CN111335042A - Super-hydrophobic alginate fiber fabric and preparation method and application thereof - Google Patents
Super-hydrophobic alginate fiber fabric and preparation method and application thereof Download PDFInfo
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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
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
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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
- D06M2101/02—Natural fibres, other than mineral fibres
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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
- 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
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
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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
- 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
- D06M2200/30—Flame or heat resistance, fire retardancy properties
Abstract
The invention discloses a super-hydrophobic alginate fiber fabric and a preparation method and application thereof, wherein sol obtained after long-chain alkyl silane hydrolytic polycondensation is dip-coated on the alginate fiber fabric, low surface energy roughness is constructed at one time, so that simple and efficient super-hydrophobic surface treatment is realized, the surface treatment period can be shortened to within 30 minutes at the fastest speed, the water contact angle of the fabric surface is more than 150 degrees, the surface of the fabric fiber is covered with alkyl silane hydrolytic condensation products, and the fabric is not deformed after being soaked in water for more than 48 hours. The super-hydrophobic alginate fiber fabric material prepared by the invention has wide application prospect in the fields of functional textiles, ornaments, masks, medical materials and the like.
Description
Technical Field
The invention relates to a high polymer fiber material, in particular to a method for treating a functional alginate fiber fabric.
Background
In recent years, functional textiles which are mainly characterized by electromagnetic shielding, super-hydrophobic, ultraviolet resistance, antibacterial, mite removal, mildew prevention and wearable sensors have attracted wide attention. Functional textiles are usually produced by modification of conventional fibers or textiles as substrates. However, the traditional textile is highly flammable and has great potential safety hazard. The preparation of modern functional fibers and textiles with flame retardant properties is a research hotspot in the textile and clothing industry. Conventional methods for making flame retardant fibers or fabrics generally have three types: the flame retardant coating is adopted to treat the surface of the traditional fiber and the interior of the fiber, and flame retardant compound molecules are introduced into a polymer fiber framework through copolymerization. At present, flame retardants and flame retardant compounds are in a wide variety, and developed halogen-containing, phosphorus-containing and nitrogen-containing flame retardants greatly improve the flame retardant characteristics of fibers and textiles, but the use of these flame retardants brings about a number of problems, such as: environmental pollution, chemical toxicity to human body, high cost, etc.
Alginate fibers, which are represented by calcium alginate fibers, are natural self-flame-retardant fibers (Chinese patent CN107137834A), and are reported in the literature (Chinese Journal of P olymer Science, 2009, 27(6), 807-812), and the limited oxygen index of the calcium alginate fibers is as high as 34 percent and is far higher than that of the traditional fibers and fabrics, so that the alginate fibers are excellent candidate materials for flame-retardant functional textiles. The seaweed polysaccharide is prepared by using seaweed with huge marine content as a raw material, refining and extracting seaweed polysaccharide (sodium alginate) and then spinning by a wet method. Alginic acidThe alginate fiber has the characteristics of flame retardance, environmental protection, no toxicity, degradability, good biocompatibility, rich raw material sources and the like, is attracted by market consumers and researchers in recent years, and is widely applied to the fields of protective and decorative textiles, high-grade clothing and underwear fabrics, electromagnetic shielding fabrics, sports clothing, home textile products and the like+、K+Etc.) during the water solution, calcium ions in the alginate fibers and metal ions are subjected to ion exchange, the complex crosslinking structure in the fibers is broken down, and the alginate fibers lose the original appearance of the fibers and even are dissolved in the salt solution. These problems have greatly limited the use of alginate fibers and related textiles to a greater extent. Therefore, the seaweed fiber or fabric is required to be subjected to super-hydrophobic (the water contact angle is more than 150 ℃) or water-repellent modification aiming at the intrinsic defects.
