CN111421632A - Functional bamboo or wood veneer processing method - Google Patents
Functional bamboo or wood veneer processing method Download PDFInfo
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- CN111421632A CN111421632A CN202010122971.9A CN202010122971A CN111421632A CN 111421632 A CN111421632 A CN 111421632A CN 202010122971 A CN202010122971 A CN 202010122971A CN 111421632 A CN111421632 A CN 111421632A
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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
- B27K3/04—Impregnating in open tanks
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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
- B27K3/0207—Pretreatment of wood before impregnation
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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
- B27K3/0207—Pretreatment of wood before impregnation
- B27K3/0214—Drying
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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
- B27K5/04—Combined bleaching or impregnating and drying of wood
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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
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a processing method of a functional bamboo or wood veneer, which comprises the following steps: step a, respectively preparing a zirconium phosphate suspension, a polyethyleneimine solution and an ammonium polyphosphate solution; b, ultrasonic cleaning the bamboo or wood veneer by using ethanol and deionized water respectively, and then drying the bamboo or wood veneer in an electric heating vacuum drying oven; step c, taking out the dried bamboo or wood veneer, and immersing the bamboo or wood veneer into a polyethyleneimine solution; d, immersing the bamboo or wood veneer into the zirconium phosphate suspension; step e, immersing the bamboo or wood veneer into a polyethyleneimine solution; and f, immersing the bamboo or wood veneer into an ammonium polyphosphate solution. The processing method of the functional bamboo or wood veneer provided by the invention can improve the flame retardant property and the light-resistant and color-changing property of the bamboo or wood veneer under the condition of ensuring that the gluing property and the original appearance of the bamboo or wood veneer are not obviously changed.
Description
Technical Field
The invention relates to a processing method of functional bamboo or wood veneers, belonging to the technical field of production of artificial boards made of bamboo and wood.
Background
Endowing bamboo and wood materials with related functionality, not only improving the quality of related artificial boards, widening the application range of the boards and achieving the purpose of replacing other non-renewable materials such as plastics, but also creating a safer and more comfortable living environment for people and improving the durability and the added value of the boards. In the prior art, although the functional processing method of the wood material can increase the functionality of the wood material, the method steps are complicated and influence the original color and performance of the bamboo-wood veneer material.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a functional bamboo or wood veneer processing method capable of improving the flame retardant property and the light and color change resistance of a bamboo or wood veneer under the condition of ensuring that the gluing property and the original appearance of the bamboo or wood veneer are not obviously changed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a processing method of functional bamboo or wood veneers comprises the following steps: step a, respectively preparing a zirconium phosphate suspension, a polyethyleneimine solution and an ammonium polyphosphate solution;
b, ultrasonic cleaning the bamboo or wood veneer by using ethanol and deionized water respectively, and then drying the bamboo or wood veneer in an electric heating vacuum drying oven;
step c, taking out the dried bamboo or wood veneer, immersing the bamboo or wood veneer into a polyethyleneimine solution, taking out the bamboo or wood veneer, washing the bamboo or wood veneer with deionized water, and then placing the bamboo or wood veneer in an electric heating vacuum drying oven for drying;
d, immersing the bamboo or wood veneer into the zirconium phosphate suspension, taking out, washing the bamboo or wood veneer with deionized water, and drying the bamboo or wood veneer in an electric heating vacuum drying oven;
e, taking out the dried bamboo or wood veneer, immersing the bamboo or wood veneer into a polyethyleneimine solution, taking out the bamboo or wood veneer, washing the bamboo or wood veneer with deionized water, and then placing the bamboo or wood veneer in an electric heating vacuum drying oven for drying;
and f, immersing the bamboo or wood veneer into an ammonium polyphosphate solution, taking out the bamboo or wood veneer, washing the bamboo or wood veneer with deionized water, and drying the bamboo or wood veneer in an electric heating vacuum drying oven.
In the step a, the concentration of the zirconium phosphate suspension is 0.2-0.3% by mass, and the concentration of the polyethyleneimine solution and the ammonium polyphosphate solution is 0.9-1.1% by mass.
And b, carrying out veneer modification treatment before cleaning the bamboo or wood veneers, wherein the veneer modification comprises high-temperature saturated steam treatment or delignification treatment.
