CN105563579A - High-permeability resin type timber enhancing modifier and efficient immersion treatment control method - Google Patents
High-permeability resin type timber enhancing modifier and efficient immersion treatment control method Download PDFInfo
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- CN105563579A CN105563579A CN201510979285.2A CN201510979285A CN105563579A CN 105563579 A CN105563579 A CN 105563579A CN 201510979285 A CN201510979285 A CN 201510979285A CN 105563579 A CN105563579 A CN 105563579A
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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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention belongs to a high-permeability resin type timber enhancing modifier and an efficient immersion treatment control method. The method includes: preparing materials according to mole ratio of melamine to formaldehyde to methanol to urea being 1:2-2.5:0.5-1.0:0.2-1.0, wherein the adding amount of flexibilizer is 10-30% of the amount of the melamine. Modified melamine urea resin with good water solubility, high permeability and low molecular weight and used for immersion is prepared by adjusting raw material proportion, using a low-temperature long-time multistage synthesizing process and adding alcohol flexibilizer, polymerization inhibitor and the like. The permeation channels of timber hard in immersion are opened through a multi-time alternating breathing type immersion treatment process, the timber can be permeated evenly, and timber performance is improved greatly. The high-permeability resin type timber enhancing modifier and the efficient immersion treatment control method have the advantages that the timber hard in immersion can be permeated sufficiently, and various performance of the timber can be improved evidently; the fast-growing timber, modified by the method, of a man-made forest is high in density, high in strength, good in toughness, stable in size, flame retardant, capable of preventing mildew and corrosion, good in processing performance, environmental friendly in production, good in use effect, high in additional value, and the like.
Description
Technical field
The invention belongs to and a kind ofly can carry out the high activity Thief zone resin type timber reinforced modifier of effectively infiltration and efficient impregnation process control method to Refractory wood.
Background technology
China's artificial forest area ranks first in the world, and because artificial forest wood exists the defects such as density is little, material is soft, intensity is low, needs to carry out enhancing modification, could realize its high value added utilization, thus promote that China's artificial forest resources advantage transforms to economic advantages.But it is the difficult problem that Wooden modifying expert tries hard to capture that some timber (as China fir) impregnates difficulty all the time.Usually deposited and formed the reasons such as the pit membrane crusted completely by amorphous substance due to wood of Cunninghamia lanceolata pit, poor permeability, domestic and international researcher once proposed the multiple methods improving wood permeability such as mechanical treatment, Solvent exchange drying, steam blasting, hydrothermal treatment consists, microbiological treatment and freeze drying respectively, but never for the reported success of China fir.So, improve modification medicinal liquid osmosis, improvement impregnation process technique, thus realize effective infiltration of Refractory wood being solve difficult key of impregnating artificial forest wood modification.
Chinese scholars has carried out large quantity research to resin-dipping modification, is devoted to the density of raising low quality wood, dimensional stability and mechanical property more.Resin-dipping modification Problems existing: modification liquid molecular weight is bigger than normal, viscosity is higher, be difficult to realize to large gauge sheet material even, effectively permeate; In the preparation process of modification liquid, free formaldehyde content exceeds standard, to human body and bad environmental; The medicament storage phase is shorter, easily muddy in a short time, can not reuse; The improved wood surface moisture absorption, impact paint and glue performance; Resin-dipping strengthens the same toughness that often can cause that process is improving strength of wood and reduces; Modification integrated cost is higher.Therefore, low cost, low formaldehyde, protect tough, strengthen, can reuse, the development of Thief zone, low-molecular-weight organic resin is the major issue that resin-dipping modification will solve.
Summary of the invention
The object of the invention is to design a kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method, the timber that difficulty is impregnated fully can be permeated, significantly improve wood performance, through the artificial forest softwood of the method modification, have density large, intensity is high, good toughness, dimensionally stable, fire-retardant, fungus-proof antisepsis, good processability, production environmental protection, result of use is good, added value advantages of higher.
