CN110259046B - Wood-plastic composite floor for market ground and manufacturing method thereof - Google Patents
Wood-plastic composite floor for market ground and manufacturing method thereof Download PDFInfo
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- CN110259046B CN110259046B CN201910399822.4A CN201910399822A CN110259046B CN 110259046 B CN110259046 B CN 110259046B CN 201910399822 A CN201910399822 A CN 201910399822A CN 110259046 B CN110259046 B CN 110259046B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/08—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood fibres, e.g. produced by tearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
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- 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
- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- 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
- C08J2465/00—Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Derivatives of such polymers
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- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/06—Unsaturated polyesters
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- 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
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses a wood-plastic composite floor for market ground and a manufacturing method thereof, wherein the wood-plastic composite floor comprises four components, namely a lignocellulose net lattice structure which is used as a matrix and is obtained by taking a trunk with bark and pine as a raw material through boiling softening, mechanical pressing and removal of water-soluble substances, a poly 3, 4-ethylenedioxythiophene/graphene composite material which is internally provided with fascia and has a static electricity removing function, a plastic body which is used as an adhesive and a structure adjusting material and is compounded by chopped glass fibers and unsaturated resin isophthalic acid resin, and polysiloxane crystals which are used as a surface wear-resistant coating. The invention has wear-resistant, tear-resistant, high-strength, water-resistant, acid-resistant and oxidation-resistant surface.
Description
Technical Field
The invention relates to the technical field of composite floors, in particular to a wood-plastic composite floor for market floors and a manufacturing method thereof.
Background
The wood-plastic composite material in the conventional technology is a novel composite material which is briskly developed in recent years at home and abroad, and means a plate or a section which is produced by mixing polyethylene, polypropylene, polyvinyl chloride and the like instead of a common resin adhesive with more than 50% of waste plant fibers such as wood flour, rice husks, straws and the like to form a novel wood material and then carrying out plastic processing technologies such as extrusion, mould pressing, injection molding and the like. The method is mainly used in industries such as building materials, furniture, logistics packaging and the like. The board is made by mixing plastic and wood powder according to a certain proportion and then performing hot extrusion molding, and is called as an extruded wood-plastic composite board.
However, all the existing wood-plastic composite materials have inherent defects, namely, the defects of low strength, poor surface scratch resistance, low internal bonding force, easy corrosion, easy aging, water intolerance, poor fire resistance and the like. And many people exist in the market, the circuit layout is complex, and the working density of electronic products is high, so if the conventional wood-plastic composite material is adopted, the static electricity is concentrated, the sudden combustion is easily caused when the friction generates heat, and the higher potential safety hazard is realized.
Therefore, a wood-plastic composite floor with wear-resistant surface, tear resistance, high strength, water resistance, acid resistance and oxidation resistance and a manufacturing method thereof are urgently needed in the market.
Disclosure of Invention
The invention aims to provide a wood-plastic composite floor with wear-resistant surface, tear resistance, high strength, water resistance, acid resistance and oxidation resistance and a manufacturing method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: a wood-plastic composite floor for market ground is composed of four components, namely a lignocellulose net lattice structure which is used as a matrix and is obtained by taking a pine trunk with bark as a raw material through boiling softening, mechanical pressing and removal of water-soluble substances, a poly 3, 4-ethylenedioxythiophene/graphene composite material with built-in fascia and a static electricity removing function, a plastic body which is used as an adhesive and a structure adjusting material and is compounded by chopped glass fibers and unsaturated resin isophthalic acid resin, and polysiloxane crystals which are used as a surface wear-resistant coating;
