CN108556099A - A kind of method of the drying of wood - Google Patents
A kind of method of the drying of wood Download PDFInfo
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- CN108556099A CN108556099A CN201810376696.6A CN201810376696A CN108556099A CN 108556099 A CN108556099 A CN 108556099A CN 201810376696 A CN201810376696 A CN 201810376696A CN 108556099 A CN108556099 A CN 108556099A
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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
- B27K3/52—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
- B27K5/007—Treating of wood not provided for in groups B27K1/00, B27K3/00 using pressure
- B27K5/0075—Vacuum
-
- 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
-
- 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
Landscapes
- 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 present invention relates to wood processing technique fields, and in particular to a kind of method of the drying of wood.The present invention first passes through high steam processs timber,So that the passage of water of wood internal is got through,Improve the ability that cellulose and hemicellulose in wood cell wall have adsorbed water molecule,Cellulose reticular structure in timber can be changed after high steam processs,Change pore size,The present invention is in order to further decrease cellulose in wood cell wall and hemicellulose to adsorbing the suction-operated of water,Moisture is set to be easier to migrate,It can be cured after the drying of antimildew and antibacterial liquid and form thin film in wood surface,The thermal degradation of lumber fibre is reduced while timber is dried,The utilization rate of timber after raising is dry,Polyhexamethylene guanidine hydrochloride adsorption layer of surface activating agent,Thus it can keep stable in lotion,Polyethylene wax is conducive to close to or passes through cell membrane,Timber is set to be not easy mouldy rot in wet condition,It has a extensive future.
Description
Technical field
The present invention relates to wood processing technique fields, and in particular to a kind of method of the drying of wood.
Background technology
With economic development and the improvement of people's living standards, requirement of the people to furniture quality is also higher and higher, no
Only focus on the practicality, while more stringent requirements are proposed to the environment protection health of product.Using conventional artificial's plank as each of base material
Kind of furniture, although meeting people’s lives needs whithin a period of time, because often there is environmental issue in it, gradual quilt
Natural wood products are replaced.
Timber is reproducible natural resources, and timber is porous material, can adjust the comfort of people's living environment,
The physical and mental health for being conducive to people, with the continuous improvement of living standards of the people, more and more residents are decorated using timber
Family, but due to lacking cognition to timber, especially timber knowledge is not known about, with the timber-work of undried processing or
With the wooden product of the undesirable set of wood producing of dry mass, many losses are brought to oneself or other people.
The drying of wood is a very important technique in timber process, is the weight for ensureing and improving wood quality
Want link.By being dried, the strong of stability, raising timber and the wooden parts that timber and woodwork use can be improved
Drop of degree, pre- prevention lumber etc. and weight that is rotten, reducing timber, seem particularly heavy in the case where the forest reserves are day by day short
It wants.
Method currently used for the drying of wood is various, and commonplace method is timber first to be carried out boiling, by trees
Internal myron is dissolved and is excluded, and timber is then carried out hot-air drying, is mostly the side using hot air evaporable water
Method is dried.But using the scheme of the routine, when being heated in being put into heating furnace, hot-air initially evaporates timber
Be wood surface moisture, and the moisture in the middle part of wood internal and timber can not quickly be evaporated, thus with
Lower disadvantage：Uneven drying is caused, when wood internal reaches drying effect, the surface of timber is by the excessive dry of hot-air
Dry, surface is susceptible to cracking, and one layer of timber for causing surface thicker can not use, and wastes material.When dry mass is not achieved
When technology under the conditions of domestic and international Different climate requires, easily cause product quality stability poor, cracking, deformation and paint
The unstable problem of adhesive force, particularly, if drying of wood link is untreated good, plank is susceptible in following process
The problems such as craze and transfiguration.
Therefore, there is an urgent need for inventing a kind of quality that can effectively ensure timber, avoid cracking, deformation of timber etc. existing
As, while energy conservation and environmental protection, drying efficiency is improved, the method for drying wood of time is shortened.
