CN116179076A - Preparation method of heat-resistant oil-resistant water-type electromagnetic wire insulating paint - Google Patents
Preparation method of heat-resistant oil-resistant water-type electromagnetic wire insulating paint Download PDFInfo
- Publication number
- CN116179076A CN116179076A CN202310044372.3A CN202310044372A CN116179076A CN 116179076 A CN116179076 A CN 116179076A CN 202310044372 A CN202310044372 A CN 202310044372A CN 116179076 A CN116179076 A CN 116179076A
- Authority
- CN
- China
- Prior art keywords
- parts
- resin
- finished product
- resistant
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003973 paint Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 65
- 239000011347 resin Substances 0.000 claims abstract description 65
- 229920002492 poly(sulfone) Polymers 0.000 claims abstract description 22
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000005011 phenolic resin Substances 0.000 claims abstract description 14
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 14
- 229920002312 polyamide-imide Polymers 0.000 claims abstract description 13
- 239000004962 Polyamide-imide Substances 0.000 claims abstract description 12
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920003192 poly(bis maleimide) Polymers 0.000 claims abstract description 11
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims abstract description 10
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- -1 polysiloxane Polymers 0.000 claims abstract description 10
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 10
- 125000003944 tolyl group Chemical group 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 32
- 239000002904 solvent Substances 0.000 claims description 31
- 239000000047 product Substances 0.000 claims description 30
- 239000011265 semifinished product Substances 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 16
- 238000010992 reflux Methods 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000013557 residual solvent Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- C09D181/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Coating compositions based on polysulfones; Coating compositions based on derivatives of such polymers
- C09D181/06—Polysulfones; Polyethersulfones
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive 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
- 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
- C09D7/20—Diluents or solvents
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to the technical field of insulating paint, in particular to a preparation method of a heat-resistant oil-resistant water-type electromagnetic wire insulating paint, which is prepared from the following raw materials in parts by weight: 264-308 parts of N-methylpyrrolidone, 55-62 parts of dimethylacetamide, 203-246 parts of dimethylbenzene, 200 parts of polysulfone resin, 114-228 parts of polyamide-imide resin, 20-50 parts of bismaleimide resin, 8-20 parts of phenolic resin, 0.2-0.5 part of flatting agent and 20-40 parts of methylphenyl polysiloxane resin. The electromagnetic wire insulating paint provided by the invention has good paint film insulating property and mechanical property, and has ideal heat resistance and mechanical oil and water mixing, superposition and erosion resistance effects.
Description
Technical Field
The invention relates to the technical field of insulating paint, in particular to a preparation method of a heat-resistant oil-resistant water-type electromagnetic wire insulating paint.
Background
In order to reduce the temperature rise of a driving motor and improve the motor power, the new energy automobile increasingly adopts an oil-cooled winding motor to replace the traditional air cooling or water cooling. In the design, the motor needs to be completely soaked in gearbox oil (ATF), and higher requirements are put on the traditional electromagnetic wire insulating paint, so that the conventional electrical and mechanical properties are met, and the tolerance of oil (containing water) under the working temperature in a closed environment is met.
The traditional commercial electromagnetic wire insulating paint, such as PU, PE, PEI, PAI, PI, has no ideal oil-water resistance due to the synthesis process and the molecular structure characteristics of the product, and particularly has no characteristic of resisting the erosion of the oil of the water-containing gearbox under the impact of high and low temperature (150 ℃/-50 ℃).
Therefore, we propose a preparation method of a heat-resistant and oil-resistant electromagnetic wire insulating coating to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a preparation method of a heat-resistant oil-resistant water-type electromagnetic wire insulating coating.
