CN111138778A - Cabinet board - Google Patents

Cabinet board Download PDF

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Publication number
CN111138778A
CN111138778A CN201911419791.0A CN201911419791A CN111138778A CN 111138778 A CN111138778 A CN 111138778A CN 201911419791 A CN201911419791 A CN 201911419791A CN 111138778 A CN111138778 A CN 111138778A
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CN
China
Prior art keywords
parts
layer
stabilizer
calcium carbonate
flame retardant
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CN201911419791.0A
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Chinese (zh)
Inventor
叶润露
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Anhui Kojo New Material Technology Co Ltd
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Anhui Kojo New Material Technology Co Ltd
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Priority to CN201911419791.0A priority Critical patent/CN111138778A/en
Publication of CN111138778A publication Critical patent/CN111138778A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • 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
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C08K2003/387—Borates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a cabinet plate which comprises a middle core layer and an outer cladding layer, wherein the outer cladding layer is coated on the outer surface of the middle core layer through extrusion molding; the middle core layer comprises PVC resin, wood powder, calcium carbonate, a synergist, a foaming agent, a stabilizer, a coupling agent, a processing aid and a lubricant; the outer coating comprises PVC resin, calcium carbonate, a synergist, a stabilizer, an impact modifier, a coupling agent, a processing aid, a lubricant and a flame retardant; the flame retardant comprises a shell, a middle layer and an inner core; the shell component is aluminum hydroxide, the middle layer component is hydrated zinc borate, and the core component is magnesium hydroxide. And, the particle diameter of the flame retardant is: d50 is less than 60nm, and D90 is less than 100 nm. The outer coating layer plays a role in enhancing the mechanical property and flame retardance of the cabinet board, and the middle core layer plays a role in reducing the density of the cabinet board, so that the physical and chemical properties of the traditional cabinet board are optimized.

Description

Cabinet board
Technical Field
The invention relates to the technical field of wood-plastic composite materials, in particular to a cabinet board.
Background
The artificial board in China is mainly used for manufacturing furniture and cabinets in the household field, and the like, and is increasingly applied to the furniture, particularly the cabinets in recent years along with the improvement of the quality of the artificial board. Currently, most of the indoor artificial boards in China are produced by adopting urea-formaldehyde resin adhesive (UF). Although the limit value of formaldehyde release in artificial boards and products thereof is definitely specified in GB 18580-2000 limit value of formaldehyde release in artificial boards and products thereof for interior decoration and finishing materials, and most of the artificial boards can meet the environmental protection requirements in use, the particle boards produced by using the urea-formaldehyde resin adhesive release more or less free formaldehyde, and the formaldehyde released in the case of large-scale indoor use can cause pollution to indoor living environment. Therefore, the problem of formaldehyde emission in the artificial board has been one of the important issues facing the industry development.
The wood-plastic composite material has the outstanding advantages of environmental protection, no formaldehyde, no volatile gas, water resistance, moisture resistance, corrosion resistance, moth resistance, good comprehensive mechanical property and the like, and is more and more concerned in the field of household. However, with the application and development of the wood-plastic composite material, researches show that the mechanical property of the PVC wood-plastic composite material is not as good as expected, wherein although the PVC foaming production process can obtain a light product with low density, the comprehensive mechanical property of the composite material is weakened.
Disclosure of Invention
The invention aims to provide a cabinet board and a wood-plastic composite material, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a cabinet panel, the cabinet panel comprising:
a middle core layer;
the outer cladding layer is coated on the outer surface of the middle core layer through extrusion molding;
the middle core layer comprises PVC resin, wood powder, calcium carbonate, a synergist, a foaming agent, a stabilizer, a coupling agent, a processing aid and a lubricant;
the outer coating comprises PVC resin, calcium carbonate, a synergist, a stabilizer, an impact modifier, a coupling agent, a processing aid, a lubricant and a flame retardant;
wherein the flame retardant comprises:
a housing: the shell component is aluminum hydroxide;
a middle layer, wherein the middle layer component is hydrated zinc borate;
the core, the said core ingredient is magnesium hydroxide;
and, the particle diameter of the flame retardant is: d50 is less than 60nm, and D90 is less than 100 nm.
