CN112227080A - Multifunctional coated fabric and preparation method thereof - Google Patents
Multifunctional coated fabric and preparation method thereof Download PDFInfo
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- CN112227080A CN112227080A CN202010955230.9A CN202010955230A CN112227080A CN 112227080 A CN112227080 A CN 112227080A CN 202010955230 A CN202010955230 A CN 202010955230A CN 112227080 A CN112227080 A CN 112227080A
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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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- D06M11/32—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
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic System; Titanates; Zirconates; Stannates; Plumbates
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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
- D06M11/79—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 with silicon dioxide, silicic acids or their salts
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- 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
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- 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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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- 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
- D06N3/0009—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 knitted fabrics
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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
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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
- D06N3/0036—Polyester fibres
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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
- D06N3/0056—Artificial 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
- D06N3/0061—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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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial 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
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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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
- D06N3/04—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
- 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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- D06M2200/10—Repellency against liquids
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Abstract
The invention discloses a multifunctional coated fabric and a preparation method thereof. By preparing a plurality of layers of functional coatings on the surface of the base fabric and optimizing the composition of the coatings, the multifunctional coated fabric with good performances such as antifouling, self-cleaning, weather resistance, flexibility, tensile strength and the like is finally obtained, and the multifunctional coated fabric can be widely produced and applied and meets the market demand.
Description
Technical Field
The invention relates to the technical field of cloth preparation, in particular to multifunctional coated cloth and a preparation method thereof.
Background
The functional coating cloth is widely applied to industry, agriculture and life, wherein canvas, tarpaulin and the like are the most common and widely used, and have good economic benefit in production. Various canvases and tarpaulins are also available in the market, wherein a PVC adhesive layer is mainly coated on the surface of a base cloth, and the base cloth is usually obtained by mixing base PVC resin with phthalate ester and other types of plasticizers. The outdoor cloth has the problems of sunshine insolation and rainwater dust pollution, and part or all of the outdoor 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 cloth with excellent performance is still the focus of the prior art research.
Disclosure of Invention
In order to meet the market demand, the invention provides the multifunctional coated fabric and the preparation method thereof, the multifunctional coated fabric has good performances of antifouling, self-cleaning, weather resistance, flexibility, tensile strength and the like, the service life is effectively prolonged, and the multifunctional coated fabric can be widely applied to industry, agriculture and life.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a multifunctional coated fabric comprises a polyester fiber base fabric, 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 0.1-0.5 mm.
Further, the thickness of the infrared emission coating is 0.5-1 mm.
Further, the thickness of the PVC coating is 1-3 mm.
Further, the self-cleaning waterproof layer is 0.5-1 mm.
A preparation method of multifunctional coated fabric comprises the following steps:
(1) and selecting polyester fibers, and setting the warp yarn density and the weft yarn density to weave the polyester fibers on a biaxial warp knitting machine to obtain the base fabric.
(2) And putting the base cloth into 0.1-0.5mol/L NaOH solution for hydroxylation for 1-3min to form hydroxyl on the surface of the base cloth.
(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; and (3) 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 during heating and stirring, immersing the base cloth treated in the step (3) into the solution for 3-5min, taking out, and drying at 50-80 ℃, thus forming the infrared emission coating on the surface of the super-hydrophobic coating.
(5) And preparing a PVC coating: stirring and uniformly mixing 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 scraping and coating sizing material according to 100-one part of diisodecyl adipate, and dragging the sizing material to two sides of the base cloth by utilizing a plurality of groups of rollers of a scraper coating device and keeping balanced tension to a sizing material outlet; then, the mixture was immediately passed through a vertical furnace to be plasticized and cooled with water outside the furnace.
(6) And preparing a self-cleaning waterproof layer: dispersing 2-5g of nano silicon dioxide particles in 80-150mL of absolute ethyl alcohol, carrying out ultrasonic treatment for 20-30min to form stable silicon dioxide suspension, uniformly spraying an adhesive on the surface of a base fabric, spraying the silicon dioxide suspension on the surface, repeating the steps for 2-3 times, and drying in an oven at 60-80 ℃ for 10-30 min.
(7) And (6) trimming and cutting.
Further, the furnace temperature of the vertical furnace in the step (5) is 120-2。
Further, the density of the warp yarn in the step (1) is 12-15/cm, the density of the weft yarn is 15-20/cm, and the weaving quality is 100-2。
Further, the silane coupling agent in the step (3) is one or more selected from 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane and N- (2-aminoethyl) -3-aminopropyltrimethoxysilane.