The preparation method of the heat-resistant oil-resistant water-type electromagnetic wire insulating paint comprises the following raw materials in parts by weight:
264-308 parts of N-methylpyrrolidone, 55-62 parts of dimethylacetamide, 203-246 parts of dimethylbenzene, 200 parts of polysulfone resin, 114-228 parts of polyamide-imide resin, 20-50 parts of bismaleimide resin, 8-20 parts of phenolic resin, 0.2-0.5 part of flatting agent and 20-40 parts of methylphenyl polysiloxane resin;
and the specific preparation process is as follows:
step a: taking 264-308 parts of N-methylpyrrolidone, 55-62 parts of dimethylacetamide and 203-246 parts of dimethylbenzene according to the mass ratio, adding the mixture into a reaction kettle with a condensing reflux pipe, stirring and mixing the mixture uniformly at normal temperature, putting down 40-100 parts of the mixture for standby, marking the mixture as a standby solvent B, and marking the rest solvent as a solvent A;
step b: stirring and heating the solvent A in the reaction kettle to 50-60 ℃ according to the required weight portion, adding 200 parts of polysulfone resin, heating to 90-100 ℃, keeping the temperature and stirring until the polysulfone resin is completely dissolved, and cooling to 45-55 ℃ to obtain a semi-finished product C;
step c: adding 40-100 parts of the standby solvent B of the mixed solution prepared in the step a into a reaction kettle with a stirrer and a reflux device, adding 20-50 parts of bismaleimide resin according to parts by weight, starting stirring, heating to 70-80 ℃, preserving heat for 1-2 hours until the resin is completely dissolved, preparing a semi-finished product D, and cooling to 40-50 ℃ for standby;
step d: c, putting the semi-finished product C obtained in the step b into the semi-finished product D obtained in the step C, respectively putting 8-20 parts of phenolic resin, 114-228 parts of polyamide imide resin, 20-40 parts of methyl phenyl polysiloxane resin and 0.2-0.5 part of flatting agent according to parts by weight, and carrying out heat preservation and stirring for 1h at the temperature of 45-55 ℃ to obtain transparent uniform finished product liquid;
step e: and testing the viscosity/solid content of the finished product, and filtering and packaging the finished product by a 250-mesh filter screen to obtain the finished product.
As a preferable technical scheme of the invention, the polysulfone resin is a medium molecular weight resin with a molecular weight of 1.5-2.5w.
As a preferable technical scheme of the invention, the polyamide imide resin is electromagnetic wire insulating paint.
As a preferable technical scheme of the invention, the phenolic resin is thermosetting phenolic resin.
As a preferable technical scheme of the invention, the leveling agent is BYK-300 silane leveling agent.
Compared with the prior art, the invention has the beneficial effects that:
the polysulfone resin with good oil resistance and hydrolysis resistance is adopted as a main film forming component, a basic platform with good product performance is constructed, and the polyimide imide resin with high heat resistance is matched, so that the film forming property of the polysulfone resin is further improved, and the heat resistance is ensured to be higher than 200 ℃; in order to further improve the corrosion resistance of polysulfone resin, bismaleimide resin with excellent corrosion resistance is added according to a proportion, thermosetting phenolic resin is adopted as a curing agent, the binder is finally endowed with good heat resistance and oil water resistance for film formation, the addition of the leveling agent improves the smoothness of the coating surface, a trapezoid boiling range evaporation effect is formed by adopting a compound solvent system, and satisfactory film formation effect is ensured.
Detailed Description
The invention is further illustrated below in connection with specific embodiments.
Example 1:
step a: 308 parts of N-methylpyrrolidone, 62 parts of dimethylacetamide and 246 parts of dimethylbenzene are added into a reaction kettle with a condensing reflux pipe according to the mass ratio, stirred and mixed uniformly at normal temperature, 100 parts of the mixture are put down for standby, the standby solvent B is marked, and the residual solvent A is marked;
step b: stirring and heating the solvent A in the reaction kettle to 60 ℃ according to the requirements, adding 200 parts of polysulfone resin according to the parts by weight, heating to 100 ℃, keeping the temperature and stirring until the polysulfone resin is completely dissolved, and cooling to 45 ℃ to obtain a semi-finished product C;
step c: and D, adding 100 parts of the standby solvent B of the mixed solution prepared in the step a into a reaction kettle with a stirrer and a condensing reflux device, adding 50 parts of bismaleimide resin according to parts by weight, starting stirring, heating to 80 ℃, preserving heat for 2 hours until the resin is completely dissolved, preparing a semi-finished product D, and cooling to 40 ℃ for standby.
