CN107972143A - A kind of preparation method of tension bamboo plywood - Google Patents
A kind of preparation method of tension bamboo plywood Download PDFInfo
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- CN107972143A CN107972143A CN201710978114.7A CN201710978114A CN107972143A CN 107972143 A CN107972143 A CN 107972143A CN 201710978114 A CN201710978114 A CN 201710978114A CN 107972143 A CN107972143 A CN 107972143A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J7/00—Mechanical working of tree or plant materials not otherwise provided for
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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
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
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- Life Sciences & Earth Sciences (AREA)
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- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of preparation method of tension bamboo plywood, belong to building board technical field.The present invention, which blocks mao bamboon, is made sheet, then goes blue or green de-etiolation, and smooth bamboo chip is made；By bamboo chip, pectase, water mixing, heating stirring mixing, soaks, filters, dry, obtains dry bamboo chip；Ethyl orthosilicate and isocyanates are stirred, obtain mixed liquor；Dry bamboo chip is mixed with mixed liquor, ultrasonic immersing, obtains pretreatment bamboo chip；Pretreatment bamboo chip is applied and builds up slab on rear side of adhesive, is hot pressed into bamboo band；Bamboo band is applied into adhesive, then slab is made into adjacent bamboo band, reheating is pressed into plate；Plate is applied into adhesive, then is folded and matched somebody with somebody with the bamboo chip of adjacent panels, reheating is pressed into plate；Using above-mentioned gained plate as dash board and core plate, successively by dash board adhesive block board adhesive dash board, by hot pressing, cool down, up to tension bamboo plywood.Tension bamboo plywood provided by the invention has excellent mechanical property.
Description
Technical field
The invention discloses a kind of preparation method of tension bamboo plywood, belong to building board technical field.
Background technology
Bamboo wood resources distribution is extensive, resource very abundant.Bamboo timber resource is developed and utilized, by bamboo wood extensive use
It is to realize building environmental protection in building structure field, maintains the important measure of social sustainable development, there is very high practical value
With good environmental benefit.And cemented bamboo can effectively make up the deficiency of natural bamboo, and its physical mechanics can be given full play to
The ecosystem characterization of performance and low-carbon environment-friendly, has the researching value of higher.
One timber resources is with respect to shortage and country that bamboo resource is very abundant, and wood substituted by bamboo, greatly develops building bamboo
Material industry seems extremely important.Glued bamboo material is that one kind has specific fiber alignment mode, and by special process processing
The composite material of bamboo fibre and phenol glue.Similar laminated structure is built, and cemented bamboo building is fast with speed of application, construction material
Environmental protection, raw material sources are extensive, it is cheap the advantages that, it is most likely that as the important component of modern architecture.Glued bamboo material
It can be needed to design fiber alignment mode and proportioning mode according to structure, it is multiple to be processed into natural bamboo fibres enhancing by special process
Condensation material.The raw material of glued bamboo material are mao bamboon, are split into bamboo cane, then by cuing open the thin bamboo strip, compiling bamboo curtain splint（Or seat）, it is dry, apply
Glue, assembly, hot pressing and etc. thin bamboo strips used for weaving laminated timber is made.The cemented bamboo sheet metal thickness of structure is generally 30mm, and plate width is generally
1220mm × 2440mm, when manufacturing large-sized structural elements, carries out spelling long, spelling thickness by Cold-press adhesion.Glue bamboo board point
For primary fibre direction and time machine direction.Primary fibre direction is that fiber is distributed more direction, is typically also plate length direction（Plate is indulged
To）；Then contrast, both direction are mutually perpendicular to secondary machine direction.The mechanical property of bamboo wood is more complicated, has different parts material
Expect the characteristics of mechanical property is inconsistent, water-cut variation can cause change in mechanics.Because it have passed through glued and high temperature to press
Etc. process, glued bamboo material moisture content is stablized compared with composite materials such as timber.It is glued under general indoor environment by test
The average moisture content of bamboo wood is maintained in the range of 6.00~7.00%.At present glued bamboo material also there are mechanical property it is bad the problem of,
Therefore also need further to study.
