Superamphiphobic fiber article, method of making a fiber article, and electronic device

Abstract

The application provides an ultra-dual-soluble fiber product, a fiber product preparation method and an electronic device, and belongs to the technical field of dirt-resistant dual-soluble film layers. The fiber product comprises a fiber product body and a hydrophobic and oleophobic film layer formed on the surface of the fiber product body. The hydrophobic and oleophobic film layer comprises at least one rough structure layer formed by polymerization of low-carbon fluorine-containing hydrocarbon. The rough structure layer is formed with nanoscale wrinkles. The fiber product of the application has strong oil stain resistance, is easy to clean, and has strong wear resistance. The preparation process of the fiber product is simple, the cost is low, and the fiber product is conducive to large-scale industrial production.

Description

Technical Field

[0001] The present invention relates to the technical field of dirt-resistant amphiphobic film layers, and in particular to a super amphiphobic fiber component, a preparation method of the fiber component, and an electronic device. Background Art

[0002] With the rapid development of electronic products, people are increasingly demanding higher levels of resistance to dirt and stains on their surfaces. Existing electronic products, such as watches, use nylon fiber straps, which have been well-received by users due to their strength, toughness, durability, and breathability. However, their poor stain resistance, high moisture absorption, and poor stability have limited their development and reduced the user experience. Summary of the Invention

[0003] In view of this, the present invention provides a fiber product, the surface of which has a strong hydrophobic and oleophobic effect and is resistant to dirt and has strong wear resistance, which to a certain extent solves the problem of the surface of existing products being not resistant to dirt.

[0004] Some embodiments of the present application provide a fiber component. The present application is introduced below from multiple aspects, and the embodiments and beneficial effects of the following aspects can be referenced to each other.

[0005] In a first aspect, the present invention provides a fiber component comprising a fiber component body and at least one hydrophobic and oleophobic film layer formed on the surface of the fiber component body, wherein the hydrophobic and oleophobic film layer comprises at least one rough structure layer polymerized from low-carbon fluorine-containing chain hydrocarbons, and the rough structure layer forms nanoscale wrinkles.

[0006] The fiber parts of the embodiments of the present application can have a contact angle of greater than 150° with water and a contact angle of greater than 120° with dodecane, can completely repel daily stains, and have an oil repellency level of up to level 6 according to the AATCC 118-2013 standard. The dirt resistance can meet the national standard: GB / T 130159.1-2013 initial level 5 and level 5 after 50 washes. It also has an easy-to-clean effect on salad oil, acidic sweat, alkaline sweat, oleic acid, liquid paraffin, etc.

[0007] In a possible implementation of the first aspect, nanoscale wrinkles are formed on the fibers of the fiber component body in a convex-concave shape.

[0008] In a possible implementation of the first aspect above, the thickness of the hydrophobic and oleophobic thin film layer is 50 nm-4 um.

[0009] In a possible implementation of the first aspect above, the thickness of the rough structure layer is 50 nm-100 nm.

[0010] In a possible implementation of the first aspect above, the low-carbon fluorinated chain hydrocarbon is one or more of 1H,1H,2H,2H-perfluoroheptadecanetrimethyloxysilane, 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 1H,1H,2H,2H-perfluorooctyltrichlorosilane, triethoxy (1H,1H,2H,2H-nonafluorohexyl) silane, nonafluorobutanesulfonyl fluoride, potassium perfluorobutanesulfonate, and perfluorooctanol acrylate.

[0011] In a possible implementation of the first aspect, a contact angle between the hydrophobic and oleophobic film layer and water is greater than 150°.

[0012] In a possible implementation of the first aspect, a contact angle between the hydrophobic and oleophobic film layer and dodecane is greater than 110°.

[0013] In a possible implementation of the first aspect, the fiber component body is made of one or more of polyester fiber, polyamide fiber, polyvinyl alcohol fiber, polyacrylonitrile fiber, polypropylene fiber, and polyvinyl chloride fiber.

[0014] In a second aspect, the present invention provides a method for preparing a fiber product, comprising:

[0015] Providing a fiber part body;

[0016] The fiber body is placed in an organic solution of low-carbon fluorine-containing chain hydrocarbons for padding treatment;

[0017] After the padded fiber product body is dried, it is placed in a closed space for vapor deposition of low-carbon fluorine-containing chain hydrocarbons to obtain a fiber product with a thin film layer on the surface;

[0018] The fiber component body with the film layer is baked and then cooled to obtain the fiber component with the hydrophobic and oleophobic film layer.

