CN111172761B - Preparation method of washable super-hydrophobic polyester fabric - Google Patents
Preparation method of washable super-hydrophobic polyester fabric Download PDFInfo
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- CN111172761B CN111172761B CN202010103410.4A CN202010103410A CN111172761B CN 111172761 B CN111172761 B CN 111172761B CN 202010103410 A CN202010103410 A CN 202010103410A CN 111172761 B CN111172761 B CN 111172761B
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- 239000004744 fabric Substances 0.000 title claims abstract description 75
- 229920000728 polyester Polymers 0.000 title claims abstract description 63
- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000001035 drying Methods 0.000 claims abstract description 36
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- BPCXHCSZMTWUBW-UHFFFAOYSA-N triethoxy(1,1,2,2,3,3,4,4,5,5,8,8,8-tridecafluorooctyl)silane Chemical compound CCO[Si](OCC)(OCC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F BPCXHCSZMTWUBW-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 4
- 241000508269 Psidium Species 0.000 claims description 65
- 239000000203 mixture Substances 0.000 claims description 42
- 238000003756 stirring Methods 0.000 claims description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 12
- 239000006228 supernatant Substances 0.000 claims description 12
- 239000003208 petroleum Substances 0.000 claims description 9
- 229920004933 Terylene® Polymers 0.000 claims description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 238000002137 ultrasound extraction Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000002390 rotary evaporation Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 11
- 238000007598 dipping method Methods 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 36
- 239000000047 product Substances 0.000 description 27
- 229920002689 polyvinyl acetate Polymers 0.000 description 16
- 239000011118 polyvinyl acetate Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 10
- 238000002845 discoloration Methods 0.000 description 6
- 230000002209 hydrophobic effect Effects 0.000 description 5
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- 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
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- 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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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- 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
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
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- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides a preparation method of washable super-hydrophobic polyester fabric, which comprises the steps of blending PVA with a large number of hydroxyl groups on side groups and titanium dioxide in water to form a coating solution, dipping the polyester fabric in the coating solution, drying the polyester fabric after treatment to form a film, and mixing the coating solution with tridecafluorooctyltriethoxysilane and the like to react to obtain the washable super-hydrophobic polyester fabric. The washable super-hydrophobic polyester fabric prepared by the method has strong super-hydrophobic performance and washing fastness.
Description
Technical Field
The invention relates to the field of fabrics, in particular to a preparation method of washable super-hydrophobic polyester fabric.
Background
In recent years, automobiles increasingly enter common people, and the automobile industry also presents an unprecedented vigorous development situation. The demand of people for automobiles not only stays at the level of 'tools for riding instead of walk', but also has become a higher quality requirement of people for automobile products in the aspects of aesthetics, comfort, safety and the like, and elegant, comfortable, fashionable, attractive, green, environment-friendly and safe interior space. Therefore, as the most direct visual focus in the living space of the automobile, the functionality of the automotive interior fabric is valued by more and more consumers, and becomes a new bright point and a new demand for the research and development of automotive interior fabric products. By introducing and applying new materials and new processes, the new requirements of consumers can be met, and the technical level, market competitiveness and product added value of automobile interior fabric enterprises can be improved. At present, the greatest problem of hydrophobic or super-hydrophobic automobile interior fabric is poor washing fastness.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of washable super-hydrophobic polyester fabric, and the prepared polyester fabric has strong super-hydrophobic performance and washing fastness.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a preparation method of washable super-hydrophobic polyester fabric comprises the following steps:
(1) adding PVA and titanium dioxide into water, stirring until the PVA and the titanium dioxide are uniformly mixed to obtain a coating solution, soaking the polyester fabric into the coating solution, stirring for 4 hours, transferring into a drying oven at 200 ℃ and placing for 3 minutes, taking out, immediately transferring into a refrigerator at 5 ℃ and placing for 1 minute, taking out, standing for 15 minutes, and drying to form a film to obtain a coating polyester fabric;
(2) removing seed shells of guava seeds, taking out guava seed kernels, crushing and grinding the guava seed kernels, sieving with a 40-mesh sieve, drying at 80 ℃ to obtain guava seed kernel powder, adding the guava seed kernel powder into petroleum ether, stirring until the guava seed kernel powder is uniformly mixed, placing the mixture into an ultrasonic generator, performing ultrasonic extraction at 50 ℃ for 35 minutes to obtain an extracting solution, centrifuging the extracting solution for 30 minutes to obtain a supernatant, performing rotary evaporation on the supernatant to recover a solvent, and drying at 80 ℃ to obtain a guava seed extract;
(3) and (3) adding the coated polyester fabric obtained in the step (1) and the guava seed extract obtained in the step (2) into an ethanol solution of tridecafluorooctyltriethoxysilane, stirring for 1 hour, adding water, stirring at 60 ℃ for reaction for 3-6 hours to obtain a reaction solution, performing suction filtration on the reaction solution to obtain a solid, and drying the solid at 80 ℃ to obtain the washable super-hydrophobic polyester fabric.
