CN107652871B - Metal template coating, preparation method thereof and coating production line of metal template - Google Patents
Metal template coating, preparation method thereof and coating production line of metal template Download PDFInfo
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- CN107652871B CN107652871B CN201710822703.6A CN201710822703A CN107652871B CN 107652871 B CN107652871 B CN 107652871B CN 201710822703 A CN201710822703 A CN 201710822703A CN 107652871 B CN107652871 B CN 107652871B
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
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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
- C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1675—Polyorganosiloxane-containing compositions
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- Paints Or Removers (AREA)
Abstract
The invention discloses a metal template coating, which comprises the following components in percentage by weight: 70-90% of main resin, 3-10% of diluent, 3-10% of pigment filler, 1-5% of auxiliary agent and 1-5% of photosensitizer; the main resin is selected from one or more of aliphatic polyurethane acrylate, acrylate or aromatic acid methacrylic acid half ester; the diluent is selected from one or more of isoborneol acrylate, 1, 6-hexanediol diacrylate or tripropylene glycol diacrylate; the pigment and filler comprises 20-30% of zinc stearate, 20-30% of bentonite, 20-30% of calcium carbonate and 20-30% of talcum powder; the auxiliary agent is selected from one or more of polysiloxane, unsaturated polyamide and hydroxy acid salt or propylene glycol methyl ether; the photosensitizer is selected from one or more of 1-hydroxycyclohexyl phenyl ketone, 2-isopropyl thioxanthone or 2-benzyl-2-dimethylamino-1- (4-morpholinyl phenyl) butanone. The method of the invention does not need curing agent, ultraviolet curing, and instant drying within 10 seconds; the binding force with the aluminum alloy template is strong, and the aluminum alloy template is not easy to fall off.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to a coating for a metal template, a preparation method, a coating method and a coating production line thereof.
Background
The development of the metal template turns a revolution of energy conservation and emission reduction of the building template. The advantages of the metal template for the current building are as follows: 1. the construction period is short: the aluminum alloy building template system is a quick-release template system, one template can be normally constructed for one layer in four or five days, and the management cost of a construction unit is greatly saved; 2. the repeated use times are many, the average use cost is low: the aluminum alloy building metal template system adopts an aluminum alloy section bar formed by integral extrusion as a raw material (6063-T6 or 6061-T6), a set of templates can be used for over 500 times in a turnover way under the standard construction, and the average use cost is low; 3. construction convenience, efficient: the aluminum alloy building template system is simple and convenient to assemble, has the average weight of 35KG/m, is completely assembled manually, and does not need any mechanical equipment for assistance; 4. good stability and high bearing capacity: all parts of the aluminum alloy building template system are assembled by aluminum alloy plates, and an integral frame is formed after the system is assembled, so that the stability is very good; the bearing capacity can reach 60KN per square meter; 5. the application range is wide: the aluminum alloy building template is suitable for walls, horizontal floor slabs, pillars, beams, stairs, windowsills, floating plates and other positions; 6. and (3) concrete surface effect after stripping: after the aluminum alloy building template is demolded, the surface quality of the concrete is smooth and clean, the requirements of a veneer and fair-faced concrete can be basically met, the plastering is not needed, and the plastering cost can be saved. Therefore, the building block is widely applied to the field of construction. However, in practical applications, the long-term contact between the metal formwork and the concrete can cause corrosion on the surface of the metal formwork, which can affect the recycling of the metal formwork. In recent years, a release agent is often coated on the surface of the metal template in the using process, but the use of the coating agent increases the production cost and the environmental cost.
Therefore, in view of the above problems, the present invention provides a novel coating material for a metal template and a method for preparing the same.
Disclosure of Invention
The invention aims to provide a coating of a metal template, a preparation method, a coating method and a coating production line thereof, which aim to solve the problem of corrosion of acid-base salts in concrete to the metal template in the prior art.
The purpose of the invention is realized by the following technical scheme: in a first aspect of the present invention, the present invention provides a metal template coating, which comprises the following components by weight:
the main resin is selected from one or more of aliphatic polyurethane acrylate, acrylate or aromatic acid methacrylic acid half ester.
