CN115093787A - Durable non-stick coating containing hollow glass beads and preparation method thereof - Google Patents

Durable non-stick coating containing hollow glass beads and preparation method thereof Download PDF

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Publication number
CN115093787A
CN115093787A CN202210932198.1A CN202210932198A CN115093787A CN 115093787 A CN115093787 A CN 115093787A CN 202210932198 A CN202210932198 A CN 202210932198A CN 115093787 A CN115093787 A CN 115093787A
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parts
coating
hollow glass
pigment
durable
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张建朝
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Chaoxu International Trade Shanghai Co ltd
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Chaoxu International Trade Shanghai 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
    • C09D179/00—Coating compositions based on 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 C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
    • B05D5/086—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers having an anchoring layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
    • 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
    • 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
    • C09D5/002—Priming 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2301/00—Inorganic additives or organic salts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2320/00—Organic additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2505/00—Polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2506/00—Halogenated polymers
    • B05D2506/10—Fluorinated polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2518/00—Other type of polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2601/00—Inorganic fillers
    • B05D2601/02—Inorganic fillers used for pigmentation effect, e.g. metallic effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2601/00—Inorganic fillers
    • B05D2601/02—Inorganic fillers used for pigmentation effect, e.g. metallic effect
    • B05D2601/10—Other metals
    • 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

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Abstract

The invention discloses a durable non-stick coating containing hollow glass beads, which comprises a bottom coating, a middle coating and a top coating; each layer of structure is made of different materials and proportions and bears different functions. The coating has ultrahigh strength, and the wear resistance and the scratch resistance are greatly superior to those of common non-stick coatings, so that the local high temperature at the bottom of the pot body is avoided by uniform heating, the adaptability problem of the non-stick pot in China is solved, and the service life is greatly prolonged. The invention also discloses a preparation method of the non-stick coating.

