CN112900092A - Antibacterial soil-release fabric and preparation method thereof - Google Patents
Antibacterial soil-release fabric and preparation method thereof Download PDFInfo
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- CN112900092A CN112900092A CN202110239431.3A CN202110239431A CN112900092A CN 112900092 A CN112900092 A CN 112900092A CN 202110239431 A CN202110239431 A CN 202110239431A CN 112900092 A CN112900092 A CN 112900092A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
- D06M15/233—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
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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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- 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
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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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
- D06M2200/01—Stain or soil resistance
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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
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Abstract
The invention discloses an antibacterial and soil-release fabric and a preparation method thereof, and relates to the field of fabrics, styrene and maleic anhydride are precipitated and polymerized into a styrene maleic anhydride copolymer, the styrene maleic anhydride copolymer is acylated and modified by sulfuric acid ethyl sulfuryl aniline, a vinyl sulfuryl active group is introduced to obtain a modified maleic anhydride copolymer, the modified maleic anhydride copolymer reacts with grafted cotton fibers, the color depth and the color fastness of the grafted cotton fibers and pigments can be improved, a grid shape formed by the reaction can have double adsorption and complexation effects on silver ions, the adsorption of the silver ions is enhanced, so that better antibacterial property is achieved, in addition, the existence of branched chains on the modified maleic anhydride copolymer can cause certain effects to cause the increase of vitrification temperature, the modified maleic anhydride copolymer is embedded into a grid structure formed by crosslinking effect, the pyrolysis temperature of film layers of coated cotton fibers is higher than the carbonization temperature of the cotton fibers, the cotton fibers can be carbonized firstly, thereby improving the flame retardancy of the cotton fiber.
Description
Technical Field
The invention relates to the technical field of fabrics, in particular to an antibacterial soil-release fabric and a preparation method thereof.
Background
With the increase of domestic fabric technical means and the demands of people, a plurality of fabrics with special effects, such as water resistance, antibiosis and the like, appear on the market, but most of the antibacterial fabrics on the market only have the functions of removing bacteria on fabrics and keeping the fabrics clean, and cannot achieve a plurality of effects simultaneously.
Disclosure of Invention
The invention aims to provide an antibacterial soil-release fabric and a preparation method thereof, and aims to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: an antibacterial soil-release fabric and a preparation method thereof, comprising the following raw materials by weight:
50-80 parts of modified maleic anhydride copolymer and 70-100 parts of grafted cotton fiber.
Preferably, the modified maleic anhydride copolymer comprises a styrene maleic anhydride copolymer and ethyl sulfate sulfuryl aniline.
Preferably, the styrene-maleic anhydride copolymer is prepared by dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.1-0.3 time that of maleic anhydride, precipitating with methanol with the mass of 0.3-0.5 time that of maleic anhydride, filtering, drying, and repeating the operation for multiple times.
Preferably, the modified maleic anhydride copolymer is prepared by stirring and heating ethyl sulfate sulfuryl aniline dissolved by sodium bicarbonate, p-toluenesulfonic acid and styrene maleic anhydride copolymer in a tetrahydrofuran solution with the mass ratio of 2:0.2: 4-2: 0.2:8, wherein the tetrahydrofuran solution is 0.1-0.3 times of the mass of maleic anhydride, and then filtering, washing and drying the mixture.
Preferably, the grafted cotton fiber is prepared by soaking cotton fiber in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating to react with the methacrylamide, washing with water, and removing impurities by acetone which is 0.1-0.3 time of the mass of the cotton fiber.