Related art for carded alginate fibers and superhydrophobic surface modification found: 1. very few reports have been made on the superhydrophobic surface treatment of alginate fiber fabrics. The Chinese invention patent CN102251407B discloses a processing method of alginate fiber fabric, which comprises three major steps of a pretreatment process, a nano finishing process and a post-treatment process, about ten minor steps, the alginate fiber fabric produced according to the method has good water-repellent effect, but the processing process is complex, only the nano finishing process needs three times of dipping, padding, pre-baking and one-time baking, the time consumption is long, and the production cost is too high; 2. the current super-hydrophobic surface construction technology comprises the following steps: chemical etching, wet chemical deposition, electrostatic spinning, chemical vapor deposition, plasma etching, polymer grafting, etc., have four disadvantages as follows: (i) toxic fluorine-containing compounds such as fluoroalkyl silane and the like are used for reducing the surface energy, so that the cost is high, and potential hazards are caused to the health of a human body and the environment; (ii) many techniques have poor hydrophobic treatment effect, and the water contact angle is less than 150 degrees; (iii) technologies such as electrospinning, plasma etching, chemical vapor deposition and the like require special equipment and have limitations; (iv) the preparation difficulty and complexity are increased by the multi-step preparation process, and the preparation period is long. These disadvantages and problems have hindered the practical industrial production and application of superhydrophobic alginate fiber fabrics.
Reports relating to the superhydrophobic surface treatment of alginate materials (non-woven) are as follows: c hihan Meng et al (Journal of Sol-Gel Science and technology, 2018, 87, 704) prepared hydrophobic calcium alginate/acrylamide aerogel, the hydrophobic treatment of which was carried out by soaking a mixed solution of methyltrimethoxysilane and ethyl orthosilicate in ethanol and freeze-drying in two steps, the method had the disadvantages that the effect of the hydrophobic treatment was poor, the water contact angle was only 106 °, and freeze-drying required a special freeze-dryer, the period of the hydrophobic treatment was longer than 24 hours, and the time was long; jin Yang et al (Cellulose, 2018, 25(6), 3533-; the Chinese invention patent CN108129786A discloses a super-hydrophobic tear-resistant plant fiber paper and a preparation method thereof, the plant fiber paper contains a small amount of alginate fibers, the preparation process comprises six steps, and the process is very complicated; chinese invention patent CN103980530B discloses a preparation method of a seaweed cellulose aerogel oil absorption material, which comprises the steps of preparing seaweed cellulose extracted from enteromorpha into aerogel, soaking the aerogel in ethanol impregnation liquid of ferric chloride and phenyltriethoxysilane, taking out the aerogel, polymerizing the phenyltriethoxysilane by utilizing volatile pyrrole, and drying to obtain the hydrophobic seaweed cellulose aerogel.
In conclusion, reports about the super-hydrophobic surface treatment of the alginate fiber fabric have the problems of complex process and long preparation period. At present, reports and patents related to alginate super-hydrophobic treatment focus on the preparation aspect of alginate hydrophobic aerogel, and the hydrophobic preparation method has the problems of complex process, long production period, poor hydrophobic effect, need of special equipment, high cost and the like. The simple utilization of these processes directly to the superhydrophobic surface treatment of alginate fiber fabrics results in great limitations on their industrial production and practical application. Therefore, in order to expand the application of the self-flame-retardant alginate fiber fabric in the aspect of functional textiles, it is necessary to find a method which is easy for industrial production, green, environment-friendly, low in cost, efficient and rapid to prepare the super-hydrophobic alginate fiber fabric.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a super-hydrophobic alginate fiber fabric and a preparation method and application thereof. The invention dip-coats the sol obtained after long-chain alkyl silane hydrolytic polycondensation on the alginate fiber fabric to construct low surface energy roughness, thereby achieving the purpose of super-hydrophobic surface treatment.
In order to solve the problems in the prior art and achieve the purpose, the invention provides the following technical scheme:
a method for preparing a super-hydrophobic alginate fiber fabric comprises the following steps:
a. preparing an alkylsilane sol: preparing an alkyl silane ethanol solution with the concentration of 2-25 wt%, heating to 40-78 ℃, dropwise adding an acid solution with the concentration of 0.1-20 wt% into the solution, and uniformly stirring;
b. soaking the alginate fiber fabric into the solution at the temperature of 40-78 ℃ for 0-72 hours, taking out the fabric, washing with ethanol or water, and naturally drying at room temperature or drying by heating to obtain the super-hydrophobic alginate fiber fabric.
