CN105563579B - A kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method - Google Patents
A kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method Download PDFInfo
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- CN105563579B CN105563579B CN201510979285.2A CN201510979285A CN105563579B CN 105563579 B CN105563579 B CN 105563579B CN 201510979285 A CN201510979285 A CN 201510979285A CN 105563579 B CN105563579 B CN 105563579B
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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
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- 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
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
-
- 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
- B27K2240/30—Fireproofing
Abstract
The invention belongs to a kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method, step is：It is 1 according to melamine, formaldehyde, methanol, urea mol ratio:2~2.5:0.5~1.0:0.2~1.0 proportioning is got the raw materials ready, and toughener addition is the 10%~30% of melamine.Constituted, matched, using low temperature, long-time subsection synthesis technique by adjusting raw material, added alcohols toughener, polymerization inhibitor etc., prepare a kind of good water solubility, high osmosis, the dipping of low molecule amount modified cyanurotriamide Lauxite；By multiple alternate type of respiration impregnation process technique, the infiltration lane of Refractory wood is effectively got through, it is obtained uniformly penetrating, wood performance is substantially improved.The present invention can fully be permeated to the timber that hardly possible is impregnated, and significantly improve timber multiple performance, and the artificial forest fast growing wood being modified through this method is big with density, and intensity is high, good toughness, dimensionally stable is fire-retardant, fungus-proof antisepsis, good processability, production environmental protection, using effect is good, the advantages of added value is high.
Description
Technical field
The invention belongs to a kind of high activity Thief zone resin type timber enhancing that can be effectively permeated to Refractory wood
Modifying agent and efficient impregnation process control method.
Background technology
China's artificial forest area ranks first in the world, and because artificial forest wood is present, density is small, material is soft, intensity is low lacks
Fall into, it is necessary to carry out enhancing modification, its high value added utilization could be realized, so as to promote China's artificial forest resources advantage to warp
Ji advantage is converted.But some timber（Such as China fir）It is the problem that Wooden modifying expert tries hard to capture all the time to impregnate hardly possible.Due to
The reasons such as the pit membrane that wood of Cunninghamia lanceolata pit is generally crusted completely by amorphous substance deposition and formation, poor permeability, both at home and abroad
Researcher once proposed that mechanical treatment, Solvent exchange drying, steam blasting, hydro-thermal process, microbiological treatment and freezing were dry respectively
The method of a variety of improvement wood permeabilities such as dry, but never it is used for the reported success of China fir.So, improve modified medicinal liquid osmosis
Property, improvement impregnation process technique so that realize effective infiltration to Refractory wood be solve difficulty impregnate artificial forest wood modification
Key.
Domestic and foreign scholars have carried out numerous studies to resin dipping modification, are directed to improving density, the chi of low quality wood more
Very little stability and mechanical property.Resin dipping is modified the problem of existing：Modification liquid molecular weight is bigger than normal, viscosity is higher, it is difficult to realize
Uniform, effective infiltration to large-sized plates material；In the preparation process of modification liquid, free formaldehyde content is exceeded, to human body and environment
It is harmful；The medicament storage phase is shorter, easily muddy in a short time, it is impossible to reuse；The improved wood surface moisture absorption, influence paint and gluing
Performance；Resin dipping enhancing processing can often cause toughness to reduce while strength of wood is improved；Modification integrated cost compared with
It is high.Therefore, inexpensive, low formaldehyde, tough guarantor, enhancing, repeatable utilization, Thief zone, the development of low molecule amount organic resin are trees
Fat impregnates the modification major issue to be solved.
The content of the invention
The purpose of the present invention is to design a kind of high osmosis resin type timber reinforced modifier and the control of efficient impregnation process
Method, can fully be permeated to the timber that hardly possible is impregnated, significantly improve wood performance, the artificial forest being modified through this method is soft
Timber, big with density, intensity is high, and good toughness, dimensionally stable is fire-retardant, fungus-proof antisepsis, good processability, production environmental protection, uses
Effect is good, the advantages of added value is high.