Description

Durable non-stick coating containing hollow glass beads and preparation method thereof
Technical Field
The invention relates to a durable non-stick coating containing hollow glass beads and a preparation method thereof. Belongs to the technical field of chemical coatings, and relates to a chemical coating for coating liquid or other fluids on a metal surface.
Background
The non-stick coating has been applied to non-stick pans for more than half a century since the invention of the last century, and is the core technical material of the non-stick pans at the earliest in European and American countries. The non-stick coating has the advantages of being non-stick, free of oil smoke, easy to clean and the like, and is more and more widely applied later, for example, small household appliances such as a sandwich electric baking machine, an electric baking tray, an electric cooker, an air fryer and an electric iron, pots such as a frying pan, a soup pan and a frying pan, and other application scenes such as other cutters, a copying machine roller, demoulding and industrial anti-sticking.
30 years ago, the non-stick coating and the non-stick pan are introduced into China from European and American countries, the earliest domestic is an OEM processing export, the core material non-stick coating is purchased from foreign countries, and the standard of the non-stick pan adopts the foreign standards. Later, with the development of Chinese economy, the living standard of people is higher and higher, the progress of urbanization is continuously promoted, the non-stick pan enters the home of domestic consumers and is accepted by people, particularly in recent years, the popularization rate and the growth rate of the non-stick pan are greatly improved, and the non-stick pan becomes a necessary choice of kitchen supplies.
Since the non-stick pan is introduced from Europe and America, foreign standards are adopted all the time, and newly revised national standards are basically still used and refer to the foreign standards several years ago, but the Chinese cooking habits are greatly different from Europe and America, the Chinese cooking duration is large, a shovel, high-temperature stir-frying and deep-frying are favored, the food types are rich, for example, hard food materials such as snail flower shells and the like, the use frequency and the use strength of the frying pan are extremely high, and the Europe and America are small fire and slow-frying are more frequent, so that the traditional non-stick pan is used in China, the situation of water and soil inequality can be generated, and the non-stick pan can be used due to the fact that the coating is discolored, scratched and depainted to lose the functions and cannot be used. Aiming at the problems, the invention develops the durable non-stick coating, so that the cooker coated with the non-stick pan coating has super wear resistance and scratch resistance, the heating is uniform, the local high temperature at the bottom of the pan body is avoided, and the service life is greatly prolonged.
Summary of the invention
The first purpose of the invention is to provide a durable non-stick coating containing hollow glass beads, so that the cooker coated with the non-stick coating has super wear resistance and scratch resistance, the heating is uniform, the local high temperature at the bottom of the cooker body is avoided, and the service life is greatly prolonged.
A durable non-stick coating containing hollow glass beads comprises a base coat, a middle coat and a surface coat;
the base coat comprises the following raw materials in parts by weight: polyamide-imide: 10-15 parts; polyether ether ketone: 8-12 parts of high-temperature resistant pigment: 0.5-5 parts; hollow glass beads: 10-15 parts; nano silica sol: 10-20 parts; auxiliary agent: 0.5-2.5 parts; cosolvent: 20-30 parts of a solvent; the balance of water; the bottom coating has a three-layer structure, and has the functions of bonding the metal substrate, resisting temperature, protecting the metal substrate from chemical corrosion, improving strength, resisting scraping and heating uniformly.
The intermediate coating is arranged on the base coating, and the raw materials and the proportion thereof are as follows: fluorine resin: 26-40 parts; polyamide-imide: 6-8 parts; polyether ether ketone: 6-8 parts; high-temperature resistant pigment: 0.5-5 parts; nano silica sol: 12-18 parts; auxiliary agent: 0.5-2.5 parts; cosolvent: 10-15 parts; the balance of water; the intermediate coating has a three-layer structure, plays a role in the transition of the interlayer adhesive force between the bonding base coating and the surface coating, and simultaneously, because the granularity of the hollow glass beads of the base coating has rough feeling, the intermediate coating can be filled to ensure that the coating is relatively flat.
The middle coating is also provided with a surface coating, and the surface coating comprises the following raw materials in parts by weight: fluorine resin: 65-75 parts of a solvent; high-temperature resistant pigment: 0-5 parts; auxiliary agent: 5-12 parts of a solvent; the balance being water. The surface coating layer in the three-layer structure mainly plays a good non-stick role
