CN111171682A - Non-sticky coating and coating process thereof - Google Patents
Non-sticky coating and coating process thereof Download PDFInfo
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- CN111171682A CN111171682A CN202010045116.2A CN202010045116A CN111171682A CN 111171682 A CN111171682 A CN 111171682A CN 202010045116 A CN202010045116 A CN 202010045116A CN 111171682 A CN111171682 A CN 111171682A
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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
- C09D163/10—Epoxy resins modified by unsaturated compounds
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- 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
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- 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
- B05D3/04—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 exposure to gases
- B05D3/0406—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 exposure to gases the gas being air
-
- 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
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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
- C09D7/47—Levelling agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- B05D2502/00—Acrylic 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
- B05D2504/00—Epoxy polymers
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- 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
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- 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
- B05D2506/15—Polytetrafluoroethylene [PTFE]
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Paints Or Removers (AREA)
Abstract
The invention discloses a non-sticky coating which comprises the following raw materials in parts by weight: 40-50 parts of epoxy acrylate, 25-32 parts of polyacrylic acid fluorine-containing ester, 25-32 parts of poly (vinylidene fluoride-trifluoroethylene), 10-15 parts of polytetrafluoroethylene powder, 2.5-4 parts of a suspension dispersant, 1-1.4 parts of a leveling agent and 1.5-2 parts of a curing agent. The non-stick coating has excellent lubricating property and non-stick property, can completely meet the use requirements of various processing molds (such as various plastic demolding, baking molds, paper making and textile industries), can not use a demolding agent (can improve the production efficiency), and has excellent durability; in addition, the paint does not contain silicone oil, so that the product is prevented from being polluted; the adhesive force with the base material is large, the loading capacity is large, the impact resistance is good, the flexibility is good, the comprehensive performance is good, and the service life is long.
Description
Technical Field
The invention relates to the technical field of coatings and coating thereof, in particular to a non-sticky coating and a coating process thereof.
Background
Coating is a solid continuous film obtained by one-time coating, and is a thin layer of plastic applied to a substrate of metal, fabric, plastic, etc. for the purpose of protection, insulation, decoration, etc. The coating material can be in a gas state, a liquid state or a solid state, and the type and the state of the coating material are generally determined according to the substrate needing to be sprayed.
The epoxy coating is generally divided into 2 types of oily epoxy coating and water-based epoxy coating, and is divided into wear-resistant epoxy coating and epoxy anticorrosive coating according to service performance, and is strictly divided into antistatic epoxy coating and architectural epoxy decorative coating.
However, the currently used coatings also have the following problems:
1. the lubricating property is poor, the lubricating agent has certain viscosity, and the using requirements of various processing molds (such as various plastic demolding, baking molds, papermaking and textile industries) cannot be met;
2. has low adhesive force with a base material, small loading capacity and poor comprehensive performance, and has short service life when being used for various processing moulds (such as various plastic demoulding, baking moulds, paper making and textile industries).
Based on the situation, the invention provides a non-sticky coating and a coating process thereof, which can effectively solve the problems.
Disclosure of Invention
The invention aims to provide a non-stick coating and a coating process thereof. The non-stick coating is prepared by selecting raw materials, optimizing the content of each raw material, selecting epoxy acrylate, polyacrylic acid fluorine-containing ester, poly (vinylidene fluoride-trifluoroethylene), polytetrafluoroethylene powder, a suspension dispersant, a leveling agent and a curing agent in a proper proportion, not only fully playing the advantages of each raw material, but also complementing each other and promoting each other, wherein the static friction coefficient of the prepared non-stick coating is as low as 0.03, and the dynamic friction coefficient is as low as 0.015, so that the non-stick coating has excellent lubricating property and non-stick property, can completely meet the use requirements of various processing dies (such as various plastic demolding, baking dies, paper making and textile industries), can not use a demolding agent (can improve the production efficiency), and has excellent durability; in addition, the paint does not contain silicone oil, so that the product is prevented from being polluted; the adhesive force with the base material is large, the loading capacity is large, the impact resistance is good, the flexibility is good, the comprehensive performance is good, and the service life is long when the adhesive is used for various processing molds (such as various plastic demolding molds, baking molds, papermaking and textile industries).