In the step b, the ultrasonic cleaning time is 5-10 min, the temperature of the electric heating vacuum drying oven is 50-60 ℃, and the bamboo or wood veneer is dried until the water content is 3-5%.
In the step c, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
In the step d, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
And c, repeating the step c and the step d for 2-5 times.
In the step e, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
In the step f, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
And e, repeating the step e and the step f for 2-5 times.
The invention has the beneficial effects that: the invention provides a processing method of functional bamboo or wood veneers, which has the advantages of easy operation of process, no influence on the gluing performance of the wood or the bamboo veneers by processing treatment, and capability of greatly improving the flame retardant property of the bamboo or wood veneers and the ultraviolet light aging resistance of the bamboo or wood veneers.
Detailed Description
The present invention is further described with reference to the following examples, which are only used to more clearly illustrate the technical solutions of the present invention, but not to limit the scope of the present invention.
Detailed description of the preferred embodiment 1
Firstly, taking a poplar veneer with the water content of 12 percent and the thickness of 1.5mm, respectively using ethanol and deionized water to ultrasonically clean the poplar veneer for 10min, and then placing the poplar veneer in an electric heating vacuum drying oven for drying at 60 ℃ until the water content is 5 percent.
Preparing 0.9% polyethyleneimine (PEI, polymerization degree 70000) aqueous solution, adjusting the pH value to 9 with 0.5 mol/L sodium hydroxide solution, preparing 0.9% ammonium polyphosphate (APP, polymerization degree > 1000) aqueous solution, also adjusting the pH value to 9, preparing 0.2% zirconium phosphate (chemical formula α -Zr (HPO)4)2·H2O，ZrO2The content is more than 40%, the fluoride is less than 0.002%, the water insoluble is more than 99.9%, the ignition loss water content is less than 6%, the pH value is 4, and the density is 1.66g/cm3Average particle size of 0.8 μm) was added, and stirred with a magnetic stirrer for 24 hours to be uniformly dispersed, to obtain a zirconium phosphate suspension having a mass fraction of 0.2%.
And (3) immersing the prepared poplar veneer into a polyethyleneimine solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The prepared poplar veneer was then immediately immersed in the zirconium phosphate solution for a duration of 10 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 5 times.
The prepared poplar veneer was then immersed in a polyethyleneimine solution for a period of 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. And then immersed into the ammonium polyphosphate solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 5 times. Thereby obtaining the poplar flame-retardant veneer with the zirconium phosphate expansion layer outside and the zirconium phosphate heat-resistant layer inside.
The poplar index of the functional poplar veneer obtained after treatment reaches 46.2, the residual carbon is 41 percent and is 2.5 times of that of untreated wood, and the residual carbon of the treated veneer is in a complete form, while the untreated veneer is powder. The same urea-formaldehyde glue is used, the bonding strength of the treated veneer is tested according to the shearing strength of the plywood, and the treated veneer has no significant difference from the untreated veneer and can reach 1.22 MPa. Placing the treated single board and the untreated single board under an ultraviolet lamp UVB-313 test condition, wherein the untreated single board has an obvious aging phenomenon after 12 days, and the treated single board has no obvious change after 21 days.
Specific example 2
Firstly, taking a poplar veneer with the water content of 12 percent and the thickness of 2mm, respectively using ethanol and deionized water to ultrasonically clean the poplar veneer for 5min, and then placing the poplar veneer in an electric heating vacuum drying oven for drying at 55 ℃ until the water content is 3 percent. The prepared solution was the same as in example 1 except that the mass concentration of the zirconium phosphate suspension was 0.25%, and the mass concentrations of the polyethyleneimine solution and the ammonium polyphosphate solution were 1.0%.
And (3) immersing the prepared poplar veneer into a polyethyleneimine solution for 30 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The prepared poplar veneer was then immediately immersed in a zirconium phosphate solution for a duration of 25 min. Taking out, washing the wood with deionized water, and drying the wood in an electrothermal vacuum drying oven at 55 ℃ for 12 min. The above process was repeated 2 times.