Preferably, the core layer comprises the following components in parts by weight: 80-120 parts of PVC resin, 15-35 parts of wood powder, 15-35 parts of calcium carbonate, 15-35 parts of a synergist, 1-3 parts of a foaming agent, 5-10 parts of a stabilizer, 1-2 parts of a coupling agent, 6-10 parts of a processing aid and 2-4 parts of a lubricant.
Preferably, the outer cladding comprises the following components in parts by weight: 80-120 parts of PVC resin, 15-55 parts of calcium carbonate, 15-35 parts of synergist, 5-10 parts of stabilizer, 3-8 parts of impact modifier, 1-2 parts of coupling agent, 6-10 parts of processing aid, 2-4 parts of lubricant and 8-20 parts of flame retardant.
Preferably, the inner core and the middle layer are connected by an adhesive, and the middle layer and the outer shell are connected by an adhesive.
Preferably, the adhesive is a hot melt adhesive.
Preferably, the weight part ratio of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide is 3: 2: 1.
Preferably, the particle diameters of the aluminum hydroxide, the hydrated zincate borate and the magnesium hydroxide are all less than 20 nm.
Preferably, the thickness of the outer cladding layer is 1-5 mm, and the thickness of the middle core layer is 3-15 mm.
Preferably, the stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organic tin stabilizer.
Preferably, the lubricant is one or more of paraffin wax, PE wax, stearic acid and calcium stearate.
Compared with the prior art, the invention has the beneficial effects that:
according to the cabinet board, the outer coating layer is coated on the outer surface of the middle core layer through extrusion molding, the outer coating layer plays a role in enhancing the mechanical property and flame retardance of the cabinet board, and the middle core layer plays a role in reducing the density of the cabinet board, so that the physical and chemical properties of the traditional cabinet board are optimized.
The flame retardant of the outer coating layer is subjected to flame retardance in a gradient progressive mode, aluminum hydroxide starts to absorb heat and decompose after 200 ℃ to release crystal water, the combustion of a polymer is delayed in the heat absorption dehydration process, the aluminum hydroxide is equivalent to a radiator, the combustion speed is slowed down, simultaneously the released water vapor not only dilutes combustion gas, but also participates in the reaction of a condensation phase, the heat absorption decomposition is based on the large amount of heat absorption during the decomposition of the aluminum hydroxide, only steam is released during the heat decomposition, and toxic, combustible or corrosive gas is not generated. When the temperature is still raised, the hydrated zinc borate is thermally decomposed at 300 ℃, and crystal water is released, so that the effects of heat absorption and cooling and dilution of oxygen in air are achieved. On the other hand, zinc borate decomposes at high temperatures to form B2O3A coating layer is formed on the surface of the polymer, and the coating layer can inhibit the generation of combustible gas and can prevent oxidation reaction and thermal decomposition. When the temperature is still raised, the magnesium hydroxide is decomposed and absorbs the surface heat of the combustion object to play a role in flame retardance when being heated (340-490 ℃); meanwhile, a large amount of moisture is released to dilute oxygen on the surface of the combustible, and active magnesium oxide generated by decomposition is attached to the surface of the combustible to further prevent the combustion from proceeding. The magnesium hydroxide does not generate any harmful substance in the whole flame-retardant process, the decomposed product of the magnesium hydroxide can absorb a large amount of harmful gas and smoke generated by the high-molecular combustion of rubber, plastics and the like while resisting flame, and the active magnesium oxide continuously absorbs the incompletely combusted molten magnesium oxideThe residue eliminates smoke and prevents molten drops while stopping combustion quickly. The flame retardant effect is more excellent and the flame retardant reliability is improved by flame retarding in a continuous gradient progressive mode.