the manufacturing method of the wood-plastic composite floor for the market ground comprises the following steps:
1) prepreparation
Preparing raw materials: preparing 150-180 parts of a pinus massoniana trunk, 5-6 parts of a water solution with the graphene oxide concentration of 1mg/ml, 150-180 parts of a 40% N-butyl alcohol solution of ferric methyl benzene sulfonate, 5-6 parts of chopped glass fiber, 50-60 parts of isophthalic acid resin, enough 3, 4-ethylene dioxythiophene monomer, enough N, N-dimethylformamide, enough glucose powder and enough polysiloxane solution according to parts by weight;
2) preparation of lignocellulose net lattice structure
Cutting the trunk of the pinus massoniana prepared in the step 1) into sections, wherein the length of each section is 1.5-1.8 times of the diameter of the trunk of the pinus massoniana, completely soaking the pine sections in water, boiling the water until the water content of the trunk of the pinus massoniana is 25-30%, and pressing the water-absorbing trunk of the pinus massoniana into flat cakes by adopting a hydraulic device under the pressure of 80-100 MPa and the weight of the water-absorbing trunk of the pinus massoniana in the direction vertical to the axis of the trunk of the pinus massoniana to obtain a primary base body;
cutting the primary matrix obtained in the step one and cutting the primary matrix into square slices with the thickness of 1mm-1.5mm, completely immersing all the square slices into a polygalacturonase aqueous solution until enzymolysis is finished, rinsing an enzymolysis product by using water, and filtering out liquid to obtain a plurality of lignocellulose mesh-grid structures;
3) fascia composite sheet fabrication
Placing the graphene oxide aqueous solution prepared in the step I in the step 1) in the N, N-dimethylformamide prepared in the step I in the step 1), controlling the dosage of the N, N-dimethylformamide, keeping the mass concentration of the graphene oxide to be 0.19-0.22 mg/ml, and then carrying out ultrasonic treatment for 2 hours by adopting an ultrasonic device with the power of 500-600W to obtain a graphene dispersion liquid;
uniformly mixing the graphene dispersion liquid obtained in the step I with the 40% n-butyl alcohol solution of ferric toluenesulfonate prepared in the step 1), and continuing to perform ultrasonic treatment for 20-25 min to obtain a mixed dispersion liquid;
uniformly spraying the mixed dispersion liquid obtained in the step two onto the lignocellulose mesh grid structure obtained in the step 2), drying the lignocellulose mesh grid structure sprayed with the mixed dispersion liquid once at the temperature of 70-75 ℃ after spraying out liquid with the total volume of 1/6-1/5 of the mixed dispersion liquid each time, then spraying the mixed dispersion liquid for the next time, and sequentially circulating until the mixed dispersion liquid is completely sprayed and dried to obtain a base material to be treated;
placing the base material to be treated obtained in the step (III) in a chemical gas-phase polymerization device, introducing gas consisting of the 3, 4-ethylenedioxythiophene monomer prepared in the step (1) to obtain a polymerization reaction field, and reacting for 110-115 min to obtain a prefabricated base material;
fifthly, preparing the glucose powder prepared in the step 1) into an aqueous solution with the mass concentration of 4-5%, completely immersing the prefabricated base material obtained in the step (iv) into the aqueous solution of glucose, heating to 90-98 ℃ for reduction reaction, taking out the prefabricated base material after the reaction is carried out for 80-100 min, and drying to obtain the required fascia composite sheet;
4) preparation of wood-plastic composite floor main body
Laminating the fascia composite sheets obtained in the fifth step of the step 3) to a thickness of 7mm-10mm in a superposition mode that the fiber directions are sequentially vertical to each other and the surfaces are parallel to each other according to the original axial direction to obtain a main body to be glued;
mixing the chopped glass fibers prepared in the step 1) and isophthalic acid resin into a premixed molding compound, and gluing the main body to be glued obtained in the step 1 into a composite board with the thickness of 8-12 mm in a hot melting, infiltrating, extruding, mold filling, cooling, curing and forming mode to obtain the prefabricated wood-plastic floor;
thirdly, the polysiloxane solution prepared in the step 1) is coated on the upper surface of the prefabricated wood-plastic floor obtained in the step two in a spinning mode, infrared light is adopted to irradiate and accelerate solidification and crystallization after the coating is finished, the spinning-solidification process is continuously repeated for 5-6 times after the crystallization is finished, and the wood-plastic composite floor with the surface integrated with the wear-resistant coating of 8-10 mu m is obtained, and the wood-plastic composite floor is the wood-plastic composite floor which is required to be used for the ground of a market.