The prepared poplar veneer was then immersed in a polyethyleneimine solution for a duration of 25 min. Taking out, washing the wood with deionized water, and drying the wood in an electrothermal vacuum drying oven at 55 ℃ for 12 min. And then immersed in an ammonium polyphosphate solution for 25 min. Taking out, washing the wood with deionized water, and drying the wood in an electrothermal vacuum drying oven at 55 ℃ for 12 min. The above process was repeated 2 times. Thereby obtaining the poplar flame-retardant veneer with the zirconium phosphate expansion layer outside and the zirconium phosphate heat-resistant layer inside.
The poplar index of the functional poplar veneer obtained after treatment reaches 41.2, the residual carbon is 38 percent and is 2.5 times of that of untreated wood, and the residual carbon of the treated veneer is in a complete form, while the untreated veneer is powder. The same urea-formaldehyde glue is used, the bonding strength of the treated veneer is tested according to the shearing strength of the plywood, and the treated veneer has no significant difference from the untreated veneer and can reach 1.13 MPa. Placing the treated single board and the untreated single board under the ultraviolet lamp UVB-313 test condition, wherein the untreated single board has obvious aging phenomenon after 10 days, and the treated single board has no obvious change after 19 days.
Specific example 3
Firstly, a moso bamboo veneer with the water content of 10% is sliced into a veneer with the thickness of 0.6mm, the poplar veneer is ultrasonically cleaned for 8min by using ethanol and deionized water respectively, and then the poplar veneer is placed in an electric heating vacuum drying oven to be dried at 50 ℃ until the water content is 4%. The prepared solution was the same as in example 1 except that the mass concentration of the zirconium phosphate suspension was 0.3%, and the mass concentrations of the polyethyleneimine solution and the ammonium polyphosphate solution were 1.1%.
And (3) immersing the prepared moso bamboo sliced veneer into a polyethyleneimine solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The prepared poplar veneer was then immediately immersed in the zirconium phosphate solution for a period of 30 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 50 ℃ for 10 min. The above process was repeated 3 times.
The prepared poplar veneer was then immersed in a polyethyleneimine solution for 30 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 50 ℃ for 10 min. And then immersed in an ammonium polyphosphate solution for 30 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 50 ℃ for 10 min. The above process was repeated 3 times. Thus obtaining the flame-retardant veneer sliced by the moso bamboo with the zirconium phosphate expansion layer outside and the zirconium phosphate heat-resistant layer inside.
The poplar index of the functional poplar veneer obtained after treatment reaches 47.2, the residual carbon is 43 percent and is 2.4 times of that of untreated wood, and the residual carbon of the treated veneer is in a complete form, while the untreated veneer is powder. The same phenol glue is used, the bonding strength of the treated veneer is tested according to the shearing strength of the plywood, and the treated veneer has no significant difference from the untreated veneer and can reach 1.33 MPa. Placing the treated single board and the untreated single board under an ultraviolet lamp UVB-313 test condition, wherein the untreated single board has an obvious aging phenomenon after 10 days, and the treated single board has no obvious change after 24 days.
Specific example 4
Firstly, taking a poplar veneer with the water content of 12 percent and the thickness of 3.3mm, treating the poplar veneer with saturated steam at 150 ℃ for 8min, taking out the poplar veneer, respectively ultrasonically cleaning the poplar veneer with ethanol and deionized water for 10min, and then placing the poplar veneer in an electric heating vacuum drying oven at 60 ℃ for drying until the water content is 5 percent. The solution was prepared as in example 1.
And (3) immersing the prepared steam-treated poplar veneer into a polyethyleneimine solution for 30 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The prepared poplar veneer was then immediately immersed in the zirconium phosphate solution for a period of 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 4 times.
Then, the poplar veneer ready for steam treatment is immersed into the polyethyleneimine solution for 30 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. And then immersed into the ammonium polyphosphate solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 4 times. Thus obtaining the steam-treated poplar flame-retardant veneer with the zirconium phosphate expansion layer outside and the zirconium phosphate heat-resistant layer inside.
The poplar index of the delignified poplar veneer obtained after treatment reaches 44.6, the residual carbon is 48 percent and is 2.9 times of that of untreated wood, and the residual carbon of the treated veneer is in a complete form, while the untreated veneer is powder. The same urea-formaldehyde glue is used, the bonding strength of the treated veneer is tested according to the shearing strength of the plywood, and the treated veneer has no significant difference with the untreated veneer and can reach 1.06 MPa. Placing the treated single board and the untreated single board under an ultraviolet lamp UVB-313 test condition, wherein the untreated single board has an obvious aging phenomenon after 7 days, and the treated single board has no obvious change after 19 days.
