CN113502660B - Cool antibacterial mosquito net fabric and preparation method thereof - Google Patents
Cool antibacterial mosquito net fabric and preparation method thereof Download PDFInfo
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- CN113502660B CN113502660B CN202111058647.6A CN202111058647A CN113502660B CN 113502660 B CN113502660 B CN 113502660B CN 202111058647 A CN202111058647 A CN 202111058647A CN 113502660 B CN113502660 B CN 113502660B
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/2243—Mono-, di-, or triglycerides
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/48—Polymers modified by chemical after-treatment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—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
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Abstract
The invention discloses a cool antibacterial mosquito net fabric and a preparation method thereof. Firstly, polyamide and alkyl biguanide salt are polymerized to prepare modified polyamide, so that polyamide fiber has an antibacterial effect, then the mosquito net fabric is obtained through melt spinning, stretch forming and weaving, and finally the after-finishing agent is sprayed on the fabric through a spraying method to prepare the cool antibacterial mosquito net fabric; the post-finishing agent takes polystyrene microspheres as a template agent and toluene as a pore-making agent, the glycidyl laurate is made into porous microspheres, and micropores on the surface of the porous microspheres can effectively block the transmission of radiation heat outside air, so that the mosquito net fabric has a cooling effect. The cool antibacterial mosquito net fabric prepared by the invention has good washing fastness, antibacterial and heat insulation effects.
Description
Technical Field
The invention relates to the field of textile fabrics, in particular to a cool antibacterial mosquito net fabric and a preparation method thereof.
Background
With the progress of society and the continuous improvement of living standard of people, textile fabrics are widely applied to various fields of medical care, transportation, interior decoration, clothes and the like. From the past focusing on economical practicality to the current attention on comfort, health care, functionality and the like, people have essential changes on the functional requirements of textile fabrics. The existing mosquito net fabric usually only comprises a layer of simple mesh fabric, has single function and weak antibacterial effect, cannot meet the diversified demands of the market, has poor fabric strength, is easy to deform after being washed by water and has short service life. In addition, many rental houses in summer do not have air conditioners, only ceiling fans, table fans or floor fans are used, the blown air is hot air, at the moment, the mosquito net is hung, the hot air is more soar, the mosquito net is not hung, the mosquito net is bitten by insects, the insect-expelling effect of the insect-expelling patch is not obvious in practical use, and the solid mosquito-repellent incense and the liquid mosquito-repellent incense contain toxic components to a human body. Therefore, a cool antibacterial mosquito net fabric needs to be designed.
Disclosure of Invention
The invention aims to provide a cool antibacterial mosquito net fabric and a preparation method thereof, and aims to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: the cool antibacterial mosquito net fabric is characterized by mainly comprising 2-6 parts by weight of after-finishing agent and 50-80 parts by weight of mosquito net fabric.
Furthermore, the after-finishing agent is glycidyl laurate microspheres prepared by taking polystyrene microspheres as a template and toluene as a pore-making agent.
Furthermore, the mosquito net fabric is made of modified polyamide fibers through warp knitting.
Further, the modified polyamide is prepared by polymerizing alkyl biguanide salt and polyamide.
Further, the cool antibacterial mosquito net fabric comprises the following raw material components in parts by weight: 4 parts of after-finishing agent and 70 parts of mosquito net fabric.
Further, the preparation method of the cool antibacterial mosquito net fabric mainly comprises the following preparation steps:
(1) mixing polyamide and alkyl biguanide salt according to the mass ratio of 1:0.2, placing the mixture in a reaction kettle, adding deionized water with the mass of 1.5 times that of the polyamide and adipic acid with the mass of 0.05 times that of the polyamide, heating to 90 ℃, reacting for 10-20 min, heating to 250 ℃, reacting in a nitrogen atmosphere, heating to 280 ℃ when water vapor is discharged, and reacting for 2h to obtain a modified polyamide polymer;
(2) preparing pre-oriented yarns from the modified polyamide polymer obtained in the step (1) on a melt spinning machine, wherein the spinning speed is 3000 m/min; placing the pre-oriented yarns on a stretching heat-setting machine to prepare modified polyamide fibers, and preparing the mosquito net fabric by a single-needle bed warp knitting machine, wherein the mesh number of a unit area is 25 holes/cm2；
(3) Mixing the degreasing agent, the calcined soda and the glacial acetic acid according to the mass ratio of 0.5:0.3:1, heating and boiling, then putting the mixture into the mosquito net cloth fabric obtained in the step (2), standing the mixture for 15min at 100 ℃, and washing the mixture for 2-3 times by using deionized water to obtain a pretreated mosquito net cloth fabric;
(4) sequentially passing the pretreated mosquito net cloth fabric obtained in the step (3) through a rear winding roller, an organic glass cover inlet, a spray gun lower part, an organic glass cover outlet and a traction winding roller from left to right, and connecting an air compressor with the spray gun through a hose; spraying the after-finishing agent on the mosquito net by the spray gun from the square round hole on the glass cover to obtain the cool antibacterial mosquito net fabric.