[0019] The fiber parts produced by the method for preparing fiber parts according to the embodiments of the present application have a water contact angle greater than 150° and a dodecane contact angle greater than 120°. They completely repel everyday stains, achieving an oil repellency rating of up to level 6 according to AATCC 118-2013, and a stain resistance rating of up to level 5 initially according to the national standard GB / T 130159.1-2013, reaching level 5 after 50 washes. Furthermore, the fiber parts are easily removable from salad oil, acidic sweat, alkaline sweat, oleic acid, and liquid paraffin. Furthermore, the preparation method is simple and easily promoted.

[0020] In a possible implementation of the second aspect, the fiber part body is placed in an organic solution of a low-carbon fluorine-containing chain hydrocarbon for padding treatment, comprising:

[0021] The fiber body was ultrasonically washed with deionized water, anhydrous ethanol, and acetone respectively;

[0022] The cleaned fiber component body is placed in an organic solution of low-carbon fluorine-containing chain hydrocarbon for padding treatment.

[0023] In a possible implementation of the second aspect, the cleaned fiber body is placed in an organic solution of a low-carbon fluorinated hydrocarbon for padding, comprising:

[0024] The cleaned fiber component body is placed in an ethanol solution of a low-carbon fluorine-containing chain hydrocarbon in an acidic environment for padding treatment.

[0025] In a possible implementation of the second aspect, the ethanol solution of low-carbon fluorinated hydrocarbons under acidic environmental conditions is an ethanol solution of low-carbon fluorinated hydrocarbons containing Lewis acid.

[0026] In a possible implementation of the second aspect, in the ethanol solution of the Lewis acid-containing low-carbon fluorinated hydrocarbon, the weight ratio of ethanol, Lewis acid, and low-carbon fluorinated hydrocarbon is: (100-2000):(5-20):(10-50).

[0027] In a possible implementation of the second aspect, the ultrasonic washing time is 5-120 minutes.

[0028] In a possible implementation of the second aspect above, the low-carbon fluorinated chain hydrocarbon is one or more of 1H,1H,2H,2H-perfluoroheptadecanetrimethyloxysilane, 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 1H,1H,2H,2H-perfluorooctyltrichlorosilane, triethoxy (1H,1H,2H,2H-nonafluorohexyl) silane, nonafluorobutanesulfonyl fluoride, potassium perfluorobutanesulfonate, and perfluorooctanol acrylate.

[0029] In a possible implementation of the second aspect, the padding treatment lasts for 5-120 minutes.

[0030] In a possible implementation of the second aspect, in the enclosed space, the added volume of the low-carbon fluorine-containing chain hydrocarbon accounts for 0.4% of the volume of the enclosed space.

[0031] In a possible implementation of the second aspect, the evaporation temperature in the enclosed space is 60-120° C., and the evaporation time is 5 min-6 h.

[0032] In a possible implementation of the second aspect, the baking temperature of the baking process is 25° C.-130° C., and the baking time is 30 min-180 min.

[0033] In a possible implementation of the second aspect mentioned above, the fiber component body having a hydrophobic and oleophobic film layer is again placed in an organic solution containing low-carbon fluorinated hydrocarbons for immersion treatment. After the immersion treatment, it is again placed in a closed space for evaporation deposition of low-carbon fluorinated hydrocarbons and baked. The above process is repeated to obtain a fiber component having a hydrophobic and oleophobic film layer.

[0034] In a third aspect, the present application also provides an electronic device comprising a fiber woven strap, the fiber woven strap comprising a fiber component body and at least one hydrophobic and oleophobic film layer formed on the surface of the fiber component body, the hydrophobic and oleophobic film layer comprising at least one rough structure layer polymerized from low-carbon fluorine-containing chain hydrocarbons, the rough structure layer forming nano-scale wrinkles.

[0035] In a possible implementation of the third aspect, nanoscale wrinkles are formed on the fibers of the fiber component body in a convex-concave shape.

[0036] In a possible implementation of the third aspect, the hydrophobic and oleophobic thin film layer has a thickness of 50 nm to 4 um.

[0037] In a possible implementation of the third aspect, the thickness of the rough structure layer is 50 nm-100 nm.

[0038] In a possible implementation of the third aspect above, the low-carbon fluorinated chain hydrocarbon is one or more of 1H,1H,2H,2H-perfluoroheptadecantrimethyloxysilane, 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 1H,1H,2H,2H-perfluorooctyltrichlorosilane, triethoxy (1H,1H,2H,2H-nonafluorohexyl) silane, nonafluorobutanesulfonyl fluoride, potassium perfluorobutanesulfonate, and perfluorooctanol acrylate.