Preferably, the hollow glass beads are tiny hollow round ball powder hollow spheres with the particle size of 10-250 micrometers and the wall thickness of 1-2 micrometers. The hollow glass bead is a novel material which has wide application and excellent performance and is developed in recent years. The product is made of inorganic materials, the main component of the product is borosilicate, and the hollow micro round ball powder hollow ball body has the granularity of 10-250 micrometers and the wall thickness of 1-2 micrometers. The product has the advantages of light weight, large volume, low heat conductivity coefficient, high compressive strength, good dispersibility, fluidity and stability, good chemical stability and the like. In addition, the product also has excellent properties of insulation, self lubrication, sound insulation, no water absorption, fire resistance, corrosion resistance, radiation protection, no toxicity and the like, is subjected to special treatment, has oleophilic and hydrophobic properties, and is very easy to disperse in organic materials such as resin and the like. According to the invention, the hollow glass beads are used as important functional materials, so that the heat conduction uniformity of the coating is ensured, the local high-temperature coating is prevented from being easily damaged, and the compressive strength of the coating is utilized to improve the wear resistance and the scratch resistance of the coating.
Preferably, the particle size of the hollow glass bead is 20-30 micrometers. The particles are too large, the granular feeling of the coating is too strong, the hollow glass beads are not easily wrapped by the binder, the particles are too small, and the functions of uniform heat conduction and compressive strength are not obvious.
Preferably, the thickness of the bottom coating is 45-65 microns.
Preferably, the thickness of the middle coating is 15-25 microns.
Preferably, the high temperature resistant pigment is one or more of titanium white pigment, titanium yellow pigment, carbon black pigment, copper chromium black pigment, iron oxide pigment, ultramarine pigment, cobalt blue pigment, cobalt green pigment, aluminum silver powder and pearl powder. The pigment is used as a coating colorant in the invention, and the pigment is required to have good temperature resistance, safety and no toxicity.
Preferably, the auxiliary agent is one or more of a dispersant, a surfactant, a film forming auxiliary agent and a thickening agent.
Preferably, the thickening agent is one or more of alkali thickening type, bentonite type, cellulose type and xanthan type. The dispersant functions to reduce the time and energy required to complete the pigment dispersion process using a wetting dispersant, stabilize the dispersed pigment dispersion, modify the surface properties of the pigment particles, adjust the motility of the pigment particles, shorten the dispersion time, improve the gloss, improve the tinting strength and hiding power, improve the color development and tone, prevent flooding and floating, prevent flocculation, and prevent sedimentation. The surfactant is mainly nonionic, and has the functions of ensuring the stability of the coating dispersion, reducing the surface tension and improving the wettability of the coating on the metal substrate. The film-forming assistant is used for helping the spreading and leveling of the coating resin and improving the critical cracking film thickness of the fluororesin.
Preferably, the cosolvent is one or a combination of more of N-N dimethyl pyrrolidone, alcohol solvents, alcohol ether solvents and amine solvents, and has the functions of controlling the viscosity and the fluidity of the coating and improving the application property of the coating.
The second purpose of the invention is to provide a preparation method of a durable non-stick coating containing hollow glass beads, which comprises the following steps,
s1, spraying a bottom layer on the base material, drying at the temperature of 80-120 ℃, and cooling;
s2, spraying the middle coating to cover the bottom coating, drying at 150-180 ℃, and cooling;
and S3, finally spraying a surface coating, leveling, drying and sintering at the temperature of 400-420 ℃.
The invention has the beneficial effects that: .
The coating has ultrahigh strength, and the wear resistance and the scratch resistance are greatly superior to those of common non-stick coatings, so that the non-stick pan is heated uniformly to avoid local high temperature at the bottom of the pan body, the adaptability problem of the non-stick pan in China is solved, and the service life is greatly prolonged.
Description of the drawings:
FIG. 1 is a schematic cross-sectional view of a durable, non-stick coating containing hollow glass prepared in this example 1.
Detailed Description
The present invention is further described below in conjunction with the drawings and the embodiments so that those skilled in the art can better understand the present invention and can carry out the present invention, but the embodiments are not to be construed as limiting the present invention.
Example 1