For this reason, method of the present invention has the following steps:
(1) proportioning being 1:2 ~ 2.5:0.5 ~ 1.0:0.2 ~ 1.0 according to melamine, formaldehyde, methyl alcohol, urea mol ratio is got the raw materials ready, and flexibilizer addition is 10% ~ 30% of melamine;
(2) melamine accounting for melamine weight portion 30% ~ 35% is added in reactor with the flexibilizer accounting for melamine weight portion 10% ~ 30%, heat up and stir, solution ph is regulated to be 4.5 ~ 6.0 with acetic acid, be warming up to 80 ~ 90 DEG C, react 60 ~ 90 minutes, obtain melamine and flexibilizer mixed liquor;
(3) reactor is reduced temperature to 60 DEG C, add formaldehyde and remaining melamine, regulate solution ph to be 8.0 ~ 9.0 with concentration 20% sodium hydroxide solution, temperature controls at 70 ~ 80 DEG C, react 40 ~ 60 minutes, obtain the melamine resin mixed liquor that etherificate is toughness reinforcing;
(4) in the melamine resin mixed liquor that etherificate is toughness reinforcing, the urea accounting for weight of urea part 80% ~ 85% and whole methyl alcohol is added, solution ph is regulated to be 11.5 ~ 12.5 with concentration 40% sodium hydroxide solution, be warming up to 65 ~ 75 DEG C, react 60 minutes, reduce temperature to 60 ~ 62 DEG C, add residue urea, regulate solution pH value to be 7.0 ~ 8.0 with concentration 10% hydrochloric acid solution, continue reaction, obtain the mixed liquor of the toughness reinforcing melamine resin of etherificate and Lauxite.
(5) when reactant liquor and water to mix multiple be 1:5 ~ 10 time, be cooled to 30 ~ 60 DEG C, add the polymerization inhibitor of the mixeding liquid volume 5% ~ 7% accounting for the toughness reinforcing melamine resin of etherificate and Lauxite, reduce below temperature to 40 DEG C, be enhanced and protect tough modifier;
(6) tough modifier is protected in enhancing to add water, be deployed into the aqueous solution that mass percent is 10% ~ 30%, add the fire retardant accounting for aqueous solution volume 1% ~ 10% and the fungusproof anti-corrosion agent accounting for aqueous solution volume 0.05% ~ 5%, mix, obtain high osmosis resin type timber reinforced modifier;
(7) by moisture content be 10% or following artificial forest wood insert in airtight impregnation process tank, vacuumize and make negative pressure in tank be-0.08 ~-0.10MPa, keep 30 ~ 60 minutes; Utilize the suction function in impregnation process tank to be strengthened by Thief zone high activity resin type timber protect tough modifier injection process tank and fully flood timber, remove vacuum, in tank body, apply the air pressure of 0.4 ~ 1.2MPa, keep 1 ~ 4 hour;
(8) remove impregnation process pressure tank, vacuumize and make negative pressure in tank be-0.08 ~-0.10MPa, keep 30 ~ 60 minutes; Remove vacuum, in tank body, apply the air pressure of 0.4 ~ 1.2MPa, keep 1 ~ 4 hour; With identical or in scope different pressure and time-interleavedly carry out vacuumizing, release, pressurization, pressurize, stress-relief process, amount to 2 ~ 5 times;
(9) pressure of impregnation process tank is removed, remaining high osmosis resin type timber reinforced modifier is discharged, collected and reuse, take out the timber through impregnation process, piling, gas is done to moisture content less than 50%, then carries out kiln drying, baking temperature 40 ~ 160 DEG C, 7 ~ 17 days drying times, finally obtain the improved wood that moisture content is 8% ~ 12%.
Described flexibilizer is the one in polyethylene glycol, polysiloxanes, polyvinyl alcohol, diethylene glycol (DEG), polypropylene glycol glycidol ether, or multiple combination.
Described polymerization inhibitor gathers the combination for one or more in ethylene glycol, dipropylene glycol, diethylene glycol (DEG), epoxy propane butyl ether.
Described fire retardant is one or more the combination in boric acid, borax, diammonium hydrogen phosphate, ammonium dihydrogen phosphate (ADP), low-polymerization-dammonium ammonium polyphosphate.
Described fungusproof anti-corrosion agent is one or more the combination in boric acid, borax, ammoniacal copper quaternary, Tebuconazole, propiconazole, Cyproconazole, Boron tribromide, DDAC, trimethoxy silica-based propyl group-octadecyldimethyl ammonium chloride.
Described artificial forest wood is the fast growing wood such as poplar, China fir, pine, paulownia, rubber wood timber of artificial growth.
Said method reaches object of the present invention.