Compared with the prior art, the invention has the following beneficial technical effects:
1. by preparing a plurality of layers of functional coatings on the surface of the base fabric and optimizing the composition of the coatings, the multifunctional coated fabric with good performances such as antifouling, self-cleaning, weather resistance, flexibility, tensile strength and the like is finally obtained, and the multifunctional coated fabric can be widely produced and applied and meets the market demand.
2. The plasticizer 1, 2-cyclohexane diisononyl phthalate used in the PVC coating has excellent volatility resistance and heat resistance, does not contain a benzene ring structure, is nontoxic, environment-friendly and environment-friendly; the diisodecyl adipate is a cold-resistant plasticizer and can improve the cold resistance of the base cloth 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 the van der Waals force among the molecules of the PVC paste resin when the temperature is increased, and can improve the plasticity of the PVC paste resin. The invention obviously improves the performance of the coating by using three types of plasticizers together.
3. According to the invention, hydroxyl sites are formed on the surface of the base fabric in advance, so that the reaction between amino and hydroxyl in the subsequent silane coupling agent containing amino functional groups is facilitated, a covalent bond is formed on the surface of the base fabric, and the binding force between the super-hydrophobic coating and the base fabric is effectively improved.
4. According to the invention, 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, heat insulation and cooling effects are achieved, excessive temperature rise of the environment shielded by the multifunctional cloth can be avoided, and the multifunctional cloth can be widely applied to life.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example 1
A multifunctional coated fabric and a preparation method thereof comprise the following steps:
(1) selectingAnd (3) taking the polyester fiber, setting the warp yarn density and the weft yarn density, and knitting the polyester fiber on a biaxial warp knitting machine to obtain the base fabric. The warp yarn density is 12 pieces/cm, the weft yarn density is 15 pieces/cm, and the weaving quality is 100g/m2。
(2) And putting the base cloth into 0.1mol/L NaOH solution for hydroxylation for 1min to form hydroxyl on the surface of the base cloth.
(3) Preparing a super-hydrophobic coating: dissolving 3-aminopropyltriethoxysilane in absolute ethanol to prepare a solution with the concentration of 0.01mol/L, hydrolyzing for 12h, adding 0.02g of nano titanium dioxide particles, and stirring uniformly; and (3) immersing the base cloth treated in the step (2) into the solution for 3min, taking out the base cloth, and drying at 40 ℃ to form the super-hydrophobic coating on the surface of the base cloth.
(4) Preparing an infrared emission coating: and (3) dispersing 40 parts of thermosetting organic silicon resin and 10 parts of butyl rubber in 20 parts of glycerol solvent, adding 10 parts of alumina 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 ℃, namely forming an infrared emission coating on the surface of the super-hydrophobic coating.
(5) And preparing a PVC coating: stirring and uniformly 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 epoxidized 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 scraping coating sizing material, and dragging the sizing material to two sides of the base cloth by utilizing a plurality of groups of rollers of scraper coating equipment and keeping balanced tension to a sizing material outlet; then, the mixture was immediately passed through a vertical furnace to be plasticized and cooled with water 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/m2。
(6) And preparing a self-cleaning waterproof layer: dispersing 2g of nano silicon dioxide particles in 80mL of absolute ethyl alcohol, carrying out ultrasonic treatment for 20min to form stable silicon dioxide suspension, uniformly spraying an adhesive on the surface of a base fabric, spraying the silicon dioxide suspension on the surface, repeating the steps for 2 times, and drying in an oven at 60 ℃ for 10 min.
(7) And (6) trimming and cutting.
And obtaining the polyester fiber base cloth, the super-hydrophobic coating, the infrared emission coating, the PVC coating and the self-cleaning waterproof layer structure multifunctional cloth.
Example 2
A multifunctional coated fabric and a preparation method thereof comprise the following steps:
(1) and selecting polyester fibers, and setting the warp yarn density and the weft yarn density to weave the polyester fibers on a biaxial warp knitting machine to obtain the base fabric. The warp yarn density is 15 pieces/cm, the weft yarn density is 20 pieces/cm, and the weaving quality is 400g/m2。
(2) And putting the base cloth into 0.5mol/L NaOH solution for hydroxylation treatment for 3min, so that hydroxyl is formed on the surface of the base cloth.