Further, in the step (1), the particle size of the titanium dioxide is 80-200nm, and the weight ratio of the PVA, the titanium dioxide, the water and the polyester fabric is 20:1:100: 15.
Furthermore, in the step (1), the drying and film forming temperature is 80-90 ℃, and the drying and film forming time is 30-60 minutes.
Further, in the step (2) of the present invention, the weight ratio of the guava seed kernel powder to the petroleum ether is 1: 11.
Further, in the step (2) of the present invention, the ultrasonic power of the ultrasonic generator is 200W, and the ultrasonic frequency is 35 kHz.
Further, in the step (2) of the present invention, the centrifugation speed is 5000 rpm.
Furthermore, in the step (3) of the invention, the mass concentration of the ethanol solution of tridecafluorooctyltriethoxysilane is 10%, and the weight ratio of the coated terylene fabric obtained in the step (1), the guava seed extract obtained in the step (2), the ethanol solution of tridecafluorooctyltriethoxysilane and water is (2-3):0.3:20: 25.
Compared with the prior art, the invention has the following beneficial effects:
1) blending PVA (polyvinyl acetate) with a large number of hydroxyl groups on the side groups and titanium dioxide in water to form a coating solution, then dipping the polyester fabric in the coating solution, forming an uneven rough surface on the surface of the polyester fabric by the treated titanium dioxide, enabling the PVA to play a role of an adhesive to adhere the titanium dioxide to the surface of the polyester fabric without falling off, then drying to form a coating polyester fabric (the coating formed by the PVA and the titanium dioxide is wrapped on the surface of the polyester fabric), mixing and reacting the coating with tridecafluorooctyltriethoxysilane and the like, replacing the hydroxyl groups on the surface of the PVA by fluorine-containing groups in the tridecafluorooctyltriethoxysilane during the reaction process, and converting the hydrophilicity of the coating into the hydrophobicity so as to obtain the polyester fabric with stronger hydrophobicity; in addition, the tridecafluorooctyltriethoxysilane also has better stability, thereby effectively improving the washing fastness of the product.
2) The titanium dioxide used in the step (1) of the invention also has better hydrophobicity and better ultraviolet resistance, but the compatibility between the titanium dioxide and the terylene fabric is general, and the bonding strength of the titanium dioxide and the terylene fabric is influenced, so the invention also carries out the operation of short-time low-temperature treatment after short-time high-temperature treatment in the step (1), and the operation can increase the roughness of the rough surface formed by the titanium dioxide on the surface of the terylene fabric, improve the bonding strength of the titanium dioxide and the terylene fabric, and further effectively improve the hydrophobicity and the light resistance of the product.
3) According to the invention, petroleum ether is used as an extraction solvent to carry out ultrasonic extraction on guava seeds to obtain a guava seed extract, and the guava seed extract is added into a mixed reaction of the coating polyester fabric and tridecafluorooctyltriethoxysilane in the step (3), so that the guava seed extract can improve the reaction degree of the coating polyester fabric and the tridecafluorooctyltriethoxysilane, further improve the hydrophobicity and the washfastness of the product, and has better thermal stability and light stability, thereby effectively improving the heat resistance and the light resistance of the product.
