CN111844342A - Preparation method of waterproof flame-retardant shaving board - Google Patents
Preparation method of waterproof flame-retardant shaving board Download PDFInfo
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- CN111844342A CN111844342A CN202010673113.3A CN202010673113A CN111844342A CN 111844342 A CN111844342 A CN 111844342A CN 202010673113 A CN202010673113 A CN 202010673113A CN 111844342 A CN111844342 A CN 111844342A
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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
- B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
-
- 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
- B27K3/12—Impregnating by coating the surface of the wood with an impregnating paste
-
- 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
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- 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
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- 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
-
- 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
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- 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
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
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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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
-
- 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
- B27K2200/00—Wooden materials to be treated
- B27K2200/15—Pretreated particles or fibres
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- 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
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- 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
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- 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
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
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Abstract
The invention discloses a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps: dispersing a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate in water, adding soybean protein powder, stirring uniformly, adding alkali, stirring, performing microwave treatment, adjusting pH to be neutral, and performing three times of ultrahigh pressure treatment after vacuum packaging to obtain a material B; mixing the material B with urea, stirring uniformly, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and stirring uniformly to obtain an adhesive; uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate to the composite wood shavings, and drying to obtain pretreated wood shavings; and uniformly mixing the adhesive and the pretreated wood shavings, paving, and performing hot press molding twice. The shaving board prepared by the preparation method of the waterproof flame-retardant shaving board is excellent in flame retardant property, good in water resistance and long in service life.
Description
Technical Field
The invention relates to the technical field of plates, in particular to a preparation method of a waterproof flame-retardant shaving board.
Background
The particle board is an artificial board which is made by using small diameter wood, brush wood, wood processing and agricultural and forestry residues, waste wood and the like as raw materials and processing the raw materials through the processes of wood shaving preparation, drying, glue mixing, paving and forming, hot pressing and the like, is also called as a particle board, has the characteristics of heat preservation, heat insulation, sound absorption, insulation and the like, and is widely applied to the fields of furniture, decoration, automobiles, ships and the like at present. On one hand, the main constituent elements of wood are carbon, hydrogen, oxygen and the like, and the wood is inflammable, so that a shaving board made of the wood has great fire safety hazard in the using process, and the application of the wood is limited; on the other hand, the water resistance of the wood and the adhesive used by the wood is poor, and the existing shaving board is easy to expand due to moisture in a damp and hot environment, so that the deformation and deterioration of the board are caused, and the application of the shaving board is severely limited, so that the development of the shaving board with certain flame retardant property and water resistance has very important significance.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a preparation method of a waterproof flame-retardant shaving board, the process is simple, and the obtained shaving board is excellent in flame retardant property, good in water resistance and long in service life.
The invention provides a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps:
s1, dispersing a flame retardant in water, adding soy protein powder, stirring uniformly, adding alkali, stirring for 10-20min, heating to 55-65 ℃ by microwave, treating for 8-20min, and adjusting the pH value to be neutral to obtain a material A; wherein the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate;
s2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 1-3min under the pressure of 200-;
s3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive;
s4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, and drying to obtain pretreated wood shavings; wherein the composite wood shavings are a mixture of paulownia wood shavings, poplar wood shavings and reed straw shavings;
S5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the specific process of the hot press molding comprises one-time hot press molding and two-time hot press molding, wherein the temperature of the one-time hot press molding is 180-200 ℃, and the time is 20-38S/mm: the temperature of the secondary hot-press molding is 150 ℃ and 170 ℃, and the time is 55-70 s/mm.
Preferably, in S1, the weight ratio of the flame retardant, the soybean protein powder, the alkali and the water is 5-9: 100: 5-9: 300-500.
Preferably, in S1, the weight ratio of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate is 2-5: 3-9: 3-11: 1-4.
Preferably, in S2, the temperature of the ultrahigh pressure treatment is 20-30 ℃, and the medium is water.
Preferably, in S3, the weight ratio of the material B, urea, acrylic emulsion, carboxylated styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker is 70-85: 3-7: 5-8: 1-5: 0.5-2: 2-6: 1-4: 1-3: 2-5: 0.5-1.4.
