CN110328727A - A kind of transparent timber and the application of the method and its preparation preparing transparent timber using organic solvent - Google Patents
A kind of transparent timber and the application of the method and its preparation preparing transparent timber using organic solvent Download PDFInfo
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- CN110328727A CN110328727A CN201910385150.1A CN201910385150A CN110328727A CN 110328727 A CN110328727 A CN 110328727A CN 201910385150 A CN201910385150 A CN 201910385150A CN 110328727 A CN110328727 A CN 110328727A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000003960 organic solvent Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 229920005610 lignin Polymers 0.000 claims abstract description 39
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000004061 bleaching Methods 0.000 claims abstract description 14
- 235000019441 ethanol Nutrition 0.000 claims abstract description 14
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims abstract description 14
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000004090 dissolution Methods 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000002023 wood Substances 0.000 claims description 16
- 238000009835 boiling Methods 0.000 claims description 15
- 239000003822 epoxy resin Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 229920000647 polyepoxide Polymers 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229920000307 polymer substrate Polymers 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000000527 sonication Methods 0.000 claims description 2
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 abstract description 13
- 239000011159 matrix material Substances 0.000 abstract description 4
- 238000004821 distillation Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract description 2
- 229910052801 chlorine Inorganic materials 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 13
- 238000011049 filling Methods 0.000 description 10
- 244000166124 Eucalyptus globulus Species 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 8
- 239000007844 bleaching agent Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 3
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- -1 Benzophenone hydroxy acid Chemical class 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
- B27K5/0065—Ultrasonic treatment
-
- 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
- B27K5/02—Staining or dyeing wood; Bleaching wood
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The present invention relates to transparent timber and the applications of a kind of method and its preparation that transparent timber is prepared using organic solvent.Specific step is as follows for the method for the present invention: it is first that veneer sample is dry at 105 ± 5 DEG C, it is subsequently placed in ethanol water, is rinsed after being stripped under the conditions of 85~95 DEG C to dried veneer sample with ethanol water；Aqueous hydrogen peroxide solution is recycled to carry out hold mode bleaching；It is finally filled using polymer matrix confrontation timber hole and gap, obtains translucency wood-base materials.The present invention utilizes ethyl alcohol dissolution in low temperature lignin, can retain complete timber prototype structure, and the lignin of removing is closer to original lignin, and transparent timber optical transmittance with higher obtained.It is environmentally protective in addition, present invention use is without chlorine method delignification, and ethyl alcohol can all recycling by way of distillation, reduce costs.Transparent timber produced by the present invention can be applied to light transmission building and transparent solar cell window.
Description
Technical field
The invention belongs to novel timber technological development and modified fields, and in particular to it is a kind of prepared using organic solvent it is transparent
The method of timber and its transparent timber of preparation and application.
Background technique
Due to the energy and environmental crisis, built using recovered material environmentally friendly, energy conservation type is built into
For research hotspot in recent years.Transparent timber has recyclable, and density is low, high light transmittance, low thermal conductiv-ity, strong shock resistance
The advantages that, there are very big potentiality in terms of preparing light-transmitting construction materials.
During preparing transparent timber, delignification is crucial.It is mostly using sodium hypochlorite, Asia in current report
The method of sodium chlorate, sodium hydroxide, sodium sulfite and hydrogen peroxide carries out oxidation-type removing or modified chromophoric group, thus real
Existing delignification process.However in above method or there are problems that generating foul smell, such as methyl mercaptan, dimethyl sulfide and hydrogen sulfide
Deng or waste liquid in can form noxious material, such as dioxin or hydrogen peroxide decomposition efficiency it is high so that delignification low efficiency.
Based on the above reasons, special to propose the application.
Summary of the invention
For the above-mentioned problems of the prior art and defect, organic solvent is utilized the purpose of the present invention is to provide a kind of
Prepare the method for transparent timber and its transparent timber of preparation and application.The present invention is based on the principles of organosolv pulping, use
Cold ethanol method delignification prepares transparent timber, and the method can not only retain complete timber prototype structure, the lignin of removing
Closer to original lignin, higher value application potentiality are big, and ethyl alcohol can all be recycled by way of distillation, can be substantially reduced into
This.The present invention will provide solid theoretical basis to the preparation of recyclable translucency wood-base materials, and industrialize to it
Implement to provide powerful feasibility guarantee.
