CN114181574A - Wear-resistant coating, preparation method thereof and decorative film - Google Patents

Wear-resistant coating, preparation method thereof and decorative film Download PDF

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Publication number
CN114181574A
CN114181574A CN202111600597.XA CN202111600597A CN114181574A CN 114181574 A CN114181574 A CN 114181574A CN 202111600597 A CN202111600597 A CN 202111600597A CN 114181574 A CN114181574 A CN 114181574A
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parts
wear
layer
resistant coating
coating
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邹李华
杨志方
申政
杨名浩
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Shanghai Huagong Aimar New Material Co ltd
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Shanghai Huagong Aimar New Material 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
    • C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • 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
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009—Sulfides

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The embodiment of the application provides a wear-resistant coating, a preparation method thereof and a decorative film, and relates to the technical field of decorative film production. The wear-resistant coating in the embodiment comprises the following components in parts by weight: 35-40 parts of a resin matrix; 50-55 parts of a dispersion liquid; 10-15 parts of microcapsule lubricating particles; the resin matrix is at least one of acrylic resin or organic silicon resin, the microcapsule lubricating particles are solid lubricating particles coated with cellulose on the surface, and the solid lubricating particles are WS2Or MoS2At least one of (1). The components in the wear-resistant coating are matched with each other and have a synergistic effect, so that the wear-resistant coating has good wear resistance and weather resistance; the decorative film made of the wear-resistant coating has good wear resistance and weather resistance, and the surface friction coefficient is small.

Description

Wear-resistant coating, preparation method thereof and decorative film
Technical Field
The application relates to the technical field of decorative film production, in particular to a wear-resistant coating, a preparation method thereof and a decorative film.
Background
When the decorative film is prepared, the plastic resin and the decorative film are integrally formed by using an In Molding Roller (IMR) technology, and compared with the traditional technologies such as screen printing, spraying and electroplating, the IMR technology realizes automation of In-mold labeling, pattern decoration, metal imitation and the like, reduces labor cost and improves production efficiency.
However, the IMR decorative film also has the disadvantage that the basic film is required to be peeled off during the injection molding process of the decorative film, and the printed layer is directly contacted with the outside without the protection of the plastic sheet, so that the decorative pattern is easily worn or oxidized in daily use, gradually loses durability, and affects the service life.
Disclosure of Invention
The embodiment of the application aims to provide the wear-resistant coating, the preparation method thereof and the decorative film, wherein the wear-resistant coating has good wear resistance, does not contain heavy metal elements such as antimony and lead, is environment-friendly, and the decorative film prepared from the wear-resistant coating has good wear resistance and weather resistance and long service life.
In a first aspect, an embodiment of the present application provides a wear-resistant coating, which comprises the following components in parts by weight: 35-40 parts of a resin matrix; 50-55 parts of a dispersion liquid; 10-15 parts of microcapsule lubricating particles; the resin matrix is at least one of acrylic resin or organic silicon resin, the microcapsule lubricating particles are solid lubricating particles coated with cellulose on the surface, and the solid lubricating particles are WS2Or MoS2At least one of (1).
WS2And MoS2All the materials are in a layered structure, crystals are in a hexagonal system, and the Van der Waals force between layers is small, so that the shearing strength is low, the friction coefficient is small, and if the materials are used for preparing a coating in a coating, the worn parts on the surface of the coating can be automatically filled, so that the surface of the coating is positioned on the surface of the coatingThe flat state can reduce the friction coefficient of the coating. But due to WS2And MoS2Are inorganic particles, and thus it is difficult to uniformly disperse them in an organic coating material to form a coating layer.
In the technical scheme, after a layer of cellulose is coated on the surface of the solid lubricating particle for microencapsulation treatment, the solid lubricating particle can be well and uniformly dispersed in the coating to prepare the coating. When the coating is used, the cellulose on the surface is worn firstly, then the solid lubricating particles are exposed, and the solid lubricating particles can fill the worn part on the surface of the coating, so that the flatness of the surface of the coating can be increased, the friction coefficient can be reduced, and the wear resistance of the coating is improved.