The present invention fully can permeate the timber that difficulty is impregnated, and significantly improves wood performance, and through the artificial forest softwood of the method modification, have density large, intensity is high, good toughness, dimensionally stable, fire-retardant, fungus-proof antisepsis, good processability, production environmental protection, result of use is good, added value advantages of higher.
Utilize high osmosis resin type timber reinforced modifier of the present invention and " type of respiration " to flood and control method, can effectively get through as infiltration lanes such as China fir pits.Through situations such as the China fir of process of the present invention visible China fir bordered pit edge under SEM ESEM are destroyed, the situation such as visible China fir aspirated pit recovery under TEM transmission electron microscope.After process, timber rate of body weight gain reaches 32%.Moisture content 8%.Density is by 0.352g/cm before treatment
3increase to 0.590g/cm
3.Anti-swollen rate can promote more than 53%.Deflection Modulus of Elasticity increases to 7.4Gpa by 4.9Gpa.Bending strength increases to 79.3Mpa by 47.7Mpa.Compression strength increases to 44.2Mpa by 22.5Mpa.Case hardness increases to 2354N by 1042N.Impact flexibility is by 21.58KJ/m
2increase to 22.96KJ/m
2.Condensed steam water burst size of methanal≤0.4mg/L.Oxygen index (OI) rises to 49% by 23%; Fungus-proof antisepsis is functional.
The softwoods such as the Cunninghamia lanceolata after modification of the present invention, poplar, the most outstanding advantage is that density is large, and intensity is high, good toughness, dimensionally stable, fire-retardant, fungus-proof antisepsis, good processability, environmental protection, the high value added product processing such as solid wooden floor board, door and window, furniture, decorative wall panels can be directly used in, and other functions such as water-soluble dye imparting process material dyeing can be added as required, adapt to Vehicles Collected from Market completely to the multifunction demand of improved wood.The present invention may be used on the artificial forest fast growing woods such as poplar, China fir, pine, paulownia, rubber wood timber, greatly promotes its value and added value of product.
The property indices testing this high osmosis resin type timber reinforced modifier according to GB/T14074-2006 " based Wood Adhesives and the resin method of inspection thereof " is as follows:
Outward appearance: water white transparency homogeneous liquid;
Solids content: 54 ~ 58%;
PH value: 7.0 ~ 8.0;
Viscosity (23 DEG C): 4 ~ 7mPa.s;
Free formaldehyde content: 0.15%;
Water mixing multiple: 5 ~ 10 times;
Storage life: be greater than 45 days.
The present invention may be used on the artificial forest fast growing woods such as poplar, China fir, pine, paulownia, rubber wood timber, greatly promotes its value and added value of product.
Detailed description of the invention
A kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method, step is as follows:
(1) proportioning being 1:2 ~ 2.5:0.5 ~ 1.0:0.2 ~ 1.0 according to melamine, formaldehyde, methyl alcohol, urea mol ratio is got the raw materials ready, and flexibilizer addition is 10% ~ 30% of melamine;
(2) melamine accounting for melamine weight portion 30% ~ 35% is added in reactor with the flexibilizer accounting for melamine weight portion 10% ~ 30%, heat up and stir, solution ph is regulated to be 4.5 ~ 6.0 with acetic acid, be warming up to 80 ~ 90 DEG C, react 60 ~ 90 minutes, obtain melamine and flexibilizer mixed liquor;
(3) reactor is reduced temperature to 60 DEG C, add formaldehyde and remaining melamine, regulate solution ph to be 8.0 ~ 9.0 with concentration 20% sodium hydroxide solution, temperature controls at 70 ~ 80 DEG C, react 40 ~ 60 minutes, obtain the melamine resin mixed liquor that etherificate is toughness reinforcing;
(4) in the melamine resin mixed liquor that etherificate is toughness reinforcing, the urea accounting for weight of urea part 80% ~ 85% and whole methyl alcohol is added, solution ph is regulated to be 11.5 ~ 12.5 with concentration 40% sodium hydroxide solution, be warming up to 65 ~ 75 DEG C, react 60 minutes, reduce temperature to 60 ~ 62 DEG C, add residue urea, regulate solution pH value to be 7.0 ~ 8.0 with concentration 10% hydrochloric acid solution, continue reaction, obtain the mixed liquor of the toughness reinforcing melamine resin of etherificate and Lauxite.
