CN106217576A - A kind of Masson Pine Mianzhu laminated particle-board - Google Patents
A kind of Masson Pine Mianzhu laminated particle-board Download PDFInfo
- Publication number
- CN106217576A CN106217576A CN201610619088.4A CN201610619088A CN106217576A CN 106217576 A CN106217576 A CN 106217576A CN 201610619088 A CN201610619088 A CN 201610619088A CN 106217576 A CN106217576 A CN 106217576A
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- mianzhu
- raw material
- masson pine
- board
- wood
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Classifications
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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
- B27K3/002—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process employing compositions comprising microorganisms
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/003—Pretreatment of moulding material for reducing formaldehyde gas emission
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- 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
-
- 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
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- 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
Abstract
The invention discloses the production method of a kind of Masson Pine Mianzhu laminated particle-board: (1) prepares raw material: first Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry for standby；Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, at 45 DEG C, be incubated impregnation process about 100 180min post-drying standby；Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule 0.3mm, top layer wood shavings fine grinding to 0.1mm；(2) extrusion chipboard；(3) heat treatment: prepare particieboard and be incubated 18 25min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
Description
Technical field
The present invention relates to a kind of Masson Pine Mianzhu laminated particle-board and production technology thereof, belong to bamboo wood manufacture field.
Background technology
Bamboo-wood composite material refer to bamboo wood and timber be combined with identical or different construction unit form and glued joint and
The composite board become or square bar, it has various ways, such as bamboo wood composite veneer, laminated bamboo-wood composite lumber, the compound plane of bamboo wood
Card and medium density fibre board (MDF), bamboo batten aligned lumber etc..Dividing from the angle of materials classification, it is broadly divided into structure and uses
Bamboo-wood composite material and the big class of Functiaonl bamboo wood composite material two.Wherein, structure bamboo-wood composite material mainly makees engineering structure
Part uses；And Functiaonl bamboo wood composite material is mainly used in decoration and furniture makes.
Particieboard is one of main wood-based plate kind, and compared with the wood-based plate such as fibre board, plywood, particieboard manufactures raw material
Based on small firewood material and harvesting of wood processing fent, unit product consumable quantity is lower, has timber resources comprehensive utilization ratio
The advantage high, cost of goods manufactured is low.In order to ensure the technological quality of product, tradition particieboard manufactures general requirement and manufactures former
The Wood Properties Within ratio of material is more consistent.In particieboard manufacture process, if the fibre length of raw material, strength difference are too big, Yi Zao
In one-tenth particieboard plate, density and mechanical strength are uneven, affect product quality.Bamboo wood and timber are that 2 kinds of fibre lengths are with strong
The raw material of degree very different, utilizes wood bamboo mixing raw material to produce qualified particieboard product more difficult.
Prior art is disclosed the production technology of a kind of environment-friendly high-intensity bamboo wood laminated particle-board, and bamboo fibre is omitted anti-by it
Rotten step, employing laccase dosage: 8-10 U/g bamboo fibre, tilactase dosage: 1-1.3 U/g bamboo fibre carries out specified temp
Isothermal holding certain time, and carry out Moderate High Temperature process after pressing, can effectively bamboo fibre be modified, to reduce
Glue quantity, but keeps the highest intensity, durable more resistant to mill.Result: MOR is 26.1-28.6Mpa, internal bond strength is
1.21-1.30 Mpa, free formaldehyde release is 2.4-2.6 mg/100g, and expansion rate of water absorption is 4.1-4.6%.But this work
Skill needs to carry out isothermal holding under 400 DEG C of high temperature, and internal bond strength is the most inadequate.
It is desirable to provide a kind of Masson Pine Mianzhu laminated particle-board and production technology thereof, use glue is greatly reduced
Amount, on the basis of reducing burst size of methanal, it is not necessary to high-temperature process, i.e. has high intensity and relatively low expansion rate of water absorption.
