CN114670294A - High-strength ecological plate and manufacturing process - Google Patents
High-strength ecological plate and manufacturing process Download PDFInfo
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- CN114670294A CN114670294A CN202210328961.XA CN202210328961A CN114670294A CN 114670294 A CN114670294 A CN 114670294A CN 202210328961 A CN202210328961 A CN 202210328961A CN 114670294 A CN114670294 A CN 114670294A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
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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
- B27K3/02—Processes; Apparatus
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09J161/14—Modified phenol-aldehyde condensates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a high-strength ecological plate and a manufacturing process thereof, relating to the technical field of building materials. When the high-strength ecological plate is prepared, firstly, triethoxysilane reacts with allyl alcohol glycidyl ether and then is mixed with ethanol to prepare a silane solution, hyperbranched polysilazane reacts with algae calcium to prepare modified algae calcium, sodium hydroxide, lignin, phenol and formaldehyde are mixed and reacted to prepare an ecological plate adhesive, the silane solution, the modified algae calcium and the ecological plate adhesive are uniformly mixed to prepare a mixed adhesive, paper with different colors or textures on the surface is placed in the mixed adhesive to be kept stand, the ecological plate surface is prepared after drying, the natural wood plate is pretreated and then is hot-pressed with the ecological plate surface and polished to prepare the high-strength ecological plate. The high-strength ecological plate prepared by the invention has good wear resistance and waterproof performance.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a high-strength ecological plate and a manufacturing process thereof.
Background
The ecological plate is a decorative plate which is formed by soaking paper with different colors or textures in an ecological plate resin adhesive, drying and curing the paper, paving the paper on the surfaces of a shaving board, a blockboard and the like, and carrying out hot pressing.
The ecological plate is widely applied to the fields of integral cabinets, interior decoration, indoor floors and the like. The material adopts an advanced coil production process, is low-carbon and energy-saving in the production process, has no pollution to the environment, has the characteristics of good decoration effect, economy, durability, no formaldehyde release and the like, and accords with the development trend of green low-carbon economy in China. Because the production materials of the ecological board available in China are limited, and particularly, the ecological board has a certain life cycle for the use of wood resources, the research on the development prospect and the production process of the ecological board needs to be emphasized, the production process of the ecological board is improved, and a wide development space is provided for the development of the ecological board.
Disclosure of Invention
The invention aims to provide a high-strength ecological plate and a manufacturing process thereof, and aims to solve the problems in the prior art.
The high-strength ecological plate is characterized in that a natural wood plate is arranged inside the high-strength ecological plate, and the outer surface of the high-strength ecological plate is an ecological plate surface.
Optimally, the ecological plate skin is prepared by uniformly mixing a silane solution, modified algae calcium and an ecological plate adhesive to prepare a mixed adhesive, placing paper with different colors or textures on the surface in the mixed adhesive, standing and drying.
Preferably, the silane solution is prepared by mixing triethoxy silane and allyl alcohol glycidyl ether after reaction with ethanol.
Preferably, the modified algae calcium is prepared by reacting hyperbranched polysilazane with algae calcium.
Preferably, the ecological plate adhesive is prepared by mixing and reacting sodium hydroxide, lignin, phenol and formaldehyde.
As optimization, the preparation method of the high-strength ecological plate mainly comprises the following preparation steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 4: 10-1: 5: 12, uniformly mixing, stirring for 50-60 min at 65-75 ℃ at 800-1000 r/min, adding phenol 2-3 times the mass of lignin and formaldehyde 4-5 times the mass of lignin, stirring for 3-5 h at 70-80 ℃ at 800-1000 r/min, and standing at 30-40 ℃ under 1-2 kPa until the viscosity reaches 100-200 mPas to prepare the ecological plate adhesive;
(2) mixing hyperbranched polysilazane and 90-95% ethanol in a mass ratio of 1: 3-1: 4, mixing and stirring at 800-1000 r/min for 2-3 min to prepare a steeping fluid, putting the algae calcium into a vacuum steeping machine, pumping the pressure to 1-10 Pa, adding the steeping fluid with the mass 3-4 times of the algae calcium, introducing nitrogen to enable the pressure to reach 10-20 kPa, standing at 10-20 ℃ for 10-15 min, taking out, stirring at normal temperature and normal pressure for 2-3 h at 800-1000 r/min, and drying at-1 to-10 ℃ for 6-8 h at 1-10 Pa to prepare modified algae calcium;
(3) mixing a silane solution, modified algae calcium and an ecological plate adhesive according to a mass ratio of 2: 1: 5-3: 1: 7, uniformly mixing to obtain a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 3-5 min, taking out, and naturally drying at normal temperature and normal pressure to obtain the ecological plate skin;
(4) pretreating the natural wood board, attaching the ecological board surface to the surface of the pretreated natural wood board, hot-pressing at 180-200 ℃ and 1.1-1.3 MPa in a nitrogen atmosphere for 50-60 min, cooling to room temperature, and polishing to obtain the high-strength ecological board.
