Anti-mildew glass wool product and manufacturing method thereof

Abstract

The invention discloses an anti-mildew glass wool product and a manufacturing method thereof, and the anti-mildew glass wool product comprises the following components in parts by weight: 80-100 parts of prefabricated glass wool fiber, 15-20 parts of a formaldehyde-free glass wool binder, 0.1-0.5 part of a coupling agent, 6-10 parts of water, 0.5-3 parts of silicone oil, 0.5-0.8 part of a surfactant, 0.5-0.8 part of a waterproof agent, and 70-110 parts of an anti-mildew coating. According to the design of the anti-mildew coating, the nano-zinc oxide and the organosilicon quaternary ammonium salt are contained, the nano-zinc oxide has unique photocatalytic performance and can generate reactive oxygen species with strong oxidizing property, such as hydroxyl free radicals and the like under the illumination condition, and the free radicals can destroy cell walls, cell membranes and intracellular biomolecules of mould, so that the anti-mildew coating has a good anti-mildew effect. The glass wool product has the advantages that the glass wool product has good anti-compression performance and tensile strength, is not easy to deform and damage and can adapt to various complex building or industrial application scenes, growth and reproduction of mould are inhibited, the service life of the glass wool product in humid, warm and other environments where mould is easy to breed is greatly prolonged, and the fibers are interwoven, so that a firm framework is provided for the glass wool product, and the glass wool product has good anti-compression performance and tensile strength and is not easy to deform and damage.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete preparation, and particularly relates to a mildew-resistant glass wool product and a manufacturing method thereof. Background Art

[0002] Glass wool belongs to a category of glass fibers and is a kind of artificial inorganic fiber. Glass wool is made by fibrillating molten glass to form a cotton-like material. Its chemical composition belongs to the glass category and is an inorganic fiber. It has the advantages of good molding, small bulk density, low thermal conductivity, heat preservation and insulation, good sound absorption performance, corrosion resistance, and stable chemical properties.

[0003] In the prior art, traditional glass wool products are extremely vulnerable to mildew. In a humid, warm or poorly ventilated environment, mildew spores are extremely likely to land on the surface of glass wool and multiply rapidly. Due to the lack of an effective anti-mildew mechanism, mildew will not only erode the glass wool fibers and damage their internal structure, resulting in a significant decline in the heat preservation and heat insulation performance of the material, but also the metabolites produced during the mildew growth process will further corrode the surrounding metal components or building materials, triggering a series of chain reactions, shortening the service life of the entire building structure or industrial facility, and breeding mildew. At the same time, many traditional glass wool products use formaldehyde-containing binders to fix the fibers. During long-term use, formaldehyde will be continuously and slowly released, causing serious pollution to the indoor air quality and endangering human health. Summary of the Invention

[0004] The purpose of the present invention is to provide a mildew-resistant glass wool product and a manufacturing method thereof to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A mildew-resistant glass wool product, by weight, includes 80 - 100 parts of prefabricated glass wool fibers, 15 - 20 parts of formaldehyde-free glass wool binder, 0.1 - 0.5 parts of coupling agent, 6 - 10 parts of water, 0.5 - 3 parts of silicone oil, 0.5 - 0.8 parts of surfactant, 0.5 - 0.8 parts of waterproof agent, and 70 - 110 parts of anti-mildew coating; The prefabricated glass wool fibers, by weight, include 65 - 72 parts of glass, 6 - 12 parts of borax, 1 - 2 parts of soda ash, 1 - 3 parts of calcite, 0.3 - 0.8 parts of magnesium tourmaline, 1 - 4 parts of titanium dioxide, and 4 - 6 parts of ulexite; The anti-mildew coating, by weight, includes 5 - 10 parts of nano-zinc oxide, 3 - 8 parts of organosilicon quaternary ammonium salt, 20 - 30 parts of aqueous polyurethane emulsion, 1 - 3 parts of dispersant, 0.5 - 1.5 parts of defoamer, and 40 - 60 parts of deionized water; The preparation method of the prefabricated glass wool fiber comprises the following steps: by weight, 65-72 parts of glass, 6-12 parts of borax, 1-2 parts of soda ash, 1-3 parts of calcite, 0.3-0.8 parts of magnesium tourmaline, 1-4 parts of titanium dioxide and 4-6 parts of ulexite are put into a pulverizer to be pulverized to obtain a mixed powder, the mixed powder is put into a muffle furnace to be melted to obtain a glass liquid, the glass liquid is put into a glass wool centrifuge to be centrifuged to obtain glass wool fibers, and then the glass wool fibers are put into hot water to be boiled, filtered while it is hot, and dried to obtain the prefabricated glass wool fiber.