(5) when reactant liquor and water to mix multiple be 1:5 ~ 10 time, be cooled to 30 ~ 60 DEG C, add the polymerization inhibitor of the mixeding liquid volume 5% ~ 7% accounting for the toughness reinforcing melamine resin of etherificate and Lauxite, reduce below temperature to 40 DEG C, be enhanced and protect tough modifier;
(6) tough modifier is protected in enhancing to add water, be deployed into the aqueous solution that mass percent is 10% ~ 30%, add the fire retardant accounting for aqueous solution volume 1% ~ 10% and the fungusproof anti-corrosion agent accounting for aqueous solution volume 0.05% ~ 5%, mix, obtain high osmosis resin type timber reinforced modifier;
(7) by moisture content be 10% or following artificial forest wood insert in airtight impregnation process tank, vacuumize and make negative pressure in tank be-0.08 ~-0.10MPa, keep 30 ~ 60 minutes; Utilize the suction function in impregnation process tank to be strengthened by Thief zone high activity resin type timber protect tough modifier injection process tank and fully flood timber, remove vacuum, in tank body, apply the air pressure of 0.4 ~ 1.2MPa, keep 1 ~ 4 hour;
(8) remove impregnation process pressure tank, vacuumize and make negative pressure in tank be-0.08 ~-0.10MPa, keep 30 ~ 60 minutes; Remove vacuum, in tank body, apply the air pressure of 0.4 ~ 1.2MPa, keep 1 ~ 4 hour; With identical or in scope different pressure and time-interleavedly carry out vacuumizing, release, pressurization, pressurize, stress-relief process, amount to 2 ~ 5 times;
(9) pressure of impregnation process tank is removed, remaining high osmosis resin type timber reinforced modifier is discharged, collected and reuse, take out the timber through impregnation process, piling, gas is done to moisture content less than 50%, then carries out kiln drying, baking temperature 40 ~ 160 DEG C, 7 ~ 17 days drying times, finally obtain the improved wood that moisture content is 8% ~ 12%.
Described flexibilizer is the one in polyethylene glycol, polysiloxanes, polyvinyl alcohol, diethylene glycol (DEG), polypropylene glycol glycidol ether, or multiple combination.
Described polymerization inhibitor gathers the combination for one or more in ethylene glycol, dipropylene glycol, diethylene glycol (DEG), epoxy propane butyl ether.
Described fire retardant is one or more the combination in boric acid, borax, diammonium hydrogen phosphate, ammonium dihydrogen phosphate (ADP), low-polymerization-dammonium ammonium polyphosphate.
Described fungusproof anti-corrosion agent is one or more the combination in boric acid, borax, ammoniacal copper quaternary, Tebuconazole, propiconazole, Cyproconazole, Boron tribromide, DDAC, trimethoxy silica-based propyl group-octadecyldimethyl ammonium chloride.
Described artificial forest wood is the fast growing wood such as poplar, China fir, pine, paulownia, rubber wood timber of artificial growth.
Embodiment 1:
Add in reactor by 10kg melamine and 1kg polyvinyl alcohol, 4kg polyethylene glycol, be warming up to 80 DEG C, regulate solution ph to be 5.0 with acetic acid after stirring, temperature remains on 80 DEG C, reacts 60 minutes; Be cooled to 60 DEG C, add 38kg formaldehyde and 18kg melamine, be 9.0 by sodium hydrate regulator solution pH value, temperature remains on 75 DEG C, reacts 60 minutes; Add 10.5kg urea and 17kg methyl alcohol, regulate solution ph to be 12, be warming up to 70 DEG C, react 60 minutes; Be cooled to 65 DEG C, add 2kg urea, regulate solution ph to be 7.5, continue reaction; When reactant liquor and water to mix multiple be 7 time, be cooled to 40 DEG C, add 3.5kg dipropylene glycol, 2kg diethylene glycol (DEG), obtain a kind of Thief zone high activity resin type timber and strengthen and protect tough modifier.The dipping modifier of synthesis is diluted with water into the resin solution that mass fraction is 20%, adds and account for solution quality percentage and be respectively the boric acid of 1%, the borax of 2% and 0.1% propiconazole, obtain timber pickling modification solution.
