CN111021078B - Sound-insulation fireproof easy-to-clean membrane material for building wall and preparation method thereof - Google Patents

Sound-insulation fireproof easy-to-clean membrane material for building wall and preparation method thereof Download PDF

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CN111021078B
CN111021078B CN201911280724.5A CN201911280724A CN111021078B CN 111021078 B CN111021078 B CN 111021078B CN 201911280724 A CN201911280724 A CN 201911280724A CN 111021078 B CN111021078 B CN 111021078B
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CN111021078A (en
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彭雄义
陈卓
张延�
董雄伟
刘仰硕
吕少仿
于泽浩
梁永红
蔡映杰
王强
杨锋
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Dragon Totem Technology Hefei Co ltd
XUANCHENG FUMEIDA NEW MATERIALS CO Ltd
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Wuhan Textile University
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
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    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/011Manufacture of glass fibres or filaments starting from a liquid phase reaction process, e.g. through a gel phase
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0022Glass fibres
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    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0059Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
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    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
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Abstract

The invention relates to a sound-insulation fireproof easy-cleaning film material for a building wall and a preparation method thereof. Firstly, preparing silica sol and alumina sol; respectively spinning silica sol and alumina sol, and washing, oiling and drying to obtain silk threads; then drying the silk thread to obtain gel fiber, sintering the gel fiber at high temperature to respectively obtain SiO2Glass fiber and Al2O3Glass fibers; mixing SiO2Glass fiber and Al2O3Adding glass fiber into a glass fiber felt production equipment system to prepare SiO2‑Al2O3Compounding a glass fiber mat; secondly, SiO2‑Al2O3Coating the composite glass fiber felt with a main substrate slurry containing polyvinyl chloride and the like by adopting a dipping process; and finally, carrying out easy-cleaning treatment on the film material to obtain the sound-insulation fireproof easy-cleaning film material for the building wall. The film material prepared by the invention has good flame retardant property and easy cleaning property; the raw materials have wide sources, the preparation process is simple, and the market prospect is good.

Description

Sound-insulation fireproof easy-to-clean membrane material for building wall and preparation method thereof
Technical Field
The invention belongs to the technical field of preparation of membrane materials, and particularly relates to a sound-insulation fireproof easy-cleaning membrane material for a building wall and a preparation method thereof.
Background
In the middle of the 60's of the 20 th century, membrane structural engineering was the latest architectural form currently originating in the united states and japan, and was widely used in the middle and late 90's domestically. The membrane material structure building has the characteristics of simple, heat-preservation, fire-resistance, water-proofing, self-cleaning and beautiful curved surface modeling and the like, and is favored by the masses of architects. In addition, in the home decoration industry, most of the interior wall decoration materials contain formaldehyde, benzene and other toxic volatile gases, so that the indoor air quality is polluted, and the human health is influenced. Therefore, people are beginning to recognize that the pollution of the decoration materials causes harm to the health of people, and other wall surface decorating materials with less pollution are gradually used, such as: wallpaper, wall cloth, membrane materials and the like. Among these materials, wallpaper and wall cloth also have many disadvantages, such as: the coating has the advantages of easy damage, easy dirt, easy oil stain and the like, the coating can just make up for the defects, and the coating has the advantages of difficult damage, easy cleaning, active and beautiful shape, relatively low price, light dead weight, high construction speed and the like. Therefore, the film material is more and more popular with consumers in the decoration industry, and the market share of the film material is gradually increased.
At present, the film material for the building wall is in a starting rapid development stage in China, and a small amount of reports are also reported on the research of the film material for the building wall. Studies that real silk fabric/PE film composite materials are used for indoor wall decoration (silk, 2011, 48 (3): 19-21) are reported by Chen-chao, and the film prepared by the documents has the defects that the price of the main raw material real silk fabric is high, and the flame retardant property is poor; the development of flame-retardant waterproof breathable films for fiber curtain wall heat-insulating materials is reported by Luzhouchai et al (novel building materials, 2014, 2: 64-67, 76), emulsion and organic silicon are selected as base materials in the document, and the prepared film has waterproof and breathable properties, but has the defect that the sound-insulating effect cannot be guaranteed, and the sound-insulating property is the most basic requirement because of a good film material for building walls.