The invention provides an antibacterial soil-release fabric and a preparation method thereof, and the preparation method comprises the following specific steps:
(1) preparation of styrene maleic anhydride copolymer: dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.1-0.3 time that of maleic anhydride, precipitating with methanol with the mass of 0.3-0.5 time that of maleic anhydride, filtering, drying, and repeating the operation for multiple times to obtain the styrene/maleic anhydride composite material;
(2) preparation of modified maleic anhydride copolymer: the ethyl sulfate sulfuryl aniline, the p-toluenesulfonic acid and the styrene maleic anhydride copolymer which are dissolved by the sodium bicarbonate under the ice bath condition are stirred and heated to react in a tetrahydrofuran solution with the mass ratio of 2:0.2: 4-2: 0.2:8, wherein the tetrahydrofuran solution is 0.1-0.3 times of the mass of the maleic anhydride, and the ethyl sulfate sulfuryl aniline, the p-toluenesulfonic acid and the styrene maleic anhydride copolymer are obtained through filtering, washing and drying;
(3) preparation of grafted cotton fiber: soaking cotton fibers in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating and reacting with the methacrylamide, washing, and removing impurities by acetone which is 0.1-0.3 times of the mass of the cotton fibers to obtain the cotton fibers;
(4) preparing the antibacterial soil-release fabric: the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 200-230 g/m2An antibacterial soil-release fabric.
Preferably, in the step (1): dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, placing the mixture into a flask, reacting for 6-7 hours at 70-80 ℃, dissolving the mixture in tetrahydrofuran with the mass of 0.1-0.3 time that of the maleic anhydride, dripping the mixture into methanol for precipitation and filtration, and drying the mixture in a vacuum oven at 40-50 ℃, and repeating the process for 2-3 times to obtain the styrene-maleic anhydride copolymer.
Preferably, in the step (2): dissolving ethyl sulfate sulfuryl aniline with the mass of styrene maleic anhydride copolymer of 0.5-1 in sodium bicarbonate under an ice bath condition, stirring and dissolving p-toluenesulfonic acid and styrene maleic anhydride copolymer in a tetrahydrofuran solvent according to the mass ratio of 0.2: 4-0.2: 8, adding an ethyl sulfate sulfuryl aniline solution, heating to 60-70 ℃ for reaction for 6-7 hours, removing impurities after the reaction is finished, washing with water and drying to obtain the modified maleic anhydride copolymer.
Preferably, in the step (3): preparing an initiator potassium persulfate solution with the concentration of 0.3-0.5 mol/L, adjusting the pH value to 8-9 by using sodium hydroxide, soaking cotton fibers in the solution according to the bath ratio of 1:30, heating to 70-80 ℃, keeping for 30-40 minutes, adding methacrylamide, controlling the concentration to be 0.5-0.7 mol/L, reacting for 1-2 hours at 70-80 ℃, taking out, washing with water, putting into a Soxhlet extractor containing acetone, extracting for 10-12 hours, and removing impurities to obtain the grafted cotton fibers.
Preferably, in the step (4): modified maleic anhydride copolymer and grafted cotton fiber are subjected toAfter double twisting, spinning, dyeing, color fixing and weaving, the gram weight is 200-230 g/m2An antibacterial soil-release fabric.
Compared with the prior art, the invention has the following beneficial effects:
because there is no binding force between the pigment and the cotton fiber, adding a large amount of adhesive and crosslinking agent during color fixation can cause the problems of poor hand feeling, unobvious fastness improvement and the like, styrene and maleic anhydride are precipitated and polymerized into a styrene maleic anhydride copolymer, the double bonds of the styrene maleic anhydride are partially positively charged by an electron-withdrawing group of the maleic anhydride, the styrene contains benzene rings capable of enabling electrons to be conjugated, the double bonds can be partially negatively charged by induction, the two substances with similar activity but opposite charges are easy to be subjected to alternate copolymerization to form a stable structure with positive and negative attraction, ethyl sulfate sulfuryl aniline is used for acylation modification, a vinylsulfone active group is introduced and is grafted onto the styrene maleic anhydride copolymer to be better reacted with the methyl grafted cotton fiber, so that the pigment and the methyl propionamide grafted cotton fiber have certain affinity, and the adsorption capacity is greatly increased, the color depth and the color fastness of the methacrylamide grafted cotton fiber and the pigment are improved, active groups on the styrene maleic anhydride copolymer and hydroxyl groups in methacrylamide grafted cotton fiber are subjected to covalent bonding, a formed film plays a bridging role among fiber macromolecules and covers the surface of the methacrylamide grafted cotton fiber, so that the flexibility of the methacrylamide grafted cotton fiber fabric is influenced, the methacrylamide grafted cotton fiber fabric has better hand feeling, the styrene maleic anhydride copolymer and amino groups in the methacrylamide grafted cotton fiber can be subjected to a cross-linking reaction to form a grid shape, the double adsorption and complexation effects on silver ions can be realized, the adsorption of the silver ions is enhanced, the silver ions can be bound in the grid under the steaming condition to be reduced into nano silver, the migration is reduced, the aggregation of the nano silver is sequentially limited, and the nano silver is uniformly distributed on the surface layer of the cotton fiber, therefore, better antibacterial property is achieved, and the nano silver is embedded in the grid shape, is not easy to fall off in repeated washing, and has good washing resistance.
