CN106182249A - A kind of preparation method of the crack resistence high-intensity wood that sterilizes - Google Patents
A kind of preparation method of the crack resistence high-intensity wood that sterilizes Download PDFInfo
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- CN106182249A CN106182249A CN201610547368.9A CN201610547368A CN106182249A CN 106182249 A CN106182249 A CN 106182249A CN 201610547368 A CN201610547368 A CN 201610547368A CN 106182249 A CN106182249 A CN 106182249A
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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
- B27K1/00—Damping wood
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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
- B27K3/007—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
- B27K3/02—Processes; Apparatus
- B27K3/12—Impregnating by coating the surface of the wood with an impregnating paste
-
- 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
- B27K5/001—Heating
-
- 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
- B27K5/04—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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses the preparation method of a kind of crack resistence high-intensity wood that sterilizes, belong to timber field.The present invention chooses timber and puts into after decocting in water and carry out explosion treatment in pressurized tank, drying control moisture content after process, timber is immersed in Wooden modifying liquid, Wooden modifying liquid is the concentration and allyl glycidyl ether extracted by Bulbus Lilii leaf and leached tea oil slag, dimethyl acetylamide, diethylene glycol, sodium hydroxide, diammonium phosphate, the materials such as SAN-619F are prepared from, after soaking, timber takes out and is dried, and at the modified nano silicon dioxide sol of wood surface even application hexadecyl trimethoxy silane, it is dried after spraying, the present invention prepares to obtain Wood mechanical property and good stability of the dimension, there is the fungus and mildew resistance performance of excellence, moisture-resisting is swollen, and coefficient is high, life-time service will not produce cracking, the phenomenon of warpage, and it is prepared into Wooden modifying liquid safety and environmental protection, formaldehydeless release.
Description
Technical field
The invention discloses the preparation method of a kind of crack resistence high-intensity wood that sterilizes, belong to timber field.
Background technology
Timber has been widely used, because it has plurality of advantages, such as ratio of strength to weight height, good springiness, resistance to punching
Hit, texture rich palette is attractive in appearance.But meanwhile, timber there is also many weak points during using,
The anisotropy of such as drying shrinkage bulking, the most rotten and worm Serpentis, easy firing etc., which greatly limits the use of timber
On the way.And Wooden modifying is just intended to improve or change the physics of timber, chemistry, mechanical property and structural feature physically or chemically
Processing and treating method.Its purpose is exactly to improve the natural decay resistance of timber, acid resistance, alkali resistance, anti-flammability, mechanical property and chi
Very little stability.The means and methods of Wooden modifying is different, and technique is different, and the performance of obtained modified material also varies.Owing to being permitted
The characteristic of many timber is by internal chemical structures shape, so a lot of method of modifying is that change wood chemistry is bonded to obtain
Preferably process based prediction model, this type of method is referred to as chemical modification.
Timber is because of the constituent of its uniqueness and the cellular structures that has and hygroscopic cause dilatancy, legibility water
Causing cracking warpage, easily corroded by mycete and cause rotten degraded, Yi Shouhuo, marquis affect cause light thermal degradation etc. but these methods or modification
Agent toxicity is high, have specific peculiar smell, anti-current to lose ability, environment is polluted greatly in VOC release, operating process is complicated, cost is high, or
The original position bad dispersibility of nano-particle causes super-hydrophobic less effective, or can only improve the single performance of timber, timber pit
Generally deposited and formed the reasons such as the pit membrane that crusts completely, poor permeability by amorphous substance.