[0039] In a possible implementation of the third aspect, a contact angle between the hydrophobic and oleophobic film layer and water is greater than 150°.

[0040] In a possible implementation of the third aspect, a contact angle between the hydrophobic and oleophobic film layer and dodecane is greater than 110°.

[0041] In a possible implementation of the third aspect, the fiber component body is made of one or more of polyester fiber, polyamide fiber, polyvinyl alcohol fiber, polyacrylonitrile fiber, polypropylene fiber, and polyvinyl chloride fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic structural diagram of a watch according to an embodiment of the present application;

[0043] Figure 2This is a schematic cross-sectional view of a watch strap according to an embodiment of the present application;

[0044] Figure 3a This is a scanning electron microscope photograph of the microscopic morphology of a fiber woven watchband according to an embodiment of the present application;

[0045] Figure 3b This is a scanning electron microscope photograph of the microscopic morphology of a fiber woven watchband according to another embodiment of the present application;

[0046] Figure 4 This is a flow chart of a method for preparing a fiber product according to one embodiment of the present application;

[0047] Figure 5 This is a photograph of the contact angle between the nylon fiber woven watch strap and a static liquid droplet in Example 1 of one embodiment of the present application;

[0048] Figure 6 This is a photograph of the contact angle between the nylon fiber woven watchband and dodecane in Example 1 of one embodiment of the present application;

[0049] Figure 7 This is a wear resistance test diagram of the nylon fiber woven watch strap in Example 1 of one embodiment of the present application;

[0050] Figure 8 This is a graph showing the solid dirt resistance test results of a sample according to one embodiment of the present application;

[0051] Figure 9 This is an AFM schematic diagram of a fiber woven watchband before and after surface treatment according to an embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0053] At present, the fiber woven watchbands used in watches, especially nylon fiber woven watchbands, have strong hygroscopicity and poor stability due to the strong polarity of amide bonds, and are not resistant to dirt. For achieving a better dirt resistance effect, the construction of a double-repellent surface is crucial, and the chemical composition and rough structure of the material surface are key factors in constructing a hydrophobic and oleophobic surface structure. The current hydrophobic and oleophobic materials have great difficulty in constructing double-repellent surfaces, resulting in poor dirt resistance on the product surface, and the existing materials used have certain harmfulness to the human body. For this reason, the application proposes a super-hydrophobic fiber component to solve the existing technical problems. It should be noted that the super-double-repellent fiber component provided by the application can be a fiber component directly processed to obtain a hydrophobic and oleophobic film layer for the fiber itself, or a fiber woven object can be obtained after the fiber is woven, and then the fiber woven object is processed to obtain a fiber component with a hydrophobic and oleophobic film layer. It can also be a fiber with a hydrophobic and oleophobic film layer obtained after the fiber itself is processed, and then the fiber with the hydrophobic and oleophobic film layer is woven to obtain a fiber component. The fiber article can be clothing or a component of an electronic device. For example, if the electronic device is a watch, the fiber article can be a watch strap. Furthermore, in some embodiments, the electronic device can be a mobile phone, tablet computer, smart wearable product, such as a wristband, or other electronic product. The fiber article can be a mobile phone case that matches the mobile phone, a computer keyboard, a computer jacket, etc.

[0054] In the following embodiments, the electronic device is a watch and the fiber component is a watch strap.

[0055] refer to Figure 1 , Figure 1 The structure diagram of the watch according to the embodiment of the present application is shown in FIG. Figure 1 As shown, the watch 100 includes a watch head 110 and a watch band 120. The surface of the watch band 120 is provided with at least one hydrophobic and oleophobic film layer, which has strong stain resistance.

[0056] like Figure 2 As shown, Figure 2 Shows a schematic cross-sectional structure diagram of a watch strap. Figure 2 As shown, the watchband 120 includes a fiber woven body 121, wherein the fiber woven body refers to a woven fabric obtained by weaving fibers, and a hydrophobic and oleophobic film layer 122 is provided on the fiber woven body 121. The hydrophobic and oleophobic film layer 122 includes at least one rough structure layer 122a formed by polymerizing low-carbon fluorine-containing chain hydrocarbons, and the rough structure layer 112a is formed with nano-scale wrinkles.

