CN104962167B - A kind of high-temperature insulating paint and preparation method thereof - Google Patents
A kind of high-temperature insulating paint and preparation method thereof Download PDFInfo
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- CN104962167B CN104962167B CN201510339641.4A CN201510339641A CN104962167B CN 104962167 B CN104962167 B CN 104962167B CN 201510339641 A CN201510339641 A CN 201510339641A CN 104962167 B CN104962167 B CN 104962167B
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- temperature insulation
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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
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/308—Wires with resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention provides a kind of high-temperature insulating paint and preparation method thereof.High-temperature insulating paint is grouped into by the following each group of weight proportion：Poly- phthalimide and or 40 50 parts of polyester modified epoxy resin；20 30 parts of diluent；5 20 parts of firming agent；35 parts of dispersant；5 10 parts of coupling agent；Wherein, described diluent is the mixture of acrylic resin and dichloroethanes；Described dispersant is made up of BY K370 type wetting dispersing agent, curing aluminum and graphite.Rationally, its preparation method is simple for high-temperature insulating paint scientific formulation of the present invention, and this high-temperature insulating paint, while ensureing excellent high temperature resistant, insulating properties and growing environmental requirement, also has the performance of Inverter fed motor.
Description
Technical field
The present invention relates to insullac technology, more particularly, to a kind of high-temperature insulating paint and preparation method thereof.
Background technology
Fire resistant anticorrosive paint generally refers to more than 200 DEG C, paint film invariant color, does not fall off, and remains to keep suitable
The coating of physical and mechanical propertiess.It is widely used in chimney in high temperature position, smoke discharging pipe, high temperature furnace, petroleum cracking consersion unit
And the coating protection of aircraft, guided missile, aerospace equipment etc..The Insulation Problems of high-tension electricity part are always high-tension electricity product reliability
The important component part of research.It is various multiple that high-tension electricity part is faced with high/low temperature alternation, thermal vacuum, vibration etc. in application process
Miscellaneous severe spatial environmentss.The many factors of impact high-tension electricity product insulating properties, including the physical property of device itself, insulation
Characteristic of structure design and insulant etc..Wherein, the physical and chemical performance of insulant is impact high-tension electricity product insulation
One of principal element of reliability.
It is diluent that the VPI impregnated insulating paint of high-voltage motor field application at present is mostly styrene or vinyltoluene
Polyester system, polyester modified epoxy resin system, the also epoxy anhydride system of relatively environmental protection.But styrene is in room temperature
Under vapour pressure be about 853Pa, high volatility, scent of can release in dipping lacquer and baking process, not only cause to waste, and
There is larger harm to operator and surrounding.In VPI technique, because styrene saturated vapour pressure itself is higher, surely
Reciprocal of duty cycle is higher, and when absolute pressure is less than 800 Pa, insullac occurs a lot of foams, and liquid level produces substantial amounts of fog simultaneously, from
And it is not full to lead to occur air gap, filling in insulation system.In addition styrene flash-point only has 34.4 DEG C, the workpiece after dipping lacquer
It is susceptible in baking process explode, industrial safety is produced and causes serious harm.Although vinyltoluene boiling point is higher, poison
Property is relatively low, but vinyltoluene abnormal smells from the patient is larger, and has explosiveness, still has considerable influence to operator and environment, not
There is thorough solution environmental protection sex chromosome mosaicism
With industrial continuous development, to the heat resistant requirements of insullac and coating also can more and more higher, adopt at present
High-temperature insulating paint and coating variety oneself can not meet demand.Therefore, exploitation novel fire resistant insullac and coating are that have completely
Necessary, and have far-reaching significance.
Content of the invention
It is an object of the invention to, exist with degree environmental issue for existing insullac, propose a kind of high-temperature insulation paint,
Meet growing environmental requirement, while ensureing excellent high temperature resistant and insulating properties, also there is the performance of Inverter fed motor.
For achieving the above object, the technical solution used in the present invention is：A kind of high-temperature insulation paint, following by weight proportion
Each group is grouped into：
Poly- phthalimide and or polyester modified epoxy resin 40-50 part；
Diluent 20-30 part；
Firming agent 5-20 part；
Dispersant 3-5 part；
Coupling agent 5-10 part；
Wherein, described diluent is the mixture of acrylic resin and dichloroethanes；
Described dispersant is made up of BY-K370 type wetting dispersing agent, curing aluminum and graphite, and described BY-K370 type moistens
Hygroscopic water powder introduces the dispersive property being conducive to improving color stuffing；The compound use of curing aluminum and graphite is conducive to improving coating
Gloss.Add suitable dispersant that coating can be made to form stable dispersion, improve the application property of coating and improve film
Performance.