At present, the excellent-performance membrane for the building wall must have the functions of sound insulation, fire prevention, self-cleaning and the like, a high-grade membrane for the building wall needs to be imported, and the invention is designed to break through in the field of high-performance membrane for the building wall aiming at the defects of the market of the membrane for the building wall and the requirements of high-standard and excellent-performance membrane for the building wall.
Disclosure of Invention
The invention aims to provide a sound-insulation fireproof easy-cleaning film material for building walls, which is used for solving the defects in the prior art and has good flame retardant property and easy-cleaning property.
The invention aims to provide a sound-insulation fireproof easy-cleaning film material for building walls, which can be prepared by the following preparation method: taking ethyl orthosilicate, aluminum trichloride and the like as raw materials, and respectively preparing silica sol and aluminum sol; respectively spinning silica sol and alumina sol, and washing, oiling and drying to obtain silk threads; then drying the silk thread to obtain gel fiber, sintering the gel fiber at high temperature to respectively obtain SiO2Glass fiber and Al2O3Glass fibers; mixing SiO2Glass fiber and Al2O3Adding glass fiber into a glass fiber felt production equipment system to prepare SiO2-Al2O3Compounding a glass fiber mat; secondly, SiO2-Al2O3Coating the composite glass fiber felt with slurry of main base materials such as polyvinyl chloride and the like by adopting impregnation process equipment; and finally, carrying out easy-cleaning treatment on the film material to obtain the sound-insulation fireproof easy-cleaning film material for the building wall.
The invention also aims to provide a preparation method of the sound-insulation fireproof easy-to-clean film material for the building wall, which comprises the following steps:
(1)SiO2preparing glass fibers: mixing and stirring tetraethoxysilane and absolute ethyl alcohol to prepare a mixed solution a; dissolving deionized water and 5% diluted hydrochloric acid in absolute ethyl alcohol, and stirring to prepare a mixed solution b; dropwise adding the mixed solution b into the mixed solution a for 1-3 hours; after the dropwise addition is finished, the initial silica sol is prepared and is put into the reactor at the temperature of between 20 and 40 DEG C Aging in an oven for 2-6 hours; continuously measuring the viscosity of the silica sol, namely immersing a glass rod into the silica sol and slowly lifting the glass rod, observing the formation state of the long and thin silk thread, and preparing the silica sol to be spun when the viscosity of the silica sol meets the viscosity of spinning and reaches 40-90 Pa.s; adding the silica sol into a spinning system for spinning, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 60-80 ℃ for 4-6 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 400-600 ℃ for 10-12 hours to prepare SiO2Glass fibers.
Preferably, the volume ratio of the tetraethoxysilane (mL) to the absolute ethyl alcohol (mL) in the mixed solution a is as follows: 1: 10-20; the volume ratio of deionized water (mL), 5% diluted hydrochloric acid (mL) and absolute ethyl alcohol (mL) in the mixed solution b is as follows: 1: 1 to 2: 3 to 5.
(2)Al2O3Preparing glass fibers: mixing aluminum trichloride (AlCl)3) Uniformly mixing with isopropanol, stirring for 1-3 hours, and introducing ammonia gas for reaction for 2-4 hours; after the reaction is finished, filtering to obtain filtrate, namely the mixed solution of aluminum isopropoxide and isopropanol; dissolving an aluminum isopropoxide-isopropanol mixed solution in isopropanol to prepare a mixed solution a, dissolving 5% hydrochloric acid in deionized water to prepare a mixed solution b, dropwise adding the mixed solution b into the mixed solution a, stirring and dropwise adding for 1-3 hours, wherein the reaction temperature is 80-90 ℃, after dropwise adding is completed, preparing aluminum sol, aging the aluminum sol at room temperature for 4-6 hours, continuously measuring the viscosity of the aluminum sol, namely immersing a glass rod into the sol and slowly lifting, observing the formation state of a thin filament yarn, and preparing the aluminum sol to be spun when the sol meets the viscosity of spinning and the viscosity reaches 30-80 Pa.s; adding the alumina sol into a spinning system for spinning, and washing, oiling and drying the spun silk yarn to obtain silk yarn; drying the silk thread at 70-90 ℃ for 6-8 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 400-600 ℃ for 14-16 hours to obtain Al 2O3Glass fibers.