Summary of the invention
The technical problem that present invention mainly solves: for timber because of the constituent of its uniqueness and have cellular porous
Structure and hygroscopic cause dilatancy, legibility water causes cracking warpage, and mechanical property and poor dimensional stability, generally by amorphous substance
The reasons such as the pit membrane that matter deposition and formation are crusted completely, the problem of poor permeability, one of the present invention sterilization crack resistence high intensity
The preparation method of timber, the present invention chooses timber and puts into after decocting in water and carry out explosion treatment in pressurized tank, is dried control after process
Moisture content processed, is immersed in timber in Wooden modifying liquid, and Wooden modifying liquid is the concentration and alkene extracted by Bulbus Lilii leaf and leached tea oil slag
Propyl glycidyl ether, dimethyl acetylamide, diethylene glycol, the preparation of the material such as sodium hydroxide, diammonium phosphate, SAN-619F and
Becoming, after soaking, timber takes out and is dried, and in the modified nanometer of wood surface even application hexadecyl trimethoxy silane
Silicon dioxide gel, is dried after spraying, and the present invention prepares to obtain Wood mechanical property and good stability of the dimension, has excellent
Different fungus and mildew resistance performance, moisture-resisting is swollen, and coefficient is high, and life-time service will not produce the phenomenon of cracking, warpage, and be prepared into timber
Modification liquid safety and environmental protection, formaldehydeless release.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
(1) weigh 50～70g Bulbus Lilii leafs and 100～150g leached tea oil slags respectively, pulverize after drying, sieve to obtain 50～60 mesh Bulbus Lilii leafs
Powder and 50～60 mesh leached tea oil slag powder, stir after being mixed by powder, and divided with quality by solid-to-liquid ratio 1:8 by mixed-powder
Several 10% ammonia mixing, sucking filtration after soaking 8～10h, obtain filtering residue；
(2) by above-mentioned filtering residue lyophilization, dried object is mixed with propane by solid-to-liquid ratio 1:5, is facing with supercritical carbon dioxide
Boundary's pressure be 4.2～4.5Mpa and critical temperature be 96～98 DEG C under conditions of extract 30～40min, extraction after terminating centrifugal point
From obtaining supernatant, after supernatant rotary evaporation is removed propane solvent, obtain concentrated solution, standby；
(3) in the there-necked flask of 500mL, it is separately added into 3～5g nano silica microspheres, 120～150mL mass fraction 95%
Ethanol solution, ultrasonic disperse 5～15min obtains dispersion liquid, drips 3～5mL hexadecyl trimethoxy silane in flask, and will
Flask is put in water-bath, and stirring reaction 2～3h under the conditions of 60～80 DEG C, after reaction, centrifugation obtains precipitate, uses toluene
Rinse 3～5 final vacuums to be dried, obtain modified manometer silicon dioxide powder body, by after solid-to-liquid ratio 1:5 and Polyethylene Glycol mixing ultrasonic point
Dissipate 10～15min, obtain modified manometer silicon dioxide colloidal sol, standby；
(4) count by weight, choose respectively 25～30 parts of allyl glycidyl ethers, 30～35 parts of dimethyl acetylamide, 20
～the standby concentrated solution of 25 parts of steps (2), 15～20 portions of diethylene glycol, 5～10 parts of sodium hydroxide, 15～20 parts of diammonium phosphate, 2
～3 parts of SAN-619F, 8～12 parts of DDAC and 1～3 part of azodiisobutyronitrile, under the conditions of 60～80 DEG C
Stirring reaction 2～3h, after reaction, discharging obtains Wooden modifying liquid, standby；
(5) choose timber and put in temperature and humidity regulator, heat at decocting in water under the conditions of relative humidity 100% and temperature 80～90 DEG C
Reason 3～5h, puts in pressurized tank by the timber after decocting in water, in the condition that pressure is 1.2～2.5MPa and temperature is 80～90 DEG C
Under carry out explosion treatment, after pressure reaches designated value, open rapidly pressure-relief valve, release, until normal pressure, is boosted the most again, so
Taking out timber after repeated multiple times explosion treatment 20～30 times, the moisture content being dried in 60～100 DEG C of baking ovens to timber is 20
～30%；
(6) by above-mentioned dried timber pickling in the Wooden modifying liquid that step (4) is standby, take out after soaking 20～40min
And under the conditions of temperature 90～105 DEG C oven drying 3～5h, standby one layer of step (3) of wood surface even application after drying
Modified manometer silicon dioxide colloidal sol, spray next layer after naturally drying 1～3min again, repeat to spray 4～6 times, after spraying
It is dried under the conditions of 120～140 DEG C 3～5 days, i.e. can obtain the crack resistence high-intensity wood that sterilizes.
