CN109693283A - A kind of method that resin pretreatment timber prepares functional timber - Google Patents
A kind of method that resin pretreatment timber prepares functional timber Download PDFInfo
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- CN109693283A CN109693283A CN201910186552.9A CN201910186552A CN109693283A CN 109693283 A CN109693283 A CN 109693283A CN 201910186552 A CN201910186552 A CN 201910186552A CN 109693283 A CN109693283 A CN 109693283A
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- timber
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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
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
-
- 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
-
- 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
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of methods that resin pretreatment timber prepares functional timber, and the invention belongs to Wood Property Improvement fields.Specific steps include following four part: succinic anhydride pre-processes timber, drying process, cyanurotriamide modified urea resin dipping succinic anhydride pretreatment timber and vacuum drying treatment.It is to be pre-processed using succinic anhydride to the wood sample below of moisture content 20% first, obtains butanedioic anhydride modification timber after dry.Then, water-soluble low molecular weight cyanurotriamide modified urea resin is impregnated into butanedioic anhydride modification wood using vacuum pressed dipping technique, vacuum drying treatment then is carried out to the timber after dipping, finally obtain functional timber.The method that the present invention uses is compared to single resin impregnation, resin impregnates modifying agent can pre-process the new secured chemical bond of timber generation with succinic anhydride, wood dimensional stability, mechanical property and the durability not only prepared are enhanced, but also impart the excellent thermal stability of timber and flame retardant property.
Description
Technical field
The present invention relates to Wooden modifying fields, and in particular to a kind of resin pretreatment timber prepares functional timber
Method.
Background technique
Timber is widely used in engineering and builds as a kind of renewable green resource abundant because it is with excellent performance
Build material.Such as: (1) ratio of strength to weight of timber than general metal bigger, i.e., density of wood is low and intensity is big；(2) grain of wood beauty
It sees, color is abundant, can play special decorative effect and can effectively adsorb to the harmful ultraviolet light of human visual again, give
Comfortably, healthy；(3) timber has good heat, electrical insulating property, can be applied to the handle of utensil；(4) timber has excellent
Elastoplasticity increases the safety used；(5) timber can have good environmental suitability with temperature adjustment wet down.But with this
Meanwhile there is also some disadvantages for timber itself.Such as: (1) timber have abundant hydroxyl, easy drying shrinkage bulking, dimensionally stable
Property is poor.And due to anisotropy, all there is differences for the drying shrinkage bulking of timber in all directions, this may cause timber and opens
Split, warpage the defects of；(2) timber is easy rotten and damages by worms；(3) timber easy firing；(4) growth cycle of some superior woods
Long, although at high cost, fast growing wood growth cycle shortens, and properties are unsatisfactory, can not put into practical application.