Preferably, the mass-to-volume ratio of the aluminum trichloride (g) to the isopropanol (mL) is: 1: 10-20; the introduction speed of the ammonia gas is as follows: 1-3 mL/min.
Preferably, the volume ratio of the aluminum isopropoxide-isopropanol mixed solution (mL) to the isopropanol (mL) in the mixed solution a is as follows: 1: 1-3; the mass-to-volume ratio of the 5% hydrochloric acid (mL) to the deionized water (mL) in the mixed solution b is as follows: 1: 10-20.
(3) Preparing a glass fiber felt: SiO prepared in the step (1)2Glass fiber and Al prepared in step (2)2O3Adding glass fiber into a glass fiber felt production equipment system to prepare SiO2-Al2O3A composite glass fiber mat.
Preferably, the SiO prepared in the step (1)2Glass fiber and Al prepared in step (2)2O3The dosage proportion of the glass fiber is as follows: 1: 1-2.
(4) Preparation of the host substrate: and stirring and mixing the polyvinyl chloride particles, the PVC pigment and the organic flame retardant at 180-200 ℃ to prepare the main body substrate slurry.
Preferably, the mass ratio of the polyvinyl chloride particles (g), the PVC pigment (g) and the organic flame retardant (g) is as follows: 1: 0.1-0.2; the PVC pigment is one of the following pigments: : yellow PVC pigment, blue PVC pigment, green PVC pigment and red PVC pigment; the organic flame retardant is pentaerythritol phosphate melamine salt (MPP).
(5) Preparing a membrane material: mixing SiO2-Al2O3And coating the main body substrate slurry on the composite glass fiber mat by adopting dipping process equipment, and drying for 6-12 hours to obtain the membrane material for the building wall.
Preferably, the drying temperature is 30 ℃ to 50 ℃.
(6) Easy-to-clean treatment of the membrane material: the surface of the membrane material is coated with a layer of easy-to-clean coating, the membrane material is sprayed in a spraying mode, room temperature curing is carried out for 6-12 hours after spraying is finished, and the using amount of the coating is as follows: 30-40 square meters/kg.
The invention has the following remarkable advantages:
(1) the polyvinyl chloride has the advantages of flame retardance (the flame retardant value is more than 40), good mechanical strength and good electrical insulation, and the polyvinyl chloride is selected as the base material of the sound-insulation fireproof easy-cleaning film material for the building wall, and in addition, the organic flame retardant is added, so that the prepared film material has better fireproof performance.
(2) The flame retardant property test shows that: the sound-proof fireproof easy-cleaning film material for the building wall is shown as V-0 grade, which shows that the sound-proof fireproof easy-cleaning film material for the building wall prepared by the invention has good fireproof performance.
(3) The invention selects SiO2-Al2O3The composite glass fiber felt is used as a framework material of the membrane material, can improve the strength performance of the membrane material, and can prevent the membrane material from cracking after long-term use.
(4) The invention carries out easy-cleaning treatment on the membrane, namely, a layer of easy-cleaning coating is coated on the surface of the membrane, so that the easy-cleaning performance of the membrane is obviously improved.
(5) The sound-insulation fireproof easy-cleaning film material for the building wall, which is prepared by the invention, has the advantages of wide raw material source, simple preparation process and good market prospect.
Drawings
FIG. 1 SiO in example 12Electron microscopy of glass fibers;
FIG. 2 Al in example 12O3Electron microscopy of glass fibers;
FIG. 3 is a schematic view of a system of a glass fiber mat production apparatus in examples 1 to 3 (1-electric melting furnace; 2-bushing; 3-adding impregnating compound; 4-mechanical device; 5-spraying adhesive; 6-metal mesh belt; 7-curing device; 8-winding drum);
FIG. 4 is a schematic view of the impregnation process equipment in the embodiment 1-3 (1. impregnation tank; 2. cooling and solidifying device; 3. traction device; 4. rolling device; 5. support).
Detailed Description
The examples described below illustrate the invention in detail.