What the present invention prepared wood preservation anti-microbial property reaches more than 92%, and anticorrosion grade reaches corrosion resistant level, timber
Radial direction and the swollen coefficient of tangential moisture-resisting respectively reach more than 40%, more than 50%, radially inhale bulking factor less than 1.1%；Tangential
Inhaling bulking factor and be less than 1.2%, wood modulus of elasticity is 6.8～7.5Gpa, and bending strength is 85.6～90.3Mpa, resistance to compression
Intensity is 45.8～50.2Mpa, and case hardness is 2530～2810N, and impact flexibility is 26.8～30.2KJ/m2。
The invention has the beneficial effects as follows:
(1) present invention prepares to obtain Wood mechanical property and good stability of the dimension；
(2) timber that the present invention is modified has the fungus and mildew resistance performance of excellence, and anti-corrosive antibacterial performance reaches more than 92%；
(3) timber that the present invention is modified is the most hygroscopic, and moisture-resisting is swollen, and coefficient is more than 40%, will not produce after using 30 years cracking,
The phenomenon of warpage；
(4) present invention is prepared into Wooden modifying liquid safety and environmental protection, formaldehydeless release.
Detailed description of the invention
Weigh 50～70g Bulbus Lilii leafs and 100～150g leached tea oil slags the most respectively, pulverize after drying, sieve to obtain 50～60 mesh
Bulbus Lilii leaf powder and 50～60 mesh leached tea oil slag powder, by powder mix after stir, and by mixed-powder by solid-to-liquid ratio 1:8 with
Mass fraction 10% ammonia mixes, sucking filtration after soaking 8～10h, obtains filtering residue；By above-mentioned filtering residue lyophilization, dried object is pressed solid-liquid
Mix with propane than 1:5, be 4.2～4.5Mpa and critical temperature is 96～98 DEG C with supercritical carbon dioxide in critical pressure
Under the conditions of extract 30～40min, extraction terminates rear centrifugation and obtains supernatant, after supernatant rotary evaporation is removed propane solvent
Obtain concentrated solution, standby；3～5g nano silica microspheres, 120～150mL mass it is separately added in the there-necked flask of 500mL
Mark 95% ethanol solution, ultrasonic disperse 5～15min obtains dispersion liquid, drips 3～5mL hexadecyl trimethoxy silicon in flask
Alkane, and flask is put in water-bath, stirring reaction 2～3h under the conditions of 60～80 DEG C, after reaction, centrifugation obtains precipitate,
It is dried with toluene rinse 3～5 final vacuums, obtains modified manometer silicon dioxide powder body, after mixing by solid-to-liquid ratio 1:5 and Polyethylene Glycol
Ultrasonic disperse 10～15min, obtains modified manometer silicon dioxide colloidal sol, standby；Count by weight, choose 25～30 parts of alkene respectively
Propyl glycidyl ether, 30～35 parts of dimethyl acetylamide, 20～25 parts of standby concentrated solutions, 15～20 portions of diethylene glycol, 5～10
Part sodium hydroxide, 15～20 parts of diammonium phosphate, 2～3 parts of SAN-619F, 8～12 parts of DDAC and 1～3
Part azodiisobutyronitrile, stirring reaction 2～3h under the conditions of 60～80 DEG C, after reaction, discharging obtains Wooden modifying liquid, standby；Choose
Timber is put in temperature and humidity regulator, heats decocting in water and process 3～5h, by water under the conditions of relative humidity 100% and temperature 80～90 DEG C
Timber after boiling is put in pressurized tank, carries out at explosion under conditions of pressure is 1.2～2.5MPa and temperature is 80～90 DEG C
Reason, after pressure reaches designated value, opens rapidly pressure-relief valve, and release, until normal pressure, is boosted the most again, such repeated multiple times explosion
Taking out timber after processing 20～30 times, the moisture content being dried in 60～100 DEG C of baking ovens to timber is 20～30%；By above-mentioned
Dried timber pickling, in standby Wooden modifying liquid, is taken out and in temperature 90～105 DEG C of conditions after soaking 20～40min
Lower oven drying 3～5h, after drying at the modified manometer silicon dioxide colloidal sol that wood surface even application one layer is standby, dries in the air naturally
Spray next layer again after dry 1～3min, repeat to spray 4～6 times, under the conditions of 120～140 DEG C, after spraying, be dried 3～5 days, i.e.
