WO2021083042A1 - Preparation method for nano antibacterial wallboard, and nano antibacterial wallboard - Google Patents

Preparation method for nano antibacterial wallboard, and nano antibacterial wallboard Download PDF

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Publication number
WO2021083042A1
WO2021083042A1 PCT/CN2020/123208 CN2020123208W WO2021083042A1 WO 2021083042 A1 WO2021083042 A1 WO 2021083042A1 CN 2020123208 W CN2020123208 W CN 2020123208W WO 2021083042 A1 WO2021083042 A1 WO 2021083042A1
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WO
WIPO (PCT)
Prior art keywords
antibacterial
adhesive glue
coating
nano antibacterial
substrate
Prior art date
Application number
PCT/CN2020/123208
Other languages
French (fr)
Chinese (zh)
Inventor
胡福涛
Original Assignee
苏州科逸住宅设备股份有限公司
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Publication of WO2021083042A1 publication Critical patent/WO2021083042A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0866—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
    • 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
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • 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
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • 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
    • C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
    • C09J167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/06—Unsaturated polyesters
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • 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
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass

Definitions

  • the invention relates to the technical field of home improvement building materials, in particular to a preparation method of a nano antibacterial wallboard and a nano antibacterial wallboard.
  • the overall bathroom uses composite materials to replace wooden substrates, marble, etc.
  • the existing overall bathroom uses SMC wall panels, and the overall bathroom
  • the decorative board is pressed by SMC.
  • the front and back of the decorative board have the same color and the color of the SMC material. The color is single, and it is impossible to make a colorful decorative board as bright as the wall.
  • the patent name is: the invention patent of integral bathroom wallboard and its preparation method, discloses a composite thin aluminum plate on a molded plate obtained from a sheet molding compound, so that The prepared wallboard has optional colors and is resistant to aging.
  • the surface is not wear-resistant, corrosion-resistant, and cannot be anti-bacterial and anti-corrosion.
  • the purpose of the present invention is to provide a preparation method of nano antibacterial wallboard and nano antibacterial wallboard.
  • the decorative paper of the wallboard has high bonding strength with the substrate, and the decorative paper
  • the surface has a nano antibacterial layer, which can be antibacterial, mildew, chemical resistant, and wear resistant.
  • a preparation method of nano antibacterial wallboard includes the following steps:
  • the laying area of the sheet molding compound is 70%-90% of the orthographic projection area of the final nano antibacterial wallboard, and then lay the dried facing paper
  • the adhesive glue is located between the facing paper and the sheet molding compound, and then integrally molded; after molding, a wallboard with facing paper attached to the surface of the substrate is obtained.
  • the embedding layer is composed of the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the sheet molding compound It is formed after curing on the side close to the decorative paper, and the side of the decorative paper away from the substrate has a nano antibacterial layer formed by curing the antibacterial coating;
  • the antibacterial coating, adhesive glue and sheet molding compound all include the following raw materials: unsaturated polyester resin, curing agent, filler and crosslinking agent, and the antibacterial coating also includes nano oxide.
  • the mass percentage of unsaturated polyester resin in the adhesive glue is greater than the mass percentage of unsaturated polyester resin in the substrate; the mass percentage of filler in the adhesive glue is smaller than the substrate The mass percentage of the filler.
  • the mass percentage of the unsaturated polyester resin in the adhesive glue is 35-50%, and the mass percentage of the filler in the adhesive glue is 15-25%; the mass percentage of the unsaturated polyester resin in the substrate The percentage is 15-40%, and the mass percentage of the filler in the substrate is 40%-60%.
  • the adhesive glue includes the following parts by weight of raw materials:
  • the preparation of the adhesive glue includes the following steps: adding unsaturated polyester resin, curing agent, coupling agent, filler, and crosslinking agent styrene into a rubber tank in proportion, stirring at room temperature for 20-30 minutes, and rotating speed 300-400r/min, the adhesive glue will be obtained after stirring evenly.
  • the sheet molding compound includes the following parts by weight of raw materials:
  • Adopting adhesive glue with similar composition to the sheet molding compound so that when it is molded with the sheet molding compound, the sheet molding compound can cross-link with the adhesive glue to produce a fusion to form an integrated product, facing paper
  • the combination with the substrate is stronger.
  • the antibacterial coating includes raw materials of the following ingredients: unsaturated polyester resin, curing agent, coupling agent, filler, cross-linking agent styrene, nano oxide and mold release agent.
  • the nano-oxide is nano-silica or titanium dioxide.
  • the antibacterial coating includes the following raw materials in parts by weight:
  • the preparation of the antibacterial coating includes the following steps: adding unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and crosslinking agent styrene into the rubber barrel in proportion, Stir at room temperature for 40-60min, rotate speed 300-400r/min, and obtain antibacterial coating after evenly stirring.
  • the curing agent in the above raw materials includes tert-butyl peroxybenzoate (TBPB) and/or benzoyl peroxide.
  • the curing agent is tert-butyl peroxide (2-ethylhexanoic acid), peroxide
  • TBPB tert-butyl peroxybenzoate
  • peroxide tert-butyl peroxide
  • methyl ethyl ketone tert-butyl peroxybenzoate
  • dibenzoyl peroxide bis(4-tert-butyl)cyclohexyl peroxide, dilauroyl peroxide or fatty polyamine, etc. combination
  • dilauroyl peroxide or fatty polyamine etc. combination
  • the coupling agent is a silane coupling agent and/or titanate; specifically, the silane coupling agent is ⁇ -(methacryloxypropyl)trimethoxysilane, ⁇ -(2,3) -Glycidoxy)propyltrimethoxysilane, N- ⁇ (aminoethyl)- ⁇ -aminopropylmethyldimethoxysilane, N-( ⁇ -aminoethyl)- ⁇ -aminopropyl Triethoxysilane, N- ⁇ (aminoethyl)- ⁇ -aminopropyltrimethoxysilane, aniline methyltriethoxysilane, ⁇ -aminopropyltriethoxysilane, vinyl triethoxy One or more combinations of hydroxysilane, vinyltrimethoxysilane, ⁇ -chloropropyltriethoxysilane, and the like.
  • the unsaturated resin used in the sheet molding compound is ortho-benzene, iso-benzene, or epoxy vinyl ester unsaturated resin, and the molecule contains an appropriate amount of carboxyl groups to facilitate thickening;
  • the curing agent used is Tert-butyl oxybenzoate or tert-butyl peroxide (2-ethylhexanoate), or tert-butyl oxybenzoate and tert-butyl peroxide 2-ethylhexanoate according to the mass ratio (0.7-0.8): (0.3-0.2) composite curing agent system.
  • the above-mentioned crosslinking agent is styrene; the filler is aluminum hydroxide powder with a particle size less than or equal to 10 ⁇ m or calcium carbonate powder with a particle size less than or equal to 10 ⁇ m or a mixture of the two, and the release agent is stearin Zinc acid and/or calcium stearate.
  • the viscosity of the unsaturated polyester resin is 1100-1400mPa.s (23°C); the viscosity of the adhesive glue is 1000-1300mPa.s (23°C); the viscosity of the antibacterial coating It is 1200-1500mPa.s (23°C).
  • the preparation method of the nano antibacterial wallboard includes the following steps:
  • Adhesive glue preparation add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the glue bucket according to the following proportions, stir well and set aside;
  • Antibacterial coating preparation Add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber bucket according to the following proportions, stir well and then set aside;
  • step 3 Coating and pre-curing of adhesive glue: Add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the thickness of the glue layer. Scrape the excess glue away with a spatula. After smoothing, make sure that the thickness of the adhesive glue is even and consistent. Dry the facing paper coated with adhesive glue for the first time; after the first drying, the adhesive glue is not complete Curing
  • step 4 Coating and pre-curing of the antibacterial coating: add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, control the thickness of the coating, and use The squeegee scrapes the excess paint away. After it is leveled, the thickness of the antibacterial coating is ensured to be uniform.
  • the facing paper coated with adhesive glue and antibacterial coating is dried for the second time, and the oven temperature is ensured to ensure the second drying.
  • the curing degree of the adhesive glue and antibacterial coating on the back facing paper is about 80-90%; the adhesive glue is not completely cured, and the composition of the adhesive glue is close to the substrate, which not only makes the curing conditions the same, and the preparation process is easy to control, In addition, during molding, a cross-linking reaction can occur between the adhesive glue and the sheet molding compound, resulting in fusion, forming an integrated product, and making the bonding of the decorative paper and the substrate stronger;
  • Step 6) Compression and solidification molding: First, lay the sheet molding compound prepared in step 5) into the mold. The laying area of the sheet molding compound is 70%-90% of the orthographic projection area of the final wallboard, and then the step 4) The decorative paper after the second drying is laid on the sheet molding compound in the mold, and integrally molded; during the molding process, the cavity is on the top, the core is down, the decorative paper is close to the cavity, and the sheet molding compound It is close to the core to prevent the decorative pattern from being stretched due to the flow of the sheet molding compound at high temperatures, and to prevent the decorative paper from wrinkling; after molding, the wallboard with the decorative paper attached to the surface of the substrate is obtained.
  • the decorative paper is formed after curing on one side, and the side of the decorative paper away from the substrate has a nano antibacterial layer formed by curing an antibacterial coating.
  • the wallboard prepared by the above method can greatly improve the appearance of the wallboard, the flexibility and stability of the facing paper, the resistance to chemical reagents, abrasion resistance and other comprehensive properties while ensuring the cost. It has high peel strength and antibacterial function. .
  • the steps are distinguished and numbered.
  • the above steps include the preparation of adhesive glue and coating and pre-curing, the preparation of antibacterial coatings, and the coating and pre-curing, sheet
  • the preparation of the molding compound can be carried out simultaneously or in no order.
  • the drying conditions for the first drying in step 3) the pre-curing of the adhesive glue are: drying at 120-130°C for 1-2 min; the drying conditions for the second drying in step 4) the pre-curing of the antibacterial coating It is: drying at 135-150°C for 1-2min.
  • the coating thickness of the adhesive glue is 20-30 ⁇ m
  • the thickness of the embedded layer formed after curing and molding is 10-20 ⁇ m
  • the coating thickness of the antibacterial coating is 50-70 ⁇ m
  • the curing The thickness of the nano antibacterial layer formed after molding is 30-50 ⁇ m.
  • the molding conditions in step 6) compression curing molding are cavity temperature of 135-155°C, core temperature of 125-145°C, pressure holding time of 80-180s, and compression molding cycle of 140-240s/piece.
  • the molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard. Too slow molding cycle will cause pre-cured spots on the surface of the product, and sometimes defects such as material shortage.
  • the flow rate of sheet molding compound (SMC) in the mold will increase, and the quality of the product will increase first. The decreasing trend indicates that the molding cycle is too long, which will cause the sheet material to flow quickly, and the air is not easy to discharge, leading to defects such as local wrinkles.
  • Low molding temperature will lead to poor curing on the surface of the product and abnormal surface peelability; as the molding temperature increases, the appearance quality of the sample increases first and then decreases, indicating that the integral molding requires a higher reaction temperature; the laying area is too high The conference will cause poor exhaust on the surface of the product, and whitish micropores. If the laying area is too small, it will cause the colored paper to break and wrinkle.
  • the present invention provides a nano antibacterial wallboard, comprising a substrate and a facing paper composited with the substrate, the substrate is formed by molding and curing sheet molding compound, and an embedding layer is provided between the substrate and the facing paper, The embedding layer is formed by curing the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper, The side of the facing paper away from the substrate has a nano antibacterial layer, the nano antibacterial layer is formed by curing an antibacterial coating; the nano antibacterial wallboard is made of the sheet molding compound, adhesive glue, and facing paper The antibacterial coating is integrally molded and molded; the antibacterial coating, adhesive glue and sheet molding compound all include the following raw materials: unsaturated polyester resin, curing agent, filler and crosslinking agent, the antibacterial coating also includes nano oxide Things.
  • the nano antibacterial wallboard is integrally molded and cured by the sheet molding compound, adhesive glue, facing paper and antibacterial paint.
  • Adhesive glue uses raw materials similar to the substrate material, which not only makes the curing conditions the same and the preparation process is easy to control, but also can be partially fused with the sheet molding compound during molding, so that the substrate and the facing paper have high bonding strength and peel strength High; the nano antibacterial layer can not only protect the facing paper, prevent the facing paper from being damaged, make the wallboard resistant to mildew, abrasion, and chemical reagents, extend the service life of the wallboard, and have an antibacterial effect.
  • the advantage of the present invention is that the preparation method of the nano antibacterial wallboard of the present invention is by coating adhesive glue on one side of the facing paper and coating antibacterial paint on the other side.
  • the composition is similar to the substrate, and the pre-curing method makes the adhesive glue and antibacterial coating not fully cured before molding.
  • the adhesive glue, antibacterial coating and sheet molding compound are cured together, which not only makes the preparation process It is easy to control, and makes the bonding between the decorative paper and the substrate more firm and reliable after molding; the adhesive glue and antibacterial coating are applied to the decorative paper so that the decorative paper can be fully wetted and fully moisturized
  • the wet veneer paper can better fit with the sheet molding compound when it is molded, which can avoid the undesirable situation of the veneer paper being torn during the molding process, improve the yield rate, and ensure the quality of the final wallboard product .
  • the nano antibacterial wallboard of the present invention has an adhesive glue similar to the composition of the substrate between the decorative paper and the substrate, so that the combination between the substrate and the decorative paper is firmer and more reliable. With a nano antibacterial layer, it can not only prevent damage to the decorative paper and prolong the service life of the wallboard, but also has the effect of antibacterial and mildew resistance, making the wallboard resistant to wear and chemical agents.