Invention content
Present invention mainly solves the technical issues of, for timber in the drying process when wood internal reaches drying effect
When, by the overdrying of hot-air, surface is susceptible to cracking for the surface of timber, and one layer of timber for causing surface thicker can not
It uses, wastes material, the timber after in addition drying is easy mouldy rotten defect under long-term wet environment, provides a kind of wood
The method of material drying.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of method of the drying of wood, it is characterised in that specifically preparation process is：
（1）Wood pieces are placed in pressurized tank, are heated after being passed through saturated vapor, are pressurizeed to pressurized tank with force (forcing) pump, heat preservation is protected
Pressure, obtains the timber of steam treatment, the timber of steam treatment is put into pressurized tank, will be vacuumized in tank body, when being kept for one section
Between；
（2）Triethylamine trihydrofluoride and ammonium hexafluorophosphate are mixed to get mixed liquor, mixed liquor is filled into above-mentioned pressurized tank, then will
Pressure rise in pressurized tank sealed shell of tank is discharged after being kept for a period of time after removal pressure and by remaining mixed liquor, then by tank
It vacuumizes in vivo, is kept for a period of time, removal pressure obtain swollen plank；
（3）Swollen plank is put into dry kiln, pressurize simultaneously low-temperature prewarming, then heats up, and aeration-drying obtains preliminarily dried timber；
（4）It counts in parts by weight, takes 50~60 parts of styrene, 20~25 parts of Isooctyl acrylate monomers and 30~40 parts of acrylic acid mixing
Mix monomer is obtained, 0.8~1.0 part of OP-10 and 1.2~1.6 part of sodium vinyl sulfonate is mixed to get pre-emulsification agent, will be mixed
Monomer, pre-emulsification agent and 70~80 parts of deionized waters are added in pre-emulsification kettle, start blender and stir to get pre-emulsion；
（5）It counts in parts by weight, the ammonium persulfate for being 20% by 80~90 parts of above-mentioned pre-emulsions, 20~30 parts of mass fractions
Solution, 20~30 parts of sodium bicarbonates are added in reaction kettles, heat temperature raising, start blender stirring, insulation reaction, then to reaction kettle
4~5 parts of lauryl amines of middle addition, 5~7 parts of chlorination glycidyltrimetiiylammonium amine, 20~25 parts of polyethylene waxes, 10~12 parts poly- six
Methylene guanidine hydrochloride continues to heat up, and heat preservation obtains antibacterial activity lotion, and alkyl ketene dimer and antibacterial activity lotion are mixed
It closes, obtains antimildew and antibacterial glue；
（6）Preliminarily dried timber pickling is handled in antimildew and antibacterial glue finally, obtains mildewproof wood, mildewproof wood is put again
Enter in throughcirculation dryer, is dried to obtain the timber of dry completion.
Step（1）The saturated vapor temperature after heating is 100~110 DEG C, and increased pressure is 1.5~2.0MPa,
The heat-insulation pressure keeping time be 2~3h, will be evacuated in tank body pressure be 0.05~0.10MPa, keep pressure time be 40~
50min。
Step（2）Described is 3 ︰ 1, pressurized tank hermetically sealed can by triethylamine trihydrofluoride and ammonium hexafluorophosphate mixing quality ratio
Internal pressure is 0.8~1.0MPa, and the retention time is 3~4h, and it is 0.06~0.15MPa that rear pressure is vacuumized in tank body, is kept
Time be 12~for 24 hours.
Step（3）The increased pressure is 1.0~1.2MPa, controlled at 40~45 DEG C when low-temperature prewarming, is protected
It is 1~2h to hold the time, and temperature is 45~48 DEG C after heating and to control relative air humidity be 50~55%, control pressure 0.5~
0.8MPa, aeration-drying time are 2~3 days.
Step（4）The speed of agitator is 300~400r/min, and mixing time is 25~30min.
Step（5）Temperature is 80~85 DEG C after the heat temperature raising, and speed of agitator is 60~70r/min, insulation reaction
Time is 30~40min, and temperature is 100~110 DEG C after continuing heating, and soaking time is 40~45min, alkyl ketene dimerization
Body is 5 ︰ 1 with antibacterial activity lotion mixing quality ratio.
Step（6）The impregnation time is 4~5h, and it is 48~52 DEG C that drying temperature is controlled in throughcirculation dryer,
Control pressure is 0.4~0.8MPa, and drying time is 10~12h.