The crack resistence high-intensity wood that sterilizes can be obtained.
Example 1
Weigh 50g Bulbus Lilii leaf and 100g leached tea oil slag the most respectively, pulverize after drying, sieve to obtain 50 mesh Bulbus Lilii leaf powder and 50 mesh tea
Seed dregs of rice powder, stirs after being mixed by powder, and is mixed with mass fraction 10% ammonia by solid-to-liquid ratio 1:8 by mixed-powder, leaching
Sucking filtration after bubble 8h, obtains filtering residue；By above-mentioned filtering residue lyophilization, dried object is mixed with propane, with supercritical two by solid-to-liquid ratio 1:5
Carbonoxide extracts 30min under conditions of critical pressure is 4.2Mpa and critical temperature is 96 DEG C, and extraction terminates rear centrifugation
Obtain supernatant, after supernatant rotary evaporation is removed propane solvent, obtain concentrated solution, standby；In the there-necked flask of 500mL respectively
Adding 3g nano silica microsphere, 120mL mass fraction 95% ethanol solution, ultrasonic disperse 5min obtains dispersion liquid, in flask
Dropping 3mL hexadecyl trimethoxy silane, and flask is put in water-bath, stirring reaction 2h, reaction under the conditions of 60 DEG C
Rear centrifugation obtains precipitate, is dried with 3 final vacuums of toluene rinse, obtains modified manometer silicon dioxide powder body, by solid-to-liquid ratio 1:5
Ultrasonic disperse 10min after mixing with Polyethylene Glycol, obtains modified manometer silicon dioxide colloidal sol, standby；Count by weight, select respectively
Take 25 parts of allyl glycidyl ethers, 30 parts of dimethyl acetylamide, 20 parts of standby concentrated solutions, 15 parts of diethylene glycol, 5 parts of hydroxides
Sodium, 15 parts of diammonium phosphate, 2 parts of SAN-619F, 8 parts of DDAC and 1 part of azodiisobutyronitrile, at 60 DEG C of bars
Stirring reaction 2h under part, after reaction, discharging obtains Wooden modifying liquid, standby；Choose timber and put in temperature and humidity regulator, the wettest
Heat decocting in water under the conditions of degree 100% and temperature 80 DEG C and process 3h, the timber after decocting in water is put in pressurized tank, at pressure is
1.2MPa and temperature carry out explosion treatment under conditions of being 80 DEG C, after pressure reaches designated value, open rapidly pressure-relief valve, release
Until normal pressure, boost the most again, take out timber after such repeated multiple times explosion treatment 20 times, be dried to timber in 60 DEG C of baking ovens
In moisture content be 20%；By above-mentioned dried timber pickling in standby Wooden modifying liquid, take out also after soaking 20min
Oven drying 3h under the conditions of temperature 90 DEG C, after drying at one layer of standby modified manometer silicon dioxide of wood surface even application
Colloidal sol, sprays next layer again after naturally drying 1min, repeat to spray 4 times, is dried 3 days after spraying under the conditions of 120 DEG C,
To sterilization crack resistence high-intensity wood.
