CN108943233A - A kind of mildew-proof treatment method of bamboo - Google Patents
A kind of mildew-proof treatment method of bamboo Download PDFInfo
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- CN108943233A CN108943233A CN201810686060.1A CN201810686060A CN108943233A CN 108943233 A CN108943233 A CN 108943233A CN 201810686060 A CN201810686060 A CN 201810686060A CN 108943233 A CN108943233 A CN 108943233A
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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
- 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
- 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
- B27K3/025—Controlling the process
-
- 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
- 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
- B27K3/20—Compounds of alkali metals or ammonium
-
- 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
- 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
- B27K5/0055—Radio-waves, e.g. microwaves
-
- 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
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
Abstract
The invention discloses a kind of mildew-proof treatment method of bamboo, include the following steps: to clean in bamboo, dissection, impregnate, air-dry, carries out microwave treatment, obtain material A；Material A is added in Vermins-proof mildew-proof agent and is impregnated, taking-up drains away the water, and drying obtains material B；Material B is impregnated in titanium colloidal sol, taking-up is put into baking oven, temperature control processing, is rinsed, and annealing obtains material C；Zinc acetate and sodium hydroxide are dissolved in methanol, mixed solution is made, bamboo wood is impregnated in mixed solution, is impregnated, is taken out, annealing obtains material D；Then, zinc nitrate and hexa is soluble in water, water solution A is made, then material D is impregnated in water solution A, impregnates, rinses, annealing.It is excellent by bamboo craftwork product anti-mold effect made of processing method of the present invention, it saves 36 months and occurs without mildew phenomena.
Description
Technical field
The present invention relates to technical field of bamboo product processing more particularly to a kind of mildew-proof treatment methods of bamboo.
Background technique
Bamboo is a kind of important forest reserves, has growth cycle short, and reproducibility is strong a little.Currently, China bamboo
Material is resourceful, and bamboo product yield and dosage are at the forefront in the world.But nutriment rich in bamboo, such as starch, egg
White matter, fat etc. are easy to generate rotten, mildew, this affects the quality of bamboo product, to bamboo under environmental condition appropriate
The commercial value of product causes damages and bamboo product major defect in practical applications, therefore needs to propose effective anti-
Mould processing method.
Summary of the invention
Based on background technique there are the problem of, the invention proposes a kind of mildew-proof treatment method of bamboo, at the present invention
Bamboo craftwork product anti-mold effect made of reason method is excellent, saves 36 months and occurs without mildew phenomena.
The invention proposes a kind of mildew-proof treatment methods of bamboo, include the following steps:
S1, bamboo is cleaned, dissection, is put into after impregnating 40-100min in 45-55 DEG C of water, air-dried, carried out at microwave
Reason, obtains material A；
S2, material A is added in Vermins-proof mildew-proof agent and is impregnated, taking-up drains away the water, and drying obtains material B；
S3, material B is impregnated to 15-25min in titanium colloidal sol, taking-up is put into baking oven, is handled controlled at 50-55 DEG C
Then 3-5h rinses 2-5min with the sodium carbonate liquor that concentration is 2-4wt%, then rinses 2-5min with deionized water, then exist
40-100min is made annealing treatment at 105-115 DEG C, obtains material C；
S4, zinc acetate and sodium hydroxide are dissolved in methanol, mixed solution is made, material C is impregnated in mixed solution, soaked
The stain time is 40-100min, makes annealing treatment 2-4h at 85-95 DEG C after taking out bamboo wood, obtains material D；Then, by zinc nitrate and six
Methenamine is soluble in water, and water solution A is made, then material D is impregnated in water solution A, controlled at 75-85 DEG C,
It is taken out after dipping 60-150min, rinses 4-7min with deionized water, then make annealing treatment 1-2h at 55-65 DEG C.
Preferably, in S1, the concrete operations of microwave treatment are as follows: by the bamboo after air-drying under the microwave power of 35-40KW
4-7min is heated, then heats 3-5min under the microwave power of 60-75KW.
Preferably, in S2, the moisture control of material B is in 8-10% after drying.
Preferably, in S2, the Vermins-proof mildew-proof agent is ordinary commercial products.
Preferably, the concrete operations of S2 are as follows: material A is added in the Vermins-proof mildew-proof agent that concentration is 1-5wt% and impregnates 4-8h,
Taking-up drains away the water, and being dried to moisture content is 8-10%, obtains material B.
