CN103213180A - Strengthening agent for wooden relics, and preparation method and application thereof - Google Patents
Strengthening agent for wooden relics, and preparation method and application thereof Download PDFInfo
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Abstract
Belonging to the technical field of cultural relics preservation and restoration, the invention discloses a strengthening agent for wooden relics, and a preparation method and application thereof to reinforcement of wooden relics. The consolidant provided by the invention comprises 10-15 parts of rosin, 5-10 parts of shellac and 75-85 parts of solvent. The preparation method comprises: mixing rosin and shellac together, and dissolving the mixture in the solvent. The reinforcement method includes steps of: solvent replacement, consolidant penetration and drying; and for a reinforcement object in dark color a decolorizing step is also included. Tests prove that the consolidant can effectively reduce hygroscopicity of the wooden relics and improve corrosion resistance, and has large treatment depth and no protection dead angle; the preparation method of the consolidant is simple, and has strong technological adaptability; and the reinforcement method can effectively improve the physical and mechanical properties of the wood relics, and the reinforced wooden relics gains excellent aging resistance. In addition, the consolidant and the reinforcement method have excellent reversibility, and are applicable to reinforcement treatment on various wooden relics.
Description
Technical field
The invention belongs to historical relic's protection and repair technical field, be specifically related to the preparation method and the application in wooden cultural relic is reinforced thereof of a kind of wooden cultural relic strengthening agent, strengthening agent.。
Background technology
Protection at modern archaeology field wooden cultural relic is aspect very important one.The wooden cultural relic of archaeological excavation, underground owing to being in for a long time, go through the erosion in very long years, the institutional framework of timber, chemical composition, physicochemical property etc. all have been subjected to great destruction.Be unearthed back as untimelyly carry out relevant treatment or deal with improperly of these historical relics, gently then dry and cracked, heavy then distortion and weathering disappearance.Continue to damage for exempting from after these historical relics are unearthed, can also be used for the exhibition of being unearthed simultaneously, must fill to reinforce to the wooden cultural relic that is unearthed and wait protection to handle.Therefore, to protect these wooden cultural relics are important research project to science.
The strengthening agent that current wooden cultural relic reinforcement protection is commonly used has gum dammar, frankincense gum, polyethylene glycol, propylene and metering system compound, organosilicon polymer, formaldehyde resin etc.But effect is unsatisfactory, has variety of issue.As early being used for the alum of wood protection, its permeability a little less than, and there is the release of sulfuric acid the timber inside of processings of using, this shows that the wooden cultural relic acidity after the alum processing is bigger, to such an extent as to the remaining lignin in inside may be degraded; After the polyethylene glycol that is employed, though polyethylene glycol is reversible, but this material can be in processed object inside along with the time cracking of degrading at random, less stable, as the Sweden vasa warship of handling with polyethylene glycol, color is darker, and is closely pitch-black, texture is unclear, has lost the natural colored of timber; Develop carbamide (Kauramin) method in Germany, though advantages such as that carbamide has is stable, soluble in water, intensity big, good endurance, the original color and lusters of maintenance object, the timber after reinforcing is more crisp, frangible, and this process is irreversible.
Therefore, be necessary very much to develop and a kind ofly can effectively reduce the hygroscopicity of wooden cultural relic, can improve its rotproofness and physico-mechanical properties again; And it is big to handle the degree of depth, and the back good reversibility is handled at unshielded dead angle; Simultaneously, the preparation method is simple and easy to do, and Technological adaptability is good, and requirements of one's work are repaired, protected to wooden cultural relic strengthening agent of new generation easy to use to satisfy historical relic.
Summary of the invention
In order to remedy the deficiencies in the prior art, first purpose of the present invention is to provide a kind of wooden cultural relic strengthening agent; Second purpose is to provide the preparation method of described strengthening agent; The 3rd purpose is to provide described wooden cultural relic strengthening agent to be applied to the method that wooden cultural relic is reinforced.
First purpose of the present invention is achieved in that a kind of wooden cultural relic strengthening agent, and in weight portion, described strengthening agent contains: 75 ~ 85 parts of 5 ~ 10 parts of 10 ~ 15 parts of rosin, shellac and solvents.
