CN104260169B - Wood substrate composite material of a kind of hydrophobic, anti-ultraviolet aging and preparation method thereof - Google Patents
Wood substrate composite material of a kind of hydrophobic, anti-ultraviolet aging and preparation method thereof Download PDFInfo
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- CN104260169B CN104260169B CN201410523576.6A CN201410523576A CN104260169B CN 104260169 B CN104260169 B CN 104260169B CN 201410523576 A CN201410523576 A CN 201410523576A CN 104260169 B CN104260169 B CN 104260169B
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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
-
- 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
- B27K3/32—Mixtures of different 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
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/70—Hydrophobation 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
- B27K2240/00—Purpose of the treatment
- B27K2240/90—UV-protection
Abstract
The invention discloses wood substrate composite material of a kind of hydrophobic, anti-ultraviolet aging and preparation method thereof.The superficial layer of described composite is the titanium dioxide layer with micro-nano secondary structure, and its crystal structure is rutile-type.Described preparation method comprises precursor solution preparation, multi-step impregnation and drying process, first water-soluble titanium source is dispersed in the sodium-chloride water solution of 5 ~ 7mol/L and obtains solution a, make the concentration of water-soluble titanium source be 0.001 ~ 0.500mol/L; Alkaline matter is evenly added in solution a and obtain precursor solution, make the concentration of alkaline matter be 0.001 ~ 0.500mol/L.Wood substrate is immersed precursor solution, under room temperature, reacts 1 ~ 10d, cleaning, drying 1 ~ 2d, the wood substrate composite material obtained is immersed in the low-surface energy substance solution of 0.8 ~ 1.2%, under room temperature, reacts 0.2 ~ 1d, dry 1 ~ 2d.Described preparation method can have the titanium dioxide surface layer of rutile-type secondary micro-nano structure at the surface construction of wood substrate, make wood substrate composite material have excellent hydrophobicity and anti-ultraviolet ageing.
Description
Technical field
The invention belongs to wood substrate composite material technical field, be specifically related to wood substrate composite material of a kind of hydrophobic, anti-ultraviolet aging and preparation method thereof.
Background technology
Wood based materials and goods thereof are biological species materials that in daily life and economic construction, purposes is unique in four large materials (steel, cement, timber and plastics) the most widely, have the high ratio of strength to weight, easily cohere, the advantage such as hard and soft moderate, reproducible utilization.The cell membrane of wood based materials is mainly become to be grouped into three kinds, lignin by cellulose, hemicellulose, and these three kinds of compositions all comprise hydroxy functional group, and therefore wood based materials has natural hydrophily.When it is exposed to outdoor, under the synergy of the factors such as water, sunshine and microorganism, natural aging can be there is gradually.Ultraviolet wherein in water and sunshine is two important factor in order.On the one hand, along with the change of water content in environment, wood based materials Absorbable rod and a large amount of water of release, thus cause that drying shrinkage is wet to rise, cause the instability of size, produce internal stress, warpage, distortion and cracking occur; On the other hand, due to the ultraviolet in the lignin on wood based materials surface, cellulose strong absorption sunshine, be decomposed through free yl induction degradation reaction.Above-mentioned catabolite is very easy to run off from wood based materials under the washing away of rainwater and dew, and this exacerbates the distortion of wood based materials, cracking and variable color further, finally causes wood based materials to lose original value.
Titanium dioxide (TiO
2), be commonly called as titanium white, have anatase, brockite and rutile three kinds of crystal formations.Because Detitanium-ore-type is high at the luminance factor rutile-type of visible ray short wavelength part, and lower than rutile-type to ultraviolet absorbability, and therefore photocatalytic activity is higher than rutile-type.But rutile-type is more stable and fine and close than Detitanium-ore-type, have higher density, hardness, dielectric constant and refractive index, also comparatively Detitanium-ore-type is high for its covering power and tinting strength, tinting power.Therefore Detitanium-ore-type is often used in photocatalysis field, and rutile-type is owing to absorbing by force ultraviolet ability, has purposes widely in fields such as coating, pigment, ink, antiultraviolets.At present, in wood substrate composite material research and development field that is hydrophobic and anti-ultraviolet aging, researchers generally adopt anatase titanium dioxide to carry out surface modification to wood substrate, reduce the light degradation degree of material and moisture absorption, water imbibition, also report is rarely had constructing of surface of wooden substrate for rutile titanium dioxide.Therefore, research and develop a kind of novel wood substrate composite material with the titanium dioxide surface layer of multi-stage micro-nano structure and corresponding preparation method thereof, the surface topography of further optimization composite, reduce surface energy, improve hydrophobicity and the anti-ultraviolet aging of material, for the application expanding wood substrate composite material, extend life cycle, raising added value of product all tool is of great significance.
