CN112497391A - Mildew-proof and insect-proof treatment method for wood - Google Patents
Mildew-proof and insect-proof treatment method for wood Download PDFInfo
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- CN112497391A CN112497391A CN202011365655.0A CN202011365655A CN112497391A CN 112497391 A CN112497391 A CN 112497391A CN 202011365655 A CN202011365655 A CN 202011365655A CN 112497391 A CN112497391 A CN 112497391A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- 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
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
- B27K3/10—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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
-
- 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
- B27K2240/20—Removing fungi, molds or insects
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
A mildew-proof and insect-proof treatment method for wood belongs to the technical field of wood treatment. The method comprises the following steps: peeling the log, sawing into plates, air drying and drying in a cellar; reducing the moisture content of the dried wood in the cellar again, and putting the treated board into the mildew-proof and insect-proof finishing agent for vacuum pressurization treatment; and taking out the board subjected to vacuum pressurization treatment, drying again, placing the wood to a ventilated position, slicing and trimming to form a flat board. The method disclosed by the invention is simple in preparation process, convenient to operate and environment-friendly, and has excellent mildew-proof and insect-proof effects by combining the mildew-proof and insect-proof natural products such as the bark of the pagodatree, the cinnamon leaves, the ginkgo leaves, the bark of the white spruce, the camphor leaves and the like with the nano silver powder, the nano titanium dioxide, the linseed oil and the boric acid, so that a synergistic effect is achieved.
Description
Technical Field
The invention belongs to the technical field of wood treatment, and particularly relates to a mildew-proof and insect-proof treatment method for wood.
Background
The wood has unique excellent performance, and the wood material gives people a special beautiful appearance which cannot be counterbalanced by other decorative materials, so the wood plays an important role in the building industry, particularly in the decorative field all the time. China has abundant wood resources, particularly in recent years, the quantity of stored resources is greatly increased in the national forest planting, and the wood application is extremely wide. The mildew-eaten of wood is a fatal injury in the wood processing industry, is not solved for a long time, and greatly limits the development of the industry.
Chinese patent application with publication number CN 109664387A discloses a mildew and insect preventing agent for wood, which belongs to the technical field of mildew and insect prevention and is composed of the following raw materials: the invention relates to a Chinese herbal medicine preparation for treating the chronic bronchitis, which comprises the following components of murraya paniculata, mint, propylene glycol, ethylene diamine tetraacetic acid disodium, nano silicon dioxide, dodecyl dimethyl benzyl ammonium chloride, propylene carbonate, green tea, peach leaves, sodium benzoate, parachlorometaxylenol, dimethyl dicarbonate, ammonium chloride and sodium chloride, and compared with the prior art, the Chinese herbal medicine preparation has the following beneficial effects: the wood preservative is a low-toxicity bactericide, is environment-friendly, can be widely applied to daily life, can improve the wood permeability without influencing the mechanical property of the wood, and exerts the performances of corrosion prevention and insect prevention. However, the pesticide mainly prevents and treats termites, the control effect on fungi and bacteria of the phylum alga and plant of the kingdom of plants is not seen, and the mildew and even rot phenomenon of the wood caused by the pesticide cannot be controlled.
Disclosure of Invention
The technical problem to be solved is as follows: aiming at the technical problems, the invention provides the mildew-proof and insect-proof treatment method for the wood, which has the advantages of mildew resistance, good insect-proof effect and the like.