When the molecular weight of the styrene maleic anhydride copolymer is larger, the activity of chain segments is enhanced, benzene ring groups are enabled to be close to each other to form a series of hydrophobic micro-regions, the hydrophobic acting force between the chain segments of the copolymer is enhanced, after the styrene maleic anhydride copolymer and methacrylamide grafted cotton fibers react, a polymethacrylamide branched chain and the chain segments of the copolymer are crosslinked, so that the hydrophobicity of the cotton fibers is enhanced, at high temperature, the intermolecular entanglement is enhanced due to the existence of the branched chain on the styrene maleic anhydride copolymer, the acting force between molecules is increased, the flexibility of the molecular chain is reduced, the fluidity is reduced, so that the glass transition temperature of the styrene maleic anhydride copolymer is increased, the thermal stability is improved, according to a grid-shaped structure formed by the crosslinking, the styrene maleic anhydride copolymer is embedded into a grid, the distribution is uniform, and the thermal stability of the cotton fibers is improved, and under the high temperature condition, the film pyrolysis temperature of the coated cotton fiber is higher than the carbonization temperature of the cotton fiber, and the cotton fiber can be carbonized firstly, so that the flame retardance of the cotton fiber is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the technical scheme that: an antibacterial soil-release fabric and a preparation method thereof, comprising the following raw materials by weight:
50-80 parts of modified maleic anhydride copolymer and 70-100 parts of grafted cotton fiber.
Preferably, the modified maleic anhydride copolymer comprises a styrene maleic anhydride copolymer and ethyl sulfate sulfuryl aniline.
Preferably, the styrene-maleic anhydride copolymer is prepared by dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.1-0.3 time that of maleic anhydride, precipitating with methanol with the mass of 0.3-0.5 time that of maleic anhydride, filtering, drying, and repeating the operation for multiple times.
Preferably, the modified maleic anhydride copolymer is prepared by stirring and heating ethyl sulfate sulfuryl aniline dissolved by sodium bicarbonate, p-toluenesulfonic acid and styrene maleic anhydride copolymer in a tetrahydrofuran solution with the mass ratio of 2:0.2: 4-2: 0.2:8, wherein the tetrahydrofuran solution is 0.1-0.3 times of the mass of maleic anhydride, and then filtering, washing and drying the mixture.
Preferably, the grafted cotton fiber is prepared by soaking cotton fiber in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating to react with the methacrylamide, washing with water, and removing impurities by acetone which is 0.1-0.3 time of the mass of the cotton fiber.
The invention provides an antibacterial soil-release fabric and a preparation method thereof, and the preparation method comprises the following specific steps:
(1) preparation of styrene maleic anhydride copolymer: dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.1-0.3 time that of maleic anhydride, precipitating with methanol with the mass of 0.3-0.5 time that of maleic anhydride, filtering, drying, and repeating the operation for multiple times to obtain the styrene/maleic anhydride composite material;
(2) preparation of modified maleic anhydride copolymer: the ethyl sulfate sulfuryl aniline, the p-toluenesulfonic acid and the styrene maleic anhydride copolymer which are dissolved by the sodium bicarbonate under the ice bath condition are stirred and heated to react in a tetrahydrofuran solution with the mass ratio of 2:0.2: 4-2: 0.2:8, wherein the tetrahydrofuran solution is 0.1-0.3 times of the mass of the maleic anhydride, and the ethyl sulfate sulfuryl aniline, the p-toluenesulfonic acid and the styrene maleic anhydride copolymer are obtained through filtering, washing and drying;
(3) preparation of grafted cotton fiber: soaking cotton fibers in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating and reacting with the methacrylamide, washing, and removing impurities by acetone which is 0.1-0.3 times of the mass of the cotton fibers to obtain the cotton fibers;
(4) preparing the antibacterial soil-release fabric: the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 200-230 g/m2An antibacterial soil-release fabric.