Further, described high-temperature insulation paint, is grouped into by the following each group of weight proportion：
Poly- phthalimide and polyester modified epoxy resin 40-50 part；
Diluent 20-30 part；
Firming agent 5-10 part；
Dispersant 4-5 part；
Coupling agent 5-10 part；
Wherein, described diluent is 1 for weight proportion:1 acrylic resin and the mixture of dichloroethanes；
Described dispersant is made up of BY-K370 type wetting dispersing agent, curing aluminum and graphite, and its weight proportion is 2:2:5.
Further, the mol ratio of described poly- phthalimide and polyester modified epoxy resin is 1:2-5.
Further, described acrylic resin is the acrylic resin of low-molecular-weight.
Further, described firming agent is latent epoxy resin curing agent.
Further, described coupling agent is dehydration glycerol propyl ether trimethoxy silane, and described coupling agent can improve resin
Wettability to inorganic matters, improves the compatibility of resin and inorganic matters, forms chemical bond, thus changing between resin and inorganic matters
The interface adhesion of kind storeroom, improves the performance of material under wet environment.Clean metal base surface is easily inhaled in the environment
Enclose water membrane, so that hydrophobic base material is difficult to its moistening.After adding a small amount of silane coupler in coating, silane can migrate
To the interface of coating and base material, the reaction of moisture with surface, it is hydrolyzed into silanol base, and then form hydrogen bond with substrate surface through base
Or be condensed.Meanwhile, mutually condensation, oligomerisation forms cancellated film and covers in ground each intermolecular silanol base of silane again
Surface.In addition, organo silane coupling agent can also react formation chemical bond or Van der Waals force with the organic component in coating, thus
Complete the coupling between two kinds of chemical property different materials.Silane coupler is exactly to pass through this chemical reaction or physical action,
Formed molecular bridge originally between mutually inert high molecular polymer and inorganic low material, the two was firmly adhered to together.
The auxiliary agent functioning primarily as enhancing adhesive force of silane coupler in coating, it can very significantly strengthen coating to each
Plant the initial adhesion of metal surface, and the adhesive force under water logging and other harsh conditions.
Further, described high-temperature insulation paint also includes the aluminium oxide that weight portion is 3-9 part, and the addition of described aluminium oxide makes
The dielectric loss of paint film gradually rises, and the Inverter fed motor time of Inverter fed motor time more former paint improves a lot, and has reached raising resistance to
The purpose of high-temperature insulation paint corona-resistance property.
Further, described high-temperature insulation paint also includes the pigment that weight portion is 5-10 part.
The invention also discloses a kind of preparation method of above-mentioned high-temperature insulation paint, comprise the following steps：Claim by weight ratio
Take raw material, poly- phthalimide and polyester modified epoxy resin are heated to 90～100 DEG C, add diluent while stirring, be adjusted to
Viscosity is 80～120 s, adds firming agent, dispersant and coupling agent, raw material stirring is uniformly obtained after being cooled to 60～65 DEG C
High-temperature insulation paint.
Further, aluminium oxide and pigment are added after being cooled to 60～65 DEG C.
High-temperature insulating paint scientific formulation of the present invention, rationally, its preparation method is simple, easy, compared with prior art
There is advantages below：
（1）High-temperature insulating paint of the present invention has excellent physical property after testing, its specific insulation (Ω m)
Normality is 1.05 × 1014, immersion 24h is 7.68 × 1013；At in water under room temperature, 168 h postadhesion power are 100/100,300 DEG C
Lh postadhesion power is 100/100, is suitable to pre-coated metal.The performance of insullac is according to GB/T 15022.2 2007《Electric insulation
Solventless polymerisable resinous compound test method》And GB/T1981.2 2009《Electric insulation lacquer test method》Surveyed
Examination.
（2）The more polystyrene systems of relatively more current high-voltage motor field application, vinyltoluene（VT）System be obtained
Single-component epoxy non-volatile High-Voltage Insulation paint solidification fugitive constituent, the solidification fugitive constituent of styrene or VT system High-Voltage Insulation paint
All ratio is larger, and all more than 10%, polystyrene systems are even close to 20%.And the fugitive constituent of high-temperature insulating paint of the present invention is much smaller than
The fugitive constituent of both the above system, VOC burst size is relatively low, is conducive to improving electrical strength and the mechanical property of insulation system.
Specific embodiment
The present invention is further described with reference to embodiments：
Embodiment 1
Present embodiment discloses a kind of high-temperature insulation paint, it is grouped into by the following each group of weight proportion：
Poly- phthalimide and 50 parts of polyester modified epoxy resin；
25 parts of diluent；
10 parts of firming agent；
3 parts of dispersant；
5 parts of coupling agent；
10 parts of pigment.