The content of the invention
The present invention solves the technical problem of：For traditional bamboo plywood mechanical property it is bad the problem of, there is provided
A kind of preparation method of tension bamboo plywood.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）Mao bamboon is blocked sheet is made, then go blue or green de-etiolation, smooth bamboo chip is made；
（2）Count in parts by weight, 20~30 parts of bamboo chips, 2~3 parts of pectases, 80~100 parts of water mixing, heating stirring mixed,
Immersion, obtains pretreatment bamboo chip；
（3）By the pretreatment bamboo chip drying of above-mentioned gained, dry bamboo chip is obtained；
（4）By ethyl orthosilicate and isocyanates in mass ratio 1：2~1：3 are stirred, and obtain mixed liquor；
（5）Will dry bamboo chip and mixed liquor in mass ratio 1：10~1：20 mixing, ultrasonic immersing, obtains pretreatment bamboo chip；
（6）Slab is built up after above-mentioned gained pretreatment bamboo chip is applied adhesive, and is hot pressed into bamboo band；
（7）Slab is made into after above-mentioned gained bamboo band is applied adhesive, reheating is pressed into veneer；
（8）Match somebody with somebody being folded after above-mentioned gained veneer painting adhesive, reheating is pressed into plate；
（9）Using above-mentioned gained plate as dash board and core plate, successively with dash board-adhesive-block board-adhesive-dash board order
Apply adhesive, assembly, hot pressing, cooling, up to tension bamboo plywood.
The adhesive is any one in phenolic resin 2123, phenolic resin 2127 or phenolic resin 2130.
Step（1）The thickness of the bamboo chip is 1~3mm.
Step（3）The dry bamboo chip moisture content is 8~10%.
Step（4）The isocyanates is toluene di-isocyanate(TDI), dicyclohexyl methyl hydride diisocyanate or lysine two
Any one in isocyanates.
Step（5）The supersonic frequency is 50~60kHz.
Step（6）The painting adhesive thickness is 2~3mm；The hot pressing temperature is 70~100 DEG C, pressure for 4~
5MPa。
Step（7）The painting adhesive thickness is 2~3mm；The hot pressing temperature is 70~100 DEG C, pressure for 5~
6MPa。
Step（8）The painting adhesive thickness is 3~4mm；The hot pressing temperature is 70~100 DEG C, pressure for 6~
7MPa。
Step（9）The painting adhesive thickness is 3~4mm；The hot pressing temperature is 70~100 DEG C, and pressure is 5~6
MPa。
The beneficial effects of the invention are as follows：
（1）Technical solution of the present invention is by the way that bamboo chip is soaked in pectase, the pectin in bamboo chip cell membrane of degrading, on the one hand,
So that intercellular gap increase, on the other hand so that bamboo chip cell surface active group increases, and enhancing bamboo chip obtains adsorptivity
Can, and the moisture in cell is easier to infiltrate, then by strictly controlling the moisture content in drying process, make in space between cells
Moisture preferential volatilization, only residual cell interior section moisture so that in dipping process, ethyl orthosilicate and water generate two
Silica is easier to be deposited on the inside of bamboo chip cell, strengthens bamboo chip intensity, so as to strengthen the mechanical property of system；
（2）Technical solution of the present invention was being prepared by the way that bamboo chip is soaked in the mixed liquor of isocyanates and ethyl orthosilicate
Cheng Zhong, on the one hand, isocyanates can promote the curing of phenolic resin adhesive as curing agent, on the other hand, may penetrate into thin
In intercellular space, when the moisture in cell slowly oozes out, isocyanates meets water and reacts, and generates methylamine and carbon dioxide, meanwhile,
Release amount of heat, on the one hand, the methylamine of generation can further promote adhesive to be crosslinked in space between cells and cell interior, from
And strengthen the mechanical property of system, on the other hand, after the carbon dioxide of generation increases cell interior pressure, cause cell to break
Split, so that intracellular moisture fully discharges, and obtaining ethyl orthosilicate with penetrating into bamboo chip fully reacts, and generates titanium dioxide
Silicon, is deposited in bamboo chip, strengthens bamboo chip intensity, so that the mechanical property of system is further enhanced, meanwhile, adhesive also penetrates into
Cell interior, crosslinks from cell interior, and the three-dimensional network of formation runs through whole system, further enhances the mechanical property of system
Energy.