Summary of the invention
The first object of the present invention is to provide a kind of wood substrate composite material of hydrophobic, anti-ultraviolet aging; The second object of the present invention is the preparation method providing described wood substrate composite material.
The first object of the present invention is achieved in that the superficial layer of the wood substrate composite material of described hydrophobic, anti-ultraviolet aging is the titanium dioxide layer with micro-nano secondary structure, and its crystal structure is rutile-type.
The second object of the present invention is achieved in that the preparation method of the wood substrate composite material of described hydrophobic, anti-ultraviolet aging, comprises precursor solution preparation, multi-step impregnation and drying process, specifically comprises:
A, precursor solution are prepared: water-soluble titanium source be dispersed in the sodium-chloride water solution of 5 ~ 7mol/L, stir, obtain solution a, make water-soluble titanium source concentration in the solution be 0.001 ~ 0.500mol/L; Alkaline matter is added in solution a, stir, obtain solution b, i.e. precursor solution, make alkaline matter concentration in the solution be 0.001 ~ 0.500mol/L.
B, one-level dipping and drying: pending wood substrate is immersed in precursor solution, 1 ~ 10d is reacted under room temperature, wood substrate after process is taken out, wash, under room temperature, dry 1 ~ 2d, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure;
C, second steepwater and drying: it is in the low-surface energy substance solution of 0.8 ~ 1.2% that the wood substrate composite material obtained in process B is immersed mass percent, 0.2 ~ 1d is reacted under room temperature, then wood substrate composite material is taken out, under room temperature, dry 1 ~ 2d, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
The present invention adopts Low Temperature Wet chemical method that rutile titanium dioxide micro-nano secondary structure is constructed the surface at wood substrate first, forms wood substrate composite material that is hydrophobic, anti-ultraviolet aging.The water-soluble titanium source such as titanium trichloride, butyl titanate is used as the presoma of titanium dioxide; Water soluble alkaline material such as NaOH, ammoniacal liquor or ethylenediamine are used to the Acidity of Aikalinity regulating solution; Sodium-chloride water solution is used as solvent.By accurately controlling reaction time and liquid ratio, respectively the rutile phase titanium dioxide particles of diameter 1.5 ~ 5 μm and 20 ~ 200nm being randomly dispersed in surface of wooden substrate, forming firm, continuous, fine and close class strawberry-like secondary micro-nano structure.The reaction condition adopted is gentle, not only reduces the modification costs such as energy consumption, is more conducive to the premium properties keeping wood substrate, reduces the degraded of hemicellulose, lignin in wood substrate.Through titanium dioxide micro-nano secondary structure to the roughening of surface of wooden substrate, be aided with low-surface energy substance again, successfully make wood substrate change super-hydrophobicity into by natural hydrophily, 150 ~ 160 ° can be reached, through 0.35Wm in accelerated ageing case with the static contact angle of water
-2ultraviolet radiation after 10 days, the chromatic aberration of described wood substrate composite material is only 29 ~ 38% of untreated control wood substrate, presents strong anti-ultraviolet aging performance.Preparation method's technique of the present invention is simple, and reacting balance is controlled, and raw material availability is high, and equipment interoperability is good, is convenient to carry out large-scale production, prepared wood substrate composite material excellent size stability, and weatherability is outstanding, has higher application value.
Accompanying drawing explanation
Fig. 1 is the x-ray diffraction pattern of the wood substrate composite material of hydrophobic, anti-ultraviolet aging prepared by embodiment 1;
Fig. 2 is the electron scanning micrograph of the wood substrate composite material of hydrophobic, anti-ultraviolet aging prepared by embodiment 1;
Fig. 3 is the water static contact angle of the wood substrate composite material of hydrophobic, anti-ultraviolet aging prepared by embodiment 1;
Fig. 4 be hydrophobic, anti-ultraviolet aging prepared by embodiment 1 ~ 6 wood substrate composite material (under) with untreated control wood substrate (on) through Ultraviolet radiation comparison diagram on (right side) after (left side) before 10 days.