Further, the preparation method of the alkyl biguanide salt in the step (1) comprises the following steps: dripping hydrochloric acid with the mass fraction of 38% and 1.04 times of the mass of N-cocoyl propylenediamine into a four-neck flask filled with a mixed solution of the N-cocoyl propylenediamine and isopropanol at the speed of 2mL/min, mixing the N-cocoyl propylenediamine and the isopropanol at the mass ratio of 1:0.2, stirring at the temperature of 50 ℃ for 1h at the speed of 150r/min, dripping a cyanamide aqueous solution with the mass fraction of 40.48% and the mass fraction of 1.44 times of the mass of the N-cocoyl propylenediamine at the speed of 2mL/min, heating to 130 ℃, reacting for 10h, rotationally evaporating at the speed of 200-250 r/min for 4-5 min, washing with acetone for 3 times, and drying to obtain the alkyl biguanide salt.
Further, the stretching multiple of the stretching heat setting machine in the step (2) is 1.4-1.8, the stretching temperature is 65-105 ℃, and the heat setting temperature is 110-170 ℃; the mechanical speed of the single needle bar warp knitting machine is 250-500 rpm, and the weaving width is 4350 mm.
Further, the speed of the traction winding roller in the step (4) is 2cm/s, the spraying distance is 30cm, the air inlet pressure is 0.5MPa, and the spraying time is 20 s.
Further, the preparation method of the after-finishing agent in the step (4) comprises the following steps:
a. adding sodium laurate, cetyl trimethyl ammonium bromide which is 0.082 times of the mass of the sodium laurate and toluene which is 165.79 times of the mass of the sodium laurate into a three-neck flask, dripping epoxy chloropropane which is 0.83 times of the mass of the sodium laurate at the speed of 1mL/min, stirring at 200rpm for 2 hours at the temperature of 110 ℃, cooling to room temperature, and performing suction filtration to obtain glycidyl laurate;
b. adding polystyrene microspheres, sodium dodecyl sulfate with the mass of 0.005 time that of the polystyrene microspheres and deionized water with the mass of 25 times that of the polystyrene microspheres into a four-neck flask, and activating for 24 hours in a water bath at 30 ℃ and at a stirring speed of 120rpm to prepare a reaction solution;
c. mixing the glycidyl laurate obtained in the step a, toluene, benzoyl peroxide, sodium dodecyl sulfate and a polyvinyl alcohol aqueous solution with the mass fraction of 1% according to the mass ratio of 1:2.8:0.04:0.16:200, and ultrasonically crushing the mixture for 2-3 hours at 200w under the condition of ice-water bath to obtain a mixed solution; and (b) adding the mixed solution into the reaction solution obtained in the step (b), mixing the mixed solution and the reaction solution according to the volume ratio of 1:0.8, swelling for 24 hours under the conditions of 30 ℃ water bath and 120rpm mechanical stirring, adjusting the stirring speed to 250rpm, heating to 70 ℃ water bath under the protection of nitrogen, reacting for 24 hours, performing suction filtration, washing with 60 ℃ deionized water until no foam exists, washing with industrial ethanol for 3 times, extracting for 72 hours in a Soxhlet extractor, performing suction filtration, washing with 60 ℃ deionized water for 7-8 times, washing with anhydrous ethanol until no toluene smell exists, drying for 24 hours in a blast drier at 60 ℃, and thus obtaining the after-finishing agent.
Compared with the prior art, the invention has the following beneficial effects:
the invention takes modified polyamide fiber as raw material to prepare the mosquito net fabric, and utilizes the after-treatment agent to carry out post-treatment on the fabric to prepare the washable, long-acting antibacterial and cool mosquito net fabric.