[0057] like Figure 3a As shown, Figure 3aThe scanning electron microscope photo of the microstructure of the fiber woven strap is shown. As shown in Figure 3, the photo of the fiber surface with a scale of 10μm shows that there are concave and convex wrinkles on the surface of the fiber. After further magnification, Figure 3b The scanning electron microscope photo of the microstructure of the woven strap is shown in FIG. Figure 3b As shown in the photo of the fiber surface with a scale of 1 μm, the surface of the fiber woven strap is formed with many concave and convex wrinkles. The nano-scale wrinkles can make the surface of the strap have good hydrophobic, oleophobic and dirt-resistant properties.

[0058] In one embodiment of the present application, the hydrophobic and oleophobic film layer has a thickness of 50 nm to 4 μm. In some embodiments, the hydrophobic and oleophobic film layer has a thickness of 3 μm. This thickness of the hydrophobic and oleophobic film layer can better wrap around the surface of the fiber, effectively isolating the fiber from the outside world and forming a good dirt-resistant film layer.

[0059] In one embodiment of the present application, the thickness of the rough structure layer can be 50 nm to 100 nm. Furthermore, the thickness of the rough structure layer is 70 nm. Using a rough structure layer of this thickness facilitates the formation of a multi-layered rough structure layer, which is more conducive to the formation of nano-scale wrinkles, thereby obtaining a hydrophobic and oleophobic film layer with better performance.

[0060] In one embodiment of the present application, low-carbon fluorinated chain hydrocarbons include, but are not limited to, one or more of 1H,1H,2H,2H-perfluoroheptadecantrimethyloxysilane, 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 1H,1H,2H,2H-perfluorooctyltrichlorosilane, triethoxy(1H,1H,2H,2H-nonafluorohexyl)silane, nonafluorobutanesulfonyl fluoride, potassium perfluorobutanesulfonate, and perfluorooctanol acrylate. The use of these substances is more conducive to the formation of a hydrophobic and oleophobic film layer that is resistant to dirt and mechanical friction on the surface of the fiber.

[0061] In one embodiment of the present application, the material of the fiber component body can be one or more of polyester fiber, polyamide fiber, polyvinyl alcohol fiber, polyacrylonitrile fiber, polypropylene fiber, and polyvinyl chloride fiber.

[0062] In one embodiment of the present application, the contact angle between the hydrophobic and oleophobic film layer and water is greater than 150°, and the contact angle between the hydrophobic and oleophobic film layer and dodecane is greater than 110°.

[0063] According to the embodiment of the present application, the fiber component has a hydrophobic and oleophobic film layer, the contact angle of the hydrophobic and oleophobic film layer with water is greater than 150°, and the contact angle with dodecane is greater than 110°, which can reach 120°. It has good hydrophobic and oleophobic effects, strong mechanical wear resistance, and a simple preparation process.

[0064] In the above embodiments, the fiber parts are described as being applied to electronic devices. In some embodiments, the fiber parts may also be applied to other instruments, equipment or other fields, which is not limited here.

[0065] The preparation method of the super-amphiphobic fiber component of the present application is described below with reference to specific embodiments.

[0066] refer to Figure 4 , Figure 4 FIG. 1 is a flow chart showing a method for preparing a fiber product according to an embodiment of the present application. Figure 4 As shown, the preparation method includes S410-S440.

[0067] S410, providing a fiber component body.

[0068] In the embodiments of the present application, the fiber body may be made of, but is not limited to, one or more of polyester fiber, polyamide fiber, polyvinyl alcohol fiber, polyacrylonitrile fiber, polypropylene fiber, and polyvinyl chloride fiber. In some embodiments, the fiber body may also be made of other chemical fibers, natural fabrics, or packaging paper materials.

[0069] The fiber body in the present application can be unwoven fibers, or a certain amount of fibers, or a fiber braid obtained by weaving fibers, which is not limited here.

[0070] In one embodiment of the present application, before the fiber body is subjected to the membrane treatment, the fiber body needs to be cleaned to remove dirt from the surface of the fiber body. For example, ultrasonic cleaning with deionized water, anhydrous ethanol, or acetone can be used. The ultrasonic cleaning time is preferably 5-120 minutes. The fiber body is then dried naturally or at 40°C to obtain a cleaned fiber body.

[0071] S420, placing the fiber part body into an organic solution of low-carbon fluorine-containing chain hydrocarbon for padding treatment.

