CN107177245A - A kind of water nano coating composition and its application - Google Patents

A kind of water nano coating composition and its application Download PDF

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Publication number
CN107177245A
CN107177245A CN201710479992.4A CN201710479992A CN107177245A CN 107177245 A CN107177245 A CN 107177245A CN 201710479992 A CN201710479992 A CN 201710479992A CN 107177245 A CN107177245 A CN 107177245A
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nano
coating composition
particle
water
nano coating
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周浪
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Wuxi Wound Glory Is Learned Materials Co Ltd
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Wuxi Wound Glory Is Learned Materials Co Ltd
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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
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/18—Homopolymers or copolymers of tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • 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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
    • C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
    • C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica

Abstract

The present invention relates to a kind of water nano coating composition and its application, belong to nano composite material technical field.It includes 1% 40% nano-particles, 10% 70% fluoropolymers, and remaining is aqueous medium, and pH value is 7 after it is mixed；Nano-particle is stably dispersed in aqueous medium first, nanometer water particle slurry is obtained, then proceedes to add fluoropolymer, produces the aqueous nano coating composition of product.The composition that the present invention is provided possesses excellent adhesive property, insulating properties, anti-electrical breakdown performance.

Description

A kind of water nano coating composition and its application
Technical field
The present invention relates to a kind of water nano coating composition and its application, belong to nano composite material technical field.
Background technology
In recent years, high-speed railway, electric automobile, the continuous growth of wind power generating set, the use of high-power frequency conversion motor It is more and more universal, moreover, proposing more harsh requirement to reliability of all kinds of variable-frequency motors in longtime running.At present, Physics, electric property are excellent and have the first choice that the Kapton of corona-resistance property is variable-frequency motor coiling group insulating properties concurrently Insulating materials.
On stricti jurise, Corona-resistant polyimide film material, it is general using addition alumina in Nano level, it is nano oxidized There is provided good thermal conductivity and electrical insulating property for the inorganic nano materials such as titanium, nano silicon.And due to using bulk doped Method, it is compound because resin viscosity is too big, or for solid phase, and physical dispersion has the limit, the content of nano aluminium oxide is limited in Less than 15%, film thickness is 10~50 micron thickness.
And with the more and more higher of power demand, while in real process, the amount of heat that electromagnetic wire is produced is general Way is that polytetrafluoroethylene (PTFE) hexafluoroethylene polymer (F-46) emulsion is coated on Kapton, wrapped coil after drying, Caking property, insulating properties are provided after high temperature sintering.
It is molten there is provided a kind of inorganic powder material and plastic pellet progress solvent that China applies for a patent 201380048434.2 After solution carry out blending prepares anti-electrical breakdown composite method, but be due to inorganic particulate scattered needs using largely it is organic Solvent, and need to be crushed using means such as grinding distributions, this method complexity is cumbersome, subsequently prepares a large amount of solvents in film Volatilization process easily cause environmental pollution and personnel health's infringement, while there is the scattered not good possibility of nano-particle, confrontation electricity Breakdown performance has many negative effects.
Chinese patent CN103029395 proposes a kind of compound polyimide/perfluor film, and combines the scattered nanometer of solvent Material, forms the solution of compound corona-resistant film, but this method in coating nano-composite coating due to equally using The DMA class solvent of a large amount of similar infringement human body healthy reproductions, has disadvantage to the health of environment and operating personnel End.
China applies for a patent the patents such as 200710024321.5,201110380151.0, and to there is nano-particle scattered tired The defect that difficult, a large amount of organic solvents of preparation technology are used.