Firstly, modified polyamide fiber is prepared from alkyl biguanide salt and polyamide; guanidino of the alkyl biguanide salt and terminal amino of the polyamide are subjected to polymerization reaction, the alkyl biguanide salt is introduced into a polyamide molecular chain, and self-made polyamide fiber with the macromolecular chain is synthesized; guanidino is a cationic group and can be combined with phosphoric acid in bacterial cell membrane phospholipid, a hydrophobic substituent extends to a hydrophobic area in a membrane, so that the permeability of the cell membrane is changed, bacteria contents escape outwards, a strong sterilization effect is realized, the self-made polyamide fiber has good antibacterial activity, and meanwhile, the alkyl biguanide salt contains long-chain alkyl, so that the hydrophobicity of the self-made polyamide fiber can be improved, and the self-made polyamide fiber has the effects of water washing resistance and long-acting antibacterial property.
Secondly, the after-finishing agent is glycidyl laurate microspheres, the glycidyl laurate microspheres take polystyrene microspheres as a template agent and toluene as a pore-making agent, a swelling method is adopted, so that the glycidyl laurate microspheres are polymerized to form a through polymer network structure, the polystyrene microspheres and the toluene are wrapped in the glycidyl laurate microspheres, polystyrene and the toluene are extracted, the glycidyl laurate porous microspheres are prepared, the surfaces of the microspheres are provided with a plurality of regular and smooth microporous structures, the size of the microporous structures is far smaller than that of air molecules, the transmission of external radiation heat of air is effectively blocked, and meanwhile, the incident light is reflected by the difference of the refractive indexes of the micropores and the mosquito net fabric, so that the mosquito net fabric has a certain covering power and diffuse reflection capability on sunlight, heat flow is prevented from passing through, and the cool effect is achieved; when the fabric is subjected to post-treatment, epoxy groups on the surfaces of the glycidyl laurate microspheres react with carboxyl and amino groups of the self-made polyamide fiber, so that the glycidyl laurate microspheres can be better adhered to the surface of the mosquito net fabric to form a heat insulation protective layer; meanwhile, the glycidyl laurate has good antibacterial activity, and the molecular chain contains hydrophobic groups such as long-chain alkyl and the like, so that the washing resistance and the antibacterial property of the mosquito net fabric are 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.
To illustrate the method provided by the present invention more clearly, the following examples are provided to illustrate the method for testing each index of the cool antibacterial mosquito net fabric manufactured in the following examples as follows:
the antibacterial rate is as follows: putting a mosquito net cloth fabric sample into a triangular flask with a plug containing sterile normal saline, adding the bacterial suspension, oscillating for 1h under certain conditions, pouring 1mL of test solution into a flat plate for bacterial colony counting, and calculating the antibacterial rate.
Heat insulation: adjusting the room temperature to 20 ℃, placing the mosquito net cloth test fabric on a polystyrene foam plastic plate, enabling one surface coated with the coating to face upwards, starting an iodine-tungsten lamp when the temperature shown by a digital display thermometer is stable, and reading the temperature shown by the thermometer at regular intervals; the reading temperature time is respectively as follows: 0, 10, 20 and 30 min.
Water washing resistance: referring to FZ/T73023, using 2g/L of AATCC1993 standard detergent specified by the standard as a washing solution, putting the super-hydrophobic polyester fabric and the washing solution into a constant-temperature oscillator according to a ratio of 1:30, oscillating and washing for 5min at an oscillation frequency of 100 times/min and a water temperature of 40 ℃, washing with water for 0, 15, 30 and 50 times respectively, and measuring the antibacterial rate of the mosquito net fabric after washing with water and the temperature after irradiating for 10min respectively.
Example 1
A cool antibacterial mosquito net fabric mainly comprises the following components in parts by weight: 4 parts of after-finishing agent and 70 parts of mosquito net fabric.