Second purpose of the present invention is to realize like this, a kind of preparation method of wooden cultural relic strengthening agent, specifically may further comprise the steps: measure rosin and shellac by formula rate, under 10 ~ 40 ℃, be dissolved in the solvent together after the mixing, fully get the mixed solution of rosin and shellac after the dissolving, promptly described wooden cultural relic strengthening agent.
The 3rd purpose of the present invention is achieved in that and a kind of described wooden cultural relic strengthening agent is applied to the method that wooden cultural relic is reinforced, and comprises solvent exchange, strengthening agent infiltration, drying process, specifically may further comprise the steps:
A, solvent exchange: wooden cultural relic that will be to be reinforced is soaked in the dehydrating agent under 10 ~ 40 ℃, changed the primary dewatering agent every 0.5 ~ 1 hour, per 12 cubic centimeter volume are handled 3 ~ 4 times, then wooden cultural relic is immersed in that to soak its dehydrated dose of 2 ~ 3 angel in the dehydrating agent saturated, the weight of wooden cultural relic no longer changes;
B, strengthening agent infiltration: dehydrated dose of saturated wooden cultural relic is immersed in the strengthening agent under 10 ~ 40 ℃, after the sealing, handle 4 ~ 6 days standard according to per 12 cubic centimeter volume, be dipped to wooden cultural relic and be reinforced agent and fully permeate, the weight of wooden cultural relic no longer changes;
C, drying: will be reinforced wooden cultural relic that agent fully permeates and under 10 ~ 40 ℃, be dried to wooden cultural relic weight and no longer change and get final product.
Evidence: wooden cultural relic strengthening agent of the present invention is owing to contain rosin in the prescription, rosin is made up of a series of resin acids, as abietic acid, levopimaric acid, neoabietic acid, palustric acid etc., have good hydrophobicity, contained in addition abietic acid has multiple biologically actives such as antibiotic, antiviral.Adopt suitable rosin to handle timber, can seal the free hydroxyl group in the timber, thereby reduce the wettability power of timber, simultaneously owing to reduced the hygroscopicity of timber, water content in the timber do not satisfy microorganisms such as domestomycetes existence, multiply necessary moisture condition, thereby improve the preservation of timber against decay ability.
The shellac filming performance is good, and its film forming has excellent waterproof, protection against the tide, acid-proof, grease proofing characteristic.The main component lac resin of shellac has tensile strength, wearability, resilience and hardness preferably, the lac resin product is admixed to does filler in the abietic resin, can effectively improve the intensity and the hardness of wooden cultural relic, and antiacid, the oil resistivity of wooden cultural relic etc.
In addition, rosin and shellac in the wooden cultural relic strengthening agent prescription of the present invention are all natural resin, also have wide material sources, nontoxic, the light advantages such as the original texture of wooden cultural relic that do not hide of color and luster.
Wooden cultural relic reinforcement means of the present invention is owing to adopted open cell process that pending wooden cultural relic is handled, satisfying under the prerequisite of consolidation effect, effectively saved the consumption of strengthening agent, help environmental protection on the one hand, help reducing reinforcement cost on the other hand, also help the weight that alleviates processing back wooden cultural relic.
Wooden cultural relic reinforcing process of the present invention is reversible, only needs with organic solvent rosin and shellac stripping are got final product when wooden cultural relic need be done other processing, has solved wooden cultural relic protection problem more in the future.The preparation method of wooden cultural relic strengthening agent of the present invention is simple and easy to do, Technological adaptability is strong.Wooden cultural relic reinforcement means of the present invention can effectively improve the indexs such as basic density, parallel-to-grain compressive strength and drying shrinkage of wooden cultural relic.For example, the ancient pinus khasys that the strengthening agent that is made into 15 parts of rosin, 10 parts of shellac and 75 parts of methyl alcohol was handled, basic density increases by 53.12%, parallel-to-grain compressive strength increases by 16.50%, tangential absolutely dry contract with dry rate reduces by 35.96%.