[0072] In one embodiment of the present application, the low-carbon fluorinated chain hydrocarbon is one or more of 1H,1H,2H,2H-perfluoroheptadecantrimethyloxysilane, 1H,1H,2H,2H-perfluorooctyltrimethoxysilane, 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 1H,1H,2H,2H-perfluorooctyltrichlorosilane, triethoxy (1H,1H,2H,2H-nonafluorohexyl) silane, nonafluorobutanesulfonyl fluoride, potassium perfluorobutanesulfonate, and perfluorooctanol acrylate.

[0073] In an embodiment of the present application, the fiber body after ultrasonic cleaning can be placed in an organic solution of a low-carbon, fluorinated hydrocarbon for padding. For example, the fiber body can be padded in the organic solution of a low-carbon, fluorinated hydrocarbon for 5-120 minutes to modify the surface of the fiber body, thereby further facilitating the formation of a hydrophobic and oleophobic film layer.

[0074] In one embodiment of the present application, the fiber component body is immersed in an acidic environment at room temperature, for example, in an ethanol solution of a low-carbon fluorinated hydrocarbon containing a Lewis acid. The Lewis acid can induce the low-carbon fluorinated hydrocarbon to polymerize in situ on the fiber surface of the fiber component body to form a rough structure of a certain thickness, thereby improving the hydrophobic and oleophobic properties.

[0075] In an embodiment of the present application, the Lewis acid may be one or more of ferric chloride, copper chloride, aluminum sulfate, and the like.

[0076] In one embodiment of the present application, the preparation of the ethanol solution of the low-carbon fluorinated chain hydrocarbon containing Lewis acid can be carried out according to the weight ratio of ethanol, Lewis acid, and low-carbon fluorinated chain hydrocarbon: (100-2000): (5-20): (10-50) ratio mixing, and magnetic stirring is uniform. The fiber parts prepared using this ratio are conducive to the in-situ polymerization of low-carbon fluorinated chain hydrocarbons on the fiber surface to obtain a rough structure with wrinkles of a certain thickness, and the hydrophobic and oleophobic film layer prepared by this ratio has good anti-fouling effect and strong wear resistance. The reaction mechanism is explained by taking Lewis acid-induced silane as an example. The reaction mechanism of Lewis acid-induced silane is as follows:

[0077]

[0078] Wherein, OEt in the formula is ethoxy, and Et here represents ethyl, i.e. C2H5O—;

[0079] Et2O is diethyl ether, i.e. CH3CH2—O—CH2CH3.

[0080] S430, after drying the impregnated fiber component body, placing it in a closed space for vapor deposition of low-carbon fluorine-containing chain hydrocarbons to obtain a fiber component with a thin film layer on the surface.

[0081] In an embodiment of the present application, the dried fiber parts are added with the same low-carbon fluorinated chain hydrocarbons as in S420 in a closed space filled with nitrogen for vapor deposition to obtain fiber parts with a thin film layer on the surface. In some embodiments, the temperature for vapor deposition is controlled in the range of 60-120°C, and the time for vapor deposition is in the range of 5min-3h. Furthermore, the volume of the low-carbon fluorinated chain hydrocarbons added to the chamber accounts for 0.4% of the volume of the chamber, so that a hydrophobic and oleophobic film layer of a certain thickness can be obtained. Using this volume ratio, a large number of experiments have shown that if the volume of the low-carbon fluorinated chain hydrocarbons added is too large or too small, it will lead to problems such as insufficient heating and low steam concentration, thereby affecting the contact angle between the hydrophobic and oleophobic film layer and water and dodecane, and affecting the hydrophobic and oleophobic effect.

[0082] This process builds upon S420 by further depositing multiple layers of roughened structure onto the fiber body, which already has a roughened structure layer of a certain thickness. This creates more nanoscale wrinkles. Furthermore, this layer-by-layer deposition can produce a hydrophobic and oleophobic film layer with a thickness of 3 μm or greater. This ensures that the hydrophobic and oleophobic film layer in this embodiment of the present application exhibits excellent properties such as resistance to dirt, ease of cleaning, and wear resistance.

[0083] S440, baking the fiber component body having the film layer, and cooling the fiber component body to obtain the hydrophobic and oleophobic film layer.

[0084] In the embodiments of the present application, the baking temperature of the baking treatment is 25° C.-130° C., and the baking time is 30 min-180 min.