  • the nano antibacterial wallboard in this embodiment includes a substrate and a decorative paper compounded with the substrate.
  • the substrate is formed by curing a sheet molding compound.
  • With nano antibacterial layer is formed by curing the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper.
  • the nano antibacterial layer is cured by the antibacterial coating form.
  • the nano antibacterial wallboard is integrally molded by sheet molding compound, adhesive glue, facing paper and antibacterial coating.
  • Both the adhesive glue and the substrate include the following raw materials: unsaturated polyester resin, curing agent, coupling agent, filler and styrene.
  • Adhesive glue uses raw materials similar to the substrate material, which not only makes the curing conditions the same, and the preparation process is easy to control, but also the adhesive glue can be partially fused with the sheet molding compound during molding, so that the final product substrate and the facing paper High bonding strength and high peel strength.
  • the antibacterial coating has nano-oxide components such as nano-silica.
  • the nano-antibacterial layer formed by the curing of the antibacterial coating can not only protect the decorative paper, prevent the decorative paper from being damaged, extend the service life of the wallboard, and make the wallboard antibacterial and mildew proof. , Wear and chemical reagents.
  • the thickness of the embedding layer is controlled within 10-20 ⁇ m, and the thickness of the nano antibacterial layer is controlled within 30-50 ⁇ m to ensure the overall thickness of the wallboard.
  • the substrate in this embodiment is a sheet molding compound
  • the adhesive glue uses raw materials similar to the composition of the sheet molding compound, so that when the sheet molding compound is molded with the molding compound, the sheet molding compound can cross-link with the adhesive glue. , Produce partial fusion, form an integrated product, the combination of decorative paper and substrate is more firm and stable.
  • This embodiment provides a method for preparing the nano antibacterial wallboard in embodiment 1, which includes the following steps:
  • Adhesive glue preparation Add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the rubber bucket according to the following proportions, stir at room temperature for 25min, rotate speed 350r/min, and stir evenly before use.
  • Antibacterial coating preparation add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber barrel in the following proportions, stir at room temperature for 25 minutes, and rotate at 350r/min , Stir well and set aside.
  • step 3 Coating and pre-curing of adhesive glue: add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the adhesive glue
  • the thickness of the glue layer is 25 ⁇ m. Use a spatula to scrape away the excess glue. After smoothing, make sure that the thickness of the adhesive glue is uniform. Dry the facing paper coated with the adhesive glue for the first time; after the first drying, The adhesive glue is not completely cured; the drying conditions for the first drying are: drying at 125°C for 2 minutes.
  • Coating and pre-curing of the antibacterial coating add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, and control the coating of the antibacterial coating
  • the thickness is 60 ⁇ m. Use a spatula to scrape off the excess paint. After squeegee, make sure that the thickness of the antibacterial coating is even and consistent. Dry the facing paper coated with adhesive glue and antibacterial coating for the second time to ensure the oven temperature to ensure The curing degree of the adhesive glue and antibacterial coating on the facing paper after the second drying is about 85%.
  • the drying conditions for the second drying are: drying at 145°C for 1.5 min.
  • the adhesive glue is not completely cured, and the composition of the adhesive glue is close to that of the substrate, which not only makes the curing conditions the same, and the preparation process is easy to control, but also enables the cross-linking reaction between the adhesive glue and the substrate during molding to form a whole
  • the combination of chemical products, facing paper and substrate is stronger.
  • the coating thickness of the adhesive glue is 25 ⁇ m
  • the thickness of the embedding layer formed after molding is about 15 ⁇ m
  • the coating thickness of the antibacterial coating is 60 ⁇ m
  • the thickness of the nano antibacterial layer formed after molding is about 40 ⁇ m.
  • A first mix the unsaturated polyester resin, curing agent, coupling agent, filler, styrene, auxiliary agent, and glass fiber to make a resin paste;
  • the sheet molding compound specifically includes the following raw materials in parts by weight, where E4 is the accelerator cobalt isooctanoate:
  • Compression and solidification molding Lay the sheet molding compound into the mold first, the laying area of the sheet molding compound is 80% of the orthographic projection area of the final wallboard, and then the pre-cured veneer in step 4)
  • the paper is laid on the sheet molding compound in the mold and is integrally molded.
  • the cavity is on the top, the core is on the bottom, the facing paper is close to the cavity, and the sheet molding compound is close to the core to prevent the sheet molding compound from being at high temperature.
  • the layer is formed by the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper.
  • the side of the decorative paper away from the substrate is formed by curing.
  • the nano antibacterial layer formed after the antibacterial coating is cured.
  • the molding conditions in the compression curing molding are cavity 152°C, core 143°C, pressure holding time 180s, compression molding cycle 200s/piece, and laying area 80%.
  • the molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard.
  • the viscosity of the unsaturated polyester resin in the above materials is 1100-1400 mPa.s (23° C.); the aluminum hydroxide powder is aluminum hydroxide fine powder with a particle size of 10 ⁇ m or less.
  • the steps are distinguished and numbered. In actual preparation, the above steps include the preparation of adhesive glue and coating and pre-curing, the preparation of antibacterial coatings and the coating and pre-curing, substrate The preparation can be carried out at the same time or in no order.
  • Adopt the method of coating glue on one side of the facing paper and coating on the other side, so that the facing paper can be fully wetted, and the fully wetted facing paper can be better when molded with the sheet molding compound
  • Ground bonding can avoid the undesirable situation of the decorative paper being torn during molding, and can ensure the bonding strength of the decorative paper and the substrate, and the surface of the decorative paper is resistant to wear, chemical corrosion, mildew and antibacterial.
  • This embodiment provides a method for preparing the nano antibacterial wallboard in embodiment 1, which includes the following steps:
  • Adhesive glue preparation Add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the rubber bucket according to the following proportions, stir at room temperature for 30 minutes, rotate speed 300r/min, and stir evenly before use.
  • Antibacterial coating preparation add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber barrel in the following proportions, stir at room temperature for 30 minutes, and rotate at 300r/min , Stir well and set aside.
  • step 3 Coating and pre-curing of adhesive glue: add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the adhesive glue The thickness of the glue layer is 30 ⁇ m. Use a spatula to scrape away the excess glue. After smoothing, make sure that the thickness of the adhesive glue is uniform. Dry the facing paper coated with the adhesive glue for the first time; after the first drying, The adhesive glue is not fully cured; the drying conditions for the first drying are: drying at 130°C for 1 min.
  • Coating and pre-curing of the antibacterial coating add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, and control the coating of the antibacterial coating
  • the thickness is 70 ⁇ m. Use a spatula to scrape off the excess paint. After squeezing, make sure that the thickness of the antibacterial coating is uniform. Dry the facing paper coated with adhesive glue and antibacterial coating for the second time to ensure the oven temperature. The curing degree of the adhesive glue and antibacterial coating on the facing paper after the second drying is about 90%.
  • the drying conditions for the second drying are: drying at 150°C for 1 min.
  • the coating thickness of the adhesive glue is 30 ⁇ m
  • the thickness of the embedding layer formed after molding is about 20 ⁇ m
  • the coating thickness of the antibacterial coating is 70 ⁇ m
  • the thickness of the nano antibacterial layer formed after molding is about 50 ⁇ m.
  • A first mix the unsaturated polyester resin, curing agent, coupling agent, filler, styrene, auxiliary agent, and glass fiber to make a resin paste;
  • the sheet molding compound specifically includes the following raw materials in parts by weight:
  • Compression and solidification molding Lay the sheet molding compound into the mold first, the laying area of the sheet molding compound is 90% of the orthographic projection area of the final wallboard, and then the pre-cured veneer in step 4)
  • the paper is laid on the sheet molding compound in the mold and is integrally molded.
  • the cavity is on the top, the core is on the bottom, the facing paper is close to the cavity, and the sheet molding compound is close to the core to prevent the sheet molding compound from being at high temperature.
  • the layer is formed by the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper.
  • the side of the decorative paper away from the substrate is formed by curing.
  • the nano antibacterial layer formed after the antibacterial coating is cured.
  • the molding conditions in the compression curing molding are cavity 155°C, core 145°C, pressure holding time 180s, compression molding cycle 240s/piece, and laying area 90%.
  • the molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard.
  • This embodiment provides a method for preparing the nano antibacterial wallboard in embodiment 1, which includes the following steps:
  • Adhesive glue preparation add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the rubber bucket according to the following proportions, stir at room temperature for 20 minutes, rotate speed 400r/min, and stir evenly before use.
  • Antibacterial coating preparation add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber barrel in the following proportions, stir at room temperature for 20 minutes, and rotate at 400r/min , Stir well and set aside.
  • step 3 Coating and pre-curing of adhesive glue: add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the adhesive glue
  • the thickness of the glue layer is 20 ⁇ m. Use a spatula to scrape off the excess glue. After scraping, make sure that the thickness of the adhesive glue is uniform. Dry the facing paper coated with the adhesive glue for the first time; after the first drying, The adhesive glue is not completely cured; the drying conditions for the first drying are: drying at 120°C for 2 minutes.
  • Coating and pre-curing of the antibacterial coating add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, and control the coating of the antibacterial coating
  • the thickness is 50 ⁇ m. Use a scraper to scrape off the excess paint. After squeezing, make sure that the thickness of the antibacterial coating is even and consistent. Dry the facing paper coated with adhesive glue and antibacterial coating for the second time to ensure the oven temperature to ensure The curing degree of the adhesive glue and antibacterial coating on the facing paper after the second drying is about 80%.
  • the drying conditions for the second drying are: drying at 135°C for 2 minutes.
  • the coating thickness of the adhesive glue is 20 ⁇ m
  • the thickness of the embedding layer formed after molding is about 10 ⁇ m
  • the coating thickness of the antibacterial coating is 50 ⁇ m
  • the thickness of the nano antibacterial layer formed after molding is about 30 ⁇ m.
  • A first mix the unsaturated polyester resin, curing agent, coupling agent, filler, styrene, auxiliary agent, and glass fiber to make a resin paste;
  • the sheet molding compound specifically includes the following raw materials in parts by weight:
  • Step 6) Compression and solidification molding: Lay the sheet molding compound into the mold first, the substrate is sheet molding compound, and the laying area of the sheet molding compound is 70% of the orthographic projection area of the final wallboard, and then step 4)
  • the pre-cured decorative paper is laid on the sheet molding compound in the mold, and is integrally molded; during the molding process, the cavity is on the top, the core is down, the facing paper is close to the cavity, and the sheet molding compound is close to the core to prevent Due to the flow of sheet molding compound at high temperature, the decorative paper is stretched and the decorative pattern is deformed to avoid the wrinkles of the decorative paper; after molding, the nano antibacterial wallboard with the decorative paper attached to the surface of the substrate is obtained, between the substrate and the decorative paper It has an embedding layer, which is formed by the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper.
  • the decorative paper The side away from the substrate has a nano antibacterial layer formed by cu
  • step 5 of the present embodiment the molding conditions in the compression curing molding are cavity 135°C, core 125°C, pressure holding time 80s, compression molding cycle is 140s/piece, and the laying area is 70%.
  • the molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard.
  • the wallboard product in this comparative example is a product obtained by coating ordinary glue on both sides of the facing paper and molding with sheet molding compound.
  • Ordinary glue is: o-phthalic unsaturated polyester resin glue (Huake HS-902 series).
  • the preparation method is similar to that in Example 2.
  • the wallboard products prepared in Examples 2, 3, 4 and Comparative Example 1 were tested for peeling resistance, antibacterial rate, abrasion, and chemical corrosion resistance. Among them, the peeling resistance, antibacterial rate, and chemical corrosion resistance were in accordance with G The test is carried out according to the method specified in B/T13095-2008, and the antibacterial rate is tested according to the method specified in Appendix B of QB/T 2591-2003. The test results are as follows:
  • Table 1 shows that the wallboard products prepared by the methods of Examples 2-4 are significantly better than those prepared by using traditional glue in Comparative Example 1 in terms of peel resistance, antibacterial rate, abrasion resistance, and chemical corrosion resistance. Wallboard products.
  • the preparation method of the nano antibacterial wallboard in Example 2-4 is by coating adhesive glue on one side of the facing paper and antibacterial paint on the other side.
  • the adhesive glue is similar to the substrate and adopts a pre-curing method.
  • the adhesive glue and antibacterial coating will not be completely cured before molding, so that the bonding between the decorative paper and the substrate after molding is more firm and reliable; the adhesive glue and antibacterial coating are both coated on the decorative paper,
  • the decorative paper can be fully wetted, and the fully wetted decorative paper can better fit when molded with the sheet molding compound. In the molding process, the decorative paper can be prevented from being torn, and the problem is improved.
  • the yield rate guarantees the quality of the final wallboard products.
  • the nano antibacterial wallboard prepared in Example 2-4 has an adhesive glue similar to the composition of the substrate between the facing paper and the substrate, which not only makes the curing conditions the same, the preparation process is easy to control, but also makes the substrate and the facing paper easy to control.
  • the combination between the two is more firm and reliable.

Abstract

Disclosed are a preparation method for a nano antibacterial wallboard, and a nano antibacterial wallboard. The preparation method comprises the following steps: 1) respectively preparing bonding glue and an antibacterial coating, coating the bonding glue on one side of facing paper, coating the antibacterial coating on the other side of the facing paper, and drying the facing paper; and 2) laying sheet molding plastic into a mold, laying the dried facing paper on the sheet molding plastic in the mold, then performing integral compression molding, and after compression molding, obtaining a wallboard, a base plate of which has the facing paper attached to a surface thereof, wherein the antibacterial coating, the bonding glue and the sheet molding plastic all comprise the following raw material components: an unsaturated polyester resin, a curing agent, a filler and a cross-linking agent; and the antibacterial coating further comprises nano oxide. In the wallboard prepared by using the preparation method for a nano antibacterial wallboard in the present invention, the combination of the facing paper and the base plate is firmer and more reliable, and the wallboard can resist bacteria and corrosion.

