CN113201945A - Anti-hair-oil artificial leather and preparation method thereof - Google Patents
Anti-hair-oil artificial leather and preparation method thereof Download PDFInfo
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- CN113201945A CN113201945A CN202110353242.9A CN202110353242A CN113201945A CN 113201945 A CN113201945 A CN 113201945A CN 202110353242 A CN202110353242 A CN 202110353242A CN 113201945 A CN113201945 A CN 113201945A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—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
- D06N3/047—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 fluoropolymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—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
- D06N3/0011—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 non-woven fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/142—Hydrophobic
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- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/145—Oleophobic
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- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/146—Soilproof, soil repellent
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- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Abstract
The invention provides a head oil resistant artificial leather, which is prepared by taking polyvinyl chloride, polyester fiber and diisooctyl phthalate as raw materials, preparing a mixed solution through the steps of constant temperature, stirring, dissolving and the like, preparing polymer fiber by adopting an electrostatic spinning process, preparing polymer base cloth through the process methods of opening, carding, lapping and the like, generating an oil resistant film layer on the base cloth by utilizing a hydrothermal reaction, mixing and washing with deionized water and absolute ethyl alcohol, and drying. The leather prepared by the method has super hydrophobicity and super oleophobic property, is oil-repellent and hydrophobic, can effectively prevent pollutants and moisture from permeating into the leather, has a good effect of removing the head oil, and has strong antifouling capability and wide application range.
Description
Technical Field
The invention relates to the technical field of leather, in particular to hair oil resistant artificial leather and a preparation method thereof.
Background
Leather is a material commonly used in daily life, and is used in various aspects such as wearing caps and furniture manufacture. However, because the leather is exposed to the external environment for a long time and is easily polluted by pollutants such as dust and the like, the existing leather has no anti-pollution capability, and the leather is contacted with alkaline substances in the repeated cleaning process, on one hand, the performance of the leather can be damaged, and on the other hand, the leather is easily worn after being cleaned for a long time.
With the continuous development of leather technology, artificial leather is commonly used for manufacturing various leather products, and the increasingly advanced manufacturing process thereof is widely adopted. Nowadays, the surface process of artificial leather and the fiber structure of the base material are continuously optimized, and the aim of achieving the real leather effect even better than the real leather effect is the direction continuously pursued by the artificial leather industry. But the characteristic reason of the artificial leather is that the oil resistance of the waterproof agent is not strong and the service life is short. Common oil-resistant leather is generally added with an oil stain-resistant coating on the surface, the oil-resistant effect is not ideal, and the performance requirement with higher requirement is difficult to achieve. Therefore, it is necessary to design leather with high oil stain resistance, and the manufacturing process of the leather does not affect the performance of the leather.
Disclosure of Invention
In order to overcome the problem of poor oil stain resistance of automotive interior leather in the prior art, the hair oil resistant artificial leather and the preparation method are provided.
The technical scheme of the invention is as follows: a preparation method of the artificial leather resistant to the head oil comprises the following steps:
(1) dissolving polyvinyl chloride and polyester fibers in N, N-dimethylformamide or N, N-dimethylacetamide, wherein the mass fraction of the polyvinyl chloride is 5-20%, the mass fraction of the polyester fibers is 5-10%, and the balance is N, N-dimethylformamide or N, N-dimethylacetamide, stirring for 3-12 hours at the temperature of 70 ℃ by using a magnetic stirrer at 800r/min, and then completely dissolving to obtain a mixed solution;
(2) mixing the mixed solution, diisooctyl phthalate and an organic solvent according to the mass ratio of 1: 10, stirring at the speed of 1000-1200 r/min, and stirring at the constant temperature of 70 ℃ for 8-12 h at a high speed to obtain a spinning solution;
(3) transferring the spinning liquid into an injector, controlling the flow rate of the solution in the electrostatic spinning process by using a micro-injection pump, putting the solution on an electrostatic spinning device for spinning, adjusting the propelling speed of the injection pump to be 0.5-5 ml per hour, setting the translation distance to be 10-20 cm, setting the spinning time to be 1-5 hours, and drying the obtained spun yarn for 6-12 hours to obtain the polymer composite fiber; opening the polymer composite fibers to obtain opened fibers, carding the opened base fabric at a large spacing and a low speed to obtain carded fibers, and performing cross lapping on the carded fibers to obtain the polyvinyl chloride/polyester fiber base fabric;
(4) uniformly mixing heptadecafluorodecyltrimethoxysilane, vinyltriethoxysilane, deionized water and absolute ethyl alcohol according to the volume ratio of 2:4:6:90, then dripping acetic acid to adjust the pH value to 6.5, and stirring for 6-8 hours at 800r/min by using a magnetic stirrer to form a composite solution; and then soaking the polyvinyl chloride/polyester fiber base cloth obtained in the last step into the composite solution, reacting for 0.5-1 hour at 100-150 ℃ to form an oil stain resistant film layer on the surface of the base cloth, taking out the base cloth, naturally cooling to room temperature, mixing and washing for 3 times by using deionized water and absolute ethyl alcohol, and finally drying for 24 hours at the constant temperature of 85 ℃ to obtain the hair oil resistant artificial leather.