Preferably, in the step (1): dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, placing the mixture into a flask, reacting for 6-7 hours at 70-80 ℃, dissolving the mixture in tetrahydrofuran with the mass of 0.1-0.3 time that of the maleic anhydride, dripping the mixture into methanol for precipitation and filtration, and drying the mixture in a vacuum oven at 40-50 ℃, and repeating the process for 2-3 times to obtain the styrene-maleic anhydride copolymer.
Preferably, in the step (2): dissolving ethyl sulfate sulfuryl aniline with the mass of styrene maleic anhydride copolymer of 0.5-1 in sodium bicarbonate under an ice bath condition, stirring and dissolving p-toluenesulfonic acid and styrene maleic anhydride copolymer in a tetrahydrofuran solvent according to the mass ratio of 0.2: 4-0.2: 8, adding an ethyl sulfate sulfuryl aniline solution, heating to 60-70 ℃ for reaction for 6-7 hours, removing impurities after the reaction is finished, washing with water and drying to obtain the modified maleic anhydride copolymer.
Preferably, in the step (3): preparing an initiator potassium persulfate solution with the concentration of 0.3-0.5 mol/L, adjusting the pH value to 8-9 by using sodium hydroxide, soaking cotton fibers in the solution according to the bath ratio of 1:30, heating to 70-80 ℃, keeping for 30-40 minutes, adding methacrylamide, controlling the concentration to be 0.5-0.7 mol/L, reacting for 1-2 hours at 70-80 ℃, taking out, washing with water, putting into a Soxhlet extractor containing acetone, extracting for 10-12 hours, and removing impurities to obtain the grafted cotton fibers.
Preferably, in the step (4): the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 200-230 g/m2An antibacterial soil-release fabric.
Example 1: antibacterial soil-release fabric I
An antibacterial soil-release fabric comprises the following raw materials in parts by weight:
50 parts of modified maleic anhydride copolymer and 70 parts of grafted cotton fiber.
An antibacterial soil release fabric and a preparation method thereof, comprising the following steps:
(1) preparation of styrene maleic anhydride copolymer: dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1:2, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.1 time that of the maleic anhydride, precipitating with methanol with the mass of 0.3 time that of the maleic anhydride, filtering, drying, and repeatedly operating for multiple times to obtain the styrene/maleic anhydride composite material;
(2) preparation of modified maleic anhydride copolymer: ethyl sulfate sulfuryl aniline, p-toluenesulfonic acid and styrene maleic anhydride copolymer dissolved by sodium bicarbonate under the ice bath condition are stirred and heated to react in tetrahydrofuran solution with the mass of 0.1 time of that of maleic anhydride according to the mass ratio of 2:0.2:4, and then the mixture is filtered, washed and dried to obtain the product;
(3) preparation of grafted cotton fiber: soaking cotton fibers in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating to react with the methacrylamide, washing, and removing impurities by acetone which is 0.1 time of the mass of the cotton fibers to obtain the cotton fibers;
(4) preparing the antibacterial soil-release fabric: the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 200g/m2An antibacterial soil-release fabric.
Preferably, in the step (1): dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1:2, placing the mixture into a flask, reacting for 6 hours at 70 ℃, dissolving the mixture in tetrahydrofuran with the mass of 0.1 time that of the maleic anhydride, dripping the mixture into methanol for precipitation, filtering, drying in a vacuum oven at 40 ℃, and repeating the process for 2 times to obtain the styrene-maleic anhydride copolymer.