[0085] In an embodiment of the present application, the fiber body having the hydrophobic and oleophobic film layer obtained in step S440 above can be further processed by repeating steps 2 to 4, or steps 2 to 3, or steps 3 to 4 in sequence, so that the hydrophobic and oleophobic film layer has a multi-layer rough structure. Figure 2 The structure shown in FIG. This structure has a hydrophobic and oleophobic film layer of a certain thickness, which has better dirt resistance, easy cleaning and wear resistance.

[0086] According to the preparation method of the fiber component of the embodiment of the present application, a low-carbon fluorinated chain hydrocarbon is induced on the surface of the fiber component body, and then evaporated and deposited to form a hydrophobic and oleophobic film layer on the surface of the fiber component body. The hydrophobic and oleophobic film layer has a rough structure layer with nano-scale wrinkles. The surface of the fiber component has a contact angle with water greater than 160° and a contact angle with dodecane greater than 120°, which can completely repel everyday stains, with an oil repellency level of 6 (AATCC118-2013) and a dirt resistance level of 5 initially and 5 after 50 washes. This method is simple to prepare, low-cost, and conducive to large-scale industrial production.

[0087] The following describes the preparation process of the watch strap according to the embodiment of the present application in conjunction with specific embodiments.

[0088] The wear resistance test of the embodiment of the present application adopts a BGD 528 multifunctional scrub resistance tester, and a nylon brush head with a weight of 500g is rubbed against the sample surface at a friction speed of 50 revolutions / min, which complies with the standard ASTM D2486.

[0089] Example 1

[0090] (1) Before modification, the nylon fiber woven watchband was soaked in deionized water, ethanol, and acetone in sequence for thorough cleaning for 120 min, and then dried at 40°C for later use;

[0091] (2) Add 10 ml of ethanol, 0.1 g of aluminum chloride, and 1 ml of 1H,1H,2H,2H-perfluorooctyltriethoxysilane to a weighing bottle, stir evenly, add the nylon fiber woven watchband treated in step (1), immerse for 15 minutes, and take out to dry at room temperature for 1 hour;

[0092] (3) The nylon fiber woven watchband treated in step (2) was placed in a sealed chamber filled with nitrogen, and 1 ml of 1H,1H,2H,2H-perfluorooctyltriethoxysilane accounting for 0.4% of the volume of the sealed chamber was added. The band was heated to 80°C, evaporated for 3 hours, and then taken out. After washing with ethanol, the band was dried in an oven at 100°C for 30 minutes to obtain a nylon fiber woven watchband S1 with a hydrophobic and oleophobic film layer.

[0093] like Figure 3a and Figure 3b As shown, Figure 3a This is the surface morphology of a nylon fiber woven watch strap with a scale of 10 μm. Figure 3b This is an enlarged view of the surface morphology of a nylon fiber woven watch strap with a scale of 1 μm. It can be clearly seen that there is a thin film layer with nano-scale wrinkles on the surface of the fiber.

[0094] like Figure 5 As shown, Figure 5 A photograph of the contact angle between the nylon fiber woven watchband in Example 1 and a static liquid droplet is shown. The contact angle between the surface of the nylon fiber woven watchband and water is 160°, indicating that the watchband is highly resistant to water and easy to clean.

[0095] like Figure 6 As shown, Figure 6 A photograph of the contact angle between the nylon fiber woven watchband in Example 1 and dodecane is shown. The contact angle between the surface of the nylon fiber woven watchband and dodecane is 120°, indicating that it has a strong oil-resistance effect.

[0096] like Figure 7 As shown, Figure 7 The wear test diagram of the nylon fiber woven watch strap in Example 1 is shown. Figure 7 As shown in the figure, △ represents the contact angle between nylon fiber woven strap and water, and ○ represents the contact angle between nylon fiber woven strap and dodecane. Figure 7 It can be seen that the contact angle of the nylon fiber woven strap with water before mechanical wear is 160°, and the contact angle with dodecane is 120°. After 15,000 cycles of friction, it can still maintain a high level, that is, the contact angle with water can reach more than 150°, and the contact angle with dodecane is 120° and can reach more than 110°.

[0097] Based on the above data, it is shown that the nylon fiber woven watch strap with a hydrophobic and oleophobic film layer in the embodiment of the present application has excellent dirt resistance and friction resistance.