Acrylic resin or organic silicon resin is used as a resin matrix, so that the microcapsule lubricating particles can be well dispersed in the resin matrix, and the wear-resistant coating has good leveling property; the wear-resistant coating can be coated on the surface of other substrates to form a film and further cured to form a layer structure, so that the microencapsulated WS can be well coated2Or MoS2The particles adhere to the surface of the coating.
The dispersion can provide a good dispersion storage environment for the microcapsule lubricating particles, and the service life of the microcapsule lubricating particles is prolonged.
In one possible implementation, the cellulose is at least one of ethyl cellulose, carboxymethyl cellulose, cellulose acetate phthalate; and/or the average particle size of the solid lubricating particles is 50-200 nm.
In the technical scheme, the ethyl cellulose, the carboxymethyl cellulose and the cellulose acetate phthalate are cheap and easily available, and the solid lubricating particles can be more remarkably improved in dispersing performance in the coating by microencapsulating the solid lubricating particles by using the ethyl cellulose, the carboxymethyl cellulose and the cellulose acetate phthalate as shells; the solid lubricating particles with the average particle size of 50-200 nm are selected, so that the solid lubricating particles can play a lubricating and antifriction effect, and the solid lubricating particles are also suitable for preparing a wear-resistant layer. The average particle size of the solid lubricating particles is too large, so that the wear resistance of the coating prepared from the wear-resistant coating is reduced; the average particle size of the solid lubricating particles is too small, which is difficult to realize technically and the manufacturing cost is high.
In one possible implementation, the silicone resin is at least one of phenyltrichlorosilane, diphenyldichlorosilane, or methylphenyldichlorosilane; and/or the dispersion liquid is at least one of methyl acrylate, ethyl acetate and butyl acrylate.
In the technical scheme, the phenyltrichlorosilane, the diphenyldichlorosilane and the methylphenyldichlorosilane are organic silicon resins with phenyl groups, and the organic silicon resins are high-crosslinked polyorganosiloxanes with a net structure, so that the adhesive force of the wear-resistant coating to a base material can be improved.
In one possible implementation manner, the components of the wear-resistant coating further include, in parts by weight: 1-2 parts of an emulsifier; 0.2-0.5 part of additive; TiO 221-3 parts of nano metal oxide as an additive.
In the technical scheme, the nano metal oxide has high surface activity, good adsorbability with organic polymers of a resin matrix and strong affinity; when the coating is prepared, the nano metal oxide is used as an additive, numerous hard points which are dispersedly distributed can be formed on the surface of a soft matrix of the coating, and the hard points and the microcapsule lubricating particles are cooperated to improve the wear resistance of the coating. The emulsifier is used as a surfactant, and can reduce the surface tension of each component in the coating and promote the dispersion effect. TiO 22Can improve the weather resistance of the wear-resistant coating.
In one possible implementation, the additive is α -Al2O3At least one of magnesia and zirconia; and/or the emulsifier is at least one of emulsifier OP-10, span-80 and tween-20; and/or, TiO2Is in rutile type.
In the above technical scheme, rutile type TiO2Compact structure, small photochemical activity, and is compared with anatase TiO2The weather resistance is better, and the overall weather resistance of the decorative film can be better improved.
In a second aspect, the embodiment of the present application provides a preparation method of the above wear-resistant coating, which includes: uniformly mixing 35-40 parts by weight of resin matrix, 1-2 parts by weight of emulsifier and 50-55 parts by weight of dispersion liquid to prepare a solution; will 10-15 parts of microcapsule lubricating particles, 0.2-0.5 part of additive and 1-3 parts of TiO2Mixing with solvent.
In the technical scheme, the wear-resistant coating prepared by the method is good in uniformity and stability, does not contain heavy metal elements, and reduces environmental pollution; the coating formed by coating the wear-resistant paint has the advantages of small friction coefficient, good wear resistance and long service life.