The beneficial effects of the invention are as follows：
（1）The present invention first passes through high steam processs timber so that the passage of water of wood internal is got through, and wood cell is improved
Cellulose in wall and hemicellulose, make it have the ability of adsorbed water molecule, cellulose molecular chain in cellulose noncrystalline domain
On hydroxyl, some forms hydrogen bond, and another part be in free state, and free hydroxyl is polar group, is easy to adsorb
Hydrone and form Hydrogenbond, the size of cellulose moisture sorption ability depends on the ratio shared by noncrystalline domain, noncrystalline domain institute
Accounting example is bigger, and wettability power is stronger, because hemicellulose cannot form crystal region, and hydrone is easily accessible, so half fiber
Water imbibition and the swollen degree for tieing up element are higher than cellulose, and after high steam processs, noncrystalline domain proportion accordingly reduces,
The adsorption capacity of hydrone also can accordingly be reduced, while in being in staggeredly netted, centre has for cellulose and hemicellulose in timber
Many gaps, these gaps can contain moisture, can change cellulose reticular structure in timber after high steam processs,
Change pore size, make its internal absorption water migration, the present invention is in order to further decrease the cellulose in wood cell wall and half
Cellulose makes moisture be easier to migrate, utilizes the mixed of triethylamine trihydrofluoride and ammonium hexafluorophosphate to adsorbing the suction-operated of water
Close solution impregnation has been carried out to timber, due to ionized in the mixed solution of triethylamine trihydrofluoride and ammonium hexafluorophosphate from
Son can penetrate amorphous region, reach crystal region outer surface, and by destroying the Hydrogenbond between water and cellulose, fiber occurs
Swollen in plain amorphous region is conducive to further permeate, the electricity of fluorine atom in triethylamine trihydrofluoride and ammonium hexafluorophosphate
Negativity is big, and radius is again small, can form more stable hydrogen bond with hydroxyl on cellulose, to adsorb moisture on cellulose
Son substitutes, and reduces absorption of the hydroxyl to hydrone on cellulose, and hydrone is made to be easier to move from wood internal to outside
Move, drying process thus carry out from inside to outside, reduce wood surface overdrying there is the situation being cracked；
（2）It can be cured after antimildew and antibacterial liquid drying of the present invention and form thin film in wood surface, play the poly- second of hydrophobic effect
Alkene wax can liquefy at once and a part of volatilizing, and absorbs huge heat, and lumber fibre is reduced while timber is dried
Thermal degradation improves the utilization rate of timber after drying, and antibacterial activity lotion, which dilutes several times, still has fungistatic effect, this bactericidal effect
Essentially from polyhexamethylene guanidine hydrochloride, when preparing antibacterial activity lotion, polyhexamethylene guanidine hydrochloride is grafted to polyethylene wax
On, the antibacterial effect that can not only be brought into normal play, and water will not be dissolved in and be lost in, also it is not easy to ooze out, polyhexamethylene hydrochloric acid
Guanidine adsorption layer of surface activating agent, thus can keep stable in lotion, during the drying of wood, live to antibacterial
Property lotion for, wherein embedded in the graft product particle of polyhexamethylene guanidine hydrochloride and polyethylene wax many such as vinyl sulphurs
The cationic surfactants such as sour sodium, when emulsion concentration is diluted, these surfactants are still in graft product particle, part
Positive charge is exposed in graft product particle surface, makes have more graft product granular absorptions to electronegative fiber in lotion
On, graft product particle is adsorbed in the cell of negatively charged group by positively charged quaternary ammonium salt structure as cationic germicide
Film surface, destroying cell membrane causes cytoplasm to be revealed, and the hydrophobic structure of polyethylene wax is conducive to close or passes through in fungicide
Cell membrane enhances the bactericidal effect of Fungicidal substance, and mouldy rotten to make timber be not easy in wet condition, application prospect is wide
It is wealthy.
