CN105385346B - The preparation method of transformer high-temperature resistant coating material compositions and high-temperature resistant coating - Google Patents
The preparation method of transformer high-temperature resistant coating material compositions and high-temperature resistant coating Download PDFInfo
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- CN105385346B CN105385346B CN201510972051.5A CN201510972051A CN105385346B CN 105385346 B CN105385346 B CN 105385346B CN 201510972051 A CN201510972051 A CN 201510972051A CN 105385346 B CN105385346 B CN 105385346B
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- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 title claims abstract description 16
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 37
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 28
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 28
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 28
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 28
- 239000008116 calcium stearate Substances 0.000 claims abstract description 28
- 239000010439 graphite Substances 0.000 claims abstract description 28
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 28
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 28
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 28
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 25
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 26
- 239000008096 xylene Substances 0.000 claims description 25
- 239000004945 silicone rubber Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000454 talc Substances 0.000 claims description 9
- 235000012222 talc Nutrition 0.000 claims description 9
- 229910052623 talc Inorganic materials 0.000 claims description 9
- 239000002518 antifoaming agent Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 238000004073 vulcanization Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
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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
- C09D7/63—Additives non-macromolecular organic
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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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
A kind of preparation method the invention discloses transformer with high-temperature resistant coating material compositions and high-temperature resistant coating, wherein, the composition includes organic silicon rubber, hydroxyethyl cellulose, talcum powder, aluminium oxide, magnesia, calcium stearate, graphite, dimethylbenzene and n-butanol；Wherein, relative to the organic silicon rubber of 100 parts by weight, the content of the hydroxyethyl cellulose is 10 50 parts by weight, the content of the talcum powder is 10 40 parts by weight, and the content of the aluminium oxide is 5 20 parts by weight, and the content of the magnesia is 5 20 parts by weight, the content of the calcium stearate is 10 30 parts by weight, the content of the graphite is 10 20 parts by weight, and the content of the dimethylbenzene is 20 50 parts by weight, and the content of the n-butanol is 10 30 parts by weight.By above-mentioned design, efficiency high temperature resistance can be had by realizing so that the problems such as dry and cracked will not occur in high temperature environments, greatly improve the effect of production efficiency.
Description
Technical Field
The invention relates to the field of production and preparation of coatings for transformers, in particular to a high-temperature-resistant coating material composition for transformers and a preparation method of a high-temperature-resistant coating.
Background
The transformer is in the actual production use, temperature in the service environment is higher often, therefore, when its actual use, often its surface coating's coating leads to the dry crack deformation because of the high temperature easily, thereby make the coating take place to drop, and make the transformer surface not have any protective layer, in later stage use, often can make its life greatly reduced, but in process of production, if frequently let maintainer go to carry out operations such as mopping, not only waste time and energy, and improved the manufacturing cost in the production greatly, and often can't carry out normal production waiting to the time that the coating is dry.
Therefore, the invention provides a high-temperature resistant coating material composition for a transformer and a preparation method of the high-temperature resistant coating, which can effectively resist high temperature, prevent the problems of drying crack and the like in a high-temperature environment and greatly improve the production efficiency.
Disclosure of Invention
Aiming at the prior art, the invention aims to overcome the problems that in the prior art, the temperature of the use environment of the transformer is high, the coating falls off, no protective layer is arranged on the surface of the transformer, the service life of the transformer is often greatly reduced in the later use process, but in the production process, if maintenance personnel frequently carry out operations such as paint brushing and the like, time and labor are wasted, the production cost in the production is greatly increased, and normal production cannot be carried out frequently within the time of waiting for the coating to be dried, so that the high-temperature-resistant coating material composition for the transformer and the preparation method of the high-temperature-resistant coating can effectively resist high temperature, the problems of dry cracking and the like cannot occur in the high-temperature environment, and the production efficiency is greatly improved.
