and fully and uniformly mixing the mixture.
And S3, filtering the uniformly mixed slurry by using a screen.
In this embodiment, the mesh number of the screen is 700 meshes.
And (3) performance testing:
the raw materials in table 1 were used,
name of raw material Mass percent
20nm titanium dioxide 20
PTFE 3
Copper octoate 3
Acetic acid pentyl ester 40
SJ-804 20
PM200 14
And the preparation method comprises the following steps:
s1, fully and uniformly mixing titanium oxide, PTFE, copper octoate and amyl acetate, and sanding for 120min in a sand mill at 1000rpm to fully disperse.
And S2, mixing the slurry subjected to sanding dispersion with SJ-804 and PM200, stirring for 120min in a stirring barrel at 100rpm, and fully and uniformly mixing.
And S3, filtering the uniformly mixed slurry by using a 800-mesh screen to obtain the coating.
The prepared coating is sprayed on the surface of a load box to obtain a film layer, and then the flatness, the high temperature resistance, the high pressure resistance and the wear resistance of the film layer are detected, wherein the detection result is as follows:
the surface of the film layer is uniform and flat, the breakdown strength is up to 10KV/mm after curing for 180-30 min, and no obvious defect can occur after the film layer is subjected to 10000 times of paper tape friction experiments.
Therefore, the high-tolerance insulating coating for spraying has the characteristics of good leveling property, high pressure resistance, high temperature resistance and good wear resistance, and is suitable for application environments with high power and high load.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (8)

1. A high-tolerance insulating coating for spraying is characterized in that: consists of the following raw materials in percentage by weight,
Figure FDA0003394915630000011
2. the high-resistance insulating paint for spraying according to claim 1, which is characterized in that: the organic silicon modified epoxy resin is any one or the combination of more than two of SJ-804 resin, SH9607 resin, RE620 resin and OFS6018 resin.
3. The high-resistance insulating paint for spraying according to claim 1, which is characterized in that: the polyisocyanate is any one or the combination of more than two of PM200 isocyanate, 44V20Lv isocyanate and Basonat HI100ap isocyanate.
4. The high-resistance insulating paint for spraying according to claim 1, which is characterized in that: the metal organic salt is any one or combination of more than two of cobalt acetate, copper octoate and manganese sulfamate.
5. The high-resistance insulating paint for spraying according to claim 1, which is characterized in that: the wear-resisting agent is one or the combination of more than two of PTFE, PVDF and polyethylene.
6. The high-resistance insulating paint for spraying according to claim 1, which is characterized in that: the environment-friendly solvent is any one or the combination of more than two of carbitol acetate, DBE, butyl acetate, amyl acetate and toluene.
7. A preparation method of high-tolerance insulating paint for spraying is characterized by comprising the following steps: preparing the high-tolerance insulating paint for spraying according to any one of claims 1 to 6, which comprises the following steps:
s1, fully and uniformly mixing titanium dioxide, metal organic salt, an abrasion-resistant agent and an environment-friendly solvent, and then sanding for 30-120 min in a sand mill at a rotating speed of 500-1000 rpm for full dispersion;
s2, mixing the slurry after sanding and dispersing with organic silicon modified epoxy resin and polyisocyanate, stirring for 30-120 min at the rotating speed of 80-100 rpm in a container, and fully and uniformly mixing;
and S3, filtering the uniformly mixed slurry by using a screen.
8. The method for preparing the insulating paint with high resistance for spraying according to claim 7, wherein the method comprises the following steps: the mesh number of the screen is 600 meshes to 800 meshes.
CN202111481037.7A 2021-12-06 2021-12-06 High-tolerance insulating coating for spraying and preparation method thereof Pending CN114196306A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848964A (en) * 2007-06-12 2010-09-29 纳幕尔杜邦公司 Insulation coating composition for electrical steel
CN104403544A (en) * 2014-12-11 2015-03-11 广州慧谷化学有限公司 Water-based heat transfer printing release coating, and preparation method and application thereof
CN107573841A (en) * 2017-09-29 2018-01-12 南京晟强橡塑有限公司 A kind of SPM valve door high resiliency finishing agent
CN108864794A (en) * 2018-07-11 2018-11-23 合肥铭佑高温技术有限公司 A kind of coatings of electrical equipment and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848964A (en) * 2007-06-12 2010-09-29 纳幕尔杜邦公司 Insulation coating composition for electrical steel
CN104403544A (en) * 2014-12-11 2015-03-11 广州慧谷化学有限公司 Water-based heat transfer printing release coating, and preparation method and application thereof
CN107573841A (en) * 2017-09-29 2018-01-12 南京晟强橡塑有限公司 A kind of SPM valve door high resiliency finishing agent
CN108864794A (en) * 2018-07-11 2018-11-23 合肥铭佑高温技术有限公司 A kind of coatings of electrical equipment and preparation method thereof

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Application publication date: 20220318