(1) In order to achieve the purpose, the alginate fiber fabric comprises alginate fibers and an alginate mixed fiber fabric, wherein the alginate fiber raw material is one or more of alginic acid, sodium alginate, potassium alginate, ammonium alginate, calcium alginate, barium alginate, zinc alginate, copper alginate, lead alginate, cadmium alginate, cobalt alginate, strontium alginate, nickel alginate, manganese alginate, iron alginate and aluminum alginate;
(2) the seaweed mixed fiber fabric is a mixed fabric of seaweed fibers and one or more of cotton, hemp, wool, terylene, acrylon, spandex, polypropylene, chinlon, modal and the like.
The content of seaweed fiber in the seaweed mixed fiber fabric is 5-95%.
(3) In order to achieve the above object, the weaving method of the alginate fiber fabric of the invention comprises: knitted, woven and nonwoven fabrics (nonwovens);
(4) the specific implementation steps for preparing the super-hydrophobic alginate fiber fabric are as follows:
a. preparing an alkylsilane sol: preparing an alkyl silane ethanol solution with the concentration of 2-25 wt%, heating to 40-78 ℃, dropwise adding an acid solution with the concentration of 0.1-20 wt% into the solution, and uniformly stirring;
b. soaking the alginate fiber fabric into the solution at the temperature of 40-78 ℃ for 0-72 hours, taking out the fabric, washing with ethanol or water, and naturally drying at room temperature or drying by heating to obtain the super-hydrophobic alginate fiber fabric.
Wherein the heating and drying are carried out in a forced air heating drying oven or an oven.
(5) In order to achieve the above object, the alkylsilane in the embodiment of the invention is any one or more of n-octyltrimethoxysilane, n-octyltriethoxysilane, n-decyltrimethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, n-hexyltrimethoxysilane, n-hexyltriethoxysilane, hexadecyltrimethoxysilane, hexadecyltriethoxysilane, octadecyl trimethoxysilane, octadecyl triethoxysilane, isobutyl triethoxysilane, and isooctyl triethoxysilane;
(6) in order to achieve the above object, the acid in the embodiment of the present invention is any one or more of sulfuric acid, nitric acid, hydrochloric acid, acetic acid, formic acid, oxalic acid, phosphoric acid, hypochlorous acid, perchloric acid, hydrobromic acid, hydroiodic acid, sulfurous acid, nitrous acid;
(7) the super-hydrophobic alginate fiber fabric prepared by the invention is characterized by comprising the following components in parts by weight: the water contact angle of the fabric surface is more than 150 degrees, the fabric fiber surface is covered with an alkyl silane hydrolysis condensation product, and the fabric is not deformed after being soaked in water for more than 48 hours;
(8) the invention provides application of the super-hydrophobic alginate fiber fabric material in the fields of functional textiles, ornaments, masks, medical materials and the like.
The preparation method of the super-hydrophobic alginate fiber fabric is innovative from the preparation principle, the principle is that the low surface energy roughness is constructed on the surface of the fabric fiber by utilizing the self hydrolysis condensation product of the alkyl silane, the roughness construction and the step-by-step implementation strategy of low surface energy modification of the traditional method are integrated into a synchronous implementation strategy, and the preparation and dip-coating and drying of the alkyl silane sol can be completed in the implementation process. Compared with the prior art, the invention has the following advantages: the method has the advantages that the process is greatly simplified, the implementation steps are simplified, the processing time is short, the processing can be finished in less than 30 minutes at the fastest speed, special instruments and equipment are not needed, a special environment is not needed, and the method is favorable for low-cost, rapid and efficient production and processing; secondly, fluorine-free alkyl silane is used, the used solvents are ethanol and water, toxic or environmentally-friendly chemical reagents are not used, and the preparation process is green and environment-friendly; thirdly, the hydrophobic effect is good, the water contact angle exceeds 150 degrees and even reaches 160 degrees, and the super-hydrophobic effect can be adjusted and controlled according to the concentration of the alkyl silane, the hydrolysis condensation degree and the soaking time; fourthly, the method is very suitable for large-scale, large-batch and large-area preparation. The implementation of the invention provides a low-cost process route capable of being practically applied for effectively improving the intrinsic defect that the alginate fiber fabric is easy to absorb water and deform and expanding the application of the alginate fiber fabric in the aspect of flame-retardant functional textiles.