Further, the diluent is selected from one or more of isoborneol acrylate, 1, 6-hexanediol diacrylate or tripropylene glycol diacrylate; the pigment and filler comprises 20-30% of zinc stearate, 20-30% of bentonite, 20-30% of calcium carbonate and 20-30% of talcum powder; the auxiliary agent is selected from one or more of polysiloxane, unsaturated polyamide and hydroxy acid salt or propylene glycol methyl ether; the photosensitizer is selected from one or more of 1-hydroxycyclohexyl phenyl ketone, 2-isopropyl thioxanthone or 2-benzyl-2-dimethylamino-1- (4-morpholinyl phenyl) butanone.
Further, the metal template coating comprises the following components in percentage by weight:
further, the metal template coating comprises the following components in percentage by weight:
in a second aspect of the present invention, the present invention provides a method for preparing the metal template paint, which comprises the steps of:
weighing the raw materials according to the mass percentage, putting the raw materials into a reaction kettle according to the sequence of the main resin, the diluent, the pigment filler, the auxiliary agent and the photosensitizer, and dispersing for 30-50min at the rotating speed of 400-600 r/min; then dispersing for 60-70min at the rotation speed of 900-; and after the dispersion is finished, filtering by using a filter screen, and waiting for loading. Wherein the metal stencil coating is a metal stencil coating according to the first aspect of the invention.
Further, the temperature in the reaction kettle is 70-80 ℃.
In a third aspect of the present invention, the present invention provides the coating line for the metal formwork, comprising: the roller coating machine is used for coating the metal template coating on the surface of the metal template to form a coating; the leveling machine is used for ultrasonically leveling the coating; and the curing machine is used for ultraviolet curing the coating. Wherein the metal stencil coating is a metal stencil coating according to the first aspect of the invention.
Further, the coating production line of the metal template further comprises a surface polisher and a surface cleaner, and the surface polisher and the surface cleaner are used for polishing and cleaning the surface of the metal template; and the receiving roller is used for receiving the metal template coated with the coating.
Further, the coating production line of the metal template further comprises a working machine table, a conveying device for transferring the metal template is laid on the working machine table, and the roller coating machine, the leveling machine and the curing machine are sequentially installed on the conveying device.
Further, the roller coating machine is a double-roller coating machine.
Compared with the prior art, the invention has the following advantages:
1. the coating disclosed by the invention adopts a single component, is a colorless transparent liquid, is environment-friendly and non-toxic, does not have side effects, and does not contain volatile matters such as solvents and the like;
2. curing agent is not needed, ultraviolet curing is carried out, and instant drying is carried out within 10 seconds;
3. because no volatile substance is contained, the curing film forming rate is 100 percent, and capillary pores formed after the surface of the coating is not volatilized, the coating is compact, smooth, friction-resistant and scratch-resistant;
4. the binding force with the aluminum alloy template is strong, and the aluminum alloy template is not easy to fall off;
5. the paint is an active organic silicon-containing material, is corrosion-resistant and not easy to pollute, is clean in demoulding and convenient to repair and recoat.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a coating line for a metal formwork according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments and the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention discloses a coating for a metal template, which comprises the following components in percentage by weight: 70-90% of main resin, 3-10% of diluent, 3-10% of pigment filler, 1-5% of auxiliary agent and 1-5% of photosensitizer; preferably, the components comprise the following components in percentage by weight: 75-85% of main resin, 6-9% of diluent, 6-9% of pigment filler, 1.5-4.5% of auxiliary agent and 1.5-4.5% of photosensitizer; more preferably, the components comprise by weight percent: 80% of main resin, 8% of diluent, 7% of pigment and filler, 3% of auxiliary agent and 2% of photosensitizer; the main resin is selected from one or more of aliphatic polyurethane acrylate, acrylate or aromatic acid methacrylic acid half ester; the diluent is selected from one or more of isoborneol acrylate, 1, 6-hexanediol diacrylate or tripropylene glycol diacrylate; the pigment and filler comprises 20-30% of zinc stearate, 20-30% of bentonite, 20-30% of calcium carbonate and 20-30% of talcum powder; the auxiliary agent is selected from one or more of polysiloxane, unsaturated polyamide and hydroxy acid salt or propylene glycol methyl ether; the photosensitizer is selected from one or more of 1-hydroxycyclohexyl phenyl ketone, 2-isopropyl thioxanthone or 2-benzyl-2-dimethylamino-1- (4-morpholinyl phenyl) butanone.
