CN116516684B - Waterproof and anti-fouling microfiber fabric and processing technology thereof - Google Patents

Waterproof and anti-fouling microfiber fabric and processing technology thereof Download PDF

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CN116516684B
CN116516684B CN202310494747.6A CN202310494747A CN116516684B CN 116516684 B CN116516684 B CN 116516684B CN 202310494747 A CN202310494747 A CN 202310494747A CN 116516684 B CN116516684 B CN 116516684B
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island
fouling
resin liquid
super
waterproof
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CN116516684A (en
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徐博华
姚佳灵
邵慧
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Huatex International Hangzhou Co ltd
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Huatex International Hangzhou Co ltd
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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
    • D04H1/43825—Composite fibres
    • D04H1/4383—Composite fibres sea-island
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration
    • 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
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/576—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them containing fluorine
    • 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
    • D06M2200/01—Stain or soil resistance
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses a waterproof and anti-fouling microfiber fabric, which comprises sea-island short fibers and anti-fouling resin liquid, wherein the sea-island short fibers and the anti-fouling resin liquid are prepared, the sea-island short fibers are firstly prepared into non-woven fabrics, and then the non-woven fabrics are immersed into the anti-fouling resin liquid, wherein the anti-fouling resin liquid can endow the fabric with excellent waterproof and anti-fouling performances, the anti-fouling resin liquid is modified polyurethane, the hydrophobicity of the polyurethane is obviously improved, the anti-fouling performance is improved by introducing a large amount of fluorine-containing groups into the prepared polyurethane, and after the non-woven fabrics are immersed into the prepared resin liquid, siloxane in an intermediate 2 structure introduced into the resin liquid can be hydrolyzed, so that the polyurethane is firmly adhered to the non-woven fabrics.

Description

Waterproof and anti-fouling microfiber fabric and processing technology thereof
Technical Field
The invention belongs to the technical field, and particularly relates to a waterproof and anti-fouling microfiber fabric and a processing technology thereof.
Background
Microfiber is short for superfine fiber PU synthetic leather, sea-island superfine fiber is one kind of superfine fiber, and is divided into two main kinds of sea-island filament and sea-island staple (including fixed island type and indefinite island type). Sea-island filaments are generally woven and knitted to produce suede fabrics for making clothes and apparel; sea-island staple fibers are commonly needled to produce thick imitation leather fabrics by nonwoven, and are mainly used for making shoes, sofas, automotive interiors, clothes and the like. All microfiber fabrics generally take high imitation leather as the highest purpose, the island-type microfiber fabrics adopt alkali deweighting fiber opening, and toluene fiber opening is safer and more environment-friendly compared with the island-type microfiber fabrics, but the technology needs to be used for realizing leather feel and needs to be impregnated with polyvinyl alcohol PVA and oily polyurethane (containing dimethylformamide DMF), and organic solvents such as DMF and the like are needed to be added, so that the environmental impact is large in the production process, the treatment cost is increased due to the residue treatment of DMF, and the microfiber fabrics prepared through the prior art do not have excellent antifouling performance.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention aims to provide a waterproof and anti-fouling microfiber fabric and a processing technology thereof.
The aim of the invention can be achieved by the following technical scheme:
the waterproof and anti-fouling microfiber fabric comprises sea-island short fibers and anti-fouling resin liquid, wherein the anti-fouling resin liquid comprises the following steps:
step S1, adding trimethoxy silane and acetic acid into a four-necked flask under the argon atmosphere, uniformly stirring and adding tetrahydrofuran, controlling the system temperature to be 0-6 ℃, uniformly stirring for 12 hours, slowly adding mercaptopropyl methyl dimethoxy silane, uniformly stirring and reacting for 4 hours, and obtaining an intermediate 1;
in the step S1, trimethoxy silane and mercaptopropyl methyl dimethoxy silane react to generate an intermediate 1, and in order to prevent self hydrolytic condensation and self crosslinking of the trimethoxy silane, the temperature of the system is controlled to be 0-6 ℃, and the reaction process is as follows:
s2, adding the intermediate 1 and perfluoroalkyl ethyl acrylate into a reaction bottle, stirring at a constant speed, adding benzoin dimethyl ether, and reacting for 30min under the irradiation of an ultraviolet lamp to obtain an intermediate 2;
in the step S2, benzoin dimethyl ether is used as a photoinitiator, and under ultraviolet light, sulfhydryl groups on the intermediate 1 and carbon-carbon double bonds on perfluoroalkyl ethyl acrylate are subjected to click chemistry reaction to prepare an intermediate 2, wherein the reaction process is as follows:
and S3, adding isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate into a reaction flask under the argon atmosphere, adding butanone, heating and refluxing for reaction for 3 hours, cooling to 40 ℃ after the reaction is finished, adding an intermediate 2 and triethylamine, and continuing to react for 1 hour to obtain the anti-fouling resin liquid.