The property indices testing this high activity Thief zone resin type timber enhancing modification solution according to GB/T14074-2006 " based Wood Adhesives and the resin method of inspection thereof " is as follows:
Outward appearance: water white transparency homogeneous liquid;
Solids content: 56%;
PH value: 7.0 ~ 8.0;
Viscosity (23 DEG C): 6mPa.s;
Free formaldehyde content: 0.15%;
Water mixing multiple: 9 times;
Storage life: 60 days.
By specification be 2000mm × 200mm × 25mm(longitudinally × tangential × radial), moisture content is that the Cunninghamia lanceolata of 8-10% and cottonwood plank stuff are piled up in impregnation process tank body regularly, and sheet material is fixed, closing process tank, start to vacuumize, make negative pressure in tank reach-0.10MPa, keep 30min; Utilize suction function in tank to suck modification liquid and fully flood timber, remove vacuum, in tank body, apply the air pressure of 0.6MPa, keep 2 hours.Pressure relief, is evacuated to-0.10MPa, keeps 30min; Remove vacuum, be forced into 0.8MPa, keep 2 hours.Pressure relief, is evacuated to-0.10MPa, keeps 30min; Remove vacuum, be forced into 1.0MPa, keep 2 hours.Pressure relief, is evacuated to-0.10MPa, keeps 30min; Remove vacuum, be forced into 1.2MPa, keep 2 hours.Pressure relief, discharges remaining liquid, and take out process material, piling, gas is done to less than 50% moisture content, moves into dry kiln, and at the temperature of 40 ~ 160 DEG C, gradient type heats up dry, dry 10 days, obtains improved wood.
Detect the every physical and mechanical property index before and after Wooden modifying process according to standard methods such as GB/T1927 ~ 1943-2009 " Physico-mechanical Properties of The Wood test method ", result is as follows:
Poplar wood in plantation process material: after process, timber rate of body weight gain reaches 36%, moisture content 8%, and density is by 0.395g/cm before treatment
3increase to 0.687g/cm
3; Anti-swollen rate can promote more than 55%; Deflection Modulus of Elasticity increases to 13.2Gpa by 8.6Gpa; Bending strength increases to 112.8Mpa by 58.3Mpa; Compression strength increases to 63.5Mpa by 29.8Mpa; Case hardness increases to 3158N by 1128N; Impact flexibility is by 22.14KJ/m
2increase to 25.36KJ/m
2; Condensed steam water burst size of methanal≤0.35mg/L; Oxygen index (OI) rises to 50% by 24%; Fungus-proof antisepsis is functional.
Cunninghamia lanceolata process material: utilize high activity high osmosis resin type timber reinforced modifier of the present invention and " type of respiration " to flood control technology, can effectively get through the infiltration lanes such as China fir pit, the situations such as visible China fir bordered pit edge is destroyed under SEM ESEM, the situation such as visible China fir aspirated pit recovery under TEM transmission electron microscope; After process, timber rate of body weight gain reaches 32%, moisture content 8%, and density is by 0.352g/cm before treatment
3increase to 0.590g/cm
3; Anti-swollen rate can promote more than 53%; Deflection Modulus of Elasticity increases to 7.4Gpa by 4.9Gpa; Bending strength increases to 79.3Mpa by 47.7Mpa; Compression strength increases to 44.2Mpa by 22.5Mpa; Case hardness increases to 2354N by 1042N; Impact flexibility is by 21.58KJ/m
2increase to 22.96KJ/m
2, condensed steam water burst size of methanal≤0.45mg/L; Oxygen index (OI) rises to 49% by 23%; Fungus-proof antisepsis is functional.
The softwoods such as the Cunninghamia lanceolata after modification of the present invention, poplar, the most outstanding advantage is that density is large, and intensity is high, good toughness, dimensionally stable, fire-retardant, fungus-proof antisepsis, good processability, environmental protection, the high value added product processing such as solid wooden floor board, door and window, furniture, decorative wall panels can be directly used in, and other functions such as water-soluble dye imparting process material dyeing can be added as required, adapt to Vehicles Collected from Market completely to the multifunction demand of improved wood.The present invention may be used on the artificial forest fast growing woods such as poplar, China fir, pine, paulownia, rubber wood timber, greatly promotes its value and added value of product.
In a word, the present invention fully can permeate the timber that difficulty is impregnated, and significantly improves wood performance, through the artificial forest fast growing wood of the method modification, have density large, intensity is high, good toughness, dimensionally stable, fire-retardant, fungus-proof antisepsis, good processability, production environmental protection, result of use is good, added value advantages of higher.