Embodiment
Mao bamboon is blocked sheet is made, then go blue or green de-etiolation, smooth bamboo chip is made；Count in parts by weight, by 20~30 parts
Bamboo chip, 2~3 parts of pectases, the mixing of 80~100 parts of water, in temperature be 40~50 DEG C, under the conditions of rotating speed is 100~200r/min,
After heating stirring mixes 20~30min, take out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is placed in baking oven, it is dry to containing
Water rate is 8~10%, obtains dry bamboo chip；By ethyl orthosilicate and isocyanates in mass ratio 1：2~1：3 add in single-necked flask,
Under the conditions of rotating speed is 200~300r/min, 40~50min is stirred, obtains mixed liquor；Dry bamboo chip is pressed into matter with mixed liquor
Measure ratio 1：10~1：After 20 mixing, it is placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 50~60kHz, ultrasonic immersing 40
After~50min, take out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is applied into adhesive, it is 2~3mm to apply adhesive thickness, then
Side builds up slab, and then slab is placed in hot press, in temperature be 70~100 DEG C, pressure be 4~5MPa under the conditions of, hot pressing
30~40min, obtains bamboo band；By gained bamboo band apply adhesive, apply adhesive thickness be 2~3mm, then will painting adhesive after
Bamboo band is made into bamboo band slab, and then bamboo band slab is placed in hot press, in hot pressing temperature be 70~100 DEG C, pressure
Under the conditions of 5~6MPa, bamboo band slab is hot pressed into veneer；Gained veneer is applied into adhesive, apply adhesive thickness for 3~
4mm, then fold the veneer after adhesive is applied and match somebody with somebody, must fold and match somebody with somebody blanket, will then fold and be placed in blanket in hot press, in temperature be 70
~100 DEG C, under the conditions of pressure is 6~7MPa, it is hot pressed into plate；Using gained plate as dash board and core plate, successively by dash board-glue
Glutinous agent-block board-adhesive-dash board order, applies adhesive, and it is 3~4mm to apply adhesive thickness, and assembly, obtains combination blanket, and
Will combination blanket be placed in hot press, in temperature be 70~100 DEG C, pressure be 5~6 MPa under the conditions of, 30~40min of hot pressing,
1~2h is cooled down, up to tension bamboo plywood.The adhesive is phenolic resin 2123, phenolic resin 2127 or phenolic resin
Any one in 2130.The thickness of the bamboo chip is 1~3mm.The isocyanates is toluene di-isocyanate(TDI), dicyclohexyl
Any one in methane diisocyanate or lysine diisocyanate.
Example 1
Mao bamboon is blocked sheet is made, then go blue or green de-etiolation, smooth bamboo chip is made；Count in parts by weight, by 30 parts of bamboo chips, 3 parts
Pectase, 100 parts of water mixing, are 50 DEG C in temperature, under the conditions of rotating speed is 200r/min, after heating stirring mixing 30min, take
Go out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is placed in baking oven, drying to moisture content is 10%, obtains dry bamboo chip；Will just
Silester and isocyanates in mass ratio 1：3 add in single-necked flask, under the conditions of rotating speed is 300r/min, are stirred
50min, obtains mixed liquor；Will dry bamboo chip and mixed liquor in mass ratio 1：After 20 mixing, it is placed in ultrasonic disperse instrument, in supersonic frequency
Under the conditions of rate is 60kHz, after ultrasonic immersing 50min, takes out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is applied into adhesive, is applied
Adhesive thickness is 3mm, then side builds up slab, and then slab is placed in hot press, in temperature be 100 DEG C, pressure 5MPa
Under the conditions of, hot pressing 40min, obtains bamboo band；Gained bamboo band is applied into adhesive, it is 3mm to apply adhesive thickness, then will apply adhesive
Bamboo band afterwards is made into bamboo band slab, and then bamboo band slab is placed in hot press, in hot pressing temperature be 100 DEG C, pressure
Under the conditions of 6MPa, bamboo band slab is hot pressed into veneer；Gained veneer is applied into adhesive, it is 4mm to apply adhesive thickness, then will
Apply the veneer after adhesive to fold and matches somebody with somebody, must fold and match somebody with somebody blanket, will then fold and be placed in blanket in hot press, in temperature be 100 DEG C, pressure
Under the conditions of 7MPa, plate is hot pressed into；Using gained plate as dash board and core plate, successively by dash board-adhesive-block board-glue
Glutinous agent-dash board order, applies adhesive, and it is 4mm to apply adhesive thickness, and assembly, obtains combination blanket, and combination blanket is placed in hot pressing
It it is 100 DEG C in temperature, under the conditions of pressure is 6 MPa, hot pressing 40min, cools down 2h, up to tension bamboo plywood in machine.The glue
Glutinous agent is phenolic resin 2123.The thickness of the bamboo chip is 3mm.The isocyanates is toluene di-isocyanate(TDI).