Detailed Description
The present invention will be described in detail with reference to specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1
The washable super-hydrophobic polyester fabric is prepared according to the following steps:
(1) adding PVA and titanium dioxide into water, stirring until the mixture is uniformly mixed to obtain a coating solution, dipping the polyester fabric into the coating solution, stirring for 4 hours, transferring the mixture into a drying oven at 200 ℃ and placing the mixture for 3 minutes, taking the mixture out, immediately transferring the mixture into a refrigerator at 5 ℃ and placing the mixture for 1 minute, taking the mixture out, standing the mixture for 15 minutes, and drying the mixture at 85 ℃ to form a film for 50 minutes to obtain a coated polyester fabric, wherein the particle size of the titanium dioxide is 80-200nm, and the weight ratio of the PVA to the titanium dioxide to the water to the polyester fabric is 20:1:100: 15;
(2) removing seed shells of guava seeds, taking out guava seed kernels, crushing the guava seed kernels, grinding, sieving with a 40-mesh sieve, drying at 80 ℃ to obtain guava seed kernel powder, adding the guava seed kernel powder into 11 times of petroleum ether by weight, stirring until the guava seed kernels are uniformly mixed, placing the mixture into an ultrasonic generator with the ultrasonic power of 200W and the ultrasonic frequency of 35kHz, performing ultrasonic extraction at 50 ℃ for 35 minutes to obtain an extracting solution, centrifuging the extracting solution at 5000 revolutions per minute at the centrifugal speed of 35kHz to obtain a supernatant, performing rotary evaporation on the supernatant to recover a solvent, and drying at 80 ℃ to obtain a guava seed extract;
(3) adding the coated polyester fabric obtained in the step (1) and the guava seed extract obtained in the step (2) into an ethanol solution of tridecafluorooctyltriethoxysilane with the mass concentration of 10%, stirring for 1 hour, adding water, stirring and reacting for 4 hours at 60 ℃ to obtain a reaction solution, carrying out suction filtration on the reaction solution to obtain a solid, and drying the solid at 80 ℃ to obtain the washable super-hydrophobic polyester fabric, wherein the weight ratio of the coated polyester fabric obtained in the step (1), the guava seed extract obtained in the step (2), the ethanol solution of tridecafluorooctyltriethoxysilane and water is 2.5:0.3:20: 25.
Example 2
The washable super-hydrophobic polyester fabric is prepared according to the following steps:
(1) adding PVA and titanium dioxide into water, stirring until the mixture is uniformly mixed to obtain a coating solution, dipping the polyester fabric into the coating solution, stirring for 4 hours, transferring the mixture into a drying oven at 200 ℃ and placing the mixture for 3 minutes, taking the mixture out, immediately transferring the mixture into a refrigerator at 5 ℃ and placing the mixture for 1 minute, taking the mixture out, standing the mixture for 15 minutes, and drying the mixture at 90 ℃ to form a film for 30 minutes to obtain a coated polyester fabric, wherein the particle size of the titanium dioxide is 80-200nm, and the weight ratio of the PVA to the titanium dioxide to the water to the polyester fabric is 20:1:100: 15;
(2) removing seed shells of guava seeds, taking out guava seed kernels, crushing the guava seed kernels, grinding, sieving with a 40-mesh sieve, drying at 80 ℃ to obtain guava seed kernel powder, adding the guava seed kernel powder into 11 times of petroleum ether by weight, stirring until the guava seed kernels are uniformly mixed, placing the mixture into an ultrasonic generator with the ultrasonic power of 200W and the ultrasonic frequency of 35kHz, performing ultrasonic extraction at 50 ℃ for 35 minutes to obtain an extracting solution, centrifuging the extracting solution at 5000 revolutions per minute at the centrifugal speed of 35kHz to obtain a supernatant, performing rotary evaporation on the supernatant to recover a solvent, and drying at 80 ℃ to obtain a guava seed extract;
(3) adding the coated polyester fabric obtained in the step (1) and the guava seed extract obtained in the step (2) into an ethanol solution of tridecafluorooctyltriethoxysilane with the mass concentration of 10%, stirring for 1 hour, adding water, stirring and reacting for 5 hours at 60 ℃ to obtain a reaction solution, carrying out suction filtration on the reaction solution to obtain a solid, and drying the solid at 80 ℃ to obtain the washable super-hydrophobic polyester fabric, wherein the weight ratio of the coated polyester fabric obtained in the step (1), the guava seed extract obtained in the step (2), the ethanol solution of tridecafluorooctyltriethoxysilane and water is 2:0.3:20: 25.
