CN106827132B - A kind of bamboo wood and its processing technology of area load stannic oxide/graphene nano lamella - Google Patents
A kind of bamboo wood and its processing technology of area load stannic oxide/graphene nano lamella Download PDFInfo
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- CN106827132B CN106827132B CN201710032941.7A CN201710032941A CN106827132B CN 106827132 B CN106827132 B CN 106827132B CN 201710032941 A CN201710032941 A CN 201710032941A CN 106827132 B CN106827132 B CN 106827132B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
-
- 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
- B27K3/16—Inorganic 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
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- 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
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
Abstract
The present invention discloses the bamboo wood and its processing technology of a kind of area load stannic oxide/graphene nano lamella, it is related to technical field of composite materials, processing technology is the following steps are included: S1: producing graphene oxide dispersion, bamboo wood and graphene oxide dispersion are poured into reaction kettle, then reaction kettle is put into baking oven and carries out hydro-thermal reaction；S2: after the completion of hydro-thermal reaction, reaction kettle is taken out, to its natural cooling；S3: bamboo block is taken out, is cleaned using distilled water；S4: after the completion of cleaning, bamboo block being put into vacuum oven and is dried, and the present invention solves bamboo wood there are corrosion resistant performances poor, the low technical problem of thermostabilization of prior art production.
Description
Technical field
The present invention relates to technical field of composite materials more particularly to a kind of bamboos of area load stannic oxide/graphene nano lamella
Material and its processing technology.
Background technique
Bamboo is a kind of natural fast-growing material and the important forest reserves, and bamboo wood is with short production cycle, yield is high, intensity
High and reproducible feature, can be widely applied to the technical fields such as building, building materials, household, and China is few in number in the world
One of the country of bamboo is abounded with, bamboo grove yield occupies first in the world, and bamboo grove area is 720.00 ten thousand hectares.Bamboo is because of its tool
There are characteristics, industry and the commercial values such as breeding power of regeneration is strong, growth cycle is short, material is excellent to become increasingly popular as people
Recognize work to receive, bamboo wood is before use, need just prolong the service life, the pre-treating method of bamboo wood is main by processing
Including physical method and two kinds of chemical method, the principle of physical method is that the nutrient source or conversion nutrient source in removal bamboo wood are inedible
Substance, or partition rot fungi, insect life needed for moisture and air；Its advantage is that processing cost is lower, and it is easy to operate, one
As no pollution to the environment, the disadvantage is that not lasting protectiveness, once processed bamboo wood is further processed or wears
Or cracking, rot fungi can also encroach on bamboo wood once again under certain environment, so physical method is not used alone generally.The original of chemical method
Reason is that the analytic metabolism of fungi is hindered using preservative, to reach the mesh for inhibiting fungi growth and breeding, even killing rot fungi
's；Its advantage is that favorable anti-corrosion effect, residual effect time are long, the disadvantage is that preservative treatment is processed into the disadvantage is that preservative treatment is complicated for operation
This height, and preservative generally has certain adverse effect to human and environment.
Summary of the invention
The object of the present invention is to provide the bamboo wood and its processing technology of a kind of area load stannic oxide/graphene nano lamella, solutions
Bamboo wood there are corrosion resistant performances poor, the low technical problem of thermostabilization of the prior art of having determined production.
A kind of processing technology of the bamboo wood of area load stannic oxide/graphene nano lamella, comprising the following steps:
S1: producing graphene oxide dispersion, and bamboo wood and graphene oxide dispersion are poured into reaction kettle, then will
Reaction kettle, which is put into oven, carries out hydro-thermal reaction；
S2: after the completion of hydro-thermal reaction, reaction kettle is taken out, to its natural cooling；
S3: bamboo block is taken out, is cleaned using distilled water；
S4: after the completion of cleaning, bamboo block is put into vacuum oven and is dried.
