CN107160519B - A kind of carbonization treatment method of wooden boards - Google Patents
A kind of carbonization treatment method of wooden boards Download PDFInfo
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- CN107160519B CN107160519B CN201710254269.6A CN201710254269A CN107160519B CN 107160519 B CN107160519 B CN 107160519B CN 201710254269 A CN201710254269 A CN 201710254269A CN 107160519 B CN107160519 B CN 107160519B
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- 238000003763 carbonization Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000007654 immersion Methods 0.000 claims abstract description 21
- 238000012986 modification Methods 0.000 claims abstract description 9
- 230000004048 modification Effects 0.000 claims abstract description 9
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 22
- 238000004381 surface treatment Methods 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000000889 atomisation Methods 0.000 claims description 10
- 229930091371 Fructose Natural products 0.000 claims description 6
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 6
- 239000005715 Fructose Substances 0.000 claims description 6
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 6
- 239000008103 glucose Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 235000012343 cottonseed oil Nutrition 0.000 claims description 2
- 150000004676 glycans Chemical class 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 238000002525 ultrasonication Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 229920001542 oligosaccharide Polymers 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 208000016261 weight loss Diseases 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/06—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by burning or charring, e.g. cutting with hot wire
-
- 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
- B27K3/007—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process employing compositions comprising nanoparticles
-
- 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
-
- 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
- B27K5/007—Treating of wood not provided for in groups B27K1/00, B27K3/00 using pressure
-
- 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
- B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
-
- 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
- B27K2240/15—Decontamination of previously treated wood
-
- 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
- B27K2240/20—Removing fungi, molds or insects
Abstract
The invention discloses a kind of carbonization treatment methods of wooden boards, include the following steps：（1）Plate cleaning,（2）Surface modification treatment,（3）Immersion treatment,（4）Carbonization treatment,（5）Cooling treatment.Carbonization treatment method of the present invention can effectively promote the carbonization effect to wooden boards, the thickness of its surface carbonation layer is effectively promoted, the carbonation rate of its skin-material is also improved very well, the nano silicon dioxide rationally added simultaneously enhances the density and mechanical characteristic on surface layer again, the defect rate of processing is substantially reduced, and has good use value.
Description
Technical field
The invention belongs to wood processing technique fields, and in particular to a kind of carbonization treatment method of wooden boards.
Background technology
Timber is one of essential substance in people's life, in order to enhance the performance of timber, it is sometimes desirable to timber
Carry out carbonization treatment.Timber can not only make its surface more aesthetically pleasing after high temperature cabonization is handled, and also make it have anti-corrosion and resist
Biological attack, resistance to deformation cracking, heat safe advantage, and have again moisture content is low, not hygroscopic, stable material quality, it is indeformable,
Complete degreasing is not overflow fat, the features such as heat-proof quality is good, without special odor.Although existing Wood carbonization processing method is a variety of more
Sample, carbide wood performance obtained have a good improvement, but its there are still it is certain the defects of, such as existing carbonization treatment is to timber
The carbonization treatment on surface is incomplete, causes still to be attacked be subject to microorganism during use, and its case hardness after carbonization
Abrasion resistance is declined, and affects its performance, therefore also needs to be improved carbonization treatment technique.
The content of the invention
The purpose of the present invention is being directed to the problem of existing, a kind of carbonization treatment method of wooden boards is provided, it can be effective
Improve the Carbonization of plate, enhance its performance.