Detailed description of the invention
The present invention is further illustrated below, but limited the present invention never in any form, and any conversion done based on training centre of the present invention or replacement, all belong to protection scope of the present invention.
The superficial layer of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention is the titanium dioxide layer with micro-nano secondary structure, and its crystal structure is rutile-type.
The thickness of described titanium dioxide layer is 1 ~ 100 μm.
The described titanium dioxide layer with micro-nano secondary structure has class strawberry-like surface.
The described titanium dioxide layer with micro-nano secondary structure is made up of the nano particle of diameter to be the micron particles of 1.5 ~ 5 μm and diameter be 20 ~ 200nm.
Described nano particle is positioned at the surface of the wood substrate between the surface of micron particles and/or micron particles.
The static contact angle of described wood substrate composite material and water is 150 ~ 160 °, through 0.35Wm
-2ultraviolet radiation after 10 days, the chromatic aberration DE* of described wood substrate composite material is only 29 ~ 38% of blank wood substrate.
The preparation method of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention, comprises precursor solution preparation, multi-step impregnation and drying process, specifically comprises:
Described precursor solution preparation refers to and is dispersed in the sodium-chloride water solution of 5 ~ 7mol/L by water-soluble titanium source, stirs, obtains solution a, make water-soluble titanium source concentration in the solution be 0.001 ~ 0.500mol/L; Alkaline matter is added in solution a, stir, obtain solution b, i.e. precursor solution, make alkaline matter concentration in the solution be 0.001 ~ 0.500mol/L.
Described one-level dipping and drying refer to immerses in precursor solution by pending wood substrate, 1 ~ 10d is reacted under room temperature, wood substrate after process is taken out, wash, under room temperature, dry 1 ~ 2d, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure.
It is in the low-surface energy substance solution of 0.8 ~ 1.2% that described second steepwater and drying refer to the wood substrate composite material obtained in above-mentioned operation immersion mass percent, 0.2 ~ 1d is reacted under room temperature, then wood substrate composite material is taken out, under room temperature, dry 1 ~ 2d, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
Water-soluble titanium source described in operation A is any one in titanium trichloride, titanium tetrachloride or butyl titanate.
Alkaline matter described in operation A is any one in NaOH, potassium hydroxide, ammoniacal liquor, ethylenediamine, sodium carbonate, sodium acid carbonate or potash.
Wood substrate described in process B is any one in timber, bamboo wood or rattan material.
Described timber is any one in softwood or broadleaf, and softwood can be selected from pinus khasys, pinus yunnanensis, Huashan pine, Korean pine, larch etc., and broadleaf is optional from Birch, cherry, linden, carpinus turczaninowii, poplar, eucalyptus etc.
The moisture content of described wood substrate is 5 ~ 25%.
Water described in process B is deionized water.
The mass percent concentration of the low-surface energy substance solution described in operation C preferably 1%.
The solute of the low-surface energy substance solution described in operation C is any one in stearic acid, silicon fluoride or siloxanes.
Described stearic acid can be selected from any one in stearic acid, odium stearate or potassium stearate.
Described silicon fluoride can be selected from any one in 17 fluorine decyl triethoxysilanes, ten trifluoro octyltri-ethoxysilane or trifluoro propyl trimethoxy silane.
Described siloxanes can be selected from any one in MTMS, hexadecyl trimethoxy silane or octyl group trimethoxy silane.
The solvent of the low-surface energy substance solution described in operation C is any one in n-hexane, acetone or alcohol.
Process B and the room temperature described in operation C are 4 ~ 40 DEG C.
Process B and the room temperature described in operation C are preferably 15 ~ 30 DEG C.
embodiment 1
(1) preparation of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Be dispersed in by titanium trichloride in the sodium-chloride water solution of 6mol/L, magnetic agitation is even, obtains solution a, makes titanium trichloride concentration in the solution be 0.500mol/L.Added by NaOH in solution a, magnetic agitation is even, obtains solution b, i.e. precursor solution, makes NaOH concentration in the solution be 0.500mol/L.