Summary of the invention
The technical problem existed based on background technology, the present invention is directed to the problem that background technology exists, it is provided that a kind of Masson Pine
Mianzhu laminated particle-board and production technology thereof, be greatly reduced glue quantity, on the basis of reducing burst size of methanal, is further without
Want high-temperature process, i.e. there is high intensity and relatively low expansion rate of water absorption.
The purpose of the present invention is achieved through the following technical solutions:
A kind of production method of Masson Pine Mianzhu laminated particle-board, its step is as follows:
(1) raw material is prepared:
First Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry standby
With；
Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, insulation dipping at 45 DEG C
Process about 100-180min post-drying standby；
Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule
0.3mm, top layer wood shavings fine grinding to 0.1mm；
Described biological enzyme additive is made up of the raw material of following parts by weight: 0.6 part of laccase, 0.2-0.8 part liquid Chymosin；
0.5-0.9 part inulin, 0.3 part of polydextrose, 100 parts of pure water；
Wherein said laccase activity is 50,000 units, and liquid Chymosin vigor is 1.3 ten thousand units；
(2) extrusion chipboard:
The low mole prop0rtion environment-friendly urea-formaldehyde resin glue selecting mol ratio 1.0 carries out applying glue with blender gas streaming glue spraying method, glue consumption is
29kg (dry glue)/cubic meter, hot pressing pressure 3.3MPa, hot pressing temperature 180 DEG C, hot pressing time 30s mm-1, prepare particieboard；
(3) heat treatment: prepare particieboard and be incubated 18-25min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
The invention have benefit that:
1. present invention process environmental protection, greatly reduces glue quantity, reduces burst size of methanal.
2. the bamboo wood laminated particle-board of the present invention need not high-temperature process, i.e. has high intensity and relatively low water suction is swollen
Swollen rate.
Detailed description of the invention
Embodiment 1:
A kind of production method of Masson Pine Mianzhu laminated particle-board, its step is as follows:
(1) raw material is prepared:
First Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry standby
With；
Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, insulation dipping at 45 DEG C
Process about 100min post-drying standby；
Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule
0.3mm, top layer wood shavings fine grinding to 0.1mm；
Described biological enzyme additive is made up of the raw material of following parts by weight: 0.6 part of laccase, 0.8 part of liquid Chymosin；0.5 part
Inulin, 0.3 part of polydextrose, 100 parts of pure water；
Wherein said laccase activity is 50,000 units, and liquid Chymosin vigor is 1.3 ten thousand units；
(2) extrusion chipboard:
The low mole prop0rtion environment-friendly urea-formaldehyde resin glue selecting mol ratio 1.0 carries out applying glue with blender gas streaming glue spraying method, glue consumption is
29kg (dry glue)/cubic meter, hot pressing pressure 3.3MPa, hot pressing temperature 180 DEG C, hot pressing time 30s mm-1, prepare particieboard；
(3) heat treatment: prepare particieboard and be incubated 25min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
Result: MOR is 26.9Mpa, internal bond strength is 2.8pa, and free formaldehyde release is 2.2mg/100g,
Expansion rate of water absorption is 1.8%.
Embodiment 2:
A kind of production method of Masson Pine Mianzhu laminated particle-board, its step is as follows:
(1) raw material is prepared:
First Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry standby
With；
Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, insulation dipping at 45 DEG C
Process about 180min post-drying standby；
Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule
0.3mm, top layer wood shavings fine grinding to 0.1mm；
Described biological enzyme additive is made up of the raw material of following parts by weight: 0.6 part of laccase, 0.2 part of liquid Chymosin；0.9 part
Inulin, 0.3 part of polydextrose, 100 parts of pure water；
Wherein said laccase activity is 50,000 units, and liquid Chymosin vigor is 1.3 ten thousand units；
(2) extrusion chipboard:
The low mole prop0rtion environment-friendly urea-formaldehyde resin glue selecting mol ratio 1.0 carries out applying glue with blender gas streaming glue spraying method, glue consumption is
29kg (dry glue)/cubic meter, hot pressing pressure 3.3MPa, hot pressing temperature 180 DEG C, hot pressing time 30s mm-1, prepare particieboard；
(3) heat treatment: prepare particieboard and be incubated 18min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
Result: MOR is 33.6Mpa, internal bond strength is 2.0pa, and free formaldehyde release is 2.2mg/100g,
Expansion rate of water absorption is 3.1%.