A durable non-stick coating containing hollow glass beads comprises a base coat, a middle coat and a surface coat;
the base coat comprises the following raw materials in parts by weight: polyamide-imide: 10 parts of (A); polyether ether ketone: 8 parts, high-temperature resistant pigment: 0.5 part; hollow glass beads: 10 parts of (A); nano silica sol: 15 parts of a mixture; auxiliary agent: 1 part; cosolvent: 20; the balance of water;
the intermediate coating is arranged on the base coating, and the raw materials and the proportion thereof are as follows: fluorine resin: 30 parts of (1); polyamide-imide: 7 parts; polyether ether ketone: 6 parts; high-temperature resistant pigment: 2 parts of (1); nano silica sol: 14 parts of (1); auxiliary agent: 1 part; cosolvent: 12 parts of (1); the balance of water;
the middle coating is also provided with a surface coating, and the surface coating comprises the following raw materials in parts by weight: fluorine resin: 65 parts of (1); high-temperature resistant pigment: 1 part; auxiliary agent: 6 parts of (1); the balance being water.
The hollow glass beads are tiny hollow round ball powder hollow spheres with the particle size of 20 microns and the wall thickness of 1-2 microns.
Wherein the thickness of the bottom coating is 45-65 microns.
Wherein the thickness of the intermediate coating is 15-25 microns.
The high-temperature resistant pigment is one or a combination of a titanium white pigment, a titanium yellow pigment, a carbon black pigment, a copper chromium black pigment, an iron oxide pigment, an ultramarine pigment, a cobalt blue pigment, a cobalt green pigment, an aluminum silver powder and pearl powder.
Wherein the auxiliary agent is one or a combination of more of a dispersant, a surfactant, a film-forming auxiliary agent and a thickening agent.
Wherein the thickening agent is one or more of alkali thickening agents, bentonite agents, cellulose agents and xanthan gum agents.
Wherein the cosolvent is one or a combination of N-N dimethyl pyrrolidone, alcohol solvents, alcohol ether solvents and amine solvents.
The preparation method of the durable non-stick coating containing the hollow glass beads is characterized by comprising the following steps,
s1, spraying a bottom layer on the base material, drying at 90 ℃ and cooling;
s2, spraying the middle coating to cover the bottom coating, drying at 150 ℃, and cooling;
s3, finally spraying a surface coating, leveling, drying and sintering at the temperature of 400 DEG C
Example 2
A durable non-stick coating containing hollow glass beads comprises a base coat, a middle coat and a surface coat;
the base coat comprises the following raw materials in parts by weight: polyamide-imide: 15 parts of (1); polyether ether ketone: 8 parts, high-temperature resistant pigment: 4 parts; hollow glass beads: 12 parts of (1); nano silica sol: 15 parts of (1); auxiliary agent: 2 parts of a mixture; cosolvent: 25 parts of (1); the balance of water;
the middle coating is arranged on the bottom coating, and the raw materials and the mixture ratio thereof are as follows: fluorine resin: 35 parts of (B); polyamide-imide: 7 parts; polyether ether ketone: 8 parts; high-temperature resistant pigment: 4 parts of a mixture; nano silica sol: 15 parts of a mixture; auxiliary agent: 2 parts of (1); cosolvent: 13 parts; the balance of water;
the middle coating is also provided with a surface coating, and the surface coating comprises the following raw materials in parts by weight: fluorine resin: 75 parts of a mixture; high-temperature resistant pigment: 4 parts of a mixture; auxiliary agent: 11 parts; the balance being water.
The hollow glass beads are tiny hollow round ball powder hollow spheres with the particle size of 25 micrometers and the wall thickness of 1-2 micrometers.
Wherein the thickness of the bottom coating is 45-65 microns.
Wherein the thickness of the intermediate coating is 15-25 microns.
The high-temperature resistant pigment is one or a combination of more of titanium white pigment, titanium yellow pigment, carbon black pigment, copper chromium black pigment, iron oxide pigment, ultramarine pigment, cobalt blue pigment, cobalt green pigment, aluminum silver powder and pearl powder.
Wherein the auxiliary agent is one or a combination of more of a dispersant, a surfactant, a film-forming auxiliary agent and a thickening agent.
Wherein the thickening agent is one or more of alkali thickening agents, bentonite agents, cellulose agents and xanthan gum agents.
The cosolvent is one or a combination of N-N dimethyl pyrrolidone, alcohol solvents, alcohol ether solvents and amine solvents, and has the functions of controlling the viscosity and the fluidity of the coating and improving the application property of the coating.
The second purpose of the invention is to provide a preparation method of the durable non-stick coating containing the hollow glass beads, which comprises the following steps,
s1, spraying a bottom layer on the base material, drying at 110 ℃, and cooling;
s2, spraying the middle coating to cover the bottom coating, drying at 170 ℃, and cooling;
and S3, finally spraying a surface coating, leveling, drying and sintering at the temperature of 410 ℃.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.