The present invention is achieved by the following technical solutions：
A kind of carbonization treatment method of wooden boards, includes the following steps：
（1）Plate cleans：
Plate to be processed is subjected to classification cutting process according to design requirement, then with clear water to treated plate into
Row rinses cleaning processing, washes away the impurity such as the sand, dirt, sawdust on surface, it is spare finally to drain surface moisture；
（2）Surface modification treatment：
By step（1）Treated, and plate is put into sealed furnace, after size classification is piled up, then will be atomized water vapour pair
Plate surface spray processing, while by the boost in pressure in sealed furnace to 3.5 ~ 4.0MPa, after being jointly processed by 25 ~ 35min
Decrease temperature and pressure processing is carried out to sealed furnace again, is after finishing taken out plate spare；
（3）Immersion treatment：
By step（2）Treated, and plate is put into surface treatment liquid, and plate is taken out to spare, institute after 1 ~ 2h of immersion treatment
Each ingredient and corresponding weight percent are in the surface treatment liquid stated：Glucose 5 ~ 8%, fructose 2 ~ 4%, five-carbon ring aldehydo sugar 1 ~ 3%, cotton
Seed oligosaccharide 1 ~ 2%, nano silicon dioxide 0.5 ~ 1.5%, surplus are water；
（4）Carbonization treatment：
By step（3）Treated, and plate is put into carbide furnace carries out carbonization treatment, wherein the temperature for keeping carbonization is 480
~ 560 DEG C, the pressure in carbide furnace is kept to be taken out plate after 10 ~ 15min of carbonization treatment spare for 3.4 ~ 4.2MPa；
（5）Cooling treatment：
By step（4）Plate taking-up after carbonization treatment, which is placed under natural conditions, to be cooled to room temperature.
Further, step（1）Described in clear water be deionized water.
Further, step（2）Described in plate surface be placed in always atomization water vapour atmosphere in.
Further, step（2）Described in atomization water vapour temperature control for 102 ~ 106 DEG C.
Further, step（2）Described in decrease temperature and pressure processing complete in 3 ~ 6min.
Further, step（3）Described in plate and surface treatment liquid volume ratio be 1：5~7.
Further, step（3）Described in while plate is put into immersion treatment in surface treatment liquid, also to plate
Apply the ultrasonication that frequency is 25 ~ 28kHz.The ultrasonication applied in immersion treatment not only contributes to be promoted wooden
Absorption of the plate for the active ingredient of surface treatment liquid, while be additionally favorable for eliminating in surface modification treatment step in wooden boards
Remaining stress helps to promote the yield rate of following process；
Further, step（4）Described in carbonization treatment when carbide furnace in protective gas be nitrogen.
The present invention has the following advantages compared with prior art：
The present invention has carried out targetedly improvement processing for the bad phenomenon of existing wooden boards carbonization treatment, wherein first
Wooden boards are put into sealed furnace and carry out surface modification treatment, under hyperbaric environment, surface is carried out using high-temperature water vapor
Steam-injection is handled, and fast pressure relief cools down again after a certain period of time, at this time can loose wooden boards surface well fibre structure, simultaneously
Grease etc. in skim-coat can also be gone to be beneficial to the material composition of microorganism growth, and provided the foundation for subsequent carbonization treatment, it
Special immersion treatment is carried out to it afterwards, glucose, fructose, the five-carbon ring aldehydo added in the surface treatment liquid used in immersion
Sugar and raffinose-oligosaccharide ingredient are filled in the surface of wooden boards, can in later stage carbonization treatment in wooden boards
Aromatic hydrocarbons structure lignocellulosic combine generation biomass carbon material, that is, effectively improve carbonation rate and carbonization effect, add simultaneously
The nano silicon dioxide added, which can be filled effectively, to be fixed in carburization zone, and then improves whole antibacterial, corrosion resistant, wear-resisting equivalent
Fruit finally by rational carbonization technique state modulator, has efficiently accomplished the carbonization treatment operation of wooden boards.Present invention carbonization
Processing method can effectively promote the carbonization effect to wooden boards, and the thickness of surface carbonation layer is effectively promoted, table
The carbonation rate of layer material is also improved very well, while the nano silicon dioxide rationally added enhances the density and power on surface layer again
Characteristic is learned, the defect rate of processing is substantially reduced, and has good use value.