Based on the above technical solution, the present invention can also be improved as follows:
Further, the concentration of graphene oxide dispersion is 0.25-1mg/ml in the step S1.
Further, 100-180 DEG C of temperature of hydro-thermal reaction in the step S1, reaction time 1-7h, using this step
Beneficial effect be that nanometer sheet self assembly after being reduced using graphene oxide overlaps to form load layer.
Further, 140-180 DEG C of temperature of hydro-thermal reaction in the step S1, reaction time 3-7h.
A kind of bamboo wood of area load stannic oxide/graphene nano lamella, the bamboo wood are made using above-mentioned processing technology.
Beneficial effects of the present invention:
The present invention, gradually by hydrothermal reduction at graphene nanometer sheet, is then deposited on bamboo block surface by graphene oxide,
It is collected at bamboo material surface, referred to as load layer, finally so as to improve the rotproofness and thermal stability of product；The present invention only passes through oxidation
Graphene is reacted by hydrothermal reduction, processes the bamboo wood corrosion resistant performance of formation and the feature that thermal stability is high, bamboo wood is facilitated to carry out
Secondary operation；Treatment process of the invention is simple, environmentally protective, and production cost is low.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of process flow of the bamboo wood of area load stannic oxide/graphene nano lamella of the specific embodiment of the invention
Figure；
Fig. 2 is the present invention treated bamboo wood and untreated bamboo pyrolysis mass loss rate variation with temperature
Figure；
Fig. 3 is that the present invention treated bamboo wood and untreated bamboo wood are pyrolyzed residual qualities accounting variation with temperature figure；
Fig. 4 is bamboo wood comparison electricity obtained under the concentration conditions of 1-3 of embodiment of the present invention difference graphene oxide dispersion
Mirror figure；
Fig. 5 is bamboo wood comparison electron microscope obtained under the conditions of 1-3 of embodiment of the present invention difference the hydro-thermal reaction time；
Fig. 6 is bamboo wood comparison electron microscope obtained under the conditions of 1-3 of embodiment of the present invention difference hydrothermal temperature.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of processing technology of the bamboo wood of area load stannic oxide/graphene nano lamella provided by the present invention, including it is following
Step:
S1: producing graphene oxide dispersion, and bamboo wood and graphene oxide dispersion are poured into reaction kettle, then will
Reaction kettle, which is put into oven, carries out hydro-thermal reaction；
S2: after the completion of hydro-thermal reaction, reaction kettle is taken out, to its natural cooling；
S3: bamboo block is taken out, is cleaned using distilled water；
S4: after the completion of cleaning, bamboo block is put into vacuum oven and is dried.
Wherein, graphene oxide dispersion is prepared using modified Hummer method in the step S1, oxygen in the step S1
The concentration of graphite alkene dispersion liquid is 0.25mg/ml.
Wherein, 100 DEG C of temperature of hydro-thermal reaction in the step S1, reaction time 1h is passed through using graphene oxide
Nanometer sheet self assembly after hydro-thermal reaction is reduced overlaps to form load layer.
It wherein, is distilled water flushing or ultrasonic cleaning in the step S3, the time of cleaning is 3min.
Wherein, the temperature of vacuum oven is 50 DEG C in the step S4, and the time is for 24 hours.
A kind of bamboo wood of area load stannic oxide/graphene nano lamella, the bamboo wood are made using above-mentioned processing technology.
The load layer of bamboo wood of the present invention is nanometer sheet after being reduced due to graphene oxide by being self-assembly of part
Overlapping, meanwhile, the oxygen-containing functional group of graphene oxide is gradually removed during hydrothermal reduction.As reaction further increases
Redox graphene quantity, more in surface formation interconnection, the network of formation becomes more compact；The graphene of reduction
Possess up to ten million small scales inside reticular structure, they are disorderly stacked with each other, between there are nanosizeds
Capillary gap.Hydrone in these nanotube capillaries can drag small atom core molecule, play the effect of similar molecular sieve,
Water, Oxygen permeation are obstructed, to protect bamboo wood not by rotten easily, its corrosion resistant performance is caused to be promoted.By nano surface coating
After processing, the weight loss of treated bamboo wood compares untreated bamboo specimen, and brown rot fungus has dropped 34.5%, white-rot fungi
It also reduced 12.9%；If bamboo material surface is handled by this method as a result, above two fungi can be inhibited to a certain extent
Growth, extend bamboo product life.