[0006] Preferably, by weight, the coupling agent is 0.3 part, water is 8 parts, silicone oil is 2 parts, surfactant is 0.6 part and waterproof agent is 0.6 part.

[0007] Preferably, by weight, the glass is 70 parts, borax is 8 parts, soda ash is 1.5 parts, calcite is 2 parts, magnesium tourmaline is 0.6 part, titanium dioxide is 3 parts and ulexite is 5 parts.

[0008] Preferably, by weight, the nano zinc oxide is 5 parts, the organosilicon quaternary ammonium salt is 3 parts, the aqueous polyurethane emulsion is 20 parts, the dispersant is 1 part, the defoaming agent is 0.5 part and deionized water is 40 parts.

[0009] Preferably, the prefabricated glass wool fiber selects a glass wool matrix with a thickness of 50 mm and a density of 32 kg / m³.

[0010] Preferably, the pulverizing time of the pulverizer is 40-60 min, the temperature of the muffle furnace is 1150-1200 °C, and the melting time is 50-80 min.

[0011] Preferably, when the glass wool centrifuge is centrifuging, the rotation speed of the glass wool centrifuge is 3000-3200 r / min, the pressure is 0.04-0.06 MPa, the centrifuging time is 30-40 min, and after obtaining the glass wool fibers, the boiling time is 15-30 min.

[0012] Preferably, the coupling agent is an organosilane, and the surfactant is trimethoxy silane.

[0013] Preferably, the waterproof agent is hexyl tributylphosphonium tetrafluoroborate.