Preferably, in S4, the weight ratio of dimethyl methylphosphonate to silicone oil to diethyl ethylphosphate is 3-9: 9-20: 1-5, wherein the total weight of the dimethyl methylphosphonate, the silicone oil and the diethyl ethylphosphate is 5-10 wt% of the weight of the composite wood shavings.
Preferably, in S4, drying at 40-50 deg.C to water content of 7-9 wt% to obtain pretreated wood shavings; the composite wood shavings are paulownia wood shavings, poplar wood shavings and reed straw wood shavings according to the weight ratio of 5-12: 1-2: 0.5-2 of the mixture.
Preferably, in S5, the weight of the adhesive is 9-15 wt% of the weight of the pre-treated wood shavings.
Preferably, in S6, the unit pressure ranges of the first hot press forming and the second hot press forming are both 1.5-3MPa, and the pressure of the first hot press forming is greater than or equal to the pressure of the second hot press forming.
Preferably, in S3, the material B is a modified material B; the modified material B is prepared according to the following process: uniformly mixing hexafluoroglutaric acid and triethylene tetramine, heating to 110-.
Preferably, in S1, the alkali is one or more of sodium hydroxide, potassium hydroxide, sodium carbonate and calcium hydroxide.
Preferably, in S1, the power of the microwave treatment is 400-.
Preferably, in the preparation process of the modified material B, the molar ratio of the hexafluoroglutaric acid to the triethylene tetramine is 1: 1.05-1.1; the mol ratio of the hexafluoroglutaric acid to the epichlorohydrin is 1: 0.3-0.8; the weight of the modifier is 0.3-0.8% of the weight of the material B.
In the preparation process of the modified material B, specifically selecting hexafluoroglutaric acid and triethylene tetramine as raw materials, controlling the reaction conditions to enable carboxyl in hexafluoroglutaric acid to react with primary amine in triethylene tetramine, adding epoxy chloropropane, reacting with secondary amine groups, and crosslinking to form molecules with stable network structures and simultaneously generate a large amount of azetidinium groups, wherein the azetidinium groups can react with active groups in bean flour and wood to form a three-dimensional network structure, so that the bonding strength of the board is improved, and meanwhile, fluorine is introduced to play a synergistic effect, so that the water resistance of the adhesive is improved.
Preferably, the acrylic emulsion of the present invention may have a solid content of 49%.
Preferably, the carboxylic styrene-butadiene latex of the present invention may have a solid content of 49%.
In the preparation method of the waterproof flame-retardant shaving board, the soybean protein powder is subjected to alkali modification, microwave modification, ultrahigh pressure treatment modification and urea modification, the synergistic effect of various modification methods is exerted, the crystal structure of protein is completely destroyed, polypeptide is spread, the exposure of hydrophobic groups on the surface of protein molecules is promoted, the cross-linking density of a protein film is high, the water absorption rate and the dissolution rate are reduced, the water resistance and the bonding property of the soybean protein are improved, the stability and the solubility of the soybean protein are improved, an interpenetrating network structure is formed by adding the acrylic emulsion, the carboxylic styrene-butadiene latex and the glycerol triglycidyl ether, the toughness and the bonding property of an adhesive are improved, a uniform, compact and continuous adhesive film can be formed in the curing process, and the bonding strength of the shaving board is improved; after montmorillonite is added, soybean molecules are adsorbed on the middle layer of the montmorillonite through hydrogen bonds and electrostatic action, a reservoir structure is formed through physical crosslinking, and the reservoir structure is matched with basalt fibers, perlite powder, light calcium carbonate powder and acetylated nano cellulose whiskers, so that the water-resistant bonding strength of the plywood is improved, and the water-resistant bonding performance is obvious; the soybean adhesive containing flame retardants of zinc borate, melamine cyanurate, aluminum hydroxide and dimethylphenyl phosphate is selected, and in the preparation process, the flame retardants are added into water, and then soybean protein powder is added, so that the flame retardants are uniformly dispersed in a system and are not easy to form agglomeration on the surface of a board, and meanwhile, hydrogen bonds in protein are destroyed, so that the adhesive bonding of the adhesive and wood is promoted, and the wood shavings are treated by taking dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate as raw materials, so that the synergistic effect of various flame retardants is exerted, and the flame retardant property of the board is remarkably improved; in the hot pressing process, the temperature and time of hot pressing are controlled, so that the adhesive is completely cured and is not embrittled in the hot pressing process, uniform adhesive layer bonding is formed, rapid evaporation of water is reduced, and the bubbling phenomenon is avoided while the bonding strength is improved.