The mechanism of action of the various components used in the present invention is explained in detail below:
the polyurethane acrylate (PUA) contains acrylic acid functional groups and urethane bonds in molecules, and has high wear resistance, adhesion, flexibility, high peel strength and excellent low-temperature resistance of polyurethane after being cured, and optical performance and weather resistance of the polyacrylate, so that the polyurethane acrylate (PUA) is a radiation curing material with excellent comprehensive performance.
Acrylate is a generic name for esters of acrylic acid and its homologues, can be polymerized by self or copolymerized with other monomers, and is a monomer for manufacturing adhesives, synthetic resins, special rubbers and plastics. The acrylic esters of relatively great importance are methyl acrylate, ethyl acrylate, methyl 2-methacrylate, ethyl 2-methacrylate and the like.
The aromatic acid methacrylic acid half ester has good curing speed, good solvent resistance and acid resistance, high gloss and strong adhesive force.
The host resin is the host of the light-cured product, and its properties substantially determine the main properties of the cured material.
Isoborneol acrylate, molecular formula: C13H20O2, molecular weight: 208.2967. the material is mainly used as a diluent monomer for a cured resin, and is an excellent diluent for a prepolymer. Due to its characteristic bicycloalkyl structure, the polymer produced by free radical polymerization has a high glass transition temperature.
1, 6-hexanediol diacrylate with CAS number of 13048-33-4 and molecular formula of C12H16O4 is widely used in plastics, adhesives, textiles, rubber, modified copolymers and the like, and is a chemical intermediate.
Tripropylene glycol diacrylate is a common acrylic acid derivative monomer, is used as a cross-linking agent in light curing or radiation curing, can reduce the radiation dose, and can obviously reduce the viscosity of a resin system when being used as a reactive diluent.
The diluent not only dissolves and dilutes the main resin and adjusts the viscosity of the system, but also participates in the photocuring process, and influences the photocuring rate of the photocured product and the performance of a cured film.
The zinc stearate is white light fine powder, has a molecular formula of ZN (C17H35COO)2 and a molecular structure of RCOOZnOOCR (R is mixed alkyl in industrial stearic acid), is combustible, has a specific gravity of 1.095, an spontaneous combustion point of 900 ℃, a density of 1.095 and a melting point of 130 ℃, and has a greasy feeling; it is insoluble in water, ethanol, and diethyl ether, and soluble in organic solvent such as hot ethanol, oleum Terebinthinae, benzene, etc. and acid. Zinc stearate is heated and dissolved in organic solvent, and then becomes jelly when cooled, and is decomposed into stearic acid and corresponding zinc salt when meeting strong acid. Has the characteristics of lubricity, hygroscopicity, no toxicity, slight irritation, no pollution and no danger. Zinc stearate is insoluble in polar solvents, but is highly soluble in chlorinated hydrocarbons, which are aromatic compounds, when heated. Their main fields of application are the plastics and rubber industries, which, owing to their very good compatibility, are used as mold release agents and lubricants.
The main mineral component of bentonite is montmorillonite with content of 85-90%, and some properties of bentonite are determined by montmorillonite. Montmorillonite can be in various colors such as yellow-green, yellow-white, gray, white, and the like. Can be in compact block shape or loose soil shape, has smooth feeling when rubbed with fingers, expands several times to 20-30 times after adding water into small block, and is in suspension state in water and pasty state when water is little.
The calcium carbonate is used as the filler of the rubber, so that the rubber has bright color, high elongation, high tensile strength and good wear resistance. It is also used as filler in the industries of artificial leather, electric wire, polyvinyl chloride, coating, printing ink, paper making and the like. When the foaming agent is used for producing the microporous rubber, the foaming agent can be uniformly foamed.