Preferably, in the step (2): dissolving ethyl sulfate sulfuryl aniline with the mass of 0.5 time that of the styrene maleic anhydride copolymer in sodium bicarbonate under an ice bath condition, stirring and dissolving the p-toluenesulfonic acid and the styrene maleic anhydride copolymer in a tetrahydrofuran solvent according to the mass ratio of 0.2:4, adding the ethyl sulfate sulfuryl aniline solution, heating to 60 ℃ for reaction for 6 hours, removing impurities after the reaction is finished, washing with water and drying to obtain the modified maleic anhydride copolymer.
Preferably, in the step (3): preparing an initiator potassium persulfate solution with the concentration of 0.3mol/L, adjusting the pH value to 8 by using sodium hydroxide, soaking cotton fibers in the solution according to the bath ratio of 1:30, heating to 70 ℃ for 30 minutes, adding methacrylamide, controlling the concentration to be 0.5mol/L, reacting at 70 ℃ for 1 hour, taking out, washing with water, putting into a Soxhlet extractor containing acetone, extracting for 10 hours, and removing impurities to obtain the grafted cotton fibers.
Preferably, in the step (4): the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 200g/m2An antibacterial soil-release fabric.
Example 2: antibacterial soil-release fabric II
An antibacterial soil-release fabric comprises the following raw materials in parts by weight:
80 parts of modified maleic anhydride copolymer and 100 parts of grafted cotton fiber.
An antibacterial soil release fabric and a preparation method thereof, comprising the following steps:
(1) preparation of styrene maleic anhydride copolymer: dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1:4, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.3 time that of the maleic anhydride, precipitating with methanol with the mass of 0.5 time that of the maleic anhydride, filtering, drying, and repeatedly operating for multiple times to obtain the styrene/maleic anhydride composite material;
(2) preparation of modified maleic anhydride copolymer: ethyl sulfate sulfuryl aniline, p-toluenesulfonic acid and styrene maleic anhydride copolymer dissolved by sodium bicarbonate under the ice bath condition are stirred and heated to react in tetrahydrofuran solution with the mass of 0.3 times of that of maleic anhydride according to the mass ratio of 2:0.2:8, and then the mixture is filtered, washed and dried to obtain the product;
(3) preparation of grafted cotton fiber: soaking cotton fibers in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating to react with the methacrylamide, washing, and removing impurities by acetone with the mass of 0.3 time that of the cotton fibers to obtain the cotton fibers;
(4) preparing the antibacterial soil-release fabric: the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 230g/m2An antibacterial soil-release fabric.
Preferably, in the step (1): dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1:4, placing the mixture into a flask, reacting for 7 hours at 80 ℃, dissolving the mixture in tetrahydrofuran with the mass of 0.3 time that of the maleic anhydride, dripping the mixture into methanol for precipitation, filtering, drying in a vacuum oven at 50 ℃, and repeating the process for 3 times to obtain the styrene-maleic anhydride copolymer.
Preferably, in the step (2): dissolving ethyl sulfate sulfuryl aniline with the mass of 1 time of that of the styrene maleic anhydride copolymer in sodium bicarbonate under an ice bath condition, stirring and dissolving the p-toluenesulfonic acid and the styrene maleic anhydride copolymer in a tetrahydrofuran solvent according to the mass ratio of 0.2:8, adding an ethyl sulfate sulfuryl aniline solution, heating to 70 ℃ for reaction for 7 hours, removing impurities after the reaction is finished, washing with water and drying to obtain the modified maleic anhydride copolymer.
Preferably, in the step (3): preparing an initiator potassium persulfate solution with the concentration of 0.5mol/L, adjusting the pH value to 9 by using sodium hydroxide, soaking cotton fibers in the solution according to the bath ratio of 1:30, heating to 80 ℃, keeping the temperature for 40 minutes, adding methacrylamide, controlling the concentration to be 0.7mol/L, reacting for 2 hours at 80 ℃, taking out, washing with water, putting into a Soxhlet extractor containing acetone, extracting for 12 hours, and removing impurities to obtain the grafted cotton fibers.
Preferably, in the step (4): the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 230g/m2An antibacterial soil-release fabric.
Comparative example 1:
preparing a common fabric: after spinning, weaving and dyeing and finishing the common cotton fiber, treating the fabric by using a conditioner to obtain the common cotton fiber fabric.
