CN106799781B - A kind of waterlogged wooden culture relics reinforcement means using nano-cellulose - Google Patents
A kind of waterlogged wooden culture relics reinforcement means using nano-cellulose Download PDFInfo
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- CN106799781B CN106799781B CN201710094534.9A CN201710094534A CN106799781B CN 106799781 B CN106799781 B CN 106799781B CN 201710094534 A CN201710094534 A CN 201710094534A CN 106799781 B CN106799781 B CN 106799781B
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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
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
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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
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
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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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
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- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
A kind of waterlogged wooden culture relics reinforcement means using nano-cellulose disclosed by the invention, strengthening agent is obtained after nano-cellulose is mixed with filler, by waterlogged wooden culture relics through decoloration, desalination, be put into strengthening agent impregnate, drying reinforce.Waterlogged wooden culture relics bright that the present invention is handled, stability is good, is not easy that salinity is precipitated, particularly secondary acid degradation will not occur.The present invention effectively can be cleared up and be protected to waterlogged wooden culture relics, and the timber after dry reinforcing can be stablized in pH neutrality, effectively acid corrosion and salt be inhibited to analyze, and significantly enhance the mechanical strength of the rotten timber of height.
Description
Technical field
The present invention relates to the reinforcement means of waterlogged wooden culture relics, and in particular to based on different-shape and surface carboxyl groups official
Can the strengthening agent of nano-cellulose of group prepare, and it is high to water content, cell wall moisture content is high, degradation is serious, mechanical strength is poor
Waterlogged wooden culture relics processing method.
Background technology
The protection of wooden cultural relic is the emphasis and difficult point in archaeology field, and unearthed relics and marine bed are salvaged in some coastal waters
The destiny of unearthed relics is still precarious.When waterlogged wooden culture relics are unearthed, softwood moisture content is 100%-500%, broad-leaved
Material moisture content is then up to 200%-1000%, and institutional framework, chemical composition, mechanical property of timber etc. are all greatly broken
It is bad.The main problem that the protection and reparation of waterlogged wooden culture relics face, which focuses on 1) Fe ionic catalysis, makes sulfate formation sulfuric acid,
To cause wood chemistry to degrade, its structure is made further to degrade；2) cell wall of waterlogged wooden culture relics is through life over the past thousands of years
Object is degraded and chemical degradation, and oxidation is serious, it is made to lose mechanical strength and color and luster, it is difficult to differentiate original pattern, line quarter etc.
Information.Currently, these problems can be efficiently solved without a kind of method of historical relic's protection.And after these waterlogged wooden culture relics are unearthed
If carrying out relevant treatment or processing not in time, improper measures are gently then dry and cracked, and heavy then deformation even weathering disappears.Therefore, wooden
The protection of historical relic especially waterlogged wooden culture relics has great importance with reparation.
It is domestic it is most widely used be Hubei Provincial Museum Mr. Chen Zhonghang invention, Jingzhou Cultural Relics Protection Center Wu along it is clear first
Raw improved compound glyoxal method, glyoxal is monomer, is polymerize by initiator, is reinforced to wood cell wall, right
Lumen is filled, and plays the role of dehydration setting.Compound glyoxal is to have added polymerization inhibitor and bleeding agent inside glyoxal,
Later stage carries out initiation polymerization by initiator, satisfies sealing wax wood bamboo device to ancient times in this way and simple wooden tablets or slips for writing is carried out dehydrating
Afterwards, device shape and color are substantially without mutation, and the shrinking percentage of implements is less than 1%, and the requirement of late protection condition is relatively low, is protected convenient for long-term
It deposits.Since the method forms chemical covalent bonds, so the more difficult requirement that meets in historical relic's protection " reversible " and can restore completely.
And another common higher alcohol method for strengthening, it is by the cetanol (CH that is 16 by carbon number3(CH2)14CH2OH) or carbon number is
18 stearyl alcohol (CH3(CH2)14CH2OH after the hydrone) satisfied by methanol replacement in water wood historical relic, then it is molten with higher alcohol methanol
Liquid is into line replacement methanol removal.The method can obtain the preferable wooden cultural relic of device, but its reinforcing process and reversible remove
Journey will use a large amount of methanol, operational hazards and the generation of toxic organic steam.