For this, method of the invention has the following steps：
(1) it is 1 according to melamine, formaldehyde, methanol, urea mol ratio:2~2.5:0.5~1.0:0.2~1.0 matches somebody with somebody
Than getting the raw materials ready, toughener addition is the 10%~30% of melamine parts by weight；
(2) increasing that the melamine of melamine parts by weight 30%~35% will be accounted for He melamine parts by weight 10%~30% are accounted for
In tough dose of addition reactor, heating stirring is 4.5~6.0 with acetic acid regulation solution ph, is warming up to 80~90 DEG C, reaction 60
~90 minutes, obtain melamine and toughener mixed liquor；
(3）Reactor is reduced into temperature to 60 DEG C, formaldehyde and remaining melamine are added, with the sodium hydroxide of concentration 20%
Solution regulation solution ph is 8.0~9.0, and temperature control is reacted 40~60 minutes at 70~80 DEG C, obtains being etherified the three of toughness reinforcing
Melamine-formaldehyde resin mixture liquor；
(4) urea for accounting for weight of urea part 80%~85% is added in the melamine resin mixed liquor of etherificate toughness reinforcing
With whole methanol, it is 11.5~12.5 with the sodium hydroxide solution of concentration 40% regulation solution ph, is warming up to 65~75 DEG C, reaction
60 minutes, reduction temperature added remaining urea to 60~62 DEG C, with the hydrochloric acid solution of concentration 10% adjust solution pH value be 7.0~
8.0, continue to react, obtain being etherified the melamine resin of toughness reinforcing and the mixed liquor of Lauxite.
(5）When the mixing multiple of reaction solution and water is 1：When 5~10,30~60 DEG C are cooled to, adds and accounts for etherificate toughness reinforcing
The polymerization inhibitor of the mixeding liquid volume 5%~7% of melamine resin and Lauxite, reduction temperature is obtained to less than 40 DEG C
Tough modifying agent is protected to enhancing；
(6）Enhancing is protected into tough modifying agent to add water, the aqueous solution that mass percent is 10%~30% is deployed into, addition accounts for water-soluble
The fire retardant of liquid product 1%~10% and the fungusproof anti-corrosion agent for accounting for aqueous solution volume 0.05%~5%, are well mixed, obtain Thief zone
Property resin type timber reinforced modifier；
(7）Moisture content is inserted in closed impregnation process tank for less than 10% artificial forest wood, vacuumizing makes to bear in tank
Press as -0.08~-0.10MPa, holding 30~60 minutes；Using the suction function in impregnation process tank by high osmosis resin type
Timber reinforced modifier injects process tank and fully floods timber, releases vacuum, applies 0.4~1.2MPa gas into tank body
Pressure, is kept for 1~4 hour；
(8）Impregnation process pressure tank is released, vacuumizing makes negative pressure in tank be -0.08~-0.10MPa, is kept for 30~60 points
Clock；Vacuum is released, applies 0.4~1.2MPa air pressure into tank body, is kept for 1~4 hour；With it is identical or in the range of it is different
Pressure and it is time-interleaved vacuumized, release, pressurization, pressurize, stress-relief process, altogether 2~5 times；
(9）The pressure of impregnation process tank is released, by the discharge of remaining high osmosis resin type timber reinforced modifier, is collected
And reuse, the timber Jing Guo impregnation process is taken out, stacking, gas is done to moisture content below 50%, then kiln drying is carried out, dry temperature
40~160 DEG C of degree, 7~17 days drying times, finally gives the improved wood that moisture content is 8%~12%.
Described polymerization inhibitor is one kind or many in polyethylene glycol, dipropylene glycol, diethylene glycol (DEG), epoxy propane butyl ether
The combination planted.
Described fire retardant is one in boric acid, borax, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, low-polymerization-dammonium ammonium polyphosphate
Plant or a variety of combinations.
Described fungusproof anti-corrosion agent is boric acid, borax, ammoniacal copper quaternary, Tebuconazole, propiconazole, Cyproconazole, Boron tribromide, two
One or more combinations in decyl dimethyl ammonium chloride, trimethoxy silicon substrate propyl group-octadecyldimethyl ammonium chloride.
Described artificial forest wood is the fast growing woods such as poplar, China fir, pine, paulownia, the rubber wood timber of artificial growth.
The above method has reached the purpose of the present invention.
The present invention can fully be permeated to the timber that hardly possible is impregnated, and significantly improve wood performance, the people being modified through this method
Work woods softwood, big with density, intensity is high, and good toughness, dimensionally stable is fire-retardant, fungus-proof antisepsis, good processability, production
Environmental protection, using effect is good, the advantages of added value is high.