[0014] The present invention also provides a method for manufacturing a mildew-resistant glass wool product. In the preparation step of the mildew-resistant coating, it specifically comprises the following steps: S1. Add nano zinc oxide into deionized water, add a dispersant under high-speed stirring at 1200 revolutions per minute, and continue stirring for 45 minutes to obtain a nano zinc oxide dispersion liquid; S2. Slowly add the organosilicon quaternary ammonium salt into the aqueous polyurethane emulsion, stir while adding until completely dissolved to obtain a mixed emulsion; S3. Slowly add the nano-zinc oxide dispersion into the mixed emulsion, and at the same time add an antifoaming agent. Stir at a low speed of 400 revolutions per minute for 30 minutes to obtain the anti-mildew coating. S4. Select a glass wool substrate with a thickness of 50 mm and a density of 32 kg / m³. Use ultrasonic cleaning for 15 minutes to remove surface impurities, and then dry it at 60 °C. S5. Uniformly coat the prepared anti-mildew coating on the surface of the glass wool substrate by impregnation, and control the coating amount at 80 grams per square meter. S6. Cure the coated glass wool product at 100 °C for 1 hour to obtain the anti-mildew glass wool product.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1). The anti-mildew coating is carefully designed and contains nano-zinc oxide and organosilicon quaternary ammonium salt. Nano-zinc oxide has unique photocatalytic properties. Under light conditions, it can generate reactive oxygen species with strong oxidizing properties, such as hydroxyl radicals, etc. These free radicals can damage the cell wall, cell membrane and intracellular biomolecules of mildew, fundamentally inhibiting the growth and reproduction of mildew. The organosilicon quaternary ammonium salt carries a positive charge and can attract the negatively charged groups on the surface of mildew, and then penetrate the mildew cell membrane, interfering with the normal physiological metabolism process inside the cell, resulting in the death of mildew. The two work together to build a strong anti-mildew defense line for the glass wool product, enabling it to effectively resist the invasion of various common mildews, such as Aspergillus niger, Penicillium, Mucor, etc., and greatly extending the service life of the glass wool product in humid, warm and other mildew-prone environments. (2). The prefabricated glass wool fibers, as the basic supporting part of the product, are made of glass, borax, soda ash, calcite, magnesium tourmaline, titanium dioxide and ulexite in specific proportions through a fine process. Starting from the mixing of raw materials, the 55-minute pulverization by a pulverizer ensures the uniform mixing of each component into powder, the 1200 °C, 60-minute melting in a muffle furnace makes the raw materials fully fuse into a uniform glass liquid, and then to the glass wool centrifuge with a rotation speed of 100 r / min, a pressure of 0.06 MPa and a 40-minute centrifugation operation to obtain glass wool fibers with a compact structure. Then, use ultrasonic cleaning for 15 minutes to remove the impurities on the surface of the glass wool fibers, and then dry them at 60 °C. These fibers are intertwined with each other, providing a solid framework for the product, making it have good compressive and tensile strengths, not easily deformed or damaged during installation and use, and can adapt to a variety of complex building or industrial application scenarios. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] The present invention provides a mildew-resistant glass wool product, which, by weight, includes 80-100 parts of prefabricated glass wool fibers, 15-20 parts of formaldehyde-free glass wool binder, 0.1-0.5 part of coupling agent, 6-10 parts of water, 0.5-3 parts of silicone oil, 0.5-0.8 part of surfactant, 0.5-0.8 part of waterproof agent, and 70-110 parts of mildew-resistant coating; The prefabricated glass wool fibers, by weight, include 65-72 parts of glass, 6-12 parts of borax, 1-2 parts of soda ash, 1-3 parts of calcite, 0.3-0.8 part of magnesium tourmaline, 1-4 parts of titanium dioxide, and 4-6 parts of ulexite; The mildew-resistant coating, by weight, includes 5-10 parts of nano-zinc oxide, 3-8 parts of organosilicon quaternary ammonium salt, 20-30 parts of aqueous polyurethane emulsion, 1-3 parts of dispersant, 0.5-1.5 parts of defoamer, and 40-60 parts of deionized water; The preparation method of the prefabricated glass wool fibers includes the following steps: By weight, put 65-72 parts of glass, 6-12 parts of borax, 1-2 parts of soda ash, 1-3 parts of calcite, 0.3-0.8 part of magnesium tourmaline, 1-4 parts of titanium dioxide, and 4-6 parts of ulexite into a pulverizer to obtain a mixed powder, put the mixed powder into a muffle furnace to melt to obtain glass liquid, put the glass liquid into a glass wool centrifuge, centrifuge to obtain glass wool fibers, then put the glass wool fibers into hot water and boil, filter while it is hot, and dry to obtain prefabricated glass wool fibers.

[0018] By weight, the coupling agent is 0.3 part; Preferably 0.3 part, as a key additive to enhance the interfacial bonding force between different materials, it promotes the formation of a stable chemical bond between glass fibers and components such as binders, and improves the comprehensive performance of the product. Organosilane is selected as the coupling agent, and its unique molecular structure can chemically react with the surface of inorganic glass fibers at one end and be compatible with organic binders at the other end to achieve a perfect bridge connection; Water is 8 parts; When accurately controlled at 8 parts, it can not only meet the fluidity requirements during the mixing of various raw materials, facilitate uniform dispersion, but also will not cause difficulties in subsequent drying or affect the product performance due to excessive moisture; Silicone oil is 2 parts; It is advisable to use 2 parts. The addition of silicone oil endows the glass wool products with excellent hydrophobicity, making it difficult for moisture to stay and penetrate on the surface, reducing the humid environment required for mold growth from the source, and at the same time enhancing the flexibility and feel of the products; 0.6 part of surfactant. Trimethoxysilane is selected as the surfactant, which can effectively reduce the surface tension of the system, promote the rapid and uniform dispersion of each raw material during the mixing process, avoid agglomeration, ensure the consistency of product performance, and ensure that every fiber can be fully protected and modified; 0.6 part of waterproof agent. Hexyltributylphosphonium tetrafluoroborate is used as the waterproof agent, which can form a dense waterproof molecular film on the surface of glass wool fibers, further enhancing the waterproof and moisture-proof ability of the products, and working synergistically with silicone oil to resist external moisture invasion in all directions.