The development of timber industry at present is with fast-growing woods from stepping into using wildwood as the stage of primary raw material
The stage of primary raw material.Although the technology for being modified optimization processing to fast growing wood is becoming better and approaching perfection day by day, modified timber still faces
The problems such as functionality is single, and range of applicability is limited.Therefore in order to make modified fast growing wood not only obtain excellent mechanical property
And dimensional stability, and specific functionality can be obtained, increase the scope of application, and then particular functionality material can be used as
Applied to reality, this research will become inexorable trend.Common method for modifying wood has: one, wood acetylation, and principle is benefit
Esterification occurs with acetylation reagent and timber hydroxyl, to reduce the hydroxyl and hydrone knot in wood cell wall polymer
The chance of conjunction, therefore the timber that acetylation process is crossed has the characteristics that good dimensional stability and rotproofness.But it is same with this
When, by-product acetic acid and some unreacted acid anhydrides are easy to produce in wood acetylation modifying process.And cellulose, hemicellulose
Element is easy degradation in acid condition, can further result in the decline of strength of wood.Up to the present, acetic acid in wood acetylation
It is not solved effectively yet with the problem of processing of acid anhydrides, the application range of acetylate wood is restricted.Therefore, industrial prospect
And it is pessimistic；Two, timber pickling is modified, wherein the Chinese patent of Patent No. CN201510320248.0 using phenolic resin,
Lauxite handles timber pickling and is modified as modification agent, and entering after the resin dry solidification of wood internal can
Greatly improve the surface hardness and wearability of fast growing wood.However select phenolic aldehyde or Lauxite as modifying agent, although to wood
Material performance brings a promotion, but resin dipping handles timber as a kind of physics mode, has no between modifying agent and timber
Firm chemical bond linkage, this has resulted in the durability of improved wood and service life is short, secondly exists in timber abundant
Hydroxyl reduce hydrone to a certain extent although the reticular structure that is formed by curing plugs timber duct after resin dipping
With the chance of hydroxy combining, but still dimensional stability problems existing for timber can not be fundamentally solved.Therefore, simple using tree
Rouge impregnated timber effect is still undesirable；Chinese patent application No. is 200810030688.2 is to utilize beeswax impregnation timber
Wood dimensional stability and surface hydrophobic are assigned, but the hydrophobic effect durability of beeswax is poor, service life is short, this is to timber size
Stability is promoted also almost without too big promotion.And the wood surface of Lasaxing Oilfield is subject to pollute, to fire-retarding of wood and weatherability
Almost without improvement；Three, heat-treated wood method, this method be timber is placed in the high temperature heat treatment furnace of 120-150 degree so that
Moisture content is reduced to 5% hereinafter, be warming up to 200-240 degree immediately, keeps the temperature 2-3 hours；Then reduce temperature to 100 degree with
Under, timber is being handled using steam, up to moisture content to 7-10%；The temperature for finally continuing to reduce reacting furnace is straight
Temperature to wood internal is come out of the stove after being 40 degree or so, and dry 2 weeks or more the time of gas is under Atmospheric Condition to obtain hot place
Manage timber.Carrying out short-term pyrolysis processing to timber is a kind of environment-friendly type timberphysics protection technique, can not only improve timber
Size and color, and stability, durability can also be enhanced.But heat-treated wood consumption energy cost is higher, is difficult simultaneously
Prepare the product of uniform quality, and the high-temperature heat treatment stage due to being mixed into oxygen, timber can be made to be easy quilt during processing
Oxidation, causes the reduction of strength of wood, so that the scope of application of the heat-treated wood of limitation, causes the big discounting of its application value
Button；Four, the emerging subversiveness in recent years, being widely recognized and furtheing investigate innovates technologies-the bionical lotus leaf of nano superhydrophobic from
Clean technologies can make timber fundamentally waterproof and have automatically cleaning technology, be the applications with great potential.But
Being that this technology can not synchronize assigns timber preventing oil pollution, anti-corrosion, fire-retardant, outdoor fast light time etc., still has different degrees of ask
Topic, technical conditions are still immature.
Summary of the invention
It is single to solve product function present in existing Wooden modifying, the problems such as persistence is poor, and preparation process is complicated, this
The purpose of invention is to provide the method for improved wood, pre-processes first with succinic anhydride to timber, promotes the same of wood performance
When, so that timber is obtained carboxyl grafting anchor point, and add functional form modifying agent: cyanurotriamide modified urea resin again, by true
Empty impregnating by pressure pre-processes timber, and timber transfers after pre-processing the functional group of cyanurotriamide modified urea resin with succinic anhydride
Anchor point in-situ polymerization is connect, to assign timber excellent dimensional stability, durability, mechanical performance, thermal stability and fire-retardant
Property.