Specific implementation mode
Wood pieces are placed in pressurized tank, 100~110 DEG C are heated to after being passed through saturated vapor, with force (forcing) pump to pressure
Tank is forced into 1.5~2.0MPa, and 2~3h of heat-insulation pressure keeping obtains the timber of steam treatment, and the timber of steam treatment is put into pressure
In tank, it is 0.05~0.10MPa that pressure will be evacuated in tank body, keeps 40~50min；By triethylamine trihydrofluoride and hexafluoro
Ammonium phosphate is that 3 ︰ 1 are mixed to get mixed liquor in mass ratio, mixed liquor is filled above-mentioned pressurized tank, then will be in pressurized tank sealed shell of tank
Pressure rises to 0.8~1.0MPa, keeps 3~4h, is discharged after removal pressure and by remaining mixed liquor, then will be vacuumized in tank body
To 0.06~0.15MPa, keep 12~for 24 hours, removal pressure obtains swollen plank；Swollen plank is put into dry kiln, is pressurizeed
To 1.0~1.2MPa, low-temperature prewarming keeps 1~2h controlled at 40~45 DEG C, is warming up to 45~48 DEG C, controls air phase
It is 50~55% to humidity, pressure is 0.5~0.8MPa, and aeration-drying 2~3 days obtains preliminarily dried timber；In parts by weight
Meter, takes 50~60 parts of styrene, 20~25 parts of Isooctyl acrylate monomers and 30~40 parts of acrylic acid to be mixed to get mix monomer, will
0.8~1.0 part of OP-10 and 1.2~1.6 part of sodium vinyl sulfonate is mixed to get pre-emulsification agent, by mix monomer, pre-emulsification agent and
70~80 parts of deionized waters are added in pre-emulsification kettle, start blender, and 25~30min is stirred with the rotating speed of 300~400r/min,
Obtain pre-emulsion；It counts in parts by weight, the mistake for being 20% by 80~90 parts of above-mentioned pre-emulsions, 20~30 parts of mass fractions
Ammonium sulfate, 20~30 parts of sodium bicarbonates are added in reaction kettles, are heated to 80~85 DEG C, start blender, with 60~
The rotating speed of 70r/min stirs, 30~40min of insulation reaction, then 4~5 parts of lauryl amines, 5~7 parts of chlorination contractings are added into reaction kettle
Water glyceryl Trimethylamine, 20~25 parts of polyethylene waxes, 10~12 parts of polyhexamethylene guanidine hydrochlorides, are continuously heating to 100~110
DEG C, 40~45min is kept the temperature, antibacterial activity lotion is obtained, is 5 ︰ 1 in mass ratio by alkyl ketene dimer and antibacterial activity lotion
Mixing, obtains antimildew and antibacterial glue；Preliminarily dried timber pickling is finally handled to 4~5h in antimildew and antibacterial glue, is prevented
Mould timber, mildewproof wood is placed into throughcirculation dryer, control drying temperature be 48~52 DEG C, control pressure be 0.4~
0.8MPa, dry 10~12h obtain the timber of dry completion.
Example 1
Wood pieces are placed in pressurized tank, 100 DEG C are heated to after being passed through saturated vapor, pressurized tank is forced into force (forcing) pump
1.5MPa, heat-insulation pressure keeping 2h obtain the timber of steam treatment, and the timber of steam treatment is put into pressurized tank, will be taken out in tank body
Vacuum to pressure is 0.05MPa, keeps 40min；It is that 3 ︰ 1 are mixed in mass ratio by triethylamine trihydrofluoride and ammonium hexafluorophosphate
To mixed liquor, mixed liquor is filled into above-mentioned pressurized tank, then pressure in pressurized tank sealed shell of tank is risen into 0.8MPa, keep 3h, unload
Except being discharged after pressure and by remaining mixed liquor, then it will be evacuated to 0.06MPa in tank body, 12h, removal pressure is kept to obtain
Swollen plank；Swollen plank is put into dry kiln, 1.0MPa is forced into, low-temperature prewarming keeps 1h controlled at 40 DEG C,
45 DEG C are warming up to, control relative air humidity is 50%, and pressure 0.5MPa, aeration-drying 2 days obtains preliminarily dried timber；It presses
Parts by weight meter takes 50 parts of styrene, 20 parts of Isooctyl acrylate monomers and 30 parts of acrylic acid to be mixed to get mix monomer, by 0.8 part
OP-10 and 1.2 part of sodium vinyl sulfonate is mixed to get pre-emulsification agent, and mix monomer, pre-emulsification agent and 70 parts of deionized waters are added
Enter in pre-emulsification kettle, start blender, 25min is stirred with the rotating speed of 300r/min, obtains pre-emulsion；It counts in parts by weight,
Ammonium persulfate solution, 20 parts of sodium bicarbonates addition reaction kettles by 80 parts of above-mentioned pre-emulsions, 20 parts of mass fractions for 20%
In, 80 DEG C are heated to, blender is started, is stirred with the rotating speed of 60r/min, insulation reaction 30min, then is added into reaction kettle
Enter 4 parts of lauryl amines, 5 parts of chlorination glycidyltrimetiiylammonium amine, 20 parts of polyethylene waxes, 10 parts of polyhexamethylene guanidine hydrochlorides, continues
100 DEG C are warming up to, 40min is kept the temperature, obtains antibacterial activity lotion, in mass ratio with antibacterial activity lotion by alkyl ketene dimer
It is mixed for 5 ︰ 1, obtains antimildew and antibacterial glue；Preliminarily dried timber pickling is finally handled into 4h in antimildew and antibacterial glue, is obtained
Mildewproof wood places into mildewproof wood in throughcirculation dryer, and control drying temperature is 48 DEG C, control pressure 0.4MPa, is done
Dry 10h obtains the timber of dry completion.