In one possible implementation, the step of preparing the microencapsulated lubricant particles comprises: uniformly mixing cellulose and a liquid medium, and heating to 76-80 ℃ to form a coating solution; and mixing the solid lubricating particles and the coating liquid, carrying out ultrasonic dispersion for 15-30 min, then cooling to 0-30 ℃ to precipitate cellulose, and washing the crude product by using a liquid medium.
In above-mentioned technical scheme, solid lubrication particle can provide the crystal nucleus for the cellulose, and after the cladding liquid cooling, the cellulose just can be separated out on solid lubrication particle's surface, just so can obtain the solid lubrication particle that the surface cladding has the cellulose to ensure solid lubrication particle even dispersion in the resin matrix.
In one possible implementation, the liquid medium is at least one of glycerol, cyclohexane, methanol, ethanol.
In a third aspect, an embodiment of the present application provides a decorative film, which includes an abrasion-resistant layer, a coloring layer, an aluminum plating layer, and an adhesive layer, which are stacked in sequence, where the abrasion-resistant layer is the above-mentioned abrasion-resistant layer.
In above-mentioned technical scheme, after plastic goods shaping, the wearing layer can play the effect of protection dyed layer, prolongs the life of decorating the diaphragm. And the wear-resistant layer has good adhesive force and can not fall off from the surface of the coloring layer.
In a possible implementation manner, the decorative film further comprises an antistatic layer, a base film layer and a stripping layer which are sequentially stacked, wherein the stripping layer is arranged on one side of the wear-resistant layer, which is far away from the coloring layer.
In the technical scheme, the antistatic layer can eliminate static electricity generated in the production process of the decorative membrane, so that the production process is safer; the base film layer can provide a template for the decorative film, and the stripping layer ensures that the antistatic layer, the base film layer and the stripping layer are normally stripped from the surface of the wear-resistant layer without influencing the subsequent use of the decorative film.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a decorative film in an application example of the present application.
Icon: 100-an antistatic layer; 200-a base film layer; 300-peeling off layer; 400-a wear resistant layer; 500-a coloured layer; 600-plating an aluminum layer; 700-adhesive layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The abrasion-resistant coating, the preparation method thereof and the decorative film of the embodiment of the present application are specifically described below.
The wear-resistant coating comprises the following components in parts by weight: 35-40 parts of a resin matrix; 50-55 parts of a dispersion liquid; 10-15 parts of microcapsule lubricating particles; 1-2 parts of an emulsifier; 0.2-0.5 part of additive; TiO 221-3 parts of a resin matrix, a dispersion liquid and a microcapsule lubricating particle, wherein the resin matrix is at least one of acrylic acid or organic silicon, the dispersion liquid is at least one of methyl acrylate, ethyl acetate and butyl acrylate, the microcapsule lubricating particle is a solid lubricating particle with a cellulose-coated surface, and the solid lubricating particle is WS2Or MoS2At least one of the additives is a nanoscale metal oxide.
WS2And MoS2The coating contains solid lubricating particles, and when the coating is prepared, the coating can automatically fill up the worn part on the surface of the coating, so that the surface of the coating is in a flat state, and the friction coefficient of the coating can be reduced. The average particle size of the solid lubricating particles is 50-200 nm, for example, the average particle size can be 50nm, 60nm, 80nm, 120nm, 160nm, 180nm, 200nm or the range between any two values, so that the solid lubricating particles can play a lubricating and friction reducing effect, and the solid lubricating particles can be suitable for preparing the coating.
The cellulose coated on the surface of the solid lubricating particle is an organic macromolecule, and can promote the solid lubricating particle to be uniformly dispersed in the organic coating, so that the problem that the solid lubricating particle cannot play the functions of filling and lubricating due to aggregation and agglomeration is avoided. And after the coating is prepared into a coating, the cellulose can also increase the wear resistance of the coating. In this embodiment, the cellulose is at least one of ethyl cellulose, carboxymethyl cellulose, or cellulose acetate phthalate.