Claims (10)

1. The durable non-stick coating containing the hollow glass beads is characterized by comprising a base coat, a middle coat and a surface coat;
the base coat comprises the following raw materials in parts by weight: polyamide-imide: 10-15 parts; polyether ether ketone: 8-12 parts of high-temperature resistant pigment: 0.5-5 parts; hollow glass beads: 10-15 parts; nano silica sol: 10-20 parts; auxiliary agent: 0.5-2.5 parts; cosolvent: 20-30 parts of a solvent; the balance of water;
the middle coating is arranged on the bottom coating, and the raw materials and the mixture ratio thereof are as follows: fluorine resin: 26-40 parts; polyamide-imide: 6-8 parts; polyether ether ketone: 6-8 parts; high-temperature resistant pigment: 0.5-5 parts; nano silica sol: 12-18 parts; auxiliary agent: 0.5-2.5 parts; cosolvent: 10-15 parts; the balance of water;
the middle coating is also provided with a surface coating, and the surface coating comprises the following raw materials in parts by weight: fluorine resin: 65-75 parts of a solvent; high-temperature resistant pigment: 0-5 parts; auxiliary agent: 5-12 parts of a solvent; the balance being water.
2. The durable non-stick coating comprising hollow glass microspheres according to claim 1, wherein the hollow glass microspheres are hollow microspheres with a particle size of 10-250 microns and a wall thickness of 1-2 microns.
3. The durable, non-stick coating comprising hollow glass microspheres of claim 2, wherein the hollow glass microspheres have a particle size of 20 to 30 microns.
4. The durable, non-stick coating comprising hollow glass microspheres of claim 1 wherein the primer layer has a thickness of 45 to 65 micrometers.
5. The durable, non-stick coating comprising hollow glass microspheres of claim 1, wherein the midcoat layer has a thickness of 15 to 25 micrometers.
6. The durable, non-stick coating comprising hollow glass microspheres of claim 1, wherein the high temperature resistant pigment is one or a combination of titanium white pigment, titanium yellow pigment, carbon black pigment, copper chromium black pigment, iron oxide pigment, ultramarine pigment, cobalt blue pigment, cobalt green pigment, aluminum silver powder, and pearl powder.
7. The durable, non-stick coating comprising hollow glass microspheres of claim 1 wherein the adjuvant is one or more of a dispersant, a surfactant, a film forming adjuvant, and a thickener.
8. The durable, non-stick coating comprising hollow glass microspheres of claim 7 wherein the thickener is one or a combination of alkali thickeners, bentonites, cellulosics, xanthan gum.
9. The durable non-stick coating comprising hollow glass microspheres of claim 1, wherein the co-solvent is one or more of N-N dimethyl pyrrolidone, alcohol solvents, alcohol ether solvents, and amine solvents.
10. The method of claim 1, wherein said method comprises the steps of,
s1, spraying a bottom layer on the base material, drying at the temperature of 80-120 ℃, and cooling;
s2, spraying the middle coating to cover the bottom coating, drying at 150-180 ℃, and cooling;
s3, finally spraying a surface coating, leveling, drying and sintering at the temperature of 400-420 ℃.
CN202210932198.1A 2022-08-04 2022-08-04 Durable non-stick coating containing hollow glass beads and preparation method thereof Pending CN115093787A (en)

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CN109054532A (en) * 2018-06-27 2018-12-21 广东富多新材料股份有限公司 A kind of ceramic sol modified polyether ether ketone coating and preparation method thereof
CN109575792A (en) * 2018-12-12 2019-04-05 金华市青荷新材料技术有限公司 A kind of super-strength non-sticking lining and its construction method
CN110079211A (en) * 2019-02-28 2019-08-02 浙江鹏孚隆科技有限公司 Aqueous roller coating non-sticking lining and its coating method with good scratch resistance
CN210870985U (en) * 2018-05-29 2020-06-30 佛山市顺德区美的电热电器制造有限公司 Interior pot and cooking utensil suitable for electromagnetic heating

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CN210870985U (en) * 2018-05-29 2020-06-30 佛山市顺德区美的电热电器制造有限公司 Interior pot and cooking utensil suitable for electromagnetic heating
CN109054532A (en) * 2018-06-27 2018-12-21 广东富多新材料股份有限公司 A kind of ceramic sol modified polyether ether ketone coating and preparation method thereof
CN109575792A (en) * 2018-12-12 2019-04-05 金华市青荷新材料技术有限公司 A kind of super-strength non-sticking lining and its construction method
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Application publication date: 20220923