Currently, most of processing of waterlogged wooden culture relics depends on polyethylene glycol (PEG) in the world.PEG is as polyhydroxy
Hydrocarbon polymer, a part can enter cell wall, and substitution combines the hydroxyl on water and cell wall grape sugar chain with hydrogen bond formation knot
It closes, another part then enters lumen instead of water as swelling agent, and is deposited in lumen to support cell wall, prevents timber
Make wood shrinkage because cell wall collapses in drying process.Since PEG is soluble easily in water, reinforcing process is reversible, therefore the method is at present
Archaeological circle common method, but macromolecular PEG moisture absorptions are serious, hold faintly acid, and small molecule PEG stability is poor, causes that treated
Wood color is deeper, and concentration is bigger, and color and luster intensification is more serious, and texture is unclear, loses the natural colored of timber.Meanwhile merely
Use PEG, cannot solve to be unearthed the problems such as catalysis acid corrosion of Fe ions and marine bed salt are precipitated in ancient timber.
Invention content
The purpose of the present invention is to solve the oxidations of existing waterlogged wooden culture relics seriously, loses mechanical strength and color and luster,
It is not disposable, it is light then dry and cracked after processing, heavy then deformation even weathering disappearance the problems such as.Nanowire is utilized the present invention provides a kind of
Tie up the waterlogged wooden culture relics reinforcement means of element.
The technical scheme is that：
A kind of waterlogged wooden culture relics reinforcement means using nano-cellulose, after nano-cellulose is mixed with filler
To strengthening agent, by waterlogged wooden culture relics through decoloration, desalination, be put into strengthening agent impregnate, drying is reinforced.
Preferably, the filler is polyethylene glycol or/and polysaccharide or/and epoxy resin.
The waterlogged wooden culture relics reinforcement means, steps are as follows：
(1) by after bleaching plant tissue or fiber spin-off be configured to 1wt% dispersion liquids；
(2) periodic acid or organic dibasic acid or acid anhydrides or ammonium persulfate or oxidation is added in the dispersion liquid for obtaining step (1)
Agent after being uniformly dispersed, is warming up to 40-80 DEG C, reaction time 1-40h；
(3) dispersion liquid that step (2) obtains is rinsed with deionized water to neutrality, then with ultrasonic grinder by this point
Then dispersion liquid ultrasound 0.5-2h is configured to the cellulose nanometer fibril solution strengthening agent of a concentration of 0.001%-2%；
(4) polyethylene glycol (PEG) is configured to the solution that molecular weight is 50-40000, and the solution obtained with step (3)
Mixing, obtains the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
(5) after over cleaning will there are various sizes of waterlogged wooden culture relics to be immersed in step step (4) mixed reinforcement
In agent；
(6) processing is dried in the wooden sample that step (5) processing obtains.
Preferably, the waterlogged wooden culture relics reinforcement means, the organic dibasic acid in step (2) includes but not limited to horse
Carry out sour, oxalic acid；Oxidant includes but not limited to Tempo.
Preferably, the waterlogged wooden culture relics reinforcement means, it is two that the drying process described in step (6), which is dried medium,
The critical point drying or supercritical drying of carbonoxide or freeze-drying or vacuum drying oven drying or oven drying are naturally dry
It is dry.
Preferably, the waterlogged wooden culture relics reinforcement means, it is characterised in that：Dispersion liquid is placed in 4 made from step (1)
Storage is preserved at DEG C.
Preferably, the waterlogged wooden culture relics reinforcement means, the cellulose nanometer fibril dispersion liquid that step (3) obtains,
Carboxyl-content is 0.1-2.5mmol/g, and configuration cellulose nanometer fibril liquid quality fraction is 0.01%-1.5%.
Preferably, the waterlogged wooden culture relics reinforcement means, the middle polyglycol solution mass fraction configured of step (4)
For 1%-60%.
Preferably, the waterlogged wooden culture relics reinforcement means, step are handled waterlogged wooden culture relics in (5), institute
The processing stated includes but not limited to：The sundries on surface is removed, sundries includes but not limited to mud；The time for immersing strengthening agent is 2-
150h。
Preferably, the waterlogged wooden culture relics reinforcement means, in step (4) polyglycol solution with step (3)
The solution arrived is with volume ratio 1:1 mixing.