Description

纳米抗菌墙板的制备方法及纳米抗菌墙板Preparation method of nano antibacterial wallboard and nano antibacterial wallboard 技术领域Technical field
本发明涉及家装建材技术领域，具体涉及纳米抗菌墙板的制备方法以及一种纳米抗菌墙板。The invention relates to the technical field of home improvement building materials, in particular to a preparation method of a nano antibacterial wallboard and a nano antibacterial wallboard.
背景技术Background technique
目前装饰材料大多以木质基材加饰面纸或者油漆饰面复合，而整体浴室作为新兴行业，采用复合材料来替代木质基材、大理石等，现有的整体浴室用SMC墙板，整体浴室的装饰板使用SMC压合，装饰板的正面和反面的颜色一样且为SMC材料的颜色，颜色单一，尚且无法做出和墙面一样色彩鲜艳的彩色装饰板。At present, most decorative materials are composited with wooden substrates and decorative papers or paint finishes. As a new industry, the overall bathroom uses composite materials to replace wooden substrates, marble, etc. The existing overall bathroom uses SMC wall panels, and the overall bathroom The decorative board is pressed by SMC. The front and back of the decorative board have the same color and the color of the SMC material. The color is single, and it is impossible to make a colorful decorative board as bright as the wall.
为了解决这样的问题，如中国专利申请号：201610058925.0，专利名称为：整体浴室用墙板及其制备方法的发明专利，公开了一种在片状模塑料得到的模压板上复合薄铝板，使得制备得到的墙板颜色可选、耐老化。但是这样的产品不耐剥离，表面不耐磨、不耐腐蚀，且不能抗菌防腐。In order to solve such problems, for example, the Chinese patent application number: 201610058925.0, the patent name is: the invention patent of integral bathroom wallboard and its preparation method, discloses a composite thin aluminum plate on a molded plate obtained from a sheet molding compound, so that The prepared wallboard has optional colors and is resistant to aging. However, such products are not resistant to peeling, the surface is not wear-resistant, corrosion-resistant, and cannot be anti-bacterial and anti-corrosion.
发明内容Summary of the invention
有鉴于此，为了克服现有技术的缺陷，本发明的目的是提供一种纳米抗菌墙板的制备方法以及纳米抗菌墙板，该墙板的饰面纸与基板结合强度高，且饰面纸表面具有纳米抗菌层，能够抗菌防霉和耐化学试剂、耐磨。In view of this, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a preparation method of nano antibacterial wallboard and nano antibacterial wallboard. The decorative paper of the wallboard has high bonding strength with the substrate, and the decorative paper The surface has a nano antibacterial layer, which can be antibacterial, mildew, chemical resistant, and wear resistant.
为了达到上述目的，本发明采用以下的技术方案：In order to achieve the above objective, the present invention adopts the following technical solutions:
一种纳米抗菌墙板的制备方法，包括以下步骤：A preparation method of nano antibacterial wallboard includes the following steps:
1)分别配制粘合胶水和抗菌涂料，将所述粘合胶水涂覆至饰面纸的一侧，将所述抗菌涂料涂覆至所述饰面纸的另一侧，对所述饰面纸进行干燥，干燥结束后所述饰面纸上的粘合胶水和抗菌涂料的固化程度均为80-90％；1) Prepare adhesive glue and antibacterial coating separately, apply the adhesive glue to one side of the facing paper, apply the antibacterial coating to the other side of the facing paper, and apply the adhesive glue to the other side of the facing paper. The paper is dried, and the curing degree of the adhesive glue and the antibacterial coating on the facing paper is 80-90% after the drying;
2)将片状模塑料铺设至模具内，所述片状模塑料的铺设面积为最终制得的纳米抗菌墙板正投影面积的70％-90％，再将经干燥后的饰面纸铺设在模具内的片状模塑料上，使得粘合胶水位于所述饰面纸与片状模塑料之间，之后一体模压成型；模压后得到基板表面附着有饰面纸的墙板，所述基板与所述饰面纸之间具有嵌接层，所述嵌接层由浸润至所述饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及所述片状模塑料靠近所述饰面纸的一侧固化后形成，所述 饰面纸远离所述基板的一侧具有由所述抗菌涂料固化后形成的纳米抗菌层；2) Lay the sheet molding compound into the mold, the laying area of the sheet molding compound is 70%-90% of the orthographic projection area of the final nano antibacterial wallboard, and then lay the dried facing paper On the sheet molding compound in the mold, the adhesive glue is located between the facing paper and the sheet molding compound, and then integrally molded; after molding, a wallboard with facing paper attached to the surface of the substrate is obtained. There is an embedding layer between the decorative paper and the embedding layer. The embedding layer is composed of the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the sheet molding compound It is formed after curing on the side close to the decorative paper, and the side of the decorative paper away from the substrate has a nano antibacterial layer formed by curing the antibacterial coating;
所述抗菌涂料、粘合胶水与片状模塑料均包括如下成分的原料：不饱和聚酯树脂、固化剂、填料和交联剂，所述抗菌涂料还包括纳米氧化物。The antibacterial coating, adhesive glue and sheet molding compound all include the following raw materials: unsaturated polyester resin, curing agent, filler and crosslinking agent, and the antibacterial coating also includes nano oxide.
根据本发明的一些优选方面，所述粘合胶水中不饱和聚酯树脂的质量百分比大于所述基板中不饱和聚酯树脂的质量百分比；所述粘合胶水中填料的质量百分比小于所述基板中填料的质量百分比。According to some preferred aspects of the present invention, the mass percentage of unsaturated polyester resin in the adhesive glue is greater than the mass percentage of unsaturated polyester resin in the substrate; the mass percentage of filler in the adhesive glue is smaller than the substrate The mass percentage of the filler.
优选地，所述粘合胶水中不饱和聚酯树脂的质量百分比为35-50％，所述粘合胶水中填料的质量百分比为15-25％；所述基板中不饱和聚酯树脂的质量百分比为15-40％，所述基板中填料的质量百分比为40％-60％。Preferably, the mass percentage of the unsaturated polyester resin in the adhesive glue is 35-50%, and the mass percentage of the filler in the adhesive glue is 15-25%; the mass percentage of the unsaturated polyester resin in the substrate The percentage is 15-40%, and the mass percentage of the filler in the substrate is 40%-60%.
更加优选地，所述粘合胶水包括如下重量份的原料：More preferably, the adhesive glue includes the following parts by weight of raw materials:
Figure PCTCN2020123208-appb-000001
Figure PCTCN2020123208-appb-000001
优选地，所述粘合胶水的制备包括如下步骤：将不饱和聚酯树脂、固化剂、偶联剂、填料和交联剂苯乙烯按比例加入胶桶中，室温下搅拌20-30min，转速300-400r/min，搅拌均匀后得到粘合胶水。Preferably, the preparation of the adhesive glue includes the following steps: adding unsaturated polyester resin, curing agent, coupling agent, filler, and crosslinking agent styrene into a rubber tank in proportion, stirring at room temperature for 20-30 minutes, and rotating speed 300-400r/min, the adhesive glue will be obtained after stirring evenly.
根据本发明的一些优选方面，片状模塑料包括如下重量份原料：According to some preferred aspects of the present invention, the sheet molding compound includes the following parts by weight of raw materials:
Figure PCTCN2020123208-appb-000002
Figure PCTCN2020123208-appb-000002
采用与片状模塑料成分相近的粘合胶水，使得在将其与片状模塑料模压时，片状模塑料能够与粘合胶水发生交联反应，产生融合，形成一体化制品，饰面纸与基板的结合更加牢固。Adopting adhesive glue with similar composition to the sheet molding compound, so that when it is molded with the sheet molding compound, the sheet molding compound can cross-link with the adhesive glue to produce a fusion to form an integrated product, facing paper The combination with the substrate is stronger.
根据本发明的一些优选方面，所述抗菌涂料包括如下成分的原料：不饱和聚酯树脂、固化剂、偶联剂、填料、交联剂苯乙烯、纳米氧化物和脱模剂。所 述纳米氧化物为纳米二氧化硅或二氧化钛等。According to some preferred aspects of the present invention, the antibacterial coating includes raw materials of the following ingredients: unsaturated polyester resin, curing agent, coupling agent, filler, cross-linking agent styrene, nano oxide and mold release agent. The nano-oxide is nano-silica or titanium dioxide.
具体的，在一些实施例中，所述抗菌涂料包括如下重量份的原料：Specifically, in some embodiments, the antibacterial coating includes the following raw materials in parts by weight:
Figure PCTCN2020123208-appb-000003
Figure PCTCN2020123208-appb-000003
优选地，所述抗菌涂料的制备包括如下步骤：将不饱和聚酯树脂、固化剂、偶联剂、填料、纳米二氧化硅、脱模剂和交联剂苯乙烯按比例加入胶桶中，室温下搅拌40-60min，转速300-400r/min，搅拌均匀后得到抗菌涂料。Preferably, the preparation of the antibacterial coating includes the following steps: adding unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and crosslinking agent styrene into the rubber barrel in proportion, Stir at room temperature for 40-60min, rotate speed 300-400r/min, and obtain antibacterial coating after evenly stirring.
以上原料中的固化剂包括过氧化苯甲酸叔丁酯(TBPB)和/或过氧化苯甲酰，具体的，所述固化剂为过氧化(2-乙基己酸)叔丁酯、过氧化甲乙酮、过氧化苯甲酸叔丁酯、过氧化二苯甲酰、过氧化二碳酸二(4-叔丁基)环己酯、过氧化二月桂酰或脂肪多元胺等中的一种或多种组合；The curing agent in the above raw materials includes tert-butyl peroxybenzoate (TBPB) and/or benzoyl peroxide. Specifically, the curing agent is tert-butyl peroxide (2-ethylhexanoic acid), peroxide One or more of methyl ethyl ketone, tert-butyl peroxybenzoate, dibenzoyl peroxide, bis(4-tert-butyl)cyclohexyl peroxide, dilauroyl peroxide or fatty polyamine, etc. combination;
所述偶联剂为硅烷偶联剂和/或钛酸酯；具体的，所述硅烷偶联剂为γ-(甲基丙烯酰氧基丙基)三甲氧基硅烷、γ-(2，3-环氧丙氧)丙基三甲氧基硅烷、N-β(氨乙基)-γ-氨丙基甲基二甲氧基硅烷、N-(β-氨乙基)-γ-氨丙基三乙氧基硅烷、N-β(氨乙基)-γ-氨丙基三甲氧基硅烷、苯胺甲基三乙氧基硅烷、γ-氨丙基三乙氧基硅烷、乙烯基三乙氧基硅烷、乙烯基三甲氧基硅烷和γ-氯丙基三乙氧基硅烷等中的一种或多种组合。The coupling agent is a silane coupling agent and/or titanate; specifically, the silane coupling agent is γ-(methacryloxypropyl)trimethoxysilane, γ-(2,3) -Glycidoxy)propyltrimethoxysilane, N-β(aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-(β-aminoethyl)-γ-aminopropyl Triethoxysilane, N-β(aminoethyl)-γ-aminopropyltrimethoxysilane, aniline methyltriethoxysilane, γ-aminopropyltriethoxysilane, vinyl triethoxy One or more combinations of hydroxysilane, vinyltrimethoxysilane, γ-chloropropyltriethoxysilane, and the like.
在一些实施例中，片状模塑料中使用的不饱和树脂为邻苯、间苯、或环氧乙烯基酯不饱和树脂，且分子中含有适量的羧基以利增稠；采用的固化剂为氧化苯甲酸叔丁酯或过氧化(2-乙基已酸)叔丁酯，或者为氧化苯甲酸叔丁酯与过氧化2-乙基已酸叔丁酯按质量比(0.7-0.8)：(0.3-0.2)组成的复合固化剂体系。In some embodiments, the unsaturated resin used in the sheet molding compound is ortho-benzene, iso-benzene, or epoxy vinyl ester unsaturated resin, and the molecule contains an appropriate amount of carboxyl groups to facilitate thickening; the curing agent used is Tert-butyl oxybenzoate or tert-butyl peroxide (2-ethylhexanoate), or tert-butyl oxybenzoate and tert-butyl peroxide 2-ethylhexanoate according to the mass ratio (0.7-0.8): (0.3-0.2) composite curing agent system.
以上所述交联剂为苯乙烯；所述填料为粒径小于或等于10μm的氢氧化铝微粉或粒径小于或等于10μm的碳酸钙微粉或者二者的混合物，所述脱模剂为硬脂酸锌和/或硬脂酸钙。The above-mentioned crosslinking agent is styrene; the filler is aluminum hydroxide powder with a particle size less than or equal to 10 μm or calcium carbonate powder with a particle size less than or equal to 10 μm or a mixture of the two, and the release agent is stearin Zinc acid and/or calcium stearate.
在一些实施例中，所述不饱和聚酯树脂的粘度为1100-1400mPa.s(23℃)； 所述粘合胶水的粘度为1000-1300mPa.s(23℃)；所述抗菌涂料的粘度为1200-1500mPa.s(23℃)。In some embodiments, the viscosity of the unsaturated polyester resin is 1100-1400mPa.s (23°C); the viscosity of the adhesive glue is 1000-1300mPa.s (23°C); the viscosity of the antibacterial coating It is 1200-1500mPa.s (23°C).