As an optimization, the preparation method of the hyperbranched polysilazane in the step (2) comprises the following steps: mixing methyldiethylenesilane and n-hexane according to a mass ratio of 1: 4-1: 6, uniformly mixing, adding barium chloride with the mass of 0.03-0.05 of methyl divinyl silane, stirring and reacting for 4-6 hours at 65-75 ℃ at 800-1000 r/min, adding triethoxysilane with the mass of 3-4 times of the methyl divinyl silane, continuously stirring and reacting for 4-6 hours, and standing for 3-4 hours at 20-30 ℃ under 1-2 kPa to prepare the nano barium chloride.
As optimization, the preparation method of the silane solution in the step (3) comprises the following steps: and (2) mixing triethoxysilane, allyl alcohol glycidyl ether and n-hexane in a mass ratio of 1: 1: 4-1: 1: 6, uniformly mixing, adding barium chloride with the mass of 0.03-0.05 of that of triethoxysilane, stirring and reacting for 4-6 h at 65-75 ℃ and 800-1000 r/min, and standing for 3-4 h at 30-40 ℃ and 1-2 kPa to prepare epoxy triethoxysilane; epoxy triethoxy silane and 90-95% of ethanol by mass percent are mixed according to the mass ratio of 1: 3-1: 4 mixing and stirring at 800-1000 r/min for 2-3 min to prepare the product.
As optimization, the pretreatment method in the step (4) comprises the following steps: immersing the natural wood board with the smooth surface in a hydrochloric acid solution with the mass fraction of 3-5%, standing for 10-15 min, soaking and washing in pure water for 3-5 min, and drying at 60-70 ℃ for 3-4 h.
As an optimization, the polishing method in the step (4) comprises the following steps: polishing with a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.6-0.1 mu m.
Compared with the prior art, the invention has the following beneficial effects:
the preparation method comprises the steps of firstly reacting triethoxysilane with allyl alcohol glycidyl ether, then mixing the obtained product with ethanol to obtain a silane solution, reacting hyperbranched polycarbosilane with algae calcium to obtain modified algae calcium, mixing sodium hydroxide, lignin, phenol and formaldehyde to obtain an ecological board adhesive, uniformly mixing the silane solution, the modified algae calcium and the ecological board adhesive to prepare a mixed adhesive, placing paper with different colors or textures on the surface in the mixed adhesive for standing, drying to obtain an ecological board surface, pretreating a natural wood board, performing hot pressing on the natural wood board and the ecological board surface, and then polishing to obtain the high-strength ecological board.
Firstly, after the triethoxysilane reacts with allyl alcohol glycidyl ether, epoxy groups are arranged on the triethoxysilane, the triethoxy groups can be hydrolyzed to form silicon hydroxyl groups which are connected with inorganic phases, and the epoxy groups react with organic active groups at high temperature to form a cross-linked network structure, so that the overall cohesiveness is improved, and other components are protected, thereby improving the wear-resistant effect of the high-strength ecological plate; the hyperbranched polysilazane is combined on the pore canal and the surface of the modified calcium alginate, and has good oleophylic and hydrophobic properties, and can adsorb organic molecules and be hydrophobic, thereby improving the waterproof performance of the high-strength ecological board.
Secondly, sodium hydroxide, lignin, phenol and formaldehyde are mixed and reacted to prepare the ecological plate adhesive, the operation is simple, and the raw materials are natural; the natural wood board is pretreated, so that the surface active groups of the natural wood board are increased, the natural wood board can react with the epoxy groups on the epoxy triethoxy silane more easily, and the bonding property of an interface is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to more clearly illustrate the method provided by the present invention, the following examples are given, and the method for testing each index of the high-strength ecological plate prepared in the following examples is as follows:
abrasion resistance: the high-strength ecological plate obtained in each example and the comparative example material are in the same area shape, friction experiments are carried out on the surface under the same conditions, the surface is cleaned by absolute ethyl alcohol and then weighed, and the abrasion loss is measured and recorded.