A preparation method of a cool antibacterial mosquito net fabric mainly comprises the following preparation steps:
(1) mixing polyamide and alkyl biguanide salt according to the mass ratio of 1:0.2, placing the mixture in a reaction kettle, adding deionized water with the mass of 1.5 times that of the polyamide and adipic acid with the mass of 0.05 times that of the polyamide, heating to 90 ℃, reacting for 20min, heating to 250 ℃, reacting in a nitrogen atmosphere, heating to 280 ℃ when water vapor is discharged, and reacting for 2h to obtain a modified polyamide polymer;
(2) preparing pre-oriented yarns from the modified polyamide polymer obtained in the step (1) on a melt spinning machine, wherein the spinning speed is 3000 m/min; placing the pre-oriented yarns on a stretching heat-setting machine to prepare modified polyamide fibers, and preparing the mosquito net fabric by a single-needle bed warp knitting machine, wherein the mesh number of a unit area is 25 holes/cm2；
(3) Mixing the degreasing agent, the calcined soda and the glacial acetic acid according to the mass ratio of 0.5:0.3:1, heating and boiling, then putting the mosquito net cloth fabric obtained in the step (2), standing for 15min at 100 ℃, and washing for 3 times by using deionized water to obtain a pretreated mosquito net cloth fabric;
(4) sequentially passing the pretreated mosquito net cloth fabric obtained in the step (3) through a rear winding roller, an organic glass cover inlet, a spray gun lower part, an organic glass cover outlet and a traction winding roller from left to right, and connecting an air compressor with the spray gun through a hose; spraying the after-finishing agent on the mosquito net by the spray gun from the square round hole on the glass cover to obtain the cool antibacterial mosquito net fabric.
Further, the preparation method of the alkyl biguanide salt in the step (1) comprises the following steps: dripping hydrochloric acid with the mass fraction of 38% and 1.04 times of the mass of N-cocoyl propylenediamine into a four-neck flask filled with a mixed solution of the N-cocoyl propylenediamine and isopropanol at the speed of 2mL/min, mixing the N-cocoyl propylenediamine and the isopropanol at the mass ratio of 1:0.2, stirring at the temperature of 50 ℃ for 1h at the speed of 150r/min, dripping a cyanamide aqueous solution with the mass fraction of 40.48% and the mass fraction of 1.44 times of the mass of the N-cocoyl propylenediamine at the speed of 2mL/min, heating to 130 ℃, reacting for 10h, rotationally evaporating for 4min at the speed of 250r/min, washing for 3 times with acetone, and drying to obtain the alkyl biguanide salt.
Further, the stretching multiple of the stretching heat setting machine in the step (2) is 1.4, the stretching temperature is 65 ℃, and the heat setting temperature is 130 ℃; the mechanical speed of the single needle bar warp knitting machine is 500rpm, and the weaving width is 4350 mm.
Further, the speed of the traction winding roller in the step (4) is 2cm/s, the spraying distance is 30cm, the air inlet pressure is 0.5MPa, and the spraying time is 20 s.
Further, the preparation method of the after-finishing agent in the step (4) comprises the following steps:
a. adding sodium laurate, cetyl trimethyl ammonium bromide which is 0.082 times of the mass of the sodium laurate and toluene which is 165.79 times of the mass of the sodium laurate into a three-neck flask, dripping epoxy chloropropane which is 0.83 times of the mass of the sodium laurate at the speed of 1mL/min, stirring at 200rpm for 2 hours at the temperature of 110 ℃, cooling to room temperature, and performing suction filtration to obtain glycidyl laurate;
b. adding polystyrene microspheres, sodium dodecyl sulfate with the mass of 0.005 time that of the polystyrene microspheres and deionized water with the mass of 25 times that of the polystyrene microspheres into a four-neck flask, and activating for 24 hours in a water bath at 30 ℃ and at a stirring speed of 120rpm to prepare a reaction solution;
c. b, mixing the glycidyl laurate obtained in the step a, toluene, benzoyl peroxide, sodium dodecyl sulfate and a polyvinyl alcohol aqueous solution with the mass fraction of 1% according to the mass ratio of 1:2.8:0.04:0.16:200, and ultrasonically crushing the mixture for 3 hours at 200w under the condition of ice-water bath to obtain a mixed solution; and (b) adding the mixed solution into the reaction solution obtained in the step (b), mixing the mixed solution and the reaction solution according to the volume ratio of 1:0.8, swelling for 24 hours in a 30 ℃ water bath and 120rpm mechanical stirring condition, adjusting the stirring speed to 250rpm, heating the water bath to 70 ℃ under the protection of nitrogen, reacting for 24 hours, performing suction filtration, washing with 60 ℃ deionized water until no foam exists, washing with industrial ethanol for 3 times, extracting for 72 hours in a Soxhlet extractor, performing suction filtration, washing with 60 ℃ deionized water for 7 times, washing with anhydrous ethanol until no toluene smell exists, and drying for 24 hours in a blast drier at 60 ℃ to obtain the finishing agent.