Talc powder has excellent physical and chemical properties such as lubricity, anti-sticking property, flow aid, fire resistance, acid resistance, insulation property, high melting point, chemical inertness, good covering power, softness, good gloss, strong adsorption force and the like, and has a tendency to easily break into flakes and a special lubricity because the crystal structure of talc powder is layered, and if the content of Fe2O3 is high, the insulation property thereof is deteriorated.
The pigment and the filler have good chemical stability, can increase the thickness of the coating and improve the wear resistance and the durability of the coating.
Polyorganosiloxanes (abbreviated as polysiloxanes) are a class of polymers having repeating Si-O bonds as the main chain and organic groups directly attached to the silicon atom, and their commercial products include: silicone oil, silicone rings, silicone rubber, silicone resin, and the like. The polysiloxane backbone structure is a Si-O-Si structure, essentially the same as quartz, except that it has pendant organic groups attached.
Propylene glycol methyl ether has weak ether smell but no strong pungent smell, so that the application of the propylene glycol methyl ether is wider and safer. Because the molecular structure of the polyether has ether group and hydroxyl group, the polyether has excellent solubility, proper volatilization rate, reaction activity and other characteristics, and thus has wide application.
The additive is used for improving the performance of the coating and has the functions of defoaming, leveling, dispersing, polymerization inhibition and the like.
1-hydroxycyclohexyl phenyl ketone, photoinitiator 184, molecular formula C25H30O3, molecular weight 378.5039, CAS registry number 947-19-3, one of the common catalysts and auxiliaries.
2-isopropyl thioxanthone is used as a photoinitiator of the ultraviolet curing coating. The chemical formula is C16H14 OS.
2-benzyl-2-dimethylamino-1- (4-morpholinylphenyl) butanone and a photoinitiator 369 are light yellow powder crystals, and the molecular formula of the light yellow powder crystals is C23H30N2O 2.
The photosensitizer plays a decisive role in the photocuring rate of the photocured product, can absorb radiation energy, and generates chemical change through excitation to generate a substance of a reactive intermediate with the polymerization initiating capability.
Examples
The embodiment of the invention adopts the following raw materials:
manufacturer model | |
Aliphatic urethane acrylate | Sadoma Guangzhou chemical Co., Ltd, LM302 |
Pure acrylic esters | Changxing materials industries Ltd 6151 |
Aromatic acid methacrylic acid half ester | Shadoma Guangzhou chemical Co Ltd |
Isoborneol acrylic ester | IBOA of Xingsheng chemical industry Co., Ltd |
1, 6-hexanediol diacrylate | Hdd in Shanghai Zi reagent factory |
Tripropylene glycol diacrylate | Shanghai Zi-reagent factory TPGDA |
Zinc stearate | Macro and Yuan chemical industries, Ltd |
Bentonite clay | Shanghai Yangjiang chemical Co Ltd |
Calcium carbonate | Shanghai Yangjiang chemical Co Ltd |
Talcum powder | Shanghai Yangjiang chemical Co Ltd |
Polysiloxanes | Changxing materials industries Ltd 63148-62-9 |
Propylene glycol methyl ether | Shadoma Guangzhou chemical Co., Ltd 107-98-2 |
1-hydroxycyclohexyl phenyl methanones | 947-19-3, Shadoma Guangzhou chemical Co., Ltd |
2-isopropyl thioxanthones | CB3702402 Bayer pharmaceutical and health products Ltd |
2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone | Sadoma Guangzhou Chemicals Inc. 119313-12-1 |
Example 1
Sequentially putting 80% of aliphatic polyurethane acrylate, 8% of isoborneol acrylate, 7% of pigment filler (comprising 25% of zinc stearate, 25% of bentonite, 25% of calcium carbonate and 25% of talcum powder), 3% of polysiloxane and 2% of 2-isopropyl thioxanthone in a reaction kettle in sequence, and dispersing at the rotating speed of 400r/min for 35 min; then dispersing for 60min at the rotating speed of 950 r/min; and after the dispersion is finished, filtering by using a 120-mesh filter screen, and waiting for packaging.