The flame retardance of the shaving board prepared by the invention reaches the flame retardant B1 level; the limit oxygen index of the shaving board prepared by the invention is tested according to the standard of GB/T2406.2-2009, and the test shows that the limit oxygen index is 47-50.2%; the physical and mechanical properties are as follows (GB/T17657-2013): the elastic modulus is more than or equal to 2521MPa, the static bending strength is more than or equal to 22.4MPa, the internal bonding strength is more than or equal to 0.89MPa, and the water absorption thickness expansion rate is 2.7-3.1%.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The invention provides a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps:
s1, dispersing a flame retardant in water, adding soy protein powder, stirring uniformly, adding alkali, stirring for 10min, heating to 65 ℃ by microwave, treating for 8min, and adjusting the pH value to be neutral to obtain a material A; wherein the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate;
s2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 2min under the pressure of 200MPa, carrying out ultrahigh pressure treatment for 3min under the pressure of 550MPa, then carrying out ultrahigh pressure treatment for 40S under the pressure of 600MPa, and taking out the material A from the package to obtain a material B;
S3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive;
s4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, and drying to obtain pretreated wood shavings; wherein the composite wood shavings are a mixture of paulownia wood shavings, poplar wood shavings and reed straw shavings;
s5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the hot press molding comprises a primary hot press molding process and a secondary hot press molding process, the primary hot press molding process is carried out at 180 ℃, and the time is 38S/mm: the temperature of the secondary hot press molding is 150 ℃, and the time is 70 s/mm.
Example 2
The invention provides a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps:
s1, dispersing a flame retardant in water, adding soy protein powder, stirring uniformly, adding alkali, stirring for 20min, heating to 55 ℃ by microwave, treating for 20min, and adjusting the pH value to be neutral to obtain a material A; wherein the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate;
S2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 1min under the pressure of 250MPa, carrying out ultrahigh pressure treatment for 2min under the pressure of 500MPa, carrying out ultrahigh pressure treatment for 30S under the pressure of 640MPa, and taking out the material A from the package to obtain a material B;
s3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive;
s4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, and drying to obtain pretreated wood shavings; wherein the composite wood shavings are a mixture of paulownia wood shavings, poplar wood shavings and reed straw shavings;
s5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the hot press molding comprises a primary hot press molding process and a secondary hot press molding process, the primary hot press molding process is carried out at the temperature of 200 ℃ for 20S/mm: the temperature of the secondary hot press molding is 170 ℃, and the time is 55 s/mm.
Example 3
The invention provides a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps:
s1, dispersing a flame retardant in water, adding soy protein powder, stirring uniformly, adding alkali, stirring for 12min, heating to 59 ℃ by microwave, treating for 16min, and adjusting the pH value to be neutral to obtain a material A; wherein the weight ratio of the flame retardant, the soybean protein powder, the alkali and the water is 9: 100: 5: 300, respectively; the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate, and the weight ratio of the zinc borate to the melamine cyanurate to the aluminum hydroxide to the ditolyl phosphate is 2: 7: 3: 1;
s2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 3min under the pressure of 350MPa, carrying out ultrahigh pressure treatment for 2.5min under the pressure of 400MPa, carrying out ultrahigh pressure treatment for 60S under the pressure of 605MPa, and taking out the material A from the package to obtain a material B;
s3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive; wherein the weight ratio of the material B, urea, acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker is 70: 7: 5: 5: 0.5: 6: 1: 3: 2: 1;
S4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, and drying the composite wood shavings at 40 ℃ until the water content is 9 wt% to obtain pretreated wood shavings; wherein the weight ratio of dimethyl methylphosphonate to silicone oil to diethyl ethylphosphate is 3: 11: 1, and the total weight of the dimethyl methylphosphonate, the silicone oil and the diethyl ethylphosphate is 5 wt% of the weight of the composite wood shavings; the composite wood shavings are paulownia wood shavings, poplar wood shavings and reed straw wood shavings according to the weight ratio of 5: 2: 0.8 of a mixture;
s5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank; wherein the weight of the adhesive is 9 wt% of the weight of the pretreated wood shavings;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the hot press molding comprises a primary hot press molding process and a secondary hot press molding process, the primary hot press molding process is carried out at 190 ℃ for 26S/mm: the temperature of the secondary hot press molding is 155 ℃, and the time is 58 s/mm; the unit pressure of the primary hot-press molding and the unit pressure of the secondary hot-press molding are both 1.5 MPa.