Bamboo block thermal stability produced by the present invention is high, and as shown in Figure 2 and Figure 3, a is common bamboo wood, and b is at present invention process
Bamboo wood after reason, for bamboo wood by three features in thermal decomposition process, the first stage is the initial stage, from 30 DEG C to 252 DEG C, this
The cellulosic structure of a stage bamboo wood does not destroy also, leads to the quality such as the moisture wherein contained and hemicellulose since temperature raises
Loss, which is reduced, to be caused, and after hydro-thermal process, the moisture content that bamboo wood b contains may be high compared with bamboo wood a, leads to the stage yield-loss
Weightlessness is higher than bamboo wood a；Second stage, DEG C bamboo wood a and bamboo wood b mass loss constantly increases from 252 DEG C to 357, and
The rate of bodies lost weight incrementally increases, which mainly occurs the decomposition of cellulose, the continuous degradation of cellulose macromolecule, due to
Surface has the graphite ene coatings of reduction to promote its thermal stability, and the rate for causing hemicellulose to decompose is reduced, the thermogravimetric weight loss rank
Duan Zhucai b is low compared with bamboo wood a；Phase III, from 357 DEG C to 900 DEG C, which degrades simultaneously divides completely
At small molecule, lignin starts to degrade and be carbonized solution, eventually forms certain residual qualities, final residual qualities ratio bamboo wood
B is higher than bamboo wood a, from the point of view of entire pyrolytic process, common mass loss rate wants higher, the reason is that due to the reduction on surface layer
Graphite ene coatings bamboo wood b carbon content wants high compared with bamboo wood a.Find out from figure, the temperature that maximum wt-lossing rates occur, wherein bamboo wood
B is slightly higher compared with bamboo wood a, and since there is the reason of graphite ene coatings on surface layer, resulting in the purer bamboo wood ingredient of its thermal stability will be more
Stablize.
Embodiment 2:
A kind of processing technology of the bamboo wood of area load stannic oxide/graphene nano lamella, comprising the following steps:
S1: producing graphene oxide dispersion, and bamboo wood and graphene oxide dispersion are poured into reaction kettle, then will
Reaction kettle, which is put into oven, carries out hydro-thermal reaction；
S2: after the completion of hydro-thermal reaction, reaction kettle is taken out, to its natural cooling；
S3: bamboo block is taken out, is cleaned by ultrasonic using distilled water；
S4: after the completion of ultrasonic cleaning, bamboo block is put into vacuum oven and is dried.
Wherein, graphene oxide dispersion is prepared using modified Hummer method in the step S1, oxygen in the step S1
The concentration of graphite alkene dispersion liquid is 0.5mg/ml.
Wherein, 180 DEG C of temperature of hydro-thermal reaction in the step S1, reaction time 7h is passed through using graphene oxide
Nanometer sheet self assembly after hydro-thermal reaction reduction overlaps to form load layer.
It wherein, is distilled water flushing or ultrasonic cleaning in the step S3, the time of cleaning is 60min.
Wherein, the temperature of vacuum oven is 50 DEG C in the step S4, and the time is for 24 hours.
A kind of bamboo wood of area load stannic oxide/graphene nano lamella, the bamboo wood are made using above-mentioned processing technology.