Description of drawings
Fig. 1 is the wooden cultural relic before the consolidation process
Fig. 2 is the wooden cultural relic after the consolidation process
Fig. 3 is the forward and backward wooden cultural relic comparison diagram of consolidation process
Fig. 4 is the parallel-to-grain compressive strength of the forward and backward wooden cultural relic of consolidation process
Fig. 5 is the absolutely dry contract with dry rate of the forward and backward wooden cultural relic of consolidation process
The specific embodiment
The present invention is further illustrated below in conjunction with embodiment, but never in any form the present invention is limited, and any conversion or improvement based on training centre of the present invention is done all fall into protection scope of the present invention.
A kind of wooden cultural relic strengthening agent is characterized in that, in weight portion, described strengthening agent contains: 75 ~ 85 parts of 5 ~ 10 parts of 10 ~ 15 parts of rosin, shellac and solvents.
Described wooden cultural relic strengthening agent in weight portion, preferably contains: 12 parts of rosin, 8 parts of shellac, 80 parts of solvents.
Described solvent be in methyl alcohol, ethanol, ether, the acetone any or several.
Described solvent is preferably methyl alcohol or ethanol.
A kind of preparation method of wooden cultural relic strengthening agent, specifically may further comprise the steps: measure rosin and shellac by formula rate, under 10 ~ 40 ℃, be dissolved in the solvent together after the mixing, fully get the mixed solution of rosin and shellac after the dissolving, promptly described wooden cultural relic strengthening agent.
Described strengthening agent preparation method preferably will be dissolved in by the rosin that formula rate is measured in the required solvent earlier, treat to add the shellac of measuring by formula rate again after rosin dissolves substantially.
The solution temperature of described rosin, preferred 30 ℃.
The solution temperature of described shellac, preferred 22 ℃.
A kind of described wooden cultural relic strengthening agent is applied to the method that wooden cultural relic is reinforced, comprises solvent exchange, strengthening agent infiltration, drying process, specifically may further comprise the steps:
A, solvent exchange: wooden cultural relic that will be to be reinforced is soaked in the dehydrating agent under 10 ~ 40 ℃, changed the primary dewatering agent every 0.5 ~ 1 hour, per 12 cubic centimeter volume are handled 3 ~ 4 times, then wooden cultural relic is immersed in that to soak its dehydrated dose of 2 ~ 3 angel in the dehydrating agent saturated, the weight of wooden cultural relic no longer changes.
B, strengthening agent infiltration: dehydrated dose of saturated wooden cultural relic is immersed in the strengthening agent under 10 ~ 40 ℃, after the sealing, handle 4 ~ 6 days standard according to per 12 cubic centimeter volume, be dipped to wooden cultural relic and be reinforced agent and fully permeate, the weight of wooden cultural relic no longer changes.
C, drying: will be reinforced wooden cultural relic that agent fully permeates and under 10 ~ 40 ℃, be dried to wooden cultural relic weight and no longer change and get final product.
Described solvent exchange, strengthening agent infiltration, the dry processing all can be carried out under normal pressure.
Described solvent exchange is handled and is preferably carried out under 0.1MPa pressure.
Described strengthening agent infiltration is handled and is preferably increased to maximum pressure 1.4 ~ 1.8MPa earlier, dwell time is per 10000 cubic centimeter volume pressurizes 4 ~ 6 hours, then with the speed step-down of per minute 0.1MPa, under the vacuum of 0.08 ~ 0.09MPa, handled 1.5 ~ 2.5 hours more at last, wait to reinforce strengthening agent in the historical relic with thorough eliminating.Employing is boosted---the infiltration treatment process of pressurize---step-down---vacuum, strengthening agent only is deposited in the cell membrane of wooden cultural relic, and can not remain in the lumen, help saving the consumption of strengthening agent, also help reducing the weightening finish of reinforcing the back wooden cultural relic.
Described dry the processing preferably carried out under 0.1MPa pressure.
Reinforcement means of the present invention is before solvent exchange is handled, can also comprise the decolouring step, with wooden cultural relic to be decoloured under 45 ~ 75 ℃, be soaked in the decolorizer, change decolorizer one time every 2 ~ 3h, after the color of decolorizer no longer deepens, wooden cultural relic is soaked in the distilled water, clean 3 ~ 4 times the flush away decolorizer.
Preferred 60 ℃ of described bleaching temperature.