Waterproof performance: the high-strength ecological plate obtained in each example and the comparative example material are in the same area shape, the surface is wetted with the same amount of pure water under the same condition, after the same time, vacuum freeze drying is carried out, and the weight gain is measured and recorded.
Example 1
A manufacturing process of a high-strength ecological plate mainly comprises the following process steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 4: 10, uniformly mixing, stirring at 65 ℃ and 800r/min for 60min, adding phenol with the mass 2 times that of lignin and formaldehyde with the mass 4 times that of the lignin, stirring at 70 ℃ and 800r/min for 5h, and standing at 30 ℃ and 1kPa until the viscosity reaches 200mPas to prepare the ecological plate adhesive;
(2) mixing methyldiethylenesilane and n-hexane according to a mass ratio of 1: 4, uniformly mixing, adding barium chloride with the mass of 0.03 percent of the methyldiethylenesilane, stirring and reacting for 6 hours at 65 ℃ and 800r/min, adding triethoxysilane with the mass of 3 times of the methyldiethylenesilane, continuously stirring and reacting for 6 hours, standing for 4 hours at 20 ℃ and 1kPa to prepare hyperbranched polycarbosilane, and mixing the hyperbranched polycarbosilane and 90 percent ethanol in mass percentage according to a mass ratio of 1: 3 mixing and stirring at 800r/min for 3min to prepare impregnation liquid, placing the algae calcium in a vacuum impregnator, pumping the pressure to 1Pa, adding the impregnation liquid with the mass 3 times of the algae calcium, introducing nitrogen to make the pressure reach 10kPa, standing at 10 ℃ for 15min, taking out, stirring at normal temperature and normal pressure at 800r/min for 3h, and drying at-1 ℃ and 1Pa for 8h to prepare modified algae calcium;
(3) and (2) mixing triethoxysilane, allyl alcohol glycidyl ether and n-hexane according to the mass ratio of 1: 1: 4, uniformly mixing, adding barium chloride with the mass of 0.03 of the triethoxysilane, stirring and reacting for 6 hours at 65 ℃ and 800r/min, and standing for 4 hours at 30 ℃ and 1kPa to obtain the epoxidized triethoxysilane; epoxy triethoxy silane and ethanol with the mass fraction of 90% are mixed according to the mass ratio of 1: 3, mixing and stirring for 3min at the speed of 800r/min to obtain a silane solution, and mixing the silane solution, the modified algae calcium and the ecological plate adhesive according to the mass ratio of 2: 1: 5, uniformly mixing to prepare a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 3min, taking out and naturally drying at normal temperature and normal pressure to prepare the ecological plate skin;
(4) immersing the natural wood board with a smooth surface in a hydrochloric acid solution with the mass fraction of 3%, standing for 15min, immersing and washing in pure water for 3min, drying at 60 ℃ for 4h to obtain a pretreated natural wood board, attaching the ecological board skin to the surface of the pretreated natural wood board, hot-pressing at 180 ℃ and 1.1MPa for 60min in a nitrogen atmosphere, cooling to room temperature, and polishing by using a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.3 mu m to obtain the high-strength ecological board.