Preferably, in S3, titanium colloidal sol is prepared by following technique: being 10- by 6-10g tetraisopropoxy titanium and 5-10mL concentration
The silver nitrate solution of 20wt% is added in 500-600mL deionized water, and the nitric acid solution that concentration is 50-65wt% is added dropwise, stirs
12-24h is mixed, titanium colloidal sol is obtained.
Preferably, in S4, in the mixed solution, the content of zinc acetate is 0.05-0.08mol/L；Sodium hydroxide contains
Amount is 0.02-0.04mol/L.
Preferably, in S4, in the water solution A, the content of zinc nitrate is 0.01-0.03mol/L；Hexa
Content is 0.02-0.05mol/L.
The present invention realizes the excellent fungicidal properties of bamboo by operation as follows, first carries out the bamboo impregnated at microwave
Reason, can remove nutriment in bamboo fibre, destroy the life condition of moth and bacterium completely, prevent from going mouldy and damage by worms；Secondly, will
Bamboo that microwave treatment is crossed, which is added in Vermins-proof mildew-proof agent, to be impregnated, and is then dried, and worm's ovum and various can be further killed in bamboo
Mould plays insect prevention and the fungicidal properties of enhancing bamboo wood；Finally, the present invention is also handled by extraction, received in bamboo material surface generation
Rice TiO2With the composite protection layer of nano-ZnO, because of nano-TiO2There is special electronic structure with nano-ZnO, electricity can be formed
The oxygen dissolved in son-hole pair, with water reacts, and generates the very strong superoxide anion radical of chemical activity and hydrogen
Oxygen radical attacks organic matter, biochemical reaction occurs with cell wall, cell membrane and intracellular substance, when encountering mould, directly
The cell for connecing attack mould, causes the organic matter degradation in fungal cell, kills mould with this, and be allowed to decompose, reach mould proof
Effect, and TiO2It while killing mould with nano-ZnO, itself do not decompose, dissolve out, make with lasting fungus and mildew resistance
With, on the other hand, TiO2Mould, which can not only be killed, with nano-ZnO can also decompose organic nutrient substance, to effectively inhibit mould
Mass propagation, further enhance fungicidal properties；In addition, the present invention, also in the preparation process of titanium colloidal sol, a small amount of silver of incorporation is right
Nanometer titanium dioxide layer is modified, due to the specific performance and titanium dioxide of nano material and the dual antibacterial function of silver ion
Can, the Anti-mildew capability of titanium dioxide is greatly improved, and antibacterial and mouldproof effect can be generated under illumination and non-illuminated conditions
Fruit, and anti-mold effect is lasting, stable, highly-safe.It is excellent by bamboo craftwork product anti-mold effect made of processing method of the present invention,
It saves 36 months and occurs without mildew phenomena.
Specific embodiment
Technical solution of the present invention is described in detail combined with specific embodiments below.
Embodiment 1
A kind of mildew-proof treatment method of bamboo, includes the following steps:
S1, bamboo is cleaned, dissection, is put into after impregnating 100min in 45 DEG C of water, air-dried, carried out microwave treatment, obtain
Material A；
S2, material A is added in Vermins-proof mildew-proof agent and is impregnated, taking-up drains away the water, and drying obtains material B；
S3, material B is impregnated to 15min in titanium colloidal sol, taking-up is put into baking oven, controlled at 55 DEG C of processing 3h, so
2min is rinsed with the sodium carbonate liquor that concentration is 4wt% afterwards, then rinses 5min with deionized water, then at 105 DEG C at annealing
100min is managed, material C is obtained；
S4, zinc acetate and sodium hydroxide are dissolved in methanol, mixed solution is made, material C is impregnated in mixed solution, soaked
The stain time is 40min, makes annealing treatment 2h at 95 DEG C after taking out bamboo wood, obtains material D；Then, by zinc nitrate and hexa-methylene four
Amine is soluble in water, and water solution A is made, then material D is impregnated in water solution A, controlled at 85 DEG C, after impregnating 60min
It takes out, rinses 7min with deionized water, then make annealing treatment 2h at 55 DEG C.