The technical scheme is as follows: the preparation method of the mildew-proof and insect-proof treatment method for the wood comprises the following steps:
firstly, peeling raw wood, sawing the raw wood into plates, then performing air drying for one month, and drying in a cellar until the water content is 19-21%;
step two, placing the dried wood in a constant temperature and humidity box with the relative humidity of 56-63% and the temperature of 20-25 ℃ to control the water content to be 7-13%;
putting the treated plate into a mildew-proof and insect-proof finishing agent for vacuum pressurization treatment, wherein the preparation process of the corrosion-proof finishing agent is as follows: taking 1-5 parts of pagodatree bark, 1-2 parts of cinnamon leaves, 1-2 parts of ginkgo leaves, 2-5 parts of picea aspera bark and 1-3 parts of camphor leaves according to the mass part ratio, putting the raw materials into a grinding machine, grinding the raw materials into particles of 100-200 meshes, adding 100-120 parts of sterile water, heating the mixture at the temperature of 60-80 ℃ for 2-4 hours, cooling the mixture to room temperature, centrifuging the mixture at 300-400 r/min for 30-45 min, taking supernatant, adding 0.1-0.3 part of nano silver powder, 0.3-0.45 part of nano titanium dioxide, 0.03-0.045 part of silane coupling agent, 2-3 parts of linseed oil and 1-2 parts of boric acid, and uniformly stirring the mixture;
and step four, taking out the board subjected to vacuum pressurization treatment, drying again, controlling the water content of the wood to be 6-12%, placing the wood to a ventilation position for 4-5 days, slicing and trimming to form a flat board.
Preferably, in the second step, the dried wood is placed in a constant temperature and humidity box with the relative humidity of 57% and the temperature of 22 ℃ so that the water content is controlled to be 8%.
Preferably, the preparation process of the anticorrosive finishing agent in the third step is as follows: taking 4 parts of pagodatree bark, 1 part of cinnamon leaf, 1 part of ginkgo leaf, 3 parts of white spruce bark and 2 parts of camphor tree leaf according to the mass part ratio, putting the materials into a grinding machine, crushing the materials into particles of 100-200 meshes, adding 120 parts of sterile water, heating the materials at the temperature of 75 ℃ for 3 hours, cooling the materials to room temperature, centrifuging the materials at the speed of 350 r/min for 40 minutes, taking supernatant, adding 0.15 part of nano silver powder, 0.32 part of nano titanium dioxide, 0.032 part of silane coupling agent, 2.5 parts of linseed oil and 2 parts of boric acid, and uniformly stirring the materials.
Preferably, the parameters of the vacuum pressurization treatment in the third step are as follows: the vacuum is kept at-0.08 to-0.09 MPa for 30 to 60min, and the infusion pressure is 0.8 to 2MPa for 1 to 2 hours; then vacuum is carried out for 30 min under the pressure of minus 0.05 to minus 0.08 MPa.
Preferably, in the fourth step, the wood board after vacuum pressure treatment is taken out and dried again, the moisture content of the wood is controlled to be 8%, and then the wood is placed in a ventilated place for 5 days and then is sliced and trimmed to form a flat wood board.
Has the advantages that: the method disclosed by the invention is simple in preparation process, convenient to operate and environment-friendly, and has excellent mildew-proof and insect-proof effects by combining the mildew-proof and insect-proof natural products such as the bark of the pagodatree, the cinnamon leaves, the ginkgo leaves, the bark of the white spruce, the camphor leaves and the like with the nano silver powder, the nano titanium dioxide, the linseed oil and the boric acid, so that a synergistic effect is achieved.
Detailed Description
The invention is further described with reference to specific examples. In the examples of the present specification, the silane coupling agent is KH 560.
Example 1
The preparation method of the mildew-proof and insect-proof treatment method for the wood comprises the following steps:
firstly, peeling raw wood, sawing the raw wood into plates, then performing air drying for one month, and drying the plates in a cellar until the water content is 19%;
step two, placing the dried wood in a constant temperature and humidity box with the relative humidity of 56% and the temperature of 20 ℃ to control the water content to be 7%;
putting the treated plate into a mildew-proof and insect-proof finishing agent for vacuum pressurization treatment, wherein the preparation process of the corrosion-proof finishing agent is as follows: taking 1 part of pagodatree bark, 1 part of cinnamon leaf, 1 part of ginkgo leaf, 2 parts of white spruce bark and 1 part of camphor tree leaf according to the mass part ratio, putting the materials into a grinding machine, crushing the materials into particles of 100 meshes, then adding 100 parts of sterile water, heating the materials at the temperature of 60 ℃ for 2 hours, cooling the materials to room temperature, centrifuging the materials at the speed of 300 r/min for 45 minutes, taking supernatant, adding 0.1 part of nano silver powder, 0.3 part of nano titanium dioxide, 0.03 part of silane coupling agent, 2 parts of linseed oil and 1 part of boric acid, and uniformly stirring the mixture;
and step four, taking out the wood board subjected to vacuum pressurization treatment, drying again, controlling the water content of the wood to be 6%, placing the wood to a ventilated place for 4 days, slicing and trimming to form a flat wood board.