Compared with the prior art, the invention has the following advantages: (1) compared with the prior art, the invention adopts the concept completely different from the prior art, and integrates the performances of static electricity prevention, high strength, surface wear resistance, multidirectional stress resistance, agent pressure resistance, treading resistance and the like which are beneficial to the market environment by a reasonable and highly integrated process method while retaining the structural characteristics of the wood fiber, thereby obtaining the composite material with high integration and high pertinence (the floor of the invention can bear the concentrated load of 500Kg/m2 and the ultimate load of 1500Kg/m2, and accords with the national A-level non-combustible standard, the internal bonding strength is not lower than 15MPa, the static bending strength is not lower than 100MPa, and the free formaldehyde emission is detected to be negative). (2) The fascia material mainly applied to electric conduction and static resistance has excellent electrical performance (the electric conductivity is actually measured to be 27S/cm-32S/cm), mechanical performance, heat resistance, chemical corrosion resistance and forming performance are also quite excellent, the fascia material is integrated with wood fibers, the defects of surplus strength and insufficient flexibility of the dried wood fibers can be effectively overcome, meanwhile, the tolerance of the whole invention to anisotropic force is improved, and the visual response is that the anti-shearing performance of the fascia material is improved, namely, the fascia material can bear larger force parallel to the surface of a floor. (3) The invention is beneficial to replacing the conventional adhesive with the short glass fiber and unsaturated resin integrated plastic body, not only reduces the formaldehyde content, but also improves the integral bonding force, and simultaneously improves the plasticity of the appearance and the integral strength, and most importantly, improves the weather resistance and the corrosion resistance of the invention. (4) The trunk of the pine with the bark is used as a main matrix raw material, the design greatly improves the utilization rate of the wood body (without peeling and removing the damaged part) and only removes water-soluble components after the action of pectinase, so that not only crude fibers of the pine are retained, but also part of non-water-soluble organic matters are retained, wherein the pine is most beneficial to the invention, and a large amount of adhesive organic matters exist under the pine bark, and the organic matters are natural formaldehyde-free plant adhesives, so that the internal binding force, plasticity and toughness of the pine are further improved. (5) Although the polysiloxane crystal is a material with low friction coefficient with rubber, the surface friction performance of the polysiloxane crystal is similar to that of granular gravel due to the rough surface constructed on the basis of the porous fiber of the wood-plastic composite floor, the polysiloxane crystal has enough friction force for consumers to walk normally, and the surface of the polysiloxane crystal has good self-cleaning property and antifouling property due to the essential characteristic of a surface microcrystalline structure and the characteristic of a sparse material, so that the surface cleaning cost can be obviously reduced. Therefore, the invention has the characteristics of wear-resistant surface, tear resistance, high strength, water resistance, acid resistance and oxidation resistance.
Detailed Description
Example 1:
a wood-plastic composite floor for market ground is composed of four components, namely a lignocellulose net lattice structure which is used as a matrix and is obtained by taking a pine trunk with bark as a raw material through boiling softening, mechanical pressing and removal of water-soluble substances, a poly 3, 4-ethylenedioxythiophene/graphene composite material with built-in fascia and a static electricity removing function, a plastic body which is used as an adhesive and a structure adjusting material and is compounded by chopped glass fibers and unsaturated resin isophthalic acid resin, and polysiloxane crystals which are used as a surface wear-resistant coating;
the manufacturing method of the composite floor comprises the following steps
1) Prepreparation
Preparing raw materials: preparing 1500Kg of trunk of a pinus massoniana, 60Kg of aqueous solution with the concentration of graphene oxide of 1mg/ml, 1800Kg of 40% N-butanol solution of ferric methyl benzene sulfonate, 60Kg of chopped glass fiber, 600Kg of isophthalic acid resin, enough 3, 4-ethylene dioxythiophene monomer, enough N, N-dimethylformamide, enough glucose powder and enough polysiloxane solution according to parts by weight;
