CN111440507A - Insulating coating and preparation method thereof, metal substrate and semiconductor device - Google Patents
Insulating coating and preparation method thereof, metal substrate and semiconductor device Download PDFInfo
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- CN111440507A CN111440507A CN202010302972.1A CN202010302972A CN111440507A CN 111440507 A CN111440507 A CN 111440507A CN 202010302972 A CN202010302972 A CN 202010302972A CN 111440507 A CN111440507 A CN 111440507A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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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
- C09D7/60—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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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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
- C09D7/80—Processes for incorporating ingredients
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
- H01L23/295—Organic, e.g. plastic containing a filler
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to an insulating coating which is prepared from the following components: 18-26 parts of epoxy resin; 8-12 parts of calcium carbonate powder; 8-10 parts of ceramic microspheres; 8-10 parts of silicon nitride; 8-10 parts of acrylic emulsion; 2-4 parts of alcohol ester; 1-3 parts of triethanolamine; 1-3 parts of emulsified silicone oil; 30-40 parts of water. The insulating coating provided by the invention has good insulating property, the process steps for preparing the insulating coating are simple and easy to realize, the prepared insulating coating has moderate viscosity, is not easy to delaminate, does not generate bubbles, is convenient to spray, fully combines all components, has good comprehensive performance, can form a good coating after construction, is not easy to generate cracks, has good film forming effect, has good insulating, waterproof and anti-aging properties, has good adhesiveness and is not easy to fall off.
Description
Technical Field
The invention relates to the technical field of insulating materials, in particular to an insulating coating and a preparation method thereof, and also relates to a metal substrate and a semiconductor device containing the insulating coating prepared by using the insulating coating.
Background
The insulating coating has excellent electrical insulating property; the coating can form a ceramic coating on the surface of a coated object, which has higher volume resistivity and can bear stronger electric field without breakdown. The coating has high mechanical strength and good chemical stability, and can resist aging, water and chemical corrosion; meanwhile, the coating has mechanical impact resistance and thermal impact resistance, and can continuously work at corresponding working temperature. However, there are some insulating coatings which are easy to crack, delaminate and bubble when used, and there is still room for improvement.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an insulating coating, and the defects are overcome. Also provides a preparation method of the insulating paint.
In order to solve the technical problems, the invention provides the following technical scheme: the insulating paint is prepared from the following components: 18-26 parts of epoxy resin; 8-12 parts of calcium carbonate powder; 8-10 parts of ceramic microspheres; 8-10 parts of silicon nitride; 8-10 parts of acrylic emulsion; 2-4 parts of alcohol ester; 1-3 parts of triethanolamine; 1-3 parts of emulsified silicone oil; 30-40 parts of water.
The invention also provides a preparation method of the insulating paint, which comprises the following technical steps:
weighing the following raw materials in parts by weight: 18-26 parts of epoxy resin, 8-12 parts of calcium carbonate powder, 8-10 parts of ceramic microspheres, 8-10 parts of silicon nitride, 8-10 parts of acrylic emulsion, 2-4 parts of alcohol ester dodeca, 1-3 parts of triethanolamine, 1-3 parts of emulsified silicone oil and 30-40 parts of water;
s1, adding the weighed acrylic emulsion, alcohol ester dodeca, triethanolamine, emulsified silicone oil and water into a stirrer, and stirring for 25-35min at the stirring speed of 800-;
s2, adding epoxy resin, calcium carbonate powder and silicon nitride into a ball mill for grinding until the particle diameter of the material is not more than 100nm, so as to prepare a mixed powder material;
s3, adding the mixed solution prepared in the step S1, the mixed powder material prepared in the step S2 and the ceramic microspheres into a reaction kettle, stirring for 30-40min, setting the stirring speed of the reaction kettle to be 700-1420 ℃, and filtering the mixed solution in the reaction kettle by using a filter screen with 50 meshes when the temperature is reduced to 40-50 ℃ after the reaction kettle stops working, wherein the obtained filtrate is the prepared insulating coating.
The invention also provides a metal substrate, wherein at least one part of the metal substrate is provided with an insulating coating prepared by using the insulating coating.