具体的，在一些实施例中纳米抗菌墙板的制备方法包括以下步骤：Specifically, in some embodiments, the preparation method of the nano antibacterial wallboard includes the following steps:
1)粘合胶水配制：将不饱和聚酯树脂、固化剂、偶联剂、填料和苯乙烯按如下比例加入胶桶中，搅拌均匀后备用；1) Adhesive glue preparation: add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the glue bucket according to the following proportions, stir well and set aside;
Figure PCTCN2020123208-appb-000004
Figure PCTCN2020123208-appb-000004
2)抗菌涂料配制：将不饱和聚酯树脂、固化剂、偶联剂、填料、纳米二氧化硅、脱模剂和苯乙烯按如下比例加入胶桶中，搅拌均匀后备用；2) Antibacterial coating preparation: Add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber bucket according to the following proportions, stir well and then set aside;
Figure PCTCN2020123208-appb-000005
Figure PCTCN2020123208-appb-000005
3)粘合胶水的涂覆和预固化：将步骤1)中配制的粘合胶水加入到胶槽中，将粘合胶水涂覆至饰面纸的一侧，调整设备，控制胶层厚度，用刮刀将多余的胶水刮走，刮平整后，确保粘合胶水的厚度均匀一致，将涂覆有粘合胶水的饰面纸进行第一次干燥；第一次干燥之后，粘合胶水未完全固化；3) Coating and pre-curing of adhesive glue: Add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the thickness of the glue layer. Scrape the excess glue away with a spatula. After smoothing, make sure that the thickness of the adhesive glue is even and consistent. Dry the facing paper coated with adhesive glue for the first time; after the first drying, the adhesive glue is not complete Curing
4)抗菌涂料的涂覆和预固化：将步骤2)中配制的抗菌涂料加入到另一胶槽中，将抗菌涂料涂覆至饰面纸的另一侧，调整设备，控制涂料厚度，用刮刀将多余的涂料刮走，刮平整后，确保抗菌涂料的厚度均匀一致，将涂覆有粘合胶水和抗菌涂料的饰面纸进行第二次干燥，保证烘箱温度，以确保第二次干燥后饰面纸上的粘合胶水和抗菌涂料的固化程度在80-90％左右；粘合胶水不完全固化，且粘合胶水与基板的成分接近，不仅使得固化条件相同、制备工艺易于控制，且使得在模压的时候，粘合胶水与片状模塑料之间能够发生交联反应，产生融合，形成一体化制品，使得饰面纸与基板的结合更加牢固；4) Coating and pre-curing of the antibacterial coating: add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, control the thickness of the coating, and use The squeegee scrapes the excess paint away. After it is leveled, the thickness of the antibacterial coating is ensured to be uniform. The facing paper coated with adhesive glue and antibacterial coating is dried for the second time, and the oven temperature is ensured to ensure the second drying. The curing degree of the adhesive glue and antibacterial coating on the back facing paper is about 80-90%; the adhesive glue is not completely cured, and the composition of the adhesive glue is close to the substrate, which not only makes the curing conditions the same, and the preparation process is easy to control, In addition, during molding, a cross-linking reaction can occur between the adhesive glue and the sheet molding compound, resulting in fusion, forming an integrated product, and making the bonding of the decorative paper and the substrate stronger;
5)片状模塑料的制备：5) Preparation of sheet molding compound:
A.先按照如下组分将不饱和聚酯树脂、固化剂、偶联剂、填料、苯乙烯和助剂等混合制成树脂糊；A. First mix the unsaturated polyester resin, curing agent, coupling agent, filler, styrene and auxiliary agents according to the following components to make a resin paste;
Figure PCTCN2020123208-appb-000006
Figure PCTCN2020123208-appb-000006
B.通过刮刀，将混合均匀的树脂糊均匀涂敷在PE膜上；再通过调节切割器，切割玻璃纤维，控制玻璃纤维的长度和含量；将PE膜相对粘贴，形成一种上、下均覆有PE膜的片材，再将片材通过压实机压挤，使玻璃纤维与树脂充分浸渍，成型为片材，然后进行收卷；B. Use a scraper to evenly coat the mixed resin paste on the PE film; then adjust the cutter to cut the glass fiber to control the length and content of the glass fiber; paste the PE film relative to each other to form a top and bottom uniform The PE film-covered sheet is then squeezed through a compactor to fully impregnate the glass fiber and resin to form a sheet, and then rewind;
C.将收卷的片材运到增稠室增稠，增稠室的温度设置为45℃，增稠时间为24h，得到片状模塑料；C. Transport the rolled sheet to the thickening chamber for thickening. The temperature of the thickening chamber is set to 45°C and the thickening time is 24h to obtain sheet molding compound;
6)模压固化成型：先将步骤5)中制备的片状模塑料铺设至模具内，片状模塑料的铺设面积为最终制得的墙板正投影面积的70％-90％，再将步骤4)中经第二次干燥后的饰面纸铺设在模具内的片状模塑料上，一体模压成型；模压过程中型腔在上、型芯在下，饰面纸靠近型腔，片状模塑料靠近型芯，防止因片状模塑料在高温下流动而使饰面纸拉伸导致装饰花纹变形，避免饰面纸褶皱；模压后得到基板表面附着有饰面纸的墙板，所述基板与所述饰面纸之间具有嵌接层，所述嵌接层由浸润至所述饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及所述片状模塑料靠近所述饰面纸的一侧固化后形成，所述饰面纸远离所述基板的一侧具有由抗菌涂料固化后形成的纳米抗菌层。通过上述方法制备得到的墙板在保证成本的同时能够大幅提高墙板的外观、饰面纸的柔韧性、稳定性以及耐化学试剂、耐磨等各种综合性能，剥离强度高且具有抗菌功能。6) Compression and solidification molding: First, lay the sheet molding compound prepared in step 5) into the mold. The laying area of the sheet molding compound is 70%-90% of the orthographic projection area of the final wallboard, and then the step 4) The decorative paper after the second drying is laid on the sheet molding compound in the mold, and integrally molded; during the molding process, the cavity is on the top, the core is down, the decorative paper is close to the cavity, and the sheet molding compound It is close to the core to prevent the decorative pattern from being stretched due to the flow of the sheet molding compound at high temperatures, and to prevent the decorative paper from wrinkling; after molding, the wallboard with the decorative paper attached to the surface of the substrate is obtained. There is an embedding layer between the facing paper, and the embedding layer is made up of the adhesive glue infiltrated into the facing paper, the adhesive glue between the facing paper and the substrate, and the sheet molding compound close to The decorative paper is formed after curing on one side, and the side of the decorative paper away from the substrate has a nano antibacterial layer formed by curing an antibacterial coating. The wallboard prepared by the above method can greatly improve the appearance of the wallboard, the flexibility and stability of the facing paper, the resistance to chemical reagents, abrasion resistance and other comprehensive properties while ensuring the cost. It has high peel strength and antibacterial function. .
以上为了便于叙述和方便理解，特将步骤进行了区分和编号，实际制备时，以上几个步骤如粘合胶水的制备以及涂覆和预固化、抗菌涂料的制备以及涂覆和预固化、片状模塑料的制备等可以同时进行或无先后顺序的进行。In order to facilitate the description and understanding, the steps are distinguished and numbered. In actual preparation, the above steps include the preparation of adhesive glue and coating and pre-curing, the preparation of antibacterial coatings, and the coating and pre-curing, sheet The preparation of the molding compound can be carried out simultaneously or in no order.
采取在饰面纸的一侧涂覆胶水、另一侧涂覆涂料的方法，即将位于饰面纸 与基板之间的粘合胶水涂覆在饰面纸而非基板上，保证饰面纸能够充分润湿，充分润湿后的饰面纸在与片状模塑料模压的时候能够更好地贴合，在模压中能够避免饰面纸被撕开的不良情况，进一步保证饰面纸与基板的结合强度。Adopt the method of coating glue on one side of the facing paper and coating on the other side, that is, coating the adhesive glue between the facing paper and the substrate on the facing paper instead of the substrate to ensure that the facing paper can Fully moistened, the fully moistened facing paper can better fit with the sheet molding compound when it is molded, which can avoid the undesirable situation of the facing paper being torn during the molding, and further ensure the facing paper and the substrate The bonding strength.
优选地，步骤3)粘合胶水预固化中所述第一次干燥的干燥条件为：120-130℃下干燥1-2min；步骤4)抗菌涂料预固化中所述第二次干燥的干燥条件为：135-150℃下干燥1-2min。Preferably, the drying conditions for the first drying in step 3) the pre-curing of the adhesive glue are: drying at 120-130°C for 1-2 min; the drying conditions for the second drying in step 4) the pre-curing of the antibacterial coating It is: drying at 135-150℃ for 1-2min.
在一些实施例中，所述粘合胶水的涂覆厚度为20-30μm，固化、模压后形成的嵌接层的厚度为10-20μm；所述抗菌涂料的涂覆厚度为50-70μm，固化、模压后形成的纳米抗菌层的厚度为30-50μm。In some embodiments, the coating thickness of the adhesive glue is 20-30 μm, the thickness of the embedded layer formed after curing and molding is 10-20 μm; the coating thickness of the antibacterial coating is 50-70 μm, and the curing The thickness of the nano antibacterial layer formed after molding is 30-50μm.
优选地，步骤6)模压固化成型中所述模压条件为型腔温度135-155℃，型芯温度125-145℃，保压时间80-180s，模压成型周期为140-240s/件。模压成型周期为开始放入片状模塑料和饰面纸进行模压到取出模压成型得到的墙板之间的时间间隔。模压成型周期过慢会导致制品表面出现预固化斑，有时会产生缺料等缺陷，随着模压成型周期的延长，片状模塑料(SMC)在模具内流动速度加快，产品质量有先增加后降低的趋势，说明模压成型周期过长会导致片料流动快，空气不易排出导致局部褶皱等缺陷。模压温度低会导致制品表面出现固化不良，并导致表面剥离性异常；随着模压温度的提高，样品外观质量有先增加后降低的趋势，说明一体模压成型需要较高的反应温度；铺设面积过大会导致制品表面排气不畅，有发白的微孔产生，铺设面积过小会导致彩纸冲破及褶皱等现象。Preferably, the molding conditions in step 6) compression curing molding are cavity temperature of 135-155°C, core temperature of 125-145°C, pressure holding time of 80-180s, and compression molding cycle of 140-240s/piece. The molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard. Too slow molding cycle will cause pre-cured spots on the surface of the product, and sometimes defects such as material shortage. With the extension of the molding cycle, the flow rate of sheet molding compound (SMC) in the mold will increase, and the quality of the product will increase first. The decreasing trend indicates that the molding cycle is too long, which will cause the sheet material to flow quickly, and the air is not easy to discharge, leading to defects such as local wrinkles. Low molding temperature will lead to poor curing on the surface of the product and abnormal surface peelability; as the molding temperature increases, the appearance quality of the sample increases first and then decreases, indicating that the integral molding requires a higher reaction temperature; the laying area is too high The conference will cause poor exhaust on the surface of the product, and whitish micropores. If the laying area is too small, it will cause the colored paper to break and wrinkle.
本发明提供的一种纳米抗菌墙板，包括基板以及与其复合的饰面纸，所述基板由片状模塑料模压固化后形成，所述基板与所述饰面纸之间具有嵌接层，所述嵌接层由浸润至所述饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及所述片状模塑料靠近所述饰面纸的一侧固化后形成，所述饰面纸远离所述基板的一侧具有纳米抗菌层，所述纳米抗菌层由抗菌涂料固化后形成；所述纳米抗菌墙板由所述片状模塑料、粘合胶水、饰面纸和抗菌涂料一体模压成型；所述抗菌涂料、粘合胶水与片状模塑料均包括如下成分的原料：不饱和聚酯树脂、固化剂、填料和交联剂，所述抗菌涂料还包括纳米氧化物。所述纳米抗菌墙板由所述片状模塑料、粘合胶水、饰面纸和抗菌涂料一体模压固化成型。The present invention provides a nano antibacterial wallboard, comprising a substrate and a facing paper composited with the substrate, the substrate is formed by molding and curing sheet molding compound, and an embedding layer is provided between the substrate and the facing paper, The embedding layer is formed by curing the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper, The side of the facing paper away from the substrate has a nano antibacterial layer, the nano antibacterial layer is formed by curing an antibacterial coating; the nano antibacterial wallboard is made of the sheet molding compound, adhesive glue, and facing paper The antibacterial coating is integrally molded and molded; the antibacterial coating, adhesive glue and sheet molding compound all include the following raw materials: unsaturated polyester resin, curing agent, filler and crosslinking agent, the antibacterial coating also includes nano oxide Things. The nano antibacterial wallboard is integrally molded and cured by the sheet molding compound, adhesive glue, facing paper and antibacterial paint.
粘合胶水采用与基板材质类似的原料成分，不仅使得固化条件相同、制备工艺易于控制，且在模压的时候可与片状模塑料部分融合，使得基板与饰面纸 的结合强度高，剥离强度高；纳米抗菌层不仅能够保护饰面纸，防止饰面纸损坏，使得墙板能够防霉、耐磨、耐化学试剂，延长墙板的使用寿命，更具有抗菌的效果。Adhesive glue uses raw materials similar to the substrate material, which not only makes the curing conditions the same and the preparation process is easy to control, but also can be partially fused with the sheet molding compound during molding, so that the substrate and the facing paper have high bonding strength and peel strength High; the nano antibacterial layer can not only protect the facing paper, prevent the facing paper from being damaged, make the wallboard resistant to mildew, abrasion, and chemical reagents, extend the service life of the wallboard, and have an antibacterial effect.