Meanwhile, the particle diameter of the cabinet board is controlled to be D50<60nm and D90 < 100nm, so that the specific surface area of the cabinet board particles is increased, the surface effect is improved, the interface effect is enhanced, the compatibility of inorganic substances and polymers is improved, and the flame retardant effect is improved.
Detailed Description
In order to enhance the understanding of the present invention, the present invention will be further described with reference to the following examples, which are only for the purpose of illustrating the present invention and are not to be construed as limiting the scope of the present invention.
The embodiment of the invention provides a cabinet plate, which comprises a middle core layer and an outer cladding layer, wherein the outer cladding layer is coated on the outer surface of the middle core layer through extrusion molding; the middle core layer comprises PVC resin, wood powder, calcium carbonate, a synergist, a foaming agent, a stabilizer, a coupling agent, a processing aid and a lubricant; the outer coating comprises PVC resin, calcium carbonate, a synergist, a stabilizer, an impact modifier, a coupling agent, a processing aid, a lubricant and a flame retardant;
the flame retardant comprises a shell, a middle layer and a core, wherein the shell is composed of aluminum hydroxide; the middle layer component is hydrated zinc borate; the core component is magnesium hydroxide, and the particle diameter of the flame retardant is as follows: d50 is less than 60nm, and D90 is less than 100 nm.
The outer coating layer is coated on the outer surface of the middle core layer through extrusion molding, the outer coating layer plays a role in enhancing the mechanical property and flame retardance of the cabinet board, and the middle core layer plays a role in reducing the density of the cabinet board, so that the physical and chemical properties of the traditional cabinet board are optimized.
Specifically, the components of the outer layer can be attached to the surface of the components of the inner layer by layer in a spraying manner in the preparation process, namely, the hydrated zinc borate is sprayed and attached to the surface of the magnesium hydroxide, and the aluminum hydroxide is further sprayed and attached to the surface of the hydrated zinc borate.
Examples of the inventionThe aluminum hydroxide is used as a flame retardant filler, and has the triple functions of filling, flame retarding and smoke abatement, so that the aluminum hydroxide becomes a filler which attracts special attention in the material industry. When the temperature is still raised, the hydrated zinc borate is thermally decomposed at 300 ℃, and crystal water is released, so that the effects of heat absorption and cooling and dilution of oxygen in air are achieved. On the other hand, zinc borate decomposes at high temperatures to form B2O3A coating layer is formed on the surface of the polymer, and the coating layer can inhibit the generation of combustible gas and can prevent oxidation reaction and thermal decomposition. When the temperature is still raised, the magnesium hydroxide is decomposed and absorbs the surface heat of the combustion object to achieve the flame retardant effect when being heated (340-490 ℃); meanwhile, a large amount of moisture is released to dilute oxygen on the surface of the combustible, and active magnesium oxide generated by decomposition is attached to the surface of the combustible to further prevent the combustion from proceeding. The magnesium hydroxide does not generate any harmful substance in the whole flame-retardant process, the decomposed product of the magnesium hydroxide can absorb a large amount of harmful gas and smoke generated by the high-molecular combustion of rubber, plastics and the like while resisting flame, and the active magnesium oxide continuously absorbs the incompletely combusted melting residues, so that the smoke is eliminated and the molten drops are prevented while the combustion is stopped quickly. The flame retardant effect is more excellent and the flame retardant reliability is improved by flame retarding in a continuous gradient progressive mode.
Meanwhile, the particle diameter of the cabinet board is controlled to be D50<60nm and D90 < 100nm, so that the specific surface area of the cabinet board particles is increased, the surface effect is improved, the interface effect is enhanced, the compatibility of inorganic substances and polymers is improved, and the flame retardant effect is improved.
In one embodiment, the middle core layer comprises the following components in parts by weight: 80-120 parts of PVC resin, 15-35 parts of wood powder, 15-35 parts of calcium carbonate, 15-35 parts of a synergist, 1-3 parts of a foaming agent, 5-10 parts of a stabilizer, 1-2 parts of a coupling agent, 6-10 parts of a processing aid and 2-4 parts of a lubricant.