Example 2
A cool antibacterial mosquito net fabric mainly comprises the following components in parts by weight: 4 parts of after-finishing agent and 70 parts of mosquito net fabric.
A preparation method of a cool antibacterial mosquito net fabric mainly comprises the following preparation steps:
(1) mixing degreasing agent, sodium carbonate and glacial acetic acid according to the mass ratio of 0.5:0.3:1, heating and boiling, putting the mixture into the mosquito net fabric, standing for 15min at 100 ℃, and washing for 3 times by using deionized water to obtain a pretreated mosquito net fabric;
(2) sequentially passing the pretreated mosquito net cloth fabric obtained in the step (1) through a rear winding roller, an organic glass cover inlet, a spray gun lower part, an organic glass cover outlet and a traction winding roller from left to right, and connecting an air compressor with the spray gun through a hose; spraying the after-finishing agent on the mosquito net by the spray gun from the square round hole on the glass cover to obtain the cool antibacterial mosquito net fabric.
Further, the speed of the traction winding roller in the step (2) is 2cm/s, the spraying distance is 30cm, the air inlet pressure is 0.5MPa, and the spraying time is 20 s.
Further, the preparation method of the after-finishing agent in the step (2) comprises the following steps:
a. adding sodium laurate, cetyl trimethyl ammonium bromide which is 0.082 times of the mass of the sodium laurate and toluene which is 165.79 times of the mass of the sodium laurate into a three-neck flask, dripping epoxy chloropropane which is 0.83 times of the mass of the sodium laurate at the speed of 1mL/min, stirring at 200rpm for 2 hours at the temperature of 110 ℃, cooling to room temperature, and performing suction filtration to obtain glycidyl laurate;
b. adding polystyrene microspheres, sodium dodecyl sulfate with the mass of 0.005 time that of the polystyrene microspheres and deionized water with the mass of 25 times that of the polystyrene microspheres into a four-neck flask, and activating for 24 hours in a water bath at 30 ℃ and at a stirring speed of 120rpm to prepare a reaction solution;
c. b, mixing the glycidyl laurate obtained in the step a, toluene, benzoyl peroxide, sodium dodecyl sulfate and a polyvinyl alcohol aqueous solution with the mass fraction of 1% according to the mass ratio of 1:2.8:0.04:0.16:200, and ultrasonically crushing the mixture for 3 hours at 200w under the condition of ice-water bath to obtain a mixed solution; and (b) adding the mixed solution into the reaction solution obtained in the step (b), mixing the mixed solution and the reaction solution according to the volume ratio of 1:0.8, swelling for 24 hours in a 30 ℃ water bath and 120rpm mechanical stirring condition, adjusting the stirring speed to 250rpm, heating the water bath to 70 ℃ under the protection of nitrogen, reacting for 24 hours, performing suction filtration, washing with 60 ℃ deionized water until no foam exists, washing with industrial ethanol for 3 times, extracting for 72 hours in a Soxhlet extractor, performing suction filtration, washing with 60 ℃ deionized water for 7 times, washing with anhydrous ethanol until no toluene smell exists, and drying for 24 hours in a blast drier at 60 ℃ to obtain the finishing agent.
Example 3
A cool antibacterial mosquito net fabric mainly comprises the following components in parts by weight: 4 parts of glycidyl laurate and 70 parts of mosquito net fabric.
A preparation method of a cool antibacterial mosquito net fabric mainly comprises the following preparation steps:
(1) mixing polyamide and alkyl biguanide salt according to the mass ratio of 1:0.2, placing the mixture in a reaction kettle, adding deionized water with the mass of 1.5 times that of the polyamide and adipic acid with the mass of 0.05 times that of the polyamide, heating to 90 ℃, reacting for 20min, heating to 250 ℃, reacting in a nitrogen atmosphere, heating to 280 ℃ when water vapor is discharged, and reacting for 2h to obtain a modified polyamide polymer;
(2) preparing pre-oriented yarns from the modified polyamide polymer obtained in the step (1) on a melt spinning machine, wherein the spinning speed is 3000 m/min; placing the pre-oriented yarns on a stretching heat-setting machine to prepare modified polyamide fibers, and preparing the mosquito net fabric by a single-needle bed warp knitting machine, wherein the mesh number of a unit area is 25 holes/cm2；
(3) Mixing the degreasing agent, the calcined soda and the glacial acetic acid according to the mass ratio of 0.5:0.3:1, heating and boiling, then putting the mosquito net cloth fabric obtained in the step (2), standing for 15min at 100 ℃, and washing for 3 times by using deionized water to obtain a pretreated mosquito net cloth fabric;
(4) sequentially passing the pretreated mosquito net cloth fabric obtained in the step (3) through a rear winding roller, an organic glass cover inlet, a spray gun lower part, an organic glass cover outlet and a traction winding roller from left to right, and connecting an air compressor with the spray gun through a hose; spraying glycidyl laurate onto the mosquito net by a spray gun from the round hole on the glass cover to obtain the cool antibacterial mosquito net fabric.