Step d: and C, putting the semi-finished product C obtained in the step b into the semi-finished product D obtained in the step C, respectively putting 20 parts of phenolic resin, 114 parts of polyamide imide resin and 0.2 part of methyl phenyl polysiloxane resin 20 parts of flatting agent (BYK-300) according to parts by weight, and carrying out heat preservation and stirring for 1h at the temperature of 55 ℃ to obtain transparent and uniform finished product liquid.
Step e: and testing the viscosity/solid content of the finished product, and filtering and packaging the finished product by a 250-mesh filter screen to obtain the finished product.
Example 2:
step a: taking 300 parts of N-methylpyrrolidone, 60 parts of dimethylacetamide and 241 parts of dimethylbenzene, adding the mixture into a reaction kettle with a condensing reflux pipe, stirring and mixing the mixture uniformly at normal temperature, putting down 80 parts of the mixture for standby, marking the mixture as standby solvent B, and marking the rest solvent as solvent A;
step b: stirring and heating the solvent A in the reaction kettle to 60 ℃ according to the requirements, adding 200 parts of polysulfone resin according to the parts by weight, heating to 100 ℃, keeping the temperature and stirring until the polysulfone resin is completely dissolved, and cooling to 45 ℃ to obtain a semi-finished product C;
step c: and D, adding 80 parts of the standby solvent B of the mixed solution prepared in the step a into a reaction kettle with a stirrer and a reflux device, adding 40 parts of bismaleimide resin according to parts by weight, starting stirring, heating to 80 ℃, preserving heat for 2 hours until the resin is completely dissolved, preparing a semi-finished product D, and cooling to 40 ℃ for standby.
Step d: and C, putting the semi-finished product C obtained in the step b into the semi-finished product D obtained in the step C, respectively putting 16 parts by weight of phenolic resin, 143 parts by weight of polyamide imide resin, 26 parts by weight of methyl phenyl polysiloxane resin and 0.3 part by weight of flatting agent (BYK-300), and carrying out heat preservation and stirring for 1h at the temperature of 55 ℃ to obtain transparent and uniform finished product liquid.
Step e: and testing the viscosity/solid content of the finished product, and filtering and packaging the finished product by a 250-mesh filter screen to obtain the finished product.
Example 3:
step a: 264 parts of N-methylpyrrolidone, 60 parts of dimethylacetamide and 203 parts of dimethylbenzene are added into a reaction kettle with a condensing reflux pipe according to the mass ratio, stirred and mixed uniformly at normal temperature, 60 parts of the mixture are put down for standby, the standby solvent B is marked, and the residual solvent A is marked;
step b: stirring and heating the solvent A in the reaction kettle to 60 ℃ according to the requirements, adding 200 parts of polysulfone resin according to the parts by weight, heating to 100 ℃, keeping the temperature and stirring until the polysulfone resin is completely dissolved, and cooling to 45 ℃ to obtain a semi-finished product C;
step c: and D, adding 60 parts of the standby solvent B of the mixed solution prepared in the step a into a reaction kettle with a stirrer and a reflux device, adding 30 parts of bismaleimide resin according to parts by weight, starting stirring, heating to 80 ℃, preserving heat for 2 hours until the resin is completely dissolved, preparing a semi-finished product D, and cooling to 40 ℃ for standby.
Step d: c, putting the semi-finished product C prepared in the step b into the semi-finished product D prepared in the step C, respectively putting 12 parts of phenolic resin, 171 parts of polyamide imide resin, 32 parts of methyl phenyl polysiloxane resin and 0.4 part of flatting agent (BYK-300) in parts by weight, and carrying out heat preservation and stirring for 1h at the temperature of 55 ℃ to support transparent and uniform finished product liquid.