Nano-cellulose is a kind of new material, and grain size is typical 1-dimention nano material between 0.4-100nm
Material.The raw material sources for synthesizing nano-cellulose aerogel are extensive, such as cotton, and plant roots and stems, pericarp, tunicate, software are dynamic
Object shell, some microorganisms etc..These raw materials are biodegradable, nonhazardous, are the maximum natural polymers of yield in the world.Through not
Nano-cellulose prepared by same chemical method, bioanalysis, Mechanical Method, structural unit have high draw ratio.Mechanical strength is up to
135GPa and surface are contained compared with polyfunctional group, such as hydroxyl, carboxyl, sulfonic group.Therefore nano-cellulose provides very high power
Intensity is learned, and color is transparent and has diversified functionality, and more activity are provided to ion chelating and cross-linked polymer
Site.Simultaneously because nano-cellulose has uniform fine nanostructur, the ideal support frame for being cell wall filling, reinforcing
Material.
Nano-cellulose through mixed with the filler of the present invention/crosslinking after obtain the strengthening agent of the present invention, this strengthening agent oozes
Permeability is good, chelates ferric ions and can be not easy that the calcium and magnesium ion removed, mechanics enhancing effect is notable, ingredient is environmentally protective, is easy to protect
It deposits.The present invention by wooden cultural relic by oxalic acid decoloration and simple desalination after, by the methods of vacuum decompression by full water engage in archaeological studies it is wooden
Historical relic is immersed in strengthening agent, and historical relic cell wall can be obtained after fully penetrated by vacuum drying oven drying or natural air drying dry
The wooden cultural relic of dry reinforcing.Obtained wooden cultural relic bright, stability is good, is not easy that salinity is precipitated, particularly will not send out
Raw secondary acid degradation.
The present invention can stablize waterlogged wooden culture relics in pH neutrality, control acid corrosion and salt analyzes, greatly enhance
Waterlogged wooden culture relics can effectively be cleared up and be protected by the mechanical strength of wooden cultural relic.Nanometer in used curing agent
Cellulose comes from natural plant cells wall, will not carry out secondary destruction and damage to wooden cultural relic, and can be according to difference
Historical relic sample amounts change carboxyl-content.
This method can greatly simplify the process flow of existing waterlogged wooden culture relics, be particularly conducive to in marine bed
Wooden cultural relic with high salt, shortens processing time, greatly improves the structural stability of wooden cultural relic, while solving wooden cultural relic
The problem of chemical degradation during protection.
Waterlogged wooden culture relics bright that the present invention is handled, stability is good, is not easy salinity is precipitated, particularly will not
Secondary acid degradation occurs.The present invention effectively can be cleared up and be protected to waterlogged wooden culture relics, the timber meeting after dry reinforcing
Stablize in pH neutrality, effectively acid corrosion and salt is inhibited to analyze, significantly enhances the mechanical strength of the rotten timber of height.This hair
The bright protection and reparation that may be directly applied to waterlogged wooden culture relics greatly simplifies the processing stream of existing full water wood, bamboo, lacquerware historical relic
Journey provides new method for the reinforcing of waterlogged wooden culture relics.
Compared with prior art, the invention has the advantages that：
1. since the nano-cellulose that the present invention uses is environmentally protective, safe, will not satisfy to the reinforcing of preparation water wood
Matter historical relic generates toxicity, and corrosion will not be brought to instrument and equipment, is caused environment pollution.The cellulose of oxidation biological can drop
Solution, can pollute the environment to avoid other polymeric additives.
2. due to the raw material that uses of the present invention be timber, bamboo wood, crops stalk, environment friendly and pollution-free, produce are abundant, honest and clean
Valence is easy to get, and the added value of biological material also can be improved.
3. due to the cellulose of part carboxylated that the method that the present invention uses oxidation obtains, cellulose it is long and
Good dispersion, thus the reinforcing waterlogged wooden culture relics obtained have three-dimensional network cross-linked structure, improve the structure of wooden cultural relic
Stability, while solving the problems, such as chemical degradation during wooden cultural relic protection.
4. the core condensation after the reinforcing used due to the present invention is dry simple common, expensive device need not be added.And
And the strengthening agent used is carboxylic nano-cellulose and polyethylene glycol, it is cheap and easy to get and do not need complicated subsequent processing,
Therefore with low cost experiment green preparation process.