Example 4
The invention provides a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps:
S1, dispersing the flame retardant in water, adding the soybean protein powder, stirring uniformly, then adding the alkali, stirring for 18min, heating to 62 ℃ by microwave, treating for 12min, and adjusting the pH value to be neutral to obtain a material A; wherein the weight ratio of the flame retardant, the soybean protein powder, the alkali and the water is 5: 100: 9: 500, a step of; the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate; the weight ratio of the zinc borate to the melamine cyanurate to the aluminum hydroxide to the xylenyl phosphate is 5: 3: 7: 4;
s2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 1.5min under the pressure of 330MPa, carrying out ultrahigh pressure treatment for 2min under the pressure of 480MPa, then carrying out ultrahigh pressure treatment for 50S under the pressure of 610MPa, and taking out the material A from the package to obtain a material B; wherein the temperature of the ultrahigh pressure treatment is 30 ℃, and the medium is water;
s3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive; wherein the weight ratio of the material B, urea, acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker is 85: 3: 8: 1: 1: 4: 4: 1: 5: 0.5;
S4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, taking out the composite wood shavings, and drying the composite wood shavings at 50 ℃ until the water content is 7 wt% to obtain pretreated wood shavings; wherein the weight ratio of dimethyl methylphosphonate to silicone oil to diethyl ethylphosphate is 7: 9: 5, the total weight of the dimethyl methylphosphonate, the silicone oil and the diethyl ethylphosphate is 10 wt% of the weight of the composite wood shavings; the composite wood shavings are paulownia wood shavings, poplar wood shavings and reed straw wood shavings according to the weight ratio of 12: 1: 2;
s5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank; wherein the weight of the adhesive is 15 wt% of the weight of the pretreated wood shavings;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the hot press molding comprises a primary hot press molding process and a secondary hot press molding process, the primary hot press molding process is carried out at 186 ℃, and the time is 31S/mm: the temperature of the secondary hot press molding is 163 ℃, and the time is 67 s/mm; the unit pressure of the primary hot-press molding is 3MPa, and the unit pressure of the secondary hot-press molding is 2 MPa.
Example 5
The invention provides a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps:
S1, dispersing a flame retardant in water, adding soy protein powder, stirring uniformly, adding alkali, stirring for 18min, heating to 59 ℃ by microwave, treating for 15min, and adjusting the pH value to be neutral to obtain a material A; wherein the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate; the weight ratio of the flame retardant, the soybean protein powder, the alkali and the water is 7: 100: 6: 470, respectively; the weight ratio of the zinc borate to the melamine cyanurate to the aluminum hydroxide to the xylenyl phosphate is 3: 9: 11: 4;
s2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 3min under the pressure of 220MPa, carrying out ultrahigh pressure treatment for 2.4min under the pressure of 430MPa, then carrying out ultrahigh pressure treatment for 38S under the pressure of 610MPa, and taking out the material A from the package to obtain a material B; wherein the temperature of the ultrahigh pressure treatment is 26 ℃, and the medium is water;
s3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive; wherein the weight ratio of the material B, urea, acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker is 77: 5: 6: 2: 2: 2: 2: 1: 4.6: 1.4; the material B is a modified material B; the modified material B is prepared according to the following process: uniformly mixing hexafluoroglutaric acid and triethylene tetramine, heating to 110 ℃, keeping the temperature and stirring for 15min, heating to 155 ℃, keeping the temperature and stirring for 20min, heating to 175 ℃, keeping the temperature and stirring for 60min, cooling to 90 ℃, adding boiling water to adjust the solid content to 30 wt%, adding epoxy chloropropane, adjusting the temperature to 45 ℃, keeping the temperature, adding ethanolamine after the viscosity reaches 160mPa.s, adjusting the pH to 3.3, cooling to room temperature to obtain a modifier, mixing the modifier with a material B, and stirring at room temperature for 20min to obtain a modified material B;