In order to realize above-mentioned purpose of the invention, The technical solution adopted by the invention is as follows:
A method of transparent timber being prepared using organic solvent, the method specifically comprises the following steps:
(1) veneer sample is dried to 24~48h under the conditions of 100~110 DEG C；
(2) the veneer sample of step (1) after dry is placed in ethanol water, is heated to 85~95 DEG C of extracting boilings
It is all dissolved out to lignin, then veneer sample is taken out, is rinsed for several times under the conditions of 85~95 DEG C with ethanol water；
(3) the veneer sample after step (2) described flushing is placed in bleaching liquid, then is heated to boiling by bleaching liquid
Constant temperature is bleached to sample without obvious yellow afterwards, and sample is taken out, then is rinsed for several times with deionized water, and delignification template is obtained；
(4) the delignification template one that polymer substrate, curing agent and step (3) obtain is placed in processor for ultrasonic wave
The middle ultrasonic treatment that carries out makes the composite matrix well into the hole of wood chip and gap, obtaining the transparent timber.
Further, above-mentioned technical proposal, step (1) the veneer sample are preferably that density is 450~650kg/m3's
Eucalyptus.
Further, above-mentioned technical proposal, in step (2) described ethanol water the volume fraction of ethyl alcohol be 50~
70%.
Further, the time of above-mentioned technical proposal, step (2) the extracting boiling is 24~72h.
Further, above-mentioned technical proposal, step (3) described bleaching liquid is preferably hydrogen peroxide (H2O2), the hydrogen peroxide
Concentration be preferably 1~5mol/L, more preferably 2.5mol/L.
Further, above-mentioned technical proposal, step (4) sonication treatment time are 2~3h.
Further, above-mentioned technical proposal, step (4) polymer substrate are epoxy resin, methyl methacrylate
Any one of.
Preferably, above-mentioned technical proposal, the curing agent can for dicyandiamide, adipic dihydrazide, phthalic anhydride,
Any one of trimellitic anhydride, pyromellitic acid anhydride, three acid anhydride of Benzophenone hydroxy acid, maleic anhydride etc., the polymerization
The mass ratio of object matrix and curing agent is (1~2): 1.
Second object of the present invention is that providing the method described above for preparing transparent timber using organic solvent prepares
Obtained transparent timber.
Third object of the present invention be to provide transparent timber made from method described above light transmission building and thoroughly
Application in bright solar battery window etc..
A kind of light transmission building or transparent solar cell window, including transparent timber made from method described above.
Compared with prior art, a kind of method and its preparation preparing transparent timber using organic solvent of the present invention
Transparent timber and application have the following beneficial effects:
1) transparent timber optical transmittance with higher produced by the present invention；
2) present invention utilizes ethyl alcohol dissolution in low temperature lignin, can not only retain complete timber prototype structure, the wood of removing
Element can carry out high value added utilization closer to original lignin；
3) use is environmentally protective without chlorine method delignification, and ethyl alcohol can all recycling by way of distillation, reduce costs；
4) raw material innovate: the present invention combination national conditions, it is preferable to use the Eucalyptus speed of growth it is fast, yield height, material is uniform,
The advantages that intensity is good, and rigidity is big, and density is high can fill up the blank that domestic and international Eucalyptus prepares transparent timber research.
Specific embodiment
Below with reference to case study on implementation, invention is further described in detail.The implementation case before being with the technology of the present invention
It puts and is implemented, provide detailed embodiment and specific operating process now to illustrate that the present invention is creative, but this
The protection scope of invention case study on implementation not limited to the following.
The information for including according to the application, to those skilled in the art can be easily to essence of the invention
Really description carries out various changes, without departing from spirit and scope of the appended claims.It should be understood that the scope of the present invention
Process, property defined by being not limited to or component, because these embodiments and other descriptions are just for the sake of signal
Property illustrates certain aspects of the present disclosure.In fact, this field or those skilled in the relevant art can obviously implement the present invention
The various changes that mode is made all cover within the scope of the appended claims.
It is not intended to limit the scope of the invention for a better understanding of the present invention, expression dosage used in this application,
All numbers of percentage and other numerical value, are understood to be modified with word " about " in all cases.Cause
This, unless stated otherwise, otherwise digital parameters listed in specification and appended book are all approximations,
It may be changed according to the difference for the desirable properties for attempting to obtain.Each digital parameters at least should be considered as basis
It the effective digital reported and is obtained by the conventional method of rounding up.
Eucalyptus wood chip is preferably cut into the close spile of size by the present invention, in the different ethanol concentration of different temperatures
Boiling different time is extracted in aqueous solution under different temperatures.The dissolution that lignin is completed according to test technology condition, then by wood chip
It is rinsed repeatedly in the ethanol water of heat for several times, after removing most of chemical substance, wooden unit is placed in bleaching liquid, is controlled
Water temperature processed makes its boiling, is once stirred every half an hour, during which appropriate post-bleach agent.When sample is without obvious yellow,
It takes out sample and with warm water washing two to three times, finally timber hole and gap is filled, obtain translucency wood substrate
Material.Infrared spectrum analysis and scanning electron microscope analysis are carried out to it.