What the present invention prepared wood preservation anti-microbial property reaches 92.5%；Anticorrosion grade reaches corrosion resistant level；Timber
Radially respectively reach 42%, 52% with the tangential swollen coefficient of moisture-resisting, radially inhale bulking factor 1.05%, tangential suction bulking factor 1.1%；
Wood modulus of elasticity is 6.8Gpa, and bending strength is 85.6Mpa, and comprcssive strength is 45.8Mpa, and case hardness is 2530N,
Impact flexibility is 26.8KJ/m2。
Example 2
Weigh 60g Bulbus Lilii leaf and 125g leached tea oil slag the most respectively, pulverize after drying, sieve to obtain 55 mesh Bulbus Lilii leaf powder and 55 mesh tea
Seed dregs of rice powder, stirs after being mixed by powder, and is mixed with mass fraction 10% ammonia by solid-to-liquid ratio 1:8 by mixed-powder, leaching
Sucking filtration after bubble 9h, obtains filtering residue；By above-mentioned filtering residue lyophilization, dried object is mixed with propane, with supercritical two by solid-to-liquid ratio 1:5
Carbonoxide extracts 35min under conditions of critical pressure is 4.3Mpa and critical temperature is 97 DEG C, and extraction terminates rear centrifugation
Obtain supernatant, after supernatant rotary evaporation is removed propane solvent, obtain concentrated solution, standby；In the there-necked flask of 500mL respectively
Adding 4g nano silica microsphere, 135mL mass fraction 95% ethanol solution, ultrasonic disperse 10min obtains dispersion liquid, to flask
Middle dropping 4mL hexadecyl trimethoxy silane, and flask is put in water-bath, stirring reaction 2.5h under the conditions of 70 DEG C,
After reaction, centrifugation obtains precipitate, is dried with 4 final vacuums of toluene rinse, obtains modified manometer silicon dioxide powder body, by solid-liquid
Ultrasonic disperse 13min after mixing than 1:5 and Polyethylene Glycol, obtains modified manometer silicon dioxide colloidal sol, standby；Count by weight,
Choose respectively 27 parts of allyl glycidyl ethers, 33 parts of dimethyl acetylamide, 23 parts of standby concentrated solutions, 17 portions of diethylene glycol, 8 parts
Sodium hydroxide, 17 parts of diammonium phosphate, 2 parts of SAN-619F, 10 parts of DDAC and 2 parts of azodiisobutyronitriles,
Stirring reaction 2.5h under the conditions of 70 DEG C, after reaction, discharging obtains Wooden modifying liquid, standby；Choose timber and put into temperature and humidity regulator
In, under the conditions of relative humidity 100% and temperature 85 DEG C, heat decocting in water process 4h, the timber after decocting in water is put in pressurized tank,
Pressure be 2.2MPa and temperature be 85 DEG C under conditions of carry out explosion treatment, after pressure reaches designated value, open rapidly release
Valve, release, until normal pressure, boosts the most again, takes out timber after such repeated multiple times explosion treatment 25 times, dry in 80 DEG C of baking ovens
Dry moisture content to timber is 25%；By above-mentioned dried timber pickling in standby Wooden modifying liquid, soak 30min
Rear taking-up and under the conditions of temperature 100 DEG C oven drying 4h, receive in the one layer of standby modification of wood surface even application after drying
Rice silicon dioxide gel, sprays next layer again, repeats to spray 5 times after naturally drying 2min, be dried after spraying under the conditions of 130 DEG C
4 days, i.e. can obtain the crack resistence high-intensity wood that sterilizes.
What the present invention prepared wood preservation anti-microbial property reaches 93%, and anticorrosion grade reaches corrosion resistant level, the footpath of timber
Respectively reach 43%, 53% to the tangential swollen coefficient of moisture-resisting, radially inhale bulking factor 1.0%；Tangential suction bulking factor 1.0%, wood
Material Deflection Modulus of Elasticity is 7.2Gpa, and bending strength is 87.6Mpa, and comprcssive strength is 47.8Mpa, and case hardness is 2680N, punching
Hitting toughness is 28.5KJ/m2。
Example 3
Weigh 70g Bulbus Lilii leaf and 150g leached tea oil slag the most respectively, pulverize after drying, sieve to obtain 60 mesh Bulbus Lilii leaf powder and 60 mesh tea
Seed dregs of rice powder, stirs after being mixed by powder, and is mixed with mass fraction 10% ammonia by solid-to-liquid ratio 1:8 by mixed-powder, leaching