In order to achieve the above object, the present invention provides a high temperature resistant coating material composition for a transformer, wherein the composition comprises silicone rubber, hydroxyethyl cellulose, talc, alumina, magnesium oxide, calcium stearate, graphite, xylene and n-butanol; wherein,
relative to 100 parts by weight of the organic silicon rubber, the content of the hydroxyethyl cellulose is 10-50 parts by weight, the content of the talcum powder is 10-40 parts by weight, the content of the aluminum oxide is 5-20 parts by weight, the content of the magnesium oxide is 5-20 parts by weight, the content of the calcium stearate is 10-30 parts by weight, the content of the graphite is 10-20 parts by weight, the content of the xylene is 20-50 parts by weight, and the content of the n-butyl alcohol is 10-30 parts by weight.
The invention also provides a preparation method of the high-temperature-resistant coating for the transformer, wherein the preparation method comprises the following steps: mixing organic silicon rubber, hydroxyethyl cellulose, talcum powder, alumina, magnesium oxide, calcium stearate, graphite, xylene and n-butyl alcohol to prepare the high-temperature-resistant coating for the transformer; wherein,
relative to 100 parts by weight of the organic silicon rubber, the dosage of the hydroxyethyl cellulose is 10-50 parts by weight, the dosage of the talcum powder is 10-40 parts by weight, the dosage of the alumina is 5-20 parts by weight, the dosage of the magnesium oxide is 5-20 parts by weight, the dosage of the calcium stearate is 10-30 parts by weight, the dosage of the graphite is 10-20 parts by weight, the dosage of the xylene is 20-50 parts by weight, and the dosage of the n-butanol is 10-30 parts by weight.
According to the technical scheme, the high-temperature-resistant coating for the transformer is prepared by mixing the organic silicon rubber, the hydroxyethyl cellulose, the talcum powder, the aluminum oxide, the magnesium oxide, the calcium stearate, the graphite, the xylene and the n-butyl alcohol according to a certain proportion, so that the high-temperature-resistant coating prepared from the materials has better high-temperature resistance in actual use, the problem that the high-temperature-resistant coating is easy to crack and fall under a high-temperature environment is greatly reduced, the service performance is improved, and the maintenance cost is reduced.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a high-temperature-resistant coating material composition for a transformer, wherein the composition comprises organic silicon rubber, hydroxyethyl cellulose, talcum powder, aluminum oxide, magnesium oxide, calcium stearate, graphite, xylene and n-butyl alcohol; wherein,
relative to 100 parts by weight of the organic silicon rubber, the content of the hydroxyethyl cellulose is 10-50 parts by weight, the content of the talcum powder is 10-40 parts by weight, the content of the aluminum oxide is 5-20 parts by weight, the content of the magnesium oxide is 5-20 parts by weight, the content of the calcium stearate is 10-30 parts by weight, the content of the graphite is 10-20 parts by weight, the content of the xylene is 20-50 parts by weight, and the content of the n-butyl alcohol is 10-30 parts by weight.
According to the design, the high-temperature-resistant coating for the transformer is prepared by mixing the organic silicon rubber, the hydroxyethyl cellulose, the talcum powder, the alumina, the magnesium oxide, the calcium stearate, the graphite, the xylene and the n-butyl alcohol according to a certain proportion, so that the high-temperature-resistant coating prepared from the materials has better high-temperature resistance in actual use, the problem that the high-temperature-resistant coating is easy to crack and fall off in a high-temperature environment is greatly reduced, the service performance is improved, and the maintenance cost is reduced.
In a preferred embodiment of the present invention, in order to improve the high temperature resistance of the prepared high temperature resistant coating material, the hydroxyethyl cellulose is 20 to 40 parts by weight, the talc is 20 to 30 parts by weight, the alumina is 10 to 15 parts by weight, the magnesium oxide is 10 to 15 parts by weight, the calcium stearate is 15 to 25 parts by weight, the graphite is 13 to 17 parts by weight, the xylene is 30 to 40 parts by weight, and the n-butanol is 15 to 25 parts by weight, based on 100 parts by weight of the silicone rubber.