Specific embodiment
Embodiment 1
A kind of carbonization treatment method of wooden boards, includes the following steps：
（1）Plate cleans：
Plate to be processed is subjected to classification cutting process according to design requirement, then with clear water to treated plate into
Row rinses cleaning processing, washes away the impurity such as the sand, dirt, sawdust on surface, it is spare finally to drain surface moisture；
（2）Surface modification treatment：
By step（1）Treated, and plate is put into sealed furnace, after size classification is piled up, then will be atomized water vapour pair
Plate surface spray processing, while the boost in pressure in sealed furnace to 3.5MPa is jointly processed by after 25min again to closed
Stove carries out decrease temperature and pressure processing, after finishing takes out plate spare；
（3）Immersion treatment：
By step（2）Treated, and plate is put into surface treatment liquid, plate taken out after immersion treatment 1h it is spare, it is described
Surface treatment liquid in each ingredient and corresponding weight percent be：Glucose 5%, fructose 2%, five-carbon ring aldehydo sugar 1%, raffinose-oligosaccharide
1%th, nano silicon dioxide 0.5%, surplus are water；
（4）Carbonization treatment：
By step（3）Treated, and plate is put into carbide furnace carries out carbonization treatment, wherein the temperature for keeping carbonization is 480
~ 500 DEG C, the pressure in carbide furnace is kept to be taken out plate after carbonization treatment 10min spare for 3.4MPa；
（5）Cooling treatment：
By step（4）Plate taking-up after carbonization treatment, which is placed under natural conditions, to be cooled to room temperature.
Further, step（1）Described in clear water be deionized water.
Further, step（2）Described in plate surface be placed in always atomization water vapour atmosphere in.
Further, step（2）Described in atomization water vapour temperature control for 102 ~ 106 DEG C.
Further, step（2）Described in decrease temperature and pressure processing complete in 3 ~ 4min.
Further, step（3）Described in plate and surface treatment liquid volume ratio be 1：5.
Further, step（3）Described in while plate is put into immersion treatment in surface treatment liquid, also to plate
Apply the ultrasonication that frequency is 25kHz.
Further, step（4）Described in carbonization treatment when carbide furnace in protective gas be nitrogen.
Embodiment 2
A kind of carbonization treatment method of wooden boards, includes the following steps：
（1）Plate cleans：
Plate to be processed is subjected to classification cutting process according to design requirement, then with clear water to treated plate into
Row rinses cleaning processing, washes away the impurity such as the sand, dirt, sawdust on surface, it is spare finally to drain surface moisture；
（2）Surface modification treatment：
By step（1）Treated, and plate is put into sealed furnace, after size classification is piled up, then will be atomized water vapour pair
Plate surface spray processing, while the boost in pressure in sealed furnace to 3.8MPa is jointly processed by after 30min again to closed
Stove carries out decrease temperature and pressure processing, after finishing takes out plate spare；
（3）Immersion treatment：
By step（2）Treated, and plate is put into surface treatment liquid, and plate is taken out to spare, institute after immersion treatment 1.5h
Each ingredient and corresponding weight percent are in the surface treatment liquid stated：Glucose 7%, fructose 3%, five-carbon ring aldehydo sugar 2%, cottonseed are oligomeric
Sugar 1.5%, nano silicon dioxide 1%, surplus is water；
（4）Carbonization treatment：
By step（3）Treated, and plate is put into carbide furnace carries out carbonization treatment, wherein the temperature for keeping carbonization is 500
~ 530 DEG C, the pressure in carbide furnace is kept to be taken out plate after carbonization treatment 12min spare for 3.8MPa；
（5）Cooling treatment：
By step（4）Plate taking-up after carbonization treatment, which is placed under natural conditions, to be cooled to room temperature.
Further, step（1）Described in clear water be deionized water.
Further, step（2）Described in plate surface be placed in always atomization water vapour atmosphere in.
Further, step（2）Described in atomization water vapour temperature control for 102 ~ 106 DEG C.
Further, step（2）Described in decrease temperature and pressure processing complete in 4 ~ 5min.
Further, step（3）Described in plate and surface treatment liquid volume ratio be 1：6.