Example 2
Wood pieces are placed in pressurized tank, 105 DEG C are heated to after being passed through saturated vapor, pressurized tank is forced into force (forcing) pump
1.7MPa, heat-insulation pressure keeping 2.5h obtain the timber of steam treatment, and the timber of steam treatment is put into pressurized tank, will be in tank body
It is 0.07MPa to be evacuated to pressure, keeps 45min；It is that 3 ︰ 1 are mixed in mass ratio by triethylamine trihydrofluoride and ammonium hexafluorophosphate
Mixed liquor is obtained, mixed liquor above-mentioned pressurized tank is filled into, then pressure in pressurized tank sealed shell of tank is risen into 0.9MPa, keeps 4h,
It is discharged after removal pressure and by remaining mixed liquor, then 0.09MPa will be evacuated in tank body, 17h, removal pressure is kept to obtain
To swollen plank；Swollen plank is put into dry kiln, 1.1MPa is forced into, low-temperature prewarming keeps controlled at 43 DEG C
1.5h is warming up to 47 DEG C, and control relative air humidity is 53%, and pressure 0.7MPa, aeration-drying 2.5 days obtains preliminarily dried
Timber；It counts in parts by weight, 55 parts of styrene, 23 parts of Isooctyl acrylate monomers and 35 parts of acrylic acid is taken to be mixed to get mix monomer,
0.9 part of OP-10 and 1.4 part of sodium vinyl sulfonate is mixed to get pre-emulsification agent, by mix monomer, pre-emulsification agent and 75 parts go from
Sub- water is added in pre-emulsification kettle, starts blender, stirs 28min with the rotating speed of 350r/min, obtains pre-emulsion；By weight
Number meter 85 parts of above-mentioned pre-emulsions, the ammonium persulfate solution that 25 parts of mass fractions are 20%, 25 parts of sodium bicarbonates is added anti-
It answers in kettle, is heated to 83 DEG C, start blender, stirred with the rotating speed of 65r/min, insulation reaction 35min, then to reaction kettle
4 parts of lauryl amines of middle addition, 6 parts of chlorination glycidyltrimetiiylammonium amine, 23 parts of polyethylene waxes, 11 parts of polyhexamethylene guanidine hydrochlorides,
105 DEG C are continuously heating to, 43min is kept the temperature, obtains antibacterial activity lotion, alkyl ketene dimer and antibacterial activity lotion are pressed into matter
Amount obtains antimildew and antibacterial glue than being that 5 ︰ 1 are mixed；Finally preliminarily dried timber pickling is handled in antimildew and antibacterial glue
4.5h obtains mildewproof wood, and mildewproof wood is placed into throughcirculation dryer, and control drying temperature is 50 DEG C, and control pressure is
0.6MPa, dry 11h obtain the timber of dry completion.