Described decolorizer is 2 ~ 5% oxalic acid, hypophosphorous acid or ascorbic acid.
Described decolorizer can also be 2 ~ 5% hydrogen peroxide or sodium chlorite.
The moisture content of described wooden cultural relic is 0 ~ 300%.
Solvent during described dehydrating agent is preferably filled a prescription with strengthening agent is with a kind of solvent.
Described solvent exchange and strengthening agent infiltration are handled and are preferably carried out in enclosure space.
Described enclosure space can seal treatment trough with freshness protection package or preservative film or plastic sheeting.
Embodiment 1
The strengthening agent prescription: by weight, 15 parts of rosin, 10 parts of shellac, 75 parts of methyl alcohol.
Strengthening agent preparation: measure rosin and shellac by formula rate, under 20 ℃, be dissolved in together after the mixing in the solvent, fully dissolve the mixed solution of rosin and shellac, promptly described wooden cultural relic strengthening agent.
The object of consolidation process: the ancient pinus khasys of being unearthed in geo ruins, Jianchuan, apart from modern about 3000 ~ 4000 years, surperficial rotten serious cracking, color is darker, and is closely pitch-black, first moisture content 200%, size: 20*20*30mm.
Consolidation process: because the pending rotten degree of historical relic is more serious, color is dark in pitch-black, the preliminary treatment of therefore at first decolouring before reinforcing.Wooden cultural relic to be decoloured under 45 ℃ of normal pressures, is soaked in 5% the ascorbic acid and decolours, changed one time decolorizer every 3 hours, after the color of decolorizer no longer deepens, wooden cultural relic is soaked in the distilled water, clean 3 times the flush away decolorizer.
Then, wooden cultural relic to be reinforced is soaked in the methyl alcohol under 30 ℃, changed one time methyl alcohol every 1 hour, it is saturated by methyl alcohol wooden cultural relic to be soaked 2 angels after handling 3 times in methyl alcohol, and weight no longer changes.Then, the wooden cultural relic after the dehydration is immersed in the strengthening agent, handled 5 days down at 30 ℃ the sealing back.At last, got final product in dry 5 days down at 30 ℃ being reinforced the wooden cultural relic that agent fully permeates.
Embodiment 2
The strengthening agent prescription: by weight, 12 parts of rosin, 8 parts of shellac, 80 parts of methyl alcohol.
Strengthening agent preparation: measure rosin and shellac by formula rate, under 30 ℃, be dissolved in together after the mixing in the solvent, fully dissolve the mixed solution of rosin and shellac, promptly described wooden cultural relic strengthening agent.
The object of consolidation process: the ancient pinus khasys of being unearthed in geo ruins, Jianchuan, apart from modern about 3000 ~ 4000 years, surperficial rotten serious cracking, color is darker, and is closely pitch-black, first moisture content 80%, size: 20*20*30mm.
Consolidation process: because the pending rotten degree of historical relic is more serious, color is dark in pitch-black, the preliminary treatment of therefore at first decolouring before reinforcing.Wooden cultural relic to be decoloured under 75 ℃ of normal pressures, is soaked in 2% the oxalic acid and decolours, changed one time decolorizer every 2.5 hours, after the color of decolorizer no longer deepens, wooden cultural relic is soaked in the distilled water, clean 3 times the flush away decolorizer.
Then, wooden cultural relic to be reinforced is soaked in the methyl alcohol under 40 ℃, changed one time methyl alcohol every 0.5 hour, it is saturated by methyl alcohol wooden cultural relic to be soaked 3 angels after handling 4 times in methyl alcohol, and weight no longer changes.Then, the wooden cultural relic after the dehydration is immersed in the strengthening agent, handled 4 days down at 40 ℃ the sealing back.At last, got final product in dry 3 days down at 40 ℃ being reinforced the wooden cultural relic that agent fully permeates.
Embodiment 3
The strengthening agent prescription: by weight, 10 parts of rosin, 5 parts of shellac, 85 parts of methyl alcohol.
Strengthening agent preparation: measure rosin and shellac by formula rate, under 40 ℃, be dissolved in together after the mixing in the solvent, fully get the mixed solution of rosin and shellac after the dissolving, promptly described wooden cultural relic strengthening agent.