In the step S3, dibutyl tin dilaurate is used as a catalyst, butanone is used as a solvent, isophorone diisocyanate and polytetramethylene glycol react to generate a prepolymer, the intermediate 2 is added, mercapto groups on the intermediate 2 react with isocyanate groups on the prepolymer, a large number of fluorine-containing groups are introduced into the prepared polyurethane, the hydrophobicity of the polyurethane is remarkably improved, the anti-fouling performance is improved, after the non-woven fabric is immersed into the prepared resin liquid, siloxane in the structure of the intermediate 2 introduced into the resin liquid can be hydrolyzed, so that the polyurethane is firmly adhered to the non-woven fabric, and the bonding strength is improved while the waterproof and excellent anti-fouling performance are improved.
Further, the sea-island staple fiber is a 37-island fixed-island staple fiber or a 64-island fixed-island staple fiber.
Further, the weight ratio of the sea-island short fiber to the anti-fouling resin liquid is 5-8:2-5.
Further, in the step S1, the weight ratio of trimethoxysilane to acetic acid to tetrahydrofuran is controlled to be 5-10:0.05-0.08:5-10, and the molar ratio of trimethoxysilane to mercaptopropyl methyl dimethoxy silane is controlled to be 1:3.
Further, in the step S2, the mol ratio of the intermediate 1 to the perfluoroalkyl ethyl acrylate is controlled to be 3:1, and the dosage of benzoin dimethyl ether is 2-3% of the weight of the intermediate 1 and the perfluoroalkyl ethyl acrylate.
Further, in the step S3, the dosage ratio of isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate is controlled to be 0.05-0.08 mol:0.024-0.026 mol:1 mL, the dosage of the intermediate 2 is 0.3-0.5% of the weight of isophorone diisocyanate, and the dosage of triethylamine is 2.5-3% of the weight of the intermediate 2.
A processing technology of waterproof and anti-fouling microfiber fabric comprises the following steps:
firstly, opening, carding, lapping, pre-needling and needling the island short fibers to obtain island super-fiber non-woven fabrics;
and secondly, placing the prepared island super-fiber non-woven fabric into an ultrasonic instrument, wherein a softener is filled in the ultrasonic instrument, after ultrasonic softening for 10min, fishing the island super-fiber and draining the island super-fiber until no liquid is formed, dripping, then soaking the island super-fiber non-woven fabric into the anti-fouling resin liquid, carrying out ultrasonic treatment for 30-45min at room temperature, fishing and draining the island super-fiber non-woven fabric until no resin liquid is dripped, transferring to a drying box, drying, dry grinding and rolling to obtain the waterproof anti-fouling super-fiber fabric.