Sucking filtration after bubble 10h, obtains filtering residue；By above-mentioned filtering residue lyophilization, dried object is mixed with propane by solid-to-liquid ratio 1:5, uses supercritical
Carbon dioxide extracts 40min under conditions of critical pressure is 4.5Mpa and critical temperature is 98 DEG C, and extraction is centrifugal after terminating to divide
From obtaining supernatant, after supernatant rotary evaporation is removed propane solvent, obtain concentrated solution, standby；Divide in the there-necked flask of 500mL
Not Jia Ru 5g nano silica microsphere, 150mL mass fraction 95% ethanol solution, ultrasonic disperse 15min obtains dispersion liquid, to burning
Drip 5mL hexadecyl trimethoxy silane in Ping, and flask is put in water-bath, stirring reaction 3h under the conditions of 80 DEG C,
After reaction, centrifugation obtains precipitate, is dried with 5 final vacuums of toluene rinse, obtains modified manometer silicon dioxide powder body, by solid-liquid
Ultrasonic disperse 15min after mixing than 1:5 and Polyethylene Glycol, obtains modified manometer silicon dioxide colloidal sol, standby；Count by weight,
Choose respectively 30 parts of allyl glycidyl ethers, 35 parts of dimethyl acetylamide, 25 parts of standby concentrated solutions, 20 portions of diethylene glycol, 10
Part sodium hydroxide, 20 parts of diammonium phosphate, 3 parts of SAN-619F, 12 parts of DDAC and 3 parts of azo two isobutyls
Nitrile, stirring reaction 3h under the conditions of 80 DEG C, after reaction, discharging obtains Wooden modifying liquid, standby；Choose timber and put into temperature and humidity regulator
In, under the conditions of relative humidity 100% and temperature 90 DEG C, heat decocting in water process 5h, the timber after decocting in water is put in pressurized tank,
Pressure be 2.5MPa and temperature be 90 DEG C under conditions of carry out explosion treatment, after pressure reaches designated value, open rapidly release
Valve, release, until normal pressure, boosts the most again, takes out timber after such repeated multiple times explosion treatment 30 times, dry in 100 DEG C of baking ovens
Dry moisture content to timber is 30%；By above-mentioned dried timber pickling in standby Wooden modifying liquid, soak 40min
Rear taking-up and under the conditions of temperature 105 DEG C oven drying 5h, receive in the one layer of standby modification of wood surface even application after drying
Rice silicon dioxide gel, sprays next layer again, repeats to spray 6 times after naturally drying 3min, be dried after spraying under the conditions of 140 DEG C
5 days, i.e. can obtain the crack resistence high-intensity wood that sterilizes.
What the present invention prepared wood preservation anti-microbial property reaches 94%, and anticorrosion grade reaches corrosion resistant level, the footpath of timber
Respectively reach 44%, 54% to the tangential swollen coefficient of moisture-resisting, radially inhale bulking factor 0.95%；Tangential suction bulking factor 1.0%, wood
Material Deflection Modulus of Elasticity is 7.5Gpa, and bending strength is 90.3Mpa, and comprcssive strength is 50.2Mpa, and case hardness is 2810N, punching
Hitting toughness is 30.2KJ/m2。
Claims (1)
1. the preparation method of the crack resistence high-intensity wood that sterilizes, it is characterised in that concrete preparation process is:
(1) weigh 50～70g Bulbus Lilii leafs and 100～150g leached tea oil slags respectively, pulverize after drying, sieve to obtain 50～60 mesh Bulbus Lilii leafs
Powder and 50～60 mesh leached tea oil slag powder, stir after being mixed by powder, and divided with quality by solid-to-liquid ratio 1:8 by mixed-powder
Several 10% ammonia mixing, sucking filtration after soaking 8～10h, obtain filtering residue；
(2) by dried object being mixed with propane by solid-to-liquid ratio 1:5 after above-mentioned filtering residue lyophilization, facing with supercritical carbon dioxide
Boundary's pressure be 4.2～4.5Mpa and critical temperature be 96～98 DEG C under conditions of extract 30～40min, extraction after terminating centrifugal point
From obtaining supernatant, after supernatant rotary evaporation is removed propane solvent, obtain concentrated solution, standby；