The present invention is achieved by the following technical solutions:
In order to achieve the object of the present invention, timber used herein is the poplar of identical conditions.The present invention mentions first
For a kind of method that resin pretreatment timber prepares functional timber,.Method includes the following steps:
(1) timber pre-processes: preparing succinic anhydride and n,N-Dimethylformamide according to mass ratio 1-2:4, prepares pre- place
Manage modifying agent；Succinic anhydride is added in n,N-Dimethylformamide organic solvent first, with magnetic stirring apparatus with 100rpm-
The speed of 300rpm stirs 10-20min, and is heated to 50 DEG C, is completely dissolved succinic anhydride.Then, by the wood of certain size
Block is added in solution, is handled timber 3-6 hours at 50-90 DEG C.
(2) be dried: by step (1), treated that timber takes out from reaction solution, after being cooled to room temperature, uses second
Alcohol carrying out washing treatment material is to remove unreacted succinic anhydride and remaining N ,-N-dimethylformamide.Wooden unit is finally placed 70
DEG C baking oven in dry reach 13%-18% to until moisture content.
(3) it resin-impregnated wood: by the timber of step (2) after dry, is placed in impregnating autoclave, will be evacuated in tank body
When 0.08-0.1MPa negative pressure state, 30-40min is kept；Then, resin solution is injected under the negative pressure state and is full of tank
Body；Pressure in tank body is adjusted to 0.8-1.0MPa again, keeps 100-120min, make resin solution be sufficiently injected wood cell wall and
In lumen；Pressure relief takes out treated timber.
(4) vacuum drying treatment: the timber prepared in step (3) is put into vacuum drying tank, Wood temperature is heated to
Reach 50-80 DEG C, then to being evacuated between -0.04--0.06MPa in tank, keeps the temperature and vacuum state in tank, it is dry
Timber is to moisture content 5%-12%.
The beneficial effects of the present invention are embodied in following several respects:
One, the present invention pre-processes timber using succinic anhydride, is esterified succinic anhydride under the high temperature conditions with timber
Reaction, to reduce timber hydroxyl quantity, enhances the dimensional stability of timber, while the hydroxyl shape of modifying agent and wood cell wall
At new chemical bond enhance the mechanical strength of timber.
Two, being capable of forming new chemical bond i.e. carboxyl after timber pretreatment in the present invention can be used as new grafting anchor point, into
One step is chemically reacted with specific functional reagent, enhances the durability degree of timber while assigning timber specific function,
Greatly enhance timber service life.
Three, the pretreated timber of succinic anhydride, the grafting anchor of resin and pretreatment material are impregnated using resin in the present invention
Point combines and forms firm chemical bond, and not only timber obtains excellent mechanical performance, not easy to break, warpage and fold, Er Qiemu
Material obtains excellent flame retardant property and hydrophobicity.
Four, timber-cyanurotriamide modified urea resin vacuum pressed impreg is pre-processed by succinic anhydride in the present invention
Material-drying Combined Treatment timber, modified timber weight-loss ratio is lower, and assigns lumber functionality and elevating mechanism performance,
Simple production process reduces production cost.
Detailed description of the invention
Fig. 1 is the infrared spectrogram of 4 kinds of timber in experiment；
Fig. 2 is the dimensional stability analysis chart of 4 kinds of timber in experiment；
Fig. 3 is the thermogravimetric analysis figure of 4 kinds of timber in experiment；
Fig. 4 is the anti-flammability test of timber in 4 in experiment；
Fig. 5 is the process flow chart of the combined modified timber of the present invention.
Specific embodiment
The technical solution of the present invention is not limited to the following list, further includes between each specific embodiment
Any combination.In order to compare the performance of variant embodiment and reference examples processing material, timber used in following embodiment is poplar
The chemical reagent of wooden and same specification:
Embodiment 1
(1) timber pre-processes: preparing succinic anhydride and n,N-Dimethylformamide, preparation pretreatment according to mass ratio 1:4
Modifying agent；Succinic anhydride is added in n,N-Dimethylformamide organic solvent first, with magnetic stirring apparatus with 200rpm's
Speed stirs 20min, and is heated to 50 DEG C, is completely dissolved succinic anhydride.Then, the wooden unit of certain size is added to solution
In, it is handled timber 3 hours at 70 DEG C.