(3) Preparing a super-hydrophobic coating: dissolving 3-aminopropyltrimethoxysilane 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 stirring uniformly; and (3) immersing the base cloth treated in the step (2) into the solution for 5min, taking out the base cloth, and drying at 60 ℃ to form the super-hydrophobic coating on the surface of the base cloth.
(4) Preparing an infrared emission coating: and (3) dispersing 60 parts of thermosetting organic silicon resin and 15 parts of butyl rubber in 50 parts of glycerol solvent, adding 20 parts of alumina powder and 10 parts of graphene powder in the heating and stirring process, soaking the base cloth treated in the step (3) into the solution for 5min, taking out, and drying at 80 ℃, namely forming an infrared emission coating on the surface of the super-hydrophobic coating.
(5) And preparing a PVC coating: stirring and uniformly mixing 120 parts of PVC paste resin, 30 parts of 1, 2-cyclohexane diisononyl phthalate, 20 parts of diisodecyl adipate, 10 parts of epoxidized 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 fiber to prepare a scraping coating sizing material, and dragging the sizing material to two sides of the base cloth by utilizing a plurality of groups of rollers of a scraper coating device and maintaining balanced tension to a sizing material outlet; then, the mixture was immediately passed through a vertical furnace to be plasticized and cooled with water outside the furnace.
(6) And 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 a base fabric, spraying the silicon dioxide suspension on the surface, repeating the steps for 3 times, and drying in an oven at 80 ℃ for 30 min.
(7) And (6) trimming and cutting.
And obtaining the polyester fiber base cloth, the super-hydrophobic coating, the infrared emission coating, the PVC coating and the self-cleaning waterproof layer structure multifunctional cloth.
Example 3
A multifunctional coated fabric and a preparation method thereof comprise the following steps:
(1) and selecting polyester fibers, and setting the warp yarn density and the weft yarn density to weave the polyester fibers 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 weaving quality is 310g/m2。
(2) And putting the base cloth into 0.3mol/L NaOH solution for hydroxylation treatment for 2min, so that hydroxyl is formed on the surface of the base cloth.
(3) Preparing a super-hydrophobic coating: dissolving N- (2-aminoethyl) -3-aminopropyltrimethoxysilane in absolute ethyl alcohol to prepare a solution with the concentration of 0.03mol/L, hydrolyzing for 18h, adding 0.5g of nano titanium dioxide particles, and uniformly stirring; and (3) immersing the base cloth treated in the step (2) into the solution for 4min, taking out the base cloth, 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 alumina powder and 8 parts of graphene powder in the heating and stirring process, soaking the base cloth treated in the step (3) into the solution for 4min, taking out, and drying at 60 ℃, namely forming an infrared emission coating on the surface of the super-hydrophobic coating.
(5) And preparing a PVC coating: stirring and uniformly 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 fiber to prepare a scraping coating sizing material, and dragging the sizing material to two sides of the base cloth by utilizing a plurality of groups of rollers of a scraper coating device and maintaining balanced tension to a sizing material outlet; then, the mixture was immediately passed through a vertical furnace to be plasticized and cooled with water outside the furnace.
(6) And 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 the steps for 2 times, and drying in an oven at 70 ℃ for 20 min.
(7) And (6) trimming and cutting.
And obtaining the polyester fiber base cloth, the super-hydrophobic coating, the infrared emission coating, the PVC coating and the self-cleaning waterproof layer structure multifunctional cloth.
Each index of the multifunctional cloths obtained in examples 1 to 3 was tested.
1. And (3) testing the peel strength: the test is carried out according to the 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 20 mm; the test temperatures were room temperature, 100 ℃ and 150 ℃. The test results are reported in table 1.
TABLE 1
| Room temperature (N/5cm) | 100℃(N/5cm) | 150℃(N/5cm) | |
| Example 1 | 1715 | 1468 | 1270 |
| Example 2 | 1721 | 1386 | 1353 |
| Example 3 | 1689 | 1503 | 1247 |
The results show that the multifunctional cloth prepared by the invention has excellent peel strength, and still keeps good peel strength at higher temperature. Thereby meeting the environmental application of solar insolation.
2. And respectively measuring the warp-wise breaking strength and the weft-wise breaking strength of the multifunctional cloth by adopting a digital display electronic type tensile testing machine. The test results are reported in table 2.
TABLE 2
| Radial rupture Strength (N) | Radial rupture Strength (N) | |
| Example 1 | 2568 | 1568 |
| Example 2 | 2489 | 1786 |
| Example 3 | 2544 | 1712 |
According to the test result of the tensile test, the multifunctional cloth prepared by the method has excellent anti-fracture performance.