Of course, in a more preferred embodiment of the present invention, in order to make the prepared high temperature resistant coating material easier to mix uniformly in preparation, the composition may further include a leveling agent and an antifoaming agent, wherein the leveling agent is included in an amount of 1 to 5 parts by weight and the antifoaming agent is included in an amount of 1 to 5 parts by weight, relative to 100 parts by weight of the silicone rubber.
The silicone rubber may be of the type conventionally used in the art, for example, in a preferred embodiment of the present invention, the silicone rubber may be selected to be a high temperature vulcanizing silicone rubber.
The invention also provides a preparation method of the high-temperature-resistant coating for the transformer, wherein the preparation method comprises the following steps: mixing organic silicon rubber, hydroxyethyl cellulose, talcum powder, alumina, magnesium oxide, calcium stearate, graphite, xylene and n-butyl alcohol to prepare the high-temperature-resistant coating for the transformer; wherein,
relative to 100 parts by weight of the organic silicon rubber, the dosage of the hydroxyethyl cellulose is 10-50 parts by weight, the dosage of the talcum powder is 10-40 parts by weight, the dosage of the alumina is 5-20 parts by weight, the dosage of the magnesium oxide is 5-20 parts by weight, the dosage of the calcium stearate is 10-30 parts by weight, the dosage of the graphite is 10-20 parts by weight, the dosage of the xylene is 20-50 parts by weight, and the dosage of the n-butanol is 10-30 parts by weight.
In a preferred embodiment of the present invention, the hydroxyethyl cellulose is used in an amount of 20 to 40 parts by weight, the talc is used in an amount of 20 to 30 parts by weight, the alumina is used in an amount of 10 to 15 parts by weight, the magnesium oxide is used in an amount of 10 to 15 parts by weight, the calcium stearate is used in an amount of 15 to 25 parts by weight, the graphite is used in an amount of 13 to 17 parts by weight, the xylene is used in an amount of 30 to 40 parts by weight, and the n-butanol is used in an amount of 15 to 25 parts by weight, with respect to 100 parts by weight of the silicone rubber.
Of course, in order to make the prepared coating material more stable, in a preferred embodiment of the present invention, the preparation method may further include adding a leveling agent and an antifoaming agent for mixing, wherein the leveling agent is used in an amount of 1 to 5 parts by weight and the antifoaming agent is used in an amount of 1 to 5 parts by weight, relative to 100 parts by weight of the silicone rubber.
The mixing process may be performed according to a mixing method conventionally employed in the art, for example, in a preferred embodiment of the present invention, the mixing process may be performed at a temperature of 80-120 ℃ and a stirring rate of 100-150r/min for 10-20 min.
The silicone rubber is as described above, and will not be described herein.
The present invention will be described in detail below by way of examples. In the following examples, the silicone rubber is a commercially available high temperature vulcanized silicone rubber supplied by Shenzhen Shenpeng New Yong adhesive factory, and the hydroxyethyl cellulose, the talc powder, the alumina, the magnesium oxide, the calcium stearate, the graphite, the xylene and the n-butanol are conventional commercially available products.
Example 1
100g of organic silicon rubber, 20g of hydroxyethyl cellulose, 20g of talcum powder, 10g of alumina, 10g of magnesium oxide, 15g of calcium stearate, 13g of graphite, 30g of xylene and 15g of n-butyl alcohol are placed at the temperature of 80 ℃ and stirred for 10min at the stirring speed of 100r/min to prepare the high-temperature resistant coating A1 for the transformer.
Example 2
100g of organic silicon rubber, 40g of hydroxyethyl cellulose, 30g of talcum powder, 15g of alumina, 15g of magnesium oxide, 25g of calcium stearate, 17g of graphite, 40g of xylene and 25g of n-butyl alcohol are placed at the temperature of 120 ℃ and stirred for 20min at the stirring speed of 150r/min to prepare the high-temperature resistant coating A2 for the transformer.