Chinese patent CN103832033B provides a kind of double-deck Inverter fed motor-perfluoroethylene-propylene laminated film, this method Also just using non-proton class boiling point solvent DMA class solvent equal solvent come dispersing nanoparticles, to environment and people Member's safety hazard is very big.
Needed accordingly, there exist a kind of method of environmentally friendly, nano-particle and the compound superior insulation material of polymer, relatively In polymer, they have excellent corona-resistance property, breakdown strength.
The content of the invention
The purpose of the present invention is to overcome above-mentioned weak point there is provided a kind of water nano coating composition and its application, is had Have relative to the elevated adhesive property of polymer, insulating properties, anti-electrical breakdown performance etc..
Technical scheme, a kind of water nano coating composition, formula rate is by mass percentage：Including 1%-40% nano-particles, 10%-70% fluoropolymers, remaining is aqueous medium, and pH value is 7 after it is mixed；It will receive first Rice corpuscles is stably dispersed in aqueous medium, obtains nanometer water particle slurry, then proceedes to add fluoropolymer, produces production Product water nano coating composition.
Further, by mass percentage, the content of the nano-particle is 5%~40%, and fluoropolymer contains Measure as 50%~95%.
The application of the water nano coating composition, insulating materials or dielectric materials are can be applied to after film forming matter solidification In.
Aqueous nanoparticle composition is coated with the one or both sides of Kapton or corona-resistant polyimide film, And contain nano-particle/fluoropolymer laminated film through being dried to obtain corona-resistant polyimide film coating.
Water nano coating composition is coated on corona-resistant polyimide film, it, which has, is obviously improved Inverter fed motor and hits Wearing property, and keep adhesive property, weather resistance.
The Kapton that the present invention can be coated with may be selected addition Kapton, add the poly- of inorganic nano-particle Imide membrane, wherein the selection optimized is the Dupont chemistry for adding nano alumina particlesCR types virtue Fragrant Kapton, particularly with the addition of the nano alumina particles of surface treatmentAromatic polyimide Film.
It can equally include with the addition of the PEI, polyether-ether-ketone, polyamides of inorganic nano-particle as the selection of basement membrane Amine, Kynoar, polysulfones, polyphenylene oxide, polyester, PEO, cyaniding makrolon or their copolymer or blend.
Further, the nano-particle or water paste used in the present invention can be general commercially available, such as Al2O3、 SiO2、ZrO2、CeO2、Si3N4、TiO2Or its mixture.
The further nano-particle is Al2O3、SiO2Or its mixture.
On the one hand, nano-particle can have arbitrary shape.Shape include, but are not limited to spherical, aspherical, whisker, The irregular shapes such as shaft-like, triangle.
On the other hand, the particle size range of nano-particle is 10~999nm at least in a dimension, and preferably D90 is less than 100nm, method of testing is that laser particle analyzer analyzes material powder particle diameter.
Its decentralized medium of nano-particle or water paste used in the present invention is water, deducts ionic impurity to stability And the influence of follow-up electrical property, especially from deionized water.
Nano-particle and nanometer water slurry that the present invention is selected, its stable mechanism can be charge stable, high-molecular-weight poly The modes such as compound anchoring, have the advantages that dispersion stabilization, are not susceptible to precipitation.These nano materials have higher degree, height The advantages of specific surface area and narrow size are distributed, therefore suitable for Kapton, fluorinated ethylene propylene composition It is added and lifts physics, chemistry, electrical property of material etc..
The nano-particle and slurry specifically selected be preferably：
Nano aluminium oxide water paste：W-640ZX, Evonik Degussa Corporation；20、40、60、18HP\ HP14、HP18, Sasol Corporation；
Ball shaped nano silica spheroidal particle：SO-C1(SiO2)、SO-C2(SiO2)、SO-E1(SiO2)、SO-E2 (SiO2), Micron Co., Ltd.s (Japan), Admatechs corporation (Japan)；
Unformed aerosil nano-particle：R972, R7200, TS-100, OK500, OK607, Evonik Degussa Corporation；
Nano aluminium oxide spheroidal particle：AFSP-20(Al2O3)Denka Electronic materials(Japan)； AO802、AO502(Al2O3)Micron Co.,Ltd.(Japan)；
Unformed gaseous oxidation aluminum nanoparticles：81、100、51, Cabot corporation； Alu 130、 Alu 65、 Alu C, Evonik Degussa Corporation；
Armorphous nano Titanium particles, AEROXIDE P25, Evonik Degussa Corporation；
Armorphous nano cerium oxide particles, CeO2,Nanophase Corporation；
Further, the fluoropolymer is without perfluorooctanoic acid polymer.