Embodiment 2
A kind of mildew-proof treatment method of bamboo, includes the following steps:
S1, bamboo is cleaned, dissection, is put into after impregnating 40min in 55 DEG C of water, air-dried, carried out microwave treatment, obtain object
Expect A；
S2, material A is added in Vermins-proof mildew-proof agent and is impregnated, taking-up drains away the water, and drying obtains material B；
S3, material B is impregnated to 25min in titanium colloidal sol, taking-up is put into baking oven, controlled at 50 DEG C of processing 5h, so
5min is rinsed with the sodium carbonate liquor that concentration is 2wt% afterwards, then rinses 2min with deionized water, then at 115 DEG C at annealing
40min is managed, material C is obtained；
S4, zinc acetate and sodium hydroxide are dissolved in methanol, mixed solution is made, material C is impregnated in mixed solution, soaked
The stain time is 100min, makes annealing treatment 4h at 85 DEG C after taking out bamboo wood, obtains material D；Then, by zinc nitrate and hexa-methylene four
Amine is soluble in water, and water solution A is made, then material D is impregnated in water solution A, controlled at 75 DEG C, after impregnating 150min
It takes out, rinses 4min with deionized water, then make annealing treatment 1h at 65 DEG C.
Embodiment 3
A kind of mildew-proof treatment method of bamboo, includes the following steps:
S1, bamboo is cleaned, dissection, is put into after impregnating 100min in 45 DEG C of water, air-dried, the bamboo after air-drying is existed
7min is heated under the microwave power of 35KW, is then heated 5min under the microwave power of 60KW, is obtained material A；
S2, material A is added in the Vermins-proof mildew-proof agent that concentration is 1wt% and impregnates 8h, taking-up drains away the water, and is dried to aqueous
Rate is 8%, obtains material B；
S3, material B is impregnated to 15min in titanium colloidal sol, taking-up is put into baking oven, controlled at 55 DEG C of processing 3h, so
2min is rinsed with the sodium carbonate liquor that concentration is 4wt% afterwards, then rinses 5min with deionized water, then at 105 DEG C at annealing
100min is managed, material C is obtained；
S4, zinc acetate and sodium hydroxide are dissolved in methanol, mixed solution is made, material C is impregnated in mixed solution, soaked
The stain time is 40min, makes annealing treatment 2h at 95 DEG C after taking out bamboo wood, obtains material D；Then, by zinc nitrate and hexa-methylene four
Amine is soluble in water, and water solution A is made, then material D is impregnated in water solution A, controlled at 85 DEG C, after impregnating 60min
It takes out, rinses 7min with deionized water, then make annealing treatment 2h at 55 DEG C；In the mixed solution, the content of zinc acetate is
0.05mol/L；The content of sodium hydroxide is 0.04mol/L；In the water solution A, the content of zinc nitrate is 0.01mol/L；Six
The content of methenamine is 0.05mol/L；
The preparation of the titanium colloidal sol: the silver nitrate solution that 6g tetraisopropoxy titanium and 10mL concentration are 10wt% is added to
In 600mL deionized water, the nitric acid solution that concentration is 50wt% is added dropwise, stirring for 24 hours, obtains titanium colloidal sol.
Embodiment 4
A kind of mildew-proof treatment method of bamboo, includes the following steps:
S1, bamboo is cleaned, dissection, is put into after impregnating 40min in 55 DEG C of water, air-dried, the bamboo after air-drying is existed
7min is heated under the microwave power of 35KW, is then heated 5min under the microwave power of 60KW, is obtained material A；
S2, material A is added in the Vermins-proof mildew-proof agent that concentration is 5wt% and impregnates 4h, taking-up drains away the water, and is dried to aqueous
Rate is 10%, obtains material B；
S3, material B is impregnated to 25min in titanium colloidal sol, taking-up is put into baking oven, controlled at 50 DEG C of processing 5h, so
5min is rinsed with the sodium carbonate liquor that concentration is 2wt% afterwards, then rinses 2min with deionized water, then at 115 DEG C at annealing
40min is managed, material C is obtained；
S4, zinc acetate and sodium hydroxide are dissolved in methanol, mixed solution is made, material C is impregnated in mixed solution, soaked
The stain time is 100min, makes annealing treatment 4h at 85 DEG C after taking out bamboo wood, obtains material D；Then, by zinc nitrate and hexa-methylene four
Amine is soluble in water, and water solution A is made, then material D is impregnated in water solution A, controlled at 75 DEG C, after impregnating 150min
It takes out, rinses 4min with deionized water, then make annealing treatment 1h at 65 DEG C；In the mixed solution, the content of zinc acetate is
0.05mol/L；The content of sodium hydroxide is 0.04mol/L；In the water solution A, the content of zinc nitrate is 0.01mol/L；Six
The content of methenamine is 0.05mol/L；
The preparation of titanium colloidal sol: the silver nitrate solution that 6g tetraisopropoxy titanium and 10mL concentration are 10wt% is added to
In 600mL deionized water, the nitric acid solution that concentration is 50wt% is added dropwise, stirring for 24 hours, obtains titanium colloidal sol.