The parameters of the vacuum pressurization treatment are as follows: the front vacuum is-0.08 MPa, the time is 30 min, the infusion pressure is 0.8 MPa, and the time is 1 h; then vacuum-0.05 MPa for 30 min. The vacuum pressurization treatment process comprises the following steps: putting the wood into a vacuum treatment tank, vacuumizing to a certain vacuum degree, and keeping the vacuum for a certain vacuum time (pre-vacuum); adding a preservative into the treatment tank under vacuum, then recovering the normal pressure, pressurizing to a certain pressure, maintaining the pressure for a period of time (infusion pressure), releasing the pressure to the normal pressure, and discharging the liquid in the treatment tank to a liquid preparation tank; and (3) vacuumizing the treatment tank to a certain vacuum degree and maintaining for a period of time (post-vacuum), recovering the normal pressure of the treatment tank, discharging the liquid in the treatment tank, opening the cover of the treatment tank, and taking out the treated wood.
Example 2
The preparation method of the mildew-proof and insect-proof treatment method for the wood comprises the following steps:
firstly, peeling raw wood, sawing the raw wood into plates, then performing air drying for one month, and drying the plates in a cellar until the water content is 21%;
step two, placing the dried wood in a constant temperature and humidity box with the relative humidity of 63% and the temperature of 25 ℃ to control the water content to be 13%;
putting the treated plate into a mildew-proof and insect-proof finishing agent for vacuum pressurization treatment, wherein the preparation process of the corrosion-proof finishing agent is as follows: according to the mass ratio, 5 parts of pagodatree bark, 2 parts of cinnamon leaf, 2 parts of ginkgo leaf, 5 parts of white spruce bark and 3 parts of camphor leaf are taken and put into a grinder to be ground into 200-mesh particles, then 120 parts of sterile water is added, the mixture is heated for 4 hours at the temperature of 80 ℃, cooled to room temperature, centrifuged at 400 r/min for 45 minutes, taken supernatant, added with 0.3 part of nano silver powder, 0.45 part of nano titanium dioxide, 0.045 part of silane coupling agent, 3 parts of linseed oil and 2 parts of boric acid and stirred evenly;
and step four, taking out the wood board subjected to vacuum pressurization treatment, drying again, controlling the water content of the wood to be 12%, placing the wood to a ventilated place for 5 days, slicing and trimming to form a flat wood board.
The parameters of the vacuum pressurization treatment are as follows: the front vacuum is-0.09 MPa, the time is 60min, the infusion pressure is 2MPa, and the time is 2 h; then vacuum-0.08 MPa for 30 min. The vacuum pressurization treatment process comprises the following steps: putting the wood into a vacuum treatment tank, vacuumizing to a certain vacuum degree, and keeping the vacuum for a certain vacuum time (pre-vacuum); adding a preservative into the treatment tank under vacuum, then recovering the normal pressure, pressurizing to a certain pressure, maintaining the pressure for a period of time (infusion pressure), releasing the pressure to the normal pressure, and discharging the liquid in the treatment tank to a liquid preparation tank; and (3) vacuumizing the treatment tank to a certain vacuum degree and maintaining for a period of time (post-vacuum), recovering the normal pressure of the treatment tank, discharging the liquid in the treatment tank, opening the cover of the treatment tank, and taking out the treated wood.