S4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, and drying the composite wood shavings at 44 ℃ until the water content is 8.6 wt% to obtain pretreated wood shavings; wherein the weight ratio of the dimethyl methylphosphonate to the silicone oil to the diethyl ethylphosphate is 9: 20: 2, the total weight of the dimethyl methylphosphonate, the silicone oil and the diethyl ethylphosphate is 6 wt% of the weight of the composite wood shavings; the composite wood shavings are a mixture of paulownia wood shavings, poplar wood shavings and reed straw shavings, and the weight ratio of the paulownia wood shavings to the poplar wood shavings to the reed straw shavings is 8: 1.8: 0.5;
s5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank; wherein the weight of the adhesive is 14 wt% of the weight of the pretreated wood shavings;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the hot press molding comprises a first hot press molding and a second hot press molding, the temperature of the first hot press molding is 188 ℃, and the time is 33S/mm: the temperature of the secondary hot press molding is 155 ℃, and the time is 67 s/mm; the unit pressure of the primary hot-press molding is 2.7MPa, and the unit pressure of the secondary hot-press molding is 1.7 MPa.
Example 6
The invention provides a preparation method of a waterproof flame-retardant shaving board, which comprises the following steps:
s1, dispersing a flame retardant in water, adding soy protein powder, stirring uniformly, adding alkali, stirring for 11min, heating to 62 ℃ by microwave, treating for 9min, and adjusting the pH value to be neutral to obtain a material A; wherein the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate;
s2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 1min under the pressure of 310MPa, carrying out ultrahigh pressure treatment for 2min under the pressure of 540MPa, carrying out ultrahigh pressure treatment for 56S under the pressure of 640MPa, and taking out the material A from the package to obtain a material B;
s3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive;
s4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, and drying to obtain pretreated wood shavings; wherein the composite wood shavings are a mixture of paulownia wood shavings, poplar wood shavings and reed straw shavings;
S5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the hot press molding comprises a primary hot press molding and a secondary hot press molding, the primary hot press molding is carried out at 190 ℃ for 25S/mm: the temperature of the secondary hot press molding is 165 ℃, and the time is 58 s/mm;
wherein in S1, the weight ratio of the flame retardant, the soybean protein powder, the alkali and the water is 6: 100: 8.7: 350 of (a); the weight ratio of the zinc borate to the melamine cyanurate to the aluminum hydroxide to the xylenyl phosphate is 4: 7: 3: 3;
in S2, the temperature of the ultrahigh pressure treatment is 28 ℃, and the medium is water;
in S3, the weight ratio of the material B, urea, acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker is 82: 4: 7: 3: 0.9: 5: 3: 3: 2.5: 1; the weight ratio of dimethyl methylphosphonate to silicone oil to diethyl ethylphosphate is 4: 11: 4.3, wherein the total weight of the dimethyl methylphosphonate, the silicone oil and the diethyl ethylphosphate is 8 wt% of the weight of the composite wood shavings; the material B is a modified material B; the modified material B is prepared according to the following process: uniformly mixing hexafluoroglutaric acid and triethylene tetramine, heating to 100 ℃, keeping the temperature and stirring for 25min, heating to 140 ℃, keeping the temperature and stirring for 45min, heating to 165 ℃, keeping the temperature and stirring for 80min, cooling to 80 ℃, adding boiling water to adjust the solid content to be 45 wt%, adding epoxy chloropropane, adjusting the temperature to be 40 ℃, keeping the temperature, adding ethanolamine after the viscosity reaches 180mPa.s, adjusting the pH to be 3, cooling to room temperature to obtain a modifier, mixing the modifier with a material B, and stirring at room temperature for 30min to obtain a modified material B;
Drying the composite wood shavings at 48 ℃ until the water content is 8 wt% to obtain pretreated wood shavings in S4; the composite wood shavings are paulownia wood shavings, poplar wood shavings and reed straw wood shavings according to the weight ratio of 7: 1.3: 1;
in S5, the weight of the adhesive is 11 wt% of the weight of the pre-treated wood shavings;