Example 2
Sequentially putting 70 percent of acrylic ester, 10 percent of 1, 6-hexanediol diacrylate, 10 percent of pigment filler (comprising 25 percent of zinc stearate, 25 percent of bentonite, 25 percent of calcium carbonate and 25 percent of talcum powder), 5 percent of unsaturated polyamide, hydroxy acid salt and 5 percent of 1-hydroxycyclohexyl phenyl ketone into a reaction kettle according to the mass percentage, and dispersing for 40min at the rotating speed of 500 r/min; then dispersing for 65min at the rotating speed of 900 r/min; and after the dispersion is finished, filtering by using a 120-mesh filter screen, and waiting for packaging.
Example 3
Sequentially putting 90% of aromatic acid methacrylic acid half ester, 3% of tripropylene glycol diacrylate, 3% of pigment filler (comprising 25% of zinc stearate, 25% of bentonite, 25% of calcium carbonate and 25% of talcum powder), 1% of propylene glycol methyl ether and 3% of 2-benzyl-2-dimethylamino-1- (4-morpholinyl phenyl) butanone into a reaction kettle in mass percentage, and dispersing for 45min at the rotating speed of 550 r/min; then dispersing for 68min at the rotating speed of 980 r/min; and after the dispersion is finished, filtering by using a 120-mesh filter screen, and waiting for packaging.
Example 4
Putting 75% of aliphatic polyurethane acrylate, 9% of tripropylene glycol diacrylate, 9% of pigment filler (comprising 25% of zinc stearate, 25% of bentonite, 25% of calcium carbonate and 25% of talcum powder), 4.5% of polysiloxane and 2.5% of 2-isopropyl thioxanthone in sequence into a reaction kettle, and dispersing for 48min at the rotating speed of 580 r/min; then dispersing for 60min at the rotating speed of 990 r/min; and after the dispersion is finished, filtering by using a 120-mesh filter screen, and waiting for packaging.
Example 5
Putting 85% of acrylate, 6% of isoborneol acrylate, 6% of pigment and filler, 1.5% of propylene glycol monomethyl ether and 1.5% of 1-hydroxycyclohexyl phenyl ketone into a reaction kettle in sequence, and dispersing for 50min at the rotating speed of 600 r/min; then dispersing for 60min at the rotating speed of 1000 r/min; and after the dispersion is finished, filtering by using a 120-mesh filter screen, and waiting for packaging.
And (3) detection results:
the detection items are as follows:
1. the detection of the adhesive force refers to GB/T5210-2006, and the qualification index is not less than 5 MPa;
2. the detection of the wear resistance refers to GB/T5237.5-2000, and the qualification index is more than or equal to 1.6L/mum;
3. the salt spray resistance test refers to GB/T1771-2007, and the qualified indexes are no bubbling and no rusting;
4. the surface drying time, the full drying time and the tensile strength are tested according to Q/SJGRP0001-2014 and GB/T16777-2008, and the qualified index of the surface drying time is less than or equal to 15 sec; the qualified index of the full drying time is less than or equal to 24 min; the qualified index of the tensile strength is more than or equal to 13 MPa;
5. and (3) freezing resistance test: testing 50 times at 20 ℃ to-20 ℃ with reference to Q/SJGRP0001-2014 and DBJ 01-54-2001;
6. heat resistance: maintaining at 80 deg.c for 72 hr; acid resistance: soaking in hydrochloric acid solution for 500 h; alkali resistance: saturated calcium hydroxide solution for 500 h. The inspection basis is as follows: Q/SJGRP0001-2014 and DBJ 01-54-2001.
The coating line of the metal formwork will be described in detail below.