Step e: and testing the viscosity/solid content of the finished product, and filtering and packaging the finished product by a 250-mesh filter screen to obtain the finished product.
Example 4:
step a: 272 parts of N-methylpyrrolidone, 55 parts of dimethylacetamide and 216 parts of dimethylbenzene are added into a reaction kettle with a condensing reflux pipe according to the mass ratio, stirred and mixed uniformly at normal temperature, 40 parts of the mixture are put down for standby, the standby solvent B is marked, and the rest solvent A is marked;
step b: stirring and heating the solvent A in the reaction kettle to 60 ℃ according to the requirements, adding 200 parts of polysulfone resin according to the parts by weight, heating to 100 ℃, keeping the temperature and stirring until the polysulfone resin is completely dissolved, and cooling to 45 ℃ to obtain a semi-finished product C;
step c: and D, adding 40 parts of the standby solvent B of the mixed solution prepared in the step a into a reaction kettle with a stirrer and a reflux device, adding 20 parts of bismaleimide resin according to parts by weight, starting stirring, heating to 80 ℃, preserving heat for 2 hours until the resin is completely dissolved, preparing a semi-finished product D, and cooling to 40 ℃ for standby.
Step d: and C, putting the semi-finished product C obtained in the step b into the semi-finished product D prepared in the step C, respectively putting 8 parts by weight of phenolic resin, 228 parts by weight of polyamide imide resin, 40 parts by weight of methyl phenyl polysiloxane resin and 0.5 part by weight of flatting agent (BYK-300), and carrying out heat preservation and stirring for 1h at the temperature of 55 ℃ to obtain transparent uniform finished product liquid.
Step e: and testing the viscosity/solid content of the finished product, and filtering and packaging the finished product by a 250-mesh filter screen to obtain the finished product.
Comparative example:
step a: taking 325 parts of N-methylpyrrolidone and 65 parts of dimethylacetamide according to the mass ratio, adding the mixture into a reaction kettle with a condensing reflux pipe, stirring and mixing the mixture uniformly at normal temperature, putting down 50 parts of the mixture for standby, marking the mixture as standby solvent B, and marking the rest solvent as solvent A;
step b: stirring and heating the solvent A in the reaction kettle to 60 ℃ according to the requirements, adding 245 parts of polysulfone resin according to the parts by weight, heating to 100 ℃, keeping the temperature and stirring until the polysulfone resin is completely dissolved, and cooling to 45 ℃ to obtain a semi-finished product C;
step c: and D, adding 50 parts of the standby solvent B of the mixed solution prepared in the step a into a reaction kettle with a stirrer and a reflux device, adding 25 parts of bismaleimide resin according to parts by weight, starting stirring, heating to 80 ℃, preserving heat for 2 hours until the resin is completely dissolved, preparing a semi-finished product D, and cooling to 40 ℃ for standby.
Step d: and C, putting the semi-finished product C obtained in the step b into the semi-finished product D obtained in the step C, respectively putting 70 parts of polyamide imide resin, 40 parts of methyl phenyl polysiloxane resin and 0.3 part of flatting agent (BYK-300) according to parts by weight, and carrying out heat preservation and stirring for 1h at the temperature of 55 ℃ to obtain transparent and uniform finished product liquid.
Step e: and testing the viscosity/solid content of the finished product, and filtering and packaging the finished product by a 250-mesh filter screen to obtain the finished product.
The physicochemical indexes of the heat-resistant and oil-resistant coating prepared by the method are compared with the test performance of the coated wire, and the following table (and comparing the performance of the conventional heat-resistant polyester imide enameled wire):
* Electromagnetic wire specification: 1.50X4.00 mm.