In one embodiment, the outer cladding comprises, in parts by weight: 80-120 parts of PVC resin, 15-55 parts of calcium carbonate, 15-35 parts of synergist, 5-10 parts of stabilizer, 3-8 parts of impact modifier, 1-2 parts of coupling agent, 6-10 parts of processing aid, 2-4 parts of lubricant and 8-20 parts of flame retardant.
In one embodiment, the inner core and the middle layer are connected by an adhesive, and the middle layer and the outer shell are connected by an adhesive.
In one embodiment, the adhesive is a hot melt adhesive. The hot melt adhesive is a solid adhesive used after melting the adhesive by heating. In general, thermoplastic resins such as polyurethane, polystyrene, polyacrylate, ethylene-vinyl acetate copolymer, etc. can be used. The three-layer cabinet plate structure is realized, and meanwhile, the flame retardant work is not influenced.
In one embodiment, the weight portion ratio of the aluminum hydroxide, the hydrated zincate borate and the magnesium hydroxide is 3: 2: 1. By controlling the proportion of the three layers, the physicochemical property of the wood-plastic composite material is ensured while the optimal flame-retardant effect is realized.
In one embodiment, the aluminum hydroxide, the hydrated zincate borate and the magnesium hydroxide each have a particle diameter of less than 20 nm. The specific surface area of the cabinet plate particles is ensured by controlling the particle diameters of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide.
In one embodiment, the thickness of the outer cladding layer is 1-5 mm, and the thickness of the central core layer is 3-15 mm.
In one embodiment, the stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organic tin stabilizer.
In one embodiment, the lubricant is a mixture of one or more of paraffin wax, PE wax, stearic acid, and calcium stearate.
Specifically, in the above embodiments, the calcium carbonate is one or a mixture of multiple kinds of heavy calcium carbonate, light calcium carbonate, and composite calcium carbonate.
In the above embodiment, the foaming agent is one or a mixture of two of azodicarbonamide and calcium bicarbonate; the processing aid is one or a mixture of two of ACR401 and 530 foaming regulators.
The preparation in the above examples can be carried out by the following method:
I) according to the proportion, the raw materials of the middle core layer and the outer cladding layer are respectively added into different blenders to be stirred and mixed; the stirring requirements of the raw materials of the inner layer and the outer layer are the same, and the concrete requirements are as follows:
after the cover is sealed, starting at a low speed, and stirring at a speed of 270-330 rpm; after 3-7 minutes, adjusting to high speed, and stirring at 1000-1500 rpm; by adopting the stirring method of firstly low speed and then high speed, the materials are fully stirred in the stirring process, and the requirement of quality stability is met.
Heating the material to 115-125 ℃ by electric heating and material self-friction heating, putting the material into a low-speed stirring kettle, cooling to about 30 ℃ (24-36 ℃) and discharging; after the materials are put into the stirrer, the materials are at normal temperature, and then the materials are stirred and heated to the temperature, and then the stirring is stopped;
2) putting the uniformly mixed materials into a hopper of an extruder, wherein the raw material of the middle core layer is put into the extruder serving as a main machine, and the raw material of the outer coating layer is put into the extruder serving as an auxiliary machine for extruding respectively;
meanwhile, keeping the temperature of each area of the extruder at 160-170 ℃, and melting, plasticizing and extruding the raw materials by the extruder;
the discharge ports of the main machine and the auxiliary machine are connected to the feed port of the die through a distributor; the middle core layer and the outer cladding layer materials enter a die through a distributor, are extruded out of the die and then are cooled and shaped through a shaping die; the cooling is water cooling, and the water temperature is controlled to be not more than 10 ℃.
3) And pulling out the product obtained by shaping in the die in a pulling mode, and finally cutting to the required length.
And in the product obtained by cutting, defective products and leftover materials are crushed and ground and then mixed into the raw material of the central core layer for use.