Drawings
Fig. 1 is a photograph (a) of a contact angle test of a calcium alginate fiber fabric (untreated) in example 1 of the present invention, a photograph (b) of a contact angle test of a super-hydrophobic calcium alginate fiber fabric, a contact angle test of water drops: 5 mu L of the solution; comparing the photos (c) before and after the untreated calcium alginate fiber fabric is soaked in water, wherein the untreated sample has obvious gelation deformation; and (d) comparing the photos before and after soaking the calcium alginate fiber fabric in water after the super-hydrophobic treatment, wherein the shape and appearance of the fabric sample are kept unchanged after soaking in water, the super-hydrophobic characteristic is still kept, and water drops (Congo red dyeing) keep a spherical shape on the surface of the fabric.
Fig. 2 is a photograph (a) of a contact angle test of a calcium alginate/polyester fiber fabric (untreated) in example 2 of the present invention, a photograph (b) of a contact angle test of a super-hydrophobic calcium alginate/polyester fiber fabric, a contact angle test water drop: 5 mu L of the solution; comparing the photos (c) before and after the untreated calcium alginate/polyester fiber fabric is soaked in water, wherein the untreated sample has obvious gelation deformation; and (d) comparing the photos before and after soaking the calcium alginate/polyester fiber fabric subjected to the super-hydrophobic treatment in water, wherein the shape and appearance of the fabric sample are kept unchanged after soaking in water, the super-hydrophobic characteristic is still kept, and water drops (dyed by congo red) keep a spherical shape on the surface of the fabric.
Fig. 3 is a photograph (a) of a contact angle test of alginic acid nonwoven fabric (untreated) in example 3 of the present invention, a photograph (b) of a contact angle test of superhydrophobic alginic acid nonwoven fabric, water drops of the contact angle test: 5 mu L of the solution; comparing the photos (c) before and after soaking the untreated alginic acid non-woven fabric in water, wherein the untreated sample has obvious gelation deformation; and (d) comparing the photograph before and after soaking the super-hydrophobic treated alginic acid non-woven fabric in water, wherein the shape and appearance of the fabric sample are kept unchanged after soaking in water, the super-hydrophobic characteristic is still kept, and water drops (dyed by Congo red) keep a spherical shape on the surface of the fabric.
Fig. 4 is a photograph (a) of a contact angle test of a calcium alginate/aramid fiber fabric (untreated) in example 4 of the present invention, a photograph (b) of a contact angle test of a super-hydrophobic calcium alginate/aramid fiber fabric, a contact angle test water drop: 5 mu L of the solution; comparing the photos (c) before and after the untreated calcium alginate/aramid fiber fabric is soaked in water, wherein the untreated sample has a gelation expansion phenomenon; and (d) comparing the photos before and after soaking the calcium alginate/aramid fiber fabric subjected to the super-hydrophobic treatment in water, wherein the shape and appearance of the fabric sample are kept unchanged after soaking in water, the super-hydrophobic characteristic is still kept, and water drops (dyed by Congo red) keep a spherical shape on the surface of the fabric.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-4 and the detailed description thereof.
Example 1:
preparing 50g of ethanol solution of 7 wt% of dodecyl triethoxy silane, heating and preserving heat to 75 ℃, dropwise adding 15mL of 1 wt% sulfuric acid aqueous solution, uniformly stirring, soaking a knitted calcium alginate fiber fabric (2cm × 4cm) in the solution, preserving heat at 75 ℃ for 0.5 hour, taking out and washing with ethanol, drying in a forced air heating drying oven (80 ℃) for 1 hour to prepare the super-hydrophobic calcium alginate fiber fabric, wherein the preparation period is about 2 hours, the prepared fabric contact angle is 153.8 degrees, no deformation occurs when the fabric is soaked in water for 48 hours, and the super-hydrophobic property is still maintained, and a contact angle test photo of the untreated and super-hydrophobic treated calcium alginate fiber fabric and a comparison photo before and after soaking are shown in a picture 1.
