Mildew-proof antibacterial bamboo-wood curtain material and preparation method thereof

Abstract

The invention discloses a mildew-proof and antibacterial bamboo-wood curtain material and a preparation method thereof, and belongs to the field of building materials. The material is prepared from wormwood, golden cypress, tea polyphenol, nano-zinc oxide, chitosan, a silane coupling agent and bamboo wood through the processes of nitrogen carbonization, ultrasonic extraction of natural components, plasma activation, microwave curing, silane hydrophobic modification and the like. Flavones, volatile oil, phellodendron berberine and tea polyphenols are synergistically antibacterial through multiple mechanisms of blocking metabolism, destroying cell membranes and the like, nano-zinc oxide photocatalysis and a chitosan cross-linked network are combined, a composite antibacterial system with the antibacterial rate exceeding 99% is formed, a hydrophobic layer with the contact angle larger than or equal to 93.2 degrees is constructed through a silane coupling agent, the water content is smaller than or equal to 8%, and mold growth is fundamentally inhibited. Tests show that the compressive strength of the material is improved by 22%, the antibacterial rate still reaches 96.2% after 50 times of water washing, and the material has the characteristics of high-efficiency antibacterial property, lasting mildew resistance, hydrophobicity, moisture resistance and high strength, and is suitable for bamboo and wood products such as curtains in a high-humidity environment.

Description

Technical Field

[0001] This invention belongs to the field of building materials, and in particular relates to a mildew-proof and antibacterial bamboo and wood curtain material and its preparation method. Background Technology

[0002] In the field of mildew and antibacterial properties of bamboo and wood curtain materials, existing technologies mostly rely on single antibacterial components or simple physical treatments, resulting in incomplete antibacterial mechanisms and low antibacterial efficiency. The traditional lime water-Chinese herbal medicine boiling method only destroys part of the bacterial cell membrane through the alkaline environment of lime water. Combined with the inhibition of specific enzyme activities by Chinese herbal medicine components, its antibacterial rate is only 72.3%, and the mildew prevention level is 3. It cannot effectively deal with the problem of microbial reproduction in high humidity environments, and single components are difficult to form a synergistic blockade against multiple targets such as DNA replication and metabolic pathways.

[0003] Another type of technology uses a silver ion-tung oil composite treatment. Although the antibacterial rate can be increased to 91.2% by taking advantage of the oxidizing properties of silver ions, the antibacterial effect of silver ions alone has obvious limitations. On the one hand, its inhibitory effect on fungi such as mold is weak and it is easy to induce microorganisms to develop resistance. On the other hand, the antibacterial rate of the tung oil coating formed by physical adsorption drops sharply to 71.3% after 50 water washes, which cannot meet the long-term use requirements of curtain materials, and the antibacterial activity is significantly reduced in low light environment.

[0004] The common shortcomings of existing technologies lie in the narrow antibacterial spectrum due to the single antibacterial component, the lack of synergistic effects between natural components such as Artemisia argyi flavonoids and Phellodendron amurense berberine and nanomaterials, and the fact that traditional processes only introduce antibacterial agents through surface coating without achieving chemical bonding with the bamboo matrix, resulting in low coating strength, poor durability, and insufficient hydrophobicity, failing to fundamentally destroy the high-humidity environment for mold growth. Therefore, this patent develops a bamboo and wood curtain material that combines multi-mechanism synergistic antibacterial properties, hydrophobic modification, and long-lasting durability. Summary of the Invention

[0005] To address the problem that traditional bamboo and wood window materials rely on a single antibacterial component and have a low antibacterial rate.

[0006] To address the above problems, the present invention provides the following technical solution:

[0007] A mildew-proof and antibacterial bamboo and wood curtain material, comprising the following components:

[0008] Anti-mildew and antibacterial coating: 50-60 parts Artemisia argyi, 30-40 parts Phellodendron amurense, 20-30 parts tea polyphenols, 5-10 parts nano zinc oxide, 5-10 parts chitosan with a deacetylation degree ≥90%, 2-5 parts silane coupling agent (KH-550), and 0.5-1 part citric acid.

[0009] Matrix material: bamboo.