The invention has the beneficial effects that:
the waterproof and anti-fouling microfiber fabric is prepared from island staple fibers and anti-fouling resin liquid, wherein the island staple fibers are firstly prepared into non-woven fabrics, and then the non-woven fabrics are immersed into the anti-fouling resin liquid, wherein the anti-fouling resin liquid can endow the fabric with excellent waterproof and anti-fouling performances, the anti-fouling resin liquid is modified polyurethane, in the preparation process, trimethoxysilane and mercaptopropyl methyl dimethoxy silane react to generate an intermediate 1, benzoin dimethyl ether is used as a photoinitiator, under ultraviolet light, mercapto on the intermediate 1 and carbon-carbon double bonds on perfluoroalkyl ethyl acrylate react to generate a prepolymer through click chemistry, the intermediate 2 is added, mercapto on the intermediate 2 reacts with isocyanate groups on the prepolymer, a large amount of fluorine-containing groups are introduced into the prepared polyurethane, the hydrophobicity of the polyurethane is remarkably improved, and after the non-woven fabrics are immersed into the prepared resin liquid, siloxane in the structure of the intermediate 2 can be hydrolyzed, so that the polyurethane is firmly adhered to the non-woven fabrics.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The anti-fouling resin liquid comprises the following steps:
step S1, adding trimethoxy silane and acetic acid into a four-neck flask under argon atmosphere, stirring at a constant speed, adding tetrahydrofuran, controlling the system temperature to be 0 ℃, stirring at a constant speed for 12 hours, slowly adding mercaptopropyl methyl dimethoxy silane, stirring at a constant speed, reacting for 4 hours, and preparing an intermediate 1, wherein the weight ratio of trimethoxy silane to acetic acid to tetrahydrofuran is controlled to be 5:0.05:5, and the molar ratio of trimethoxy silane to mercaptopropyl methyl dimethoxy silane is controlled to be 1:3;
s2, adding the intermediate 1 and the perfluoroalkyl ethyl acrylate into a reaction bottle, stirring at a constant speed, adding benzoin dimethyl ether, irradiating with an ultraviolet lamp, and reacting for 30min to obtain an intermediate 2, wherein the molar ratio of the intermediate 1 to the perfluoroalkyl ethyl acrylate is controlled to be 3:1, and the dosage of the benzoin dimethyl ether is 2% of the weight of the intermediate 1 and the perfluoroalkyl ethyl acrylate;
s3, adding isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate into a reaction flask under the argon atmosphere, adding butanone, heating and refluxing for reaction for 3 hours, cooling to 40 ℃ after the reaction is finished, adding an intermediate 2 and triethylamine, and continuing the reaction for 1 hour to prepare an anti-fouling resin liquid, wherein the dosage ratio of isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate is controlled to be 0.05 mol:0.024 mol:1 mL, the dosage of the intermediate 2 is 0.3 of the weight of isophorone diisocyanate, and the dosage of the triethylamine is 2.5% of the weight of the intermediate 2.
Example 2
The anti-fouling resin liquid comprises the following steps:
step S1, adding trimethoxy silane and acetic acid into a four-neck flask under argon atmosphere, stirring at a constant speed, adding tetrahydrofuran, controlling the system temperature to be 3 ℃, stirring at a constant speed for 12 hours, slowly adding mercaptopropyl methyl dimethoxy silane, stirring at a constant speed, reacting for 4 hours, and preparing an intermediate 1, wherein the weight ratio of trimethoxy silane to acetic acid to tetrahydrofuran is 8:0.06:8, and the molar ratio of trimethoxy silane to mercaptopropyl methyl dimethoxy silane is 1:3;
s2, adding the intermediate 1 and perfluoroalkyl ethyl acrylate into a reaction bottle, stirring at a constant speed, adding benzoin dimethyl ether, irradiating with an ultraviolet lamp, and reacting for 30min to obtain an intermediate 2, wherein the molar ratio of the intermediate 1 to the perfluoroalkyl ethyl acrylate is controlled to be 3:1, and the dosage of the benzoin dimethyl ether is 2.5% of the weight of the intermediate 1 and the perfluoroalkyl ethyl acrylate;
s3, adding isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate into a reaction flask under the argon atmosphere, adding butanone, heating and refluxing for reaction for 3 hours, cooling to 40 ℃ after the reaction is finished, adding an intermediate 2 and triethylamine, and continuing the reaction for 1 hour to prepare an anti-fouling resin liquid, wherein the dosage ratio of isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate is controlled to be 0.06 mol:0.025 mol:1 mL, the dosage of the intermediate 2 is 0.4 weight percent of isophorone diisocyanate, and the dosage of the triethylamine is 2.8 weight percent of the intermediate 2.
Example 3
The anti-fouling resin liquid comprises the following steps:
step S1, adding trimethoxy silane and acetic acid into a four-neck flask under argon atmosphere, stirring at a constant speed, adding tetrahydrofuran, controlling the system temperature to be 6 ℃, stirring at a constant speed for 12 hours, slowly adding mercaptopropyl methyl dimethoxy silane, stirring at a constant speed, reacting for 4 hours, and preparing an intermediate 1, wherein the weight ratio of trimethoxy silane to acetic acid to tetrahydrofuran is controlled to be 10:0.08:10, and the molar ratio of trimethoxy silane to mercaptopropyl methyl dimethoxy silane is controlled to be 1:3;
s2, adding the intermediate 1 and the perfluoroalkyl ethyl acrylate into a reaction bottle, stirring at a constant speed, adding benzoin dimethyl ether, irradiating with an ultraviolet lamp, and reacting for 30min to obtain an intermediate 2, wherein the molar ratio of the intermediate 1 to the perfluoroalkyl ethyl acrylate is controlled to be 3:1, and the dosage of the benzoin dimethyl ether is 3% of the weight of the intermediate 1 and the perfluoroalkyl ethyl acrylate;
s3, adding isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate into a reaction flask under the argon atmosphere, adding butanone, heating and refluxing for reaction for 3 hours, cooling to 40 ℃ after the reaction is finished, adding an intermediate 2 and triethylamine, and continuing the reaction for 1 hour to prepare an anti-fouling resin liquid, wherein the dosage ratio of isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate is controlled to be 0.08 mol:0.026 mol:1 mL, the dosage of the intermediate 2 is 0.5 weight percent of isophorone diisocyanate, and the dosage of the triethylamine is 3 weight percent of the intermediate 2.