相较于现有技术，本发明的有益之处在于：本发明中纳米抗菌墙板的制备方法通过在饰面纸的一侧涂覆粘合胶水、另一侧涂覆抗菌涂料，粘合胶水与基板的成分类似，且采用预固化的方式使得粘合胶水和抗菌涂料在模压之前不会完全固化，在模压时，粘合胶水、抗菌涂料和片状模塑料一起固化成型，不仅使得制备工艺易于控制，且使得模压后饰面纸与基板之间的结合更加牢固可靠；采取将粘合胶水和抗菌涂料都涂覆在饰面纸上的方式，使得饰面纸能够充分润湿，充分润湿后的饰面纸在与片状模塑料模压的时候能够更好地贴合，在模压中能够避免饰面纸被撕开的不良情况，提高了良品率，保证了最终墙板制品的质量。本发明的纳米抗菌墙板，在饰面纸与基板之间具有与基板成分类似的粘合胶水，使得基板与饰面纸之间的结合更加牢固可靠，在饰面纸远离基板的一侧还具有纳米抗菌层，不仅能够防止饰面纸损坏，延长墙板的使用寿命，且具有抗菌防霉的作用，使得墙板能够耐磨、耐化学试剂。Compared with the prior art, the advantage of the present invention is that the preparation method of the nano antibacterial wallboard of the present invention is by coating adhesive glue on one side of the facing paper and coating antibacterial paint on the other side. The composition is similar to the substrate, and the pre-curing method makes the adhesive glue and antibacterial coating not fully cured before molding. During molding, the adhesive glue, antibacterial coating and sheet molding compound are cured together, which not only makes the preparation process It is easy to control, and makes the bonding between the decorative paper and the substrate more firm and reliable after molding; the adhesive glue and antibacterial coating are applied to the decorative paper so that the decorative paper can be fully wetted and fully moisturized The wet veneer paper can better fit with the sheet molding compound when it is molded, which can avoid the undesirable situation of the veneer paper being torn during the molding process, improve the yield rate, and ensure the quality of the final wallboard product . The nano antibacterial wallboard of the present invention has an adhesive glue similar to the composition of the substrate between the decorative paper and the substrate, so that the combination between the substrate and the decorative paper is firmer and more reliable. With a nano antibacterial layer, it can not only prevent damage to the decorative paper and prolong the service life of the wallboard, but also has the effect of antibacterial and mildew resistance, making the wallboard resistant to wear and chemical agents.
具体实施方式Detailed ways
为了使本技术领域的人员更好地理解本发明的技术方案，下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention. Not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
实施例1 纳米抗菌墙板Example 1 Nano antibacterial wallboard
本实施例中的纳米抗菌墙板，包括基板以及与其复合的饰面纸，基板为片状模塑料固化后形成，基板与饰面纸之间具有嵌接层，饰面纸远离基板的一侧具有纳米抗菌层。嵌接层由浸润至饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及片状模塑料靠近饰面纸的一侧固化后形成，纳米抗菌层由抗菌涂料固化后形成。纳米抗菌墙板由片状模塑料、粘合胶水、饰面纸和抗菌涂料一体模压成型。The nano antibacterial wallboard in this embodiment includes a substrate and a decorative paper compounded with the substrate. The substrate is formed by curing a sheet molding compound. There is an embedded layer between the substrate and the decorative paper, and the decorative paper is away from the side of the substrate. With nano antibacterial layer. The embedding layer is formed by curing the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper. The nano antibacterial layer is cured by the antibacterial coating form. The nano antibacterial wallboard is integrally molded by sheet molding compound, adhesive glue, facing paper and antibacterial coating.
粘合胶水与基板均包括如下成分的原料：不饱和聚酯树脂、固化剂、偶联剂、填料和苯乙烯。粘合胶水采用与基板材质类似的原料成分，不仅使得固化条件相同、制备工艺易于控制，且在模压的时候粘合胶水可与片状模塑料部分 融合，使得最终产品的基板与饰面纸的结合强度高，剥离强度高。Both the adhesive glue and the substrate include the following raw materials: unsaturated polyester resin, curing agent, coupling agent, filler and styrene. Adhesive glue uses raw materials similar to the substrate material, which not only makes the curing conditions the same, and the preparation process is easy to control, but also the adhesive glue can be partially fused with the sheet molding compound during molding, so that the final product substrate and the facing paper High bonding strength and high peel strength.
抗菌涂料具有纳米氧化物成分如纳米二氧化硅，由抗菌涂料固化后形成的纳米抗菌层不仅能够保护饰面纸，防止饰面纸损坏，延长墙板的使用寿命，使得墙板能够抗菌防霉、耐磨、耐化学试剂。The antibacterial coating has nano-oxide components such as nano-silica. The nano-antibacterial layer formed by the curing of the antibacterial coating can not only protect the decorative paper, prevent the decorative paper from being damaged, extend the service life of the wallboard, and make the wallboard antibacterial and mildew proof. , Wear and chemical reagents.
嵌接层的厚度控制在10-20μm，纳米抗菌层的厚度控制在30-50μm，以保证墙板的整体厚度。The thickness of the embedding layer is controlled within 10-20μm, and the thickness of the nano antibacterial layer is controlled within 30-50μm to ensure the overall thickness of the wallboard.
本实施例中的基板为片状模塑料，粘合胶水采用与片状模塑料成分类似的原料，使得在将片状模塑料与模压时，片状模塑料能够与粘合胶水发生交联反应，产生部分融合，形成一体化制品，饰面纸与基板的结合更加牢固稳定。The substrate in this embodiment is a sheet molding compound, and the adhesive glue uses raw materials similar to the composition of the sheet molding compound, so that when the sheet molding compound is molded with the molding compound, the sheet molding compound can cross-link with the adhesive glue. , Produce partial fusion, form an integrated product, the combination of decorative paper and substrate is more firm and stable.
实施例2 纳米抗菌墙板的制备方法Example 2 Preparation method of nano antibacterial wallboard
本实施例中提供了一种实施例1中的纳米抗菌墙板的制备方法，包括以下步骤：This embodiment provides a method for preparing the nano antibacterial wallboard in embodiment 1, which includes the following steps:
1)粘合胶水配制：将不饱和聚酯树脂、固化剂、偶联剂、填料和苯乙烯按如下比例加入胶桶中，室温下搅拌25min，转速350r/min，搅拌均匀后备用。1) Adhesive glue preparation: Add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the rubber bucket according to the following proportions, stir at room temperature for 25min, rotate speed 350r/min, and stir evenly before use.
Figure PCTCN2020123208-appb-000007
Figure PCTCN2020123208-appb-000007
2)抗菌涂料配制：将不饱和聚酯树脂、固化剂、偶联剂、填料、纳米二氧化硅、脱模剂和苯乙烯按如下比例加入胶桶中，室温下搅拌25min，转速350r/min，搅拌均匀后备用。2) Antibacterial coating preparation: add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber barrel in the following proportions, stir at room temperature for 25 minutes, and rotate at 350r/min , Stir well and set aside.
Figure PCTCN2020123208-appb-000008
Figure PCTCN2020123208-appb-000008
3)粘合胶水的涂覆和预固化：将步骤1)中配制的粘合胶水加入到胶槽中，将粘合胶水涂覆至饰面纸的一侧，调整设备，控制粘合胶水的胶层厚度25μm， 用刮刀将多余的胶水刮走，刮平整后，确保粘合胶水的厚度均匀一致，将涂覆有粘合胶水的饰面纸进行第一次干燥；第一次干燥之后，粘合胶水未完全固化；第一次干燥的干燥条件为：125℃下干燥2min。3) Coating and pre-curing of adhesive glue: add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the adhesive glue The thickness of the glue layer is 25μm. Use a spatula to scrape away the excess glue. After smoothing, make sure that the thickness of the adhesive glue is uniform. Dry the facing paper coated with the adhesive glue for the first time; after the first drying, The adhesive glue is not completely cured; the drying conditions for the first drying are: drying at 125°C for 2 minutes.
4)抗菌涂料的涂覆和预固化：将步骤2)中配制的抗菌涂料加入到另一胶槽中，将抗菌涂料涂覆至饰面纸的另一侧，调整设备，控制抗菌涂料的涂料厚度60μm，用刮刀将多余的涂料刮走，刮平整后，确保抗菌涂料的厚度均匀一致，将涂覆有粘合胶水和抗菌涂料的饰面纸进行第二次干燥，保证烘箱温度，以确保第二次干燥后饰面纸上的粘合胶水和抗菌涂料的固化程度在85％左右。第二次干燥的干燥条件为：145℃下干燥1.5min。粘合胶水不完全固化，且粘合胶水与基板的成分接近，不仅使得固化条件相同、制备工艺易于控制，且使得在模压的时候，粘合胶水与基板之间能够发生交联反应，形成一体化制品，饰面纸与基板的结合更加牢固。4) Coating and pre-curing of the antibacterial coating: add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, and control the coating of the antibacterial coating The thickness is 60μm. Use a spatula to scrape off the excess paint. After squeegee, make sure that the thickness of the antibacterial coating is even and consistent. Dry the facing paper coated with adhesive glue and antibacterial coating for the second time to ensure the oven temperature to ensure The curing degree of the adhesive glue and antibacterial coating on the facing paper after the second drying is about 85%. The drying conditions for the second drying are: drying at 145°C for 1.5 min. The adhesive glue is not completely cured, and the composition of the adhesive glue is close to that of the substrate, which not only makes the curing conditions the same, and the preparation process is easy to control, but also enables the cross-linking reaction between the adhesive glue and the substrate during molding to form a whole The combination of chemical products, facing paper and substrate is stronger.
本实施例中粘合胶水的涂覆厚度为25μm，模压后形成的嵌接层的厚度约为15μm；抗菌涂料的涂覆厚度为60μm，模压后形成的纳米抗菌层的厚度约为40μm。In this embodiment, the coating thickness of the adhesive glue is 25 μm, the thickness of the embedding layer formed after molding is about 15 μm; the coating thickness of the antibacterial coating is 60 μm, and the thickness of the nano antibacterial layer formed after molding is about 40 μm.
5)片状模塑料的制备：5) Preparation of sheet molding compound:
A.先按照如下组分将不饱和聚酯树脂、固化剂、偶联剂、填料、苯乙烯和助剂以及玻璃纤维等混合制成树脂糊；A. According to the following components, first mix the unsaturated polyester resin, curing agent, coupling agent, filler, styrene, auxiliary agent, and glass fiber to make a resin paste;
本实施例中，片状模塑料具体包括如下重量份的原料，其中E4为促进剂异辛酸钴：In this embodiment, the sheet molding compound specifically includes the following raw materials in parts by weight, where E4 is the accelerator cobalt isooctanoate:
Figure PCTCN2020123208-appb-000009
Figure PCTCN2020123208-appb-000009
B.通过刮刀，将混合均匀的树脂糊均匀涂敷在PE膜上；再通过调节切割器，切割玻璃纤维，控制玻璃纤维的长度；将PE膜相对粘贴，形成一种上、下均覆有PE膜的片材，再将片材通过压实机压挤，使玻璃纤维与树脂充分浸渍，成型 为片材，然后进行收卷；B. Use a scraper to evenly coat the mixed resin paste on the PE film; then adjust the cutter to cut the glass fiber to control the length of the glass fiber; paste the PE film relative to each other to form a coating with both top and bottom PE film sheet, then the sheet is squeezed through a compactor to fully impregnate the glass fiber with the resin, and the sheet is formed, and then the sheet is wound;
C.将收卷的片材运到增稠室增稠，增稠室的温度设置为45℃，增稠时间为24h，得到片状模塑料；C. Transport the rolled sheet to the thickening chamber for thickening. The temperature of the thickening chamber is set to 45°C and the thickening time is 24h to obtain sheet molding compound;
6)模压固化成型：先将片状模塑料铺设至模具内，片状模塑料的铺设面积为最终制得的墙板正投影面积的80％，再将步骤4)中预固化后的饰面纸铺设在模具内的片状模塑料上，一体模压成型；模压过程中型腔在上、型芯在下，饰面纸靠近型腔，片状模塑料靠近型芯，防止因片状模塑料在高温下流动而使饰面纸拉伸导致装饰花纹变形，避免饰面纸褶皱；模压后得到基板表面附着有饰面纸的纳米抗菌墙板，基板与饰面纸之间具有嵌接层，嵌接层由浸润至饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及片状模塑料靠近饰面纸的一侧固化后形成，饰面纸远离基板的一侧具有由抗菌涂料固化后形成的纳米抗菌层。6) Compression and solidification molding: Lay the sheet molding compound into the mold first, the laying area of the sheet molding compound is 80% of the orthographic projection area of the final wallboard, and then the pre-cured veneer in step 4) The paper is laid on the sheet molding compound in the mold and is integrally molded. During the molding process, the cavity is on the top, the core is on the bottom, the facing paper is close to the cavity, and the sheet molding compound is close to the core to prevent the sheet molding compound from being at high temperature. Flow down to make the decorative paper stretch to cause deformation of the decorative pattern, avoiding the wrinkles of the decorative paper; after molding, the nano antibacterial wallboard with the decorative paper attached to the surface of the substrate is obtained. There is an embedding layer between the substrate and the decorative paper, which is embedded The layer is formed by the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper. The side of the decorative paper away from the substrate is formed by curing. The nano antibacterial layer formed after the antibacterial coating is cured.