[0010] Preferably, the flavonoids in the mugwort are mainly rich in quercetin and kaempferol, and the volatile oils are mainly composed of eucalyptol and thujone.

[0011] Preferably, the main chemical substance in which the phellodendron bark exerts its effect is berberine.

[0012] Preferably, the core component of the tea polyphenols is a catechin compound.

[0013] Preferably, the antibacterial and antifungal properties achieve an antibacterial rate of 99.7% and an antifungal grade of 0.

[0014] A method for preparing anti-mildew and antibacterial bamboo and wood curtain material

[0015] S1: Select bamboo or hardwood with a density of 0.6g / cm3 and cut it into strips with a thickness of 0.5-1mm and a width of 10-20mm;

[0016] S2: Place the material prepared in S1 in a sealed carbonization furnace and carbonize it at 180-220℃ for 2-3 hours, adding water vapor during the carbonization process;

[0017] S3: Weigh 50 parts of dried mugwort, 30 parts of phellodendron bark, and 20 parts of tea polyphenols, mix them evenly, then add ethanol solution and extract by ultrasonication for 2 hours, then filter under reduced pressure to remove ethanol;

[0018] S4: Add 5 parts of nano zinc oxide with a particle size of 50-80nm and 5 parts of chitosan with a degree of deacetylation ≥90% to the concentrated solution in S3. Adjust the pH to 5.5-6.0 with 0.1M acetic acid solution, and then stir until a stable nano-natural component composite gel is formed.

[0019] S5: Place the carbonized material in a plasma machine and process it in an argon atmosphere for 3-5 minutes;

[0020] S6: Immerse the treated material from S5 into the antibacterial composite sol prepared in S4, then place the system under ultrasonic immersion for 15-20 minutes, and then place the product in a microwave drying oven to cure for 10-15 minutes.

[0021] S7: Prepare 2 parts of silane coupling agent, add 0.5 parts of citric acid as catalyst, immerse the cured material in S6 into the solution for 1-2 minutes, then place the material in an oven to dry for 30 minutes, and finally irradiate the material with an ultraviolet lamp for 5-8 minutes.

[0022] Preferably, the sealed environment in S2 is a nitrogen environment, wherein the humidity range is between 30-50%.

[0023] Preferably, the power of the plasma machine in S5 is 100-150W and the vacuum degree is 10-20Pa.

[0024] Preferably, in S6, the sol system is impregnated at 30-40°C using 40kHz ultrasonic waves.

[0025] Preferably, the temperature of the oven in S7 is set to 60°C, and the wavelength of the ultraviolet light is set to 365nm.

[0026] The effects and advantages of the anti-mildew and antibacterial bamboo and wood curtain material and its preparation method of the present invention:

[0027] 1. This patent utilizes natural ingredients such as mugwort, phellodendron bark, and tea polyphenols, combined with the synergistic effect of nano zinc oxide and chitosan, to form a multi-dimensional antibacterial network that blocks metabolism, disrupts membrane structure, inhibits DNA replication, denatures proteins, and reduces oxidative stress, achieving an inhibition rate of over 99% against molds and bacteria.

[0028] 2. In this patent, 2% silane coupling agent forms a dense -Si-O-Si- crosslinked network on the surface of bamboo and wood, increasing the surface contact angle of the material from 40° to over 90° and reducing the moisture content to below 8%, thereby destroying the high-humidity environment required for mold growth from the root. At the same time, chitosan and nano zinc oxide form a crosslinked network through microwave drying, firmly anchoring the antibacterial components to the surface of bamboo and wood, avoiding the problem of easy peeling off of traditional coatings. After 50 water washes, the antibacterial rate still remains above 95%, achieving long-lasting anti-mold and antibacterial effect.

[0029] 3. This patent uses a density of 0.6 g / cm³. 3 Bamboo is carbonized with nitrogen at 180-220℃ and then in a 30-50% humidity environment regulated by water vapor. This process densifies the internal structure of the bamboo, increasing its compressive strength by 20%. Combined with argon plasma activation treatment, the surface roughness of the substrate increases by 30%, and the specific surface area expands, significantly enhancing the adsorption capacity of the antibacterial composite sol and increasing the bonding strength between the coating and the bamboo by 40%.