Further, the preparation method of the alkyl biguanide salt in the step (1) comprises the following steps: dripping hydrochloric acid with the mass fraction of 38% and 1.04 times of the mass of N-cocoyl propylenediamine into a four-neck flask filled with a mixed solution of the N-cocoyl propylenediamine and isopropanol at the speed of 2mL/min, mixing the N-cocoyl propylenediamine and the isopropanol at the mass ratio of 1:0.2, stirring at the temperature of 50 ℃ for 1h at the speed of 150r/min, dripping a cyanamide aqueous solution with the mass fraction of 40.48% and the mass fraction of 1.44 times of the mass of the N-cocoyl propylenediamine at the speed of 2mL/min, heating to 130 ℃, reacting for 10h, rotationally evaporating for 4min at the speed of 250r/min, washing for 3 times with acetone, and drying to obtain the alkyl biguanide salt.
Further, the stretching multiple of the stretching heat setting machine in the step (2) is 1.4, the stretching temperature is 65 ℃, and the heat setting temperature is 130 ℃; the mechanical speed of the single needle bar warp knitting machine is 500rpm, and the weaving width is 4350 mm.
Further, the speed of the traction winding roller in the step (4) is 2cm/s, the spraying distance is 30cm, the air inlet pressure is 0.5MPa, and the spraying time is 20 s.
Further, the preparation method of glycidyl laurate in the step (4) comprises the following steps: adding sodium laurate, cetyl trimethyl ammonium bromide which is 0.082 times of the mass of the sodium laurate and toluene which is 165.79 times of the mass of the sodium laurate into a three-neck flask, dripping epoxy chloropropane which is 0.83 times of the mass of the sodium laurate at the speed of 1mL/min, stirring at 200rpm for 2h at the temperature of 110 ℃, cooling to room temperature, and performing suction filtration to obtain the glycidyl laurate.
Comparative example
A cool antibacterial mosquito net fabric mainly comprises the following components in parts by weight: 4 parts of glycidyl laurate and 70 parts of mosquito net fabric.
A preparation method of a cool antibacterial mosquito net fabric mainly comprises the following preparation steps:
(1) mixing degreasing agent, sodium carbonate and glacial acetic acid according to the mass ratio of 0.5:0.3:1, heating and boiling, putting the mixture into the mosquito net fabric, standing for 15min at 100 ℃, and washing for 3 times by using deionized water to obtain a pretreated mosquito net fabric;
(2) sequentially passing the pretreated mosquito net cloth fabric obtained in the step (2) through a rear winding roller, an organic glass cover inlet, a spray gun lower part, an organic glass cover outlet and a traction winding roller from left to right, and connecting an air compressor with the spray gun through a hose; spraying the after-finishing agent on the mosquito net by the spray gun from the square round hole on the glass cover to obtain the cool antibacterial mosquito net fabric.
Further, the speed of the traction winding roller in the step (2) is 2cm/s, the spraying distance is 30cm, the air inlet pressure is 0.5MPa, and the spraying time is 20 s.
Further, the preparation method of the glycidyl laurate in the step (2) comprises the following steps: adding sodium laurate, cetyl trimethyl ammonium bromide which is 0.082 times of the mass of the sodium laurate and toluene which is 165.79 times of the mass of the sodium laurate into a three-neck flask, dripping epoxy chloropropane which is 0.83 times of the mass of the sodium laurate at the speed of 1mL/min, stirring at 200rpm for 2h at the temperature of 110 ℃, cooling to room temperature, and performing suction filtration to obtain the glycidyl laurate.