Example 2
A manufacturing process of a high-strength ecological plate mainly comprises the following process steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 4.5: 11, uniformly mixing, stirring at 70 ℃ and 900r/min for 55min, adding phenol with the mass 2.5 times of that of lignin and formaldehyde with the mass 4.5 times of that of the lignin, stirring at 75 ℃ and 900r/min for 4h, and standing at 35 ℃ and 1.5kPa until the viscosity reaches 150mPas to prepare the ecological plate adhesive;
(2) mixing methyldiethylenesilane and n-hexane according to a mass ratio of 1: 5, uniformly mixing, adding barium chloride with the mass of 0.04 percent of the mass of the methyldiethylenesilane, stirring and reacting for 5 hours at 70 ℃ and 900r/min, adding triethoxysilane with the mass of 3.5 times of the mass of the methyldiethylenesilane, continuously stirring and reacting for 5 hours, standing for 3.5 hours at 25 ℃ and 1.5kPa to prepare hyperbranched polysilazane, and mixing the hyperbranched polysilazane with 93 percent of ethanol according to the mass ratio of 1: 3.5 mixing and stirring at 900r/min for 2.5min to prepare impregnation liquid, placing the algae calcium in a vacuum impregnator, pumping the pressure to 5Pa, adding the impregnation liquid with the mass 3.5 times of the algae calcium, introducing nitrogen to make the pressure reach 15kPa, standing at 15 ℃ for 12min, taking out, stirring at normal temperature and normal pressure at 900r/min for 2.5h, and drying at-5 ℃ and 5Pa for 7h to prepare modified algae calcium;
(3) and (2) mixing triethoxysilane, allyl alcohol glycidyl ether and n-hexane in a mass ratio of 1: 1: 5, uniformly mixing, adding barium chloride with the mass of 0.04 of the triethoxysilane, stirring and reacting for 5 hours at 70 ℃ and 900r/min, and standing for 3.5 hours at 35 ℃ and 1.5kPa to obtain the epoxidized triethoxysilane; epoxy triethoxy silane and ethanol with the mass fraction of 92% are mixed according to the mass ratio of 1: 3.5 mixing and stirring for 2.5min at the speed of 900r/min to obtain a silane solution, and mixing the silane solution, the modified algae calcium and the ecological plate adhesive according to the mass ratio of 2.5: 1: 6, uniformly mixing to prepare a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 4min, taking out and naturally drying at normal temperature and normal pressure to prepare the ecological plate skin;
(4) immersing the natural wood board with a smooth surface in a hydrochloric acid solution with the mass fraction of 4%, standing for 12min, immersing and washing in pure water for 4min, drying at 65 ℃ for 3.5h to obtain a pretreated natural wood board, attaching the ecological board skin to the surface of the pretreated natural wood board, hot-pressing at 190 ℃ and 1.2MPa for 55min in a nitrogen atmosphere, cooling to room temperature, and polishing by using a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.3 mu m to obtain the high-strength ecological board.
Example 3
A manufacturing process of a high-strength ecological plate mainly comprises the following process steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 5: 12, uniformly mixing, stirring at 75 ℃ for 50min at 1000r/min, adding phenol with the mass 3 times of that of lignin and formaldehyde with the mass 5 times of that of the lignin, stirring at 80 ℃ for 3h at 1000r/min, and standing at 40 ℃ under 2kPa until the viscosity reaches 100mPas to prepare the ecological plate adhesive;
(2) mixing methyldiethylenesilane and n-hexane according to a mass ratio of 1: 6, uniformly mixing, adding barium chloride with the mass of 0.05 of methyl divinyl silane, stirring and reacting for 4 hours at 75 ℃ and 1000r/min, adding triethoxysilane with the mass of 4 times of the methyl divinyl silane, continuously stirring and reacting for 6 hours, standing for 3 hours at 30 ℃ and 2kPa to prepare hyperbranched polycarbosilane, and mixing the hyperbranched polycarbosilane and 90% ethanol in mass percentage according to a mass ratio of 1: 3 mixing and stirring for 2min at 800/min to prepare impregnation liquid, placing the algae calcium in a vacuum impregnator, pumping the pressure to 10Pa, adding the impregnation liquid with the mass 4 times of the algae calcium, introducing nitrogen to enable the pressure to reach 20kPa, standing for 10min at 20 ℃, taking out, stirring for 3h at the normal temperature and the normal pressure at 1000r/min, and drying for 6h at-10 ℃ and 10Pa to prepare modified algae calcium;
(3) and (2) mixing triethoxysilane, allyl alcohol glycidyl ether and n-hexane in a mass ratio of 1: 1: 6, uniformly mixing, adding barium chloride with the mass of 0.05 of the triethoxysilane, stirring and reacting for 4 hours at 75 ℃ at 1000r/min, and standing for 3 hours at 40 ℃ under 2kPa to obtain the epoxidized triethoxysilane; epoxy triethoxy silane and ethanol with the mass fraction of 95% are mixed according to the mass ratio of 1: 4, mixing and stirring for 2min at the speed of 1000r/min to obtain a silane solution, and mixing the silane solution, the modified algae calcium and the ecological plate adhesive according to the mass ratio of 3: 1: 7, uniformly mixing to obtain a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 3min, taking out, and naturally drying at normal temperature and normal pressure to obtain the ecological plate skin;
(4) immersing the natural wood board with a smooth surface in a hydrochloric acid solution with the mass fraction of 5%, standing for 15min, immersing and washing in pure water for 3min, drying at 70 ℃ for 3h to obtain a pretreated natural wood board, attaching the ecological board skin to the surface of the pretreated natural wood board, hot-pressing at 200 ℃ and 1.3MPa for 50min in a nitrogen atmosphere, cooling to room temperature, and polishing by using a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.1 mu m to obtain the high-strength ecological board.