Embodiment 3:
A kind of processing technology of the bamboo wood of area load stannic oxide/graphene nano lamella, comprising the following steps:
S1: producing graphene oxide dispersion, and bamboo wood and graphene oxide dispersion are poured into reaction kettle, then will
Reaction kettle, which is put into oven, carries out hydro-thermal reaction；
S2: after the completion of hydro-thermal reaction, reaction kettle is taken out, to its natural cooling；
S3: bamboo block is taken out, is cleaned using distilled water；
S4: after the completion of cleaning, bamboo block is put into vacuum oven and is dried.
Wherein, graphene oxide dispersion is prepared using modified Hummer method in the step S1, oxygen in the step S1
The concentration of graphite alkene dispersion liquid is 1mg/ml.
Wherein, 140 DEG C of temperature of hydro-thermal reaction in the step S1, reaction time 3h is gone back using graphene oxide
Nanometer sheet self assembly after original overlaps to form load layer.
Wherein, cleaning is distilled water flushing or ultrasonic cleaning in the step S3, and the time of cleaning is 40min.
Wherein, the temperature of vacuum oven is 50 DEG C in the step S4, and the time is for 24 hours.
A kind of bamboo wood of area load stannic oxide/graphene nano lamella, the bamboo wood are made using above-mentioned processing technology.
In the above-described embodiments, the influence about the concentration of graphene oxide dispersion to bamboo wood, as shown in figure 4, wherein
Fig. 4 a and Fig. 4 b are respectively that the concentration of graphene oxide dispersion is bamboo wood electron microscope obtained under the conditions of 0.25mg/ml, Fig. 4 a
For high power electron microscope, Fig. 4 b is low power electron microscope；Fig. 4 .c and Fig. 4 d are respectively that the concentration of graphene oxide dispersion is 0.5mg/
Bamboo wood electron microscope obtained under the conditions of ml, Fig. 4 c are high power electron microscope, and Fig. 4 d is low power electron microscope；Fig. 4 e and Fig. 4 f are respectively oxygen
The concentration of graphite alkene dispersion liquid is bamboo wood electron microscope obtained under the conditions of 1mg/ml, and Fig. 4 e is high power electron microscope, and Fig. 4 f is low
Times electron microscope；From above-mentioned Fig. 4 it follows that with graphene oxide concentration increase, surface is supported in water-heat process
The amount of graphene oxide increasing, visible graphene nanometer sheet load is more and more under microcosmic, and coating layer thickness increases,
Macroscopically the color of bamboo chip becomes more and more inclined aterrimus；By experiment it is found that graphene oxide layer is assembled in bamboo material surface,
It is interlaced when concentration is low, show certain porosity, as concentration increases, graphene oxide hydrothermal reduction at
Graphene, the thickness for being supported on bamboo material surface increase, and an interlaced stack layer are formed, with this optimal graphene oxide
Dispersion liquid concentration is 1mg/ml.
Influence about the hydro-thermal reaction time to bamboo wood, as shown in figure 5, when wherein Fig. 5 a and Fig. 5 b are respectively hydro-thermal reaction
Between for bamboo wood electron microscope obtained under the conditions of 1h, Fig. 5 a is high power electron microscope, and Fig. 5 b is low power electron microscope；Fig. 5 c and Fig. 5 d difference
Bamboo wood electron microscope obtained under the conditions of being 7h for the hydro-thermal reaction time, Fig. 5 c are high power electron microscope, and Fig. 5 d is low power electron microscope；Figure
5e and Fig. 5 f is respectively that the hydro-thermal reaction time is bamboo wood electron microscope obtained under the conditions of 3h, and Fig. 5 e is high power electron microscope, and Fig. 5 f is
Low power electron microscope；From above-mentioned Fig. 5 it follows that when the hydro-thermal time is from the change procedure that 1h extends to 7h, when being tested,
It was found that the load capacity of graphene nanometer sheet increases, macroscopically the color of bamboo wood is constantly being deepened, and graphene nanometer sheet is with processing
Its piece diameter of the extension of time is gradually becoming smaller, this may be acted on for a long time due to hydro-thermal cause reduction graphene nanometer sheet by
Gradually fragmentation, peak optimization reaction time are 3h.