Specific example 5
Firstly, taking a poplar veneer with the water content of 12 percent, treating the poplar veneer with the thickness of 3.3mm in 2.5 mol/L sodium sulfate and 0.4 mol/L aqueous solution for 4 hours at the treatment temperature of 90 ℃, taking out the poplar veneer, respectively ultrasonically cleaning the poplar veneer with ethanol and deionized water for 10 minutes, and then placing the poplar veneer in an electrothermal vacuum drying oven at the temperature of 60 ℃ for drying until the water content is 5 percent, wherein the prepared solution is the same as that in the embodiment 1.
And (3) immersing the prepared steam-treated poplar veneer into a polyethyleneimine solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The prepared poplar veneer was then immediately immersed in the zirconium phosphate solution for a duration of 10 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 3 times.
Then, the poplar veneer ready for steam treatment is immersed into the polyethyleneimine solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. Then the substrate is immersed into ammonium polyphosphate solution for 10 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 3 times. Thus obtaining the steam-treated poplar flame-retardant veneer with the zirconium phosphate expansion layer outside and the zirconium phosphate heat-resistant layer inside.
The poplar index of the functional poplar veneer obtained after treatment reaches 49.6, the residual carbon is 49 percent and is 3.0 times of that of untreated wood, and the residual carbon of the treated veneer is in a complete form, while the untreated veneer is powder. The same urea-formaldehyde glue is used, the bonding strength of the treated veneer is tested according to the shearing strength of the plywood, and the treated veneer has no significant difference from the untreated veneer and can reach 1.11 MPa. Placing the treated single board and the untreated single board under an ultraviolet lamp UVB-313 test condition, wherein the untreated single board has an obvious aging phenomenon after 12 days, and the treated single board has no obvious change after 21 days.
Specific example 6
Firstly, a moso bamboo sliced veneer with the water content of 10% is taken, the thickness is 2.0mm, the moso bamboo sliced veneer is treated for 6 hours by using 2.5 mol/L sodium sulfate and 0.4 mol/L aqueous solution, the treatment temperature is 80 ℃, the moso bamboo sliced veneer is taken out and ultrasonically cleaned for 10 minutes by using ethanol and deionized water respectively, then the poplar veneer is placed in an electric heating vacuum drying oven at the temperature of 60 ℃ and dried until the water content is 4%, and the prepared solution is the same as that in the embodiment 1.
And (3) immersing the prepared delignified moso bamboo sliced veneer into a polyethyleneimine solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The prepared poplar veneer was then immediately immersed in the zirconium phosphate solution for a period of 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 5 times.
The prepared poplar veneer was then immersed in a polyethyleneimine solution for a period of 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. And then immersed into the ammonium polyphosphate solution for 20 min. Taking out, washing the wood with deionized water, and drying the wood in an electric heating vacuum drying oven at 60 ℃ for 15 min. The above process was repeated 5 times. Thus obtaining the flame-retardant veneer sliced by the moso bamboo with the zirconium phosphate expansion layer outside and the zirconium phosphate heat-resistant layer inside.