Further, the organic solvent in the step (2) is one or a mixture of two solvents selected from dichloromethane, chloroform, tetrahydrofuran and dioxane.
Preferably, perfluoropolyether or perfluorohexane is added to the spinning solution obtained in the step (2) in an amount of not more than 10% by mass of the spinning solution.
Preferably, the base cloth soaked by the composite solution is taken out in the step (4), then compression roller treatment is carried out for 5-10 min, the operation is repeated for 2-3 times to obtain a semi-finished product, the semi-finished product is naturally cooled to room temperature, the semi-finished product is mixed and washed for 3 times by deionized water and absolute ethyl alcohol, and finally the semi-finished product is dried at the constant temperature of 85 ℃ for 24 hours to obtain the hair oil resistant artificial leather.
Preferably, in the step (4), the impregnation rate of the composite solution into the polyvinyl chloride/polyester fiber base fabric is 75% or more.
Further, in the electrostatic spinning process in the step (3), a positive high voltage of a high voltage power supply is connected with a syringe needle, the number of the syringe needle is 18-24, an aluminum foil is used as a receiving device, and the spinning voltage is 10-20 kV.
Further, the opening process in the step (3) is as follows: and (3) opening the polymer composite fibers by adopting two-step opening, wherein the linear speeds of the opening rollers are 600-800 m/min and 850-1000 m/min respectively.
Further, the carding process in the step (3) is as follows: carding the loosened base fabric at a large gauge and a low speed, wherein the cylinder speed is controlled to be 600-750 m/min, the working roller speed is 40-50 m/min, the stripping roller speed is 110-135 m/min, and the doffer speed is 15-20 m/min.
Further, the lapping process in the step (3) is as follows: and (3) paving two layers of nets on the carded fibers in a cross lapping mode, wherein the drafting ratio is controlled to be 1.20-2.40 times.
In the oil-stain-resistant artificial polyvinyl chloride/polyester fiber base cloth prepared by the preparation method, the fluorosilicone glue layers are randomly arranged and uniformly covered on the surface of the polymer fiber to form a micro-nano composite structure. In the base fabric, the diameter of the polymer fiber is 1.0-2.5 μm.
Compared with the prior art, the invention has the beneficial effects that: according to the artificial leather resistant to the head oil, the siloxane and the fluorine-based siloxane are hydrolyzed on the base cloth to form the fluorine-silicon sol layer, so that the artificial leather has good antifouling performance, and in addition, the fiber layer of the base cloth is also coated with the fluorine compound, so that the prepared leather has super hydrophobicity and super oleophobic property, is oil-repellent and hydrophobic, effectively prevents pollutants and moisture from permeating into the leather, has a good effect of removing the head oil, and is strong in antifouling capacity and wide in application range.
Drawings
FIG. 1 is a flow chart of a method for preparing the anti-dandruff artificial leather of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A preparation method of the anti-hair-oil artificial leather has a preparation process flow as shown in figure 1, and specifically comprises the following steps:
(1) dissolving polyvinyl chloride and polyester fiber in N, N-dimethylformamide, wherein the mass fraction of the polyvinyl chloride is 15%, the mass fraction of the polyester fiber is 10%, and the balance is the N, N-dimethylformamide, stirring for 3 hours at the temperature of 70 ℃ by using a magnetic stirrer at the speed of 800r/min, and then completely dissolving to obtain a mixed solution.