Example 2:
preparing 10g of ethanol solution of hexadecyl trimethoxy silane with the concentration of 3 wt%, heating and preserving the temperature to 60 ℃, dropwise adding 3mL of hydrochloric acid aqueous solution with the concentration of 0.36 wt%, uniformly stirring, soaking a calcium alginate/polyester blended knitted fabric (calcium alginate/polyester: 80/20, 2cm × 2cm) in the solution, preserving the temperature for 1 hour at 60 ℃, taking out and washing the fabric with ethanol, drying the fabric in a forced-air heating drying box (70 ℃) for 3 hours to prepare the super-hydrophobic calcium alginate/polyester fiber fabric, wherein the preparation period is about 4.5 hours, the contact angle of the prepared fabric is 155.3 degrees, the super-hydrophobic property is not deformed after the fabric is soaked in water for 72 hours, and the contact angle test picture of the calcium alginate/polyester fiber fabric after untreated and super-hydrophobic treatment and the contrast picture before and after soaking are shown in figure 2.
Example 3:
preparing 20g of ethanol solution of n-octyltriethoxysilane with the concentration of 15 wt%, heating and preserving heat to 50 ℃, dropwise adding 6mL of phosphoric acid aqueous solution with the concentration of 5 wt%, uniformly stirring, soaking alginic acid non-woven fabric (1cm × 3cm) in the solution, preserving heat at 50 ℃ for 2 hours, taking out and washing with ethanol, naturally drying at room temperature (25 ℃) for 12 hours in the air to prepare the super-hydrophobic alginic acid non-woven fabric, wherein the preparation period is about 14.5 hours, the contact angle of the prepared fabric is 151.6 degrees, the prepared fabric is not deformed after being soaked in water for 48 hours, and the super-hydrophobic characteristic is still maintained, and a test picture of the contact angle of the non-woven alginate fabric after non-treatment and super-hydrophobic treatment and a comparison picture before and after soaking are shown in a picture 3.
Example 4:
preparing 40g of ethanol solution of octadecyl trimethoxy silane with the concentration of 4 wt%, heating and preserving heat to 70 ℃, dropwise adding 70mL of acetic acid aqueous solution with the concentration of 10 wt%, uniformly stirring, soaking a calcium alginate/aramid fiber blended woven fabric (calcium alginate/aramid fiber: 40/60, 2cm × 1.2.2 cm) in the solution for preserving heat at 70 ℃ for 2 minutes, taking out and washing with water, drying in a forced air heating drying box (90 ℃) for 10 minutes to prepare the super-hydrophobic calcium alginate/aramid fiber fabric, wherein the preparation period is about 28 minutes, the contact angle of the prepared fabric is 160.3 degrees, the super-hydrophobic calcium alginate/aramid fiber fabric does not deform after being soaked in water for 96 hours, and the super-hydrophobic characteristic is still maintained, and the contact angle test picture of the calcium alginate/aramid fiber fabric after untreated and super-hydrophobic treatment and the contrast picture before and after soaking are shown in figure 4.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for preparing a super-hydrophobic alginate fiber fabric is characterized by comprising the following steps:
a. preparing an alkylsilane sol: preparing an alkyl silane ethanol solution with the concentration of 2-25 wt%, heating to 40-78 ℃, dropwise adding an acid solution with the concentration of 0.1-20 wt% into the solution, and uniformly stirring;
b. soaking the alginate fiber fabric into the solution at the temperature of 40-78 ℃ for 0-72 hours, taking out the fabric, washing with ethanol or water, and naturally drying at room temperature or drying by heating to obtain the super-hydrophobic alginate fiber fabric.