Example 3
Wood pieces are placed in pressurized tank, 110 DEG C are heated to after being passed through saturated vapor, pressurized tank is forced into force (forcing) pump
2.0MPa, heat-insulation pressure keeping 3h obtain the timber of steam treatment, and the timber of steam treatment is put into pressurized tank, will be taken out in tank body
Vacuum to pressure is 0.10MPa, keeps 50min；It is that 3 ︰ 1 are mixed in mass ratio by triethylamine trihydrofluoride and ammonium hexafluorophosphate
To mixed liquor, mixed liquor is filled into above-mentioned pressurized tank, then pressure in pressurized tank sealed shell of tank is risen into 1.0MPa, keep 4h, unload
Except being discharged after pressure and by remaining mixed liquor, then it will be evacuated to 0.15MPa in tank body, keeps for 24 hours, removal pressure obtains
Swollen plank；Swollen plank is put into dry kiln, 1.2MPa is forced into, low-temperature prewarming keeps 2h controlled at 45 DEG C,
48 DEG C are warming up to, control relative air humidity is 55%, and pressure 0.8MPa, aeration-drying 3 days obtains preliminarily dried timber；It presses
Parts by weight meter takes 60 parts of styrene, 25 parts of Isooctyl acrylate monomers and 40 parts of acrylic acid to be mixed to get mix monomer, by 1.0 parts
OP-10 and 1.6 part of sodium vinyl sulfonate is mixed to get pre-emulsification agent, and mix monomer, pre-emulsification agent and 80 parts of deionized waters are added
Enter in pre-emulsification kettle, start blender, 30min is stirred with the rotating speed of 400r/min, obtains pre-emulsion；It counts in parts by weight,
Ammonium persulfate solution, 30 parts of sodium bicarbonates addition reaction kettles by 90 parts of above-mentioned pre-emulsions, 30 parts of mass fractions for 20%
In, 85 DEG C are heated to, blender is started, is stirred with the rotating speed of 70r/min, insulation reaction 40min, then is added into reaction kettle
Enter 5 parts of lauryl amines, 7 parts of chlorination glycidyltrimetiiylammonium amine, 25 parts of polyethylene waxes, 12 parts of polyhexamethylene guanidine hydrochlorides, continues
110 DEG C are warming up to, 45min is kept the temperature, obtains antibacterial activity lotion, in mass ratio with antibacterial activity lotion by alkyl ketene dimer
It is mixed for 5 ︰ 1, obtains antimildew and antibacterial glue；Preliminarily dried timber pickling is finally handled into 5h in antimildew and antibacterial glue, is obtained
Mildewproof wood places into mildewproof wood in throughcirculation dryer, and control drying temperature is 52 DEG C, control pressure 0.8MPa, is done
Dry 12h obtains the timber of dry completion.
Comparative example
As a comparison case with the method for drying wood of Changsha company invention
Timber is handled and detected using the method for drying wood of the present invention and the method for drying wood of comparative example, detection knot
Fruit is as shown in table 1：
Fungicidal properties is tested
A piece never processed timber is divided into 4 sections, utilizes the timber of the method for drying wood and comparative example of the present invention
Above-mentioned four sections of timber is dried in drying means, spare as test sample.It observes and is become after test sample is connect bacterium 90 days
Color bacterium infect after mouldy degree.
1 performance measurement result of table
From the data in table 1, it can be seen that the timber being dried using the application method for drying wood, has intensity height, anti-mildew effect
The advantages that good, cracking rate is low and distortion free, can efficiently use timber, ensure furniture quality.Therefore, have wide
Prospect of the application.