The refractive index of lignin is 1.61, and the refractive index of cellulose (refractive index 1.53) and hemicellulose (refractive index 1.53)
Relatively low, after removing lignin, the refractive index of cell wall constituent almost can reach 1.53；In order to be further reduced light scattering and drop
The polymer that refractive index matches can be injected in low nanoporosity, to adjust optical interface.
Epoxy resin, methyl methacrylate etc. can form polymer material with inorganic nano-particle, therefore be often used as
Composite matrix；Work is cooperateed with due to the arrangement of the directional fiber element nanofiber on cell wall and its between polymer
With so the mechanical property (high-intensitive and elasticity modulus) shown is excellent than before, and the layered structure of transparent wood tissue
Intact, this quality of materials is light, at low cost, can be widely used in light transmission building and transparent solar cell window etc.
Aspect.
Embodiment 1
A kind of method preparing transparent timber using organic solvent of the present embodiment, the method specifically include following step
It is rapid:
(1) veneer sample is first dried to 48h at 105 ± 5 DEG C.
(2) by dried veneer sample, boiling is extracted for 24 hours under the solution of 70% concentration of alcohol at 95 DEG C, then will
Veneer sample takes out, and is rinsed with ethanol water for several times, to remove remaining physical absorption in wood chip under the conditions of 85~95 DEG C
Type lignin.
(3) the veneer sample after rinsing step (2) is placed in the bleaching liquid that concentration is 2.5mol/L, and control water temperature makes
It boils, and is once stirred every half an hour, during which appropriate post-bleach agent, and removal lignin sample is obtained.
(4) one juxtaposition of removal lignin sample for obtaining epoxy resin, adipic dihydrazide (curing agent), step (3)
In processor for ultrasonic wave, 2.5h filling is carried out under the action of ultrasonic wave to timber hole and gap, obtains translucency wood base
Material, in which: the mass ratio of the epoxy resin and curing agent is 1.5:1.
(5) chemical analysis is carried out to translucency wood-base materials obtained.In 1450cm-1There is a very big absorption peak at place,
Therefore the peak value for being inferred to Lignin in Eucalyptus is 1450cm-1；Lignin is removed in the picture obtained under the purification time by Electronic Speculum to leave
Gap it is few and unobvious, removing lignin it is less, filling effect is general.
After tested, transparent timber made from the present embodiment, with higher 72% light transmittance, under the conditions of 105 DEG C into
For 24 hours, light transmittance does not decline for row aging.
Embodiment 2
A kind of method preparing transparent timber using organic solvent of the present embodiment, the method specifically include following step
It is rapid:
(1) veneer sample is first dried to 48h at 105 ± 5 DEG C.
(2) by dried veneer sample, boiling 48h is extracted under the solution of 70% concentration of alcohol at 95 DEG C, then will
Veneer sample takes out, and is rinsed with ethanol water for several times, to remove remaining physical absorption in wood chip under the conditions of 85~95 DEG C
Type lignin.
(3) the veneer sample after rinsing step (2) is placed in the bleaching liquid that concentration is 2.5mol/L, and control water temperature makes
It boils, and is once stirred every half an hour, during which appropriate post-bleach agent.
(4) the removal lignin sample one that epoxy resin, dicyandiamide (curing agent), step (3) obtain is placed in ultrasound
In wave processor, 2.5h filling is carried out under the action of ultrasonic wave to timber hole and gap, obtains translucency wood-base materials,
Wherein: the mass ratio of the epoxy resin and curing agent is 1.5:1.
(5) chemical analysis is carried out to translucency wood-base materials obtained.In 1450cm-1There is a very big absorption peak at place,
Therefore the peak value for being inferred to Lignin in Eucalyptus is 1450cm-1；Lignin is removed in the picture obtained under the purification time by Electronic Speculum to leave
Gap it is more and obvious, removing lignin it is more, filling effect is preferable.
After tested, transparent timber made from the present embodiment, with higher 75% light transmittance, under the conditions of 105 DEG C into
For 24 hours, light transmittance does not decline for row aging.
Embodiment 3
A kind of method preparing transparent timber using organic solvent of the present embodiment, the method specifically include following step
It is rapid:
(1) veneer sample is first dried to 48h at 105 ± 5 DEG C.