Embodiment 3:
A kind of production method of Masson Pine Mianzhu laminated particle-board, its step is as follows:
(1) raw material is prepared:
First Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry standby
With；
Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, insulation dipping at 45 DEG C
Process about 110min post-drying standby；
Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule
0.3mm, top layer wood shavings fine grinding to 0.1mm；
Described biological enzyme additive is made up of the raw material of following parts by weight: 0.6 part of laccase, 0.7 part of liquid Chymosin；0.6 part
Inulin, 0.3 part of polydextrose, 100 parts of pure water；
Wherein said laccase activity is 50,000 units, and liquid Chymosin vigor is 1.3 ten thousand units；
(2) extrusion chipboard:
The low mole prop0rtion environment-friendly urea-formaldehyde resin glue selecting mol ratio 1.0 carries out applying glue with blender gas streaming glue spraying method, glue consumption is
29kg (dry glue)/cubic meter, hot pressing pressure 3.3MPa, hot pressing temperature 180 DEG C, hot pressing time 30s mm-1, prepare particieboard；
(3) heat treatment: prepare particieboard and be incubated 24min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
Result: MOR is 30.1Mpa, internal bond strength is 2.7pa, and free formaldehyde release is 2.2mg/100g,
Expansion rate of water absorption is 1.9%.
Embodiment 4:
A kind of production method of Masson Pine Mianzhu laminated particle-board, its step is as follows:
(1) raw material is prepared:
First Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry standby
With；
Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, insulation dipping at 45 DEG C
Process about 170min post-drying standby；
Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule
0.3mm, top layer wood shavings fine grinding to 0.1mm；
Described biological enzyme additive is made up of the raw material of following parts by weight: 0.6 part of laccase, 0.3 part of liquid Chymosin；0.8 part
Inulin, 0.3 part of polydextrose, 100 parts of pure water；
Wherein said laccase activity is 50,000 units, and liquid Chymosin vigor is 1.3 ten thousand units；
(2) extrusion chipboard:
The low mole prop0rtion environment-friendly urea-formaldehyde resin glue selecting mol ratio 1.0 carries out applying glue with blender gas streaming glue spraying method, glue consumption is
29kg (dry glue)/cubic meter, hot pressing pressure 3.3MPa, hot pressing temperature 180 DEG C, hot pressing time 30s mm-1, prepare particieboard；
(3) heat treatment: prepare particieboard and be incubated 19min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
Result: MOR is 28.4Mpa, internal bond strength is 2.1pa, and free formaldehyde release is 2.2mg/100g,
Expansion rate of water absorption is 3.0%.
Embodiment 5:
A kind of production method of Masson Pine Mianzhu laminated particle-board, its step is as follows:
(1) raw material is prepared:
First Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry standby
With；
Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, insulation dipping at 45 DEG C
Process about 120min post-drying standby；
Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule
0.3mm, top layer wood shavings fine grinding to 0.1mm；
Described biological enzyme additive is made up of the raw material of following parts by weight: 0.6 part of laccase, 0.6 part of liquid Chymosin；0.7 part
Inulin, 0.3 part of polydextrose, 100 parts of pure water；
Wherein said laccase activity is 50,000 units, and liquid Chymosin vigor is 1.3 ten thousand units；
(2) extrusion chipboard:
The low mole prop0rtion environment-friendly urea-formaldehyde resin glue selecting mol ratio 1.0 carries out applying glue with blender gas streaming glue spraying method, glue consumption is
29kg (dry glue)/cubic meter, hot pressing pressure 3.3MPa, hot pressing temperature 180 DEG C, hot pressing time 30s mm-1, prepare particieboard；
(3) heat treatment: prepare particieboard and be incubated 23min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
Result: MOR is 32.7Mpa, internal bond strength is 2.6pa, and free formaldehyde release is 2.2mg/100g,
Expansion rate of water absorption is 2.0%.