2) preparation of lignocellulose net lattice structure
Cutting the trunk of the pinus massoniana prepared in the step 1) into sections, wherein the length of each section is 1.5 times of the diameter of the trunk of the pinus massoniana, completely soaking the pine sections in water, boiling the water until the water content of the trunk of the pinus massoniana is 30%, pressing the water-absorbing trunk of the pinus massoniana into flat cakes by adopting a hydraulic device under the pressure of 80MPa and in the direction which is vertical to the axis of the trunk of the pinus massoniana to obtain a primary matrix;
cutting the primary matrix obtained in the step one and cutting the primary matrix into square slices with the thickness of 1mm-1.5mm, completely immersing all the square slices into a polygalacturonase aqueous solution until enzymolysis is finished, rinsing an enzymolysis product by using water, and filtering out liquid to obtain a plurality of lignocellulose mesh-grid structures;
3) fascia composite sheet fabrication
Placing the graphene oxide aqueous solution prepared in the step I in the step 1) in the N, N-dimethylformamide prepared in the step I in the step 1), controlling the dosage of the N, N-dimethylformamide, keeping the mass concentration of the graphene oxide to be 0.19-0.22 mg/ml, and then carrying out ultrasonic treatment for 2 hours by adopting an ultrasonic device with the power of 500-600W to obtain a graphene dispersion liquid;
uniformly mixing the graphene dispersion liquid obtained in the step I with the 40% n-butyl alcohol solution of ferric toluenesulfonate prepared in the step 1), and continuing to perform ultrasonic treatment for 20-25 min to obtain a mixed dispersion liquid;
uniformly spraying the mixed dispersion liquid obtained in the step two onto the lignocellulose mesh grid structure obtained in the step 2), drying the lignocellulose mesh grid structure sprayed with the mixed dispersion liquid once at the temperature of 70-75 ℃ after spraying out liquid with the total volume of 1/6-1/5 of the mixed dispersion liquid each time, then spraying the mixed dispersion liquid for the next time, and sequentially circulating until the mixed dispersion liquid is completely sprayed and dried to obtain a base material to be treated;
placing the base material to be treated obtained in the step (III) in a chemical gas-phase polymerization device, introducing gas consisting of the 3, 4-ethylenedioxythiophene monomer prepared in the step (1) to obtain a polymerization reaction field, and reacting for 110-115 min to obtain a prefabricated base material;
fifthly, preparing the glucose powder prepared in the step 1) into an aqueous solution with the mass concentration of 4-5%, completely immersing the prefabricated base material obtained in the step (iv) into the aqueous solution of glucose, heating to 90-98 ℃ for reduction reaction, taking out the prefabricated base material after the reaction is carried out for 80-100 min, and drying to obtain the required fascia composite sheet;
4) preparation of wood-plastic composite floor main body
Laminating the fascia composite sheets obtained in the fifth step of the step 3) to a thickness of 7mm-10mm in a superposition mode that the fiber directions are sequentially vertical to each other and the surfaces are parallel to each other according to the original axial direction to obtain a main body to be glued;
mixing the chopped glass fibers prepared in the step 1) and isophthalic acid resin into a premixed molding compound, and gluing the main body to be glued obtained in the step 1 into a composite board with the thickness of 8-12 mm in a hot melting, infiltrating, extruding, mold filling, cooling, curing and forming mode to obtain the prefabricated wood-plastic floor;
thirdly, the polysiloxane solution prepared in the step 1) is coated on the upper surface of the prefabricated wood-plastic floor obtained in the step two in a spinning mode, infrared light is adopted to irradiate and accelerate solidification and crystallization after the coating is finished, the spinning-solidification process is continuously repeated for 5-6 times after the crystallization is finished, and the wood-plastic composite floor with the surface integrated with the wear-resistant coating of 8-10 mu m is obtained, and the wood-plastic composite floor is the wood-plastic composite floor which is required to be used for the ground of a market.
The physical properties of the wood-plastic composite floor manufactured according to the invention are as follows: the conductive part can bear the concentrated load of 530Kg/m2 and the ultimate load of 1580Kg/m2, meets the national A-grade non-combustible standard, has the internal bonding strength of 17MPa, the static bending strength of 106MPa and the free formaldehyde release amount which is negative, and the conductivity of the conductive part is measured by 31.3S/cm.