The object of consolidation process: the ancient pinus khasys of being unearthed in geo ruins, Jianchuan, apart from modern about 3000 ~ 4000 years, surperficial rotten serious cracking, color is darker, and is closely pitch-black, first moisture content 100%, size: 20*20*30mm.
Consolidation process: because the pending rotten degree of historical relic is more serious, color is dark in pitch-black, the preliminary treatment of therefore at first decolouring before reinforcing.Wooden cultural relic to be decoloured under 60 ℃ of normal pressures, is soaked in 3% the oxalic acid and decolours, changed one time decolorizer every 2 hours, after the color of decolorizer no longer deepens, wooden cultural relic is soaked in the distilled water, clean 3 times the flush away decolorizer.
Then, wooden cultural relic to be reinforced is soaked in the methyl alcohol under 20 ℃, changed one time methyl alcohol every 0.5 hour, it is saturated by methyl alcohol wooden cultural relic to be soaked 3 angels after handling 4 times in methyl alcohol, and weight no longer changes.Then, the wooden cultural relic after the dehydration is immersed in the strengthening agent, handled 6 days down at 20 ℃ the sealing back.At last, got final product in dry 7 days down at 20 ℃ being reinforced the wooden cultural relic that agent fully permeates.
Embodiment 4---Performance Detection through the wooden cultural relic of consolidation process
(1) Density Detection
Wooden cultural relic to be reinforced among experimental subjects: the embodiment 1,2
Experimental technique: at first, the full water quality m1 of wooden cultural relic before the weighing solvent exchange is handled; By the GB1931-1991 Method for determination of the moisture content of wood wooden cultural relic is dried to over dry under 103 ± 2 ℃ then, weighing gets quality m2; Then, according to the method for embodiment 1,2 wooden cultural relic is carried out consolidation process; According to the GB1931-1991 Method for determination of the moisture content of wood wooden cultural relic is dried to over dry under 103 ± 2 ℃ at last, weighing gets quality m4.
The basic density of wooden cultural relic calculates by following formula that (this formula comes from Smith before reinforcing, D. M. 1954. Maximum moisture content method for determining specific gravity of small wood samples. Rept. No. 2014, Forest Products Laboratory): ρ=1/ ((m1-m2)/m2+1/1.53)
The basic density of reinforcing the back wooden cultural relic calculates by following formula that (this formula comes from Smith, D. M. 1954. Maximum moisture content method for determining specific gravity of small wood samples. Rept. No. 2014, Forest Products Laboratory): ρ=1/ ((m1-m4)/m4+1/1.53)
Basic density was 0.314g/cm before wooden cultural relic was reinforced among experimental result: the embodiment 1
3, reinforcing the back basic density is 0.481 g/cm
3, increased by 53.12%; Basic density was 0.309 g/cm before wooden cultural relic was reinforced among the embodiment 2
3, reinforcing the back basic density is 0.437 g/cm
3, increased by 41.40%.The basic density that adopts strengthening agent of the present invention and reinforcement means can effectively improve wooden cultural relic is described.
(2) intensity detection
Reinforce the wooden cultural relic of finishing among experimental subjects: the embodiment 1,2
Experimental technique: implement according to State Standard of the People's Republic of China GB1935-1991 Method of testing in compressive strength parallel to grain of wood.
The average parallel-to-grain compressive strength of reinforcing the wooden cultural relic of finishing among experimental result: the embodiment 1,2 has increased by 16.50%, 21.06% respectively.
(3) drying shrinkage detects
Reinforce the wooden cultural relic of finishing among experimental subjects: the embodiment 1,2
Experimental technique: implement according to State Standard of the People's Republic of China GB1932-1991 Method for determination of the shrinkage of wood.
The tangential absolutely dry contract with dry rate of reinforcing the wooden cultural relic of finishing among experimental result: the embodiment 1,2 has reduced by 35.96%, 50.80% respectively.