Using the high osmosis resin type timber reinforced modifier of the present invention and " type of respiration " dipping and control method, can have
Effect gets through such as China fir pit infiltration lane.The China fir processed by the invention visible China fir bordered pit under SEM ESEMs
Situations such as edge is destroyed, situations such as visible China fir aspirated pit restores under TEM transmission electron microscopes.Timber rate of body weight gain reaches after processing
32%.Moisture content 8%.Density by before processing 0.352g/cm3Increase to 0.590g/cm3.Swollen rate is resisted to lift more than 53%.Bending resistance
Modulus of elasticity increases to 7.4Gpa by 4.9Gpa.Bending strength increases to 79.3Mpa by 47.7Mpa.Compression strength is by 22.5Mpa
Increase to 44.2Mpa.Case hardness increases to 2354 N by 1042N.Impact flexibility is by 21.58 KJ/m2Increase to 22.96
KJ/m2.The mg/L of condensed steam water burst size of methanal≤0.4.Oxygen index (OI) is by 23% lifting to 49%；Fungus-proof antisepsis is functional.
The softwoods such as Cunninghamia lanceolata, poplar after processing modified by this invention, most prominent advantage is that density is big, by force
Degree is high, and good toughness, dimensionally stable is fire-retardant, fungus-proof antisepsis, good processability, and environmental protection can be directly used for solid wooden floor board, door and window, family
The high value added products such as tool, decorative wall panels process, and can add as needed water-soluble dye assign processing material dyeing etc. its
Its function, adapts to multifunction demand of the Vehicles Collected from Market to improved wood completely.Present embodiments can apply to poplar, China fir, pine,
The artificial forest fast growing wood such as paulownia, rubber wood timber, greatly promotes its value and added value of product.
According to GB/T 14074-2006《Based Wood Adhesives and its resin method of inspection》Test the high osmosis resin type
The property indices of timber reinforced modifier are as follows：
Outward appearance：Water white transparency homogeneous liquid；
Solids content：54~58%；
PH value：7.0~8.0；
Viscosity（23℃）：4~7 mPa.s；
Free formaldehyde content：0.15%；
Water mixing multiple：5~10 times；
Storage period：More than 45 days.
Present embodiments can apply to the artificial forest fast growing wood such as poplar, China fir, pine, paulownia, rubber wood timber, its profit is greatly promoted
With value and added value of product.
Embodiment
A kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method, step are as follows：
(1) it is 1 according to melamine, formaldehyde, methanol, urea mol ratio:2~2.5:0.5~1.0:0.2~1.0 matches somebody with somebody
Than getting the raw materials ready, toughener addition is the 10%~30% of melamine parts by weight；
(2) increasing that the melamine of melamine parts by weight 30%~35% will be accounted for He melamine parts by weight 10%~30% are accounted for
In tough dose of addition reactor, heating stirring is 4.5~6.0 with acetic acid regulation solution ph, is warming up to 80~90 DEG C, reaction 60
~90 minutes, obtain melamine and toughener mixed liquor；
(3）Reactor is reduced into temperature to 60 DEG C, formaldehyde and remaining melamine are added, with the sodium hydroxide of concentration 20%
Solution regulation solution ph is 8.0~9.0, and temperature control is reacted 40~60 minutes at 70~80 DEG C, obtains being etherified the three of toughness reinforcing
Melamine-formaldehyde resin mixture liquor；
(4) urea for accounting for weight of urea part 80%~85% is added in the melamine resin mixed liquor of etherificate toughness reinforcing
With whole methanol, it is 11.5~12.5 with the sodium hydroxide solution of concentration 40% regulation solution ph, is warming up to 65~75 DEG C, reaction
60 minutes, reduction temperature added remaining urea to 60~62 DEG C, with the hydrochloric acid solution of concentration 10% adjust solution pH value be 7.0~
8.0, continue to react, obtain being etherified the melamine resin of toughness reinforcing and the mixed liquor of Lauxite.