Example 1
In this embodiment, a sound-insulation fire-proof easy-cleaning film for building walls is prepared by the following method, including the following steps:
(1)SiO2preparing glass fibers: mixing 10mL of ethyl orthosilicate and 150mL of absolute ethyl alcohol and stirring to prepare a mixed solutiona; dissolving 50mL of deionized water and 75mL of 5% diluted hydrochloric acid in 200mL of absolute ethyl alcohol, and stirring to prepare a mixed solution b; dropwise adding the mixed solution b into the mixed solution a for 2 hours; after the dropwise addition is finished, preparing uniform silica sol; aging in a drying oven at 30 deg.C for 4 hr until the viscosity reaches 45.7 Pa.s to obtain silica sol for spinning; adding the sol into a spinning system for spinning, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 70 ℃ for 5 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 500 ℃ for 11 hours to prepare SiO 2Glass fiber of the SiO2An electron micrograph of the glass fiber is shown in FIG. 1.
(2)Al2O3Preparing glass fibers: 10g of aluminum trichloride (AlCl)3) Uniformly mixing with 150mL of isopropanol, stirring for 2 hours, and introducing ammonia gas for reaction, wherein the introduction speed of the ammonia gas is as follows: 2mL/min, and the reaction time is 3 hours; after the reaction is finished, filtering to obtain filtrate, namely the mixed solution of aluminum isopropoxide and isopropanol; dissolving 150mL of aluminum isopropoxide-isopropanol mixed solution in 300mL of isopropanol to prepare a mixed solution a, dissolving 10mL of 5% hydrochloric acid in 150mL of deionized water to prepare a mixed solution b, dropwise adding the mixed solution b into the mixed solution a, stirring and dropwise adding for 2 hours at the reaction temperature of 85 ℃, and after dropwise adding is completed, preparing aluminum sol; aging the mixture for 5 hours at room temperature, and preparing the aluminum sol to be spun when the viscosity of the mixture reaches 55.6 Pa.s; adding the sol into a spinning system for spinning, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 80 ℃ for 7 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 500 ℃ for 15 hours to prepare Al2O3Glass fiber of Al2O3An electron micrograph of the glass fiber is shown in FIG. 2.
(3)SiO2-Al2O3Preparing a composite glass fiber felt: 1000g of SiO prepared in step (1) 2Glass fiber and 1500g of Al prepared in step (2)2O3The glass fiber is added into a glass fiber mat production equipment system, the schematic diagram of the glass fiber mat production equipment system is shown in figure 3, and SiO is prepared2-Al2O3Composite glass fiber felt.
(4) Preparation of the main body substrate: stirring and mixing 500g of polyvinyl chloride particles, 75g of yellow PVC pigment and 75g of pentaerythritol phosphate melamine salt at 190 ℃ to prepare main base material slurry; the pentaerythritol phosphate melamine salt (MPP) is purchased from the technical center of the fine chemical industry of the Gibco corporation.
(5) Preparing a membrane material: mixing SiO2-Al2O3The composite glass fiber mat is coated with the main body substrate slurry by adopting impregnation process equipment, the schematic diagram of the impregnation process equipment is shown in figure 4, the composite glass fiber mat is dried for 8 hours, and the drying temperature is 40 ℃, so that the membrane material for the building wall is prepared.
(6) Easy-to-clean treatment of the membrane material: and coating a layer of easy-to-clean coating on the surface of the membrane material, spraying the membrane material, and curing at room temperature for 9 hours after spraying to obtain the sound-insulation fireproof easy-to-clean membrane material a for the building wall. The coating is purchased from Dongguan Dawei surface technology Co., Ltd (model: 180309105034), and the dosage of the coating is as follows: 32 square meters/kg.
Example 2
In this embodiment, a sound-insulation fire-proof easy-cleaning film for building walls is prepared by the following method, including the following steps:
(1)SiO2Preparing glass fibers: mixing and stirring 10mL of tetraethoxysilane and 100mL of absolute ethyl alcohol to prepare a mixed solution a; dissolving 50mL of deionized water and 50mL of 5% diluted hydrochloric acid in 150mL of absolute ethyl alcohol, and stirring to prepare a mixed solution b; dropwise adding the mixed solution b into the mixed solution a for 2 hours; after the dropwise addition is finished, preparing uniform silica sol; aging in a drying oven at 30 deg.C for 4 hr until the viscosity reaches 66.7 Pa.s to obtain silica sol for spinning; adding the sol into a spinning system for spinning, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 60 ℃ for 4 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 400 ℃ for 10 hours to prepare SiO2Glass fibers.