[0030] 4. This patent utilizes 40kHz ultrasound-assisted extraction of natural components, increasing the extraction rate of Artemisia argyi flavonoids and berberine by 35%, improving the dispersibility of nano zinc oxide in sol by 60% and preventing agglomeration. Microwave drying accelerates the cross-linking between chitosan molecules, forming a uniform antibacterial film with a thickness of 0.5-1μm on the bamboo and wood surface. Compared with traditional hot air drying, the component loading efficiency is increased by 50%, and the uniformity error of nanoparticle distribution is <5%.

[0031] 5. This patent utilizes 365nm ultraviolet light to stimulate the photocatalytic activity of nano-zinc oxide, continuously generating hydroxyl radicals to kill attached microorganisms. Even in low-light environments, it can maintain its antibacterial effect through natural light. The silane coating and the hydroxyl groups on the bamboo and wood surface cross-link through ultraviolet light to form a chemically bonded hydrophobic layer. This makes the material's moisture absorption <0.5% in an environment with a relative humidity of 85% for 24 hours, significantly better than untreated bamboo. It constructs an environmentally adaptable protection system from four dimensions: antibacterial, anti-mildew, hydrophobic, and photocatalytic, meeting the long-term use needs of high humidity and variable light environments. Attached Figure Description

[0032] Figure 1 This is a flowchart illustrating the preparation method of an anti-mildew and antibacterial bamboo and wood curtain material according to the present invention. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Example 1

[0036] This embodiment provides a method for preparing anti-mildew and antibacterial bamboo and wood curtain materials, suitable for environments with high humidity. The implementation details are as follows:

[0037] Experimental objective:

[0038] To prepare a bamboo and wood curtain material that is mildew-proof and antibacterial.

[0039] Experimental materials:

[0040] Bamboo, Artemisia argyi, Phellodendron amurense, tea polyphenols, ethanol, nano zinc oxide, chitosan with a degree of deacetylation ≥90%, 0.1M acetic acid solution, 2% silane coupling agent.

[0041] Experimental steps:

[0042] S1: Select 0.6g / cm 3 The bamboo material is cut into strips with a thickness of 0.5-1mm and a width of 10-20mm;

[0043] S2: Place the material prepared in S1 in a sealed carbonization furnace and carbonize it at 180-220℃ for 2-3 hours in a nitrogen atmosphere. During the carbonization process, add water vapor to maintain the humidity of the system between 30-50%.

[0044] S3: Weigh 50 parts of dried mugwort, 30 parts of phellodendron bark, and 20 parts of tea polyphenols and mix them evenly. Then add ethanol solution and extract for 2 hours under ultrasonic assistance at 40kHz. Then filter under reduced pressure to remove ethanol.

[0045] S4: Add 5 parts of nano zinc oxide with a particle size of 50-80nm and 5 parts of chitosan with a degree of deacetylation ≥90% to the concentrated solution in S3. Adjust the pH to 5.5-6.0 with 0.1M acetic acid solution, and then stir until a stable nano-natural component composite gel is formed.

[0046] S5: Place the carbonized material in plasma and process it for 3-5 minutes under the conditions of argon atmosphere, power of 100-150W and vacuum degree of 10-20Pa.

[0047] S6: Immerse the treated material from S5 into the antibacterial composite sol prepared in S4, then place the system under ultrasonic conditions of 30-40℃ and 40kHz for 15-20 minutes for stirring and impregnation, and then place the product in a microwave drying oven for 10-15 minutes for curing.

[0048] S7: Prepare 2% silane coupling agent, add 0.5% citric acid as catalyst, immerse the cured material in S6 into the solution for 1-2 minutes, then place the material in a 60℃ oven to dry for 30 minutes, and finally irradiate the material with a 365nm wavelength ultraviolet lamp for 5-8 minutes.

[0049] Experimental results: See Table 1 for details.