Example 3
The preparation method of the mildew-proof and insect-proof treatment method for the wood comprises the following steps:
firstly, peeling raw wood, sawing the raw wood into plates, then performing air drying for one month, and drying the plates in a cellar until the water content is 20%;
step two, placing the dried wood in a constant temperature and humidity box with the relative humidity of 57% and the temperature of 22 ℃ to control the water content to be 8%;
putting the treated plate into a mildew-proof and insect-proof finishing agent for vacuum pressurization treatment, wherein the preparation process of the corrosion-proof finishing agent is as follows: taking 4 parts of pagodatree bark, 1 part of cinnamon leaf, 1 part of ginkgo leaf, 3 parts of picea aspera bark and 2 parts of camphor tree leaf, putting the materials into a grinding machine, crushing the materials into particles of 200 meshes, adding 120 parts of sterile water, heating the materials at the temperature of 75 ℃ for 3 hours, cooling the materials to room temperature, centrifuging the materials at the speed of 350 r/min for 40 minutes, taking supernatant, adding 0.15 part of nano silver powder, 0.32 part of nano titanium dioxide, 0.032 part of silane coupling agent, 2.5 parts of linseed oil and 2 parts of boric acid, and uniformly stirring the mixture;
and step four, taking out the wood board subjected to vacuum pressurization treatment, drying again, controlling the water content of the wood to be 8%, placing the wood to a ventilated place for 5 days, slicing and trimming to form a flat wood board.
The parameters of the vacuum pressurization treatment are as follows: the front vacuum is-0.09 MPa, the time is 40 min, the infusion pressure is 2MPa, and the time is 1 h; then the vacuum is-0.06 MPa for 30 min. The vacuum pressurization treatment process comprises the following steps: putting the wood into a vacuum treatment tank, vacuumizing to a certain vacuum degree, and keeping the vacuum for a certain vacuum time (pre-vacuum); adding a preservative into the treatment tank under vacuum, then recovering the normal pressure, pressurizing to a certain pressure, maintaining the pressure for a period of time (infusion pressure), releasing the pressure to the normal pressure, and discharging the liquid in the treatment tank to a liquid preparation tank; and (3) vacuumizing the treatment tank to a certain vacuum degree and maintaining for a period of time (post-vacuum), recovering the normal pressure of the treatment tank, discharging the liquid in the treatment tank, opening the cover of the treatment tank, and taking out the treated wood.
The wood treated in examples 1-3 was tested for mold and insect resistance:
and (3) mildew resistance test: the original wood sample and the wood treated by the method are placed in a humid environment with the RH of about 90 percent to carry out a mildew experiment, and the mildew resistance of the original wood sample and the mildew resistance of the sample are compared after 60 days.
Insect prevention test: the termite resistance tests were conducted with reference to the american wood protection association standard AWPAE 1-09. The termites used for the test were termites. The test duration is one month, the mothproof grade of the wood treated by the method is 10 grade, and the mass loss rate is 1.9 percent.
Claims (5)
1. The wood mildew-proof and insect-proof treatment method is characterized by comprising the following steps:
firstly, peeling raw wood, sawing the raw wood into plates, then performing air drying for one month, and drying in a cellar until the water content is 19-21%;
step two, placing the dried wood in a constant temperature and humidity box with the relative humidity of 56-63% and the temperature of 20-25 ℃ to control the water content to be 7-13%;
putting the treated plate into a mildew-proof and insect-proof finishing agent for vacuum pressurization treatment, wherein the preparation process of the corrosion-proof finishing agent is as follows: taking 1-5 parts of pagodatree bark, 1-2 parts of cinnamon leaves, 1-2 parts of ginkgo leaves, 2-5 parts of picea aspera bark and 1-3 parts of camphor leaves according to the mass part ratio, putting the raw materials into a grinding machine, grinding the raw materials into particles of 100-200 meshes, adding 100-120 parts of sterile water, heating the mixture at the temperature of 60-80 ℃ for 2-4 hours, cooling the mixture to room temperature, centrifuging the mixture at 300-400 r/min for 30-45 min, taking supernatant, adding 0.1-0.3 part of nano silver powder, 0.3-0.45 part of nano titanium dioxide, 0.03-0.045 part of silane coupling agent, 2-3 parts of linseed oil and 1-2 parts of boric acid, and uniformly stirring the mixture;
and step four, taking out the board subjected to vacuum pressurization treatment, drying again, controlling the water content of the wood to be 6-12%, placing the wood to a ventilation position for 4-5 days, slicing and trimming to form a flat board.