(5）When the mixing multiple of reaction solution and water is 1：When 5~10,30~60 DEG C are cooled to, adds and accounts for etherificate toughness reinforcing
The polymerization inhibitor of the mixeding liquid volume 5%~7% of melamine resin and Lauxite, reduction temperature is obtained to less than 40 DEG C
Tough modifying agent is protected to enhancing；
(6）Enhancing is protected into tough modifying agent to add water, the aqueous solution that mass percent is 10%~30% is deployed into, addition accounts for water-soluble
The fire retardant of liquid product 1%~10% and the fungusproof anti-corrosion agent for accounting for aqueous solution volume 0.05%~5%, are well mixed, obtain Thief zone
Property resin type timber reinforced modifier；
(7）Moisture content is inserted in closed impregnation process tank for less than 10% artificial forest wood, vacuumizing makes to bear in tank
Press as -0.08~-0.10MPa, holding 30~60 minutes；Using the suction function in impregnation process tank by high osmosis resin type
Timber reinforced modifier injects process tank and fully floods timber, releases vacuum, applies 0.4~1.2MPa gas into tank body
Pressure, is kept for 1~4 hour；
(8）Impregnation process pressure tank is released, vacuumizing makes negative pressure in tank be -0.08~-0.10MPa, is kept for 30~60 points
Clock；Vacuum is released, applies 0.4~1.2MPa air pressure into tank body, is kept for 1~4 hour；With it is identical or in the range of it is different
Pressure and it is time-interleaved vacuumized, release, pressurization, pressurize, stress-relief process, altogether 2~5 times；
(9）The pressure of impregnation process tank is released, by the discharge of remaining high osmosis resin type timber reinforced modifier, is collected
And reuse, the timber Jing Guo impregnation process is taken out, stacking, gas is done to moisture content below 50%, then kiln drying is carried out, dry temperature
40~160 DEG C of degree, 7~17 days drying times, finally gives the improved wood that moisture content is 8%~12%.
Described toughener is in polyethylene glycol, polysiloxanes, polyvinyl alcohol, diethylene glycol (DEG), polypropylene glycol glycidol ether
One kind, or a variety of combination.
Described polymerization inhibitor is one kind or many in polyethylene glycol, dipropylene glycol, diethylene glycol (DEG), epoxy propane butyl ether
The combination planted.
Described fire retardant is one in boric acid, borax, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, low-polymerization-dammonium ammonium polyphosphate
Plant or a variety of combinations.
Described fungusproof anti-corrosion agent is boric acid, borax, ammoniacal copper quaternary, Tebuconazole, propiconazole, Cyproconazole, Boron tribromide, two
One or more combinations in decyl dimethyl ammonium chloride, trimethoxy silicon substrate propyl group-octadecyldimethyl ammonium chloride.
Described artificial forest wood is the fast growing woods such as poplar, China fir, pine, paulownia, the rubber wood timber of artificial growth.
Embodiment 1：
10kg melamines and 1kg polyvinyl alcohol, 4kg polyethylene glycol are added in reactor, 80 DEG C are warming up to, stirring is equal
It is 5.0 to adjust solution ph with acetic acid after even, and temperature is maintained at 80 DEG C, reacts 60 minutes；60 DEG C are cooled to, 38kg formaldehyde is added
With 18kg melamines, it is 9.0 with sodium hydrate regulator solution pH value, temperature is maintained at 75 DEG C, reacts 60 minutes；Add
10.5kg urea and 17kg methanol, regulation solution ph is 12, is warming up to 70 DEG C, is reacted 60 minutes；It is cooled to 65 DEG C, addition
2kg urea, regulation solution ph is 7.5, continues to react；When the mixing multiple of reaction solution and water is 7,40 DEG C are cooled to, plus
Enter 3.5kg dipropylene glycols, 2kg diethylene glycol (DEG)s, obtain a kind of Thief zone high activity resin type timber enhancing and protect tough modifying agent.Will
The dipping modifying agent of synthesis is diluted with water into the resin solution that mass fraction is 20%, and addition accounts for solution quality percentage and is respectively
1% boric acid, 2% borax and 0.1% propiconazole, obtain timber pickling modification solution.
According to GB/T 14074-2006《Based Wood Adhesives and its resin method of inspection》Test the high activity Thief zone tree
The property indices of epoxy-type timber enhancing modification solution are as follows：
Outward appearance：Water white transparency homogeneous liquid；
Solids content：56%；
PH value：7.0~8.0；
Viscosity（23℃）：6 mPa.s；
Free formaldehyde content：0.15%；
Water mixing multiple：9 times；
Storage period：60 days.