Example 3
100g of organic silicon rubber, 30g of hydroxyethyl cellulose, 25g of talcum powder, 12g of alumina, 12g of magnesium oxide, 20g of calcium stearate, 15g of graphite, 35g of xylene and 20g of n-butyl alcohol are placed at the temperature of 100 ℃ and stirred for 15min at the stirring speed of 120r/min to prepare the high-temperature resistant coating A3 for the transformer.
Example 4
The preparation was carried out in accordance with the preparation method of example 1 except that the amount of hydroxyethylcellulose was 10g, the amount of talc was 10g, the amount of alumina was 5g, the amount of magnesium oxide was 5g, the amount of calcium stearate was 10g, the amount of graphite was 10g, the amount of xylene was 20g, and the amount of n-butanol was 10g, to obtain a high-temperature resistant coating material A4 for a transformer.
Example 5
The preparation was carried out in accordance with the preparation method of example 2 except that 50g of hydroxyethylcellulose was used, 40g of talc was used, 20g of alumina was used, 20g of magnesium oxide was used, 30g of calcium stearate was used, 20g of graphite was used, 50g of xylene was used, and 30g of n-butanol was used, to obtain a high-temperature resistant coating material A5 for a transformer.
Comparative example 1
The preparation was carried out in accordance with the preparation method of example 3 except that 5g of hydroxyethylcellulose, 5g of talc, 2g of alumina, 2g of magnesium oxide, 5g of calcium stearate, 5g of graphite, 10g of xylene and 5g of n-butanol were used to prepare a coating material for a transformer D1.
Comparative example 2
The preparation was carried out in accordance with the preparation method of example 3 except that 80g of hydroxyethylcellulose, 80g of talc, 40g of alumina, 40g of magnesium oxide, 50g of calcium stearate, 40g of graphite, 80g of xylene and 50g of n-butanol were used to prepare a coating material for a transformer D2.
Comparative example 3
Commercially available silicone coating D3, manufactured by Yangyang beauty works, Inc., Guangzhou.
Test example
The results of coating the surfaces of the iron pieces with the coatings A1-A5 and D1-D3 were shown in Table 1, after the iron pieces were coated with the coatings A1-A5 and D1-D3, respectively, and then the iron pieces were left at 80 ℃ and 150 ℃ for 12 hours.
TABLE 1
| Numbering | 80℃ | 150℃ |
| A1 | Without change | Without change |
| A2 | Without change | Without change |
| A3 | Without change | Without change |
| A4 | Without change | Without obvious change |
| A5 | Without change | Without obvious change |
| D1 | Slight dry cracking | Obvious dry cracking |
| D2 | Obvious dry cracking | Obvious dry cracking |
| D3 | Without change | Crack by desiccation |
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. The high-temperature-resistant coating material composition for the transformer is characterized by comprising organic silicon rubber, hydroxyethyl cellulose, talcum powder, aluminum oxide, magnesium oxide, calcium stearate, graphite, dimethylbenzene, n-butyl alcohol, an optionally-contained leveling agent and an optionally-contained defoaming agent; wherein,
relative to 100 parts by weight of the organic silicon rubber, the content of the hydroxyethyl cellulose is 10-50 parts by weight, the content of the talcum powder is 10-40 parts by weight, the content of the aluminum oxide is 5-20 parts by weight, the content of the magnesium oxide is 5-20 parts by weight, the content of the calcium stearate is 10-30 parts by weight, the content of the graphite is 10-20 parts by weight, the content of the xylene is 20-50 parts by weight, and the content of the n-butyl alcohol is 10-30 parts by weight.