(2) by dried veneer sample, boiling 72h is extracted under the solution of 70% concentration of alcohol at 95 DEG C, then will
Veneer sample takes out, and is rinsed with ethanol water for several times, to remove remaining physical absorption in wood chip under the conditions of 85~95 DEG C
Type lignin.
(3) the veneer sample after rinsing step (2) is placed in the bleaching liquid that concentration is 2.5mol/L, and control water temperature makes
It boils, and is once stirred every half an hour, during which appropriate post-bleach agent.
(4) one juxtaposition of removal lignin sample for obtaining epoxy resin, maleic anhydride (curing agent), step (3)
In processor for ultrasonic wave, 2.5h filling is carried out under the action of ultrasonic wave to timber hole and gap, obtains translucency wood base
Material, in which: the mass ratio of the epoxy resin and curing agent is 2:1.
(5) chemical analysis is carried out to translucency wood-base materials obtained.
Transparent timber manufactured in the present embodiment is in 1450cm-1There is a very big absorption peak at place, therefore is inferred to Lignin in Eucalyptus
Peak value be 1450cm-1；The gap that removing lignin leaves in the picture obtained under the purification time by Electronic Speculum is most and removes
Very well clearly, removing lignin is complete, the best of filling effect for lignin effect
In 900cm-1There is also an absorption peaks at place, are herein the absorption peak of C-O-C according to the table of absorption value, point
Analysis guesses that this may be due to producing some ethers during the cooking process.
After tested, transparent timber made from the present embodiment, with higher 77% light transmittance, under the conditions of 105 DEG C into
For 24 hours, light transmittance does not decline for row aging.
Embodiment 4
A kind of method preparing transparent timber using organic solvent of the present embodiment, the method specifically include following step
It is rapid:
(1) first veneer sample is dried for 24 hours at 105 ± 5 DEG C.
(2) by dried veneer sample, boiling 48h is extracted under the solution of 60% concentration of alcohol at 85 DEG C, then will
Veneer sample takes out, and is rinsed with ethanol water for several times, to remove remaining physical absorption in wood chip under the conditions of 85~95 DEG C
Type lignin.
(3) the veneer sample after rinsing step (2) is placed in the bleaching liquid that concentration is 2mol/L, and control water temperature makes it
Boiling, is once stirred, during which appropriate post-bleach agent every half an hour.
(4) by epoxy resin, pyromellitic acid anhydride (curing agent), step (3) obtain removal lignin sample together
It is placed in processor for ultrasonic wave, 3h filling is carried out under the action of ultrasonic wave to timber hole and gap, obtains translucency wood base
Material, in which: the mass ratio of the epoxy resin and curing agent is 1.5:1.
(5) chemical analysis is carried out to translucency wood-base materials obtained.In 1450cm-1There is a very big absorption peak at place,
Therefore the peak value for being inferred to Lignin in Eucalyptus is 1450cm-1；Lignin is removed in the picture obtained under the purification time by Electronic Speculum to leave
Gap it is more and obvious, removing lignin it is more, filling effect is preferable.
After tested, transparent timber made from the present embodiment, with higher 80% light transmittance, under the conditions of 105 DEG C into
Row aging 36h, light transmittance do not decline.
Embodiment 5
A kind of method preparing transparent timber using organic solvent of the present embodiment, the method specifically include following step
It is rapid:
(1) first veneer sample is dried for 24 hours at 105 ± 5 DEG C.
(2) by dried veneer sample, boiling is extracted for 24 hours under the solution of 50% concentration of alcohol at 90 DEG C, then will
Veneer sample takes out, and is rinsed with ethanol water for several times, to remove remaining physical absorption in wood chip under the conditions of 85~95 DEG C
Type lignin.
(3) the veneer sample after rinsing step (2) is placed in the bleaching liquid that concentration is 3mol/L, and control water temperature makes it
Boiling, is once stirred, during which appropriate post-bleach agent every half an hour.
(4) the removal lignin sample one that epoxy resin, dicyandiamide (curing agent), step (3) obtain is placed in ultrasound
In wave processor, 3h filling is carried out under the action of ultrasonic wave to timber hole and gap, obtains translucency wood-base materials,
In: the mass ratio of the epoxy resin and curing agent is 1:1.
(5) chemical analysis is carried out to translucency wood-base materials obtained.In 1450cm-1There is a very big absorption peak at place,
Therefore the peak value for being inferred to Lignin in Eucalyptus is 1450cm-1；Lignin is removed in the picture obtained under the purification time by Electronic Speculum to leave
Gap it is more and obvious, removing lignin it is more, filling effect is preferable.