It is 2000mm × 200mm × 25mm by specification（Longitudinal direction × tangential × radially）, moisture content be 8-10% artificial forest China fir
Wood and cottonwood plank stuff are regularly piled up in impregnation process tank body, and sheet material is fixed, and close process tank, start to take out true
Sky, makes negative pressure in tank reach -0.10MPa, keeps 30min；Timber is fully flooded using suction function suction modification liquid in tank, is released
Vacuum, applies 0.6MPa air pressure into tank body, is kept for 2 hours.Pressure relief, is evacuated to -0.10MPa, keeps 30min；
Vacuum is released, 0.8MPa is forced into, is kept for 2 hours.Pressure relief, is evacuated to -0.10MPa, keeps 30min；Release vacuum,
1.0MPa is forced into, is kept for 2 hours.Pressure relief, is evacuated to -0.10MPa, keeps 30min；Vacuum is released, is forced into
1.2MPa, is kept for 2 hours.Pressure relief, discharges extraction raffinate, takes out processing material, and stacking, gas is done to less than 50% moisture content, is moved into dry
Dry kiln, at a temperature of 40~160 DEG C, gradient type heating drying is dried 10 days, obtains improved wood.
According to 1927 ~ 1943-2009 of GB/T《Physico-mechanical Properties of The Wood test method》Deng standard method to Wooden modifying
Every physical and mechanical property indexs before and after the processing are detected, as a result as follows：
Poplar wood in plantation handles material：Timber rate of body weight gain is up to 36% after processing, moisture content 8%, density by before processing 0.395g/
cm3Increase to 0.687g/cm3；Swollen rate is resisted to lift more than 55%；Deflection Modulus of Elasticity increases to 13.2Gpa by 8.6Gpa；Bending resistance
Intensity increases to 112.8Mpa by 58.3Mpa；Compression strength increases to 63.5Mpa by 29.8Mpa；Case hardness is increased by 1128N
Greatly to 3158 N；Impact flexibility is by 22.14 KJ/m2Increase to 25.36 KJ/m2；Condensed steam water burst size of methanal≤0.35mg/
L；Oxygen index (OI) is by 24% lifting to 50%；Fungus-proof antisepsis is functional.
Cunninghamia lanceolata handles material：Using the present invention high activity high osmosis resin type timber reinforced modifier and " exhale
Suction " impregnates control technology, can effectively get through the infiltration lanes such as China fir pit, the visible China fir tool edge line under SEM ESEMs
Situations such as peritreme is destroyed, situations such as visible China fir aspirated pit restores under TEM transmission electron microscopes；Timber rate of body weight gain reaches after processing
32%, moisture content 8%, density by before processing 0.352g/cm3Increase to 0.590g/cm3；Swollen rate is resisted to lift more than 53%；Bending resistance
Modulus of elasticity increases to 7.4Gpa by 4.9Gpa；Bending strength increases to 79.3Mpa by 47.7Mpa；Compression strength is by 22.5Mpa
Increase to 44.2Mpa；Case hardness increases to 2354 N by 1042N；Impact flexibility is by 21.58 KJ/m2Increase to 22.96
KJ/m2, condensed steam water burst size of methanal≤0.45mg/L；Oxygen index (OI) is by 23% lifting to 49%；Fungus-proof antisepsis is functional.
The softwoods such as Cunninghamia lanceolata, poplar after processing modified by this invention, most prominent advantage is that density is big, by force
Degree is high, and good toughness, dimensionally stable is fire-retardant, fungus-proof antisepsis, good processability, and environmental protection can be directly used for solid wooden floor board, door and window, family
The high value added products such as tool, decorative wall panels process, and can add as needed water-soluble dye assign processing material dyeing etc. its
Its function, adapts to multifunction demand of the Vehicles Collected from Market to improved wood completely.Present embodiments can apply to poplar, China fir, pine,
The artificial forest fast growing wood such as paulownia, rubber wood timber, greatly promotes its value and added value of product.
In a word, the present invention can fully be permeated to the timber that hardly possible is impregnated, and significantly improved wood performance, be modified through this method
Artificial forest fast growing wood, big with density, intensity is high, and good toughness, dimensionally stable is fire-retardant, fungus-proof antisepsis, good processability,
Production environmental protection, using effect is good, the advantages of added value is high.