Example 4
The waterproof and anti-fouling microfiber fabric comprises sea-island staple fibers and anti-fouling resin liquid prepared in the embodiment 1, wherein the sea-island staple fibers are 37-island fixed sea-island staple fibers or 64-island fixed sea-island staple fibers, and the weight ratio of the sea-island staple fibers to the anti-fouling resin liquid is 5:5;
the processing technology of the waterproof and anti-fouling microfiber fabric comprises the following steps:
firstly, opening, carding, lapping, pre-needling and needling the island short fibers to obtain island super-fiber non-woven fabrics;
and secondly, placing the prepared island super-fiber non-woven fabric into an ultrasonic instrument, wherein a softener is filled in the ultrasonic instrument, fishing the island super-fiber and draining the island super-fiber until no liquid is formed, dripping the island super-fiber and draining the island super-fiber into strands after ultrasonic softening for 10min, then soaking the island super-fiber non-woven fabric into the anti-fouling resin liquid, carrying out ultrasonic treatment for 30min at room temperature, fishing and draining the island super-fiber until no resin liquid is dripped, transferring the island super-fiber non-woven fabric into a drying box, drying, dry grinding and rolling to obtain the waterproof anti-fouling super-fiber fabric.
Example 5
The waterproof and anti-fouling microfiber fabric comprises sea-island staple fibers and anti-fouling resin liquid prepared in the embodiment 2, wherein the sea-island staple fibers are 37-island fixed sea-island staple fibers or 64-island fixed sea-island staple fibers, and the weight ratio of the sea-island staple fibers to the anti-fouling resin liquid is 6:4;
the processing technology of the waterproof and anti-fouling microfiber fabric comprises the following steps:
firstly, opening, carding, lapping, pre-needling and needling the island short fibers to obtain island super-fiber non-woven fabrics;
and secondly, placing the prepared island super-fiber non-woven fabric into an ultrasonic instrument, wherein a softener is filled in the ultrasonic instrument, after ultrasonic softening for 10min, fishing the island super-fiber and draining the island super-fiber until no liquid is formed, dripping, then soaking the island super-fiber into the anti-fouling resin liquid, carrying out ultrasonic treatment at room temperature for 45min, fishing and draining the island super-fiber until no resin liquid is dripped, transferring to a drying box, drying, dry grinding and rolling to obtain the waterproof anti-fouling super-fiber fabric.
Example 6
The waterproof and anti-fouling microfiber fabric comprises sea-island staple fibers and anti-fouling resin liquid prepared in the embodiment 3, wherein the sea-island staple fibers are 37-island fixed sea-island staple fibers or 64-island fixed sea-island staple fibers, and the weight ratio of the sea-island staple fibers to the anti-fouling resin liquid is 8:2;
the processing technology of the waterproof and anti-fouling microfiber fabric comprises the following steps:
firstly, opening, carding, lapping, pre-needling and needling the island short fibers to obtain island super-fiber non-woven fabrics;
and secondly, placing the prepared island super-fiber non-woven fabric into an ultrasonic instrument, wherein a softener is filled in the ultrasonic instrument, after ultrasonic softening for 10min, fishing the island super-fiber and draining the island super-fiber until no liquid is formed, dripping, then soaking the island super-fiber into the anti-fouling resin liquid, carrying out ultrasonic treatment at room temperature for 45min, fishing and draining the island super-fiber until no resin liquid is dripped, transferring to a drying box, drying, dry grinding and rolling to obtain the waterproof anti-fouling super-fiber fabric.
Comparative example 1
In this comparative example, the stain-resistant resin liquid of the present invention was replaced with a commercially available polyurethane resin liquid as compared with example 4.