(3) in the there-necked flask of 500mL, it is separately added into 3～5g nano silica microspheres, 120～150mL mass fraction 95%
Ethanol solution, ultrasonic disperse 5～15min obtains dispersion liquid, drips 3～5mL hexadecyl trimethoxy silane in flask, and will
Flask is put in water-bath, and stirring reaction 2～3h under the conditions of 60～80 DEG C, after reaction, centrifugation obtains precipitate, uses toluene
Rinse 3～5 final vacuums to be dried, obtain modified manometer silicon dioxide powder body, and by ultrasonic after solid-to-liquid ratio 1:5 and Polyethylene Glycol mixing
Dispersion 10～15min, obtains modified manometer silicon dioxide colloidal sol, standby；
(4) count by weight, choose respectively 25～30 parts of allyl glycidyl ethers, 30～35 parts of dimethyl acetylamide, 20
～the standby concentrated solution of 25 parts of steps (2), 15～20 portions of diethylene glycol, 5～10 parts of sodium hydroxide, 15～20 parts of diammonium phosphate, 2
～3 parts of SAN-619F, 8～12 parts of DDAC and 1～3 part of azodiisobutyronitrile, under the conditions of 60～80 DEG C
Stirring reaction 2～3h, after reaction, discharging obtains Wooden modifying liquid, standby；
(5) choose timber and put in temperature and humidity regulator, heat at decocting in water under the conditions of relative humidity 100% and temperature 80～90 DEG C
Reason 3～5h, puts in pressurized tank by the timber after decocting in water, in the condition that pressure is 1.2～2.5MPa and temperature is 80～90 DEG C
Under carry out explosion treatment, after pressure reaches designated value, open rapidly pressure-relief valve, release, until normal pressure, is boosted the most again, so
Taking out timber after repeated multiple times explosion treatment 20～30 times, the moisture content being dried in 60～100 DEG C of baking ovens to timber is 20
～30%；
(6) by above-mentioned dried timber pickling in the Wooden modifying liquid that step (4) is standby, take out after soaking 20～40min
And under the conditions of temperature 90～105 DEG C oven drying 3～5h, standby one layer of step (3) of wood surface even application after drying
Modified manometer silicon dioxide colloidal sol, spray next layer after naturally drying 1～3min again, repeat to spray 4～6 times, after spraying
It is dried under the conditions of 120～140 DEG C 3～5 days, i.e. can obtain the crack resistence high-intensity wood that sterilizes.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106895664A (en) * | 2017-02-23 | 2017-06-27 | 中山市太兴家具有限公司 | A kind of combined drying method of control wood shrinkage |
| CN107053391A (en) * | 2017-04-08 | 2017-08-18 | 阜南县永盛工艺品有限公司 | It is a kind of to improve the method for the wooden dimensional stability of paulownia |
| CN107379185A (en) * | 2017-07-13 | 2017-11-24 | 阜南县铭钰柳木工艺品有限公司 | A kind of preparation method of wicker plaiting article meal basket |
| CN107650225A (en) * | 2017-09-21 | 2018-02-02 | 浙江顶丰家具有限公司 | A kind of soluble nano-inorganic substance penetrates into the method and its equipment of timber |
| CN109049202A (en) * | 2018-08-29 | 2018-12-21 | 佛山市森昂生物科技有限公司 | A kind of method of timber anticracking |
| CN112092129A (en) * | 2019-06-18 | 2020-12-18 | 南通飞云工艺家具有限公司 | Preparation method of high-strength wear-resistant wood based on environment-friendly resin reinforcement |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895664A (en) * | 2017-02-23 | 2017-06-27 | 中山市太兴家具有限公司 | A kind of combined drying method of control wood shrinkage |
| CN106895664B (en) * | 2017-02-23 | 2019-06-11 | 中山市太兴家具有限公司 | A kind of combined drying method controlling wood shrinkage |
| CN107053391A (en) * | 2017-04-08 | 2017-08-18 | 阜南县永盛工艺品有限公司 | It is a kind of to improve the method for the wooden dimensional stability of paulownia |
| CN107379185A (en) * | 2017-07-13 | 2017-11-24 | 阜南县铭钰柳木工艺品有限公司 | A kind of preparation method of wicker plaiting article meal basket |
| CN107650225A (en) * | 2017-09-21 | 2018-02-02 | 浙江顶丰家具有限公司 | A kind of soluble nano-inorganic substance penetrates into the method and its equipment of timber |
| CN109049202A (en) * | 2018-08-29 | 2018-12-21 | 佛山市森昂生物科技有限公司 | A kind of method of timber anticracking |
| CN112092129A (en) * | 2019-06-18 | 2020-12-18 | 南通飞云工艺家具有限公司 | Preparation method of high-strength wear-resistant wood based on environment-friendly resin reinforcement |
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