本实施例中步骤5)模压固化成型中模压条件为型腔152℃，型芯143℃，保压时间180s，模压成型周期为200s/件，铺设面积为80％。模压成型周期为开始放入片状模塑料和饰面纸进行模压到取出模压成型得到的墙板之间的时间间隔。In step 5) of the present embodiment, the molding conditions in the compression curing molding are cavity 152°C, core 143°C, pressure holding time 180s, compression molding cycle 200s/piece, and laying area 80%. The molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard.
以上材料中的不饱和聚酯树脂的粘度为1100-1400mPa.s(23℃)；氢氧化铝粉末为粒径小于等于10μm的氢氧化铝微粉。以上为了便于叙述和方便理解，特将步骤进行了区分和编号，实际制备时，以上几个步骤如粘合胶水的制备以及涂覆和预固化、抗菌涂料的制备以及涂覆和预固化、基板的制备等可以同时进行或无先后顺序的进行。The viscosity of the unsaturated polyester resin in the above materials is 1100-1400 mPa.s (23° C.); the aluminum hydroxide powder is aluminum hydroxide fine powder with a particle size of 10 μm or less. For the convenience of description and understanding, the steps are distinguished and numbered. In actual preparation, the above steps include the preparation of adhesive glue and coating and pre-curing, the preparation of antibacterial coatings and the coating and pre-curing, substrate The preparation can be carried out at the same time or in no order.
采取在饰面纸的一侧涂覆胶水、另一侧涂覆涂料的方法，使得饰面纸能够充分润湿，充分润湿后的饰面纸在与片状模塑料模压的时候能够更好地贴合，在模压中能够避免饰面纸被撕开的不良情况，能够保证饰面纸与基板的结合强度以及饰面纸表面的耐磨、耐化学腐蚀、防霉抗菌。Adopt the method of coating glue on one side of the facing paper and coating on the other side, so that the facing paper can be fully wetted, and the fully wetted facing paper can be better when molded with the sheet molding compound Ground bonding can avoid the undesirable situation of the decorative paper being torn during molding, and can ensure the bonding strength of the decorative paper and the substrate, and the surface of the decorative paper is resistant to wear, chemical corrosion, mildew and antibacterial.
实施例3 纳米抗菌墙板的制备方法Example 3 Preparation method of nano antibacterial wallboard
本实施例中提供了一种实施例1中的纳米抗菌墙板的制备方法，包括以下步骤：This embodiment provides a method for preparing the nano antibacterial wallboard in embodiment 1, which includes the following steps:
1)粘合胶水配制：将不饱和聚酯树脂、固化剂、偶联剂、填料和苯乙烯按如下比例加入胶桶中，室温下搅拌30min，转速300r/min，搅拌均匀后备用。1) Adhesive glue preparation: Add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the rubber bucket according to the following proportions, stir at room temperature for 30 minutes, rotate speed 300r/min, and stir evenly before use.
Figure PCTCN2020123208-appb-000010
Figure PCTCN2020123208-appb-000010
Figure PCTCN2020123208-appb-000011
Figure PCTCN2020123208-appb-000011
2)抗菌涂料配制：将不饱和聚酯树脂、固化剂、偶联剂、填料、纳米二氧化硅、脱模剂和苯乙烯按如下比例加入胶桶中，室温下搅拌30min，转速300r/min，搅拌均匀后备用。2) Antibacterial coating preparation: add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber barrel in the following proportions, stir at room temperature for 30 minutes, and rotate at 300r/min , Stir well and set aside.
Figure PCTCN2020123208-appb-000012
Figure PCTCN2020123208-appb-000012
3)粘合胶水的涂覆和预固化：将步骤1)中配制的粘合胶水加入到胶槽中，将粘合胶水涂覆至饰面纸的一侧，调整设备，控制粘合胶水的胶层厚度30μm，用刮刀将多余的胶水刮走，刮平整后，确保粘合胶水的厚度均匀一致，将涂覆有粘合胶水的饰面纸进行第一次干燥；第一次干燥之后，粘合胶水未完全固化；第一次干燥的干燥条件为：130℃下干燥1min。3) Coating and pre-curing of adhesive glue: add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the adhesive glue The thickness of the glue layer is 30μm. Use a spatula to scrape away the excess glue. After smoothing, make sure that the thickness of the adhesive glue is uniform. Dry the facing paper coated with the adhesive glue for the first time; after the first drying, The adhesive glue is not fully cured; the drying conditions for the first drying are: drying at 130°C for 1 min.
4)抗菌涂料的涂覆和预固化：将步骤2)中配制的抗菌涂料加入到另一胶槽中，将抗菌涂料涂覆至饰面纸的另一侧，调整设备，控制抗菌涂料的涂料厚度70μm，用刮刀将多余的涂料刮走，刮平整后，确保抗菌涂料的厚度均匀一致，将涂覆有粘合胶水和抗菌涂料的饰面纸进行第二次干燥，保证烘箱温度，以确保第二次干燥后饰面纸上的粘合胶水和抗菌涂料的固化程度在90％左右。第二次干燥的干燥条件为：150℃下干燥1min。4) Coating and pre-curing of the antibacterial coating: add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, and control the coating of the antibacterial coating The thickness is 70μm. Use a spatula to scrape off the excess paint. After squeezing, make sure that the thickness of the antibacterial coating is uniform. Dry the facing paper coated with adhesive glue and antibacterial coating for the second time to ensure the oven temperature. The curing degree of the adhesive glue and antibacterial coating on the facing paper after the second drying is about 90%. The drying conditions for the second drying are: drying at 150°C for 1 min.
本实施例中粘合胶水的涂覆厚度为30μm，模压后形成的嵌接层的厚度约为20μm；抗菌涂料的涂覆厚度为70μm，模压后形成的纳米抗菌层的厚度约为50μm。In this embodiment, the coating thickness of the adhesive glue is 30 μm, the thickness of the embedding layer formed after molding is about 20 μm; the coating thickness of the antibacterial coating is 70 μm, and the thickness of the nano antibacterial layer formed after molding is about 50 μm.
5)片状模塑料的制备：5) Preparation of sheet molding compound:
A.先按照如下组分将不饱和聚酯树脂、固化剂、偶联剂、填料、苯乙烯和助剂以及玻璃纤维等混合制成树脂糊；A. According to the following components, first mix the unsaturated polyester resin, curing agent, coupling agent, filler, styrene, auxiliary agent, and glass fiber to make a resin paste;
本实施例中，片状模塑料具体包括如下重量份的原料：In this embodiment, the sheet molding compound specifically includes the following raw materials in parts by weight:
Figure PCTCN2020123208-appb-000013
Figure PCTCN2020123208-appb-000013
B.通过刮刀，将混合均匀的树脂糊均匀涂敷在PE膜上；再通过调节切割器，切割玻璃纤维，控制玻璃纤维的长度；将PE膜相对粘贴，形成一种上、下均覆有PE膜的片材，再将片材通过压实机压挤，使玻璃纤维与树脂充分浸渍，成型为片材，然后进行收卷；B. Use a scraper to evenly coat the mixed resin paste on the PE film; then adjust the cutter to cut the glass fiber to control the length of the glass fiber; paste the PE film relative to each other to form a coating with both top and bottom PE film sheet, then the sheet is squeezed through a compactor to fully impregnate the glass fiber with the resin, and the sheet is formed, and then the sheet is wound;
C.将收卷的片材运到增稠室增稠，增稠室的温度设置为45℃，增稠时间为24h，得到片状模塑料；C. Transport the rolled sheet to the thickening chamber for thickening. The temperature of the thickening chamber is set to 45°C and the thickening time is 24h to obtain sheet molding compound;
6)模压固化成型：先将片状模塑料铺设至模具内，片状模塑料的铺设面积为最终制得的墙板正投影面积的90％，再将步骤4)中预固化后的饰面纸铺设在模具内的片状模塑料上，一体模压成型；模压过程中型腔在上、型芯在下，饰面纸靠近型腔，片状模塑料靠近型芯，防止因片状模塑料在高温下流动而使饰面纸拉伸导致装饰花纹变形，避免饰面纸褶皱；模压后得到基板表面附着有饰面纸的纳米抗菌墙板，基板与饰面纸之间具有嵌接层，嵌接层由浸润至饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及片状模塑料靠近饰面纸的一侧固化后形成，饰面纸远离基板的一侧具有由抗菌涂料固化后形成的纳米抗菌层。6) Compression and solidification molding: Lay the sheet molding compound into the mold first, the laying area of the sheet molding compound is 90% of the orthographic projection area of the final wallboard, and then the pre-cured veneer in step 4) The paper is laid on the sheet molding compound in the mold and is integrally molded. During the molding process, the cavity is on the top, the core is on the bottom, the facing paper is close to the cavity, and the sheet molding compound is close to the core to prevent the sheet molding compound from being at high temperature. Flow down to make the decorative paper stretch to cause deformation of the decorative pattern, avoiding the wrinkles of the decorative paper; after molding, the nano antibacterial wallboard with the decorative paper attached to the surface of the substrate is obtained. There is an embedding layer between the substrate and the decorative paper, which is embedded The layer is formed by the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper. The side of the decorative paper away from the substrate is formed by curing. The nano antibacterial layer formed after the antibacterial coating is cured.
本实施例中步骤5)模压固化成型中模压条件为型腔155℃，型芯145℃，保压时间180s，模压成型周期为240s/件，铺设面积为90％。模压成型周期为开始放入片状模塑料和饰面纸进行模压到取出模压成型得到的墙板之间的时间间隔。In step 5) of the present embodiment, the molding conditions in the compression curing molding are cavity 155°C, core 145°C, pressure holding time 180s, compression molding cycle 240s/piece, and laying area 90%. The molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard.
实施例4 纳米抗菌墙板的制备方法Example 4 Preparation method of nano antibacterial wallboard
本实施例中提供了一种实施例1中的纳米抗菌墙板的制备方法，包括以下步骤：This embodiment provides a method for preparing the nano antibacterial wallboard in embodiment 1, which includes the following steps:
1)粘合胶水配制：将不饱和聚酯树脂、固化剂、偶联剂、填料和苯乙烯按如下比例加入胶桶中，室温下搅拌20min，转速400r/min，搅拌均匀后备用。1) Adhesive glue preparation: add unsaturated polyester resin, curing agent, coupling agent, filler and styrene into the rubber bucket according to the following proportions, stir at room temperature for 20 minutes, rotate speed 400r/min, and stir evenly before use.
Figure PCTCN2020123208-appb-000014
Figure PCTCN2020123208-appb-000014
2)抗菌涂料配制：将不饱和聚酯树脂、固化剂、偶联剂、填料、纳米二氧化硅、脱模剂和苯乙烯按如下比例加入胶桶中，室温下搅拌20min，转速400r/min，搅拌均匀后备用。2) Antibacterial coating preparation: add unsaturated polyester resin, curing agent, coupling agent, filler, nano-silica, release agent and styrene into the rubber barrel in the following proportions, stir at room temperature for 20 minutes, and rotate at 400r/min , Stir well and set aside.
Figure PCTCN2020123208-appb-000015
Figure PCTCN2020123208-appb-000015
3)粘合胶水的涂覆和预固化：将步骤1)中配制的粘合胶水加入到胶槽中，将粘合胶水涂覆至饰面纸的一侧，调整设备，控制粘合胶水的胶层厚度20μm，用刮刀将多余的胶水刮走，刮平整后，确保粘合胶水的厚度均匀一致，将涂覆有粘合胶水的饰面纸进行第一次干燥；第一次干燥之后，粘合胶水未完全固化；第一次干燥的干燥条件为：120℃下干燥2min。3) Coating and pre-curing of adhesive glue: add the adhesive glue prepared in step 1) into the glue tank, apply the adhesive glue to one side of the facing paper, adjust the equipment, and control the adhesive glue The thickness of the glue layer is 20μm. Use a spatula to scrape off the excess glue. After scraping, make sure that the thickness of the adhesive glue is uniform. Dry the facing paper coated with the adhesive glue for the first time; after the first drying, The adhesive glue is not completely cured; the drying conditions for the first drying are: drying at 120°C for 2 minutes.
4)抗菌涂料的涂覆和预固化：将步骤2)中配制的抗菌涂料加入到另一胶槽中，将抗菌涂料涂覆至饰面纸的另一侧，调整设备，控制抗菌涂料的涂料厚度50μm，用刮刀将多余的涂料刮走，刮平整后，确保抗菌涂料的厚度均匀一致，将涂覆有粘合胶水和抗菌涂料的饰面纸进行第二次干燥，保证烘箱温度，以确保第二次干燥后饰面纸上的粘合胶水和抗菌涂料的固化程度在80％左右。第二次干燥的干燥条件为：135℃下干燥2min。4) Coating and pre-curing of the antibacterial coating: add the antibacterial coating prepared in step 2) to another glue tank, apply the antibacterial coating to the other side of the facing paper, adjust the equipment, and control the coating of the antibacterial coating The thickness is 50μm. Use a scraper to scrape off the excess paint. After squeezing, make sure that the thickness of the antibacterial coating is even and consistent. Dry the facing paper coated with adhesive glue and antibacterial coating for the second time to ensure the oven temperature to ensure The curing degree of the adhesive glue and antibacterial coating on the facing paper after the second drying is about 80%. The drying conditions for the second drying are: drying at 135°C for 2 minutes.
本实施例中粘合胶水的涂覆厚度为20μm，模压后形成的嵌接层的厚度约为10μm；抗菌涂料的涂覆厚度为50μm，模压后形成的纳米抗菌层的厚度约为30μm。In this embodiment, the coating thickness of the adhesive glue is 20 μm, the thickness of the embedding layer formed after molding is about 10 μm; the coating thickness of the antibacterial coating is 50 μm, and the thickness of the nano antibacterial layer formed after molding is about 30 μm.