The acrylic resin or the organic silicon resin can increase the surface activation energy of the wear-resistant coating and can well disperse the microcapsule lubricating particles in the wear-resistant coating, so that the wear-resistant coating has good leveling property, the wear-resistant coating is favorably coated on the surface of a base material and is cured to form a layer structure with good adhesive force, and the microencapsulated WS can be well dispersed2Or MoS2The particles adhere to the surface of the coating. The organic silicon resin is generally phenyl organic silicon resin, and the organic silicon resin is polyorganosiloxane which is highly crosslinked and has a net structure and can improve the adhesive force of the wear-resistant coating to a base material. Specifically, the silane coupling agent may be at least one of phenyltrichlorosilane, diphenyldichlorosilane, and methylphenyldichlorosilane.
Methyl acrylate, ethyl acetate or butyl acrylate can provide a good dispersed storage environment for the microcapsule lubricating particles, and the service life of the microcapsule lubricating particles is prolonged.
The nanometer metal oxide has high surface activity and is adsorbed to the organic polymer in the resin matrixGood in performance and strong in affinity; when the coating is prepared, the nano metal oxide is used as an additive, numerous hard points which are dispersedly distributed can be formed on the surface of a soft matrix of the coating, and the hard points and the microcapsule lubricating particles are cooperated to improve the wear resistance of the coating. Specifically, the additive is alpha-Al2O3At least one of magnesia and zirconia. In the examples of the present application, the additive is generally alpha-Al2O3。
The emulsifier can reduce the surface tension of each component in the coating and promote the dispersion effect, and is a surfactant. Specifically, the emulsifier is at least one of emulsifiers OP-10, span-80 and tween-20. In the examples of this application, the emulsifier is generally emulsifier OP-10.
TiO2Can improve the weather resistance of the wear-resistant coating, wherein the rutile type TiO2Compact structure, small photochemical activity, and is compared with anatase TiO2The weather resistance is better, and the overall weather resistance of the decorative film can be better improved. Thus, in the examples of this application, TiO2All of which are rutile type.
The preparation steps of the wear-resistant coating are as follows:
uniformly mixing 35-40 parts of resin matrix, 1-2 parts of emulsifier and 50-55 parts of dispersion liquid according to parts by weight to prepare a solvent; 10-15 parts of microcapsule lubricating particles, 0.2-0.5 part of additive and 1-3 parts of TiO2Mixing with solvent.
Wherein, the preparation steps of the microcapsule lubricating particles are as follows:
uniformly mixing cellulose and a liquid medium, and heating to 76-80 ℃ to form a coating solution; mixing the solid lubricating particles and the cladding liquid, carrying out ultrasonic dispersion for 15-30 min, then cooling to 0-30 ℃ to precipitate a crude product, and then washing the crude product by using a liquid medium.
The liquid medium is mixed with the cellulose to form coating liquid, so that the solid lubricating particles can be conveniently coated subsequently. Since cellulose is a macromolecular organic substance, in order to adapt to cellulose, the liquid medium is usually an organic solvent, and specifically, the liquid medium may be at least one of glycerol, cyclohexane, methanol and ethanol. Cladding liquid and solid lubrication particle mix and by the ultrasonic dispersion, solid lubrication particle can evenly distributed in the cladding liquid, and during the cooling, every solid lubrication particle of dispersion in the cladding liquid all can regard as the crystal nucleus of cellulose, makes the cellulose separate out on the surface of solid lubrication particle, just so can make the surface cladding of solid lubrication particle have a layer of cellulose.
The structure of the decorative film in the embodiment of the present application includes an antistatic layer 100, a base film layer 200, a peeling layer 300, a wear-resistant layer 400, a coloring layer 500, an aluminum-plated layer 600, and an adhesive layer 700 (see fig. 1) which are sequentially stacked, wherein the wear-resistant layer 400 is formed by coating the above wear-resistant paint on the peeling layer.