[0019] By weight, the glass is 70 parts, borax is 8 parts, soda ash is 1.5 parts, calcite is 2 parts, magnesium tourmaline is 0.6 part, titanium dioxide is 3 parts, and ulexite is 5 parts.

[0020] By weight, the nano-zinc oxide is 5 parts, organosilicon quaternary ammonium salt is 3 parts, waterborne polyurethane emulsion is 20 parts, dispersant is 1 part, defoamer is 0.5 part, and deionized water is 40 parts.

[0021] Due to its nano-scale size effect, nano-zinc oxide has super broad-spectrum antibacterial properties, which can accurately destroy the cell membrane structure of molds and inhibit the growth and reproduction of molds from the source; the organosilicon quaternary ammonium salt has a positively charged quaternary ammonium group, which can strongly interact with the negatively charged surface of mold cells, interfere with the normal physiological activities of mold cells, and hinder their growth; as an excellent film-forming substance, the waterborne polyurethane emulsion not only firmly locks the nano-zinc oxide and organosilicon quaternary ammonium salt on the surface of glass wool fibers to form a continuous and dense anti-mold protection barrier, but also endows the coating with good flexibility and water resistance, ensuring that the coating remains firmly attached and is not prone to cracking and peeling under complex environmental conditions. The addition of the dispersant ensures the uniform dispersion of nano-zinc oxide and organosilicon quaternary ammonium salt in the system, avoiding uneven local anti-mold effects caused by agglomeration; the defoamer effectively eliminates the bubbles generated during the preparation of the coating, preventing defects such as pinholes and bubbles in the coating and ensuring the perfect quality of the anti-mold coating.

[0022] In practical applications, we found that when the components are in the following preferred weight ratio, the performance of the product reaches the best: 70 parts of glass, 8 parts of borax, 1.5 parts of soda ash, 2 parts of calcite, 0.6 parts of magnesium tourmaline, 3 parts of titanium dioxide, 5 parts of ulexite; 5 parts of nano zinc oxide, 3 parts of organosilicon quaternary ammonium salt, 20 parts of waterborne polyurethane emulsion, 1 part of dispersant, 0.5 part of defoamer, 40 parts of deionized water; 0.3 part of coupling agent, 8 parts of water, 2 parts of silicone oil, 0.6 part of surfactant, 0.6 part of waterproof agent. At this time, the prefabricated glass wool fiber selects a glass wool matrix with a thickness of 50 mm and a density of 32 kg / m³. This specification provides suitable basic conditions for subsequent processing while taking into account good heat insulation and sound insulation effects.

[0023] The prefabricated glass wool fiber selects a glass wool matrix with a thickness of 50 mm and a density of 32 kg / m³.

[0024] The crushing time of the crusher is 40 - 60 min, the temperature of the muffle furnace is 1150 - 1200 °C, and the melting time is 50 - 80 min.

[0025] When the glass wool centrifuge is centrifuging, the rotation speed of the glass wool centrifuge is 3000 - 3200 r / min, the pressure is 0.04 - 0.06 MPa, the centrifugation time is 30 - 40 min. After obtaining the glass wool fiber, the boiling time is 15 - 30 min.

[0026] The coupling agent is organosilane, and the surfactant is trimethoxy silane.

[0027] The waterproof agent is hexyltributylphosphonium tetrafluoroborate.