5)片状模塑料的制备：5) Preparation of sheet molding compound:
A.先按照如下组分将不饱和聚酯树脂、固化剂、偶联剂、填料、苯乙烯和助剂以及玻璃纤维等混合制成树脂糊；A. According to the following components, first mix the unsaturated polyester resin, curing agent, coupling agent, filler, styrene, auxiliary agent, and glass fiber to make a resin paste;
本实施例中，片状模塑料具体包括如下重量份的原料：In this embodiment, the sheet molding compound specifically includes the following raw materials in parts by weight:
Figure PCTCN2020123208-appb-000016
Figure PCTCN2020123208-appb-000016
B.通过刮刀，将混合均匀的树脂糊均匀涂敷在PE膜上；再通过调节切割器，切割玻璃纤维，控制玻璃纤维的长度；将PE膜相对粘贴，形成一种上、下均覆有PE膜的片材，再将片材通过压实机压挤，使玻璃纤维与树脂充分浸渍，成型为片材，然后进行收卷；B. Use a scraper to evenly coat the mixed resin paste on the PE film; then adjust the cutter to cut the glass fiber to control the length of the glass fiber; paste the PE film relative to each other to form a coating with both top and bottom PE film sheet, then the sheet is squeezed through a compactor to fully impregnate the glass fiber with the resin, and the sheet is formed, and then the sheet is wound;
C.将收卷的片材运到增稠室增稠，增稠室的温度设置为45℃，增稠时间为24h，得到片状模塑料；C. Transport the rolled sheet to the thickening chamber for thickening. The temperature of the thickening chamber is set to 45°C and the thickening time is 24h to obtain sheet molding compound;
6)模压固化成型：先将片状模塑料铺设至模具内，基板为片状模塑料，片状模塑料的铺设面积为最终制得的墙板正投影面积的70％，再将步骤4)中预固化后的饰面纸铺设在模具内的片状模塑料上，一体模压成型；模压过程中型腔在上、型芯在下，饰面纸靠近型腔，片状模塑料靠近型芯，防止因片状模塑料在高温下流动而使饰面纸拉伸导致装饰花纹变形，避免饰面纸褶皱；模压后得到基板表面附着有饰面纸的纳米抗菌墙板，基板与饰面纸之间具有嵌接层，嵌接层由浸润至饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及片状模塑料靠近饰面纸的一侧固化后形成，饰面纸远离基板的一侧具有由抗菌涂料固化后形成的纳米抗菌层。6) Compression and solidification molding: Lay the sheet molding compound into the mold first, the substrate is sheet molding compound, and the laying area of the sheet molding compound is 70% of the orthographic projection area of the final wallboard, and then step 4) The pre-cured decorative paper is laid on the sheet molding compound in the mold, and is integrally molded; during the molding process, the cavity is on the top, the core is down, the facing paper is close to the cavity, and the sheet molding compound is close to the core to prevent Due to the flow of sheet molding compound at high temperature, the decorative paper is stretched and the decorative pattern is deformed to avoid the wrinkles of the decorative paper; after molding, the nano antibacterial wallboard with the decorative paper attached to the surface of the substrate is obtained, between the substrate and the decorative paper It has an embedding layer, which is formed by the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper. The decorative paper The side away from the substrate has a nano antibacterial layer formed by curing the antibacterial coating.
本实施例中步骤5)模压固化成型中模压条件为型腔135℃，型芯125℃，保压时间80s，模压成型周期为140s/件，铺设面积为70％。模压成型周期为开始放入片状模塑料和饰面纸进行模压到取出模压成型得到的墙板之间的时间间隔。In step 5) of the present embodiment, the molding conditions in the compression curing molding are cavity 135°C, core 125°C, pressure holding time 80s, compression molding cycle is 140s/piece, and the laying area is 70%. The molding cycle is the time interval between the start of inserting the sheet molding compound and facing paper for molding and the removal of the molded wallboard.
对比例1Comparative example 1
本对比例中的墙板产品为在饰面纸两侧涂覆普通胶水后与片状模塑料模压得到的产品。普通胶水为：邻苯型不饱和聚酯树脂胶水(华科HS-902系列)。制备方法与实施例2中的方法类似。The wallboard product in this comparative example is a product obtained by coating ordinary glue on both sides of the facing paper and molding with sheet molding compound. Ordinary glue is: o-phthalic unsaturated polyester resin glue (Huake HS-902 series). The preparation method is similar to that in Example 2.
实施例5 测试与分析Example 5 Test and analysis
将实施例2、3、4与对比例1制备得到的墙板产品进行耐剥离性、抗菌率、磨耗量、耐化学腐蚀等测试，其中，耐剥离性、抗菌率、和耐化学腐蚀按照G B/T13095-2008中规定的方法进行测试，抗菌率按照QB/T 2591-2003附录B中规定的方法进行测试。测试结果如下：The wallboard products prepared in Examples 2, 3, 4 and Comparative Example 1 were tested for peeling resistance, antibacterial rate, abrasion, and chemical corrosion resistance. Among them, the peeling resistance, antibacterial rate, and chemical corrosion resistance were in accordance with G The test is carried out according to the method specified in B/T13095-2008, and the antibacterial rate is tested according to the method specified in Appendix B of QB/T 2591-2003. The test results are as follows:
表1 实验结果Table 1 Experimental results
 To 耐剥离性Peel resistance 抗菌率Antibacterial rate 磨耗量Abrasion 耐化学腐蚀Chemical resistant
实施例2Example 2 剥离3％Peel 3% 91.50％91.50% 16.3mg/100r16.3mg/100r 无异常，△E＝1.5No abnormality, △E＝1.5
实施例3Example 3 剥离2％Peel 2% 92.30％92.30% 15.1mg/100r15.1mg/100r 无异常，△E＝1.2No abnormality, △E＝1.2
实施例4Example 4 未剥离Unstripped 85.8％85.8% 16.8mg/100r16.8mg/100r 无异常，△E＝0.8No abnormality, △E＝0.8
对比例1Comparative example 1 剥离8％Peeling 8% 50.20％50.20% 17.2mg/100r17.2mg/100r 无异常，△E＝1.8No abnormality, △E＝1.8
表1表明：通过实施例2-4的方法制备得到的墙板产品，其在耐剥离性、抗菌率、磨耗量、耐化学腐蚀等性能上明显优于对比例1中采用传统胶水制备得到的墙板产品。Table 1 shows that the wallboard products prepared by the methods of Examples 2-4 are significantly better than those prepared by using traditional glue in Comparative Example 1 in terms of peel resistance, antibacterial rate, abrasion resistance, and chemical corrosion resistance. Wallboard products.
实施例2-4中纳米抗菌墙板的制备方法通过在饰面纸的一侧涂覆粘合胶水、另一侧涂覆抗菌涂料，粘合胶水与基板的成分类似，且采用预固化的方式使得粘合胶水和抗菌涂料在模压之前不会完全固化，使得模压后饰面纸与基板之间的结合更加牢固可靠；采取将粘合胶水和抗菌涂料都涂覆在饰面纸上的方式，使得饰面纸能够充分润湿，充分润湿后的饰面纸在与片状模塑料模压的时候能够更好地贴合，在模压中能够避免饰面纸被撕开的不良情况，提高了良品率，保证了最终墙板制品的质量。The preparation method of the nano antibacterial wallboard in Example 2-4 is by coating adhesive glue on one side of the facing paper and antibacterial paint on the other side. The adhesive glue is similar to the substrate and adopts a pre-curing method. The adhesive glue and antibacterial coating will not be completely cured before molding, so that the bonding between the decorative paper and the substrate after molding is more firm and reliable; the adhesive glue and antibacterial coating are both coated on the decorative paper, The decorative paper can be fully wetted, and the fully wetted decorative paper can better fit when molded with the sheet molding compound. In the molding process, the decorative paper can be prevented from being torn, and the problem is improved. The yield rate guarantees the quality of the final wallboard products.
实施例2-4制备得到的纳米抗菌墙板，在饰面纸与基板之间具有与基板成分类似的粘合胶水，不仅使得固化条件相同、制备工艺易于控制，且使得基板与饰面纸之间的结合更加牢固可靠，在饰面纸远离基板的一侧还具有纳米抗菌层，不仅能够防止饰面纸损坏，延长墙板的使用寿命，且具有抗菌防霉的作用，使得墙板能够耐磨、耐化学试剂。The nano antibacterial wallboard prepared in Example 2-4 has an adhesive glue similar to the composition of the substrate between the facing paper and the substrate, which not only makes the curing conditions the same, the preparation process is easy to control, but also makes the substrate and the facing paper easy to control. The combination between the two is more firm and reliable. There is also a nano antibacterial layer on the side of the facing paper away from the substrate, which can not only prevent damage to the facing paper, extend the service life of the wallboard, but also has the effect of antibacterial and mildew resistance, making the wallboard resistant Abrasion and chemical resistance.
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技 术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。The above-mentioned embodiments are only to illustrate the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement them accordingly, and cannot limit the scope of protection of the present invention. The equivalent changes or modifications made by the spirit essence should all be covered within the protection scope of the present invention.

Claims (25)

  1. 一种纳米抗菌墙板的制备方法，其特征在于，包括以下步骤：A preparation method of nano antibacterial wallboard is characterized in that it comprises the following steps:
    1)分别配制粘合胶水和抗菌涂料，将所述粘合胶水涂覆至饰面纸的一侧，将所述抗菌涂料涂覆至所述饰面纸的另一侧，对所述饰面纸进行干燥；1) Prepare adhesive glue and antibacterial coating separately, apply the adhesive glue to one side of the facing paper, apply the antibacterial coating to the other side of the facing paper, and apply the adhesive glue to the other side of the facing paper. The paper is dried;
    2)将片状模塑料铺设至模具内，所述片状模塑料的铺设面积小于最终制得的纳米抗菌墙板的正投影面积，再将经干燥后的饰面纸铺设在模具内的片状模塑料上，使得粘合胶水位于所述饰面纸与片状模塑料之间，之后一体模压成型；模压后得到基板表面附着有饰面纸的墙板，所述基板与所述饰面纸之间具有嵌接层，所述嵌接层由浸润至所述饰面纸内的粘合胶水、饰面纸与片状模塑料之间的粘合胶水以及所述片状模塑料靠近所述饰面纸的一侧固化后形成，所述饰面纸远离所述基板的一侧具有由所述抗菌涂料固化后形成的纳米抗菌层；2) Lay the sheet molding compound into the mold, the laying area of the sheet molding compound is smaller than the orthographic projection area of the final nano antibacterial wallboard, and then lay the dried facing paper on the sheet in the mold On the molding compound, the adhesive glue is located between the facing paper and the sheet molding compound, and then integrally molded and molded; after molding, a wallboard with facing paper attached to the surface of the substrate is obtained, and the substrate and the facing There is an inlay layer between the papers, and the inlay layer is composed of the adhesive glue infiltrated into the facing paper, the adhesive glue between the facing paper and the sheet molding compound, and the sheet molding compound close to the surface. The decorative paper is formed after curing on one side, and the side of the decorative paper away from the substrate has a nano antibacterial layer formed by curing the antibacterial coating;
    所述抗菌涂料、粘合胶水与片状模塑料均包括如下成分的原料：不饱和聚酯树脂、固化剂、填料和交联剂，所述抗菌涂料还包括纳米氧化物。The antibacterial coating, adhesive glue and sheet molding compound all include the following raw materials: unsaturated polyester resin, curing agent, filler and crosslinking agent, and the antibacterial coating also includes nano oxide.
  2. 根据权利要求1所述的一种纳米抗菌墙板的制备方法，其特征在于，所述干燥结束后所述饰面纸上的粘合胶水和抗菌涂料的固化程度均为80-90％。The preparation method of nano antibacterial wallboard according to claim 1, wherein the curing degree of the adhesive glue and the antibacterial coating on the facing paper after the drying is 80-90%.
  3. 根据权利要求1所述的一种纳米抗菌墙板的制备方法，其特征在于，所述干燥包括将所述粘合胶水涂覆至饰面纸的一侧后进行的第一次干燥以及将所述抗菌涂料涂覆至所述饰面纸的另一侧后进行的第二次干燥。The method for preparing nano antibacterial wallboard according to claim 1, wherein the drying comprises the first drying performed after applying the adhesive glue to one side of the facing paper and the The second drying after the antibacterial coating is applied to the other side of the facing paper.
  4. 根据权利要求3所述的一种纳米抗菌墙板的制备方法，其特征在于，所述粘合胶水的涂覆和第一干燥包括如下步骤：将配制好的粘合胶水加入到胶槽中，将粘合胶水涂覆至饰面纸的一侧，控制胶层厚度，用刮刀将多余的胶水刮走，刮平整后，确保粘合胶水的厚度均匀一致，将涂覆有粘合胶水的饰面纸进行第一次干燥。The method for preparing nano antibacterial wallboard according to claim 3, wherein the coating and first drying of the adhesive glue comprise the following steps: adding the prepared adhesive glue into the glue tank, Apply adhesive glue to one side of the facing paper, control the thickness of the glue layer, scrape off the excess glue with a squeegee, and make sure that the thickness of the adhesive glue is uniform after scraping. The tissue is dried for the first time.