Example 2
Mao bamboon is blocked sheet is made, then go blue or green de-etiolation, smooth bamboo chip is made；Count in parts by weight, by 30 parts of bamboo chips, 100
Part water mixing, is 50 DEG C in temperature, under the conditions of rotating speed is 200r/min, after heating stirring mixing 30min, taking-up, must pre-process
Bamboo chip；Gained pretreatment bamboo chip is placed in baking oven, drying to moisture content is 10%, obtains dry bamboo chip；By ethyl orthosilicate with it is different
Cyanate in mass ratio 1：3 add in single-necked flask, under the conditions of rotating speed is 300r/min, is stirred 50min, must mix
Liquid；Will dry bamboo chip and mixed liquor in mass ratio 1：20 mixing after, be placed in ultrasonic disperse instrument, in supersonic frequency be 60kHz bars
Under part, after ultrasonic immersing 50min, take out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is applied into adhesive, applies adhesive thickness
Build up slab for 3mm, then side, then slab be placed in hot press, in temperature be 100 DEG C, pressure be 5MPa under the conditions of, hot pressing
40min, obtains bamboo band；By gained bamboo band apply adhesive, apply adhesive thickness be 3mm, then by painting adhesive after bamboo band
Bamboo band slab is made into, then bamboo band slab is placed in hot press, is 100 DEG C in hot pressing temperature, pressure is 6MPa conditions
Under, bamboo band slab is hot pressed into veneer；Gained veneer is applied into adhesive, it is 4mm to apply adhesive thickness, then by after painting adhesive
Veneer fold and match somebody with somebody, must fold and match somebody with somebody blanket, folded will be then placed in blanket in hot press, be 100 DEG C in temperature, pressure is 7MPa conditions
Under, it is hot pressed into plate；It is successively that dash board-adhesive-block board-adhesive-dash board is suitable using gained plate as dash board and core plate
Sequence, applies adhesive, and it is 4mm to apply adhesive thickness, and assembly, obtains combination blanket, and combination blanket is placed in hot press, in temperature
For 100 DEG C, under the conditions of pressure is 6 MPa, hot pressing 40min, cools down 2h, up to tension bamboo plywood.The adhesive is phenolic aldehyde
Resin 2123.The thickness of the bamboo chip is 3mm.The isocyanates is toluene di-isocyanate(TDI).
Example 3
Mao bamboon is blocked sheet is made, then go blue or green de-etiolation, smooth bamboo chip is made；Count in parts by weight, by 30 parts of bamboo chips, 3 parts
Pectase, 100 parts of water mixing, are 50 DEG C in temperature, under the conditions of rotating speed is 200r/min, after heating stirring mixing 30min, take
Go out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is placed in baking oven, drying to moisture content is 10%, obtains dry bamboo chip；Will be dry
Dry bamboo chip and isocyanates in mass ratio 1：After 20 mixing, it is placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 60kHz,
After ultrasonic immersing 50min, take out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is applied into adhesive, it is 3mm to apply adhesive thickness,
Side builds up slab again, and then slab is placed in hot press, in temperature be 100 DEG C, pressure be 5MPa under the conditions of, hot pressing 40min,
Obtain bamboo band；Gained bamboo band is applied into adhesive, it is 3mm to apply adhesive thickness, then the bamboo band after painting adhesive is made into bamboo
Bamboo band slab, is then placed in hot press by slip slab, in hot pressing temperature be 100 DEG C, pressure be 6MPa under the conditions of, by bamboo
Slip slab is hot pressed into veneer；By gained veneer apply adhesive, apply adhesive thickness be 4mm, then by painting adhesive after veneer
It is folded to match somebody with somebody, must fold and match somebody with somebody blanket, folded will be then placed in blanket in hot press, be 100 DEG C in temperature, pressure is hot under the conditions of 7MPa
It is pressed into plate；Using gained plate as dash board and core plate, successively by dash board-adhesive-block board-adhesive-dash board order, apply
Adhesive, it be 4mm to apply adhesive thickness, assembly, obtains combination blanket, and combination blanket is placed in hot press, in temperature be 100
DEG C, under the conditions of pressure is 6 MPa, hot pressing 40min, cools down 2h, up to tension bamboo plywood.The adhesive is phenolic resin
2123.The thickness of the bamboo chip is 3mm.The isocyanates is toluene di-isocyanate(TDI).