(2) be dried: by treated, timber takes out from reaction solution, after being cooled to room temperature, uses ethanol washing
Material is handled to remove unreacted succinic anhydride and remaining N ,-N-dimethylformamide.Wooden unit is finally placed to 70 DEG C of baking
It is dry in case to reach 15% to until moisture content.
(3) resin-impregnated wood: the pretreatment timber after drying is placed in impregnating autoclave, will be evacuated in tank body
When 0.08-0.1MPa negative pressure state, 40min is kept；Then, resin solution is injected under the negative pressure state and is full of tank body；
Pressure in tank body is adjusted to 0.8-1.0MPa again, 100min is kept, resin solution is made to be sufficiently injected wood cell wall and lumen
It is interior；Pressure relief takes out treated timber.
(4) vacuum drying treatment: the timber after dipping is put into vacuum drying tank, is heated to Wood temperature and is reached 60
DEG C, then to being evacuated between -0.04--0.06MPa in tank, keep the temperature and vacuum state in tank, desiccated wood is to aqueous
Rate 10%.
Embodiment 2
(1) timber pre-processes: preparing succinic anhydride and n,N-Dimethylformamide, preparation pretreatment according to mass ratio 2:5
Modifying agent；Succinic anhydride is added in n,N-Dimethylformamide organic solvent first, with magnetic stirring apparatus with 300rpm's
Speed stirs 20min, and is heated to 50 DEG C, is completely dissolved succinic anhydride.Then, the wooden unit of certain size is added to solution
In, it is handled timber 4 hours at 80 DEG C.
(2) be dried: by treated, timber takes out from reaction solution, after being cooled to room temperature, uses ethanol washing
Material is handled to remove unreacted succinic anhydride and remaining N ,-N-dimethylformamide.Wooden unit is finally placed to 70 DEG C of baking
It is dry in case to reach 14% to until moisture content.
(3) resin-impregnated wood: the pretreatment timber after drying is placed in impregnating autoclave, will be evacuated in tank body
When 0.08-0.1MPa negative pressure state, 40min is kept；Then, resin solution is injected under the negative pressure state and is full of tank body；
Pressure in tank body is adjusted to 0.8-1.0MPa again, 120min is kept, resin solution is made to be sufficiently injected wood cell wall and lumen
It is interior；Pressure relief takes out treated timber.
(4) vacuum drying treatment: the timber after dipping is put into vacuum drying tank, is heated to Wood temperature and is reached 70
DEG C, then to being evacuated between -0.04--0.06MPa in tank, keep the temperature and vacuum state in tank, desiccated wood is to aqueous
Rate 8%.
Embodiment 3
(1) timber pre-processes: preparing succinic anhydride and n,N-Dimethylformamide, preparation pretreatment according to mass ratio 1:2
Modifying agent；Succinic anhydride is added in n,N-Dimethylformamide organic solvent first, with magnetic stirring apparatus with 300rpm's
Speed stirs 20min, and is heated to 50 DEG C, is completely dissolved succinic anhydride.Then, the wooden unit of certain size is added to solution
In, it is handled timber 6 hours at 90 DEG C.
(2) be dried: by treated, timber takes out from reaction solution, after being cooled to room temperature, uses ethanol washing
Material is handled to remove unreacted succinic anhydride and remaining N,N-dimethylformamide.Wooden unit is finally placed to 70 DEG C of baking
It is dry in case to reach 13% to until moisture content.
(3) resin-impregnated wood: the pretreatment timber after drying is placed in impregnating autoclave, will be evacuated in tank body
When 0.08-0.1MPa negative pressure state, 40min is kept；Then, resin solution is injected under the negative pressure state and is full of tank body；
Pressure in tank body is adjusted to 0.8-1.0MPa again, 120min is kept, resin solution is made to be sufficiently injected wood cell wall and lumen
It is interior；Pressure relief takes out treated timber.