By pending moisture content be 10% pinus yunnanensis timber be cut into the sheet of 0.1cmx1.58cmx5.13cm, immerse in precursor solution, 5d is reacted under room temperature, wood chip after process is taken out, clean by deionized water, dry 2d under room temperature, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure.
It is in the hexane solution of 17 fluorine decyl triethoxysilanes of 1% that the wood substrate composite material obtained in a upper operation is immersed mass percent, 0.2d is reacted under room temperature, then wood substrate composite material is taken out, dry 2d under room temperature, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
(2) Performance Detection of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Detection method: the method for contact angle determination, anti-ultraviolet aging experiment is shown in " AgriculturalScience & Technology " respectively, 3rd phase in 2014, first page number: 18 and " Holzforschung ", the 65th volume in 2011, first page number: 215.
Testing result: in table 1.
embodiment 2
(1) preparation of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Be dispersed in by titanium tetrachloride in the sodium-chloride water solution of 5mol/L, magnetic agitation is even, obtains solution a, makes titanium tetrachloride concentration in the solution be 0.010mol/L.Added by ethylenediamine in solution a, magnetic agitation is even, obtains solution b, i.e. precursor solution, makes ethylenediamine concentration in the solution be 0.010mol/L.
By pending moisture content be 15% pinus yunnanensis timber be cut into the sheet of 0.1cmx1.58cmx5.13cm, immerse in precursor solution, 1d is reacted under room temperature, wood chip after process is taken out, clean by deionized water, dry 1d under room temperature, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure.
It is in the hexane solution of ten trifluoro octyltri-ethoxysilane of 1% that the wood substrate composite material obtained in a upper operation is immersed mass percent, 0.5d is reacted under room temperature, then wood substrate composite material is taken out, dry 1d under room temperature, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
(2) Performance Detection of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Detection method: with embodiment 1.
Testing result: in table 1.
embodiment 3
(1) preparation of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Be dispersed in by titanium trichloride in the sodium-chloride water solution of 6mol/L, magnetic agitation is even, obtains solution a, makes titanium trichloride concentration in the solution be 0.001mol/L.Added by potassium hydroxide in solution a, magnetic agitation is even, obtains solution b, i.e. precursor solution, makes potassium hydroxide concentration in the solution be 0.001mol/L.
By pending moisture content be 5% pinus yunnanensis timber be cut into the sheet of 0.1cmx1.58cmx5.13cm, immerse in precursor solution, 10d is reacted under room temperature, wood chip after process is taken out, clean by deionized water, dry 1.5d under room temperature, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure.
It is in the stearic acetone soln of 1% that the wood substrate composite material obtained in a upper operation is immersed mass percent, 1d is reacted under room temperature, then taken out by wood substrate composite material, dry 2d under room temperature, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
(2) Performance Detection of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Detection method: with embodiment 1.
Testing result: in table 1.
embodiment 4
(1) preparation of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Be dispersed in by butyl titanate in the sodium-chloride water solution of 6mol/L, magnetic agitation is even, obtains solution a, makes butyl titanate concentration in the solution be 0.500mol/L.Added by sodium acid carbonate in solution a, magnetic agitation is even, obtains solution b, i.e. precursor solution, makes sodium acid carbonate concentration in the solution be 0.001mol/L.
By pending moisture content be 25% pinus khasys timber be cut into the sheet of 0.1cmx1.58cmx5.13cm, immerse in precursor solution, 3d is reacted under room temperature, wood chip after process is taken out, clean by deionized water, dry 2d under room temperature, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure.
It is in the ethanolic solution of the MTMS of 1% that the wood substrate composite material obtained in a upper operation is immersed mass percent, 0.2d is reacted under room temperature, then wood substrate composite material is taken out, dry 1.5d under room temperature, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
(2) Performance Detection of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Detection method: with embodiment 1.
Testing result: in table 1.
embodiment 5
(1) preparation of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Be dispersed in by titanium tetrachloride in the sodium-chloride water solution of 7mol/L, magnetic agitation is even, obtains solution a, makes titanium tetrachloride concentration in the solution be 0.250mol/L.Added by potash in solution a, magnetic agitation is even, obtains solution b, i.e. precursor solution, makes potash concentration in the solution be 0.400mol/L.