(2) Mixing the mixed solution, diisooctyl phthalate and dichloromethane solvent according to the mass ratio of 1: 10, stirring at the stirring speed of 1000r/min, and stirring at the constant temperature of 70 ℃ for 8 hours to obtain spinning solution; perfluoropolyether was added to the obtained spinning solution in an amount of 10% by mass of the spinning solution.
(3) Transferring the spinning liquid into an injector, controlling the solution flow in the electrostatic spinning process by using a micro-injection pump, putting the solution flow on an electrostatic spinning device for spinning, pressing a syringe needle head with the positive high pressure of a high-voltage power supply, wherein the syringe needle head is 18-gauge, an aluminum foil is used as a receiving device, the spinning voltage is 10kV, the propelling speed of an injection pump is adjusted to be 0.5 ml/hour, the translation distance is 10 cm, the spinning time is 1 hour, and drying the obtained spun yarn for 6 hours to obtain the polymer composite fiber; and then opening the polymer composite fibers, opening the polymer composite fibers by adopting two times of opening, wherein the linear speeds of opening rollers are respectively 600m/min and 850m/min to obtain opened fibers, carding the opened base fabric by adopting a large-spacing and low-speed mode, wherein the cylinder speed is controlled to be 600m/min, the working roller speed is 40m/min, the stripping roller speed is 110m/min, the doffer speed is 15m/min to obtain carded fibers, paving two layers of nets on the carded fibers in a cross lapping mode, and controlling the draft ratio to be 1.2 times to obtain the polyvinyl chloride/polyester fiber base fabric.
(4) Uniformly mixing heptadecafluorodecyltrimethoxysilane, vinyltriethoxysilane, deionized water and absolute ethyl alcohol according to the volume ratio of 2:4:6:90, dripping acetic acid to adjust the pH value to 6.5, and stirring for 6 hours at 800r/min by using a magnetic stirrer to form a composite solution; and then soaking the polyvinyl chloride/polyester fiber base cloth obtained in the last step into the composite solution, wherein the soaking rate of the base cloth is more than 75%, reacting for 0.5 hour at 100 ℃ to form an oil stain resistant film layer on the surface of the base cloth, taking out the base cloth, then performing compression roller treatment for 5min, repeating for 3 times to obtain a semi-finished product, naturally cooling the semi-finished product to room temperature, mixing and washing with deionized water and absolute ethyl alcohol for 3 times, and finally drying at the constant temperature of 85 ℃ for 24 hours to obtain the oil-resistant artificial leather.
In the oil stain resistant artificial polyvinyl chloride/polyester fiber base cloth prepared by the preparation method, the fluorosilicone glue layers are randomly arranged and uniformly covered on the surface of the polymer fiber to form a micro-nano composite structure. In the base fabric, the polymer fibers had a diameter of 1.0 μm.
Example 2
A preparation method of the anti-hair-oil artificial leather has a preparation process flow as shown in figure 1, and specifically comprises the following steps:
(1) dissolving polyvinyl chloride and polyester fiber in N, N-dimethylacetamide, wherein the mass fraction of the polyvinyl chloride is 20%, the mass fraction of the polyester fiber is 5%, and the balance is N, N-dimethylacetamide, stirring for 12 hours at the temperature of 70 ℃ by using a magnetic stirrer at the speed of 800r/min, and then completely dissolving to obtain a mixed solution;
(2) mixing the mixed solution, diisooctyl phthalate and dioxane solvent according to the mass ratio of 1: 10, stirring at the speed of 1200r/min, and stirring at the constant temperature of 70 ℃ for 12 hours to obtain spinning solution; to the obtained spinning solution was added fluorohexane in an amount of 8% by mass of the spinning solution.