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the non-stick coating comprises the following raw materials in parts by weight:
40-50 parts of epoxy acrylate,
25-32 parts of polyacrylic acid fluorine-containing ester,
25-32 parts of poly (vinylidene fluoride-trifluoroethylene),
10-15 parts of polytetrafluoroethylene powder,
2.5-4 parts of a suspension dispersant, 1-1.4 parts of a flatting agent and 1.5-2 parts of a curing agent.
The non-stick coating is prepared by selecting raw materials, optimizing the content of each raw material, selecting epoxy acrylate, polyacrylic acid fluorine-containing ester, poly (vinylidene fluoride-trifluoroethylene), polytetrafluoroethylene powder, a suspension dispersant, a leveling agent and a curing agent in a proper proportion, not only fully playing the advantages of each raw material, but also complementing each other and promoting each other, wherein the static friction coefficient of the prepared non-stick coating is as low as 0.03, and the dynamic friction coefficient is as low as 0.015, so that the non-stick coating has excellent lubricating property and non-stick property, can completely meet the use requirements of various processing dies (such as various plastic demolding, baking dies, paper making and textile industries), can not use a demolding agent (can improve the production efficiency), and has excellent durability; in addition, the paint does not contain silicone oil, so that the product is prevented from being polluted; the adhesive force with the base material is large, the loading capacity is large, the impact resistance is good, the flexibility is good, the comprehensive performance is good, and the service life is long when the adhesive is used for various processing molds (such as various plastic demolding molds, baking molds, papermaking and textile industries).
Preferably, the non-stick coating comprises the following raw materials in parts by weight:
45 parts of epoxy acrylate,
27.5 parts of polyacrylic acid fluorine-containing ester,
28.5 parts of poly (vinylidene fluoride-trifluoroethylene),
13 parts of polytetrafluoroethylene powder,
3.4 parts of suspension dispersant, 1.2 parts of flatting agent and 1.7 parts of curing agent.
Preferably, the suspension dispersant is a copolymer of vinylpyrrolidone and vinylimidazole.
Preferably, the leveling agent is a leveling agent AC-3777.
Preferably, the curing agent is a mixture of CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole.
Preferably, the mass ratio of the CF-6501 epoxy curing agent to the dicyanodiamide to the dimethyl imidazole in the mixture of the CF-6501 epoxy curing agent to the dicyanodiamide to the dimethyl imidazole is 1: (0.7-0.8): (0.02-0.04).
Preferably, the particle size of the polytetrafluoroethylene powder is less than or equal to 4 um.
Preferably, the non-stick coating further comprises the following raw materials in parts by weight: 25-45 parts of a solvent.
Preferably, the solvent is at least one of an alcohol solvent, a ketone solvent, an ester solvent and an ether solvent.
The invention also provides a coating process of the non-stick coating, which comprises the following steps:
1) weighing the raw materials of the non-sticky coating according to the weight parts for later use;
2) mixing the raw materials of the non-sticky coating with good lubricating property, and uniformly mixing the raw materials by adopting high-speed dispersion;
3) and (3) coating the coating obtained in the step 2) on the surface of a base material in a spraying manner, wherein the spraying thickness is 50-150 mu m, curing is carried out for more than 4h at the temperature of 50-58 ℃ after spraying, and then curing is carried out for more than 12h at normal temperature, so as to obtain the non-stick coating with good lubricating property.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the non-stick coating is prepared by selecting raw materials, optimizing the content of each raw material, selecting epoxy acrylate, polyacrylic acid fluorine-containing ester, poly (vinylidene fluoride-trifluoroethylene), polytetrafluoroethylene powder, a suspension dispersant, a leveling agent and a curing agent in a proper proportion, not only fully playing the advantages of each raw material, but also complementing each other and promoting each other, wherein the static friction coefficient of the prepared non-stick coating is as low as 0.03, and the dynamic friction coefficient is as low as 0.015, so that the non-stick coating has excellent lubricating property and non-stick property, can completely meet the use requirements of various processing dies (such as various plastic demolding, baking dies, paper making and textile industries), can not use a demolding agent (can improve the production efficiency), and has excellent durability; in addition, the paint does not contain silicone oil, so that the product is prevented from being polluted; the adhesive force with the base material is large, the loading capacity is large, the impact resistance is good, the flexibility is good, the comprehensive performance is good, and the service life is long when the adhesive is used for various processing molds (such as various plastic demolding molds, baking molds, papermaking and textile industries).