Comparative example 2:
comparative example 2 was formulated as in example 1. The preparation method of the antibacterial soil-release fabric is different from that of the example 1 only in that the preparation of the step (2) is not carried out, and the rest preparation steps are the same as those of the example 1.
Comparative example 3:
the formulation of ratio 3 was the same as in example 1. The preparation method of the antibacterial soil-release fabric is different from that of the example 1 only in that the preparation of the step (3) is not carried out, and the rest preparation steps are the same as those of the example 1.
Test example 1
The fabrics of example 1, comparative example 1 and comparative example 2 were dyed under the following conditions: 10g/L pigment, 30g/L sodium bicarbonate, 5g/L binder, steaming at 120 ℃ for 20 minutes.
Therefore, the fabric made of the cotton fiber reacted by the modified maleic anhydride copolymer is greatly improved in color quantity and color fastness, because the ethyl sulfate sulfuryl aniline grafts the vinyl sulfone active group onto the styrene maleic anhydride copolymer, and the vinyl sulfone active group is acylated and modified, so that the vinyl sulfone active group and the methacrylamide grafted cotton fiber can better react, a certain affinity is provided between the pigment and the methacrylamide grafted cotton fiber, the adsorption quantity is greatly increased, and the color depth and the color fastness of the methacrylamide grafted cotton fiber and the pigment are improved.
Test example 2
The antibacterial property of the fabrics prepared in example 1, comparative example 1 and comparative example 3 is respectively tested by finishing, and the acting force of the fabrics for adsorbing silver ions is observed.
| Mass fraction of silver ion (mg. kg)-1) | Bacteriostatic ratio (%) | |
| Example 1 | 112.8 | 99.6 |
| Comparative example 1 | 0 | 0 |
| Comparative example 3 | 25.2 | 41.4 |
The amino group and the modified maleic anhydride in the cotton fiber grafted by the methacrylamide are subjected to a cross-linking reaction to form a grid shape, so that the double adsorption and complexation effects on silver ions are achieved, the adsorption of the silver ions is enhanced, the silver ions can be bound in the grid under the steaming condition and reduced into nano silver, the migration is reduced, the agglomeration of the nano silver is sequentially limited, the nano silver is uniformly distributed on the surface layer of the cotton fiber, and the better antibacterial property is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The antibacterial decontamination fabric is characterized by comprising the following raw materials in parts by weight: 50-80 parts of modified maleic anhydride copolymer and 70-100 parts of grafted cotton fiber.
2. The antibacterial decontamination fabric according to claim 1, characterized in that: the modified maleic anhydride copolymer comprises styrene maleic anhydride copolymer and ethyl sulfate sulfuryl aniline.
3. The antibacterial decontamination fabric according to claim 2, characterized in that: the styrene-maleic anhydride copolymer is prepared by dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.1-0.3 time that of maleic anhydride, precipitating with methanol with the mass of 0.3-0.5 time that of maleic anhydride, filtering, drying, and repeating the operation for multiple times.
4. The antibacterial decontamination fabric according to claim 2, characterized in that: the modified maleic anhydride copolymer is prepared by stirring and heating ethyl sulfate sulfuryl aniline, p-toluenesulfonic acid and styrene maleic anhydride copolymer which are dissolved by sodium bicarbonate under the ice bath condition in a tetrahydrofuran solution with the mass ratio of 2:0.2: 4-2: 0.2:8, wherein the tetrahydrofuran solution is 0.1-0.3 times of the mass of maleic anhydride, and then filtering, washing and drying the mixture.
5. The antibacterial decontamination fabric according to claim 1, characterized in that: the grafted cotton fiber is prepared by soaking cotton fiber in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating to react with the methacrylamide, washing with water, and removing impurities through acetone which is 0.1-0.3 times of the mass of the cotton fiber.