(3) Transferring the spinning liquid into an injector, controlling the solution flow in the electrostatic spinning process by using a micro-injection pump, putting the solution flow on an electrostatic spinning device for spinning, pressing a syringe needle head with the positive high pressure of a high-voltage power supply in a pressing mode, wherein the syringe needle head is 24-th, an aluminum foil is used as a receiving device, the spinning voltage is 20kV, the propelling speed of an injection pump is adjusted to be 5 milliliters per hour, the translation distance is set to be 20 centimeters, the spinning time is 5 hours, and drying the obtained spinning for 10 hours to obtain the polymer composite fiber; and then opening the polymer composite fibers, opening the polymer composite fibers by adopting two times of opening, wherein the linear speeds of opening rollers are 800m/min and 1000m/min respectively to obtain opened fibers, carding the opened base fabric by adopting a large-spacing and low-speed mode, wherein the cylinder speed is controlled to be 750m/min, the working roller speed is 50m/min, the stripping roller speed is 135m/min, the doffer speed is 20m/min to obtain carded fibers, paving two layers of nets on the carded fibers in a cross lapping mode, and controlling the draft ratio to be 2.4 times to obtain the polyvinyl chloride/polyester fiber base fabric.
(4) Uniformly mixing heptadecafluorodecyltrimethoxysilane, vinyltriethoxysilane, deionized water and absolute ethyl alcohol according to the volume ratio of 2:4:6:90, dripping acetic acid to adjust the pH value to 6.5, and stirring for 6 hours at 800r/min by using a magnetic stirrer to form a composite solution; and then soaking the polyvinyl chloride/polyester fiber base cloth obtained in the last step into the composite solution, wherein the soaking rate of the base cloth is more than 75%, reacting for 0.5 hour at 100 ℃ to form an oil stain resistant film layer on the surface of the base cloth, taking out the base cloth, then performing compression roller treatment for 10min, repeating for 2 times to obtain a semi-finished product, naturally cooling the semi-finished product to room temperature, mixing and washing with deionized water and absolute ethyl alcohol for 3 times, and finally drying at the constant temperature of 85 ℃ for 24 hours to obtain the oil-resistant artificial leather.
In the oil stain resistant artificial polyvinyl chloride/polyester fiber base cloth prepared by the preparation method, the fluorosilicone glue layers are randomly arranged and uniformly covered on the surface of the polymer fiber to form a micro-nano composite structure. In the base fabric, the polymer fiber had a diameter of 2.5 μm.
According to the artificial leather resistant to the head oil, the siloxane and the fluorine-based siloxane are hydrolyzed on the base cloth to form the fluorine-silicon sol layer, so that the artificial leather has good antifouling performance, and in addition, the fiber layer of the base cloth is also coated with the fluorine compound, so that the prepared leather has super hydrophobicity and super oleophobic property, is oil-repellent and hydrophobic, effectively prevents pollutants and moisture from permeating into the leather, has a good effect of removing the head oil, and is strong in antifouling capacity and wide in application range.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A preparation method of the artificial leather resistant to the head oil comprises the following steps:
(1) dissolving polyvinyl chloride and polyester fibers in N, N-dimethylformamide or N, N-dimethylacetamide, wherein the mass fraction of the polyvinyl chloride is 5-20%, the mass fraction of the polyester fibers is 5-10%, and the balance is N, N-dimethylformamide or N, N-dimethylacetamide, stirring for 3-12 hours at the temperature of 70 ℃ by using a magnetic stirrer at 800r/min, and then completely dissolving to obtain a mixed solution;
(2) mixing the mixed solution, diisooctyl phthalate and an organic solvent according to the mass ratio of 1: 10, stirring at the speed of 1000-1200 r/min, and stirring at the constant temperature of 70 ℃ for 8-12 h at a high speed to obtain a spinning solution;
(3) transferring the spinning liquid into an injector, controlling the flow rate of the solution in the electrostatic spinning process by using a micro-injection pump, putting the solution on an electrostatic spinning device for spinning, adjusting the propelling speed of the injection pump to be 0.5-5 ml per hour, setting the translation distance to be 10-20 cm, setting the spinning time to be 1-5 hours, and drying the obtained spun yarn for 6-12 hours to obtain the polymer composite fiber; opening the polymer composite fibers to obtain opened fibers, carding the opened base fabric at a large spacing and a low speed to obtain carded fibers, and performing cross lapping on the carded fibers to obtain the polyvinyl chloride/polyester fiber base fabric;
(4) uniformly mixing heptadecafluorodecyltrimethoxysilane, vinyltriethoxysilane, deionized water and absolute ethyl alcohol according to the volume ratio of 2:4:6:90, then dripping acetic acid to adjust the pH value to 6.5, and stirring for 6-8 hours at 800r/min by using a magnetic stirrer to form a composite solution; and then soaking the polyvinyl chloride/polyester fiber base cloth obtained in the last step into the composite solution, reacting for 0.5-1 hour at 100-150 ℃ to form an oil stain resistant film layer on the surface of the base cloth, taking out the base cloth, naturally cooling to room temperature, mixing and washing for 3 times by using deionized water and absolute ethyl alcohol, and finally drying for 24 hours at the constant temperature of 85 ℃ to obtain the hair oil resistant artificial leather.