Comparative example 1
A manufacturing process of a high-strength ecological plate mainly comprises the following process steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 4.5: 11, uniformly mixing, stirring at 70 ℃ and 900r/min for 55min, adding phenol with the mass 2.5 times of that of lignin and formaldehyde with the mass 4.5 times of that of the lignin, stirring at 75 ℃ and 900r/min for 4h, and standing at 35 ℃ and 1.5kPa until the viscosity reaches 150mPas to prepare the ecological plate adhesive;
(2) and (2) mixing triethoxysilane, allyl alcohol glycidyl ether and n-hexane in a mass ratio of 1: 1: 5, uniformly mixing, adding barium chloride with the mass of 0.04 of the triethoxysilane, stirring and reacting for 5 hours at 70 ℃ and 900r/min, and standing for 3.5 hours at 35 ℃ and 1.5kPa to obtain the epoxidized triethoxysilane; epoxy triethoxy silane and ethanol with the mass fraction of 92% are mixed according to the mass ratio of 1: 3.5 mixing and stirring for 2.5min at the speed of 900r/min to obtain a silane solution, and mixing the silane solution, the algae calcium and the ecological plate adhesive according to the mass ratio of 2.5: 1: 6, uniformly mixing to prepare a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 4min, taking out and naturally drying at normal temperature and normal pressure to prepare the ecological plate skin;
(3) immersing the natural wood board with a smooth surface in a hydrochloric acid solution with the mass fraction of 4%, standing for 12min, immersing and washing in pure water for 4min, drying at 65 ℃ for 3.5h to obtain a pretreated natural wood board, attaching the ecological board skin to the surface of the pretreated natural wood board, hot-pressing at 190 ℃ and 1.2MPa for 55min in a nitrogen atmosphere, cooling to room temperature, and polishing by using a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.3 mu m to obtain the high-strength ecological board.
Comparative example 2
A manufacturing process of a high-strength ecological plate mainly comprises the following process steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 4.5: 11, uniformly mixing, stirring at 70 ℃ and 900r/min for 55min, adding phenol with the mass 2.5 times of that of lignin and formaldehyde with the mass 4.5 times of that of the lignin, stirring at 75 ℃ and 900r/min for 4h, and standing at 35 ℃ and 1.5kPa until the viscosity reaches 150mPas to prepare the ecological plate adhesive;
(2) and (2) mixing methyldiethylsilane and n-hexane according to the mass ratio of 1: 5, uniformly mixing, adding barium chloride with the mass of 0.04 percent of the mass of the methyldiethylenesilane, stirring and reacting for 5 hours at 70 ℃ and 900r/min, adding triethoxysilane with the mass of 3.5 times of the mass of the methyldiethylenesilane, continuously stirring and reacting for 5 hours, standing for 3.5 hours at 25 ℃ and 1.5kPa to prepare hyperbranched polysilazane, and mixing the hyperbranched polysilazane with 93 percent of ethanol according to the mass ratio of 1: 3.5 mixing and stirring at 900r/min for 2.5min to prepare impregnation liquid, placing the algae calcium in a vacuum impregnator, pumping the pressure to 5Pa, adding the impregnation liquid with the mass 3.5 times of the algae calcium, introducing nitrogen to make the pressure reach 15kPa, standing at 15 ℃ for 12min, taking out, stirring at normal temperature and normal pressure at 900r/min for 2.5h, and drying at-5 ℃ and 5Pa for 7h to prepare modified algae calcium;
(3) mixing triethoxysilane and 92% ethanol in a mass ratio of 1: 3.5 mixing and stirring for 2.5min at the speed of 900r/min to obtain a silane solution, and mixing the silane solution, the modified algae calcium and the ecological plate adhesive according to the mass ratio of 2.5: 1: 6, uniformly mixing to prepare a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 4min, taking out and naturally drying at normal temperature and normal pressure to prepare the ecological plate skin;
(4) immersing the natural wood board with a smooth surface in a hydrochloric acid solution with the mass fraction of 4%, standing for 12min, immersing and washing in pure water for 4min, drying at 65 ℃ for 3.5h to obtain a pretreated natural wood board, attaching the ecological board skin to the surface of the pretreated natural wood board, hot-pressing at 190 ℃ and 1.2MPa for 55min in a nitrogen atmosphere, cooling to room temperature, and polishing by using a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.3 mu m to obtain the high-strength ecological board.