The raw materials of the non-stick coating are added with epoxy acrylate as a main matrix material;
the raw materials of the non-sticky coating are added with the polyacrylic acid fluorine-containing ester, so that the compatibility of the raw materials of the non-sticky coating is good, the raw materials are matched with other components, a good synergistic effect is achieved, the lubricating property and the non-sticky property of the non-sticky coating are improved, and the dispersion compatibility with polytetrafluoroethylene powder and the like can be increased;
the raw materials of the non-stick coating are added with the poly (vinylidene fluoride-trifluoroethylene), so that the compatibility of the raw materials of the non-stick coating is good, the raw materials are matched with other components to play a good synergistic effect, the lubricating property and the non-stick property of the non-stick coating are greatly improved, and the dispersion compatibility with polytetrafluoroethylene powder and the like can be increased;
the raw material of the non-stick coating of the present invention is added with polytetrafluoroethylene powder, preferably, the particle size of the polytetrafluoroethylene powder is not more than 4 um. Under the combined action of the copolymer of vinyl pyrrolidone and vinyl imidazole and the like, the polytetrafluoroethylene powder is uniformly dispersed in a raw material system of the non-stick coating, is matched with other components (mainly epoxy acrylate, polyacrylic acid fluorine-containing ester, poly (vinylidene fluoride-trifluoroethylene)), plays a good synergistic effect, greatly improves the lubricating property of the non-stick coating, ensures that the non-stick coating has excellent non-stick property, can completely meet the use requirements of various processing molds (such as various demolding plastics, baking molds, papermaking and textile industries), can not use a demolding agent (can improve the production efficiency), and has excellent durability;
the raw material of the non-stick coating of the present invention is added with a suspension dispersant, preferably, the suspension dispersant is a copolymer of vinyl pyrrolidone and vinyl imidazole. The polytetrafluoroethylene powder and the like in the raw material system of the non-sticky coating can be well and uniformly dispersed; thereby ensuring the performance of the coating;
the raw materials of the non-sticky coating are added with the leveling agent, and preferably, the leveling agent is the leveling agent AC-3777. (more suitable for the raw material system of the non-stick coating of the present invention). The raw materials of the non-sticky coating can form a more uniform coating after being sprayed, and the surface of the coating is ensured to be flat and smooth.
The raw materials of the non-stick coating are added with a curing agent, preferably, the curing agent is a mixture of CF-6501 epoxy curing agent, dicyanodiamide and dimethyl imidazole. Preferably, the mass ratio of the CF-6501 epoxy curing agent to the dicyanodiamide to the dimethyl imidazole in the mixture of the CF-6501 epoxy curing agent to the dicyanodiamide to the dimethyl imidazole is 1: (0.7-0.8): (0.02-0.04). Wherein, CF-6501 epoxy hardener, dicyanodiamide are regarded as the compound curing agent, dimethyl imidazole is regarded as the solidification accelerator, can make the raw materials of the non-stick coating of the invention spray the homogeneous solidification fast after spraying, form more homogeneous coating, guarantee the surface of coating is smooth, and comprehensive properties such as non-stick, adhesion, load-carrying capacity, etc..
The coating process of the invention has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
the non-stick coating comprises the following raw materials in parts by weight:
40-50 parts of epoxy acrylate,
25-32 parts of polyacrylic acid fluorine-containing ester,
25-32 parts of poly (vinylidene fluoride-trifluoroethylene),
10-15 parts of polytetrafluoroethylene powder,
2.5-4 parts of a suspension dispersant, 1-1.4 parts of a flatting agent and 1.5-2 parts of a curing agent.
Preferably, the non-stick coating comprises the following raw materials in parts by weight:
45 parts of epoxy acrylate,
27.5 parts of polyacrylic acid fluorine-containing ester,
28.5 parts of poly (vinylidene fluoride-trifluoroethylene),
13 parts of polytetrafluoroethylene powder,
3.4 parts of suspension dispersant, 1.2 parts of flatting agent and 1.7 parts of curing agent.