Example 2:
the whole is in accordance with example 1, with the difference that:
the manufacturing method of the composite floor comprises the following steps
1) Prepreparation
Preparing raw materials: preparing 1800Kg of bark-pine trunk, 50Kg of aqueous solution with graphene oxide concentration of 1mg/ml, 1500Kg of 40% N-butanol solution of iron methylbenzenesulfonate, 50Kg of chopped glass fiber, 500Kg of isophthalic acid resin, enough 3, 4-ethylenedioxythiophene monomer, enough N, N-dimethylformamide, enough glucose powder and enough polysiloxane solution according to parts by weight;
2) preparation of lignocellulose net lattice structure
Cutting the trunk of the pinus massoniana prepared in the step 1) into sections, wherein the length of each section is 1.8 times of the diameter of the trunk of the pinus massoniana, completely soaking the pine sections in water, boiling the water until the water content of the trunk of the pinus massoniana is 25%, pressing the water-absorbing trunk of the pinus massoniana into flat cakes by adopting a hydraulic device under the pressure of 100MPa and in the direction which is vertical to the axis of the trunk of the pinus massoniana to obtain a primary matrix;
the physical properties of the wood-plastic composite floor manufactured according to the invention are as follows: the conductive part can bear the concentrated load of 572Kg/m2 and the limit load of 1640Kg/m2, meets the national A-grade non-combustible standard, has the internal bonding strength of 18MPa, the static bending strength of 122MPa, the free formaldehyde release amount is detected as negative, and the actual measurement of the conductivity of the conductive part is 27.6S/cm.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. The utility model provides a wood-plastic composite floor for market ground which characterized in that: the wood-plastic composite floor comprises four components, namely a wood cellulose net lattice structure which is used as a matrix and is obtained by taking a pinus massoniana trunk as a raw material through boiling softening, mechanical pressing and removal of water-soluble substances, a poly 3, 4-ethylenedioxythiophene/graphene composite material which is used as an internal fascia and has a static electricity removing function, a plastic body which is used as an adhesive and a structure adjusting material and is compounded by chopped glass fibers and unsaturated resin isophthalic acid resin, and polysiloxane crystals which are used as a surface wear-resistant coating;
the manufacturing method of the wood-plastic composite floor for the market ground comprises the following steps:
1) prepreparation
Preparing raw materials: preparing 150-180 parts of a pinus massoniana trunk, 5-6 parts of a water solution with the graphene oxide concentration of 1mg/ml, 150-180 parts of a 40% N-butyl alcohol solution of ferric methyl benzene sulfonate, 5-6 parts of chopped glass fiber, 50-60 parts of isophthalic acid resin, enough 3, 4-ethylene dioxythiophene monomer, enough N, N-dimethylformamide, enough glucose powder and enough polysiloxane solution according to parts by weight;
2) preparation of lignocellulose net lattice structure
Cutting the trunk of the pinus massoniana prepared in the step 1) into sections, wherein the length of each section is 1.5-1.8 times of the diameter of the trunk of the pinus massoniana, completely soaking the pine sections in water, boiling the water until the water content of the trunk of the pinus massoniana is 25-30%, and pressing the water-absorbing trunk of the pinus massoniana into flat cakes by adopting a hydraulic device under the pressure of 80-100 MPa and the weight of the water-absorbing trunk of the pinus massoniana in the direction vertical to the axis of the trunk of the pinus massoniana to obtain a primary base body;
cutting the primary matrix obtained in the step one and cutting the primary matrix into square slices with the thickness of 1mm-1.5mm, completely immersing all the square slices into a polygalacturonase aqueous solution until enzymolysis is finished, rinsing an enzymolysis product by using water, and filtering out liquid to obtain a plurality of lignocellulose mesh-grid structures;
3) fascia composite sheet fabrication
Placing the graphene oxide aqueous solution prepared in the step I in the step 1) in the N, N-dimethylformamide prepared in the step I in the step 1), controlling the dosage of the N, N-dimethylformamide, keeping the mass concentration of the graphene oxide to be 0.19-0.22 mg/ml, and then carrying out ultrasonic treatment for 2 hours by adopting an ultrasonic device with the power of 500-600W to obtain a graphene dispersion liquid;