Fig. 1 is a schematic structural view of a coating line of a metal stencil coating according to the present invention, and as shown in fig. 1, the coating line of a metal stencil according to the present invention includes a work table on which a conveyor for transferring a metal stencil is laid, and a roll coater 30, a leveling machine 40, and a curing machine 50 are sequentially installed on the conveyor. The conveying device comprises a plurality of conveying belts which are continuously arranged end to end, and the roller coating machine 30, the leveling machine 40 and the curing machine 50 are respectively arranged on one corresponding conveying belt. The conveying device is also sequentially provided with a surface grinding machine 10 and a surface cleaning machine 20 at the upstream of the roll coating machine, and the surface grinding machine 10 and the surface cleaning machine 20 are respectively arranged on a corresponding conveying belt; and a material receiving roller 60 is also arranged on the conveying device at the downstream of the curing machine, and the material receiving roller is arranged on one corresponding conveying belt. The curing machine 50 is provided with a light shield 51.
The working principle of the metal template coating production line is as follows:
the method comprises the steps of conveying a metal template to a surface grinding machine 10, grinding the surface of the metal template, conveying the ground metal template to a surface cleaning machine 20 through a conveying belt, cleaning residual abrasive dust on the surface of the metal template due to grinding, conveying the cleaned metal template to a roller coating machine 30, coating protective paint on the cleaned metal template, conveying the metal template coated with liquid paint to a leveling machine 40, so that the liquid paint on the metal template is smoother on one hand, the combination between a liquid pattern layer and the metal template is firmer on the other hand, conveying the metal template with the leveled liquid paint to a curing machine 50, curing the liquid paint on the metal template, and finally outputting the cured metal template from a material receiving roller 60 to obtain a metal template product.
The metal template coating production line disclosed by the invention is used for quickly coating in the metal template coating production line process, can be used immediately after being taken off line, and can be directly used in 8-10 times of primary use without additionally coating a release agent, so that the coating can achieve a mirror surface effect, and the integration of mold protection and release can be ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A coating line of metal formworks, characterized by comprising:
the roller coating machine is used for coating the metal template coating on the surface of the metal template to form a coating;
the leveling machine is used for ultrasonically leveling the coating;
a curing machine for UV curing the coating;
the surface polisher and the surface cleaner are used for polishing and cleaning the surface of the metal template;
the receiving roller is used for receiving the metal template coated with the coating;
the working machine platform is paved with a conveying device for transferring the metal template, and the roller coating machine, the leveling machine and the curing machine are sequentially arranged on the conveying device;
the metal template coating comprises the following components in percentage by weight:
the main resin is selected from one or more of aliphatic polyurethane acrylate or aromatic acid methacrylic acid half ester;
the diluent is selected from one or more of isoborneol acrylate, 1, 6-hexanediol diacrylate or tripropylene glycol diacrylate;
the pigment and filler comprises 20-30% of zinc stearate, 20-30% of bentonite, 20-30% of calcium carbonate and 20-30% of talcum powder;
the auxiliary agent is selected from one or more of polysiloxane, unsaturated polyamide and hydroxy acid salt or propylene glycol methyl ether;
the photosensitizer is selected from one or more of 1-hydroxycyclohexyl phenyl ketone and 2-benzyl-2-dimethylamino-1- (4-morpholinyl phenyl) butanone.
4. the coating line of metal formworks according to claim 1, wherein the roller coating machine is a two-roller coating machine.
5. A method for producing a stencil coating material in a coating line for producing a stencil as set forth in any one of claims 1 to 4, comprising the steps of:
weighing the raw materials according to the mass percentage, putting the raw materials into a reaction kettle according to the sequence of the main resin, the diluent, the pigment filler, the auxiliary agent and the photosensitizer, and dispersing for 30-50min at the rotating speed of 400-600 r/min;
then dispersing for 60-70min at the rotation speed of 900-;
and after the dispersion is finished, filtering by using a filter screen, and waiting for loading.
6. The method of claim 5, wherein the temperature in the reaction kettle is between 70 ℃ and 80 ℃.
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CN110773375B (en) * | 2019-10-16 | 2021-02-02 | 浙江圣奥家具制造有限公司 | Furniture board finish coating production line and process |
CN112574665A (en) * | 2020-12-01 | 2021-03-30 | 浙江优涂新材料科技有限公司 | Environment-friendly energy-saving easy-to-polish LED photocuring woodware roller coating primer |
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