Comparative example 3
A manufacturing process of a high-strength ecological plate mainly comprises the following process steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 4.5: 11, uniformly mixing, stirring at 70 ℃ and 900r/min for 55min, adding phenol with the mass 2.5 times of that of lignin and formaldehyde with the mass 4.5 times of that of the lignin, stirring at 75 ℃ and 900r/min for 4h, and standing at 35 ℃ and 1.5kPa until the viscosity reaches 150mPas to prepare the ecological plate adhesive;
(2) mixing triethoxysilane and 92% ethanol in a mass ratio of 1: 3.5 mixing and stirring for 2.5min at the speed of 900r/min to obtain a silane solution, and mixing the silane solution, the algae calcium and the ecological plate adhesive according to the mass ratio of 2.5: 1: 6, uniformly mixing to prepare a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 4min, taking out and naturally drying at normal temperature and normal pressure to prepare the ecological plate skin;
(3) immersing the natural wood board with a smooth surface in a hydrochloric acid solution with the mass fraction of 4%, standing for 12min, immersing and washing in pure water for 4min, drying at 65 ℃ for 3.5h to obtain a pretreated natural wood board, attaching the ecological board skin to the surface of the pretreated natural wood board, hot-pressing at 190 ℃ and 1.2MPa for 55min in a nitrogen atmosphere, cooling to room temperature, and polishing by using a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.3 mu m to obtain the high-strength ecological board.
Examples of effects
The following table 1 shows the performance analysis results of the wear resistance and the water resistance of the high-strength ecological plates in examples 1 to 3 and comparative examples 1 to 3 of the present invention:
| amount of wear | Increase in weight | Amount of wear | Increase in weight | ||
| Example 1 | 0.35g | 0.18g | Comparative example 1 | 0.36g | 0.38g |
| Example 2 | 0.32g | 0.17g | Comparative example 2 | 0.51g | 0.29g |
| Example 3 | 0.33g | 0.17g | Comparative example 3 | 0.58g | 0.44g |
TABLE 1
As can be seen from the comparison of the experimental data of examples 1-3 and comparative columns 1-3 in the table 1, the high-strength ecological plate prepared by the invention has good wear resistance and waterproof performance.
From the comparison of the experimental data of the examples 1, 2 and 3 and the comparative example 1, it can be found that the weight gain of the examples 1, 2 and 3 compared with the comparative example 1 is small, which indicates that after the algae calcium is modified, the hyperbranched polycarbosilane is bonded on the pore canal and the surface of the algae calcium, and the hyperbranched polycarbosilane has good oleophylic and hydrophobic properties, can adsorb organic molecules and is hydrophobic, so that the waterproof performance of the high-strength ecological plate is improved; from the comparison of the experimental data of examples 1, 2, 3 and comparative example 2, it can be seen that the abrasion loss and weight gain of examples 1, 2, 3 are less than those of comparative example 2, which indicates that the epoxidation of triethoxysilane to obtain triethoxysilane can bond with modified calcium alginate and pretreated natural wood board or other organic active groups to form a cross-linked network structure, thereby improving the overall adhesion and protecting other components, thereby improving the abrasion resistance of the high-strength ecological board.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The high-strength ecological plate is characterized in that a natural wood plate is arranged inside the high-strength ecological plate, and the outer surface of the high-strength ecological plate is an ecological plate surface.
2. The high-strength ecological plate according to claim 1, wherein the ecological plate skin is prepared by uniformly mixing a silane solution, modified algae calcium and an ecological plate adhesive to prepare a mixed adhesive, placing paper with different colors or textures on the surface in the mixed adhesive, standing, and drying.
3. The high-strength ecological plate as claimed in claim 2, wherein the silane solution is prepared by mixing triethoxy silane and allyl alcohol glycidyl ether after reaction with ethanol.