[0028] The present invention also provides a method for manufacturing a mildew-resistant glass wool product. In the preparation step of the mildew-resistant coating, it specifically includes the following steps: S1. Add nano zinc oxide to deionized water, add the dispersant under high-speed stirring at 1200 revolutions per minute, and continue stirring for 45 minutes to obtain a nano zinc oxide dispersion; S2. Slowly add the organosilicon quaternary ammonium salt to the waterborne polyurethane emulsion, stir while adding until completely dissolved to obtain a mixed emulsion; S3. Slowly add the nano zinc oxide dispersion to the mixed emulsion, and at the same time add the defoamer, stir at a low speed of 400 revolutions per minute for 30 minutes to obtain a mildew-resistant coating; S4. Select a glass wool matrix with a thickness of 50 mm and a density of 32 kg / m³, use ultrasonic cleaning for 15 minutes to remove surface impurities, and then dry at 60 °C; S5. Uniformly coat the prepared mildew-resistant coating on the surface of the glass wool matrix by impregnation, and control the coating amount at 80 grams per square meter. S6. The coated glass wool products are cured at 100 °C for 1 hour to obtain mildew-resistant glass wool products.

[0029] Comparative Example 1: 65 parts of glass, 7 parts of borax, 1 part of soda ash, 3 parts of calcite, 0.7 part of magnesite tourmaline, 3 parts of titanium dioxide and 5 parts of ulexite; No mildew-proof coating; (1) Mildew resistance: The mildew-resistant glass wool products of the present invention achieve a mildew-proof effect of grade 0, and there is no sign of mildew growth. In contrast, the common glass wool samples are rampant with mildew, and the coverage area is as high as 65%. This fully demonstrates the excellent efficacy of the mildew-proof coating and special formula of the present invention. It shows that the present invention has unique advantages in inhibiting mildew growth and can better meet the use requirements of glass wool products in humid and mildew-prone environments; (2) Physical properties: In terms of the thermal conductivity, the sample of the present invention is 0.032 W / (m・K), which is better than that of the common glass wool at 0.038 W / (m・K), indicating that the heat insulation performance of the products of the present invention is better. This is due to the reasonable raw material formula and process optimization, making the internal structure of the glass wool more conducive to heat insulation.

[0030] In terms of the tensile strength, the present invention reaches 0.85 MPa, which is higher than that of the common glass wool at 0.60 MPa, indicating that the mechanical properties of the products are strengthened and are less likely to be damaged during installation and use, ensuring the stability and reliability of the products.

[0031] The hygroscopicity test shows that 5.2% of the present invention is lower than 8.5% of the common glass wool, meaning that the products of the present invention can absorb less moisture in a humid environment, reducing the risks of performance decline, mildew and deterioration caused by moisture absorption, and further improving the durability of the products; (3) Environmental protection performance: In the formaldehyde release amount test, no formaldehyde is detected in the present invention, which is much better than that of the common glass wool at 0.12 mg / m³; The TVOC release amount is only 0.05 mg / m³, which is at a low level, while that of the common glass wool is 0.20 mg / m³, highlighting the advantages of using environmentally friendly materials such as formaldehyde-free glass wool binders in the present invention. It has little impact on the indoor air quality during use and conforms to the current development trend of green and environmentally friendly building materials.

[0032] The comparison test results of the mildew resistance, physical properties and environmental protection performance between the mildew-resistant glass wool products of the present invention and traditional glass wool products are shown in Table 1 below: Table 1 is the comparison test result table of the mildew resistance, physical properties and environmental protection performance between the mildew-resistant glass wool products of the present invention and traditional glass wool products During specific use, Preparation of prefabricated glass wool fibers: Raw material pretreatment: First, prepare raw materials such as glass, borax, soda ash, calcite, tourmaline, titanium dioxide, and ulexite strictly according to the established weight parts. For raw materials in block or larger particle form, conduct pre-crushing, screening, etc. to ensure that their particle sizes meet the requirements of subsequent processing and ensure that all raw materials can be fully and evenly mixed.

[0033] Crushing and mixing: Put the treated raw materials into a crusher, start the crushing program, and continue for 50 minutes until the raw materials are crushed into a uniform mixed powder. This step is crucial. Sufficient crushing and mixing provide a solid foundation for subsequent melting and ensure the uniform distribution of each component in the glass liquid. Melting: Carefully transfer the obtained mixed powder into a muffle furnace, precisely control the temperature of the muffle furnace between 1200 °C, and maintain the melting process for 80 minutes. During this period, high temperature promotes the full melting and fusion of the raw materials to form a uniform and pure glass liquid. The operator needs to constantly monitor the furnace temperature change to ensure the smooth and stable progress of the melting process.