The properties of the fabrics prepared in examples 4 to 6 and comparative example 1 were measured, and the results are shown in table 1 below;
hydrophobicity: the Contact Angle (CAs) was measured with a contact angle tester (model JC2000D 1) at room temperature with 4 μl of a fixed water drop, and the final contact angle value was calculated from the average of five measurements at different areas of the sample.
Adhesion properties: the surfaces of the fabrics prepared in examples 4 to 6 and comparative example 1 were cut with a blade into 10 cuts in both horizontal and vertical directions, and then 3M tape (adhesive force of about 400Nm -1 ) The cycle peeling was performed, and the number of cycle peeling times was recorded as it was.
TABLE 1
Example 4 Example 5 Example 6 Comparative example 1
Contact angle with water 138° 136° 135° 78°
Number of cycle stripping times 48 46 46 28
From table 1 above, it can be seen that the fabrics prepared in examples 4 to 6 of the present invention have higher hydrophobic properties, and the anti-fouling resin liquid has excellent bonding properties with the non-woven fabrics.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims (4)

1. The waterproof and anti-fouling microfiber fabric comprises sea-island short fibers and an anti-fouling resin liquid, and is characterized in that the anti-fouling resin liquid comprises the following steps:
step S1, adding trimethoxy silane and acetic acid into a four-neck flask under argon atmosphere, stirring at a constant speed, adding tetrahydrofuran, controlling the temperature of the system to be 0-6 ℃, stirring at a constant speed for 12 hours, slowly adding mercaptopropyl methyl dimethoxy silane, stirring at a constant speed, reacting for 4 hours, preparing an intermediate 1, controlling the weight ratio of trimethoxy silane to acetic acid to tetrahydrofuran to be 5-10:0.05-0.08:5-10, and controlling the molar ratio of trimethoxy silane to mercaptopropyl methyl dimethoxy silane to be 1:3;
s2, adding the intermediate 1 and the perfluoroalkyl ethyl acrylate into a reaction bottle, stirring at a constant speed, adding benzoin dimethyl ether, irradiating with an ultraviolet lamp, and reacting for 30min to obtain an intermediate 2, wherein the molar ratio of the intermediate 1 to the perfluoroalkyl ethyl acrylate is controlled to be 3:1, and the dosage of the benzoin dimethyl ether is 2-3% of the weight of the intermediate 1 and the perfluoroalkyl ethyl acrylate;
s3, adding isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate into a reaction flask under the argon atmosphere, adding butanone, heating and refluxing for reaction for 3 hours, cooling to 40 ℃ after the reaction is finished, adding an intermediate 2 and triethylamine, and continuing the reaction for 1 hour to obtain an anti-fouling resin liquid, wherein the dosage ratio of isophorone diisocyanate, polytetramethylene glycol and dibutyltin dilaurate is controlled to be 0.05-0.08 mol:0.024-0.026 mol:1 mL, the dosage of the intermediate 2 is 0.3-0.5 of the weight of isophorone diisocyanate, and the dosage of the triethylamine is 2.5-3% of the weight of the intermediate 2.
2. The waterproof and anti-fouling microfiber fabric of claim 1, wherein the sea-island staple fibers are 37-island sea-island staple fibers or 64-island sea-island staple fibers.
3. The waterproof and anti-fouling microfiber fabric according to claim 1, wherein the weight ratio of the sea-island staple fibers to the anti-fouling resin liquid is 5-8:2-5.
4. The processing technology of the waterproof and anti-fouling microfiber fabric according to claim 1, which is characterized by comprising the following steps:
firstly, opening, carding, lapping, pre-needling and needling the island short fibers to obtain island super-fiber non-woven fabrics;
and secondly, placing the prepared island super-fiber non-woven fabric into an ultrasonic instrument, wherein a softener is filled in the ultrasonic instrument, after ultrasonic softening for 10min, fishing the island super-fiber and draining the island super-fiber until no liquid is formed, dripping, then soaking the island super-fiber non-woven fabric into the anti-fouling resin liquid, carrying out ultrasonic treatment for 30-45min at room temperature, fishing and draining the island super-fiber non-woven fabric until no resin liquid is dripped, transferring to a drying box, drying, dry grinding and rolling to obtain the waterproof anti-fouling super-fiber fabric.
CN202310494747.6A 2023-05-05 2023-05-05 Waterproof and anti-fouling microfiber fabric and processing technology thereof Active CN116516684B (en)

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