Further, the fluoropolymer is fluorinated ethylene propylene copolymer emulsion.
Fluorinated ethylene propylene copolymer emulsion is that have tetrafluoroethene to be formed with hexafluoropropene copolymerization, with non-ionic surface The stable aqueous dispersion liquid of activating agent.Resin in its emulsion is thermoplasticity, the excellent specific property with typical fluororesin, is continued Temperature in use is 200 DEG C, and maximum operation (service) temperature reaches 240 DEG C, shows that chemistry is lazy to almost all of industrial chemical and solvent Property.Its product has excellent temperature tolerance, corrosion resistance, excellent chemical inertness, good electrical insulating property and low-friction coefficient.
Typical perfluoroethylene-propylene dispersion liquid technical indicator such as Daikin FEP emulsions NEOFLON ND-1FEP disperse Emulsion index：
Table 1
Project Unit Perfluoroethylene-propylene concentrates dispersion liquid
Outward appearance Visually Milky or faint yellow translucent aqueous dispersion
Melt index g/10min 0.8-5.0
Solid content % 48.0~55.0
Surface-active contents % 3.5~8.0
PH value 7.0-9.0
Above fluorinated ethylene propylene emulsion can use the product of the commercially available same type of other manufacturers, example below and right Perfluoroethylene-propylene dispersion liquid described in ratio is Daikin FEP emulsion Neoflon ND-1FEP, but because perfluoro caprylic acid is in water Non-degradable in environment, so as to cause the injury to environment and human health, is gradually replaced with without perfluoro caprylic acid at present Fluoropolymer emulsion.
Fluorinated ethylene propylene emulsion of the present invention can be prepared using known technology, and can be replaced with an equal basis Like product.
Beneficial effects of the present invention：The composition that the present invention is provided possesses excellent adhesive property, insulating properties, anti-electric shock Wear performance.
Brief description of the drawings
Fig. 1 is water nano coating composition coating schematic diagram of the present invention.
Fig. 2-1 is amorphous nano-particle R972 SEM scanning schematic diagrames.
Fig. 2-2 is nano spherical particle A0-502 SEM scanning schematic diagrames.
Description of reference numerals：1st, corona-resistant polyimide film；2nd, fluorinated ethylene propylene/inorganic nano-particle is combined Layer.
Embodiment
Embodiment 1-3
Using the nano-particle and the compositely proportional of fluoropolymer emulsion of 2% weight content, specifically match somebody with somebody the such as institute of table 2 Show.
Table 2
Embodiment 4-6
Using the nano-particle and the compositely proportional of fluoropolymer of 5% weight content, specific proportioning is as shown in table 3.
Table 3
Embodiment 7-9
Using the nano-particle and the compositely proportional of fluoropolymer of 15% weight content, specific proportioning is as shown in table 4.
Table 4
Comparative example 1
Use the NEOFLON ND-1FEP dispersion emulsions for being not added with any nano-particle addition.
Application Example 1
Corona-resistant polyimide film is coated with and drying process：It is sub- in Inverter fed motor polyamides by the way of roller coat or dip-coating The micron thickness of amine film coated 25~30, and removing moisture is dried through program mode, by 260~330 DEG C of sintering processes, that is, obtain Composite membrane.
Compound film properties test
Adhesive property is detected：Method is to the caking property for the laminated film performance being made according to as defined in national standard GB13542.6 It can be tested.
Corona-resistance property is tested：According to GB21707-2008《Frequency control special three-phase asynchronous motor isolation specifications》, Using the JGM-3F type high-frequency impulse insulation testers of Shanghai application for issue detecting instrument Co., Ltd, to the Inverter fed motor polyamides Asia being made The corona-resistance property of amine-nano-particle fluorine-containing coat laminated film is tested.Motor used is 6mm stainless steel electrodes, test Temperature is 23 ± 2 DEG C, and crest value of impulse voltage is 3.0kv；Pulse duty factor is 50%；Pulse frequency is 20KHZ；Impulse waveform and Polarity：Bipolar square wave；Pulse rise time (load):50ns.
Heat conductivility is tested：According to ASTM D5470, Netch companies LFA467 laser thermal conductivity test instrument is tested；
Composite membrane test data：Kapton thickness is 25 μm；Nano-particle and fluorinated ethylene propylene composite bed Thickness is 13 μm.
The data of embodiment 1-9 and comparative example 1 are specifically as shown in table 5.
Table 5
As shown in Table 5, the fluorinated ethylene propylene that Nanocomposites are added on corona-resistant polyimide film is combined After layer, corona-resistance property, heat conductivility can be obviously improved.