By pending moisture content be 20% pinus khasys timber be cut into the sheet of 0.1cmx1.58cmx5.13cm, immerse in precursor solution, 8d is reacted under room temperature, wood chip after process is taken out, clean by deionized water, dry 2d under room temperature, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure.
It is in the ethanolic solution of the hexadecyl trimethoxy silane of 1% that the wood substrate composite material obtained in a upper operation is immersed mass percent, 0.6d is reacted under room temperature, then wood substrate composite material is taken out, dry 2d under room temperature, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
(2) Performance Detection of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Detection method: with embodiment 1.
Testing result: in table 1.
embodiment 6
(1) preparation of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Be dispersed in by butyl titanate in the sodium-chloride water solution of 5mol/L, magnetic agitation is even, obtains solution a, makes butyl titanate concentration in the solution be 0.300mol/L.Added by sodium carbonate in solution a, magnetic agitation is even, obtains solution b, i.e. precursor solution, makes sodium carbonate concentration in the solution be 0.200mol/L.
By pending moisture content be 16% pinus khasys timber be cut into the sheet of 0.1cmx1.58cmx5.13cm, immerse in precursor solution, 6d is reacted under room temperature, wood chip after process is taken out, clean by deionized water, dry 1.5d under room temperature, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure.
It is in the ethanolic solution of octyl group trimethoxy silane of 1% that the wood substrate composite material obtained in a upper operation is immersed mass percent, 0.6d is reacted under room temperature, then wood substrate composite material is taken out, dry 1.5d under room temperature, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
(2) Performance Detection of the wood substrate composite material of hydrophobic, anti-ultraviolet aging of the present invention
Detection method: with embodiment 1.
Testing result: in table 1.
As shown in Table 1, the wood substrate composite material adopting the method for the invention to prepare has excellent hydrophobicity and anti-ultraviolet aging performance, can be applicable to humidity change greatly, moisture is high, intensity of sunshine is large, in the indoor and outdoor surroundings that time is long, greatly widen the application of wood substrate composite material, there is good popularizing application prospect.
The water static contact angle of the wood substrate composite material prepared by table 1 embodiment 1 ~ 6 and chromatic aberration value
| Embodiment sequence number | Water static contact angle/° | Chromatic aberration DE* |
| 1 | 159.6±3.1. | 8.1±1.1 |
| 2 | 154.3±3.6 | 9.9±1.7 |
| 3 | 150.2±3.3 | 10.2±2.1 |
| 4 | 152.9±3.9 | 9.4±2.4 |
| 5 | 156.6±2.9 | 8.8±1.6 |
| 6 | 155.4±3.2 | 8.6±1.5 |
| Untreated control wood substrate | 28.2±3.7 | 26.7±2.2 |
Claims (9)
1. the wood substrate composite material of hydrophobic a, anti-ultraviolet aging, it is characterized in that the superficial layer of described wood substrate composite material is the titanium dioxide layer with micro-nano secondary structure, its crystal structure is rutile-type, described in there is micro-nano secondary structure titanium dioxide layer be made up of the nano particle of diameter to be the micron particles of 1.5 ~ 5 μm and diameter be 20 ~ 200nm.
2. wood substrate composite material according to claim 1, is characterized in that the thickness of described titanium dioxide layer is 1 ~ 100 μm.
3. wood substrate composite material according to claim 1, is characterized in that described nano particle is positioned at the surface of the wood substrate between the surface of micron particles and/or micron particles.
4. wood substrate composite material according to claim 1, is characterized in that the static contact angle of described wood substrate composite material and water is 150 ~ 160 °, through 0.35Wm
-2ultraviolet radiation after 10 days, the chromatic aberration value of described wood substrate composite material is only 29 ~ 38% of blank wood substrate.