Preferably, the suspension dispersant is a copolymer of vinylpyrrolidone and vinylimidazole.
Preferably, the leveling agent is a leveling agent AC-3777.
Preferably, the curing agent is a mixture of CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole.
Preferably, the mass ratio of the CF-6501 epoxy curing agent to the dicyanodiamide to the dimethyl imidazole in the mixture of the CF-6501 epoxy curing agent to the dicyanodiamide to the dimethyl imidazole is 1: (0.7-0.8): (0.02-0.04).
Preferably, the particle size of the polytetrafluoroethylene powder is less than or equal to 4 um.
Preferably, the non-stick coating further comprises the following raw materials in parts by weight: 25-45 parts of a solvent.
Preferably, the solvent is at least one of an alcohol solvent, a ketone solvent, an ester solvent and an ether solvent.
The invention also provides a coating process of the non-stick coating, which comprises the following steps:
1) weighing the raw materials of the non-sticky coating according to the weight parts for later use;
2) mixing the raw materials of the non-sticky coating with good lubricating property, and uniformly mixing the raw materials by adopting high-speed dispersion;
3) and (3) coating the coating obtained in the step 2) on the surface of a base material in a spraying manner, wherein the spraying thickness is 50-150 mu m, curing is carried out for more than 4h at the temperature of 50-58 ℃ after spraying, and then curing is carried out for more than 12h at normal temperature, so as to obtain the non-stick coating with good lubricating property.
Example 2:
the non-stick coating comprises the following raw materials in parts by weight:
40 parts of epoxy acrylate,
25 portions of polyacrylic acid fluorine-containing ester,
25 parts of poly (vinylidene fluoride-trifluoroethylene),
10 portions of polytetrafluoroethylene powder,
2.5 parts of suspension dispersant, 1 part of flatting agent and 1.5 parts of curing agent.
In this example, the suspension dispersant is a copolymer of vinylpyrrolidone and vinylimidazole.
In the embodiment, the leveling agent is leveling agent AC-3777.
In this example, the curing agent is a mixture of CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole.
In this embodiment, the mass ratio of the CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole in the mixture of the CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole is 1: 0.7: 0.02.
in this embodiment, the particle size of the polytetrafluoroethylene powder is 4um or less.
In this embodiment, the non-stick coating further comprises the following raw materials in parts by weight: and 25 parts of a solvent.
In this embodiment, the solvent is a mixture of 1: 7 of 1-vinyl-2-pyrrolidone and butyl acetate.
In this embodiment, the coating process of the non-stick coating includes the following steps:
1) weighing the raw materials of the non-sticky coating according to the weight parts for later use;
2) mixing the raw materials of the non-sticky coating with good lubricating property, and uniformly mixing the raw materials by adopting high-speed dispersion;
3) and (3) coating the coating obtained in the step 2) on the surface of a base material in a spraying manner, wherein the spraying thickness is 120 microns, the coating is cured for more than 4 hours at the temperature of 50 ℃ after spraying, and then the coating is cured for more than 12 hours at normal temperature, so that the non-stick coating with good lubricating property is obtained.
Example 3:
the non-stick coating comprises the following raw materials in parts by weight:
50 parts of epoxy acrylate,
32 parts of polyacrylic acid fluorine-containing ester,
32 parts of poly (vinylidene fluoride-trifluoroethylene),
15 portions of polytetrafluoroethylene powder,
4 parts of suspension dispersant, 1.4 parts of flatting agent and 2 parts of curing agent.
In this example, the suspension dispersant is a copolymer of vinylpyrrolidone and vinylimidazole.
In the embodiment, the leveling agent is leveling agent AC-3777.
In this example, the curing agent is a mixture of CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole.
In this embodiment, the mass ratio of the CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole in the mixture of the CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole is 1: 0.8: 0.04.
in this embodiment, the particle size of the polytetrafluoroethylene powder is 4um or less.
In this embodiment, the non-stick coating further comprises the following raw materials in parts by weight: 45 parts of a solvent.
In this embodiment, the solvent is a mixture of 1: 7 of 1-vinyl-2-pyrrolidone and butyl acetate.