The following is a detailed description by way of specific examples:
example 1:
a cabinet panel comprising a central core layer and an outer cladding layer, the outer cladding layer being clad on the outside of the central core layer by extrusion molding; the thickness of the outer cladding layer is 1mm, and the thickness of the central core layer is 15 mm;
the middle core layer comprises the following components in parts by weight: 80 parts of PVC resin, 35 parts of wood powder, 15 parts of calcium carbonate, 35 parts of a synergist, 1 part of a foaming agent, 10 parts of a stabilizer, 1 part of a coupling agent, 10 parts of a processing aid and 2 parts of a lubricant.
The outer coating comprises the following components in parts by weight: 120 parts of PVC resin, 15 parts of calcium carbonate, 35 parts of synergist, 5 parts of stabilizer, 8 parts of impact modifier, 1 part of coupling agent, 10 parts of processing aid, 2 parts of lubricant and 20 parts of flame retardant.
The flame retardant comprises a shell, a middle layer and a core, wherein the shell is aluminum hydroxide, the middle layer is hydrated zinc borate, and the core is magnesium hydroxide;
the weight portion ratio of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide is 3: 2: 1.
The particle diameters of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide are all less than 20nm
And, the particle diameter of the flame retardant is: d50 is less than 60nm, and D90 is less than 100 nm.
The calcium carbonate is one or a mixture of heavy calcium carbonate, light calcium carbonate and composite calcium carbonate.
The stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organic tin stabilizer.
The lubricant is one or a mixture of paraffin, PE wax, stearic acid and calcium stearate.
Example 2:
a cabinet panel comprising a central core layer and an outer cladding layer, the outer cladding layer being clad on the outside of the central core layer by extrusion molding; the thickness of the outer cladding layer is 5mm, and the thickness of the central core layer is 3 mm;
the middle core layer comprises the following components in parts by weight: 120 parts of PVC resin, 15 parts of wood powder, 35 parts of calcium carbonate, 15 parts of a synergist, 3 parts of a foaming agent, 5 parts of a stabilizer, 2 parts of a coupling agent, 6 parts of a processing aid and 4 parts of a lubricant.
The outer coating comprises the following components in parts by weight: 80 parts of PVC resin, 55 parts of calcium carbonate, 15 parts of synergist, 10 parts of stabilizer, 3 parts of impact modifier, 2 parts of coupling agent, 6 parts of processing aid, 4 parts of lubricant and 8 parts of flame retardant.
The flame retardant comprises a shell, a middle layer and a core, wherein the shell is aluminum hydroxide, the middle layer is hydrated zinc borate, and the core is magnesium hydroxide;
the weight portion ratio of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide is 3: 2: 1.
The particle diameters of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide are all less than 20nm
And, the particle diameter of the flame retardant is: d50 is less than 60nm, and D90 is less than 100 nm.
The calcium carbonate is one or a mixture of heavy calcium carbonate, light calcium carbonate and composite calcium carbonate.
The stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organic tin stabilizer.
The lubricant is one or a mixture of paraffin, PE wax, stearic acid and calcium stearate.
Example 3
A cabinet panel comprising a central core layer and an outer cladding layer, the outer cladding layer being clad on the outside of the central core layer by extrusion molding; the thickness of the outer cladding layer is 3mm, and the thickness of the central core layer is 8 mm;
the middle core layer comprises the following components in parts by weight: 100 parts of PVC resin, 25 parts of wood powder, 25 parts of calcium carbonate, 25 parts of a synergist, 2 parts of a foaming agent, 7 parts of a stabilizer, 1.5 parts of a coupling agent, 8 parts of a processing aid and 3 parts of a lubricant.
The outer coating comprises the following components in parts by weight: 100 parts of PVC resin, 30 parts of calcium carbonate, 25 parts of synergist, 8 parts of stabilizer, 6 parts of impact modifier, 1.5 parts of coupling agent, 8 parts of processing aid, 3 parts of lubricant and 14 parts of flame retardant.
The flame retardant comprises a shell, a middle layer and a core, wherein the shell is aluminum hydroxide, the middle layer is hydrated zinc borate, and the core is magnesium hydroxide;
the weight portion ratio of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide is 3: 2: 1.