5. the present invention is to prepare to have carboxyl-content adjustable fiber on the basis of carrying out oxidation processes to cellulose
Plain nanofibrils strengthening agent realizes the optimization of structure.
6. the waterlogged wooden culture relics reinforced of the present invention, iron inside the carboxyl chelating of cellulose nanometer fibril timber from
Son alleviates the degradation of waterlogged wooden culture relics, and the excellent skeleton structure after cellulose nanometer fibril filling improves full water wood
The mechanical property of matter historical relic.
7. preparation process of the present invention is simple and safe controllable.
8. what is used in process of the present invention is nearly all Green Chemistry reagent, meet green chemical concept.
9. the method for strengthening agent filling waterlogged wooden culture relics of the present invention can be widely used for Waterlogged artifacts protection.
Description of the drawings
Fig. 1 is the SEM figures for the reinforcing waterlogged wooden culture relics that embodiment 1 obtains；
Fig. 2 is the reinforcing waterlogged wooden culture relics macrograph that embodiment 2 obtains；
Fig. 3 is the unguyed preceding SEM figures of waterlogged wooden culture relics that embodiment 3 obtains；
Fig. 4 is the FTIR figures that embodiment 4 obtains reinforcing waterlogged wooden culture relics；
Fig. 5 is the XRD diagram obtained for reinforcing waterlogged wooden culture relics of embodiment 5.
Specific implementation mode
Following embodiment is merely to illustrate the present invention, but is not limited to the invention scope of the present invention.The technical field
Technician can make the modifications and adaptations of some non-intrinsically safes according to the content of foregoing invention.
Embodiment 1：
1. the bamboo pulp after bleaching is formulated as 1wt% dispersion liquids obtains the thick matter fibers of 1wt% by high-pressure homogeneous method
Plain dispersion liquid；
2. periodic acid is added after, is 1 with cellulose mass ratio：10,60 DEG C are heated to, stops reaction after reacting 2h；
3. being rinsed obtained dispersion liquid repeatedly to neutrality with deionized water, then use ultrasonic grinder (1500W) will
Dispersion liquid ultrasound 0.5h, the cellulose nanometer fibril solution that configuration quality score is 0.05%；
4. the mass fraction for configuring polyethylene glycol to a concentration of 10% solution, and being obtained with step 3 is 0.05%
Cellulose nanometer fibril solution is with 5:1 mixing, obtains the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
5. configuring polyethylene glycol (PEG) to molecular weight is 30000 solution, and is mixed with the solution that step 4 obtains, obtain
To the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
6. a pair waterlogged wooden culture relics are simply cleaned, the full water wood particle for being cut into 2 × 2 × 2cm is several, then
It is dipped in the cellulose nanometer fibril strengthening agent that step 4 mass fraction is 0.05%, obtains possessing adding for specific structure
Gu wooden unit；
7, processing is dried in the full water wood particle of reinforcing that step 5 processing obtains, the drying mode is dry is situated between
Matter is the critical point drying of carbon dioxide.
Embodiment 2：
1. buying the bamboo pulp of bleaching on the market, 80 mesh screens are crushed, are configured to the dispersion liquid of 1wt%, are deposited at 4 DEG C
It puts；
2. taking the above-mentioned dispersion liquids of 400ml, after stirring evenly, maleic acid, the molar ratio 20 with cellulose is added：1, dispersion is equal
90 DEG C are heated to after even, reaction time 120min；
3. being rinsed obtained dispersion liquid repeatedly to neutrality with deionized water, then use ultrasonic grinder (1500W) will
Dispersion liquid ultrasound 1h is configured to the cellulose nanometer fibril solution that mass fraction is 0.1%；
4. the fibre that the mass fraction for configuring polyethylene glycol to a concentration of 25% solution, and being obtained with step 3 is 0.1%
The plain nanofibrils solution of dimension is with 1:1 mixing, obtains the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
5. a pair waterlogged wooden culture relics are simply cleaned, the full water wood particle for being cut into 2 × 2 × 2cm is several, then
It is dipped in the strengthening agent of step 4 cellulose nanometer fibril and polyethylene glycol, obtains reinforcing full water wooden unit；
6. processing is dried in the full water wood particle of reinforcing that step 5 processing obtains, the drying mode is freezing temperature
The freeze-drying that degree is -35 DEG C.