(4) vacuum drying treatment: the timber after dipping is put into vacuum drying tank, is heated to Wood temperature and is reached 80
DEG C, then to being evacuated between -0.04--0.06MPa in tank, keep the temperature and vacuum state in tank, desiccated wood is to aqueous
Rate 7%.
Reference examples 1
Untreated timber, after gas is dry, moisture content 13%
Reference examples 2
(1) timber pre-processes: preparing succinic anhydride and n,N-Dimethylformamide, preparation pretreatment according to mass ratio 1:2
Modifying agent；Succinic anhydride is added in n,N-Dimethylformamide organic solvent first, with magnetic stirring apparatus with 300rpm's
Speed stirs 20min, and is heated to 50 DEG C, is completely dissolved succinic anhydride.Then, the wooden unit of certain size is added to solution
In, it is handled timber 6 hours at 90 DEG C.
(2) be dried: by treated, timber takes out from reaction solution, after being cooled to room temperature, uses ethanol washing
Material is handled to remove unreacted succinic anhydride and remaining N,N-dimethylformamide.Wooden unit is finally placed to 70 DEG C of baking
It is dry in case to reach 13% to until moisture content.
Reference examples 3
(1) early period is dried: being 13% by Logs drying to moisture content
(2) resin-impregnated wood: the timber after above-mentioned drying is placed in impregnating autoclave, will be evacuated to 0.08- in tank body
When 0.1MPa negative pressure state, 40min is kept；Then, resin solution is injected under the negative pressure state and is full of tank body；Again by tank
Internal pressure is adjusted to 0.8-1.0MPa, keeps 120min, is sufficiently injected resin solution in wood cell wall and lumen；It releases
Pressure takes out treated timber.
(3) vacuum drying treatment: the timber after dipping is put into vacuum drying tank, is heated to Wood temperature and is reached 80
DEG C, then to being evacuated between -0.04--0.06MPa in tank, keep the temperature and vacuum state in tank, desiccated wood is to aqueous
Rate 7%.
Although being above described in detail with a general description of the specific embodiments to the present invention, at this
On the basis of invention, some modifications or improvement can be made to it, this will be apparent to those skilled in the art.Cause
This, these made without departing from theon the basis of the spirit of the present invention are improved or are modified, and belong to claimed model
It encloses.
Claims (6)
1. a kind of method that resin pretreatment timber prepares functional timber, it is characterised in that: this method includes following step
It is rapid:
(1) timber pre-processes: preparing succinic anhydride and n,N-Dimethylformamide according to mass ratio 1-2:4, preparation pretreatment changes
Property agent；Succinic anhydride is added in n,N-Dimethylformamide organic solvent first, with magnetic stirring apparatus with 100rpm-
The speed of 300rpm stirs 10-20min, and is heated to 50 DEG C, is completely dissolved succinic anhydride；Then, by the wood of certain size
Block is added in solution, is handled timber 3-6 hours at 50-90 DEG C；
(2) be dried: by step (1), treated that timber takes out from reaction solution, after being cooled to room temperature, is washed using ethyl alcohol
Wash processing material to remove unreacted succinic anhydride and N ,-N-dimethylformamide；Finally wooden unit is placed in 70 DEG C of baking oven
It is dry to reach 13%-18% to until moisture content；
(3) it resin-impregnated wood: by the timber of step (2) after dry, is placed in impregnating autoclave, 0.08- will be evacuated in tank body
When 0.1MPa negative pressure state, 30-40min is kept；Then, resin solution is injected under the negative pressure state and is full of tank body；Again
Pressure in tank body is adjusted to 0.8-1.0MPa, 100~120min is kept, resin solution is made to be sufficiently injected wood cell wall and cell
It is intracavitary；Pressure relief takes out treated timber；
(4) vacuum drying treatment: the timber prepared in step (3) is put into vacuum drying tank, Wood temperature is heated to and reaches
50-80 DEG C, then to being evacuated between -0.04--0.06MPa in tank, keep the temperature and vacuum state in tank, desiccated wood
To moisture content 5%-12%.