Influence about hydrothermal temperature to bamboo wood, as shown in fig. 6, wherein Fig. 6 a and Fig. 6 b is respectively that hydrothermal temperature is
Bamboo wood electron microscope obtained under the conditions of 100 DEG C, Fig. 6 a are high power electron microscope, and Fig. 6 b is low power electron microscope；Fig. 6 c and Fig. 6 d difference
Bamboo wood electron microscope obtained under the conditions of being 140 DEG C for hydrothermal temperature, Fig. 6 c are high power electron microscope, and Fig. 6 d is low power Electronic Speculum
Figure；Fig. 6 e and Fig. 6 f are respectively that hydrothermal temperature is bamboo wood electron microscope obtained under the conditions of 7h, and Fig. 6 e is high power electron microscope, figure
6f is low power electron microscope；From in above-mentioned Fig. 6 it follows that in the change procedure that hydrothermal temperature is increased to 180 DEG C from 100 DEG C, water
The redox graphene of hot back loading is gradually increasing, and graphene nanometer sheet load area is bigger, and bamboo chip color gradually deepens；
When temperature is increased to 180 DEG C, the graphene oxide amount of reduction is dramatically increased, and the color of bamboo chip is obviously deepened, but due to high temperature
Processing have a great impact to bamboo wood, starch in bamboo wood etc. also substance be precipitated, temperature is too high, on bamboo and wood materials performance influence compared with
Greatly, temperature is too low, and hydro-thermal reaction load effect is poor, and optimal is 140 DEG C.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (3)
1. a kind of processing technology of the bamboo wood of area load stannic oxide/graphene nano lamella, which comprises the following steps:
S1: producing graphene oxide dispersion, and bamboo wood and graphene oxide dispersion are poured into reaction kettle, then will reaction
Kettle, which is put into oven, carries out hydro-thermal reaction, 140-180 DEG C of the temperature of the hydro-thermal reaction；Reaction time is 3-7h；
S2: after the completion of hydro-thermal reaction, reaction kettle is taken out, to its natural cooling；
S3: bamboo block is taken out, is cleaned using distilled water；
S4: after the completion of cleaning, bamboo block is put into vacuum oven and is dried.
2. a kind of processing technology of the bamboo wood of area load stannic oxide/graphene nano lamella according to claim 1, special
Sign is that the concentration of graphene oxide dispersion is 0.25-1mg/ml in the step S1.
3. a kind of bamboo wood of area load stannic oxide/graphene nano lamella, which is characterized in that the bamboo wood uses claim 1-2
The processing technology of the bamboo wood of described in any item area load stannic oxide/graphene nano lamellas is made.
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| CN110802698B (en) * | 2018-08-06 | 2021-04-27 | 内蒙古农业大学 | Wood-based graphene green conductive composite material and preparation method thereof |
| CN111098372B (en) * | 2018-10-29 | 2022-01-28 | 内蒙古农业大学 | Preparation method of wood-based graphene conductive composite material |
| CN110202659B (en) * | 2019-06-13 | 2021-01-29 | 福建省顺昌县升升木业有限公司 | Amine copper grafted graphene oxide fir preservative and preparation method and construction process thereof |
| CN113146765A (en) * | 2021-04-22 | 2021-07-23 | 贵州八六三科技有限公司 | Environment-friendly flame-retardant wood |
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| CN103408004B (en) * | 2013-08-02 | 2015-02-25 | 南京理工大学 | Hydrophobic functional graphene oxide nano hybrid material with higher thermal stability and preparation method of hydrophobic functional graphene oxide nano hybrid material |
| CN106142243B (en) * | 2016-07-05 | 2018-03-16 | 国际竹藤中心 | A kind of antimicrobial form bamboo composite and preparation method |
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