Claims (7)
1. a kind of method of the drying of wood, it is characterised in that specifically preparation process is：
（1）Wood pieces are placed in pressurized tank, are heated after being passed through saturated vapor, are pressurizeed to pressurized tank with force (forcing) pump, heat preservation is protected
Pressure, obtains the timber of steam treatment, the timber of steam treatment is put into pressurized tank, will be vacuumized in tank body, when being kept for one section
Between；
（2）Triethylamine trihydrofluoride and ammonium hexafluorophosphate are mixed to get mixed liquor, mixed liquor is filled into above-mentioned pressurized tank, then will
Pressure rise in pressurized tank sealed shell of tank is discharged after being kept for a period of time after removal pressure and by remaining mixed liquor, then by tank
It vacuumizes in vivo, is kept for a period of time, removal pressure obtain swollen plank；
（3）Swollen plank is put into dry kiln, pressurize simultaneously low-temperature prewarming, then heats up, and aeration-drying obtains preliminarily dried timber；
（4）It counts in parts by weight, takes 50~60 parts of styrene, 20~25 parts of Isooctyl acrylate monomers and 30~40 parts of acrylic acid mixing
Mix monomer is obtained, 0.8~1.0 part of OP-10 and 1.2~1.6 part of sodium vinyl sulfonate is mixed to get pre-emulsification agent, will be mixed
Monomer, pre-emulsification agent and 70~80 parts of deionized waters are added in pre-emulsification kettle, start blender and stir to get pre-emulsion；
（5）It counts in parts by weight, the ammonium persulfate for being 20% by 80~90 parts of above-mentioned pre-emulsions, 20~30 parts of mass fractions
Solution, 20~30 parts of sodium bicarbonates are added in reaction kettles, heat temperature raising, start blender stirring, insulation reaction, then to reaction kettle
4~5 parts of lauryl amines of middle addition, 5~7 parts of chlorination glycidyltrimetiiylammonium amine, 20~25 parts of polyethylene waxes, 10~12 parts poly- six
Methylene guanidine hydrochloride continues to heat up, and heat preservation obtains antibacterial activity lotion, and alkyl ketene dimer and antibacterial activity lotion are mixed
It closes, obtains antimildew and antibacterial glue；
（6）Preliminarily dried timber pickling is handled in antimildew and antibacterial glue finally, obtains mildewproof wood, mildewproof wood is put again
Enter in throughcirculation dryer, is dried to obtain the timber of dry completion.
2. a kind of method of drying of wood according to claim 1, it is characterised in that：Step（1）The saturated vapor
Temperature after heating is 100~110 DEG C, and increased pressure is 1.5~2.0MPa, and the heat-insulation pressure keeping time is 2~3h, will be taken out in tank body
Vacuum to pressure is 0.05~0.10MPa, and holding pressure time is 40~50min.
3. a kind of method of drying of wood according to claim 1, it is characterised in that：Step（2）It is described by triethylamine
Trihydrofluoride and ammonium hexafluorophosphate mixing quality ratio are 3 ︰ 1, and pressure is 0.8~1.0MPa in pressurized tank sealed shell of tank, when holding
Between be 3~4h, it is 0.06~0.15MPa that rear pressure is vacuumized in tank body, and the retention time is 12~for 24 hours.
4. a kind of method of drying of wood according to claim 1, it is characterised in that：Step（3）It is pressed after the pressurization
Power is 1.0~1.2MPa, and controlled at 40~45 DEG C when low-temperature prewarming, the retention time is 1~2h, after heating temperature be 45~
48 DEG C and to control relative air humidity be 50~55%, for control pressure in 0.5~0.8MPa, the aeration-drying time is 2~3 days.
5. a kind of method of drying of wood according to claim 1, it is characterised in that：Step（4）The speed of agitator
For 300~400r/min, mixing time is 25~30min.
6. a kind of method of drying of wood according to claim 1, it is characterised in that：Step（5）The heat temperature raising
Temperature is 80~85 DEG C afterwards, and speed of agitator is 60~70r/min, and the insulation reaction time is 30~40min, continues temperature after heating
It it is 100~110 DEG C, soaking time is 40~45min, and alkyl ketene dimer is 5 ︰ with antibacterial activity lotion mixing quality ratio
1。
7. a kind of method of drying of wood according to claim 1, it is characterised in that：Step（6）The impregnation
Time is 4~5h, and it is 48~52 DEG C that drying temperature is controlled in throughcirculation dryer, and control pressure is 0.4~0.8MPa, drying time
For 10~12h.
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| CN201810376696.6A CN108556099A (en) | 2018-04-25 | 2018-04-25 | A kind of method of the drying of wood |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693289A (en) * | 2019-01-22 | 2019-04-30 | 常州双元职业技能培训中心 | A kind of preparation method of mildew preventing agent for wood |
| CN110116443A (en) * | 2019-04-30 | 2019-08-13 | 涂保华 | A kind of preparation method of insect prevention sustained release timber preservative |
-
2018
- 2018-04-25 CN CN201810376696.6A patent/CN108556099A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693289A (en) * | 2019-01-22 | 2019-04-30 | 常州双元职业技能培训中心 | A kind of preparation method of mildew preventing agent for wood |
| CN110116443A (en) * | 2019-04-30 | 2019-08-13 | 涂保华 | A kind of preparation method of insect prevention sustained release timber preservative |
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