In this embodiment, the coating process of the non-stick coating includes the following steps:
1) weighing the raw materials of the non-sticky coating according to the weight parts for later use;
2) mixing the raw materials of the non-sticky coating with good lubricating property, and uniformly mixing the raw materials by adopting high-speed dispersion;
3) and (3) coating the coating obtained in the step 2) on the surface of a base material in a spraying manner, wherein the spraying thickness is 120 microns, the coating is cured for more than 4 hours at the temperature of 58 ℃ after spraying, and then the coating is cured for more than 12 hours at normal temperature, so that the non-stick coating with good lubricating property is obtained.
Example 4:
the non-stick coating comprises the following raw materials in parts by weight:
45 parts of epoxy acrylate,
27.5 parts of polyacrylic acid fluorine-containing ester,
28.5 parts of poly (vinylidene fluoride-trifluoroethylene),
13 parts of polytetrafluoroethylene powder,
3.4 parts of suspension dispersant, 1.2 parts of flatting agent and 1.7 parts of curing agent.
In this example, the suspension dispersant is a copolymer of vinylpyrrolidone and vinylimidazole.
In the embodiment, the leveling agent is leveling agent AC-3777.
In this example, the curing agent is a mixture of CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole.
In this embodiment, the mass ratio of the CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole in the mixture of the CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole is 1: 0.75: 0.03.
in this embodiment, the particle size of the polytetrafluoroethylene powder is 4um or less.
In this embodiment, the non-stick coating further comprises the following raw materials in parts by weight: 35 parts of a solvent.
In this embodiment, the solvent is a mixture of 1: 7 of 1-vinyl-2-pyrrolidone and butyl acetate.
In this embodiment, the coating process of the non-stick coating includes the following steps:
1) weighing the raw materials of the non-sticky coating according to the weight parts for later use;
2) mixing the raw materials of the non-sticky coating with good lubricating property, and uniformly mixing the raw materials by adopting high-speed dispersion;
3) and (3) coating the coating obtained in the step 2) on the surface of a base material in a spraying manner, wherein the spraying thickness is 120 microns, curing is carried out for more than 4 hours at the temperature of 50-58 ℃ after spraying, and then curing is carried out for more than 12 hours at normal temperature, so as to obtain the non-stick coating with good lubricating property.
The following tests were conducted on the non-stick coatings obtained in examples 2 to 4 of the present invention and the ordinary coatings (same thickness as in example 4 and same coating process as in example 4), and the test results are shown in table 1:
TABLE 1
As can be seen from the above table, the non-stick coating of the invention has a static friction coefficient as low as 0.03, a dynamic friction coefficient as low as 0.015, excellent lubricating property and non-stick property, can completely meet the use requirements of various processing molds (such as various plastic demolding, baking molds, paper making and textile industries), can not use a mold release agent (can improve the production efficiency), and has excellent durability; the adhesive force with the base material is large, and the loading capacity is large; the impact resistance and the flexibility are good; has good comprehensive performance and long service life when being used for various processing moulds (such as various plastic demoulding, baking moulds, paper making and textile industries).
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The non-stick coating is characterized by comprising the following raw materials in parts by weight:
40-50 parts of epoxy acrylate,
25-32 parts of polyacrylic acid fluorine-containing ester,
25-32 parts of poly (vinylidene fluoride-trifluoroethylene),
10-15 parts of polytetrafluoroethylene powder,
2.5-4 parts of a suspension dispersant, 1-1.4 parts of a flatting agent and 1.5-2 parts of a curing agent.
2. The non-stick coating of claim 1, wherein the non-stick coating comprises the following raw materials in parts by weight:
45 parts of epoxy acrylate,
27.5 parts of polyacrylic acid fluorine-containing ester,
28.5 parts of poly (vinylidene fluoride-trifluoroethylene),
13 parts of polytetrafluoroethylene powder,
3.4 parts of suspension dispersant, 1.2 parts of flatting agent and 1.7 parts of curing agent.
3. The non-tacky coating of claim 1 wherein the suspending dispersant is a copolymer of vinyl pyrrolidone and vinyl imidazole.