[0050] Table 1: Test Results of Example 1

[0051] Anti-mildew rating Antibacterial Contact angle compressive strength Example 1 Level 0 Antibacterial rate 99.7% 93.2° 62.3MPa

[0052] The single-component Phellodendron bark showed a bacterial inhibition rate of 68%, while this patent, through multi-dimensional compounding, achieved an inhibition rate of 99.7%, validating the technical advantages of the synergistic antibacterial effect of multiple components, including Artemisia argyi flavonoids, Phellodendron bark berberine, and nano-zinc oxide. A surface contact angle of 93.2° effectively creates a dry environment that hinders mold growth, and the compressive strength of 62.3 MPa is 22% higher than that of the original bamboo material, combined with the chitosan cross-linked network formed by microwave drying. The flavonoids in Artemisia argyi are mainly rich in quercetin and kaempferol, which bind to oxidoreductases in microorganisms, blocking their metabolic pathways. Simultaneously, flavonoids scavenge free radicals produced by microbial metabolism, thereby inhibiting reproduction. The volatile oils are rich in eucalyptol and thujone, which cause intracellular leakage by penetrating the microbial cell membrane. Berberine binds to the double helix structure of bacterial DNA, inhibiting topoisomerase activity and preventing DNA replication. It also alters bacterial cell membrane permeability, causing electrolyte imbalance within bacteria and inhibiting the adhesion and aggregation of microbial biofilms. Berberine binds to the double helix structure of bacterial DNA, inhibiting topoisomerase activity and preventing DNA replication. It also alters bacterial cell membrane permeability, causing electrolyte imbalance and inhibiting microbial biofilm adhesion and aggregation. The core components of tea polyphenols are catechins, which bind to microbial surface proteins via hydrogen bonds, leading to protein denaturation.

[0053] Comparative Example 1

[0054] This embodiment provides a method for preparing insect- and mildew-resistant bamboo and wood using lime water and traditional Chinese medicine steaming. The implementation details are as follows:

[0055] Experimental objective:

[0056] Bamboo and wood products prepared using lime water and traditional Chinese medicine are insect- and mildew-resistant.

[0057] Experimental materials:

[0058] Pond silt, alum, orange peel, lavender, evodia rutaecarpa, polyethylene wax

[0059] Experimental steps:

[0060] S1: Wrap the bamboo with pond silt to a thickness of 3-5cm, place it in a humid environment and let it stand for 6-8 days, then expose it to the sun for 2-3 days, rinse it with clean water, and then place it in a newly prepared lime water pool and steam it for 40-60 minutes.

[0061] S2: After cutting the bamboo from S1, soak it in 40-60ppm alum water for 1-2 hours. Then place the bamboo strips in a sealed steam room, add the herbal liquid of orange peel, lavender and evodia to the water tank, and steam it for 2-3 hours.

[0062] S3: Place the bamboo strips at 40-50℃ to dry to constant weight, and finally spray the surface with a waterproof varnish of 1-1.5% polyethylene wax.

[0063] Experimental results: See Table 2 for details.

[0064] Table 2: Test Results of Comparative Example 1

[0065] Anti-mildew rating Antibacterial Contact angle compressive strength Comparative Example 1 Level 3 Antibacterial rate: 72.3% 65.8° 55.1MPa

[0066] In this method, silt adsorbs nutrients such as sugars from the bamboo, and lime water steam fumigation seals the pores of the bamboo fibers. This comparative example uses a traditional lime water-traditional Chinese medicine steaming method to prepare insect-proof and mildew-proof bamboo and wood materials. Through pond silt coating, lime water fumigation, and polyethylene wax coating, the limitations of existing technologies in anti-mildew and antibacterial performance are verified. Its inhibition rate against *E. coli* is only 72.3%, significantly lower than the 99.7% of Example 1, indicating that the antibacterial mechanism of a single lime water alkaline environment and traditional Chinese medicine components is significantly insufficient. The surface contact angle is 65.8° and the water content is 12.3%, failing to meet the key hydrophobic modification indicators of ≥90° and ≤8% water content in claim 7 of this invention, thus failing to effectively block the high-humidity environment for mold growth. The compressive strength is 55.1 MPa, only 7.6% higher than the original bamboo, and the bonding strength of the polyethylene wax coating is only grade 2B. After 50 washes, the antibacterial rate drops sharply to 58.7%, and the durability is far inferior to the microwave curing crosslinking process of Example 1.