3. The flame retardant property of the multifunctional cloth is measured by using a common fabric combustion experiment method. The test results are reported in table 3.
TABLE 3
According to the test result of the combustion experiment, the multifunctional cloth prepared by the method has excellent flame retardant property.
4. And (5) testing the contact angle. The contact angles of the multifunctional cloths of examples 1 to 3 were tested to be 157.7 °, 152.3 °, and 161.5, respectively. The test result shows that the surface is hydrophobic, which shows that the multifunctional cloth prepared by the invention has good self-cleaning performance.
5. Arranging the multifunctional under an ultraviolet lamp light source for artificial aging test with the illumination intensity of 10W/m2And (5) illuminating for 20h, closing the illumination for 4h, and circularly and continuously testing. The yellowness index, coating cracking, and results are reported in table 4.
TABLE 4
The test result shows that the multifunctional cloth still keeps excellent weather resistance under high-intensity illumination.
6. The surface reflectance of the multifunctional cloths prepared in examples 1 to 3 was measured using an infrared reflectance measuring instrument, 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 result shows that the multifunctional cloth coating prepared by the invention has good infrared reflection performance, can effectively reflect infrared rays and prevent the base cloth from absorbing excessive heat, thereby playing the roles of heat insulation and cooling, and preventing the multifunctional cloth from shielding the environment from excessively increasing the temperature, so that the multifunctional cloth coating can be widely applied to life.
7. To examine the effect of hydroxylation of a substrate on the adhesion of the substrate coating, the present invention follows the procedure of example 1 as comparative example 1, omitting step (2). And the prepared base cloth coating is subjected to a peeling experiment. The peel strength of the base fabric coating prepared in inventive example 1 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 not easy to fall off, so that the service life of the multifunctional cloth is prolonged.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A multifunctional coated fabric is characterized by comprising a polyester fiber base fabric, a super-hydrophobic coating, an infrared emission coating, a PVC coating and a self-cleaning waterproof layer.
2. The multifunctional coated fabric according to claim 1, wherein the thickness of the superhydrophobic coating is 0.1-0.5 mm.
3. The multifunctional coated fabric according to claim 1, wherein the thickness of the infrared emission coating layer is 0.5-1 mm.
4. The multifunctional coated fabric according to claim 1, wherein the thickness of the PVC coating is 1-3 mm.
5. The multifunctional coated fabric according to claim 1, wherein the self-cleaning waterproof layer is 0.5-1 mm.
6. A method for preparing the multifunctional coated fabric as claimed in any one of claims 1 to 5, comprising the steps of:
(1) selecting polyester fibers, and setting the warp yarn density and the weft yarn density to weave the polyester fibers on a biaxial warp knitting machine to obtain base cloth;
(2) putting the base cloth into 0.1-0.5mol/L NaOH solution for hydroxylation for 1-3min to form hydroxyl on the surface of the base cloth;
(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) into the solution for 3-5min, taking out, and drying at 50-80 ℃, namely forming an infrared emission coating on the surface of the super-hydrophobic coating;
(5) and preparing a PVC coating: stirring and uniformly mixing 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 scraping and coating sizing material according to 100-one part of diisodecyl adipate, and dragging the sizing material to two sides of the base cloth by utilizing a plurality of groups of rollers of a scraper coating device and keeping balanced tension to a sizing material outlet; then immediately introducing the mixture into a vertical furnace for plasticizing, and cooling the mixture by water outside the furnace;
(6) and 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 an adhesive on the surface of a base fabric, spraying the silicon dioxide suspension on the surface, repeating the steps for 2-3 times, and drying in an oven at the temperature of 60-80 ℃ for 10-30 min;
(7) and (6) trimming and cutting.
7. The method as claimed in claim 6, wherein the temperature of the vertical furnace in step (5) is 200 ℃, the substrate cloth conveying speed is 50-100cm/min, and the coating amount is 500g/m2。
8. The method for preparing multifunctional coated fabric as claimed in claim 6, wherein the warp yarn density in step (1) is 12-15/cm, the weft yarn density is 15-20/cm, and the weaving quality is 100-400g/m2。
9. The method for preparing multifunctional coated cloth according to claim 6, wherein the silane coupling agent in the step (3) is one or more selected from the group consisting of 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, and N- (2-aminoethyl) -3-aminopropyltrimethoxysilane.
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