The antistatic layer 100 is made of polyurethane or polyaniline, so that static electricity generated during coating and damage caused by the static electricity can be eliminated, and the production process is safer. The base film layer 200 is made of polyethylene glycol terephthalate (PET). Other biaxially oriented polyester film type materials such as Polycarbonate (PC) or PET/PC composites may also be used. The main component of the peeling layer 300 is silicone resin, which falls off after being heated, and is beneficial to the in-film transfer process of the decorative film.
The coloring layer 500 is a color pattern layer with laser holographic anti-counterfeiting effect, and is manufactured by processes of coating, printing and the like, so that the decorative film has an integral attractive effect. The adhesive layer 700 is a polyurethane thermosetting adhesive layer and is adhered to the surface of the plastic product under the action of hot pressing during the in-mold transfer printing of the injection molding.
When the decorative film is used, the decorative film is attached to a substrate, and then the antistatic layer 100, the base film layer 200 and the peeling layer 300 are peeled off, so that the abrasion resistant layer 400 is the outermost layer structure of the decorative film.
Since the wear-resistant layer 400 is prepared by coating wear-resistant paint, WS is contained in the layer structure2Or MoS2The solid lubricating particles can repair the worn part of the surface in time, and can reduce the friction coefficient of the surface of the decorative membrane and reduce the loss of the decorative membrane; and the cellulose on the surface of the solid lubricant particles can also enhance the wear resistance of the wear-resistant layer 400.
The features and properties of the present application are described in further detail below with reference to examples.
Example 1
The embodiment provides a wear-resistant coating, and the preparation method specifically comprises the following steps:
firstly, preparing microcapsule lubricating particles: mixing ethyl cellulose and glycerol, stirring, heating to 76 ℃ and forming a coating solution; WS having an average particle diameter of 50nm2Adding the mixture into a coating solution, performing ultrasonic dispersion for 15min, cooling a reaction system to 0 ℃ until solids are separated out, and washing the separated solids by using glycerol to obtain the microcapsule lubricating particles.
Then, uniformly mixing 35 parts of acrylic resin, 1 part of emulsifier OP-10 and 50 parts of methyl acrylate according to parts by weight to prepare a solvent; 10 parts of the microcapsule lubricating particles in the present example and 0.2 part of alpha-Al were taken2O3And 1 part of rutile type TiO2Adding the mixture into a solvent, and uniformly mixing to obtain the wear-resistant coating.
Example 2
The embodiment provides a wear-resistant coating, and the preparation method specifically comprises the following steps:
firstly, preparing microcapsule lubricating particles: mixing carboxymethyl cellulose and glycerol according to parts by weight, stirring and heating to 80 ℃ to form a coating solution; WS having an average particle diameter of 200nm2Adding the mixture into a coating solution, performing ultrasonic dispersion for 30min, cooling a reaction system to 30 ℃ until solids are separated out, and washing the separated solids by using glycerol to obtain the microcapsule lubricating particles.
Then, uniformly mixing 40 parts of phenyl trichlorosilane, 2 parts of emulsifier OP-10 and 55 parts of methyl acrylate according to parts by weight to prepare a solvent; 15 parts of the microencapsulated lubricant particles of this example, 0.5 part of alpha-Al2O3And 3 parts of rutile TiO2Adding the mixture into a solvent, and uniformly mixing to obtain the wear-resistant coating.
Example 3
This example provides a wear-resistant coating, and the preparation method thereof is different from that of example 1 in that:
in the preparation of microcapsule lubricating particlesIn the process of granulation, WS having an average particle diameter of 50nm is granulated2By replacing with MoS having an average particle diameter of 50nm2。
Example 4
This example provides a wear-resistant coating, and the preparation method thereof is different from that of example 2 in that:
in the preparation of microencapsulated lubricant particles, WS having an average particle size of 200nm is added2Replacement by MoS having an average particle diameter of 150nm2。
Comparative example 1
The comparative example provides a wear-resistant coating, the preparation method of which is as follows:
mixing 35 parts of acrylic resin, 1 part of emulsifier OP-10 and 50 parts of methyl acrylate uniformly according to parts by weight to prepare a solvent; then 10 parts of WS having an average particle size of 50nm were taken20.2 part of alpha-Al2O3And 1 part of rutile type TiO2Adding the mixture into a solvent, and uniformly mixing to obtain the wear-resistant coating.