Claims (6)
1. high osmosis resin type timber reinforced modifier and an efficient impregnation process control method, is characterized in that: step is as follows,
(1) proportioning being 1:2 ~ 2.5:0.5 ~ 1.0:0.2 ~ 1.0 according to melamine, formaldehyde, methyl alcohol, urea mol ratio is got the raw materials ready, and flexibilizer addition is 10% ~ 30% of melamine;
(2) melamine accounting for melamine weight portion 30% ~ 35% is added in reactor with the flexibilizer accounting for melamine weight portion 10% ~ 30%, heat up and stir, solution ph is regulated to be 4.5 ~ 6.0 with acetic acid, be warming up to 80 ~ 90 DEG C, react 60 ~ 90 minutes, obtain melamine and flexibilizer mixed liquor;
(3) reactor is reduced temperature to 60 DEG C, add formaldehyde and remaining melamine, regulate solution ph to be 8.0 ~ 9.0 with concentration 20% sodium hydroxide solution, temperature controls at 70 ~ 80 DEG C, react 40 ~ 60 minutes, obtain the melamine resin mixed liquor that etherificate is toughness reinforcing;
(4) in the melamine resin mixed liquor that etherificate is toughness reinforcing, the urea accounting for weight of urea part 80% ~ 85% and whole methyl alcohol is added, solution ph is regulated to be 11.5 ~ 12.5 with concentration 40% sodium hydroxide solution, be warming up to 65 ~ 75 DEG C, react 60 minutes, reduce temperature to 60 ~ 62 DEG C, add residue urea, regulate solution pH value to be 7.0 ~ 8.0 with concentration 10% hydrochloric acid solution, continue reaction, obtain the mixed liquor of the toughness reinforcing melamine resin of etherificate and Lauxite;
(5) when reactant liquor and water to mix multiple be 1:5 ~ 10 time, be cooled to 30 ~ 60 DEG C, add the polymerization inhibitor of the mixeding liquid volume 5% ~ 7% accounting for the toughness reinforcing melamine resin of etherificate and Lauxite, reduce below temperature to 40 DEG C, be enhanced and protect tough modifier;
(6) tough modifier is protected in enhancing to add water, be deployed into the aqueous solution that mass percent is 10% ~ 30%, add the fire retardant accounting for aqueous solution volume 1% ~ 10% and the fungusproof anti-corrosion agent accounting for aqueous solution volume 0.05% ~ 5%, mix, obtain high osmosis resin type timber reinforced modifier;
(7) by moisture content be 10% or following artificial forest wood insert in airtight impregnation process tank, vacuumize and make negative pressure in tank be-0.08 ~-0.10MPa, keep 30 ~ 60 minutes; Utilize the suction function in impregnation process tank to be strengthened by Thief zone high activity resin type timber protect tough modifier injection process tank and fully flood timber, remove vacuum, in tank body, apply the air pressure of 0.4 ~ 1.2MPa, keep 1 ~ 4 hour;
(8) remove impregnation process pressure tank, vacuumize and make negative pressure in tank be-0.08 ~-0.10MPa, keep 30 ~ 60 minutes; Remove vacuum, in tank body, apply the air pressure of 0.4 ~ 1.2MPa, keep 1 ~ 4 hour; With identical or in scope different pressure and time-interleavedly carry out vacuumizing, release, pressurization, pressurize, stress-relief process, amount to 2 ~ 5 times;
(9) pressure of impregnation process tank is removed, remaining high osmosis resin type timber reinforced modifier is discharged, collected and reuse, take out the timber through impregnation process, piling, gas is done to moisture content less than 50%, then carries out kiln drying, baking temperature 40 ~ 160 DEG C, 7 ~ 17 days drying times, finally obtain the improved wood that moisture content is 8% ~ 12%.
2. by a kind of high osmosis resin type timber reinforced modifier according to claim 1 and efficient impregnation process control method, it is characterized in that: described flexibilizer is the one in polyethylene glycol, polysiloxanes, polyvinyl alcohol, diethylene glycol (DEG), polypropylene glycol glycidol ether, or multiple combination.
3., by a kind of high osmosis resin type timber reinforced modifier according to claim 1 and efficient impregnation process control method, it is characterized in that: described polymerization inhibitor gathers the combination for one or more in ethylene glycol, dipropylene glycol, diethylene glycol (DEG), epoxy propane butyl ether.