in S6, the unit pressure of the primary hot press molding is 2.6MPa, and the unit pressure of the secondary hot press molding is 2.1 MPa.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The preparation method of the water-resistant flame-retardant shaving board is characterized by comprising the following steps of:
s1, dispersing a flame retardant in water, adding soy protein powder, stirring uniformly, adding alkali, stirring for 10-20min, heating to 55-65 ℃ by microwave, treating for 8-20min, and adjusting the pH value to be neutral to obtain a material A; wherein the flame retardant is a mixture of zinc borate, melamine cyanurate, aluminum hydroxide and ditolyl phosphate;
S2, placing the material A in an ultrahigh pressure device after vacuum packaging, carrying out ultrahigh pressure treatment for 1-3min under the pressure of 200-;
s3, mixing the material B with urea, uniformly stirring, adding acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker, and uniformly stirring to obtain an adhesive;
s4, uniformly spraying a mixture of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate into the composite wood shavings, and drying to obtain pretreated wood shavings; wherein the composite wood shavings are a mixture of paulownia wood shavings, poplar wood shavings and reed straw shavings;
s5, uniformly mixing the adhesive and the pretreated wood shavings, and paving to obtain a plate blank;
s6, carrying out hot press molding on the plate blank to obtain the waterproof flame-retardant shaving board, wherein the specific process of the hot press molding comprises one-time hot press molding and two-time hot press molding, wherein the temperature of the one-time hot press molding is 180-200 ℃, and the time is 20-38S/mm: the temperature of the secondary hot-press molding is 150 ℃ and 170 ℃, and the time is 55-70 s/mm.
2. The method for preparing the water-resistant flame-retardant shaving board according to claim 1, wherein in S1, the weight ratio of the flame retardant, the soybean protein powder, the alkali and the water is 5-9: 100: 5-9: 300-500.
3. The method for preparing a water-resistant flame-retardant particle board according to claim 1, wherein in S1, the weight ratio of the zinc borate to the melamine cyanurate to the aluminum hydroxide to the ditolyl phosphate is 2-5: 3-9: 3-11: 1-4.
4. The method for preparing a water-resistant flame-retardant particle board according to claim 1, wherein the ultra-high pressure treatment temperature is 20 to 30 ℃ and the medium is water in S2.
5. The method for preparing a water-resistant flame-retardant shaving board according to claim 1, wherein in S3, the weight ratio of the material B, urea, acrylic emulsion, carboxylic styrene-butadiene latex, glycerol triglycidyl ether, basalt fiber, perlite powder, light calcium carbonate powder, montmorillonite and acetylated nano cellulose whisker is 70-85: 3-7: 5-8: 1-5: 0.5-2: 2-6: 1-4: 1-3: 2-5: 0.5-1.4.
6. The method for preparing a water-resistant flame-retardant particle board according to claim 1, wherein in S4, the weight ratio of dimethyl methylphosphonate, silicone oil and diethyl ethylphosphate is 3-9: 9-20: 1-5, wherein the total weight of the dimethyl methylphosphonate, the silicone oil and the diethyl ethylphosphate is 5-10 wt% of the weight of the composite wood shavings.
7. The method for preparing a water-resistant flame-retardant particle board according to claim 1, wherein the pre-treated particles are obtained by drying at 40-50 ℃ to a water content of 7-9 wt% in S4; the composite wood shavings are paulownia wood shavings, poplar wood shavings and reed straw wood shavings according to the weight ratio of 5-12: 1-2: 0.5-2 of the mixture.
8. The method for preparing a water-resistant flame-retardant particle board according to claim 1, wherein in S5, the weight of the adhesive is 9-15 wt% of the weight of the pre-treated particles.
9. The method for preparing a water-resistant flame-retardant shaving board according to claim 1, wherein in S6, the unit pressure ranges of the primary hot-press molding and the secondary hot-press molding are both 1.5-3MPa, and the pressure of the primary hot-press molding is not less than that of the secondary hot-press molding.
10. The method for manufacturing a water-resistant flame-retardant particle board as recited in any one of claims 1-9, wherein in S3, the material B is a modified material B; the modified material B is prepared according to the following process: uniformly mixing hexafluoroglutaric acid and triethylene tetramine, heating to 110-.
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