4. The high-strength ecological plate according to claim 2, wherein the modified algae calcium is prepared by reacting hyperbranched polysilazane with algae calcium.
5. The high-strength ecological plate according to claim 2, wherein the ecological plate adhesive is prepared by mixing and reacting sodium hydroxide, lignin, phenol and formaldehyde.
6. The manufacturing process of the high-strength ecological plate as claimed in claim 1, wherein the manufacturing process of the high-strength ecological plate comprises the following process steps:
(1) mixing sodium hydroxide, lignin and water according to a mass ratio of 1: 4: 10-1: 5: 12, uniformly mixing, stirring for 50-60 min at 65-75 ℃ at 800-1000 r/min, adding phenol 2-3 times the mass of lignin and formaldehyde 4-5 times the mass of lignin, stirring for 3-5 h at 70-80 ℃ at 800-1000 r/min, and standing at 30-40 ℃ under 1-2 kPa until the viscosity reaches 100-200 mPas to prepare the ecological plate adhesive;
(2) mixing hyperbranched polysilazane and 90-95% ethanol in a mass ratio of 1: 3-1: 4, mixing and stirring at 800-1000 r/min for 2-3 min to prepare a steeping fluid, putting the algae calcium into a vacuum steeping machine, pumping the pressure to 1-10 Pa, adding the steeping fluid with the mass 3-4 times of the algae calcium, introducing nitrogen to enable the pressure to reach 10-20 kPa, standing at 10-20 ℃ for 10-15 min, taking out, stirring at normal temperature and normal pressure for 2-3 h at 800-1000 r/min, and drying at-1 to-10 ℃ for 6-8 h at 1-10 Pa to prepare modified algae calcium;
(3) mixing a silane solution, modified algae calcium and an ecological plate adhesive according to a mass ratio of 2: 1: 5-3: 1: 7, uniformly mixing to obtain a mixed adhesive, soaking paper with different colors or textures on the surface in the mixed adhesive for 3-5 min, taking out, and naturally drying at normal temperature and normal pressure to obtain the ecological plate skin;
(4) pretreating the natural wood board, attaching the ecological board surface to the surface of the pretreated natural wood board, hot-pressing at 180-200 ℃ and 1.1-1.3 MPa in a nitrogen atmosphere for 50-60 min, cooling to room temperature, and polishing to obtain the high-strength ecological board.
7. The manufacturing process of the high-strength ecological plate according to claim 6, wherein the preparation method of the hyperbranched polysilazane in the step (2) comprises the following steps: mixing methyldiethylenesilane and n-hexane according to a mass ratio of 1: 4-1: 6, uniformly mixing, adding barium chloride with the mass of 0.03-0.05 of methyl divinyl silane, stirring and reacting for 4-6 hours at 65-75 ℃ at 800-1000 r/min, adding triethoxysilane with the mass of 3-4 times of the methyl divinyl silane, continuously stirring and reacting for 4-6 hours, and standing for 3-4 hours at 20-30 ℃ under 1-2 kPa to prepare the nano barium chloride.
8. The manufacturing process of the high-strength ecological plate as claimed in claim 6, wherein the silane solution in the step (3) is prepared by: and (2) mixing triethoxysilane, allyl alcohol glycidyl ether and n-hexane in a mass ratio of 1: 1: 4-1: 1: 6, uniformly mixing, adding barium chloride with the mass of 0.03-0.05 of that of triethoxysilane, stirring and reacting for 4-6 h at 65-75 ℃ and 800-1000 r/min, and standing for 3-4 h at 30-40 ℃ and 1-2 kPa to prepare epoxy triethoxysilane; epoxy triethoxy silane and 90-95% of ethanol by mass percent are mixed according to the mass ratio of 1: 3-1: 4 mixing and stirring at 800-1000 r/min for 2-3 min to prepare the product.
9. The manufacturing process of the high-strength ecological plate according to claim 6, wherein the pretreatment in the step (4) comprises the following steps: immersing the natural wood board with the smooth surface in a hydrochloric acid solution with the mass fraction of 3-5%, standing for 10-15 min, soaking and washing in pure water for 3-5 min, and drying at 60-70 ℃ for 3-4 h.
10. The manufacturing process of the high-strength ecological plate according to claim 6, wherein the polishing method in the step (4) comprises the following steps: polishing with a polishing wheel rotating at a high speed to enable the surface roughness to reach Ra0.6-0.1 mu m.
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