Experimental example 1
During producing bamboo craftwork product, mould proof processing is carried out using the method for embodiment 1-4, after saving 36 months,
Anti-mold effect is examined, the results show that the processed bamboo craftwork product of method using embodiment 1-4 occur without mildew phenomena.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of mildew-proof treatment method of bamboo, which comprises the steps of:
S1, bamboo is cleaned, dissection, is put into after impregnating 40-100min in 45-55 DEG C of water, air-dried, carried out microwave treatment, obtain
To material A；
S2, material A is added in Vermins-proof mildew-proof agent and is impregnated, taking-up drains away the water, and drying obtains material B；
S3, material B is impregnated to 15-25min in titanium colloidal sol, taking-up is put into baking oven, controlled at 50-55 DEG C of processing 3-
Then 5h rinses 2-5min with the sodium carbonate liquor that concentration is 2-4wt%, then rinses 2-5min with deionized water, then exist
40-100min is made annealing treatment at 105-115 DEG C, obtains material C；
S4, zinc acetate and sodium hydroxide are dissolved in methanol, mixed solution is made, material C is impregnated in mixed solution, when dipping
Between be 40-100min, take out bamboo wood after make annealing treatment 2-4h at 85-95 DEG C, obtain material D；Then, by zinc nitrate and six methylenes
Urotropine is soluble in water, and water solution A is made, then material D is impregnated in water solution A, controlled at 75-85 DEG C, dipping
It is taken out after 60-150min, rinses 4-7min with deionized water, then make annealing treatment 1-2h at 55-65 DEG C.
2. mildew-proof treatment method according to claim 1, which is characterized in that in S1, the concrete operations of microwave treatment are as follows: will
Bamboo after air-drying heats 4-7min under the microwave power of 35-40KW, then heats 3- under the microwave power of 60-75KW
5min。
3. mildew-proof treatment method according to claim 1 or 2, which is characterized in that in S2, the moisture content of material B after drying
Control is in 8-10%.
4. mildew-proof treatment method according to claim 1-3, which is characterized in that the concrete operations of S2 are as follows: by object
Material A, which is added in the Vermins-proof mildew-proof agent that concentration is 1-5wt%, impregnates 4-8h, and taking-up drains away the water, and being dried to moisture content is 8-10%,
Obtain material B.
5. mildew-proof treatment method according to claim 1-4, which is characterized in that in S3, titanium colloidal sol presses following work
Skill preparation: the silver nitrate solution that 6-10g tetraisopropoxy titanium and 5-10mL concentration are 10-20wt% is added to 500-600mL
In deionized water, the nitric acid solution that concentration is 50-65wt% is added dropwise, stirs 12-24h, obtains titanium colloidal sol.
6. mildew-proof treatment method according to claim 1-5, which is characterized in that in S4, in the mixed solution,
The content of zinc acetate is 0.05-0.08mol/L；The content of sodium hydroxide is 0.02-0.04mol/L.
7. mildew-proof treatment method according to claim 1-6, which is characterized in that in S4, in the water solution A,
The content of zinc nitrate is 0.01-0.03mol/L；The content of hexa is 0.02-0.05mol/L.
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| CN111516071A (en) * | 2020-03-26 | 2020-08-11 | 南京林业大学 | Preparation method of corrosion-resistant mildew-proof recombined bamboo plate blank |
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| CN111516071A (en) * | 2020-03-26 | 2020-08-11 | 南京林业大学 | Preparation method of corrosion-resistant mildew-proof recombined bamboo plate blank |
| CN112873460A (en) * | 2021-02-23 | 2021-06-01 | 国际竹藤中心 | Environment-friendly electron beam irradiation treatment method for mildew prevention of bamboo products |
| CN114986638A (en) * | 2022-06-13 | 2022-09-02 | 浙江省林业科学研究院 | Preparation method of green mildew-proof bamboo wood for food contact |
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Application publication date: 20181207 |