2. A mildew and insect preventing treatment method for wood according to claim 1, characterized in that in the second step, the dried wood is placed in a constant temperature and humidity box with a relative humidity of 57% and a temperature of 22 ℃ to control the water content to 8%.
3. The mildew-proof and insect-proof treatment method for the wood according to claim 1, characterized in that the preparation process of the preservative finishing agent in the third step is as follows: taking 4 parts of pagodatree bark, 1 part of cinnamon leaf, 1 part of ginkgo leaf, 3 parts of white spruce bark and 2 parts of camphor tree leaf according to the mass part ratio, putting the materials into a grinding machine, crushing the materials into particles of 100-200 meshes, adding 120 parts of sterile water, heating the materials at the temperature of 75 ℃ for 3 hours, cooling the materials to room temperature, centrifuging the materials at the speed of 350 r/min for 40 minutes, taking supernatant, adding 0.15 part of nano silver powder, 0.32 part of nano titanium dioxide, 0.032 part of silane coupling agent, 2.5 parts of linseed oil and 2 parts of boric acid, and uniformly stirring the materials.
4. The method for mildew and insect prevention treatment of wood according to claim 1, wherein the parameters of the vacuum pressurization treatment in the third step are as follows: the vacuum is kept at-0.08 to-0.09 MPa for 30 to 60min, and the infusion pressure is 0.8 to 2MPa for 1 to 2 hours; then vacuum is carried out for 30 min under the pressure of minus 0.05 to minus 0.08 MPa.
5. A mildew and insect prevention treatment method for wood according to claim 1, characterized in that in the fourth step, the wood board after vacuum pressurization treatment is taken out and dried again, the moisture content of the wood is controlled at 8%, and then the wood is placed in a ventilated place for 5 days and then sliced and trimmed to form a flat wood board.
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| CN202011365655.0A CN112497391A (en) | 2020-11-28 | 2020-11-28 | Mildew-proof and insect-proof treatment method for wood |
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| CN202011365655.0A CN112497391A (en) | 2020-11-28 | 2020-11-28 | Mildew-proof and insect-proof treatment method for wood |
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Citations (5)
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|---|---|---|---|---|
| JP2014156715A (en) * | 2013-02-15 | 2014-08-28 | Eiichi Nakagawa | Environment purifying flame-resisting heat insulation building material |
| CN104845525A (en) * | 2014-02-13 | 2015-08-19 | 郑垠基 | Natural antibacterial waterproof composition for soil and wood and method for manufacturing the same |
| CN105108860A (en) * | 2015-07-20 | 2015-12-02 | 孙晨 | Environment-friendly mildew-proof softener for wickers |
| CN108000654A (en) * | 2017-11-27 | 2018-05-08 | 北京林业大学 | Nanometer Ag-TiO2Wood mould antiseptic and its preparation method and application |
| CN108312273A (en) * | 2018-02-11 | 2018-07-24 | 广西荔浦安吉利木业有限公司 | A kind of timber protective agent and preparation method thereof |
-
2020
- 2020-11-28 CN CN202011365655.0A patent/CN112497391A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014156715A (en) * | 2013-02-15 | 2014-08-28 | Eiichi Nakagawa | Environment purifying flame-resisting heat insulation building material |
| CN104845525A (en) * | 2014-02-13 | 2015-08-19 | 郑垠基 | Natural antibacterial waterproof composition for soil and wood and method for manufacturing the same |
| CN105108860A (en) * | 2015-07-20 | 2015-12-02 | 孙晨 | Environment-friendly mildew-proof softener for wickers |
| CN108000654A (en) * | 2017-11-27 | 2018-05-08 | 北京林业大学 | Nanometer Ag-TiO2Wood mould antiseptic and its preparation method and application |
| CN108312273A (en) * | 2018-02-11 | 2018-07-24 | 广西荔浦安吉利木业有限公司 | A kind of timber protective agent and preparation method thereof |
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| 王建国等: "《中国白蚁防治研究及其应用 高道蓉论文选集》", 30 April 2016 * |
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Application publication date: 20210316 |