[0034] Centrifugal fiber formation: Immediately after melting, quickly put the glass liquid into a glass wool centrifuge, precisely set the centrifuge speed to 3100 r / min, control the pressure at 0.06 MPa, and continue centrifugation for 35 minutes. Under the dual action of high-speed rotation and appropriate pressure, the glass liquid is precisely transformed into glass wool fibers.

[0035] Post-treatment: Immediately put the centrifuged glass wool fibers into hot water and boil for 25 minutes. This is aimed at effectively removing impurities attached to the fiber surface. Then quickly filter while it is hot with a filter screen, place the filtered glass wool fibers in a dry environment for sufficient drying, and finally obtain prefabricated glass wool fibers with excellent structure. During this process, a glass wool matrix with a thickness of 50 mm and a density of 32 kg / m³ is specifically selected to provide a standardized basis for the subsequent shaping of products.

[0036] Preparation of anti-mildew coating: Preparation of nano-zinc oxide dispersion liquid. Accurately weigh nano-zinc oxide, slowly add it to deionized water, then start a high-speed stirring device with a set speed of 1200 revolutions per minute. Under this high-speed stirring state, precisely add a dispersant, and then continue stirring for 45 minutes to ensure that the nano-zinc oxide particles are evenly dispersed in water, obtaining a stable nano-zinc oxide dispersion liquid. This process plays a key fundamental role in the performance of the subsequent anti-mildew coating. Evenly dispersed nano-zinc oxide can fully exert its anti-mildew efficacy.

[0037] Preparation of mixed emulsion. Weigh the silicone quaternary ammonium salt carefully and add it to the aqueous polyurethane emulsion at a slow and uniform rate, while continuously stirring during the addition until the silicone quaternary ammonium salt is completely dissolved to form a uniform mixed emulsion. This step ensures the full integration of the silicone quaternary ammonium salt and the aqueous polyurethane emulsion, preparing for the subsequent construction of an efficient anti-mildew system.

[0038] Synthesis of anti-mildew coating. Slowly add the previously prepared nano-zinc oxide dispersion to the mixed emulsion. At the same time, add the defoamer synchronously, then switch to the low-speed stirring mode with the rotation speed adjusted to 400 revolutions per minute and stir continuously for 30 minutes. Through this series of precise operations, the anti-mildew coating is successfully obtained. This coating combines multiple anti-mildew components and has a strong anti-mildew and antibacterial ability.

[0039] Molding of glass wool products: Substrate pretreatment: Select a glass wool substrate with a thickness of 50 mm and a density of 32 kg / m³, and use ultrasonic cleaning technology to deeply clean its surface. The cleaning time is set to 15 minutes to effectively remove surface impurities, and then put it into an oven at 60 °C to dry, ensuring that the substrate surface is clean and dry, creating good conditions for the subsequent coating operation.

[0040] Coating application: Adopt the dipping method to evenly coat the prepared anti-mildew coating on the surface of the pretreated glass wool substrate. By precisely controlling factors such as the dipping time and coating concentration, the coating amount is accurately controlled at 80 grams per square meter to ensure uniform coating coverage and reasonable dosage.