5. a preparation method for the wood substrate composite material of hydrophobic, anti-ultraviolet aging according to claim 1, is characterized in that comprising precursor solution preparation, multi-step impregnation and drying process, specifically comprises:
A, precursor solution are prepared: water-soluble titanium source be dispersed in the sodium-chloride water solution of 5 ~ 7mol/L, stir, obtain solution a, make water-soluble titanium source concentration in the solution be 0.001 ~ 0.500mol/L; Alkaline matter is added in solution a, stir, obtain solution b, i.e. precursor solution, make alkaline matter concentration in the solution be 0.001 ~ 0.500mol/L;
B, one-level dipping and drying: pending wood substrate is immersed in precursor solution, 1 ~ 10d is reacted under room temperature, wood substrate after process is taken out, wash, under room temperature, dry 1 ~ 2d, obtains the wood substrate composite material that superficial layer is the titanium dioxide layer with rutile-type micro-nano secondary structure;
C, second steepwater and drying: it is in the low-surface energy substance solution of 0.8 ~ 1.2% that the wood substrate composite material obtained in process B is immersed mass percent, 0.2 ~ 1d is reacted under room temperature, then wood substrate composite material is taken out, under room temperature, dry 1 ~ 2d, obtains the wood substrate composite material of objective hydrophobic, anti-ultraviolet aging.
6. preparation method according to claim 5, the water-soluble titanium source that it is characterized in that described in operation A is any one in titanium trichloride, titanium tetrachloride or butyl titanate.
7. preparation method according to claim 5, the alkaline matter that it is characterized in that described in operation A is any one in NaOH, potassium hydroxide, ammoniacal liquor, ethylenediamine, sodium carbonate, sodium acid carbonate or potash.
8. preparation method according to claim 5, the wood substrate that it is characterized in that described in process B is any one in timber, bamboo wood or rattan material.
9. preparation method according to claim 5, is characterized in that the solute of the low-surface energy substance solution described in operation C is any one in stearic acid, silicon fluoride or siloxanes.
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| CN106272773B (en) * | 2016-08-04 | 2017-12-15 | 北京林业大学 | A kind of super-hydrophobic timber and preparation method thereof |
| CN106217537B (en) * | 2016-09-07 | 2017-10-03 | 福建农林大学 | The simple and easy method that a kind of China fir surface hydrophobicity is modified |
| CN106319466A (en) * | 2016-10-12 | 2017-01-11 | 东北林业大学 | Bionic preparation method for high-adhesion super-hydrophobic surface on bamboo surface |
| CN106426447B (en) * | 2016-10-12 | 2018-04-24 | 东北林业大学 | The pollution-free processing method for improving timber weather resistance and double thin performances |
| CN106863507B (en) * | 2016-12-30 | 2019-03-08 | 亚振家居股份有限公司 | A method of timber hydrophobicity and stability are improved based on nano-titanium dioxide |
| CN107486904A (en) * | 2017-08-02 | 2017-12-19 | 宜华生活科技股份有限公司 | A kind of method of modifying for improving teak product surface anti-light aging performance |
| CN107627418A (en) * | 2017-09-20 | 2018-01-26 | 阜南县星光工艺品有限公司 | A kind of raising woodwork is water-fast and the processing method of light aging |
| CN107627419A (en) * | 2017-10-24 | 2018-01-26 | 阜阳市金木工艺品有限公司 | A kind of preparation method of the hydrophobic light aging resisting type composite wood of carried titanium dioxide |
| CN107674572A (en) * | 2017-11-13 | 2018-02-09 | 清远市蓝林新材料有限公司 | Damp-proof and moth-proof combined polyether glycol material for imitation wood furniture and preparation method thereof |
| CN108656273A (en) * | 2018-06-08 | 2018-10-16 | 阜南县宏达工艺品厂 | A kind of dyeing treatment process of wicker plaiting article bark raw material |
| CN109384947B (en) * | 2018-12-04 | 2021-07-13 | 哈尔滨工业大学 | Preparation method of titanium dioxide super-hydrophobic material with topological structure |
| CN109746176B (en) * | 2019-01-21 | 2022-07-12 | 福建省九竹工贸有限公司 | Spraying method of bamboo product |
| CN110434968A (en) * | 2019-08-15 | 2019-11-12 | 阜阳创启工艺品有限公司 | A kind of processing method for the vertical silk willow being used to prepare heat-resisting bamboo strainer |
| CN115723216A (en) * | 2022-11-17 | 2023-03-03 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of wood product waterproof light-aging-resistant dispersion liquid, product and application process thereof |
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