As can be seen here, present invention process environmental protection, greatly reduce glue quantity, reduce burst size of methanal, and this
Bright bamboo wood laminated particle-board need not high-temperature process, it is not necessary to high-temperature process, i.e. has high intensity and relatively low water suction is swollen
Swollen rate.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (5)
1. a production method for Masson Pine Mianzhu laminated particle-board, its step is as follows:
(1) raw material is prepared:
First Mianzhu raw material is carried out mechanical activation comminution, put in the aqueous trehalose of 0.5% mass fraction and soak 2 hours, dry standby
With；
Masson Pine raw material is carried out mechanical activation comminution, puts into the biological enzyme additive of 10 times of weight of pine sawdust, insulation dipping at 45 DEG C
Process about 100-180min post-drying standby；
Then wood, bamboo raw material are uniformly mixed by 1.5:1 weight ratio, sort after drying, sandwich layer wood bamboo bits wood shavings granule
0.3mm, top layer wood shavings fine grinding to 0.1mm；
Described biological enzyme additive is made up of the raw material of following parts by weight: 0.6 part of laccase, 0.2-0.8 part liquid Chymosin；
0.5-0.9 part inulin, 0.3 part of polydextrose, 100 parts of pure water；
(2) extrusion chipboard:
The low mole prop0rtion environment-friendly urea-formaldehyde resin glue selecting mol ratio 1.0 carries out applying glue with blender gas streaming glue spraying method, glue consumption is
29kg (dry glue)/cubic meter, hot pressing pressure 3.3MPa, hot pressing temperature 180 DEG C, hot pressing time 30s mm-1, prepare particieboard；
(3) heat treatment: prepare particieboard and be incubated 18-25min at 200 DEG C, prepare Masson Pine Mianzhu laminated particle-board.
2. described in claim 1 the production method of Masson Pine Mianzhu laminated particle-board, it is characterised in that:
Wherein said laccase activity is 50,000 units, and liquid Chymosin vigor is 1.3 ten thousand units.
3. the production method of the Masson Pine Mianzhu laminated particle-board described in claim 1-2, it is characterised in that:
Described bamboo raw material is Mianzhu.
4. the production method of the Masson Pine Mianzhu laminated particle-board described in claim 1-2, it is characterised in that:
Described wood raw material is Masson Pine.
5. the production method described in any one of claim 1-4 produces the Masson Pine Mianzhu laminated particle-board obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619088.4A CN106217576A (en) | 2016-08-02 | 2016-08-02 | A kind of Masson Pine Mianzhu laminated particle-board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619088.4A CN106217576A (en) | 2016-08-02 | 2016-08-02 | A kind of Masson Pine Mianzhu laminated particle-board |
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| CN201610619088.4A Pending CN106217576A (en) | 2016-08-02 | 2016-08-02 | A kind of Masson Pine Mianzhu laminated particle-board |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107599109A (en) * | 2017-09-15 | 2018-01-19 | 淮阴师范学院 | Fiberboard subtracts gel preparation method |
| CN115741923A (en) * | 2022-11-24 | 2023-03-07 | 寿光市鲁丽木业股份有限公司 | Anti-corrosion and anti-bacterial bamboo oriented shaving board and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599109A (en) * | 2017-09-15 | 2018-01-19 | 淮阴师范学院 | Fiberboard subtracts gel preparation method |
| CN115741923A (en) * | 2022-11-24 | 2023-03-07 | 寿光市鲁丽木业股份有限公司 | Anti-corrosion and anti-bacterial bamboo oriented shaving board and preparation method thereof |
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Application publication date: 20161214 |