Example 4
Mao bamboon is blocked sheet is made, then go blue or green de-etiolation, smooth bamboo chip is made；Count in parts by weight, by 30 parts of bamboo chips, 3 parts
Pectase, 100 parts of water mixing, are 50 DEG C in temperature, under the conditions of rotating speed is 200r/min, after heating stirring mixing 30min, take
Go out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is placed in baking oven, drying to moisture content is 10%, obtains dry bamboo chip；Will be dry
Dry bamboo chip and ethyl orthosilicate in mass ratio 1：20 mixing after, be placed in ultrasonic disperse instrument, in supersonic frequency be 60kHz conditions
Under, after ultrasonic immersing 50min, take out, obtain pretreatment bamboo chip；Gained pretreatment bamboo chip is applied into adhesive, applying adhesive thickness is
3mm, then side build up slab, and then slab is placed in hot press, in temperature be 100 DEG C, pressure be 5MPa under the conditions of, hot pressing
40min, obtains bamboo band；By gained bamboo band apply adhesive, apply adhesive thickness be 3mm, then by painting adhesive after bamboo band
Bamboo band slab is made into, then bamboo band slab is placed in hot press, is 100 DEG C in hot pressing temperature, pressure is 6MPa conditions
Under, bamboo band slab is hot pressed into veneer；Gained veneer is applied into adhesive, it is 4mm to apply adhesive thickness, then by after painting adhesive
Veneer fold and match somebody with somebody, must fold and match somebody with somebody blanket, folded will be then placed in blanket in hot press, be 100 DEG C in temperature, pressure is 7MPa conditions
Under, it is hot pressed into plate；It is successively that dash board-adhesive-block board-adhesive-dash board is suitable using gained plate as dash board and core plate
Sequence, applies adhesive, and it is 4mm to apply adhesive thickness, and assembly, obtains combination blanket, and combination blanket is placed in hot press, in temperature
For 100 DEG C, under the conditions of pressure is 6 MPa, hot pressing 40min, cools down 2h, up to tension bamboo plywood.The adhesive is phenolic aldehyde
Resin 2123.The thickness of the bamboo chip is 3mm.
Comparative example：The bamboo plywood of Zhejiang Co., Ltd of bamboo and wood products production.
The gained of example 1 to 4 bamboo plywood and comparative example product are subjected to performance detection, specific detection method is as follows：
Tensile strength：Test specimen is prepared with reference to ASTMD143-94, testing equipment is 50kN wood-based plate universal testing machines, and using mark
Away from the extensometer measurement elasticity modulus for 50mm.Extensometer need to be installed on the medium position of tension test specimen cut surface, and ensure to draw
Stretching meter, the edge of a knife line of centres and test specimen length are axially in parallel up and down.Test speed should ensure that test specimen destroys in 2min, in this experiment
The test speed used is 2mm/min.
Compressive strength：Compression direction is primary fibre direction, according to GB1927~1943, and with reference in ASTMD143-94
Preparation method of sample prepares sample, and pressurized tests equipment uses the omnipotent pressure testing machine of 50kN wood-based plates.During experiment, first by test specimen
The central spot of fixture is positioned over, ensures test specimen axial compression as far as possible, loading velocity is 2mm/min used by experiment.
By curved intensity：It is 300mm × 30mm × 30mm by curved sample dimensions, length is primary fibre direction, and testing equipment is adopted
With universal timber testing machine, method of the test procedure according to GB/T1936.1 using timber static(al) by curved experiment, using single-point plus
Carry.
Specific testing result is as shown in table 1：
Table 1：
| Detection content | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example |
| Tensile strength/（N·mm-2） | 90 | 75 | 78 | 72 | 61 |
| Compressive strength/（N·mm-2） | 51 | 43 | 40 | 38 | 32 |
| By curved intensity/（N·mm-2） | 39 | 30 | 31 | 29 | 25 |
From 1 testing result of table, present invention gained tension bamboo plywood has good mechanical property.