After tested, transparent timber made from the present embodiment, with higher 85% light transmittance, under the conditions of 105 DEG C into
Row aging 72h, light transmittance do not decline.
Claims (10)
1. a kind of method for preparing transparent timber using organic solvent, it is characterised in that: the method specifically comprises the following steps:
(1) veneer sample is dried to 24~48h under the conditions of 100~110 DEG C；
(2) the veneer sample of step (1) after dry is placed in ethanol water, is heated to 85~95 DEG C of extracting boilings to lignin
All dissolutions, then take out veneer sample, are rinsed for several times under the conditions of 85~95 DEG C with ethanol water；
(3) the veneer sample after step (2) described flushing is placed in bleaching liquid, bleaching liquid is then heated to constant temperature after boiling
Bleaching, without obvious yellow, sample is taken out to sample, then is rinsed for several times with deionized water, and delignification template is obtained；
(4) the delignification template one that polymer substrate, curing agent and step (3) obtain is placed in processor for ultrasonic wave and is carried out
Ultrasonic treatment makes the polymer substrate well into the hole of wood chip and gap, obtaining the transparent timber.
2. the method according to claim 1 for preparing transparent timber using organic solvent, it is characterised in that: step (1) institute
It is 450~650kg/m that state veneer sample, which be density,3Eucalyptus.
3. the method according to claim 1 for preparing transparent timber using organic solvent, it is characterised in that: step (2) institute
The volume fraction for stating ethyl alcohol in ethanol water is 50~70%.
4. the method according to claim 1 for preparing transparent timber using organic solvent, it is characterised in that: step (2) institute
The time for stating extracting boiling is 24~72h.
5. the method according to claim 1 for preparing transparent timber using organic solvent, it is characterised in that: step (3) institute
Stating bleaching liquid is hydrogen peroxide, and the concentration of the hydrogen peroxide is 1~5mol/L.
6. the method according to claim 1 for preparing transparent timber using organic solvent, it is characterised in that: step (4) institute
Stating sonication treatment time is 2~3h.
7. the method according to claim 1 for preparing transparent timber using organic solvent, it is characterised in that: step (4) institute
Stating polymer substrate is any one of epoxy resin, methyl methacrylate.
8. the transparent wood that the described in any item methods for preparing transparent timber using organic solvent of claim 1~7 are prepared
Material.
9. the transparent timber that any one of claim 1~7 the method is prepared is in light transmission building and transparent solar-electricity
Application in pond window etc..
10. a kind of light transmission building or transparent solar cell window, it is characterised in that: including any one of claim 1~7 institute
The transparent timber that the method for stating is prepared.
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| CN201910385150.1A CN110328727A (en) | 2019-05-09 | 2019-05-09 | A kind of transparent timber and the application of the method and its preparation preparing transparent timber using organic solvent |
| MYPI2019007703A MY196496A (en) | 2019-05-09 | 2019-12-23 | Method For Preparing Transparent Wood Using Organic Solvent, Transparent Wood Prepared using the Method, and Applications of the Transparent Wood |
| PCT/CN2019/129646 WO2020224279A1 (en) | 2019-05-09 | 2019-12-28 | Method for preparing transparent wood material by means of organic solvent, and transparent wood material prepared thereby and use thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020224279A1 (en) * | 2019-05-09 | 2020-11-12 | 浙江景兴纸业股份有限公司 | Method for preparing transparent wood material by means of organic solvent, and transparent wood material prepared thereby and use thereof |
| CN112809865A (en) * | 2021-01-20 | 2021-05-18 | 中南林业科技大学 | Preparation method of strong alkali-resistant transparent wood with high dimensional stability |
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| WO2016197233A1 (en) * | 2015-06-09 | 2016-12-15 | Universite Laval | Organosolv process for the extraction of highly pure lignin and products comprising the same |
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| JP4359681B2 (en) * | 2004-10-28 | 2009-11-04 | 国立大学法人信州大学 | Transparency compressed wood |
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| CN208812277U (en) * | 2018-06-04 | 2019-05-03 | 东北林业大学 | A kind of timber of high thickness multi-layer transparent |
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| CN110328727A (en) * | 2019-05-09 | 2019-10-15 | 浙江景兴纸业股份有限公司 | A kind of transparent timber and the application of the method and its preparation preparing transparent timber using organic solvent |
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2019
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| CN112809865A (en) * | 2021-01-20 | 2021-05-18 | 中南林业科技大学 | Preparation method of strong alkali-resistant transparent wood with high dimensional stability |
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| MY196496A (en) | 2023-04-17 |
| WO2020224279A1 (en) | 2020-11-12 |
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