2. The composition according to claim 1, wherein the hydroxyethyl cellulose is contained in an amount of 20 to 40 parts by weight, the talc is contained in an amount of 20 to 30 parts by weight, the alumina is contained in an amount of 10 to 15 parts by weight, the magnesium oxide is contained in an amount of 10 to 15 parts by weight, the calcium stearate is contained in an amount of 15 to 25 parts by weight, the graphite is contained in an amount of 13 to 17 parts by weight, the xylene is contained in an amount of 30 to 40 parts by weight, and the n-butanol is contained in an amount of 15 to 25 parts by weight, relative to 100 parts by weight of the silicone rubber.
3. The composition as set forth in claim 1 or 2, wherein the leveling agent is contained in an amount of 1 to 5 parts by weight and the defoaming agent is contained in an amount of 1 to 5 parts by weight, relative to 100 parts by weight of the silicone rubber.
4. The composition of claim 1 or 2, wherein the silicone rubber is a high temperature vulcanizable silicone rubber.
5. The preparation method of the high-temperature-resistant coating for the transformer is characterized by comprising the following steps of: mixing organic silicon rubber, hydroxyethyl cellulose, talcum powder, aluminum oxide, magnesium oxide, calcium stearate, graphite, xylene, n-butyl alcohol, an optionally contained leveling agent and an optionally contained defoaming agent to prepare the high-temperature-resistant coating for the transformer; wherein,
relative to 100 parts by weight of the organic silicon rubber, the dosage of the hydroxyethyl cellulose is 10-50 parts by weight, the dosage of the talcum powder is 10-40 parts by weight, the dosage of the alumina is 5-20 parts by weight, the dosage of the magnesium oxide is 5-20 parts by weight, the dosage of the calcium stearate is 10-30 parts by weight, the dosage of the graphite is 10-20 parts by weight, the dosage of the xylene is 20-50 parts by weight, and the dosage of the n-butanol is 10-30 parts by weight.
6. The preparation method according to claim 5, wherein the hydroxyethyl cellulose is used in an amount of 20 to 40 parts by weight, the talc is used in an amount of 20 to 30 parts by weight, the alumina is used in an amount of 10 to 15 parts by weight, the magnesium oxide is used in an amount of 10 to 15 parts by weight, the calcium stearate is used in an amount of 15 to 25 parts by weight, the graphite is used in an amount of 13 to 17 parts by weight, the xylene is used in an amount of 30 to 40 parts by weight, and the n-butanol is used in an amount of 15 to 25 parts by weight, relative to 100 parts by weight of the silicone rubber.
7. The production method according to claim 5 or 6, wherein the leveling agent is used in an amount of 1 to 5 parts by weight and the defoaming agent is used in an amount of 1 to 5 parts by weight, relative to 100 parts by weight of the silicone rubber.
8. The preparation method according to claim 5 or 6, wherein the mixing process is carried out at a temperature of 80-120 ℃ and a stirring speed of 100-150r/min for 10-20 min.
9. The production method according to claim 5 or 6, wherein the silicone rubber is a high-temperature vulcanization type silicone rubber.
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| CN101429418A (en) * | 2007-11-06 | 2009-05-13 | 吕柏涛 | Method for producing organic silica gel adhesive agent |
| CN103436161B (en) * | 2013-05-31 | 2015-12-23 | 镇江天信电器有限公司 | A kind of electric water heater electric heating tube insulation compound |
| CN104610876A (en) * | 2015-02-13 | 2015-05-13 | 宁波华高科防水技术有限公司 | Silicone rubber waterproof paint |
| CN104910567A (en) * | 2015-06-25 | 2015-09-16 | 重庆大学 | High-temperature-resistant anti-aging electric power insulation material and production method thereof |
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Address after: 241000 Weisan Road, Economic Development Zone, Fanchang District, Wuhu City, Anhui Province Patentee after: Xigao Electric Group Co.,Ltd. Country or region after: China Address before: 241000 Weisan Road, economic development zone, Fanchang County, Wuhu City, Anhui Province Patentee before: ANHUI XIGAO ELECTRIC EQUIPMENT Co.,Ltd. Country or region before: China |