Claims (10)
1. a kind of preparation method of tension bamboo plywood, it is characterised in that specifically preparation process is：
（1）Mao bamboon is blocked sheet is made, then go blue or green de-etiolation, smooth bamboo chip is made；
（2）Count in parts by weight, 20~30 parts of bamboo chips, 2~3 parts of pectases, 80~100 parts of water mixing, heating stirring mixed,
Immersion, obtains pretreatment bamboo chip；
（3）By the pretreatment bamboo chip drying of above-mentioned gained, dry bamboo chip is obtained；
（4）By ethyl orthosilicate and isocyanates in mass ratio 1：2~1：3 are stirred, and obtain mixed liquor；
（5）Will dry bamboo chip and mixed liquor in mass ratio 1：10~1：20 mixing, ultrasonic immersing, obtains pretreatment bamboo chip；
（6）Slab is built up after above-mentioned gained pretreatment bamboo chip is applied adhesive, and is hot pressed into bamboo band；
（7）Slab is made into after above-mentioned gained bamboo band is applied adhesive, reheating is pressed into veneer；
（8）Match somebody with somebody being folded after above-mentioned gained veneer painting adhesive, reheating is pressed into plate；
（9）Using above-mentioned gained plate as dash board and core plate, successively with dash board-adhesive-block board-adhesive-dash board order
Apply adhesive, assembly, hot pressing, cooling, up to tension bamboo plywood.
A kind of 2. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：The adhesive is phenolic aldehyde
Any one in resin 2123, phenolic resin 2127 or phenolic resin 2130.
A kind of 3. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（1）The bamboo chip
Thickness be 1~3mm.
A kind of 4. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（3）The drying
Bamboo chip moisture content is 8~10%.
A kind of 5. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（4）The isocyanide
Acid esters is toluene di-isocyanate(TDI), any one in dicyclohexyl methyl hydride diisocyanate or lysine diisocyanate.
A kind of 6. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（5）The ultrasound
Frequency is 50~60kHz.
A kind of 7. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（6）The gluing
Glutinous agent thickness is 2~3mm；The hot pressing temperature is 70~100 DEG C, and pressure is 4~5MPa.
A kind of 8. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（7）The gluing
Glutinous agent thickness is 2~3mm；The hot pressing temperature is 70~100 DEG C, and pressure is 5~6MPa.
A kind of 9. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（8）The gluing
Glutinous agent thickness is 3~4mm；The hot pressing temperature is 70~100 DEG C, and pressure is 6~7MPa.
A kind of 10. preparation method of tension bamboo plywood according to claim 1, it is characterised in that：Step（9）The gluing
Glutinous agent thickness is 3~4mm；The hot pressing temperature is 70~100 DEG C, and pressure is 5~6 MPa.
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| CN109159240A (en) * | 2018-09-27 | 2019-01-08 | 佛山九陌科技信息咨询有限公司 | A kind of preparation method of stretch-proof bamboo-wood plyboard |
| CN110409744A (en) * | 2019-07-05 | 2019-11-05 | 长兴正发热电耐火材料有限公司 | A kind of structure and its detection method of mullite high temperature fiber plate |
| CN113400420A (en) * | 2021-05-24 | 2021-09-17 | 桃江风河智慧竹业有限公司 | Method for processing bamboo board used for bamboo carriage bottom board |
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| CN108658554A (en) * | 2018-05-15 | 2018-10-16 | 苗霞明 | A kind of preparation method of the porous autoclaved lime-sand brick of copper tailing |
| CN108729615A (en) * | 2018-05-18 | 2018-11-02 | 朱文杰 | A kind of preparation method of wooden carbon felt electric heating floor |
| CN109159240A (en) * | 2018-09-27 | 2019-01-08 | 佛山九陌科技信息咨询有限公司 | A kind of preparation method of stretch-proof bamboo-wood plyboard |
| CN110409744A (en) * | 2019-07-05 | 2019-11-05 | 长兴正发热电耐火材料有限公司 | A kind of structure and its detection method of mullite high temperature fiber plate |
| CN113400420A (en) * | 2021-05-24 | 2021-09-17 | 桃江风河智慧竹业有限公司 | Method for processing bamboo board used for bamboo carriage bottom board |
| CN113771176A (en) * | 2021-09-23 | 2021-12-10 | 安吉瑞宝家具有限公司 | Preparation method of whole bamboo decorative veneer and decorative application on surface of office chair |
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