Wherein, described diluent is 1 for weight proportion:1 acrylic resin and the mixture of dichloroethanes；
Described dispersant is made up of BY-K370 type wetting dispersing agent, curing aluminum and graphite, and its weight proportion is 2:2:5.
The mol ratio of described poly- phthalimide and polyester modified epoxy resin is 1:3.
Described acrylic resin is the acrylic resin of low-molecular-weight.
Described firming agent is latent epoxy resin curing agent.
Described coupling agent is dehydration glycerol propyl ether trimethoxy silane, and described coupling agent can improve resin to inorganic matters
Wettability, improves the compatibility of resin and inorganic matters, forms chemical bond, thus improving storeroom between resin and inorganic matters
Interface adhesion, improves the performance of material under wet environment.
The invention also discloses a kind of preparation method of above-mentioned high-temperature insulation paint, comprise the following steps：Claim by weight ratio
Take raw material, poly- phthalimide and polyester modified epoxy resin are heated to 90～100 DEG C, add diluent while stirring, be adjusted to
Viscosity is 80～120s, adds pigment, firming agent, dispersant and coupling agent after being cooled to 60～65 DEG C, and raw material stirring is uniform
Obtain high-temperature insulation paint.
Its specific insulation (Ω m) normality of high-temperature insulation paint described in the present embodiment is 1.05 × 1014, immersion 24h be
8.00×1013.10% weightless temperature is 420 DEG C.
Embodiment 2
Present embodiment discloses a kind of high-temperature insulation paint, it is grouped into by the following each group of weight proportion：
40 parts of polyester modified epoxy resin；
28 parts of diluent；
10 parts of firming agent；
5 parts of dispersant；
5 parts of coupling agent.
Wherein, described diluent is 1 for weight proportion:1 acrylic resin and the mixture of dichloroethanes；
Described dispersant is made up of BY-K370 type wetting dispersing agent, curing aluminum and graphite, and its weight proportion is 2:2:5.
Described acrylic resin is the acrylic resin of low-molecular-weight.
Described firming agent is latent epoxy resin curing agent.
Described coupling agent is dehydration glycerol propyl ether trimethoxy silane, and described coupling agent can improve resin to inorganic matters
Wettability, improves the compatibility of resin and inorganic matters, forms chemical bond, thus improving storeroom between resin and inorganic matters
Interface adhesion, improves the performance of material under wet environment.
The invention also discloses a kind of preparation method of above-mentioned high-temperature insulation paint, comprise the following steps：Claim by weight ratio
Take raw material, poly- phthalimide and polyester modified epoxy resin are heated to 100 DEG C, add diluent while stirring, be adjusted to viscosity
For 100s, add firming agent, dispersant and coupling agent after being cooled to 60～65 DEG C, raw material stirring is uniformly obtained high-temperature insulation
Paint.
Its specific insulation (Ω m) normality of high-temperature insulation paint described in the present embodiment is 1.2 × 1014, immersion 24h is 9.00
×1013.10% weightless temperature is 450 DEG C.
Embodiment 3
Present embodiment discloses a kind of high-temperature insulation paint, it is grouped into by the following each group of weight proportion：
Poly- phthalimide and 50 parts of polyester modified epoxy resin；
25 parts of diluent；
10 parts of firming agent；
3 parts of dispersant；
5 parts of coupling agent；
10 parts of pigment；
5 parts of aluminium oxide.
Wherein, described diluent is 1 for weight proportion:1 acrylic resin and the mixture of dichloroethanes；
Described dispersant is made up of BY-K370 type wetting dispersing agent, curing aluminum and graphite, and its weight proportion is 2:2:5.
The mol ratio of described poly- phthalimide and polyester modified epoxy resin is 1:2-5.
Described acrylic resin is the acrylic resin of low-molecular-weight.
Described firming agent is latent epoxy resin curing agent.
Described coupling agent is dehydration glycerol propyl ether trimethoxy silane, and described coupling agent can improve resin to inorganic matters
Wettability, improves the compatibility of resin and inorganic matters, forms chemical bond, thus improving storeroom between resin and inorganic matters
Interface adhesion, improves the performance of material under wet environment.
The invention also discloses a kind of preparation method of above-mentioned high-temperature insulation paint, comprise the following steps：Claim by weight ratio
Take raw material, poly- phthalimide and polyester modified epoxy resin are heated to 90～100 DEG C, add diluent while stirring, be adjusted to
Viscosity is 80～120 s, adds aluminium oxide, pigment, firming agent, dispersant and coupling agent, by raw material after being cooled to 60～65 DEG C
It is uniformly mixing to obtain high-temperature insulation paint.