4., by a kind of high osmosis resin type timber reinforced modifier according to claim 1 and efficient impregnation process control method, it is characterized in that: described fire retardant is one or more the combination in boric acid, borax, diammonium hydrogen phosphate, ammonium dihydrogen phosphate (ADP), low-polymerization-dammonium ammonium polyphosphate.
5., by a kind of high osmosis resin type timber reinforced modifier according to claim 1 and efficient impregnation process control method, it is characterized in that: described fungusproof anti-corrosion agent is one or more the combination in boric acid, borax, ammoniacal copper quaternary, Tebuconazole, propiconazole, Cyproconazole, Boron tribromide, DDAC, trimethoxy silica-based propyl group-octadecyldimethyl ammonium chloride.
6. by a kind of high osmosis resin type timber reinforced modifier according to claim 1 and efficient impregnation process control method, it is characterized in that: described artificial forest wood is the poplar of artificial growth, China fir, pine, paulownia, rubber wood timber, or other fast growing wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510979285.2A CN105563579B (en) | 2015-12-23 | 2015-12-23 | A kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510979285.2A CN105563579B (en) | 2015-12-23 | 2015-12-23 | A kind of high osmosis resin type timber reinforced modifier and efficient impregnation process control method |
Publications (2)
| Publication Number | Publication Date |
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| CN105563579A true CN105563579A (en) | 2016-05-11 |
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| CN106279595A (en) * | 2016-08-01 | 2017-01-04 | 浙江新华新材料科技有限责任公司 | Preparation of urea-formaldehyde resin and Lauxite preparation reactor |
| CN106393358A (en) * | 2016-10-11 | 2017-02-15 | 阜阳市伟叶家具有限公司 | Fast growing wood compound modifier capable of enhancing light aging resistance |
| CN106393360A (en) * | 2016-10-11 | 2017-02-15 | 阜阳市伟叶家具有限公司 | Fast growing wood modifier capable of achieving antibacterial performance synergetic enhancement through copper ions and chitosan |
| CN107160510A (en) * | 2017-07-04 | 2017-09-15 | 久盛地板有限公司 | Solid wood ground heating floor impregnates modification process with timber microwave |
| CN107856160A (en) * | 2017-11-13 | 2018-03-30 | 久盛地板有限公司 | The modified fast growing wood ground heating solid wooden floor board processing technology of dipping |
| CN108453853A (en) * | 2017-10-17 | 2018-08-28 | 徐州顺平生物科技有限公司 | A kind of high fire-retardance timber |
| CN108656273A (en) * | 2018-06-08 | 2018-10-16 | 阜南县宏达工艺品厂 | A kind of dyeing treatment process of wicker plaiting article bark raw material |
| CN109159228A (en) * | 2018-10-10 | 2019-01-08 | 马鞍山和春文化传媒有限公司 | A kind of corrosion-resistant outdoor billboard plank |
| CN109693283A (en) * | 2019-03-12 | 2019-04-30 | 北京林业大学 | A kind of method that resin pretreatment timber prepares functional timber |
| CN110181632A (en) * | 2019-05-22 | 2019-08-30 | 中国林业科学研究院木材工业研究所 | A method of timber is carried out with nano-cellulose to reinforce closure |
| CN110450252A (en) * | 2019-09-11 | 2019-11-15 | 中国林业科学研究院木材工业研究所 | Application and preparation method of the multi-functional environment-protection without urea formaldehyde timber pickling modifying agent |
| CN111844302A (en) * | 2020-08-06 | 2020-10-30 | 衡东欧慕定制家私有限公司 | Method for processing solid wood furniture plate |
| CN111906871A (en) * | 2020-08-14 | 2020-11-10 | 山东亿利优材技术有限公司 | Wood reinforcing, toughening and flame-retardant modifier and preparation method thereof |
| CN113427589A (en) * | 2021-06-05 | 2021-09-24 | 亚振家居股份有限公司 | Treatment process applied to size stability improvement of rare hardwood |