[0098] Example 2

[0099] (1) Before modification, the nylon fiber woven watchband was immersed in deionized water, ethanol, and acetone for ultrasonic cleaning for 5 minutes, and then naturally dried for use;

[0100] (2) Add 20 ml of ethanol, 0.2 g of aluminum chloride, and 1.5 ml of 1H,1H,2H,2H-perfluorooctyltrichlorosilane to a weighing bottle, stir evenly, and then add the nylon fiber woven watchband from step (1), immerse for 30 minutes, remove, and dry at room temperature for 2 hours;

[0101] (3) The nylon fiber woven watchband treated in step (2) was placed in a sealed chamber filled with nitrogen, and 1 ml of 1H,1H,2H,2H-perfluorooctyltrichlorosilane accounting for 0.4% of the volume of the sealed chamber was added. The watchband was heated to 120°C for evaporation reaction for 6 hours. The watchband was taken out, washed with ethanol, and dried in an oven at 100°C for 1 hour to obtain a nylon fiber woven watchband S2 with a hydrophobic and oleophobic film layer.

[0102] The nylon fiber woven watchband S2 in this embodiment has a contact angle of 155° with water and 118° with dodecane, and maintains a high contact angle even after 15,000 friction cycles. Therefore, the nylon fiber woven watchband in this embodiment is resistant to dirt, easy to clean, and wear-resistant.

[0103] Example 3

[0104] (1) Before modification, the nylon fiber woven watchband was soaked in deionized water, ethanol, and acetone in sequence and ultrasonically cleaned for 5 minutes, and then dried for use;

[0105] (2) Add 20 ml of ethanol, 0.5 g of aluminum chloride, and 2 ml of triethoxy (1H, 1H, 2H, 2H-nonafluorohexyl) silane to a weighing bottle, stir evenly, add the nylon fiber woven watchband from step (1), immerse for 120 min, take out, and dry at room temperature for 3 h;

[0106] (3) The nylon fiber woven watchband treated in step (2) was placed in a sealed chamber filled with nitrogen, and 1 ml of triethoxy (1H, 1H, 2H, 2H-nonafluorohexyl) silane accounting for 0.4% of the volume of the sealed chamber was added. The watchband was heated at 80°C for evaporation reaction for 12 hours, taken out, washed with ethanol, and dried in an oven at 100°C for 2 hours to obtain a nylon fiber woven watchband S3 with a hydrophobic and oleophobic film layer.

[0107] The nylon fiber woven watchband S3 in this embodiment of the present application has a contact angle of 152° with water and 116° with dodecane, and maintains a high level of contact angle after 15,000 friction cycles. Therefore, the nylon fiber woven watchband in this embodiment is resistant to dirt, easy to clean, and wear-resistant.

[0108] The samples of the present invention were subjected to a solid dirt test using the standard GB / T 30159.1-2013. The test results are shown in Table 1. Figure 8 As shown, the antifouling performance of the three samples reached level 3-4, and they had good anti-solid dirt performance.

[0109] refer to Figure 9 , Figure 9 The AFM images of the fiber woven watchband before and after surface treatment are shown. The left side shows the AFM image of the watchband before treatment, and the right side shows the AFM image of the watchband after the hydrophobic and oleophobic film layer is formed. The before and after comparison shows that the surface of the watchband of the embodiment of the present application has formed a rough, granular and raised surface. Therefore, it has a good hydrophobic and oleophobic effect.

[0110] Comparative Example

[0111] (1) Before modification, the nylon fiber woven watchband was soaked in deionized water, ethanol, and acetone in sequence for thorough cleaning for 120 min, and then dried for use;

[0112] (2) Add 10 ml of ethanol and 1 ml of 1H,1H,2H,2H-perfluorooctyltriethoxysilane to a weighing bottle, stir evenly, add the nylon fiber woven watchband from step (1), immerse for 20 minutes, remove, and dry at room temperature for 1 hour;

[0113] (3) The nylon fiber woven watchband prepared in step (2) was placed in a flask, nitrogen was introduced and the flask was sealed, and the flask was heated at 80°C for evaporation reaction for 3 hours. After washing with ethanol, the flask was dried in an oven at 100°C for 30 minutes. After cooling, the amphiphobic performance was tested.

[0114] The samples in the comparative example were tested using the same method. The contact angles of the surface of the nylon fiber woven strap for water and dodecane were 72° and 0°, respectively, and water droplets would penetrate the surface of the material within 30 seconds.

[0115] Although the present application has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the application.