[0067] Comparative Example 2

[0068] A tung oil-silver ion composite treatment method is provided, the implementation details of which are as follows:

[0069] Experimental materials:

[0070] Alum powder, silver ion antibacterial agent, edible salt, tung oil

[0071] Experimental objective:

[0072] Prepared using the tung oil-silver ion composite method.

[0073] Experimental steps:

[0074] S1: Cut the raw bamboo into sections and steam it in boiling water with alum powder and salt for 13-15 hours;

[0075] S2: After steaming, soak the bamboo sections in silver ion antibacterial agent for 50-60 minutes;

[0076] S3: After drying bamboo sections, soak them in tung oil for 10-15 minutes, then remove and dry them. Repeat this process 3 times to form a dense oil film.

[0077] Experimental results: See Table 3 for details.

[0078] Table 3: Test Results of Comparative Example 2

[0079] Anti-mildew rating Antibacterial Contact angle compressive strength Comparative Example 2 Level 2 Antibacterial rate: 91.2% 78.5° 57.8MPa

[0080] This comparative example uses tung oil and prepares bamboo and wood materials through boiling water steaming, silver ion soaking, and tung oil coating processes. Its antibacterial rate against *E. coli* is 91.2%, lower than the 99.7% of Example 1, indicating that the single silver ion antibacterial mechanism has limited ability to inhibit mold and cannot achieve a broad-spectrum effect of multi-component synergistic antibacterial action. The surface contact angle is 78.5°, which does not meet the key hydrophobic modification index of ≥90° in claim 7 of this invention. The moisture content of 10.5% is still higher than the critical value for mold growth, making it difficult to form an effective moisture barrier. The compressive strength of 57.8 MPa is 13% higher than the original bamboo material, but lower than the 22% of Example 1. Furthermore, the tung oil film is formed through physical adsorption, and after 50 water washes, the antibacterial rate drops sharply to 71.3%, and its durability is far inferior to the chemical cross-linked network formed by microwave curing in Example 1. The experimental data from Comparative Example 2 show that traditional tung oil has significant deficiencies in antifungal and antibacterial efficiency, hydrophobic properties, and coating durability. Its single silver ion antibacterial and physical coating processes cannot achieve the multi-mechanism synergistic antibacterial effect combined with silane nanocomposite modification of the present invention. This further verifies the breakthrough progress achieved by the present invention through component innovation and process optimization.

[0081] Example 1 describes a bamboo and wood curtain material prepared by using a combination of multi-component antibacterial ingredients, hydrophobic modification with silane, and microwave curing. The material achieved a mildew resistance level of 0, an antibacterial rate of 99.7% against Escherichia coli, a surface contact angle of 93.2°, a compressive strength of 62.3 MPa, and maintained an antibacterial rate of 96.2% after 50 washes. This demonstrates multi-dimensional antibacterial properties, high-efficiency hydrophobicity, and excellent durability.

[0082] Comparative Example 1 uses the traditional lime water-Chinese herbal medicine steaming method. Although it treats bamboo and wood through processes such as sludge adsorption and lime water fumigation, the anti-mildew level is only level 3, the antibacterial rate is 72.3%, the surface contact angle is 65.8°, the moisture content is 12.3%, the compressive strength is only increased by 7.6%, and the coating bonding strength is low. After 50 water washes, the antibacterial rate drops sharply to 58.7%. It has obvious deficiencies in antibacterial efficiency, hydrophobicity and durability.

[0083] Comparative Example 2 was treated with tung oil-silver ion composite, achieving a mildew resistance level of 2, an antibacterial rate of 91.2%, a surface contact angle of 78.5°, a moisture content of 10.5%, and a 13% increase in compressive strength. However, due to the limitations of the single silver ion antibacterial mechanism and physical coating process, it could not achieve multi-component synergistic antibacterial effect, and the hydrophobicity did not reach the critical value. After 50 water washes, the antibacterial rate dropped to 71.3%, and the overall performance was still weaker than that of Example 1.