Claims (5)
1. a kind of efficient impregnation process control method of high osmosis resin type timber reinforced modifier, it is characterised in that：Step
It is as follows,
(1) it is 1 according to melamine, formaldehyde, methanol, urea mol ratio:2~2.5:0.5~1.0:0.2~1.0 proportioning is standby
Material, toughener addition is the 10%~30% of melamine weight；Described toughener is polyethylene glycol, polysiloxanes, poly- second
One kind in enol, diethylene glycol (DEG), polypropylene glycol glycidol ether, or a variety of combinations；
(2) melamine of melamine weight 30%~35% will be accounted for and accounts for the toughener addition of melamine weight 10%~30%
In reactor, heating stirring is 4.5~6.0 with acetic acid regulation solution ph, is warming up to 80~90 DEG C, reacts 60~90 minutes,
Obtain melamine and toughener mixed liquor；
(3）Reactor is reduced into temperature to 60 DEG C, formaldehyde and remaining melamine are added, with the sodium hydroxide solution of concentration 20%
It is 8.0~9.0 to adjust solution ph, and temperature control is reacted 40~60 minutes at 70~80 DEG C, obtains being etherified the melamine of toughness reinforcing
Amine-formaldehyde resins mixed liquor；
(4) urea and whole for accounting for weight of urea 80%~85% are added in the melamine resin mixed liquor of etherificate toughness reinforcing
Methanol, is 11.5~12.5 with the sodium hydroxide solution of concentration 40% regulation solution ph, is warming up to 65~75 DEG C, reacts 60 minutes,
Temperature is reduced to 60~62 DEG C, remaining urea is added, it is 7.0~8.0 to adjust solution pH value with the hydrochloric acid solution of concentration 10%, is continued
Reaction, obtains being etherified the melamine resin of toughness reinforcing and the mixed liquor of Lauxite；
(5）When the mixing multiple of reaction solution and water is 1：When 5~10,30~60 DEG C are cooled to, the trimerization for accounting for etherificate toughness reinforcing is added
The polymerization inhibitor of the mixeding liquid volume 5%~7% of cyanamide formaldehyde resin and Lauxite, reduction temperature is increased to less than 40 DEG C
Tough modifying agent is protected by force；
(6）Enhancing is protected into tough modifying agent to add water, the aqueous solution that mass percent is 10%~30% is deployed into, addition accounts for aqueous liquid
The fire retardant of product 1%~10% and the fungusproof anti-corrosion agent for accounting for aqueous solution volume 0.05%~5%, are well mixed, obtain high osmosis tree
Epoxy-type timber reinforced modifier；
(7）Moisture content is inserted in closed impregnation process tank for less than 10% artificial forest wood, vacuumizing makes negative pressure in tank
For -0.08~-0.10MPa, kept for 30~60 minutes；It is using the suction function in impregnation process tank that high osmosis resin type is wooden
Material reinforced modifier injects process tank and fully floods timber, releases vacuum, applies 0.4~1.2MPa air pressure into tank body,
Kept for 1~4 hour；
(8）Impregnation process pressure tank is released, vacuumizing makes negative pressure in tank be -0.08~-0.10MPa, is kept for 30~60 minutes；Solution
Except vacuum, apply 0.4~1.2MPa air pressure into tank body, kept for 1~4 hour；With identical or different in the range of pressure
With it is time-interleaved vacuumized, release, pressurization, pressurize, stress-relief process, altogether 2~5 times；
(9）The pressure of impregnation process tank is released, by the discharge of remaining high osmosis resin type timber reinforced modifier, collects and lays equal stress on
Use again, take out the timber Jing Guo impregnation process, stacking, gas is done to moisture content below 50%, then carries out kiln drying, drying temperature 40
~160 DEG C, 7~17 days drying times, finally give the improved wood that moisture content is 8%~12%.
2. the method as described in claim 1, it is characterised in that：Described polymerization inhibitor be polyethylene glycol, dipropylene glycol,
One or more combinations in diethylene glycol (DEG), epoxy propane butyl ether.
3. the method as described in claim 1, it is characterised in that：Described fire retardant is boric acid, borax, diammonium hydrogen phosphate, phosphorus
One or more combinations in acid dihydride ammonium, low-polymerization-dammonium ammonium polyphosphate.
4. the method as described in claim 1, it is characterised in that：Described fungusproof anti-corrosion agent is boric acid, borax, ammoniacal copper quaternary, penta
Azoles alcohol, propiconazole, Cyproconazole, Boron tribromide, DDAC, trimethoxy silicon substrate propyl group-octadecyl two
One or more combinations in ammonio methacrylate.
5. the method as described in claim 1, it is characterised in that：Described artificial forest wood is the poplar of artificial growth, China fir
Wood, pine, paulownia, rubber wood timber.
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