2. The method of claim 1, wherein said alginate fiber fabric comprises a alginate fiber and alginate mixed fiber fabric.
3. The method of claim 2, wherein the alginate fiber material is one or more of alginic acid, sodium alginate, potassium alginate, ammonium alginate, calcium alginate, barium alginate, zinc alginate, copper alginate, lead alginate, cadmium alginate, cobalt alginate, strontium alginate, nickel alginate, manganese alginate, iron alginate and aluminum alginate.
4. The method as claimed in claim 2, wherein the seaweed mixed fiber fabric is a mixed fabric of seaweed fibers and one or more of cotton, hemp, wool, terylene, acrylon, spandex, polypropylene, chinlon, modal and the like; the content of the seaweed fiber in the seaweed mixed fiber fabric is 5-95%.
5. The method as claimed in claim 1, wherein the weaving method of the alginate fiber fabric comprises: knits, woven and non-wovens (nonwovens).
6. The method of claim 1, wherein the alkylsilane is any one or more of n-octyltrimethoxysilane, n-octyltriethoxysilane, n-decyltrimethoxysilane, dodecyltrimethoxysilane, dodecyltriethoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, n-hexyltrimethoxysilane, n-hexyltriethoxysilane, hexadecyltrimethoxysilane, hexadecyltriethoxysilane, octadecyl trimethoxysilane, octadecyl triethoxysilane, isobutyl triethoxysilane, and isooctyl triethoxysilane.
7. The method of claim 1, wherein the acid is any one or more of sulfuric acid, nitric acid, hydrochloric acid, acetic acid, formic acid, oxalic acid, phosphoric acid, hypochlorous acid, perchloric acid, hydrobromic acid, hydroiodic acid, sulfurous acid, nitrous acid.
8. A superhydrophobic alginate fiber fabric prepared by the method of any one of claims 1 to 7, wherein the water contact angle of the surface of the fabric is greater than 150 °.
9. The superhydrophobic alginate fiber fabric of claim 8, wherein the surface of the fabric fibers is covered with the hydrolyzed condensation product of alkylsilane, and the fabric is not deformed when soaked in water for more than 48 hours.
10. Use of the superhydrophobic alginate fiber fabric of claim 8 or 9, wherein the superhydrophobic alginate fiber fabric is used in the fields of functional textiles, ornaments, masks, medical materials, and the like.
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| CN111962304A (en) * | 2020-08-19 | 2020-11-20 | 浙江中谷塑业有限公司 | Preparation process and application of water-repellent antistatic non-woven fabric |
| CN112252036A (en) * | 2020-10-20 | 2021-01-22 | 江南大学 | Fluorine-free self-repairing-super-hydrophobic finishing agent and preparation method and application thereof |
| WO2022223934A1 (en) * | 2021-04-22 | 2022-10-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Method for coating textile materials |
| CN116211000A (en) * | 2022-12-30 | 2023-06-06 | 青岛周氏塑料包装有限公司 | Fully-degradable mask and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111962304A (en) * | 2020-08-19 | 2020-11-20 | 浙江中谷塑业有限公司 | Preparation process and application of water-repellent antistatic non-woven fabric |
| CN112252036A (en) * | 2020-10-20 | 2021-01-22 | 江南大学 | Fluorine-free self-repairing-super-hydrophobic finishing agent and preparation method and application thereof |
| CN112252036B (en) * | 2020-10-20 | 2022-02-15 | 江南大学 | Fluorine-free self-repairing-super-hydrophobic finishing agent and preparation method and application thereof |
| WO2022223934A1 (en) * | 2021-04-22 | 2022-10-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Method for coating textile materials |
| FR3122190A1 (en) * | 2021-04-22 | 2022-10-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Process for coating textile materials |
| CN116211000A (en) * | 2022-12-30 | 2023-06-06 | 青岛周氏塑料包装有限公司 | Fully-degradable mask and preparation method thereof |
| CN116211000B (en) * | 2022-12-30 | 2023-10-03 | 青岛周氏塑料包装有限公司 | Fully-degradable mask and preparation method thereof |
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