| CN114083631A (en) * | 2021-11-17 | 2022-02-25 | 广东大自然家居科技研究有限公司 | Impregnation modification treatment method of solid wood floor for floor heating |
| CN114589775A (en) * | 2022-03-08 | 2022-06-07 | 福建农林大学 | Impregnation process in production process of container bottom plate |
| CN116214654A (en) * | 2023-02-08 | 2023-06-06 | 千年舟新材科技集团股份有限公司 | Fast-growing wood reinforcing process |
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| JP2005288956A (en) * | 2004-04-02 | 2005-10-20 | Takeji Motai | Method for converting woody material to board |
| CN101664945A (en) * | 2009-07-17 | 2010-03-10 | 中国林业科学研究院木材工业研究所 | Strengthening and flame-retardant modified artificial forest wood and preparation method thereof |
| CN103817757A (en) * | 2013-12-11 | 2014-05-28 | 中国林业科学研究院木材工业研究所 | Method for improving and modifying palm rattan |
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Cited By (20)
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| CN106279595A (en) * | 2016-08-01 | 2017-01-04 | 浙江新华新材料科技有限责任公司 | Preparation of urea-formaldehyde resin and Lauxite preparation reactor |
| CN106393358A (en) * | 2016-10-11 | 2017-02-15 | 阜阳市伟叶家具有限公司 | Fast growing wood compound modifier capable of enhancing light aging resistance |
| CN106393360A (en) * | 2016-10-11 | 2017-02-15 | 阜阳市伟叶家具有限公司 | Fast growing wood modifier capable of achieving antibacterial performance synergetic enhancement through copper ions and chitosan |
| CN107160510A (en) * | 2017-07-04 | 2017-09-15 | 久盛地板有限公司 | Solid wood ground heating floor impregnates modification process with timber microwave |
| CN107160510B (en) * | 2017-07-04 | 2019-03-19 | 久盛地板有限公司 | Solid wood ground heating floor timber microwave-dipping modification process |
| CN108453853A (en) * | 2017-10-17 | 2018-08-28 | 徐州顺平生物科技有限公司 | A kind of high fire-retardance timber |
| CN107856160A (en) * | 2017-11-13 | 2018-03-30 | 久盛地板有限公司 | The modified fast growing wood ground heating solid wooden floor board processing technology of dipping |
| CN108656273A (en) * | 2018-06-08 | 2018-10-16 | 阜南县宏达工艺品厂 | A kind of dyeing treatment process of wicker plaiting article bark raw material |
| CN109159228A (en) * | 2018-10-10 | 2019-01-08 | 马鞍山和春文化传媒有限公司 | A kind of corrosion-resistant outdoor billboard plank |
| CN109693283A (en) * | 2019-03-12 | 2019-04-30 | 北京林业大学 | A kind of method that resin pretreatment timber prepares functional timber |
| CN110181632A (en) * | 2019-05-22 | 2019-08-30 | 中国林业科学研究院木材工业研究所 | A method of timber is carried out with nano-cellulose to reinforce closure |
| CN110450252A (en) * | 2019-09-11 | 2019-11-15 | 中国林业科学研究院木材工业研究所 | Application and preparation method of the multi-functional environment-protection without urea formaldehyde timber pickling modifying agent |
| CN111844302A (en) * | 2020-08-06 | 2020-10-30 | 衡东欧慕定制家私有限公司 | Method for processing solid wood furniture plate |
| CN111906871A (en) * | 2020-08-14 | 2020-11-10 | 山东亿利优材技术有限公司 | Wood reinforcing, toughening and flame-retardant modifier and preparation method thereof |
| CN111906871B (en) * | 2020-08-14 | 2022-01-14 | 潍坊恒远新材料科技有限公司 | Wood reinforcing, toughening and flame-retardant modifier and preparation method thereof |
| CN113427589A (en) * | 2021-06-05 | 2021-09-24 | 亚振家居股份有限公司 | Treatment process applied to size stability improvement of rare hardwood |
| CN114083631A (en) * | 2021-11-17 | 2022-02-25 | 广东大自然家居科技研究有限公司 | Impregnation modification treatment method of solid wood floor for floor heating |
| CN114589775A (en) * | 2022-03-08 | 2022-06-07 | 福建农林大学 | Impregnation process in production process of container bottom plate |
| CN116214654A (en) * | 2023-02-08 | 2023-06-06 | 千年舟新材科技集团股份有限公司 | Fast-growing wood reinforcing process |
| CN116214654B (en) * | 2023-02-08 | 2024-03-29 | 千年舟新材科技集团股份有限公司 | Fast-growing wood reinforcing process |
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