* Wire test standard reference: T/CEEIA415-2019 standard
As can be seen from the test results of the table, the heat-resistant and oil-resistant water and electricity wire insulating paint manufactured by adopting the technical route of the invention has good physicochemical property and storage stability; the electromagnetic wire prepared by coating the coating has the heat-resistant grade reaching more than 200 ℃, excellent electrical insulation performance, good surface quality and excellent oil and water corrosion resistance, can completely meet the performance standard requirements of the T/CEEIA415-2019 new energy automobile oil-cooled driving motor, and achieves the expected design target.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The preparation method of the heat-resistant oil-resistant water-type electromagnetic wire insulating coating is characterized by comprising the following raw materials in parts by weight:
264-308 parts of N-methylpyrrolidone, 55-62 parts of dimethylacetamide, 203-246 parts of dimethylbenzene, 200 parts of polysulfone resin, 114-228 parts of polyamide-imide resin, 20-50 parts of bismaleimide resin, 8-20 parts of phenolic resin, 0.2-0.5 part of flatting agent and 20-40 parts of methylphenyl polysiloxane resin;
and the specific preparation process is as follows:
step a: taking 264-308 parts of N-methylpyrrolidone, 55-62 parts of dimethylacetamide and 203-246 parts of dimethylbenzene according to the mass ratio, adding the mixture into a reaction kettle with a condensing reflux pipe, stirring and mixing the mixture uniformly at normal temperature, putting down 40-100 parts of the mixture for standby, marking the mixture as a standby solvent B, and marking the rest solvent as a solvent A;
step b: stirring and heating the solvent A in the reaction kettle to 50-60 ℃ according to the required weight portion, adding 200 parts of polysulfone resin, heating to 90-100 ℃, keeping the temperature and stirring until the polysulfone resin is completely dissolved, and cooling to 45-55 ℃ to obtain a semi-finished product C;
step c: adding 40-100 parts of the standby solvent B of the mixed solution prepared in the step a into a reaction kettle with a stirrer and a reflux device, adding 20-50 parts of bismaleimide resin according to parts by weight, starting stirring, heating to 70-80 ℃, preserving heat for 1-2 hours until the resin is completely dissolved, preparing a semi-finished product D, and cooling to 40-50 ℃ for standby;
step d: c, putting the semi-finished product C obtained in the step b into the semi-finished product D obtained in the step C, respectively putting 8-20 parts of phenolic resin, 114-228 parts of polyamide imide resin, 20-40 parts of methyl phenyl polysiloxane resin and 0.2-0.5 part of flatting agent according to parts by weight, and carrying out heat preservation and stirring for 1h at the temperature of 45-55 ℃ to obtain transparent uniform finished product liquid;
step e: and testing the viscosity/solid content of the finished product, and filtering and packaging the finished product by a 250-mesh filter screen to obtain the finished product.
2. The method for preparing a heat-resistant and oil-resistant electromagnetic wire insulation coating according to claim 1, wherein the polysulfone resin is a medium molecular weight resin with a molecular weight of 1.5-2.5w.
3. The method for preparing a heat and oil resistant water type electromagnetic wire insulation coating according to claim 1, wherein the polyamide imide resin is an electromagnetic wire insulation coating.
4. The method for preparing a heat-resistant and oil-resistant electromagnetic wire insulation coating according to claim 1, wherein the phenolic resin is a thermosetting phenolic resin.