  5. 根据权利要求3所述的一种纳米抗菌墙板的制备方法，其特征在于，所述抗菌涂料的涂覆和第二干燥包括如下步骤：将配制好的抗菌涂料加入到另一胶槽中，将抗菌涂料涂覆至饰面纸的另一侧，控制涂料厚度，用刮刀将多余的涂料刮走，刮平整后，确保抗菌涂料的厚度均匀一致，将涂覆有粘合胶水和抗菌涂料的饰面纸进行第二次干燥。The method for preparing nano antibacterial wallboard according to claim 3, characterized in that the coating and second drying of the antibacterial coating comprise the following steps: adding the prepared antibacterial coating to another glue tank, Apply the antibacterial coating to the other side of the facing paper, control the thickness of the coating, scrape off the excess coating with a scraper, and make sure that the thickness of the antibacterial coating is uniform after scraping. The adhesive glue and antibacterial coating will be coated The facing paper is dried a second time.
  6. 根据权利要求3所述的一种纳米抗菌墙板的制备方法，其特征在于，所述第一次干燥的干燥条件为：120-130℃下干燥1-2min；所述第二次干燥的干燥条件为：135-150℃下干燥1-2min。The method for preparing nano antibacterial wallboard according to claim 3, characterized in that the drying conditions of the first drying are: drying at 120-130°C for 1-2 minutes; the drying of the second drying The conditions are: drying at 135-150°C for 1-2 min.
  7. 根据权利要求1所述的一种纳米抗菌墙板的制备方法，其特征在于，所 述粘合胶水的涂覆厚度为20-30μm，固化、模压后形成的嵌接层的厚度为10-20μm；所述抗菌涂料的涂覆厚度为50-70μm，固化、模压后形成的纳米抗菌层的厚度为30-50μm。The method for preparing nano antibacterial wallboard according to claim 1, wherein the coating thickness of the adhesive glue is 20-30μm, and the thickness of the embedding layer formed after curing and molding is 10-20μm The coating thickness of the antibacterial coating is 50-70 μm, and the thickness of the nano antibacterial layer formed after curing and molding is 30-50 μm.
  8. 根据权利要求1所述的一种纳米抗菌墙板的制备方法，其特征在于，所述片状模塑料的铺设面积为最终制得的纳米抗菌墙板正投影面积的70％-90％。The method for preparing nano antibacterial wallboard according to claim 1, characterized in that the laying area of the sheet molding compound is 70%-90% of the final projected area of the nano antibacterial wallboard.
  9. 根据权利要求1所述的一种纳米抗菌墙板的制备方法，其特征在于，所述模压条件为模具的型腔温度135-155℃，型芯温度125-145℃，保压时间80-180s，模压成型周期为140-240s/件。The method for preparing nano antibacterial wallboard according to claim 1, wherein the molding conditions are the mold cavity temperature of 135-155°C, the core temperature of 125-145°C, and the holding time of 80-180s. , The molding cycle is 140-240s/piece.
  10. 根据权利要求1所述的一种纳米抗菌墙板的制备方法，其特征在于，所述粘合胶水中不饱和聚酯树脂的质量百分比大于所述基板中不饱和聚酯树脂的质量百分比；所述粘合胶水中填料的质量百分比小于所述基板中填料的质量百分比。The method for preparing nano antibacterial wallboard according to claim 1, wherein the mass percentage of unsaturated polyester resin in the adhesive glue is greater than the mass percentage of unsaturated polyester resin in the substrate; The mass percentage of the filler in the adhesive glue is less than the mass percentage of the filler in the substrate.
  11. 根据权利要求10所述的一种纳米抗菌墙板的制备方法，其特征在于，所述粘合胶水中不饱和聚酯树脂的质量百分比为35-50％，所述粘合胶水中填料的质量百分比为15-25％；所述基板中不饱和聚酯树脂的质量百分比为20-40％，所述基板中填料的质量百分比为40％-60％。The method for preparing nano antibacterial wallboard according to claim 10, wherein the mass percentage of the unsaturated polyester resin in the adhesive glue is 35-50%, and the mass of the filler in the adhesive glue is 35-50%. The percentage is 15-25%; the mass percentage of the unsaturated polyester resin in the substrate is 20-40%, and the mass percentage of the filler in the substrate is 40-60%.
  12. 根据权利要求11所述的一种纳米抗菌墙板的制备方法，其特征在于，所述粘合胶水包括如下重量份的原料：The method for preparing nano antibacterial wallboard according to claim 11, wherein the adhesive glue comprises the following raw materials in parts by weight:
    Figure PCTCN2020123208-appb-100001
    Figure PCTCN2020123208-appb-100001
  13. 根据权利要求12所述的一种纳米抗菌墙板的制备方法，其特征在于，所述粘合胶水的制备包括如下步骤：将不饱和聚酯树脂、固化剂、偶联剂、填料和交联剂苯乙烯按比例加入胶桶中，室温下搅拌20-30min，转速300-400r/min，搅拌均匀后得到粘合胶水。The preparation method of nano antibacterial wallboard according to claim 12, characterized in that, the preparation of the adhesive glue comprises the following steps: the unsaturated polyester resin, curing agent, coupling agent, filler and crosslinking Add styrene into the glue bucket in proportion, stir at room temperature for 20-30min, rotate speed 300-400r/min, and obtain adhesive glue after stirring evenly.
  14. 根据权利要求11所述的一种纳米抗菌墙板的制备方法，其特征在于，所述片状模塑料包括如下重量份的原料：The method for preparing nano antibacterial wallboard according to claim 11, wherein the sheet molding compound comprises the following raw materials in parts by weight:
    Figure PCTCN2020123208-appb-100002
    Figure PCTCN2020123208-appb-100002
    Figure PCTCN2020123208-appb-100003
    Figure PCTCN2020123208-appb-100003
  15. 根据权利要求1所述的一种纳米抗菌墙板的制备方法，其特征在于：所述抗菌涂料包括如下成分的原料：不饱和聚酯树脂、固化剂、偶联剂、填料、交联剂苯乙烯、纳米氧化物和脱模剂，所述纳米氧化物为纳米二氧化硅或纳米二氧化钛。The preparation method of nano antibacterial wallboard according to claim 1, characterized in that: the antibacterial coating includes raw materials of the following ingredients: unsaturated polyester resin, curing agent, coupling agent, filler, crosslinking agent benzene Ethylene, nano oxide and release agent, the nano oxide is nano silicon dioxide or nano titanium dioxide.
  16. 根据权利要求15所述的一种纳米抗菌墙板的制备方法，其特征在于：所述抗菌涂料包括如下重量份的原料：The method for preparing nano antibacterial wallboard according to claim 15, wherein the antibacterial coating includes the following raw materials in parts by weight:
    Figure PCTCN2020123208-appb-100004
    Figure PCTCN2020123208-appb-100004
  17. 根据权利要求16所述的一种纳米抗菌墙板的制备方法，其特征在于：所述抗菌涂料的制备包括如下步骤：将不饱和聚酯树脂、固化剂、偶联剂、填料、纳米二氧化硅、脱模剂和交联剂苯乙烯按比例加入胶桶中，室温下搅拌40-60min，转速300-400r/min，搅拌均匀后得到抗菌涂料。The method for preparing nano antibacterial wallboard according to claim 16, characterized in that: the preparation of the antibacterial coating comprises the following steps: combining unsaturated polyester resin, curing agent, coupling agent, filler, nano dioxide Silicon, mold release agent and cross-linking agent styrene are added to the rubber barrel in proportion, and stirred at room temperature for 40-60min, at a speed of 300-400r/min, and stirred evenly to obtain an antibacterial coating.
  18. 根据权利要求15所述的一种纳米抗菌墙板的制备方法，其特征在于，所述交联剂为苯乙烯；所述固化剂为过氧化苯甲酸叔丁酯和/或过氧化苯甲酰；所述偶联剂为硅烷偶联剂和/或钛酸酯；所述填料为氢氧化铝粉末和/或碳酸钙粉末，所述氢氧化铝粉末和碳酸钙粉末的粒径小于或等于10μm；所述不饱和树脂为邻苯、间苯、或环氧乙烯基酯类不饱和树脂，所述不饱和聚酯树脂的粘度为23℃下1100-1400mPa.s。The method for preparing nano antibacterial wallboard according to claim 15, wherein the crosslinking agent is styrene; and the curing agent is tert-butyl peroxide and/or benzoyl peroxide. The coupling agent is a silane coupling agent and/or titanate; the filler is aluminum hydroxide powder and/or calcium carbonate powder, and the particle size of the aluminum hydroxide powder and calcium carbonate powder is less than or equal to 10 μm The unsaturated resin is ortho-benzene, iso-benzene, or epoxy vinyl ester unsaturated resin, and the viscosity of the unsaturated polyester resin is 1100-1400 mPa.s at 23° C.;
  19. 根据权利要求18所述的一种纳米抗菌墙板的制备方法，其特征在于，所述固化剂为过氧化(2-乙基己酸)叔丁酯、过氧化甲乙酮、过氧化苯甲酸叔丁酯、过氧化二苯甲酰、过氧化二碳酸二(4-叔丁基)环己酯、过氧化二月桂 酰或脂肪多元胺等中的一种或多种组合。The method for preparing nano antibacterial wallboard according to claim 18, wherein the curing agent is tert-butyl peroxide (2-ethylhexanoic acid), methyl ethyl ketone peroxide, tert-butyl peroxide benzoate One or more combinations of ester, dibenzoyl peroxide, di(4-tert-butyl)cyclohexyl peroxide, dilauroyl peroxide, or fatty polyamine.
  20. 根据权利要求18所述的一种纳米抗菌墙板的制备方法，其特征在于，所述硅烷偶联剂为γ-(甲基丙烯酰氧基丙基)三甲氧基硅烷、γ-(2，3-环氧丙氧)丙基三甲氧基硅烷、N-β(氨乙基)-γ-氨丙基甲基二甲氧基硅烷、N-(β-氨乙基)-γ-氨丙基三乙氧基硅烷、N-β(氨乙基)-γ-氨丙基三甲氧基硅烷、苯胺甲基三乙氧基硅烷、γ-氨丙基三乙氧基硅烷、乙烯基三乙氧基硅烷、乙烯基三甲氧基硅烷和γ-氯丙基三乙氧基硅烷等中的一种或多种组合。The method for preparing nano antibacterial wallboard according to claim 18, wherein the silane coupling agent is γ-(methacryloxypropyl)trimethoxysilane, γ-(2, 3-Glyoxypropoxy)propyltrimethoxysilane, N-β(aminoethyl)-γ-aminopropylmethyldimethoxysilane, N-(β-aminoethyl)-γ-aminopropyl Triethoxysilane, N-β(aminoethyl)-γ-aminopropyltrimethoxysilane, anilinomethyltriethoxysilane, γ-aminopropyltriethoxysilane, vinyl triethyl One or more combinations of oxysilane, vinyltrimethoxysilane, γ-chloropropyltriethoxysilane, and the like.
  21. 根据权利要求18所述的一种纳米抗菌墙板的制备方法，其特征在于，所述片状模塑料中使用的不饱和树脂的分子中含有羧基以用于增稠。The preparation method of nano antibacterial wallboard according to claim 18, characterized in that the unsaturated resin used in the sheet molding compound contains carboxyl groups in the molecule for thickening.
  22. 根据权利要求18所述的一种纳米抗菌墙板的制备方法，其特征在于，采用的固化剂为氧化苯甲酸叔丁酯或过氧化(2-乙基已酸)叔丁酯，或者为氧化苯甲酸叔丁酯与过氧化2-乙基已酸叔丁酯按质量比0.7-0.8：0.3-0.2组成的复合固化剂体系。The method for preparing nano antibacterial wallboard according to claim 18, wherein the curing agent used is tert-butyl oxybenzoate or tert-butyl peroxide (2-ethylhexanoic acid), or oxidized A composite curing agent system composed of tert-butyl benzoate and tert-butyl peroxide 2-ethylhexanoate in a mass ratio of 0.7-0.8: 0.3-0.2.
  23. 根据权利要求18所述的一种纳米抗菌墙板的制备方法，其特征在于，所述粘合胶水的粘度为23℃下1000-1300mPa.s；所述抗菌涂料的粘度为23℃下1200-1500mPa.s。The method for preparing nano antibacterial wallboard according to claim 18, wherein the viscosity of the adhesive glue is 1000-1300 mPa.s at 23°C; the viscosity of the antibacterial coating is 1200-1200 mPa.s at 23°C. 1500mPa.s.
  24. 一种纳米抗菌墙板，包括基板以及与其复合的饰面纸，所述基板由片状模塑料模压固化后形成，其特征在于，所述基板与所述饰面纸之间具有嵌接层，所述嵌接层由浸润至所述饰面纸内的粘合胶水、饰面纸与基板之间的粘合胶水以及所述片状模塑料靠近所述饰面纸的一侧固化后形成，所述饰面纸远离所述基板的一侧具有纳米抗菌层，所述纳米抗菌层由抗菌涂料固化后形成。A nano antibacterial wallboard, comprising a substrate and a decorative paper composited with the substrate. The substrate is formed by molding and curing sheet molding compound. The substrate is characterized in that there is an embedding layer between the substrate and the decorative paper, The embedding layer is formed by curing the adhesive glue infiltrated into the decorative paper, the adhesive glue between the decorative paper and the substrate, and the side of the sheet molding compound close to the decorative paper, The side of the decorative paper away from the substrate is provided with a nano antibacterial layer, and the nano antibacterial layer is formed by curing an antibacterial paint.
  25. 根据权利要求24所述的一种纳米抗菌墙板，其特征在于，所述纳米抗菌墙板由所述片状模塑料、粘合胶水、饰面纸和抗菌涂料一体模压固化成型。The nano antibacterial wallboard according to claim 24, wherein the nano antibacterial wallboard is integrally molded and cured by the sheet molding compound, adhesive glue, facing paper and antibacterial coating.
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