2. a kind of method that resin pretreatment timber prepares functional timber, feature described in 1 according to required by right
Be: selected wood sample is dried to moisture content 20% hereinafter, then carrying out wood described in step (1) to timber
Material pretreatment.
3. the method that a kind of resin pretreatment timber according to claim 1 prepares functional timber, feature exist
In: the specific steps (2) are dried, and are needed before drying process using ethanol washing step (1) treated timber to go
Except unreacted succinic anhydride and organic solvent N ,-N-dimethylformamide.
4. the method that a kind of resin pretreatment timber according to claim 1 prepares functional timber, feature exist
In: step (3) the resin-impregnated wood stage, the resin of selection are cyanurotriamide modified Lauxite, the tree configured
Lipoprotein solution is dissolved in water and is made.
5. a kind of method that resin pretreatment timber prepares functional timber described in 1 and 2, special according to required by right
Sign is: timber pretreatment stage early period, needs to add succinic anhydride in organic solvent n,N-Dimethylformamide, to make
Succinic anhydride is completely dissolved, and takes the mode heated while stirring.
6. a kind of method that resin pretreatment timber prepares functional timber described in 1 and 4, special according to required by right
Sign is: resin-impregnated wood is using vacuum pressed impregnation, and after vacuum pressed impregnation, resin can fill
Divide and enters in the lumen and cell wall of wood internal.
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| CN201910186552.9A CN109693283A (en) | 2019-03-12 | 2019-03-12 | A kind of method that resin pretreatment timber prepares functional timber |
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| CN201910186552.9A CN109693283A (en) | 2019-03-12 | 2019-03-12 | A kind of method that resin pretreatment timber prepares functional timber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873107A (en) * | 2020-07-21 | 2020-11-03 | 德华兔宝宝装饰新材股份有限公司 | Method for manufacturing flame-retardant and heat-preservation light wood base material |
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| CN105563579A (en) * | 2015-12-23 | 2016-05-11 | 中国林业科学研究院木材工业研究所 | High-permeability resin type timber enhancing modifier and efficient immersion treatment control method |
| CN108453853A (en) * | 2017-10-17 | 2018-08-28 | 徐州顺平生物科技有限公司 | A kind of high fire-retardance timber |
| CN108818785A (en) * | 2018-06-25 | 2018-11-16 | 南京林业大学 | A kind of palm wood plywood and preparation method thereof |
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2019
- 2019-03-12 CN CN201910186552.9A patent/CN109693283A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10329109A (en) * | 1997-05-30 | 1998-12-15 | Okura Ind Co Ltd | Woody material filler and its manufacture |
| CN101830015A (en) * | 2010-03-24 | 2010-09-15 | 程怡 | Method for processing polysaccharide material with polymer composition |
| CN101954662A (en) * | 2010-09-15 | 2011-01-26 | 东北林业大学 | Method for modifying wood by filling grafted cell walls with organic monomers and polymerization-filling cell cavities |
| CN105563579A (en) * | 2015-12-23 | 2016-05-11 | 中国林业科学研究院木材工业研究所 | High-permeability resin type timber enhancing modifier and efficient immersion treatment control method |
| CN108453853A (en) * | 2017-10-17 | 2018-08-28 | 徐州顺平生物科技有限公司 | A kind of high fire-retardance timber |
| CN108818785A (en) * | 2018-06-25 | 2018-11-16 | 南京林业大学 | A kind of palm wood plywood and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873107A (en) * | 2020-07-21 | 2020-11-03 | 德华兔宝宝装饰新材股份有限公司 | Method for manufacturing flame-retardant and heat-preservation light wood base material |
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Application publication date: 20190430 |