On the basis of the scheme, the method for arranging the insulating coating on the metal substrate comprises the following steps: cleaning the surface of the metal substrate to be provided with the insulating coating, and spraying the insulating coating prepared in the step S3 in the claim 2 on the surface of the metal substrate by using a high-pressure sprayer spray gun after the surface of the metal substrate is dried to form a coating film with the thickness of 300-400 mu m; and (3) putting the metal substrate with the coating film into a drying chamber for drying and curing, wherein the drying and curing temperature is 140-180 ℃, and the drying time is 30-40min, so that the insulating coating is prepared on the surface of the metal substrate.
The invention also provides a semiconductor device, wherein at least one part of the semiconductor device is provided with an insulating coating prepared by using the insulating coating.
Compared with the prior art, the invention has the beneficial effects that: the insulating coating provided by the invention has good insulating property, the process steps for preparing the insulating coating are simple and easy to realize, the prepared insulating coating has moderate viscosity, is not easy to delaminate, does not generate bubbles, is convenient to spray, fully combines all components, has good comprehensive performance, can form a good coating after construction, is not easy to generate cracks, has good film forming effect, has good insulating, waterproof and anti-aging properties, has good adhesiveness and is not easy to fall off.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present embodiment provides a semiconductor device and a metal substrate, on a part of which an insulating coating layer made of the insulating paint of the present invention is provided.
The method for arranging the insulating coating on the metal substrate comprises the following steps:
weighing the following raw materials in parts by weight: 20 parts of epoxy resin, 10 parts of calcium carbonate powder, 9 parts of ceramic microspheres, 9 parts of silicon nitride, 10 parts of acrylic emulsion, twelve 4 parts of alcohol ester, 3 parts of triethanolamine, 3 parts of emulsified silicone oil and 40 parts of water;
s1, adding the weighed acrylic emulsion, alcohol ester dodeca, triethanolamine, emulsified silicone oil and water into a stirrer, and stirring for 30min at the stirring speed of 1000r/min to obtain a mixed solution;
s2, adding epoxy resin, calcium carbonate powder and silicon nitride into a ball mill for grinding until the particle diameter of the material is less than 100nm, so as to prepare a mixed powder material;
s3, adding the mixed solution prepared in the step S1, the mixed powder material prepared in the step S2 and the ceramic microspheres into a reaction kettle, stirring for 40min, setting the stirring speed of the reaction kettle to 900r/min and the temperature to 140 ℃, and filtering the mixed solution in the reaction kettle by using a 50-mesh filter screen when the temperature is reduced to 40-50 ℃ after the reaction kettle stops working, wherein the obtained filtrate is the prepared insulating paint;
s4: cleaning the surface of the metal substrate to be provided with the insulating coating, and spraying the insulating coating prepared in the step S3 on the surface of the metal substrate by using a high-pressure sprayer spray gun after the surface of the metal substrate is dried to form a coating film with the thickness of 300 mu m;
s5: and (3) putting the metal substrate with the coating film into a drying chamber for drying and curing, wherein the drying and curing temperature is 150 ℃, and the drying time is 40min, so that the insulating coating is prepared on the surface of the metal substrate.
The insulating property of the metal substrate provided with the insulating coating by utilizing the insulating coating and the preparation method is much better, by adopting the technical scheme, the process for preparing the insulating coating is simple in steps and easy to realize, the prepared insulating coating is moderate in viscosity, not easy to layer, free of bubble generation, convenient to spray, fully combined in components and good in comprehensive performance, so that the insulating coating can form a good coating film after construction, cracks are not easy to generate, the film forming effect is good, the prepared insulating coating has good insulating, waterproof and anti-aging properties, the adhesiveness is good, the metal substrate is not easy to fall off, and the insulating comprehensive performance of the metal substrate can be effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The insulating paint is characterized by being prepared from the following components:
18-26 parts of epoxy resin;
8-12 parts of calcium carbonate powder;
8-10 parts of ceramic microspheres;
8-10 parts of silicon nitride;
8-10 parts of acrylic emulsion;
2-4 parts of alcohol ester;
1-3 parts of triethanolamine;
1-3 parts of emulsified silicone oil;
30-40 parts of water.