Comparative example 2
This comparative example provides a wear-resistant coating, the preparation method of which differs from example 2 in that:
40 parts of methyltrichlorosilane was used as the resin matrix.
Comparative example 3
This comparative example provides a wear-resistant coating, the preparation method of which differs from that of example 1 in that:
no 35 parts resin matrix was included.
Comparative example 4
This comparative example provides a wear-resistant coating, the preparation method of which differs from that of example 1 in that:
using WS having an average particle size of 250mm2Instead of WS having an average particle diameter of 50nm2。
Comparative example 5
This comparative example provides a wear-resistant coating, the preparation method of which differs from example 3 in that:
using MoS with an average particle size of 40nm2Instead of MoS having an average particle diameter of 50nm2。
The specific components and parts by weight of examples 1 to 4 and comparative examples 1 to 5 are shown in Table 1.
TABLE 1 specific Components and parts by weight in examples 1 to 4 and comparative examples 1 to 5
Figure BDA0003432985330000101
Application example 1
The wear-resistant coatings in examples 1-4 and comparative examples 1-5 are used for preparing the wear-resistant layer 400 in the decorative film respectively, and the structural materials of the rest layers are the same. After the decorative film is manufactured by the coating process, the plastic molding part is manufactured by the in-mold injection molding process, the stripping layer 300, the base film layer 200 and the antistatic layer 100 are stripped off, and the final outer layer of the molding part is the wear-resistant layer 400. The wear resistance and weather resistance of the formed part are characterized as follows:
1. and (3) testing the wear resistance: testing the coated formed piece by using a 339 type alcohol rubber abrasion tester, wherein the load is 500g, a 0000# steel wool coating grinding head is selected for carrying out reciprocating friction for 50 times, the stroke of the same position is 20mm, and the surface abrasion condition is observed;
2. and (3) testing the adhesive force: adopting a grid cutting method to cut 100 small grids on the surface of a formed part in a cross way by using a special cutter, wherein the cutting distance is 1.0mm, and the cutting is to reach the substrate; sticking a 3M adhesive tape on a cutting area, compacting by hands, quickly pulling down the adhesive tape after placing for 5 minutes, observing the peeling condition of the inner surface layer of the grid area, and grading by referring to GBT 9286 plus 2021 'test for scratching colored paint and varnish';
3. testing UV aging resistance: after 72 hours at 60 ℃ under the conditions of 15W UVA + UVB test, perpendicular to the surface of the shaped part and at a distance of 10cm, the difference of the colour of the surface of the shaped part before and after the test, Delta E, is measured.
TABLE 2 results of the Performance test of the coatings prepared in examples 1 to 4 and comparative examples 1 to 5
Figure BDA0003432985330000111
Adhesion description: level 0 indicates that the cut edge is completely smooth and no drop occurs in the grid; level 1 indicates that there was little coating peeling at the cut intersection, but the affected cross-cut area was no more than 5%; level 2 indicates that there is coating fallout at/along the cut edges, and the affected cross-cut area is greater than 5%, not greater than 15%.
As can be seen from table 2, compared with other decorative films, the decorative film made of the wear-resistant coating of the embodiment of the present application has good wear resistance and weather resistance, and long service life; and does not contain heavy metal elements such as antimony, lead and the like, and has small pollution to the environment.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The wear-resistant coating is characterized by comprising the following components in parts by weight:
35-40 parts of a resin matrix;
50-55 parts of a dispersion liquid;
10-15 parts of microcapsule lubricating particles;
the resin matrix is at least one of acrylic resin or organic silicon resin, the microcapsule lubricating particles are solid lubricating particles coated with cellulose on the surface, and the solid lubricating particles are WS2Or MoS2At least one of (1).