The particle diameters of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide are all less than 20nm
And, the particle diameter of the flame retardant is: d50 is less than 60nm, and D90 is less than 100 nm.
The calcium carbonate is one or a mixture of heavy calcium carbonate, light calcium carbonate and composite calcium carbonate.
The stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organic tin stabilizer.
The lubricant is one or a mixture of paraffin, PE wax, stearic acid and calcium stearate.
Comparative example 1
The surface of the middle core layer; the thickness of the outer cladding layer is 3mm, and the thickness of the central core layer is 8 mm;
the middle core layer comprises the following components in parts by weight: 100 parts of PVC resin, 25 parts of wood powder, 25 parts of calcium carbonate, 25 parts of a synergist, 2 parts of a foaming agent, 7 parts of a stabilizer, 1.5 parts of a coupling agent, 8 parts of a processing aid and 3 parts of a lubricant.
The outer coating comprises the following components in parts by weight: 100 parts of PVC resin, 30 parts of calcium carbonate, 25 parts of synergist, 8 parts of stabilizer, 6 parts of impact modifier, 1.5 parts of coupling agent, 8 parts of processing aid, 3 parts of lubricant and 14 parts of flame retardant.
Wherein the flame retardant is aluminum hydroxide.
The calcium carbonate is one or a mixture of heavy calcium carbonate, light calcium carbonate and composite calcium carbonate.
The stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organic tin stabilizer.
The lubricant is one or a mixture of paraffin, PE wax, stearic acid and calcium stearate.
Comparative example 2
The surface of the middle core layer; the thickness of the outer cladding layer is 3mm, and the thickness of the central core layer is 8 mm;
the middle core layer comprises the following components in parts by weight: 100 parts of PVC resin, 25 parts of wood powder, 25 parts of calcium carbonate, 25 parts of a synergist, 2 parts of a foaming agent, 7 parts of a stabilizer, 1.5 parts of a coupling agent, 8 parts of a processing aid and 3 parts of a lubricant.
The outer coating comprises the following components in parts by weight: 100 parts of PVC resin, 30 parts of calcium carbonate, 25 parts of synergist, 8 parts of stabilizer, 6 parts of impact modifier, 1.5 parts of coupling agent, 8 parts of processing aid, 3 parts of lubricant and 14 parts of flame retardant.
The flame retardant comprises a shell, a middle layer and a core, wherein the shell is aluminum hydroxide, the middle layer is hydrated zinc borate, and the core is magnesium hydroxide;
the weight portion ratio of the aluminum hydroxide, the hydrated zinc borate and the magnesium hydroxide is 3: 2: 1.
The calcium carbonate is one or a mixture of heavy calcium carbonate, light calcium carbonate and composite calcium carbonate.
The stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organic tin stabilizer.
The lubricant is one or a mixture of paraffin, PE wax, stearic acid and calcium stearate.
Table 1: mechanical property index of products of each example
Bending strength (MPa) Impact Strength (MPa)
Example 1 23.11 4.04
Example 2 23.52 4.13
Example 3 26.16 4.81
Comparative example 1 15.45 3.02
Comparative example 2 16.05 2.93
In the table, the mechanical properties are determined by adopting an universal mechanical experiment machine and referring to the national standard GB/T29418-2012 test standard for the physical and mechanical properties of the wood-plastic composite product.