[0041] Curing and molding: The coated glass wool products are quickly placed in a curing device at 100 °C for a curing treatment for 1 hour. During this process, the components in the anti-mildew coating undergo cross-linking reactions and firmly adhere to the glass wool substrate, finally forming glass wool products with excellent anti-mildew performance.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mildew-resistant glass wool product, characterized in that: The invention comprises, by weight, 80-100 parts of prefabricated glass wool fibers, 15-20 parts of formaldehyde-free glass wool binder, 0.1-0.5 parts of coupling agent, 0.5-3 parts of silicone oil, 0.5-0.8 parts of surfactant and 0.5-0.8 parts of waterproofing agent, 70-110 parts of anti-mildew coating, and the balance is water; The prefabricated glass wool fiber is composed of the following parts by weight: 65-72 parts of glass, 6-12 parts of borax, 1-2 parts of soda ash, 1-3 parts of calcite, 0.3-0.8 parts of tourmaline, 1-4 parts of titanium dioxide and 4-6 parts of ulexite; The anti-mildew coating is measured by weight. Including: 5-10 parts of nano zinc oxide, 3-8 parts of organosilicon quaternary ammonium salt, 20-30 parts of waterborne polyurethane emulsion, 1-3 parts of dispersant, 0.5-1.5 parts of defoamer, and 40-60 parts of deionized water; The preparation method of the prefabricated glass wool fiber comprises the following steps: by weight, 65-72 parts of glass, 6-12 parts of borax, 1-2 parts of soda ash, 1-3 parts of calcite, 0.3-0.8 parts of magnesium tourmaline, 1-4 parts of titanium dioxide and 4-6 parts of ulexite are put into a pulverizer and crushed to obtain a mixed powder; the mixed powder is put into a muffle furnace to melt to obtain glass liquid; the glass liquid is put into a glass wool centrifuge, centrifuged to obtain glass wool fibers; the glass wool fibers are then put into hot water to boil, filtered while hot, and dried to obtain prefabricated glass wool fibers.

2. The antifungal glass wool product according to claim 1, characterized in that: By weight, the coupling agent comprises 0.3 parts, water comprises 8 parts, silicone oil comprises 2 parts, surfactant comprises 0.6 parts and waterproofing agent comprises 0.6 parts.

3. The antifungal glass wool product according to claim 1, characterized in that: In parts by weight, the glass comprises 70 parts, borax 8 parts, soda ash 1.5 parts, calcite 2 parts, tourmaline 0.6 parts, titanium dioxide 3 parts and ulexite 5 parts.

4. The antifungal glass wool product according to claim 1, characterized in that: By weight, the nano zinc oxide comprises 5 parts, silicone quaternary ammonium salt 3 parts, waterborne polyurethane emulsion 20 parts, dispersant 1 part, defoamer 0.5 parts, and deionized water 40 parts.

5. The antifungal glass wool product according to claim 1, characterized in that: The prefabricated glass wool fibers are selected from a glass wool matrix with a thickness of 50 mm and a density of 32 kg / m³.

6. The anti-mildew glass wool product according to claim 5, characterized in that: The crushing time of the crusher is 40-60 minutes, the temperature of the muffle furnace is 1150-1200° C., and the melting time is 50-80 minutes.

7. The antifungal glass wool product according to claim 1, characterized in that: When the glass wool centrifuge is centrifuged, the rotation speed of the glass wool centrifuge is 3000-3200 r / min, the pressure is 0.04-0.06 MPa, the centrifugation time is 30-40 min, and after the glass wool fibers are obtained, the boiling time is 15-30 min.

8. The antifungal glass wool product according to claim 1, characterized in that: The coupling agent is organic silane, and the surfactant is trimethyloxysilane.

9. The antifungal glass wool product according to claim 1, characterized in that: The waterproofing agent is hexyltributylphosphine boron tetrafluoride.

10. A method for producing an antifungal glass wool product according to any one of claims 1 to 9, characterized in that: The preparation steps of the anti-mildew coating specifically include the following steps: S1. Add nano zinc oxide to deionized water, add dispersant under high-speed stirring at 1200 rpm, and continue stirring for 45 minutes to obtain a nano zinc oxide dispersion; S2, slowly adding the organosilicon quaternary ammonium salt to the aqueous polyurethane emulsion, stirring while adding, until it is completely dissolved, to obtain a mixed emulsion; S3, slowly adding the nano zinc oxide dispersion into the mixed emulsion, adding a defoamer at the same time, stirring at a low speed of 400 rpm for 30 minutes to obtain an anti-mildew coating; S4. Select a glass wool substrate with a thickness of 50 mm and a density of 32 kg / m³, use ultrasonic cleaning for 15 minutes to remove surface impurities, and then dry it at 60°C; S5, coating the prepared anti-mildew coating evenly on the surface of the glass wool substrate by dipping, and controlling the coating amount to 80 grams per square meter; S6. The coated glass wool product is cured at 100° C. for 1 hour to obtain an anti-mildew glass wool product.

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