Reinforce the wooden cultural relic of finishing among experimental subjects: the embodiment 1,2
Experimental technique: be soaked in respectively in the methanol solution reinforcing the wooden cultural relic of finishing among the embodiment 1,2, more renewed methyl alcohol every 0.5 day.The wooden cultural relic of embodiment 1 soaked 5 days, and the wooden cultural relic of embodiment 2 soaked after 5 days, will be dried to over dry under 103 ± 2 ℃ against the wooden cultural relic after handling by the GB1931-1991 Method for determination of the moisture content of wood, and weighing gets quality m5.Relatively the over dry quality m5 after over dry quality m2 before the wooden cultural relic consolidation process and contrary the processing judges that according to its difference whether strengthening agent is by whole strippings.
Its m2 value of the wooden cultural relic of experimental result: embodiment 1 and m5 value are respectively 7.235g, 7.262g, and its m2 value of the wooden cultural relic of embodiment 2 and m5 value are respectively 7.948g, 7.971g.Because therefore the difference of m2 and m5 and small can think that strengthening agent of the present invention and reinforcing and processing method invertibity are good.
Claims (10)
1. a wooden cultural relic strengthening agent is characterized in that, in weight portion, described strengthening agent contains: 75 ~ 85 parts of 5 ~ 10 parts of 10 ~ 15 parts of rosin, shellac and solvents.
2. wooden cultural relic strengthening agent as claimed in claim 1 is characterized in that, in weight portion, described strengthening agent contains: 12 parts of rosin, 8 parts of shellac, 80 parts of solvents.
3. as claim 1 or 2 each described wooden cultural relic strengthening agents, it is characterized in that, described solvent be in methyl alcohol, ethanol, ether, the acetone any or several.
4. the preparation method of wooden cultural relic strengthening agent as claimed in claim 1, it is characterized in that, comprise following concrete steps: measure rosin and shellac by formula rate, under 10 ~ 40 ℃, be dissolved in the solvent together after the mixing, fully get the mixed solution of rosin and shellac after the dissolving, promptly described wooden cultural relic strengthening agent.
5. as with the described wooden cultural relic strengthening agent of claim 1 be applied to the method that wooden cultural relic is reinforced, comprise solvent exchange, strengthening agent infiltration, drying process, it is characterized in that, comprise following concrete steps:
A, solvent exchange: wooden cultural relic that will be to be reinforced is soaked in the dehydrating agent under 10 ~ 40 ℃, changed the primary dewatering agent every 0.5 ~ 1 hour, per 12 cubic centimeter volume are handled 3 ~ 4 times, then wooden cultural relic is immersed in that to soak its dehydrated dose of 2 ~ 3 angel in the dehydrating agent saturated, the weight of wooden cultural relic no longer changes;
B, strengthening agent infiltration: dehydrated dose of saturated wooden cultural relic is immersed in the strengthening agent under 10 ~ 40 ℃, after the sealing, handle 4 ~ 6 days standard according to per 12 cubic centimeter volume, be dipped to wooden cultural relic and be reinforced agent and fully permeate, the weight of wooden cultural relic no longer changes;
C, drying: will be reinforced wooden cultural relic that agent fully permeates and under 10 ~ 40 ℃, be dried to wooden cultural relic weight and no longer change and get final product.
6. wooden cultural relic reinforcement means as claimed in claim 5, it is characterized in that, before solvent exchange is handled, also comprise the decolouring step, wooden cultural relic to be decoloured under 45 ~ 75 ℃ of normal pressures, is soaked in the decolorizer, change decolorizer one time every 2 ~ 3h, after the color of decolorizer no longer deepens, wooden cultural relic is soaked in the distilled water, clean 3 ~ 4 times the flush away decolorizer.
7. wooden cultural relic reinforcement means as claimed in claim 6 is characterized in that, described decolorizer is 2 ~ 5% oxalic acid, hypophosphorous acid or ascorbic acid, 2 ~ 5% hydrogen peroxide or sodium chlorite.
8. wooden cultural relic reinforcement means as claimed in claim 5 is characterized in that, the moisture content of wooden cultural relic described to be reinforced is 0-300%.
9. wooden cultural relic reinforcement means as claimed in claim 5 is characterized in that, the solvent during described dehydrating agent is preferably filled a prescription with strengthening agent is with a kind of material.