Claims

1. A super-amphiphobic fiber product, characterized in that: The invention comprises a fiber component body and a hydrophobic and oleophobic film layer formed on the surface of the fiber component body, wherein the hydrophobic and oleophobic film layer is obtained by in-situ polymerization of a low-carbon fluorinated hydrocarbon chain induced by Lewis acid on the fiber surface, wherein the Lewis acid is aluminum chloride, and the low-carbon fluorinated hydrocarbon chain is 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 1H,1H,2H,2H-perfluorooctyltrichlorosilane or triethoxy(1H,1H,2H,2H-nonafluorohexyl)silane; The hydrophobic and oleophobic film layer comprises at least one rough structure layer formed by polymerization of low-carbon fluorine-containing chain hydrocarbons, wherein the rough structure layer is formed with nano-scale wrinkles; The preparation method of the super-amphiphobic fiber product at least comprises: placing the fiber body into an organic solution of a low-carbon fluorine-containing chain hydrocarbon containing the Lewis acid for padding treatment; The fiber product body after padding is dried and then placed in a closed space for vapor deposition of low-carbon fluorine-containing chain hydrocarbons to obtain a fiber product with a thin film layer on the surface.

2. The fiber component according to claim 1, characterized in that The nanoscale wrinkles form convex and concave shapes on the fibers of the fiber component body.

3. The fiber component according to claim 1 or 2, characterized in that: The thickness of the hydrophobic and oleophobic film layer is 50nm-4um.

4. The fiber component according to claim 3, characterized in that: The thickness of the rough structure layer is 50nm-100nm.

5. The fiber product according to claim 1 or 2, characterized in that: The contact angle between the hydrophobic and oleophobic film layer and water is greater than 150°.

6. The fiber product according to claim 1 or 2, characterized in that: The contact angle between the hydrophobic and oleophobic film layer and dodecane is greater than 110°.

7. The fiber product according to claim 1 or 2, characterized in that: The fiber component body is made of one or more of polyester fiber, polyamide fiber, polyvinyl alcohol fiber, polyacrylonitrile fiber, polypropylene fiber, and polyvinyl chloride fiber.

8. A method for preparing a fiber product, characterized in that: include: Providing a fiber part body; The fiber component body is placed in an organic solution of a low-carbon fluorinated hydrocarbon containing a Lewis acid for padding treatment, wherein the Lewis acid is aluminum chloride, and the low-carbon fluorinated hydrocarbon is 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 1H,1H,2H,2H-perfluorooctyltrichlorosilane or triethoxy(1H,1H,2H,2H-nonafluorohexyl)silane; After drying the padded fiber product body, the fiber product body is placed in a closed space for vapor deposition of low-carbon fluorine-containing chain hydrocarbons to obtain a fiber product with a thin film layer on the surface; The fiber component body having the film layer is subjected to baking treatment, and after cooling, the fiber component having the hydrophobic and oleophobic film layer is obtained.

9. The method according to claim 8, characterized in that The step of placing the fiber body into an organic solution of a low-carbon fluorine-containing chain hydrocarbon containing a Lewis acid for padding treatment comprises: The fiber body is ultrasonically washed with deionized water, anhydrous ethanol, and acetone respectively; The cleaned fiber component body is placed in an organic solution of low-carbon fluorine-containing chain hydrocarbon for padding treatment.

10. The method according to claim 9, characterized in that The cleaned fiber body is placed in an organic solution of a low-carbon fluorine-containing chain hydrocarbon for padding treatment, comprising: The cleaned fiber component body is placed in an ethanol solution containing a low-carbon fluorine-containing chain hydrocarbon containing a Lewis acid for padding treatment.

11. The method according to claim 10, characterized in that In the ethanol solution of the low-carbon fluorinated hydrocarbon containing Lewis acid, the weight ratio of the ethanol, Lewis acid, and low-carbon fluorinated hydrocarbon is: (100-2000): (5-20): (10-50).

12. The method according to claim 9, characterized in that The ultrasonic washing time is 5-120 minutes.

13. The method according to any one of claims 8 to 12, characterized in that: The padding treatment time is 5-120 minutes.

14. The method according to any one of claims 8 to 12, characterized in that: In the enclosed space, the added volume of the low-carbon fluorine-containing chain hydrocarbon accounts for 0.4% of the volume of the enclosed space.

15. The method according to claim 14, characterized in that The temperature of the evaporation in the enclosed space is 60-120° C., and the time of the evaporation is 5 minutes to 3 hours.

16. The method according to any one of claims 8 to 12, characterized in that: The baking temperature of the baking treatment is 25° C.-130° C., and the baking time is 30-180 minutes.

17. An electronic device, characterized in that: It comprises a fiber woven watchband, and the fiber woven watchband is the super-amphiphobic fiber part according to any one of claims 1-7.

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