(2)Al2O3Preparing glass fibers: 10g of aluminum trichloride (AlCl)3) Mixing with 100mL isopropanol, stirringAnd (2) introducing ammonia gas for reaction, wherein the introduction speed of the ammonia gas is as follows: 1mL/min, and the reaction time is 3 hours; after the reaction is finished, filtering to obtain filtrate, namely the mixed solution of aluminum isopropoxide and isopropanol; dissolving 150mL of aluminum isopropoxide-isopropanol mixed solution in 150mL of isopropanol to prepare a mixed solution a, dissolving 10mL of 5% hydrochloric acid in 100mL of deionized water to prepare a mixed solution b, dropwise adding the mixed solution b into the mixed solution a, stirring and dropwise adding for 2 hours at the reaction temperature of 80 ℃, and after dropwise adding is completed, preparing aluminum sol; aging the mixture for 4 hours at room temperature, and preparing the aluminum sol to be spun when the viscosity of the mixture reaches 49.8 Pa.s; adding the sol into a spinning system for spinning, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 80 ℃ for 7 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 400 ℃ for 14 hours to prepare Al 2O3Glass fibers.
(3) Preparing a glass fiber felt: 1000g of SiO prepared in step (1)2Glass fibers and 1000g of Al prepared in step (2)2O3The glass fiber is added into a glass fiber mat production equipment system, the schematic diagram of the glass fiber mat production equipment system is shown in figure 3, and SiO is prepared2-Al2O3A composite glass fiber mat.
(4) Preparation of the host substrate: 500g of polyvinyl chloride particles, 50g of blue PVC pigment and 50g of pentaerythritol phosphate melamine salt were stirred and mixed at 180 ℃ to prepare a main body base material slurry. The pentaerythritol phosphate melamine salt (MPP) is purchased from the technical center of the fine chemical industry of the Gibco corporation.
(5) Preparing a membrane material: mixing SiO2-Al2O3The composite glass fiber mat is coated with the main body substrate slurry by adopting impregnation process equipment, the schematic diagram of the impregnation process equipment is shown in figure 4, the composite glass fiber mat is dried for 8 hours, and the drying temperature is 30 ℃, so that the membrane material for the building wall is prepared.
(6) Easy-cleaning treatment of the membrane material: and (3) coating a layer of easy-to-clean coating on the surface of the membrane material, spraying the membrane material, and curing at room temperature for 6 hours after spraying to obtain the sound-insulation fireproof easy-to-clean membrane material b for the building wall. The coating is purchased from Dongguan Dawei surface technology Co., Ltd (model: 180309105034), and the dosage of the coating is as follows: 35 square meters per kg.
Example 3
In this embodiment, a sound-insulation fire-proof easy-cleaning film for building walls is prepared by the following method, including the following steps:
(1)SiO2preparing glass fibers: mixing and stirring 10mL of ethyl orthosilicate and 200mL of absolute ethyl alcohol to prepare a mixed solution a; dissolving 50mL of deionized water and 100mL of 5% diluted hydrochloric acid in 250mL of absolute ethyl alcohol, and stirring to prepare a mixed solution b; dropwise adding the mixed solution b into the mixed solution a for 3 hours; after the dropwise addition is finished, preparing uniform silica sol, and putting the uniform silica sol into an oven for aging for 6 hours at the temperature of 30 ℃ until the viscosity reaches 52.8 Pa.s to prepare the silica sol to be spun; adding the sol into a spinning system for spinning, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 70 ℃ for 5 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 600 ℃ for 12 hours to prepare SiO2Glass fibers.
(2)Al2O3Preparing glass fibers: 10g of aluminum trichloride (AlCl)3) Mixing with 200mL of isopropanol uniformly, stirring for 2 hours, and introducing ammonia gas for reaction, wherein the introduction speed of the ammonia gas is as follows: 3mL/min, and the reaction time is 3 hours; after the reaction is finished, filtering to obtain filtrate, namely the mixed solution of aluminum isopropoxide and isopropanol; dissolving 150mL of aluminum isopropoxide-isopropanol mixed solution in 450mL of isopropanol to prepare a mixed solution a, dissolving 10mL of 5% hydrochloric acid in 200mL of deionized water to prepare a mixed solution b, dropwise adding the mixed solution b into the mixed solution a, stirring and dropwise adding for 2 hours at the reaction temperature of 90 ℃, after dropwise adding, preparing aluminum sol, aging the aluminum sol for 6 hours at room temperature, and preparing the aluminum sol to be spun when the viscosity reaches 71.4 Pa.s; adding the sol into a spinning system for spinning, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 90 ℃ for 8 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 600 ℃ for 16 hours to prepare Al 2O3Glass fibers.
(3) Preparing a glass fiber felt: 1000g of SiO prepared in step (1)2Glass fibers and 2000g of Al prepared in step (2)2O3The glass fiber is added into a glass fiber mat production equipment system, the schematic diagram of the glass fiber mat production equipment system is shown in figure 3, and SiO is prepared2-Al2O3A composite glass fiber mat.
(4) Preparation of the host substrate: 500g of polyvinyl chloride particles, 100g of green PVC pigment and 100g of pentaerythritol phosphate melamine salt were stirred and mixed at 190 ℃ to prepare a main body base material slurry. The pentaerythritol phosphate melamine salt (MPP) is purchased from the technical center of the fine chemical industry of the Gibco corporation.
(5) Preparing a membrane material: mixing SiO2-Al2O3The composite glass fiber mat is coated with the main body substrate slurry by adopting impregnation process equipment, the schematic diagram of the impregnation process equipment is shown in figure 4, the composite glass fiber mat is dried for 8 hours, and the drying temperature is 50 ℃, so that the membrane material for the building wall is prepared.
(6) Easy-cleaning treatment of the membrane material: and coating a layer of easy-to-clean coating on the surface of the membrane material, spraying the membrane material, and curing at room temperature for 12 hours after spraying to obtain the sound-insulation fireproof easy-to-clean membrane material c for the building wall. The coating is purchased from Dongguan Dawei surface technology Co., Ltd (model: 180309105034), and the dosage of the coating is as follows: 38 square meters per kg.
Application performance evaluation example:
the easy-to-clean performance of the sound-insulation fireproof easy-to-clean film materials a, b and c for the building wall prepared in the specific embodiments 1-3 is tested, the test method refers to the test method of GB/T9755-2001, the reduction rate of the reflection coefficient is calculated, no less than 10 test samples are taken, and the test average value is taken. The test results are shown in table 1.
The sound-insulation fireproof easy-cleaning film materials a, b and c for the building wall, which are prepared in the specific embodiments 1-3, are tested for flame retardant performance, the test method refers to the GB4609-84 vertical combustion method for testing the combustion performance of plastics, at least 3 test samples are tested, and the test average value is taken. The test results are shown in table 1.
TABLE 1 evaluation of Properties of Sound-insulating, fire-retardant, easy-to-clean film materials a, b, and c for building wall
Item Film material a Film material b Film material c
Reflectance reduction ratio (%) 1.89 1.44 1.65
Flame retardant rating V-0 V-0 V-0
The easy-cleaning property is reflected by the stain resistance, which is represented by the reflectance reduction rate, the smaller the reflectance reduction rate, the better the stain resistance, and the better the easy-cleaning property. As can be seen from Table 1, the sound-insulating, fireproof and easy-to-clean films a, b and c for the building wall prepared by the invention show lower reflection coefficient reduction rate, which indicates that the easy-to-clean property is good.
The grades of GB4609-84 vertical combustion method for the test method of the combustion performance of plastics can be divided into: v-0, V-1 and V-2, wherein V-0 is the highest flame retardant grade. The sound-insulation fireproof easy-cleaning film materials a, b and c for the building wall are all represented as V-0, which shows that the sound-insulation fireproof easy-cleaning film material for the building wall, prepared by the invention, has good fireproof performance.

Claims (6)

1. The preparation method of the sound-insulation fireproof easy-cleaning film material for the building wall is characterized by comprising the following steps of:
(1) preparing a membrane material: mixing SiO2-Al2O3Coating the composite glass fiber felt with the main substrate slurry by adopting dipping process equipment, and drying for 6-12 hours to prepare a membrane material for the building wall; the drying temperature is 30-50 ℃;
(2) easy-cleaning treatment of the membrane material: coating a layer of easy-to-clean coating on the surface of the membrane material, performing spraying on the membrane material, and curing at room temperature for 6-12 hours after spraying; the dosage of the coating is 30-40 square meters/kg;
the preparation method of the main body base material slurry in the step (1) comprises the following steps: stirring and mixing polyvinyl chloride particles, PVC pigment and an organic flame retardant at 180-200 ℃ to prepare main body base material slurry; the organic flame retardant is pentaerythritol phosphate melamine salt; the mass ratio of the polyvinyl chloride particles to the PVC pigment to the organic flame retardant is 1g to (0.1-0.2) g;
SiO in the step (1)2-Al2O3The preparation method of the glass fiber felt comprises the following steps: mixing SiO2Glass fiber and Al2O3Adding glass fiber into a glass fiber felt production equipment system to prepare SiO2 -Al2O3Compounding a glass fiber mat; the SiO2Glass fiber and Al2O3The dosage proportion of the glass fiber is as follows: 1: 1-2.
2. The method for preparing the sound-insulating fireproof easy-cleaning film for the building wall as claimed in claim 1, wherein the SiO is2The preparation method of the glass fiber comprises the following steps: mixing and stirring tetraethoxysilane and absolute ethyl alcohol to prepare a mixed solution a; dissolving deionized water and 5% diluted hydrochloric acid in absolute ethyl alcohol, and stirring to prepare a mixed solution b; dropwise adding the mixed solution b into the mixed solution a for 1-3 hours; after the dropwise addition is finished, preparing uniform silica sol, and aging the uniform silica sol in an oven at the temperature of between 20 and 40 ℃ for 2 to 6 hours until the viscosity reaches 40 to 90 Pa.s to prepare the silica sol to be spun; adding silica solSpinning in a spinning system, and washing, oiling and drying the spun silk to obtain silk; drying the silk thread at 60-80 ℃ for 4-6 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 400-600 ℃ for 10-12 hours to prepare SiO 2Glass fibers; the volume ratio of the tetraethoxysilane to the absolute ethyl alcohol in the mixed solution a is 1mL to (10-20) mL; the volume ratio of the deionized water to the 5% diluted hydrochloric acid to the absolute ethyl alcohol in the mixed solution b is 1mL to (1-2) mL to (3-5) mL.
3. The method for preparing the sound-insulating fireproof easy-cleaning film for the building wall as claimed in claim 1, wherein the Al is2O3The preparation method of the glass fiber comprises the following steps: uniformly mixing aluminum trichloride and isopropanol, stirring for 1-3 hours, and introducing ammonia gas for reaction for 2-4 hours; after the reaction is finished, filtering to obtain filtrate, namely the mixed solution of aluminum isopropoxide and isopropanol; dissolving aluminum isopropoxide-isopropanol mixed solution in isopropanol to prepare mixed solution a, dissolving 5% hydrochloric acid in deionized water to prepare mixed solution b, dropwise adding the mixed solution b into the mixed solution a, stirring and dropwise adding for 1-3 hours at the reaction temperature of 80-90 ℃ to prepare aluminum sol; after the dropwise addition is finished, aging the mixture at room temperature for 4-6 hours to prepare aluminum sol to be spun; adding the alumina sol into a spinning system for spinning, and washing, oiling and drying the spun silk yarn to obtain silk yarn; drying the silk thread at 70-90 ℃ for 6-8 hours to prepare gel fiber; sintering the gel fiber at the high temperature of 400-600 ℃ for 14-16 hours to obtain Al 2O3Glass fibers.
4. The preparation method of the sound-insulation fireproof easy-cleaning film material for the building wall as claimed in claim 3, wherein the mass volume ratio of the aluminum trichloride to the isopropanol is 1g to (10-20) mL; the introducing speed of the ammonia gas is 1-3 mL/min; the volume ratio of the aluminum isopropoxide-isopropanol mixed solution to the isopropanol in the mixed solution a is 1mL to (1-3) mL; the volume ratio of the 5% hydrochloric acid to the deionized water in the mixed solution b is 1mL to (10-20) mL.
5. The preparation method of the sound-insulation fireproof easy-cleaning film for the building wall as claimed in claim 1, wherein the PVC pigment is any one of the following pigments: yellow PVC pigment, blue PVC pigment, green PVC pigment and red PVC pigment.
6. The sound-insulation fireproof easy-cleaning film material for the building wall is characterized by being prepared by the preparation method of the sound-insulation fireproof easy-cleaning film material for the building wall, which is disclosed by any one of claims 1-5.
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