10. wooden cultural relic reinforcement means as claimed in claim 5 is characterized in that, described solvent exchange and infiltration are handled and preferably carried out in enclosure space.
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| CN104626304A (en) * | 2015-01-28 | 2015-05-20 | 浙江大学 | Outer electric field in-situ reinforcing device and outer electric field in-situ reinforcing method used for saturated wooden cultural relic |
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| CN106985237A (en) * | 2017-04-21 | 2017-07-28 | 雷笑天 | A kind of preparation method of wooden cultural relic dehydration shaping strengthening agent |
| CN108032396A (en) * | 2017-12-15 | 2018-05-15 | 霍山县宇顺竹制品有限公司 | A kind of preparation method for being not easy discoloration bamboo chopsticks |
| CN108189183A (en) * | 2017-07-27 | 2018-06-22 | 北京希凯科技有限公司 | A kind of wooden cultural relic ancient architecture long-acting fire-retardant combination and its flame-proof treatment method |
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| CN111844313A (en) * | 2020-06-09 | 2020-10-30 | 苏州昊昇木驿生物科技有限公司 | Method for dewatering and drying wood |
| CN112621946A (en) * | 2020-12-16 | 2021-04-09 | 南京林业大学 | Decayed wood cultural relic reinforcing agent and decayed wood cultural relic reinforcing treatment method |
| CN115070890A (en) * | 2022-07-07 | 2022-09-20 | 南京林业大学 | Dehydration and reinforcement treatment method for water-saturated wooden cultural relics |
| CN115446937A (en) * | 2022-08-25 | 2022-12-09 | 北京大学 | Atom transfer radical polymerization reinforcement method for wooden cultural relics |
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| CN104626304A (en) * | 2015-01-28 | 2015-05-20 | 浙江大学 | Outer electric field in-situ reinforcing device and outer electric field in-situ reinforcing method used for saturated wooden cultural relic |
| CN105984009A (en) * | 2015-12-24 | 2016-10-05 | 阜南县金地柳木工艺品有限公司 | Wood softening agent containing shell-lac and preparing method of wood softening agent |
| CN106985237A (en) * | 2017-04-21 | 2017-07-28 | 雷笑天 | A kind of preparation method of wooden cultural relic dehydration shaping strengthening agent |
| CN108189183B (en) * | 2017-07-27 | 2019-07-26 | 北京希凯科技有限公司 | A kind of wooden cultural relic ancient architecture long-acting fire-retardant combination and its flame-proof treatment method |
| CN108189183A (en) * | 2017-07-27 | 2018-06-22 | 北京希凯科技有限公司 | A kind of wooden cultural relic ancient architecture long-acting fire-retardant combination and its flame-proof treatment method |
| CN108032396A (en) * | 2017-12-15 | 2018-05-15 | 霍山县宇顺竹制品有限公司 | A kind of preparation method for being not easy discoloration bamboo chopsticks |
| CN109112021A (en) * | 2018-06-25 | 2019-01-01 | 广东科茂林产化工股份有限公司 | A kind of preparation method of disproportionated rosin potassium soap |
| CN109719818A (en) * | 2018-12-17 | 2019-05-07 | 隋鸿锦 | The store method of wooden and bamboo historical relic |
| CN110948624A (en) * | 2019-12-25 | 2020-04-03 | 上海五岳木业有限公司 | Furniture antique finishing process |
| CN111844313A (en) * | 2020-06-09 | 2020-10-30 | 苏州昊昇木驿生物科技有限公司 | Method for dewatering and drying wood |
| CN112621946A (en) * | 2020-12-16 | 2021-04-09 | 南京林业大学 | Decayed wood cultural relic reinforcing agent and decayed wood cultural relic reinforcing treatment method |
| CN115070890A (en) * | 2022-07-07 | 2022-09-20 | 南京林业大学 | Dehydration and reinforcement treatment method for water-saturated wooden cultural relics |
| CN115446937A (en) * | 2022-08-25 | 2022-12-09 | 北京大学 | Atom transfer radical polymerization reinforcement method for wooden cultural relics |
| CN115446937B (en) * | 2022-08-25 | 2023-04-14 | 北京大学 | Atom transfer radical polymerization reinforcement method for wooden cultural relics |
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