Embodiment 3：
1. buying absorbent cotton on the market, 80 mesh screens are crushed, are configured to the dispersion liquid of 1wt%, are stored at 4 DEG C；
2. taking the above-mentioned dispersion liquids of 400ml, it is stirring evenly and then adding into Tempo0.064g and NaBr0.4g, is uniformly dispersed again
2MNaClO is added, the PH for controlling dispersion liquid using 0.5MNaOH reacts 1h, the rear 25ml ethyl alcohol that is added terminates reaction 10.2；
3. being rinsed obtained dispersion liquid repeatedly to neutrality with deionized water, then use ultrasonic grinder (1500W) will
Dispersion liquid ultrasound 2h, the cellulose nanometer fibril solution that configuration quality score is 0.02%；
4. the mass fraction for configuring polyethylene glycol to a concentration of 30% solution, and being obtained with step 3 is 0.02%
Cellulose nanometer fibril solution is with 10:1 mixing, obtains the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
5, polyethylene glycol (PEG) is configured to the solution that molecular weight is 600, and the solution obtained with step (3) mixes, and obtains
To the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
6. a pair waterlogged wooden culture relics are simply cleaned, the full water wood particle for being cut into 2 × 2 × 2cm is several, then
It is dipped in the cellulose nanometer fibril strengthening agent that step 4 mass fraction is 0.02%, obtains reinforcing full water wooden unit；
7, processing is dried in the full water wood particle of reinforcing that step 5 processing obtains, the drying mode is that temperature is
60 DEG C, the vacuum drying oven that vacuum degree is -0.1Pa is dried.
Embodiment 4：
1. buying the eucalyptus pulp of bleaching on the market, crush, mechanical disk end is configured to the dispersion liquid of 1wt%, is deposited at 4 DEG C
It puts；
2. taking the above-mentioned dispersion liquids of 400ml, after stirring evenly, 5g ammonium persulfates is added, reacts at 80 DEG C, is terminated after 10h
Reaction；
3. being rinsed obtained dispersion liquid repeatedly to neutrality with deionized water, then use ultrasonic bath (1000W) by this point
Dispersion liquid ultrasound 1.5h, the cellulose nanometer fibril solution that configuration quality score is 0.2%；
4. the fibre that the mass fraction for configuring polyethylene glycol to a concentration of 50% solution, and being obtained with step 3 is 0.2%
The plain nanofibrils solution of dimension is with 1:1 mixing, obtains the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
5. a pair waterlogged wooden culture relics are simply cleaned, the full water wood particle for being cut into 2 × 2 × 2cm is several, then
It is dipped in step 4 strengthening agent, obtains the reinforcing wooden unit for possessing specific structure；
6. processing is dried in the full water wood particle of reinforcing that step 6 processing obtains, the drying mode is that temperature is
25 DEG C of natural dryings.
Embodiment 5：
1. the broomcorn straw after bleaching is obtained the coarse cellulose dispersion liquids of 1wt% by high-pressure homogeneous method；
2. above-mentioned dispersion liquid is added in a concentration of 80% oxalic acid, 5-10min is stirred on magnetic stirring apparatus, makes cellulose
Preferably dispersion；Dispersion liquid is warming up to 50 DEG C, does not during which deactivate magnetic agitation, stir speed (S.S.) 200rpm, the reaction time is
12h；
3. being rinsed obtained dispersion liquid repeatedly to neutrality with deionized water, then use ultrasonic grinder (1500W) will
Dispersion liquid ultrasound 2h, the cellulose nanometer fibril solution that configuration quality score is 0.5%；
4. the mass fraction for configuring polyethylene glycol to a concentration of 1% solution, and being obtained with step (4) is 0.5%
Cellulose nanometer fibril solution is with 1:1 mixing, obtains the strengthening agent of cellulose nanometer fibril and polyethylene glycol；
5. a pair waterlogged wooden culture relics are simply cleaned, the full water wood particle for being cut into 2 × 2 × 2cm is several, then
It is dipped in step 4 strengthening agent, obtains reinforcing wooden unit；
6. processing is dried in the full water wood particle of reinforcing that step 5 processing obtains, the drying mode is that temperature is