Example 3
The washable super-hydrophobic polyester fabric is prepared according to the following steps:
(1) adding PVA and titanium dioxide into water, stirring until the mixture is uniformly mixed to obtain a coating solution, dipping the polyester fabric into the coating solution, stirring for 4 hours, transferring the mixture into a drying oven at 200 ℃ and placing the mixture for 3 minutes, taking the mixture out, immediately transferring the mixture into a refrigerator at 5 ℃ and placing the mixture for 1 minute, taking the mixture out, standing the mixture for 15 minutes, and drying the mixture at 80 ℃ to form a film for 60 minutes to obtain a coated polyester fabric, wherein the particle size of the titanium dioxide is 80-200nm, and the weight ratio of the PVA to the titanium dioxide to the water to the polyester fabric is 20:1:100: 15;
(2) removing seed shells of guava seeds, taking out guava seed kernels, crushing the guava seed kernels, grinding, sieving with a 40-mesh sieve, drying at 80 ℃ to obtain guava seed kernel powder, adding the guava seed kernel powder into 11 times of petroleum ether by weight, stirring until the guava seed kernels are uniformly mixed, placing the mixture into an ultrasonic generator with the ultrasonic power of 200W and the ultrasonic frequency of 35kHz, performing ultrasonic extraction at 50 ℃ for 35 minutes to obtain an extracting solution, centrifuging the extracting solution at 5000 revolutions per minute at the centrifugal speed of 35kHz to obtain a supernatant, performing rotary evaporation on the supernatant to recover a solvent, and drying at 80 ℃ to obtain a guava seed extract;
(3) adding the coated polyester fabric obtained in the step (1) and the guava seed extract obtained in the step (2) into an ethanol solution of tridecafluorooctyltriethoxysilane with the mass concentration of 10%, stirring for 1 hour, adding water, stirring and reacting for 3 hours at 60 ℃ to obtain a reaction solution, carrying out suction filtration on the reaction solution to obtain a solid, and drying the solid at 80 ℃ to obtain the washable super-hydrophobic polyester fabric, wherein the weight ratio of the coated polyester fabric obtained in the step (1), the guava seed extract obtained in the step (2), the ethanol solution of tridecafluorooctyltriethoxysilane and water is 3:0.3:20: 25.
Example 4
The washable super-hydrophobic polyester fabric is prepared according to the following steps:
(1) adding PVA and titanium dioxide into water, stirring until the mixture is uniformly mixed to obtain a coating solution, dipping the polyester fabric into the coating solution, stirring for 4 hours, transferring the mixture into a drying oven at 200 ℃ and placing the mixture for 3 minutes, taking the mixture out, immediately transferring the mixture into a refrigerator at 5 ℃ and placing the mixture for 1 minute, taking the mixture out, standing the mixture for 15 minutes, and drying the mixture at 90 ℃ to form a film for 40 minutes to obtain a coated polyester fabric, wherein the particle size of the titanium dioxide is 80-200nm, and the weight ratio of the PVA to the titanium dioxide to the water to the polyester fabric is 20:1:100: 15;
(2) removing seed shells of guava seeds, taking out guava seed kernels, crushing the guava seed kernels, grinding, sieving with a 40-mesh sieve, drying at 80 ℃ to obtain guava seed kernel powder, adding the guava seed kernel powder into 11 times of petroleum ether by weight, stirring until the guava seed kernels are uniformly mixed, placing the mixture into an ultrasonic generator with the ultrasonic power of 200W and the ultrasonic frequency of 35kHz, performing ultrasonic extraction at 50 ℃ for 35 minutes to obtain an extracting solution, centrifuging the extracting solution at 5000 revolutions per minute at the centrifugal speed of 35kHz to obtain a supernatant, performing rotary evaporation on the supernatant to recover a solvent, and drying at 80 ℃ to obtain a guava seed extract;
(3) adding the coated polyester fabric obtained in the step (1) and the guava seed extract obtained in the step (2) into an ethanol solution of tridecafluorooctyltriethoxysilane with the mass concentration of 10%, stirring for 1 hour, adding water, stirring and reacting for 6 hours at 60 ℃ to obtain a reaction solution, carrying out suction filtration on the reaction solution to obtain a solid, and drying the solid at 80 ℃ to obtain the washable super-hydrophobic polyester fabric, wherein the weight ratio of the coated polyester fabric obtained in the step (1), the guava seed extract obtained in the step (2), the ethanol solution of tridecafluorooctyltriethoxysilane and water is 2:0.3:20: 25.
Comparative example 1
In step (1) different from example 1, titanium dioxide was not used.
Comparative example 2
Different from example 1, the replacement of the tridecafluorooctyltriethoxysilane used in step (3) is gamma-aminopropyltriethoxysilane.
Comparative example 3
Unlike example 1, the step (1) does not include the short-time high-temperature treatment and the short-time low-temperature treatment.
Comparative example 4
Unlike example 1, step (2) was not included, and no guava seed extract was used in step (3).