4. The non-stick coating of claim 1 wherein the leveling agent is leveling agent AC-3777.
5. The non-stick coating of claim 1, wherein the curing agent is a mixture of CF-6501 epoxy curing agent, dicyanodiamide and dimethylimidazole.
6. The non-tacky coating of claim 5 wherein the mixture of CF-6501 epoxy hardener, dicyanodiamide and dimethylimidazole has a mass ratio of CF-6501 epoxy hardener, dicyanodiamide and dimethylimidazole of 1: (0.7-0.8): (0.02-0.04).
7. The non-stick coating of claim 1, wherein the polytetrafluoroethylene powder has a particle size of 4um or less.
8. The non-stick coating of claim 1, further comprising the following raw materials in parts by weight: 25-45 parts of a solvent.
9. The non-stick coating of claim 8, wherein the solvent is at least one of an alcohol solvent, a ketone solvent, an ester solvent, and an ether solvent.
10. A process for coating a non-stick coating according to any of claims 1 to 9, comprising the following steps:
1) weighing the raw materials of the non-sticky coating according to the weight parts for later use;
2) mixing the raw materials of the non-sticky coating with good lubricating property, and uniformly mixing the raw materials by adopting high-speed dispersion;
3) and (3) coating the coating obtained in the step 2) on the surface of a base material in a spraying manner, wherein the spraying thickness is 50-150 mu m, curing is carried out for more than 4h at the temperature of 50-58 ℃ after spraying, and then curing is carried out for more than 12h at normal temperature, so as to obtain the non-stick coating with good lubricating property.
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| CN202010045116.2A CN111171682A (en) | 2020-01-16 | 2020-01-16 | Non-sticky coating and coating process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521809A (en) * | 2020-11-28 | 2021-03-19 | 无锡市科宇橡胶模具厂 | Rubber mold coating and using method thereof |
| CN112961546A (en) * | 2021-03-04 | 2021-06-15 | 宁波市金象厨具有限公司 | Composite coating for non-stick pan and preparation method thereof |
| CN113337176A (en) * | 2021-05-14 | 2021-09-03 | 宁波格莱美厨具有限公司 | Non-stick pan coating based on interpenetrating network structure and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5765765A (en) * | 1980-10-08 | 1982-04-21 | Nippon Steel Chem Co Ltd | Paint composition for electrostatic coating |
| US5130201A (en) * | 1987-06-09 | 1992-07-14 | Daikin Industries, Ltd. | Vinylidene fluoride resin composition |
| US20090012235A1 (en) * | 2006-02-03 | 2009-01-08 | Basf Corporation | Dispersant for use in a fluorocarbon coating composition |
| CN101591497A (en) * | 2009-05-25 | 2009-12-02 | 河北工业大学 | A kind of epoxy coating and preparation thereof and using method |
-
2020
- 2020-01-16 CN CN202010045116.2A patent/CN111171682A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5765765A (en) * | 1980-10-08 | 1982-04-21 | Nippon Steel Chem Co Ltd | Paint composition for electrostatic coating |
| US5130201A (en) * | 1987-06-09 | 1992-07-14 | Daikin Industries, Ltd. | Vinylidene fluoride resin composition |
| US20090012235A1 (en) * | 2006-02-03 | 2009-01-08 | Basf Corporation | Dispersant for use in a fluorocarbon coating composition |
| CN101591497A (en) * | 2009-05-25 | 2009-12-02 | 河北工业大学 | A kind of epoxy coating and preparation thereof and using method |
Non-Patent Citations (2)
| Title |
|---|
| 余自力等: "丙烯酸2,2,3,3-四氟丙酯的合成", 《化学研究与应用》 * |
| 朱万强: "《涂料基础教程》", 30 June 2012, 西南交通大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521809A (en) * | 2020-11-28 | 2021-03-19 | 无锡市科宇橡胶模具厂 | Rubber mold coating and using method thereof |
| CN112961546A (en) * | 2021-03-04 | 2021-06-15 | 宁波市金象厨具有限公司 | Composite coating for non-stick pan and preparation method thereof |
| CN113337176A (en) * | 2021-05-14 | 2021-09-03 | 宁波格莱美厨具有限公司 | Non-stick pan coating based on interpenetrating network structure and preparation method thereof |
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