45 DEG C of oven dryings.
Claims (9)
1. a kind of waterlogged wooden culture relics reinforcement means using nano-cellulose, it is characterised in that:By nano-cellulose and filling
Agent mixing after obtain strengthening agent, by waterlogged wooden culture relics through decoloration, desalination, be put into strengthening agent impregnate, drying reinforce；Institute
The filler stated is polyethylene glycol or/and polysaccharide or/and epoxy resin；Steps are as follows：
(1) by after bleaching plant tissue or fiber spin-off be configured to 1wt% dispersion liquids；
(2) dispersion liquid for obtaining step (1) is added organic dibasic acid or acid anhydrides or oxidant, after being uniformly dispersed, is warming up to
40-80 DEG C, reaction time 1-40h；
(3) dispersion liquid that step (2) obtains is rinsed with deionized water to neutrality, then with ultrasonic grinder by the dispersion liquid
Then ultrasonic 0.5-2h is configured to the cellulose nanometer fibril solution of a concentration of 0.001%-2%；
(4) polyethylene glycol is configured to the solution that molecular weight is 50-40000, and the solution obtained with step (3) mixes, and obtains
The strengthening agent of cellulose nanometer fibril and polyethylene glycol；
(5) after over cleaning will there are various sizes of waterlogged wooden culture relics to be immersed in step (4) mixed reinforcement agent；
(6) processing is dried in the wooden sample that step (5) processing obtains.
2. waterlogged wooden culture relics reinforcement means as described in claim 1, it is characterised in that：Organic dibasic acid in step (2)
Including maleic acid, oxalic acid；Oxidant includes Tempo, periodic acid, ammonium persulfate.
3. waterlogged wooden culture relics reinforcement means as described in claim 1, it is characterised in that：Drying process described in step (6)
It does for critical point drying or supercritical drying that dried medium is carbon dioxide or freeze-drying or oven drying or naturally
It is dry.
4. waterlogged wooden culture relics reinforcement means as described in claim 1, it is characterised in that：Dispersion liquid is set made from step (1)
Storage is preserved at 4 DEG C.
5. waterlogged wooden culture relics reinforcement means as described in claim 1, it is characterised in that：The cellulose that step (3) obtains is received
Rice fibril dispersion liquid, carboxyl-content 0.1-2.5mmol/g, configuration cellulose nanometer fibril liquid quality fraction are 0.01%-
1.5%.
6. waterlogged wooden culture relics reinforcement means as described in claim 1, it is characterised in that：The poly- second two configured in step (4)
Alcoholic solution mass fraction is 1%-60%.
7. waterlogged wooden culture relics reinforcement means as described in claim 1, it is characterised in that：By waterlogged wooden text in step (5)
Object is handled, and the processing includes but not limited to：The sundries on surface is removed, sundries includes but not limited to mud；It immerses and adds
Gu the time of agent is 2-150h.
8. waterlogged wooden culture relics reinforcement means as described in claim 1, it is characterised in that：Polyglycol solution in step (4)
With the solution that is obtained with step (3) with volume ratio 1:1 mixing.
9. waterlogged wooden culture relics reinforcement means as claimed in claim 3, it is characterised in that：Oven drying described in step (6)
It is dried including vacuum drying oven.
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| CN108393984A (en) * | 2018-02-22 | 2018-08-14 | 浙江大学 | A kind of waterlogged wooden culture relics composite consolidation material and preparation method thereof |
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| CN101492882B (en) * | 2008-12-31 | 2011-04-06 | 荆州文物保护中心 | Use method of bacteria cellulose in ancient protection of wrought silk cultural relics |
| CN101890746A (en) * | 2010-06-02 | 2010-11-24 | 浙江省博物馆 | Solidification method and equipment for unearthed bamboo and wooden wares |
| DE102013017517A1 (en) * | 2013-06-17 | 2014-12-31 | Martin Pracher | CO2 supported impulse consolidation for the preservation of wet archaeological finds |
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2017
- 2017-02-21 CN CN201710094534.9A patent/CN106799781B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393984A (en) * | 2018-02-22 | 2018-08-14 | 浙江大学 | A kind of waterlogged wooden culture relics composite consolidation material and preparation method thereof |
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