The first test example: hydrophobic Performance test
The surface stable contact angles of the products obtained in examples 1 to 4 and comparative examples 1 to 4 were measured, respectively, and the larger the surface stable contact angle, the better the hydrophobicity. The results are shown in table 1:
| stable contact angle (°) of surface | |
| Example 1 | 158 |
| Example 2 | 155 |
| Example 3 | 156 |
| Example 4 | 154 |
| Comparative example 1 | 150 |
| Comparative example 2 | 133 |
| Comparative example 3 | 151 |
| Comparative example 4 | 150 |
TABLE 1
As can be seen from Table 1, the stable contact angles of the surfaces of the products prepared in examples 1 to 4 are all higher and all exceed 150 degrees, which indicates that the products prepared by the invention have better hydrophobic property and reach the super-hydrophobic standard. The steps of comparative examples 1-4 are different from example 1 in that the decrease of the stable contact angle of the surface of comparative example 2 is the largest, which shows that the tridecafluorooctyltriethoxysilane is the main factor for improving the hydrophobic property of the product; the decrease of the surface stable contact angles of comparative examples 1, 3 and 4 is smaller than that of comparative example 2, which shows that titanium dioxide, the operation of short-time high-temperature treatment and short-time low-temperature treatment in step (1) and the guava seed extract can improve the hydrophobic property of the product.
Test example two: wash resistance test
The stable contact angles of the surfaces of the products obtained in examples 1 to 4 and comparative examples 1 to 4 were measured after washing with a detergent 50 times, and the decrease rate of the stable contact angle of the surface was calculated as (stable contact angle of the surface before washing-stable contact angle of the surface after washing)/stable contact angle of the surface before washing × 100%, and the lower the decrease rate of the stable contact angle of the surface indicates the better the washing fastness. The results are shown in table 2:
| surface Stable contact Angle decrease Rate (%) | |
| Example 1 | 1.27 |
| Example 2 | 1.29 |
| Example 3 | 1.28 |
| Example 4 | 1.30 |
| Comparative example 1 | 1.27 |
| Comparative example 2 | 3.76 |
| Comparative example 3 | 1.27 |
| Comparative example 4 | 1.90 |
TABLE 2
As can be seen from Table 2, the decrease rates of the stable contact angles of the surfaces of the products prepared in examples 1 to 4 are all significantly lower, indicating that the products prepared by the invention have stronger washing fastness. The steps of comparative examples 1-4 are different from example 1 in that the increase of the decrease rate of the stable contact angle of the surface is the largest in comparative example 2, which shows that the tridecafluorooctyltriethoxysilane is the main factor for improving the washing fastness of the product; the increase of the rate of decrease of the surface stable contact angle of comparative example 4 is smaller than that of comparative example 2, which shows that the guava seed extract also has an effect of improving the washing fastness of the product.
Test example three: heat resistance test
The high temperature discoloration resistance ratings of the products prepared in examples 1 to 4 and comparative examples 1 to 4 were respectively measured using an ironing sublimation color fastness tester with reference to ISO105-X11, the test temperature was 200 ℃ and the test time was 1 minute, and higher high temperature discoloration resistance ratings indicated better heat resistance. The results are shown in Table 3:
| color fastness to high temperature rating | |
| Example 1 | Grade 5 |
| Example 2 | Grade 5 |
| Example 3 | Grade 5 |
| Example 4 | Grade 5 |
| Comparative example 1 | Grade 5 |
| Comparative example 2 | 4 stage |
| Comparative example 3 | Grade 5 |
| Comparative example 4 | Grade 3 |
TABLE 3
As can be seen from Table 3, the high temperature discoloration resistance ratings of the products obtained in examples 1-4 are all 5 grades, indicating that the products obtained by the present invention have strong heat resistance. Comparative examples 1-4 differ from example 1 in part of the steps, wherein comparative example 4 showed the greatest decrease in the high temperature discoloration resistance rating, indicating that guava seed extract is the primary factor in improving the heat resistance of the product; the decrease of the high temperature discoloration resistance rating of comparative example 2 is smaller than that of comparative example 4, which shows that the tridecafluorooctyltriethoxysilane can also improve the heat resistance of the product.