Its specific insulation (Ω m) normality of high-temperature insulation paint described in the present embodiment is 1.3 × 1014, immersion 24h is 7.00
×1013.10% weightless temperature is 380 DEG C.
The present invention is not limited to high-temperature insulating paint described in above-described embodiment and preparation method thereof, and wherein each material is joined
The change of ratio is all within protection scope of the present invention.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (7)
1. a kind of high-temperature insulation paint is it is characterised in that be grouped into by the following each group of weight proportion：
Poly- phthalimide and polyester modified epoxy resin 40-50 part；
Diluent 20-30 part；
Firming agent 5-10 part；
Dispersant 4-5 part；
Coupling agent 5-10 part；
Wherein, described diluent is 1 for weight proportion:1 acrylic resin and the mixture of dichloroethanes；
Described dispersant is made up of BY-K370 type wetting dispersing agent, curing aluminum and graphite, and its weight proportion is 2:2:5.
2. according to claim 1 high-temperature insulation paint it is characterised in that described poly- phthalimide and polyester modified epoxy resin
Mol ratio is 1:2-5.
3. according to claim 1 high-temperature insulation paint it is characterised in that described acrylic resin be low-molecular-weight acrylic acid
Resin.
4. according to claim 1 high-temperature insulation paint it is characterised in that described firming agent be latent epoxy resin curing agent.
5. according to claim 1 high-temperature insulation paint it is characterised in that described high-temperature insulation paint also include weight portion be 3-9
The aluminium oxide of part.
6. according to claim 1 high-temperature insulation paint it is characterised in that described high-temperature insulation paint also include weight portion be 5-10
The pigment of part.
7. a kind of preparation method of high-temperature insulation paint described in claim 1-4 any one is it is characterised in that include following walking
Suddenly：Weigh raw material by weight ratio, poly- phthalimide and polyester modified epoxy resin be heated to 90～100 DEG C, while stirring plus
Enter diluent, being adjusted to viscosity is 80～120 s, adds firming agent, dispersant and coupling agent after being cooled to 60～65 DEG C, will
Raw material stirring uniformly obtains high-temperature insulation paint.
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| CN201510339641.4A CN104962167B (en) | 2015-06-18 | 2015-06-18 | A kind of high-temperature insulating paint and preparation method thereof |
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| CN105567076B (en) * | 2016-03-04 | 2018-06-15 | 北京理工大学 | High temperature-resistant wire lacquer composition based on fluorinated poly arylene ether ketone modification by copolymerization polyimides and preparation method thereof |
| CN106883751B (en) * | 2017-04-28 | 2019-04-12 | 国网山东省电力公司平原县供电公司 | A kind of insulated paint and preparation method thereof |
| CN112466663B (en) * | 2020-11-09 | 2022-09-06 | 太仓优盛电子有限公司 | High-temperature dipping treatment process of transformer |
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| JPS5321231A (en) * | 1976-08-10 | 1978-02-27 | Mitsubishi Electric Corp | Electrodeposit coating compounds |
| CN1730262A (en) * | 2005-06-15 | 2006-02-08 | 沈阳海鑫科技有限公司 | Compression molding technique for thermostable polyimide and its composite material |
| CN101343435A (en) * | 2007-07-10 | 2009-01-14 | 上海电缆研究所 | Fire resistant insulating varnish and fire resistant non-magnetism varnished wire, and preparation thereof |
| CN102585663B (en) * | 2012-02-06 | 2013-11-20 | 苏州太湖电工新材料股份有限公司 | Halogen-free flame-retardant high-temperature-resistance insulation paint for motor |
| CN102993917B (en) * | 2012-11-22 | 2015-06-10 | 艾伦塔斯电气绝缘材料(珠海)有限公司 | Impregnating insulating paint for medium-high-voltage motor, and preparation method thereof |
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Address after: Lian Shi Zhen Hua Lin Tai bridge Wuyang 313000 Zhejiang province Huzhou city Nanxun District Patentee after: Huzhou Hujie New Material Co.,Ltd. Address before: Lian Shi Zhen Hua Lin Tai bridge Wuyang 313000 Zhejiang province Huzhou city Nanxun District Patentee before: HUZHOU HUJIE PAINT Co.,Ltd. |
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Denomination of invention: High temperature resistant insulating paint and its preparation method Effective date of registration: 20221202 Granted publication date: 20170301 Pledgee: Zhejiang Nanxun Rural Commercial Bank Co.,Ltd. Hualin sub branch Pledgor: Huzhou Hujie New Material Co.,Ltd. Registration number: Y2022330003371 |
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