6. The preparation method of the antibacterial decontamination fabric is characterized by comprising the following steps:
(1) preparation of styrene maleic anhydride copolymer: dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, heating for reaction, dissolving with tetrahydrofuran with the mass of 0.1-0.3 time that of maleic anhydride, precipitating with methanol with the mass of 0.3-0.5 time that of maleic anhydride, filtering, drying, and repeating the operation for multiple times to obtain the styrene/maleic anhydride composite material;
(2) preparation of modified maleic anhydride copolymer: the ethyl sulfate sulfuryl aniline, the p-toluenesulfonic acid and the styrene maleic anhydride copolymer which are dissolved by the sodium bicarbonate under the ice bath condition are stirred and heated to react in a tetrahydrofuran solution with the mass ratio of 2:0.2: 4-2: 0.2:8, wherein the tetrahydrofuran solution is 0.1-0.3 times of the mass of the maleic anhydride, and the ethyl sulfate sulfuryl aniline, the p-toluenesulfonic acid and the styrene maleic anhydride copolymer are obtained through filtering, washing and drying;
(3) preparation of grafted cotton fiber: soaking cotton fibers in an initiator potassium persulfate solution with the pH value of 9, adding methacrylamide, heating and reacting with the methacrylamide, washing, and removing impurities by acetone which is 0.1-0.3 times of the mass of the cotton fibers to obtain the cotton fibers;
(4) preparing the antibacterial soil-release fabric: the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 200-230 g/m2An antibacterial soil-release fabric.
7. The antibacterial decontamination fabric and the preparation method thereof according to claim 6, wherein in the step (1): dissolving styrene and maleic anhydride in toluene according to the mass ratio of 1: 2-1: 4, placing the mixture into a flask, reacting for 6-7 hours at 70-80 ℃, dissolving the mixture in tetrahydrofuran with the mass of 0.1-0.3 time that of the maleic anhydride, dripping the mixture into methanol for precipitation and filtration, and drying the mixture in a vacuum oven at 40-50 ℃, and repeating the process for 2-3 times to obtain the styrene-maleic anhydride copolymer.
8. The antibacterial decontamination fabric and the preparation method thereof according to claim 6, wherein in the step (2): dissolving ethyl sulfate sulfuryl aniline with the mass of styrene maleic anhydride copolymer of 0.5-1 in sodium bicarbonate under an ice bath condition, stirring and dissolving p-toluenesulfonic acid and styrene maleic anhydride copolymer in a tetrahydrofuran solvent according to the mass ratio of 0.2: 4-0.2: 8, adding an ethyl sulfate sulfuryl aniline solution, heating to 60-70 ℃ for reaction for 6-7 hours, removing impurities after the reaction is finished, washing with water and drying to obtain the modified maleic anhydride copolymer.
9. The antibacterial decontamination fabric and the preparation method thereof according to claim 6, wherein in the step (3): preparing an initiator potassium persulfate solution with the concentration of 0.3-0.5 mol/L, adjusting the pH value to 8-9 by using sodium hydroxide, soaking cotton fibers in the solution according to the bath ratio of 1:30, heating to 70-80 ℃, keeping for 30-40 minutes, adding methacrylamide, controlling the concentration to be 0.5-0.7 mol/L, reacting for 1-2 hours at 70-80 ℃, taking out, washing with water, putting into a Soxhlet extractor containing acetone, extracting for 10-12 hours, and removing impurities to obtain the grafted cotton fibers.
10. The antibacterial decontamination fabric and the preparation method thereof according to claim 6, wherein in the step (4): the modified maleic anhydride copolymer and the grafted cotton fiber are subjected to double twisting, spinning, dyeing, color fixation and weaving to obtain the modified maleic anhydride copolymer and the grafted cotton fiber with the gram weight of 200-230 g/m2An antibacterial soil-release fabric.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305612A (en) * | 2022-09-14 | 2022-11-08 | 罗莱生活科技股份有限公司 | Polyester fiber core-spun yarn and preparation method thereof |
| CN117700793A (en) * | 2023-12-25 | 2024-03-15 | 合肥科拜尔新材料股份有限公司 | Nano silver suicide resin material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305612A (en) * | 2022-09-14 | 2022-11-08 | 罗莱生活科技股份有限公司 | Polyester fiber core-spun yarn and preparation method thereof |
| CN117700793A (en) * | 2023-12-25 | 2024-03-15 | 合肥科拜尔新材料股份有限公司 | Nano silver suicide resin material and preparation method thereof |
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Application publication date: 20210604 |