Test example four: light resistance test
The products obtained in examples 1 to 4 and comparative examples 1 to 4 were each measured for their color fastness to light by a light resistance tester with reference to the AATCC16.3 standard, and the test time was 800 hours, with higher color fastness to light indicating better light resistance. The results are shown in Table 4:
TABLE 4
As can be seen from Table 4, the light discoloration resistance ratings of the products obtained in examples 1-4 are all 5 grades, indicating that the light resistance of the products obtained according to the present invention is strong. Comparative examples 1-4 differ from example 1 in part of the procedure, wherein comparative example 4 showed the greatest decrease in the light fastness rating, indicating that guava seed extract is the primary factor in improving the light fastness of the product; the reduction in the light fastness rating of comparative example 2 is less than that of comparative example 4, indicating that tridecafluorooctyltriethoxysilane also contributes to the improvement in the light fastness of the product.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A preparation method of washable super-hydrophobic polyester fabric is characterized by comprising the following steps: the method comprises the following steps:
(1) adding PVA and titanium dioxide into water, stirring until the PVA and the titanium dioxide are uniformly mixed to obtain a coating solution, soaking the polyester fabric into the coating solution, stirring for 4 hours, transferring into a drying oven at 200 ℃ and placing for 3 minutes, taking out, immediately transferring into a refrigerator at 5 ℃ and placing for 1 minute, taking out, standing for 15 minutes, and drying to form a film to obtain a coating polyester fabric;
(2) removing seed shells of guava seeds, taking out guava seed kernels, crushing and grinding the guava seed kernels, sieving with a 40-mesh sieve, drying at 80 ℃ to obtain guava seed kernel powder, adding the guava seed kernel powder into petroleum ether, stirring until the guava seed kernel powder is uniformly mixed, placing the mixture into an ultrasonic generator, performing ultrasonic extraction at 50 ℃ for 35 minutes to obtain an extracting solution, centrifuging the extracting solution for 30 minutes to obtain a supernatant, performing rotary evaporation on the supernatant to recover a solvent, and drying at 80 ℃ to obtain a guava seed extract;
(3) and (3) adding the coated polyester fabric obtained in the step (1) and the guava seed extract obtained in the step (2) into an ethanol solution of tridecafluorooctyltriethoxysilane, stirring for 1 hour, adding water, stirring at 60 ℃ for reaction for 3-6 hours to obtain a reaction solution, performing suction filtration on the reaction solution to obtain a solid, and drying the solid at 80 ℃ to obtain the washable super-hydrophobic polyester fabric.
2. The preparation method of the washable super-hydrophobic polyester fabric according to claim 1, characterized in that: in the step (1), the particle size of the titanium dioxide is 80-200nm, and the weight ratio of the PVA, the titanium dioxide, the water and the terylene fabric is 20:1:100: 15.
3. The preparation method of the washable super-hydrophobic polyester fabric according to claim 2, characterized in that: in the step (1), the drying and film forming temperature is 80-90 ℃, and the drying and film forming time is 30-60 minutes.
4. The preparation method of the washable super-hydrophobic polyester fabric according to claim 3, characterized in that: in the step (2), the weight ratio of the guava seed kernel powder to the petroleum ether is 1: 11.
5. The preparation method of the washable super-hydrophobic polyester fabric according to claim 4, characterized in that: in the step (2), the ultrasonic power of the ultrasonic generator is 200W, and the ultrasonic frequency is 35 kHz.
6. The preparation method of the washable super-hydrophobic polyester fabric according to claim 5, characterized in that: in the step (2), the centrifugation speed is 5000 rpm.
7. The preparation method of the washable super-hydrophobic polyester fabric according to claim 6, characterized in that: in the step (3), the mass concentration of the ethanol solution of the tridecafluorooctyltriethoxysilane is 10%, and the weight ratio of the coating terylene fabric obtained in the step (1), the guava seed extract obtained in the step (2), the ethanol solution of the tridecafluorooctyltriethoxysilane and the water is (2-3):0.3:20: 25.
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| EP2990527A1 (en) * | 2014-08-18 | 2016-03-02 | Kemijski Institut | A process for preparing of cotton textiles having self-cleaning and washing resistant properties |
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| EP2990527A1 (en) * | 2014-08-18 | 2016-03-02 | Kemijski Institut | A process for preparing of cotton textiles having self-cleaning and washing resistant properties |
| CN105671934A (en) * | 2016-01-27 | 2016-06-15 | 北京服装学院 | Preparation method of double-self-cleaning fabric with lasting and good photocatalytic self-cleaning and surface super-hydrophobic effects |
| CN107141992A (en) * | 2017-05-23 | 2017-09-08 | 天津天盈新型建材有限公司 | A kind of super-hydrophobic transparent coating liquid and preparation method thereof |
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