2. The process for preparing an insulating coating according to claim 1, characterized in that it comprises the following technical steps:
weighing the following raw materials in parts by weight: 18-26 parts of epoxy resin, 8-12 parts of calcium carbonate powder, 8-10 parts of ceramic microspheres, 8-10 parts of silicon nitride, 8-10 parts of acrylic emulsion, 2-4 parts of alcohol ester dodeca, 1-3 parts of triethanolamine, 1-3 parts of emulsified silicone oil and 30-40 parts of water;
s1, adding the weighed acrylic emulsion, alcohol ester dodeca, triethanolamine, emulsified silicone oil and water into a stirrer, and stirring for 25-35min at the stirring speed of 800-;
s2, adding epoxy resin, calcium carbonate powder and silicon nitride into a ball mill for grinding until the particle diameter of the material is not more than 100nm, so as to prepare a mixed powder material;
s3, adding the mixed solution prepared in the step S1, the mixed powder material prepared in the step S2 and the ceramic microspheres into a reaction kettle, stirring for 30-40min, setting the stirring speed of the reaction kettle to be 700-1420 ℃, and filtering the mixed solution in the reaction kettle by using a filter screen with 50 meshes when the temperature is reduced to 40-50 ℃ after the reaction kettle stops working, wherein the obtained filtrate is the prepared insulating coating.
3. A metal substrate characterized in that at least a part of the metal substrate is provided with an insulating coating layer produced by using the insulating paint according to claim 1.
4. A metal substrate characterized in that at least a part of the metal substrate is provided with an insulating coating layer produced by using the insulating paint according to claim 2.
5. The metal substrate according to claim 4, wherein the insulating coating is provided on the metal substrate by: cleaning the surface of the metal substrate to be provided with the insulating coating, and spraying the insulating coating prepared in the step S3 in the claim 2 on the surface of the metal substrate by using a high-pressure sprayer spray gun after the surface of the metal substrate is dried to form a coating film with the thickness of 300-400 mu m;
and (3) putting the metal substrate with the coating film into a drying chamber for drying and curing, wherein the drying and curing temperature is 140-180 ℃, and the drying time is 30-40min, so that the insulating coating is prepared on the surface of the metal substrate.
6. A semiconductor device characterized in that at least a part of the semiconductor device is provided with an insulating coating layer produced by using the insulating paint according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302972.1A CN111440507A (en) | 2020-04-17 | 2020-04-17 | Insulating coating and preparation method thereof, metal substrate and semiconductor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302972.1A CN111440507A (en) | 2020-04-17 | 2020-04-17 | Insulating coating and preparation method thereof, metal substrate and semiconductor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111440507A true CN111440507A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010302972.1A Pending CN111440507A (en) | 2020-04-17 | 2020-04-17 | Insulating coating and preparation method thereof, metal substrate and semiconductor device |
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| CN (1) | CN111440507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113416442A (en) * | 2020-12-16 | 2021-09-21 | 安徽佳景美新材料有限公司 | Epoxy resin floor material capable of releasing negative ions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483972A (en) * | 2013-09-23 | 2014-01-01 | 句容市睿远科技有限公司 | Epoxide resin paint used in carriage of high-speed train |
| CN107634455A (en) * | 2017-09-27 | 2018-01-26 | 国网河南省电力公司南召县供电公司 | A kind of novel electric power cabinet |
| CN108624153A (en) * | 2018-06-07 | 2018-10-09 | 和县华顺铸造有限公司 | A kind of coatings and preparation method thereof for electrical equipment |
| 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 |
-
2020
- 2020-04-17 CN CN202010302972.1A patent/CN111440507A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483972A (en) * | 2013-09-23 | 2014-01-01 | 句容市睿远科技有限公司 | Epoxide resin paint used in carriage of high-speed train |
| CN107634455A (en) * | 2017-09-27 | 2018-01-26 | 国网河南省电力公司南召县供电公司 | A kind of novel electric power cabinet |
| CN108624153A (en) * | 2018-06-07 | 2018-10-09 | 和县华顺铸造有限公司 | A kind of coatings and preparation method thereof for electrical equipment |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113416442A (en) * | 2020-12-16 | 2021-09-21 | 安徽佳景美新材料有限公司 | Epoxy resin floor material capable of releasing negative ions |
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Application publication date: 20200724 |