The poplar index of the functional poplar veneer obtained after treatment reaches 46.2, the residual carbon is 41 percent and is 2.2 times of that of untreated wood, and the residual carbon of the treated veneer is in a complete form, while the untreated veneer is powder. The same phenol glue is used, the bonding strength of the treated veneer is tested according to the shearing strength of the plywood, and the treated veneer has no significant difference from the untreated veneer and can reach 1.43 MPa. Placing the treated single board and the untreated single board under an ultraviolet lamp UVB-313 test condition, wherein the untreated single board has obvious aging phenomenon after 11 days, and the treated single board has no obvious change after 23 days.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. A processing method of functional bamboo or wood veneers is characterized in that: the method comprises the following steps:
step a, respectively preparing a zirconium phosphate suspension, a polyethyleneimine solution and an ammonium polyphosphate solution;
b, ultrasonic cleaning the bamboo or wood veneer by using ethanol and deionized water respectively, and then drying the bamboo or wood veneer in an electric heating vacuum drying oven;
step c, taking out the dried bamboo or wood veneer, immersing the bamboo or wood veneer into a polyethyleneimine solution, taking out the bamboo or wood veneer, washing the bamboo or wood veneer with deionized water, and then placing the bamboo or wood veneer in an electric heating vacuum drying oven for drying;
d, immersing the bamboo or wood veneer into the zirconium phosphate suspension, taking out, washing the bamboo or wood veneer with deionized water, and drying the bamboo or wood veneer in an electric heating vacuum drying oven;
e, taking out the dried bamboo or wood veneer, immersing the bamboo or wood veneer into a polyethyleneimine solution, taking out the bamboo or wood veneer, washing the bamboo or wood veneer with deionized water, and then placing the bamboo or wood veneer in an electric heating vacuum drying oven for drying;
and f, immersing the bamboo or wood veneer into an ammonium polyphosphate solution, taking out the bamboo or wood veneer, washing the bamboo or wood veneer with deionized water, and drying the bamboo or wood veneer in an electric heating vacuum drying oven.
2. The processing method of functional bamboo or wood veneer according to claim 1, wherein: in the step a, the concentration of the zirconium phosphate suspension is 0.2-0.3% by mass, and the concentration of the polyethyleneimine solution and the ammonium polyphosphate solution is 0.9-1.1% by mass.
3. The processing method of functional bamboo or wood veneer according to claim 1, wherein: and b, carrying out veneer modification treatment before cleaning the bamboo or wood veneers, wherein the veneer modification comprises high-temperature saturated steam treatment or delignification treatment.
4. The processing method of functional bamboo or wood veneer according to claim 1, wherein: in the step b, the ultrasonic cleaning time is 5-10 min, the temperature of the electric heating vacuum drying oven is 50-60 ℃, and the bamboo or wood veneer is dried until the water content is 3-5%.
5. The processing method of functional bamboo or wood veneer according to claim 1, wherein: in the step c, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
6. The processing method of functional bamboo or wood veneer according to claim 1, wherein: in the step d, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
7. The processing method of functional bamboo or wood veneer according to claim 1, wherein: and c, repeating the step c and the step d for 2-5 times.
8. The processing method of functional bamboo or wood veneer according to claim 1, wherein: in the step e, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
9. The processing method of functional bamboo or wood veneer according to claim 1, wherein: in the step f, the bamboo or wood veneer is soaked for 20-30 min, the drying temperature of the electric heating vacuum drying oven is 50-60 ℃, and the drying time is 10-15 min.
10. The processing method of functional bamboo or wood veneer according to claim 1, wherein: and e, repeating the step e and the step f for 2-5 times.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111805678A (en) * | 2020-07-23 | 2020-10-23 | 南京林业大学 | Preparation method of flame-retardant shaving board |
| CN113547594A (en) * | 2021-08-31 | 2021-10-26 | 江苏美标家居科技有限公司 | Formaldehyde-free flame-retardant furniture multi-layer board and flame-retardant adhesive for formaldehyde-free flame-retardant furniture multi-layer board |
| CN114083632A (en) * | 2021-10-28 | 2022-02-25 | 顾家家居股份有限公司 | Polyethyleneimine reinforced solid wood composite material and preparation method thereof |
| CN115101356A (en) * | 2022-05-12 | 2022-09-23 | 华南理工大学 | Wood-based high-density solid electrode and preparation method thereof |
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| CN113547594A (en) * | 2021-08-31 | 2021-10-26 | 江苏美标家居科技有限公司 | Formaldehyde-free flame-retardant furniture multi-layer board and flame-retardant adhesive for formaldehyde-free flame-retardant furniture multi-layer board |
| CN114083632A (en) * | 2021-10-28 | 2022-02-25 | 顾家家居股份有限公司 | Polyethyleneimine reinforced solid wood composite material and preparation method thereof |
| CN114083632B (en) * | 2021-10-28 | 2023-01-17 | 顾家家居股份有限公司 | Polyethyleneimine reinforced solid wood composite material and preparation method thereof |
| CN115101356A (en) * | 2022-05-12 | 2022-09-23 | 华南理工大学 | Wood-based high-density solid electrode and preparation method thereof |
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