2. The method for preparing the scalp oil resistant artificial leather according to claim 1, wherein the method comprises the following steps: the organic solvent in the step (2) is one or a mixture of two solvents of dichloromethane, chloroform, tetrahydrofuran and dioxane.
3. The method for preparing the scalp oil resistant artificial leather according to claim 1, wherein the method comprises the following steps: adding perfluoropolyether or perfluorohexane which is not more than 10 percent of the mass of the spinning solution into the spinning solution obtained in the step (2).
4. The method for preparing the scalp oil resistant artificial leather according to claim 1, wherein the method comprises the following steps: and (4) taking out the base cloth soaked by the composite solution in the step (4), then carrying out compression roller treatment for 5-10 min, repeating for 2-3 times to obtain a semi-finished product, naturally cooling the semi-finished product to room temperature, mixing and washing the semi-finished product for 3 times by using deionized water and absolute ethyl alcohol, and finally drying the semi-finished product for 24 hours at a constant temperature of 85 ℃ to obtain the hair oil resistant artificial leather.
5. The method for preparing the scalp oil resistant artificial leather according to claim 1, wherein the method comprises the following steps: in the step (4), the immersion rate of the composite solution in the polyvinyl chloride/polyester fiber base cloth is more than 75%.
6. The method for preparing the scalp oil resistant artificial leather according to claim 1, wherein the method comprises the following steps: in the electrostatic spinning process in the step (3), a positive high voltage of a high voltage power supply is connected with a syringe needle in a pressing mode, the syringe needle is 18-24 in number, an aluminum foil serves as a receiving device, and the spinning voltage is 10-20 kV.
7. The method for preparing the scalp oil resistant artificial leather according to claim 1, wherein the method comprises the following steps: the opening process in the step (3) is as follows: and (3) opening the polymer composite fibers by adopting two-step opening, wherein the linear speeds of the opening rollers are 600-800 m/min and 850-1000 m/min respectively.
8. The method for preparing the scalp oil resistant artificial leather according to claim 1, wherein the method comprises the following steps: the carding process in the step (3) is as follows: carding the loosened base fabric at a large gauge and a low speed, wherein the cylinder speed is controlled to be 600-750 m/min, the working roller speed is 40-50 m/min, the stripping roller speed is 110-135 m/min, and the doffer speed is 15-20 m/min.
9. The head oil resistant artificial leather is characterized in that: the polyvinyl chloride/polyester fiber base cloth is prepared by the preparation method of claim 1, wherein the fluorosilicone glue layers are randomly arranged and uniformly covered on the surface of the polymer fiber to form a micro-nano composite structure.
10. The artificial leather resistant to head oil according to claim 9, wherein: the diameter of the polymer fiber in the polyvinyl chloride/polyester fiber base cloth is 1.0-2.5 μm.
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| CN105002656A (en) * | 2014-12-29 | 2015-10-28 | 中国科学院烟台海岸带研究所 | Hydrophobic film with self-cleaning function, preparation method thereof and application thereof |
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| CN105002656A (en) * | 2014-12-29 | 2015-10-28 | 中国科学院烟台海岸带研究所 | Hydrophobic film with self-cleaning function, preparation method thereof and application thereof |
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