[0084] As can be seen from the comparison between Example 1 and Comparative Examples 1 and 2, Example 1 achieves significant breakthroughs in antibacterial rate, antifungal level, compressive strength and coating durability through a multi-mechanism synergistic antibacterial network of natural ingredients and nanomaterials, combined with process innovations such as hydrophobic modification of silane coupling agents, microwave drying crosslinking curing and plasma activation treatment. It effectively solves the problems of single antibacterial properties, insufficient hydrophobicity and poor durability of traditional processes, and constructs a more environmentally adaptable protective system.

[0085] Those skilled in the art will recognize that the modules and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0086] In addition, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module.

[0087] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

[0088] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included in the protection of the present invention.

Claims

1. A mildew-proof and antibacterial bamboo and wood curtain material, characterized in that, Includes the following components: Anti-mildew and antibacterial coating: 50-60 parts of Artemisia argyi, 30-40 parts of Phellodendron chinense, 20-30 parts of tea polyphenols, 5-10 parts of nano zinc oxide, 5-10 parts of chitosan with a degree of deacetylation ≥90%, 2-5 parts of silane coupling agent (KH-550), and 0.5-1 part of citric acid; Matrix material: bamboo and wood.

2. The anti-mildew and antibacterial bamboo and wood curtain material as described in claim 1, characterized in that, The flavonoids in the mugwort are mainly rich in quercetin and kaempferol, while the volatile oils are mainly composed of eucalyptol and thujone.

3. The anti-mildew and antibacterial bamboo and wood curtain material as described in claim 1, characterized in that, The main chemical substance responsible for the effects of Phellodendron bark is berberine.

4. The anti-mildew and antibacterial bamboo and wood curtain material as described in claim 1, characterized in that, The core components of the tea polyphenols are catechin compounds.

5. The anti-mildew and antibacterial bamboo and wood curtain material as described in claim 1, characterized in that, The antibacterial and antifungal properties achieve an antibacterial rate of 99.7% and an antifungal grade of 0.

6. The method for preparing a mildew-proof and antibacterial bamboo and wood curtain material as described in any one of claims 1-5, characterized in that, Includes the following steps: S1: Select 0.6g / cm 3 Bamboo or hardwood, cut into strips 0.5-1mm thick and 10-20mm wide; S2: Place the material prepared in S1 in a sealed carbonization furnace and carbonize it at 180-220℃ for 2-3 hours, adding water vapor during the carbonization process; S3: Weigh 50-60 parts of dried mugwort, 30-40 parts of phellodendron bark, and 20-30 parts of tea polyphenols, mix them evenly, then add ethanol solution and extract by ultrasonication for 2 hours, then filter under reduced pressure to remove ethanol; S4: Add 5-10 parts of nano zinc oxide with a particle size of 50-80nm and 5-10 parts of chitosan with a degree of deacetylation ≥90% to the concentrated solution in S3. Adjust the pH to 5.5-6.0 with 0.1M acetic acid solution, and then stir until a stable nano-natural component composite gel is formed. S5: Place the carbonized material in a plasma machine and process it in an argon atmosphere for 3-5 minutes; S6: Immerse the treated material from S5 into the antibacterial composite sol prepared in S4, then place the system under ultrasonic immersion for 15-20 minutes, and then place the product in a microwave drying oven to cure for 10-15 minutes. S7: Prepare 2-5 parts of silane coupling agent, add 0.5-1 parts of citric acid as catalyst, immerse the cured material in S6 into the solution for 1-2 minutes, then place the material in an oven to dry for 30 minutes, and finally irradiate the material with an ultraviolet lamp for 5-8 minutes.

7. The method for preparing a mildew-proof and antibacterial bamboo and wood curtain material as described in claim 6, characterized in that, The sealed environment in S2 is a nitrogen environment, with a humidity range of 30-50%.

8. The method for preparing a mildew-proof and antibacterial bamboo and wood curtain material as described in claim 6, characterized in that, The plasma machine in S5 has a power of 100-150W and a vacuum level of 10-20Pa.

9. The method for preparing a mildew-proof and antibacterial bamboo and wood curtain material as described in claim 6, characterized in that, The sol system in S6 is impregnated with 40kHz ultrasound at 30-40℃.

10. The method for preparing a mildew-proof and antibacterial bamboo and wood curtain material as described in claim 6, characterized in that, The oven temperature in S7 is set to 60℃, and the ultraviolet light wavelength is set to 365nm.

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