5. The method for preparing the heat-resistant and oil-resistant water-type electromagnetic wire insulating paint according to claim 1, wherein the leveling agent is BYK-300 silane leveling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310044372.3A CN116179076B (en) | 2023-01-30 | 2023-01-30 | Preparation method of heat-resistant oil-resistant water-type electromagnetic wire insulating paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310044372.3A CN116179076B (en) | 2023-01-30 | 2023-01-30 | Preparation method of heat-resistant oil-resistant water-type electromagnetic wire insulating paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116179076A true CN116179076A (en) | 2023-05-30 |
| CN116179076B CN116179076B (en) | 2024-03-26 |
Family
ID=86433771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310044372.3A Active CN116179076B (en) | 2023-01-30 | 2023-01-30 | Preparation method of heat-resistant oil-resistant water-type electromagnetic wire insulating paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116179076B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1791647A (en) * | 2003-05-21 | 2006-06-21 | 日立化成工业株式会社 | Primer, conductor foil with resin, laminate and process for producing the laminate |
| CN104673085A (en) * | 2015-03-09 | 2015-06-03 | 溧阳市佳禾电子材料有限公司 | Heat-resistant enameled wire insulating varnish and preparation method thereof |
| CN106318197A (en) * | 2016-08-24 | 2017-01-11 | 江门市安诺特炊具制造有限公司 | Improved heat resistance and corrosion resistance thermal spray coating and preparing method thereof |
| CN108025980A (en) * | 2015-09-16 | 2018-05-11 | 大日精化工业株式会社 | Alumina series thermal conductivity oxide and its manufacture method |
-
2023
- 2023-01-30 CN CN202310044372.3A patent/CN116179076B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1791647A (en) * | 2003-05-21 | 2006-06-21 | 日立化成工业株式会社 | Primer, conductor foil with resin, laminate and process for producing the laminate |
| CN104673085A (en) * | 2015-03-09 | 2015-06-03 | 溧阳市佳禾电子材料有限公司 | Heat-resistant enameled wire insulating varnish and preparation method thereof |
| CN108025980A (en) * | 2015-09-16 | 2018-05-11 | 大日精化工业株式会社 | Alumina series thermal conductivity oxide and its manufacture method |
| CN106318197A (en) * | 2016-08-24 | 2017-01-11 | 江门市安诺特炊具制造有限公司 | Improved heat resistance and corrosion resistance thermal spray coating and preparing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116179076B (en) | 2024-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101613572B (en) | Polyester-imide wire coating enamel and preparation method thereof | |
| US7157506B2 (en) | Resin composition with excellent dielectric characteristics, process for producing resin composition, varnish prepared from the same, process for producing the same, prepeg made with these, and metal-clad laminate | |
| CN105778506B (en) | A kind of organosilicon resin composition and prepreg, laminate, copper-clad plate and aluminum substrate using it | |
| CN103059304B (en) | Preparation and application of long-acting anticorrosion temperature-resistant coating | |
| CN103694642A (en) | Thermosetting resin composition and application thereof | |
| CN1187421C (en) | H-grade low-temp. beading polyurethane paint wire-covering paint | |
| CN102676046B (en) | Self-lubricating polyimide wire enamel and preparation method thereof | |
| CN103849118A (en) | Resin composition for printed circuit board, insulating film, prepreg and printed circuit board | |
| CN103180385B (en) | Resin combination, the prepreg using this resin combination and plywood | |
| CN114836129B (en) | Environment-friendly heat insulation coating and preparation method thereof | |
| CN116179076B (en) | Preparation method of heat-resistant oil-resistant water-type electromagnetic wire insulating paint | |
| CN107129729B (en) | B-grade heat-resistant polyvinyl formal enameled wire insulating paint and preparation method thereof | |
| CN104673085A (en) | Heat-resistant enameled wire insulating varnish and preparation method thereof | |
| CN111647159B (en) | Polyimide film and preparation method thereof | |
| CN111154233A (en) | Flame-retardant epoxy resin based on iron-containing nickel silicate and preparation method thereof | |
| CN108441089B (en) | Water-based impregnating insulating paint for insulating treatment of battery car motor and rolling impregnating process of battery car motor | |
| CN104087163A (en) | Insulating varnish and preparation method thereof | |
| CN106398464B (en) | A kind of bio-oil modified epoxy anticorrosive paint and preparation method thereof | |
| CN104152037B (en) | A kind of polyamidoimide paint of the high adhesion force of environment-friendly type and preparation method thereof | |
| CN104616743B (en) | High-hydrophobicity enameled wire for dry-type power transformer | |
| JP2018053142A (en) | Lubricant coating and lubricant coated film | |
| KR100868136B1 (en) | Insulated electric wire | |
| CN112226154A (en) | High-strength polyesterimide wire enamel and preparation method thereof | |
| CN112679691A (en) | Organic silicon modified polyamide imide for cooker coating and preparation method thereof | |
| CN101962503B (en) | High temperature resistant electromagnetic wire self-bonding paint and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |