CN112227080B - Multifunctional coating cloth and preparation method thereof - Google Patents

Multifunctional coating cloth and preparation method thereof Download PDF

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Publication number
CN112227080B
CN112227080B CN202010955230.9A CN202010955230A CN112227080B CN 112227080 B CN112227080 B CN 112227080B CN 202010955230 A CN202010955230 A CN 202010955230A CN 112227080 B CN112227080 B CN 112227080B
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coating
parts
cloth
base cloth
multifunctional
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CN112227080A (en
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吴飞
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Songzi Xingfei New Material Co ltd
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Songzi Xingfei New Material Co ltd
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
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    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
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    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
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    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
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    • D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
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    • D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
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    • D06N3/0015—Artificial 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
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    • D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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    • D06N3/06—Artificial 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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    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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Abstract

The application discloses a multifunctional coating cloth and a preparation method thereof. The multi-layer functional coating is prepared on the surface of the base cloth, and the coating composition is optimized, so that the multifunctional coating cloth with good performances of self-cleaning resistance to fouling, weather resistance, flexibility, high tensile strength and the like is finally obtained, and the multifunctional coating cloth can be widely produced and applied and meets market demands.

Description

Multifunctional coating cloth and preparation method thereof
Technical Field
The application relates to the technical field of cloth preparation, in particular to multifunctional coated cloth and a preparation method thereof.
Background
Functional coated cloths are widely used in industry, agriculture and life, among which canvas, tarpaulin and the like are the most common and most widely used, and have good economic benefits in production. There are also various kinds of canvas and tarpaulin on the market, mainly the surface of the base cloth is coated with a layer of PVC adhesive layer, and the base PVC adhesive layer is usually obtained by mixing a base PVC resin with a phthalate type plasticizer. The outdoor cloth has the problems of sun exposure and rain dust pollution, and part or all of the cloth cannot migrate due to volatilization and the like, so that the initial performance is lost, and the characteristics of weather resistance, wear resistance, cold resistance and the like are seriously reduced.
How to prepare a cloth with excellent properties remains the focus of prior art research.
Disclosure of Invention
In order to meet market demands, the multifunctional coated fabric and the preparation method thereof provided by the application have the advantages of good antifouling and self-cleaning performances, weather resistance, flexibility, high tensile strength and the like, effectively prolong the service life, and can be widely applied to industry, agriculture and life.
In order to achieve the purpose of the application, the application adopts the following technical scheme:
a multifunctional coating cloth comprises a polyester fiber base cloth, a super-hydrophobic coating, an infrared emission coating, a PVC coating and a self-cleaning waterproof layer.
Further, the thickness of the super-hydrophobic coating is 0.1-0.5mm.
Further, the thickness of the infrared emission coating is 0.5-1mm.
Further, the thickness of the PVC coating is 1-3mm.
Further, the self-cleaning waterproof layer is 0.5-1mm.
The preparation method of the multifunctional coating cloth comprises the following steps:
(1) Selecting polyester fiber, setting warp yarn linear density and weft yarn linear density, and weaving the polyester fiber on a biaxial warp knitting machine to obtain base cloth.
(2) And placing the base fabric into 0.1-0.5mol/L NaOH solution for hydroxylation treatment for 1-3min, so that hydroxyl groups are formed on the surface of the base fabric.
(3) Preparing a super-hydrophobic coating: dissolving a silane coupling agent with amino functional groups in absolute ethyl alcohol to prepare a solution with the concentration of 0.01-0.05mol/L, hydrolyzing for 12-24h, adding 0.02-0.1g of nano titanium dioxide particles, and uniformly stirring; immersing the base cloth treated in the step (2) into the solution for 3-5min, taking out, and drying at 40-60 ℃ to form the super-hydrophobic coating on the surface of the base cloth.
(4) Preparing an infrared emission coating: dispersing 40-60 parts of thermosetting organic silicon resin and 10-15 parts of butyl rubber in 20-50 parts of glycerol solvent, adding 10-20 parts of alumina powder and 5-10 parts of graphene powder in the heating and stirring process, immersing the base cloth treated in the step (3) into the solution for 3-5min, taking out, and drying at 50-80 ℃ to form an infrared emission coating on the surface of the super-hydrophobic coating.
(5) And (3) preparation of a PVC coating: uniformly stirring and mixing 100-120 parts of PVC paste resin, 15-30 parts of 1, 2-cyclohexane diisononyl phthalate, 10-20 parts of diisodecyl adipate, 5-10 parts of epoxidized soybean oil, 1-5 parts of barium-zinc composite stabilizer, 0.5-1 part of butadiene, 0.5-1 part of N-phenyl-N' -isopropyl p-phenylenediamine and 5-10 parts of carbon fiber to prepare a doctor-bar glue stock, and using a plurality of groups of rollers of a doctor-bar coating device to draw the base cloth to a glue stock outlet to doctor-bar the glue stock on two sides of the base cloth; then immediately plasticizing by a vertical furnace, and water-cooling outside the furnace.
(6) Preparing a self-cleaning waterproof layer: dispersing 2-5g of nano silicon dioxide particles in 80-150mL of absolute ethyl alcohol, performing ultrasonic treatment for 20-30min to form stable silicon dioxide suspension, uniformly spraying adhesive on the surface of the base cloth, spraying the silicon dioxide suspension on the surface, repeating for 2-3 times, and drying in an oven at 60-80 ℃ for 10-30min.
(7) Trimming and cutting.
Further, in the step (5), the furnace temperature of the vertical furnace is 120-200 ℃, the conveying speed of the base cloth is 50-100cm/min, and the coating amount is 300-500g/m 2 。
Further, in the step (1), the warp yarn linear density is 12-15 pieces/cm, the weft yarn linear density is 15-20 pieces/cm, and the knitting quality is 100-400g/m 2 。
Further, the silane coupling agent in the step (3) is selected from one or more of 3-aminopropyl triethoxysilane, 3-aminopropyl trimethoxysilane and N- (2-aminoethyl) -3-aminopropyl trimethoxysilane.
Compared with the prior art, the application has the following beneficial technical effects:
1. the multi-layer functional coating is prepared on the surface of the base cloth, and the coating composition is optimized, so that the multifunctional coating cloth with good performances of self-cleaning resistance to fouling, weather resistance, flexibility, high tensile strength and the like is finally obtained, and the multifunctional coating cloth can be widely produced and applied and meets market demands.
2. The PVC coating of the application does not use phthalate ester and other plasticizers, so that the problem of poor migration can be avoided, and the plasticizer 1, 2-cyclohexanedicarboxylic acid diisononyl ester used in the application has excellent volatility resistance, heat resistance, no benzene ring structure, no toxicity, environmental protection and environmental protection; diisodecyl adipate is a cold-resistant plasticizer, and can improve the cold resistance of the base fabric coating to a certain extent; in addition, the epoxidized soybean oil has good compatibility with the PVC paste resin, belongs to a macromolecular plasticizer with weaker polarity, can weaken Van der Waals force among PVC paste resin molecules when the temperature is increased, and can improve the plasticity of the PVC paste resin. The application can obviously improve the performance of the coating through the common use of three types of plasticizers.
3. According to the application, the hydroxyl sites are preformed on the surface of the base cloth, so that the reaction between the amino groups and the hydroxyl groups in the subsequent silane coupling agent containing the amino functional groups is facilitated, and a covalent bond is formed on the surface of the base cloth, so that the binding force between the super-hydrophobic coating and the base cloth is effectively improved.
4. According to the application, the infrared emission coating is prepared on the surface of the base cloth, so that infrared light in sunlight can be effectively reflected, excessive heat absorption of the base cloth is avoided through a radiation heat dissipation mode, thereby playing roles of heat insulation and temperature reduction, and excessive temperature rise of the environment shielded by the multifunctional cloth can be avoided, so that the infrared emission coating can be widely applied to life.
Detailed Description
The present application will be further described in detail with reference to the following examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Example 1
A multifunctional coating cloth and a preparation method thereof comprise the following steps:
(1) Selecting polyester fiber, setting warp yarn linear density and weft yarn linear density, and weaving the polyester fiber on a biaxial warp knitting machine to obtain base cloth. The warp yarn density is 12 pieces/cm, the weft yarn density is 15 pieces/cm, and the knitting quality is 100g/m 2 。
(2) And (3) placing the base fabric in a 0.1mol/L NaOH solution for hydroxylation treatment for 1min, so that hydroxyl groups are formed on the surface of the base fabric.
(3) Preparing a super-hydrophobic coating: dissolving 3-aminopropyl triethoxysilane in absolute ethyl alcohol to prepare a solution with the concentration of 0.01mol/L, hydrolyzing for 12 hours, adding 0.02g of nano titanium dioxide particles, and uniformly stirring; immersing the base cloth treated in the step (2) into the solution for 3min, taking out, and drying at 40 ℃ to form the super-hydrophobic coating on the surface of the base cloth.
(4) Preparing an infrared emission coating: dispersing 40 parts of thermosetting organic silicon resin and 10 parts of butyl rubber in 20 parts of glycerol solvent, adding 10 parts of aluminum oxide powder and 5 parts of graphene powder in the heating and stirring process, immersing the base cloth treated in the step (3) into the solution for 3min, taking out, and drying at 50 ℃ to form an infrared emission coating on the surface of the super-hydrophobic coating.
(5) And (3) preparation of a PVC coating: uniformly stirring and mixing 100 parts of PVC paste resin, 15 parts of 1, 2-cyclohexane diisononyl phthalate, 10 parts of diisodecyl adipate (flame retardant plasticizer), 5 parts of epoxy soybean oil, 1 part of barium-zinc composite stabilizer, 0.5 part of butadiene, 0.5 part of N-phenyl-N' -isopropyl p-phenylenediamine and 5 parts of carbon fiber to prepare a blade coating sizing material, and utilizing a plurality of groups of rollers of a blade coating device to lead the base cloth to a sizing material outlet to blade coat the sizing material on two sides of the base cloth; then immediately plasticizing by a vertical furnace, and water-cooling outside the furnace. The furnace temperature of the vertical furnace is 120 ℃, the conveying speed of the base cloth is 50cm/min, and the coating amount is 500g/m 2 。
(6) Preparing a self-cleaning waterproof layer: dispersing 2g of nano silicon dioxide particles in 80mL of absolute ethyl alcohol, performing ultrasonic treatment for 20min to form stable silicon dioxide suspension, uniformly spraying an adhesive on the surface of the base cloth, spraying the silicon dioxide suspension on the surface, repeating for 2 times, and drying in a 60 ℃ oven for 10min.
(7) Trimming and cutting.
The multifunctional cloth with the self-cleaning waterproof layer structure is obtained.
Example 2
A multifunctional coating cloth and a preparation method thereof comprise the following steps:
(1) Selecting polyester fiber, setting warp yarn linear density and weft yarn linear density, and weaving the polyester fiber on a biaxial warp knitting machine to obtain base cloth. Warp yarn density of 15 pieces/cm, weft yarn density of 20 pieces/cm, knitting quality of 400g/m 2 。
(2) And placing the base fabric in a 0.5mol/L NaOH solution for hydroxylation treatment for 3min, so that hydroxyl groups are formed on the surface of the base fabric.
(3) Preparing a super-hydrophobic coating: dissolving 3-aminopropyl trimethoxy silane in absolute ethyl alcohol to prepare a solution with the concentration of 0.05mol/L, hydrolyzing for 24 hours, adding 0.1g of nano titanium dioxide particles, and uniformly stirring; immersing the base cloth treated in the step (2) into the solution for 5min, taking out, and drying at 60 ℃ to form the super-hydrophobic coating on the surface of the base cloth.
(4) Preparing an infrared emission coating: dispersing 60 parts of thermosetting organic silicon resin and 15 parts of butyl rubber in 50 parts of glycerol solvent, adding 20 parts of aluminum oxide powder and 10 parts of graphene powder in the heating and stirring process, immersing the base cloth treated in the step (3) into the solution for 5min, taking out, and drying at 80 ℃ to form an infrared emission coating on the surface of the super-hydrophobic coating.
(5) And (3) preparation of a PVC coating: uniformly stirring and mixing 120 parts of PVC paste resin, 30 parts of 1, 2-cyclohexane diisononyl phthalate, 20 parts of diisodecyl adipate, 10 parts of epoxy soybean oil, 5 parts of barium-zinc composite stabilizer, 1 part of butadiene, 1 part of N-phenyl-N' -isopropyl p-phenylenediamine and 10 parts of carbon fibers to prepare a doctor-bar sizing material, and using a plurality of groups of rollers of a doctor-bar coating device to draw the base cloth to a sizing material outlet and doctor-bar the sizing material on two sides of the base cloth; then immediately plasticizing by a vertical furnace, and water-cooling outside the furnace.
(6) Preparing a self-cleaning waterproof layer: dispersing 5g of nano silicon dioxide particles in 150mL of absolute ethyl alcohol, performing ultrasonic treatment for 30min to form stable silicon dioxide suspension, uniformly spraying an adhesive on the surface of the base cloth, spraying the silicon dioxide suspension on the surface, repeating for 3 times, and drying in an oven at 80 ℃ for 30min.
(7) Trimming and cutting.
The multifunctional cloth with the self-cleaning waterproof layer structure is obtained.
Example 3
A multifunctional coating cloth and a preparation method thereof comprise the following steps:
(1) Selecting polyester fiber and setting warp yarn densityAnd weaving the polyester fiber on a biaxial warp knitting machine to obtain the base fabric. The warp yarn density is 14 pieces/cm, the weft yarn density is 18 pieces/cm, and the knitting quality is 310g/m 2 。
(2) And placing the base fabric in a 0.3mol/L NaOH solution for hydroxylation treatment for 2min, so that hydroxyl groups are formed on the surface of the base fabric.
(3) Preparing a super-hydrophobic coating: dissolving N- (2-aminoethyl) -3-aminopropyl trimethoxysilane in absolute ethyl alcohol to prepare a solution with the concentration of 0.03mol/L, hydrolyzing for 18 hours, adding 0.5g of nano titanium dioxide particles, and uniformly stirring; immersing the base cloth treated in the step (2) into the solution for 4min, taking out, and drying at 50 ℃ to form the super-hydrophobic coating on the surface of the base cloth.
(4) Preparing an infrared emission coating: dispersing 50 parts of thermosetting organic silicon resin and 12 parts of butyl rubber in 30 parts of glycerol solvent, adding 15 parts of aluminum oxide powder and 8 parts of graphene powder in the heating and stirring process, immersing the base cloth treated in the step (3) into the solution for 4min, taking out, and drying at 60 ℃ to form an infrared emission coating on the surface of the super-hydrophobic coating.
(5) And (3) preparation of a PVC coating: uniformly stirring and mixing 110 parts of PVC paste resin, 20 parts of 1, 2-cyclohexane diisononyl phthalate, 15 parts of diisodecyl adipate, 8 parts of epoxidized soybean oil, 3 parts of barium-zinc composite stabilizer, 1 part of butadiene, 1 part of N-phenyl-N' -isopropyl p-phenylenediamine and 8 parts of carbon fibers to prepare a doctor-bar glue stock, and using a plurality of groups of rollers of a doctor-bar coating device to draw the base cloth to a glue stock outlet and doctor-bar the glue stock on two sides of the base cloth; then immediately plasticizing by a vertical furnace, and water-cooling outside the furnace.
(6) Preparing a self-cleaning waterproof layer: dispersing 4g of nano silicon dioxide particles in 120mL of absolute ethyl alcohol, performing ultrasonic treatment for 25min to form stable silicon dioxide suspension, uniformly spraying an adhesive on the surface of the base cloth, spraying the silicon dioxide suspension on the surface, repeating for 2 times, and drying in a 70 ℃ oven for 20min.
(7) Trimming and cutting.
The multifunctional cloth with the self-cleaning waterproof layer structure is obtained.
Each index test was performed on the multifunctional cloth obtained in examples 1 to 3.
1. Peel strength test: the test is carried out according to national standard GB/T2791-1995, and the test conditions are as follows: the stretching speed is 120mm/min, the clamping distance is 80mm, and the sample size is 100mm multiplied by 20mm; the test temperatures were room temperature, 100℃and 150℃respectively. The test results are recorded in table 1.
TABLE 1
Room temperature (N/5 cm) 100℃(N/5cm) 150℃(N/5cm)
Example 1 1715 1468 1270
Example 2 1721 1386 1353
Example 3 1689 1503 1247
The result shows that the multifunctional cloth prepared by the application has excellent anti-stripping strength, and still maintains good anti-stripping strength at higher temperature. An environmental application that can meet solar insolation is described.
2. And respectively measuring the warp breaking strength and weft breaking strength of the multifunctional cloth by adopting a digital display electronic tension tester. The test results are recorded in table 2.
TABLE 2
Radial fracture Strength (N) Radial fracture Strength (N)
Example 1 2568 1568
Example 2 2489 1786
Example 3 2544 1712
As shown by the test result of a tensile test, the multifunctional cloth prepared by the application has excellent fracture resistance.
3. The flame retardant property of the multifunctional cloth is measured by using a common fabric combustion experiment method. The test results are recorded in table 3.
TABLE 3 Table 3
As shown by the test result of a combustion experiment, the multifunctional cloth prepared by the application has excellent flame retardant property.
4. Contact angle test. The contact angles of the multifunctional cloths of examples 1-3 were tested to be 157.7 °, 152.3 °, 161.5, respectively. The test result shows that the surface is hydrophobic, which indicates that the multifunctional cloth prepared by the application has good self-cleaning performance.
5. The multifunctional light source is arranged under an ultraviolet lamp light source for artificial aging test, and the illumination intensity is 10W/m 2 And (3) illuminating for 20h, and turning off the illumination for 4h, and performing continuous testing circularly. The yellowness index and the coating cracking were recorded, and the results are shown in Table 4.
TABLE 4 Table 4
Test results show that the multifunctional cloth of the application maintains excellent weather resistance under high-intensity illumination.
6. The surface reflectivities of the multifunctional cloths prepared in examples 1 to 3 were measured using an infrared reflectance meter, and the test results are recorded in table 5.
TABLE 5
Example 1 Example 2 Example 3
Infrared reflectance (%) 77.4 70.9 74.1
The measurement results show that the multifunctional cloth coating prepared by the application has good infrared reflection performance, can effectively reflect infrared rays, and prevents the base cloth from absorbing excessive heat, thereby playing roles of heat insulation and temperature reduction, and being capable of avoiding the excessive temperature rise of the environment shielded by the multifunctional cloth, so that the multifunctional cloth coating can be widely applied to life.
7. In order to examine the effect of the hydroxylation of the base fabric on the binding force of the base fabric coating, comparative example 1 was made according to the procedure of example 1, wherein step (2) was omitted. And carrying out stripping experiments on the prepared base fabric coating. The peel strength of the base fabric coating prepared in example 1 of the present application was 78.4N/mm, while the peel strength of the base fabric coating prepared in comparative example 1 was 51.7N/mm. Therefore, the hydroxylation step can obviously improve the binding force of the base cloth coating, and the coating is less prone to falling off, so that the service life of the multifunctional cloth is prolonged.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the application. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the application or exceeding the scope of the application as defined in the accompanying claims.

Claims (4)

1. The multifunctional coating cloth is characterized by comprising a polyester fiber base cloth, a super-hydrophobic coating, an infrared emission coating, a PVC coating and a self-cleaning waterproof layer;
the thickness of the super-hydrophobic coating is 0.1-0.5mm;
the thickness of the infrared emission coating is 0.5-1mm;
the thickness of the PVC coating is 1-3mm;
the self-cleaning waterproof layer is 0.5-1mm;
the preparation method of the multifunctional coating cloth comprises the following steps:
(1) Selecting polyester fibers, setting warp yarn linear density and weft yarn linear density, and weaving the polyester fibers on a biaxial warp knitting machine to obtain base cloth;
(2) Placing the base fabric into 0.1-0.5mol/LNaOH solution for hydroxylation treatment for 1-3min to form hydroxyl on the surface of the base fabric;
(3) Preparing a super-hydrophobic coating: dissolving a silane coupling agent with amino functional groups in absolute ethyl alcohol to prepare a solution with the concentration of 0.01-0.05mol/L, hydrolyzing for 12-24h, adding 0.02-0.1g of nano titanium dioxide particles, and uniformly stirring; immersing the base cloth treated in the step (2) into the solution for 3-5min, taking out, and drying at 40-60 ℃ to form a super-hydrophobic coating on the surface of the base cloth;
(4) Preparing an infrared emission coating: dispersing 40-60 parts of thermosetting organic silicon resin and 10-15 parts of butyl rubber in 20-50 parts of glycerol solvent, adding 10-20 parts of alumina powder and 5-10 parts of graphene powder in the heating and stirring process, immersing the base cloth treated in the step (3) in the solution for 3-5min, taking out, and drying at 50-80 ℃ to form an infrared emission coating on the surface of the super-hydrophobic coating;
(5) Preparing a PVC coating: uniformly stirring and mixing 100-120 parts of PVC paste resin, 15-30 parts of 1, 2-cyclohexane diisononyl phthalate, 10-20 parts of diisodecyl adipate, 5-10 parts of epoxidized soybean oil, 1-5 parts of barium-zinc composite stabilizer, 0.5-1 part of butadiene, 0.5-1 part of N-phenyl-N' -isopropyl p-phenylenediamine and 5-10 parts of carbon fiber to prepare a doctor-bar glue stock, and using a plurality of groups of rollers of a doctor-bar coating device to draw the base cloth to a glue stock outlet to doctor-bar the glue stock on two sides of the base cloth; then immediately plasticizing by a vertical furnace, and water-cooling outside the furnace;
(6) Preparing a self-cleaning waterproof layer: dispersing 2-5g of nano silicon dioxide particles in 80-150mL of absolute ethyl alcohol, performing ultrasonic treatment for 20-30min to form stable silicon dioxide suspension, uniformly spraying adhesive on the surface of the base cloth, spraying the silicon dioxide suspension on the surface, repeating for 2-3 times, and drying in an oven at 60-80 ℃ for 10-30min;
(7) Trimming and cutting.
2. The multifunctional coating cloth according to claim 1, wherein the furnace temperature of the vertical furnace in step (5) is 120-200 ℃, the substrate conveying speed is 50-100cm/min, and the coating amount is 300-500g/m 2 。
3. The multifunctional coated fabric according to claim 1, wherein in the step (1), the warp yarn density is 12-15 pieces/cm, the weft yarn density is 15-20 pieces/cm, and the weaving quality is 100-400g/m 2 。
4. The multifunctional coating cloth according to claim 1, wherein the silane coupling agent in step (3) is selected from one or more of 3-aminopropyl triethoxysilane, 3-aminopropyl trimethoxysilane, N- (2-aminoethyl) -3-aminopropyl trimethoxysilane.
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