uniformly mixing the graphene dispersion liquid obtained in the step I with the 40% n-butyl alcohol solution of ferric toluenesulfonate prepared in the step 1), and continuing to perform ultrasonic treatment for 20-25 min to obtain a mixed dispersion liquid;
uniformly spraying the mixed dispersion liquid obtained in the step two onto the lignocellulose mesh grid structure obtained in the step 2), drying the lignocellulose mesh grid structure sprayed with the mixed dispersion liquid once at the temperature of 70-75 ℃ after spraying out liquid with the total volume of 1/6-1/5 of the mixed dispersion liquid each time, then spraying the mixed dispersion liquid for the next time, and sequentially circulating until the mixed dispersion liquid is completely sprayed and dried to obtain a base material to be treated;
placing the base material to be treated obtained in the step (III) in a chemical gas-phase polymerization device, introducing gas consisting of the 3, 4-ethylenedioxythiophene monomer prepared in the step (1) to obtain a polymerization reaction field, and reacting for 110-115 min to obtain a prefabricated base material;
fifthly, preparing the glucose powder prepared in the step 1) into an aqueous solution with the mass concentration of 4-5%, completely immersing the prefabricated base material obtained in the step (iv) into the aqueous solution of glucose, heating to 90-98 ℃ for reduction reaction, taking out the prefabricated base material after the reaction is carried out for 80-100 min, and drying to obtain the required fascia composite sheet;
4) preparation of wood-plastic composite floor main body
Laminating the fascia composite sheets obtained in the fifth step of the step 3) to a thickness of 7mm-10mm in a superposition mode that the fiber directions are sequentially vertical to each other and the surfaces are parallel to each other according to the original axial direction to obtain a main body to be glued;
mixing the chopped glass fibers prepared in the step 1) and isophthalic acid resin into a premixed molding compound, and gluing the main body to be glued obtained in the step 1 into a composite board with the thickness of 8-12 mm in a hot melting, infiltrating, extruding, mold filling, cooling, curing and forming mode to obtain the prefabricated wood-plastic floor;
thirdly, the polysiloxane solution prepared in the step 1) is coated on the upper surface of the prefabricated wood-plastic floor obtained in the step two in a spinning mode, infrared light is adopted to irradiate and accelerate solidification and crystallization after the coating is finished, the spinning-solidification process is continuously repeated for 5-6 times after the crystallization is finished, and the wood-plastic composite floor with the surface integrated with the wear-resistant coating of 8-10 mu m is obtained, and the wood-plastic composite floor is the wood-plastic composite floor which is required to be used for the ground of a market.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103362288A (en) * | 2012-03-31 | 2013-10-23 | 嘉兴中集木业有限公司 | Composite floor and production method thereof |
| CN104327529A (en) * | 2014-11-04 | 2015-02-04 | 浙江红高梁木业有限公司 | New preparation method of novel composite resin wood floor material |
| CN108797948A (en) * | 2018-05-30 | 2018-11-13 | 湖州汇德集团有限公司 | A kind of production technology of composite floor board |
| CN108973283A (en) * | 2018-05-25 | 2018-12-11 | 中山圣洛迪新材料有限公司 | Outdoor composite wood-plastic floor and manufacturing method thereof |
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| WO2017156007A1 (en) * | 2016-03-08 | 2017-09-14 | Fortress Iron, Lp | Synthetic decking planks |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362288A (en) * | 2012-03-31 | 2013-10-23 | 嘉兴中集木业有限公司 | Composite floor and production method thereof |
| CN104327529A (en) * | 2014-11-04 | 2015-02-04 | 浙江红高梁木业有限公司 | New preparation method of novel composite resin wood floor material |
| CN108973283A (en) * | 2018-05-25 | 2018-12-11 | 中山圣洛迪新材料有限公司 | Outdoor composite wood-plastic floor and manufacturing method thereof |
| CN108797948A (en) * | 2018-05-30 | 2018-11-13 | 湖州汇德集团有限公司 | A kind of production technology of composite floor board |
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