2. The abrasion resistant coating according to claim 1, wherein said cellulose is at least one of ethyl cellulose, carboxymethyl cellulose, cellulose acetate phthalate;
and/or the average particle size of the solid lubricating particles is 50-200 nm.
3. The abrasion resistant coating of claim 1, wherein said silicone resin is at least one of phenyltrichlorosilane, diphenyldichlorosilane, or methylphenyldichlorosilane; and/or the dispersion is at least one of methyl acrylate, ethyl acetate and butyl acrylate.
4. The abrasion-resistant coating according to claim 1, wherein the abrasion-resistant coating further comprises, in parts by weight:
1-2 parts of an emulsifier;
0.2-0.5 part of additive;
TiO21 to 3 parts of (A) a water-soluble polymer,
the additive is a nanoscale metal oxide.
5. The wear resistant coating of claim 4 wherein said additive is alpha-Al2O3At least one of magnesia and zirconia; and/or the emulsifier is at least one of emulsifier OP-10, span-80 and tween-20; and/or, the TiO2Is in rutile type.
6. A method for preparing the wear-resistant coating as claimed in any one of claims 1 to 5, which comprises:
uniformly mixing 35-40 parts by weight of resin matrix, 1-2 parts by weight of emulsifier and 50-55 parts by weight of dispersion liquid to prepare a solution; 10-15 parts of microcapsule lubricating particles, 0.2-0.5 part of additive and 1-3 parts of TiO2And mixing with the solution uniformly.
7. The method of claim 6, wherein the step of preparing the microencapsulated lubricant particles comprises:
uniformly mixing cellulose and a liquid medium, and heating to 76-80 ℃ to form a coating solution; and mixing the solid lubricating particles with the coating liquid, carrying out ultrasonic dispersion for 15-30 min, then cooling to 0-30 ℃ to precipitate cellulose, and then washing with the liquid medium.
8. The method according to claim 7, wherein the liquid medium is at least one of glycerin, cyclohexane, methanol, and ethanol.
9. A decorative film, which is characterized by comprising a wear-resistant layer, a coloring layer, an aluminum-plated layer and an adhesive layer which are sequentially stacked, wherein the wear-resistant layer is formed by coating the wear-resistant coating material according to any one of claims 1 to 5.
10. The decorative film according to claim 9, further comprising an antistatic layer, a base film layer and a peeling layer, which are sequentially stacked, wherein the peeling layer is disposed on a side of the abrasion-resistant layer away from the coloring layer.
CN202111600597.XA 2021-12-24 2021-12-24 Wear-resistant coating, preparation method thereof and decorative film Pending CN114181574A (en)

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CN103060066A (en) * 2013-01-29 2013-04-24 安徽工业大学 Microencapsulated tungsten disulfide dry-film lubricant
CN110016277A (en) * 2019-05-07 2019-07-16 河南科技大学 It is used to prepare the composition, self-lubricating abrasion-resistant coating, self-lubricating wear-resistant coating, self-lubricating abrasion-proof material of self-lubricating abrasion-proof material

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Publication number Priority date Publication date Assignee Title
WO2010126035A1 (en) * 2009-05-01 2010-11-04 アクロス株式会社 Film composition for sliding member
CN102417796A (en) * 2011-08-31 2012-04-18 保定乐凯新材料股份有限公司 Metal decorating film with hardened protective layer and preparation method thereof
CN103060066A (en) * 2013-01-29 2013-04-24 安徽工业大学 Microencapsulated tungsten disulfide dry-film lubricant
CN110016277A (en) * 2019-05-07 2019-07-16 河南科技大学 It is used to prepare the composition, self-lubricating abrasion-resistant coating, self-lubricating wear-resistant coating, self-lubricating abrasion-proof material of self-lubricating abrasion-proof material

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