Table 2: flame retardancy index of the products of each example
The flame retardant properties are shown in table 2;
rate of heat release (KW/m)2) Oxygen index
Example 1 203 36.1
Example 2 207 35.7
Example 3 198 36.9
Comparative example 1 368 32.1
Comparative example 2 398 31.8
In conclusion, the experimental results of the mechanical properties and the flame retardancy of the product prepared in example 3 are better than those of other examples, and the experimental results of the mechanical properties and the antibacterial properties of examples 1 to 3 are generally better than those of comparative examples 1 and 2.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A cabinet panel, comprising:
a middle core layer;
the outer cladding layer is coated on the outer surface of the middle core layer through extrusion molding;
the middle core layer comprises PVC resin, wood powder, calcium carbonate, a synergist, a foaming agent, a stabilizer, a coupling agent, a processing aid and a lubricant;
the outer coating comprises PVC resin, calcium carbonate, a synergist, a stabilizer, an impact modifier, a coupling agent, a processing aid, a lubricant and a flame retardant;
wherein the flame retardant comprises:
a housing: the shell component is aluminum hydroxide;
a middle layer, wherein the middle layer component is hydrated zinc borate;
the core, the said core ingredient is magnesium hydroxide;
and, the particle diameter of the flame retardant is: d50 is less than 60nm, and D90 is less than 100 nm.
2. The cabinet board as recited in claim 1, wherein the middle core layer comprises, in parts by weight: 80-120 parts of PVC resin, 15-35 parts of wood powder, 15-35 parts of calcium carbonate, 15-35 parts of a synergist, 1-3 parts of a foaming agent, 5-10 parts of a stabilizer, 1-2 parts of a coupling agent, 6-10 parts of a processing aid and 2-4 parts of a lubricant.
3. The cabinet panel according to claim 1, wherein the outer cladding comprises, in parts by weight: 80-120 parts of PVC resin, 15-55 parts of calcium carbonate, 15-35 parts of synergist, 5-10 parts of stabilizer, 3-8 parts of impact modifier, 1-2 parts of coupling agent, 6-10 parts of processing aid, 2-4 parts of lubricant and 8-20 parts of flame retardant.
4. The cabinet panel as defined in claim 1, wherein the inner core is attached to the middle layer with an adhesive, and the middle layer is attached to the outer shell with an adhesive.
5. The cabinet panel according to claim 1, wherein the adhesive is a hot melt adhesive.
6. The cabinet board according to claim 1, wherein the ratio of aluminum hydroxide, hydrated zincborate and magnesium hydroxide is 3: 2: 1 by weight.
7. The cabinet panel according to claim 1, wherein the aluminum hydroxide, hydrated zincborate and magnesium hydroxide each have a particle diameter of less than 20 nm.
8. The cabinet board as claimed in claim 1, wherein the outer clad layer has a thickness of 1-5 mm and the central core layer has a thickness of 3-15 mm.
9. The cabinet panel according to claim 1, wherein the stabilizer is one or a mixture of two of a calcium zinc stabilizer and an organotin stabilizer.
10. Cabinet panel according to claim 1, wherein the lubricant is a mixture of one or more of paraffin wax, PE wax, stearic acid, calcium stearate.
CN201911419791.0A 2019-12-31 2019-12-31 Cabinet board Pending CN111138778A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922838A (en) * 2012-11-17 2013-02-13 中国化学工程第十四建设有限公司 Three-layer coextruded PVC (polyvinylchloride) wood-plastic composite foam board and preparation method thereof
KR101283391B1 (en) * 2012-12-12 2013-07-08 유영화학(주) Manufacturing method for aramid fiber reinforced polyvinylchloride pipe
CN104861201A (en) * 2015-05-14 2015-08-26 大连理工大学 Method for preparing core-shell synergistic magnesium zinc composite flame retardants
CN108972785A (en) * 2018-06-29 2018-12-11 广西浙缘农业科技有限公司 Timber environment friendly aldehyde-free fire retardant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922838A (en) * 2012-11-17 2013-02-13 中国化学工程第十四建设有限公司 Three-layer coextruded PVC (polyvinylchloride) wood-plastic composite foam board and preparation method thereof
KR101283391B1 (en) * 2012-12-12 2013-07-08 유영화학(주) Manufacturing method for aramid fiber reinforced polyvinylchloride pipe
CN104861201A (en) * 2015-05-14 2015-08-26 大连理工大学 Method for preparing core-shell synergistic magnesium zinc composite flame retardants
CN108972785A (en) * 2018-06-29 2018-12-11 广西浙缘农业科技有限公司 Timber environment friendly aldehyde-free fire retardant

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