Further, step（3）Described in while plate is put into immersion treatment in surface treatment liquid, also to plate
Apply the ultrasonication that frequency is 26kHz.
Further, step（4）Described in carbonization treatment when carbide furnace in protective gas be nitrogen.
Embodiment 3
A kind of carbonization treatment method of wooden boards, includes the following steps：
（1）Plate cleans：
Plate to be processed is subjected to classification cutting process according to design requirement, then with clear water to treated plate into
Row rinses cleaning processing, washes away the impurity such as the sand, dirt, sawdust on surface, it is spare finally to drain surface moisture；
（2）Surface modification treatment：
By step（1）Treated, and plate is put into sealed furnace, after size classification is piled up, then will be atomized water vapour pair
Plate surface spray processing, while the boost in pressure in sealed furnace to 4.0MPa is jointly processed by after 35min again to closed
Stove carries out decrease temperature and pressure processing, after finishing takes out plate spare；
（3）Immersion treatment：
By step（2）Treated, and plate is put into surface treatment liquid, plate taken out after immersion treatment 2h it is spare, it is described
Surface treatment liquid in each ingredient and corresponding weight percent be：Glucose 8%, fructose 4%, five-carbon ring aldehydo sugar 3%, raffinose-oligosaccharide
2%th, nano silicon dioxide 1.5%, surplus are water；
（4）Carbonization treatment：
By step（3）Treated, and plate is put into carbide furnace carries out carbonization treatment, wherein the temperature for keeping carbonization is 530
~ 560 DEG C, the pressure in carbide furnace is kept to be taken out plate after carbonization treatment 15min spare for 4.2MPa；
（5）Cooling treatment：
By step（4）Plate taking-up after carbonization treatment, which is placed under natural conditions, to be cooled to room temperature.
Further, step（1）Described in clear water be deionized water.
Further, step（2）Described in plate surface be placed in always atomization water vapour atmosphere in.
Further, step（2）Described in atomization water vapour temperature control for 102 ~ 106 DEG C.
Further, step（2）Described in decrease temperature and pressure processing complete in 5 ~ 6min.
Further, step（3）Described in plate and surface treatment liquid volume ratio be 1：7.
Further, step（3）Described in while plate is put into immersion treatment in surface treatment liquid, also to plate
Apply the ultrasonication that frequency is 28kHz.
Further, step（4）Described in carbonization treatment when carbide furnace in protective gas be nitrogen.
Comparative example 1
This comparative example 1 compared with Example 2, saves step（2）Surface modification treatment, method and step in addition are equal
It is identical.
Comparative example 2
This comparative example 2 compared with Example 2, in step（3）Ultrasonication operation is saved during immersion treatment, except this
Outer method and step all same.
Comparative example 3
This comparative example 3 compared with Example 2, saves step（3）Immersion treatment, method and step in addition are homogeneous
Together.
Control group
Existing conventional wooden boards carbonization treatment method.
It in order to compare effect of the present invention, selects with a collection of Paulownia wood board as experimental subjects, by its preprocessing into identical rule
After lattice size（Length and width are a height of：100cm×100 cm×5 cm）, then six groups are randomly divided into, wherein five groups respectively with above-mentioned implementation
Example 2, comparative example 1, comparative example 2, comparative example 3, the method described in control group carry out carbonization treatment, and another group is not
Any processing is done as blank control group, wooden boards carry out Quality Detection, specific correction data after finishing and to treated
It is as shown in table 1 below：
Table 1
Note：White rot weight-loss ratio and brown rot weight-loss ratio described in upper table 1 are the indexs to the reaction of plate corrosion resistant performance, specifically
It is that rotten experiment is carried out to wooden boards, is evaluated by weight-loss ratio, examination bacterium is Corilus versicolor Quel.（Corresponding white rot is weightless）
（It is provided by Chinese forest-science academy）, transverse hole fungus（Corresponding brown rot is weightless）（It is provided by Guangdong Ya Re institutes of microbiology）, experimental subjects
Surface is infected 3 months by bacterium, after scraping off surface mycelia and impurity, is dried to constant weight in 100 DEG C ± 5 DEG C of baking oven, every piece of experiment
Subject surface is weighed respectively；The cracking rate is that wooden boards are put into maximum temperature difference as 55 DEG C by treated（Maximum temperature
It controls as 70 ~ 75 DEG C）, relative humidity be 80 ~ 85% simulated experiment case in, statistics four months after each group plank cracking rate.