Claims (11)

1. a kind of water nano coating composition, it is characterized in that formula rate is by mass percentage：Including 1%-40% nanoparticles Son, 10%-70% fluoropolymers, remaining is aqueous medium, and pH value is 7 after it is mixed；Nano-particle is stably dispersed in first Aqueous medium, obtains nanometer water particle slurry, then proceedes to add fluoropolymer, produces the aqueous nano coating group of product Compound.
2. water nano coating composition as claimed in claim 1, it is characterized in that：The nano-particle is Al2O3、SiO2、ZrO2、 Si3N4、TiO2In one or two kinds of more than.
3. water nano coating composition as claimed in claim 1, it is characterized in that：The fluoropolymer is without perfluoro caprylic acid Birds of the same feather flock together compound.
4. water nano coating composition as claimed in claim 1, it is characterized in that：The aqueous medium is deionized water.
5. water nano coating composition as claimed in claim 2, it is characterized in that：The nano particle diameter is 10 ~ 999nm.
6. water nano coating composition as claimed in claim 2, it is characterized in that：The nano-particle is Al2O3、SiO2Or its Mixture.
7. water nano coating composition as claimed in claim 5, it is characterized in that：The nano particle diameter is 10 ~ 100nm.
8. water nano coating composition as claimed in claim 3, it is characterized in that：The fluoropolymer is perfluoroethylene allyl Alkene copolymer emulsion.
9. water nano coating composition as claimed in claim 1, it is characterized in that：By mass percentage, the nano-particle Content be 5% ~ 40%, the content of fluoropolymer is 50% ~ 95%.
10. the application of one of the claim 1-9 water nano coating compositions, it is characterized in that：It can be answered after film forming matter solidification For in insulating materials or dielectric materials.
11. the application of water nano coating composition as claimed in claim 10, it is characterized in that：In Kapton or resistance to electricity The one or both sides coating aqueous nanoparticle composition of dizzy Kapton, and it is thin through being dried to obtain corona-resistant polyimide Film coating contains nano-particle/fluoropolymer laminated film.
CN201710479992.4A 2017-06-22 2017-06-22 A kind of water nano coating composition and its application Pending CN107177245A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11549035B2 (en) 2020-12-16 2023-01-10 Saint-Gobain Performance Plastics Corporation Dielectric substrate and method of forming the same
US11596064B2 (en) 2020-07-28 2023-02-28 Saint-Gobain Performance Plastics Corporation Dielectric substrate and method of forming the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103832033A (en) * 2013-12-23 2014-06-04 深圳瑞华泰薄膜科技有限公司 Corona resistant polyimide-polyfluorinated ethylene propylene composite film and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103832033A (en) * 2013-12-23 2014-06-04 深圳瑞华泰薄膜科技有限公司 Corona resistant polyimide-polyfluorinated ethylene propylene composite film and preparation method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11596064B2 (en) 2020-07-28 2023-02-28 Saint-Gobain Performance Plastics Corporation Dielectric substrate and method of forming the same
US11805600B2 (en) 2020-07-28 2023-10-31 Saint-Gobain Performance Plastics Corporation Dielectric substrate and method of forming the same
US11549035B2 (en) 2020-12-16 2023-01-10 Saint-Gobain Performance Plastics Corporation Dielectric substrate and method of forming the same

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