It can be seen from upper table 1 processing method of the present invention can effectively be promoted carbonized woody plate surface hardness and
Whole corrosion resistant characteristic, and it is not easy to crack, processing characteristics are good, and use value is higher.
Claims (8)
1. a kind of carbonization treatment method of wooden boards, which is characterized in that include the following steps：
（1）Plate cleans：
Plate to be processed is subjected to classification cutting process according to design requirement, then plate rushes to treated with clear water
Reason processing is washed down, the sand, dirt, sawdust impurity on surface is washed away, it is spare finally to drain surface moisture；
（2）Surface modification treatment：
By step（1）Treated, and plate is put into sealed furnace, after size classification is piled up, then will be atomized water vapour to plate
Surface spray processing, while by the boost in pressure in sealed furnace to 3.5 ~ 4.0MPa, and it is right again after 25 ~ 35min to be jointly processed by
Sealed furnace carries out decrease temperature and pressure processing, after finishing takes out plate spare；
（3）Immersion treatment：
By step（2）Treated, and plate is put into surface treatment liquid, plate taken out after 1 ~ 2h of immersion treatment it is spare, it is described
Each ingredient and corresponding weight percent are in surface treatment liquid：Glucose 5 ~ 8%, fructose 2 ~ 4%, five-carbon ring aldehydo sugar 1 ~ 3%, cottonseed are low
Glycan 1 ~ 2%, nano silicon dioxide 0.5 ~ 1.5%, surplus are water；
（4）Carbonization treatment：
By step（3）Treated, and plate is put into carbide furnace carries out carbonization treatment, wherein the temperature for keeping carbonization is 480 ~ 560
DEG C, the pressure in carbide furnace is kept to be taken out plate after 10 ~ 15min of carbonization treatment spare for 3.4 ~ 4.2MPa；
（5）Cooling treatment：
By step（4）Plate taking-up after carbonization treatment, which is placed under natural conditions, to be cooled to room temperature.
A kind of 2. carbonization treatment method of wooden boards according to claim 1, which is characterized in that step（1）Described in
Clear water be deionized water.
A kind of 3. carbonization treatment method of wooden boards according to claim 1, which is characterized in that step（2）Described in
Plate surface be placed in always atomization water vapour atmosphere in.
A kind of 4. carbonization treatment method of wooden boards according to claim 1, which is characterized in that step（2）Described in
Atomization water vapour temperature control for 102 ~ 106 DEG C.
A kind of 5. carbonization treatment method of wooden boards according to claim 1, which is characterized in that step（2）Described in
Decrease temperature and pressure processing complete in 3 ~ 6min.
A kind of 6. carbonization treatment method of wooden boards according to claim 1, which is characterized in that step（3）Described in
Plate and surface treatment liquid volume ratio be 1：5~7.
A kind of 7. carbonization treatment method of wooden boards according to claim 1, which is characterized in that step（3）Described in
While plate is put into immersion treatment in surface treatment liquid, also to plate apply frequency be 25 ~ 28kHz ultrasonic wave at
Reason.
A kind of 8. carbonization treatment method of wooden boards according to claim 1, which is characterized in that step（4）Described in
Carbonization treatment when carbide furnace in protective gas be nitrogen.
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| CN108393993B (en) * | 2018-02-11 | 2020-06-30 | 台州中知英健机械自动化有限公司 | Preparation method of carbonized wood board |
| CN108705637A (en) * | 2018-04-21 | 2018-10-26 | 阜南县大自然工艺品有限公司 | A kind of recoverying and utilizing method of the waste and old branch of wicker plaiting article |
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