Examples of effects
Table 1 below gives the results of performance analysis of the cool antibacterial mosquito net fabric using examples 1 to 3 of the present invention and comparative example.
TABLE 1
| Example 1 | Example 2 | Example 3 | Comparative example | |
| Antibacterial ratio (%) | 90.5 | 70.5 | 88.3 | 61.1 |
| Temperature after 10min (. degree. C.) | 30 | 43 | 60 | 76 |
| Temperature after 20min (. degree. C.) | 42 | 58 | 75 | 80 |
| Temperature after 30min (. degree. C.) | 55 | 66 | 84 | 87 |
| Antibacterial ratio (%) after washing 15 times | 90.4 | 64.3 | 84.9 | 55.4 |
| Temperature (. degree.C.) after washing 15 times with water | 30 | 44 | 62 | 78 |
| Antibacterial ratio after washing 30 times (%) | 90.3 | 57.9 | 73.2 | 49.9 |
| Temperature (. degree.C.) after washing 30 times with water | 30 | 51 | 79 | 81 |
| Antibacterial ratio after washing 50 times (%) | 90.3 | 51.3 | 67.9 | 45.0 |
| Temperature (. degree.C.) after washing 50 times with water | 30 | 73 | 84 | 88 |
From the comparison of the experimental data of example 1 and the comparative example, it can be found that the antibacterial rate of example 1 is high, the temperature is low under long-term irradiation, and after multiple times of water washing, the antibacterial rate and the temperature are unchanged, which indicates that the polyamide is modified by the alkyl biguanide salt, and guanidine groups are introduced into the molecular chain to enhance the antibacterial property of the modified polyamide fiber; the microporous structure on the surface of the glycidyl laurate microsphere can scatter sunlight and prevent heat flow from passing through, and meanwhile, the glycidyl laurate microsphere and the alkyl biguanide salt both contain long-chain alkyl, so that the fabric has hydrophobicity, and can keep good antibacterial property and heat insulation property after being washed for many times; from the comparison of the experimental data of the embodiment 1 and the embodiment 2, it can be found that the antibacterial rate of the embodiment 2 is low, and after a plurality of times of water washing, the antibacterial rate is reduced, which indicates that the polyamide is not modified by the alkyl biguanide salt, the polyamide molecular chain does not contain an antibacterial group guanidine group and a hydrophobic group, and meanwhile, the adhesiveness of the alkyl biguanide salt is avoided, so that less glycidyl laurate microspheres are adhered to the surface of the fabric, and after a plurality of times of water washing, the heat insulation layer on the surface of the fabric is damaged; from the comparison of the experimental data of example 1 and example 3, it can be seen that the temperature of example 3 is higher under long-term irradiation, which indicates that the light reflection capability is not provided by using the glycidyl laurate microspheres and directly using the glycidyl laurate, and the glycidyl laurate is a translucent liquid and has no hiding power on the fabric, so that the direct irradiation of the light source cannot be blocked.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The cool antibacterial mosquito net fabric is characterized by mainly comprising 2-6 parts by weight of after-finishing agent and 50-80 parts by weight of mosquito net fabric, wherein the after-finishing agent is glycidyl laurate microspheres prepared by taking polystyrene microspheres as templates and toluene as a pore-making agent; the mosquito net fabric is made of modified polyamide fibers by warp knitting; the modified polyamide is prepared by polymerizing alkyl biguanide salt and polyamide; the alkyl biguanide salts are prepared from N-cocoyl propylenediamine and cyanamide.
2. The cool antibacterial mosquito net fabric according to claim 1, which comprises the following raw material components in parts by weight: 4 parts of after-finishing agent and 70 parts of mosquito net fabric.
3. A preparation method of a cool antibacterial mosquito net fabric is characterized by mainly comprising the following preparation steps:
(1) mixing polyamide and alkyl biguanide salt according to the mass ratio of 1:0.2, placing the mixture in a reaction kettle, adding deionized water with the mass of 1.5 times that of the polyamide and adipic acid with the mass of 0.05 times that of the polyamide, heating to 90 ℃, reacting for 10-20 min, heating to 250 ℃, reacting in a nitrogen atmosphere, heating to 280 ℃ when water vapor is discharged, and reacting for 2h to obtain a modified polyamide polymer;
(2) preparing pre-oriented yarns from the modified polyamide polymer obtained in the step (1) on a melt spinning machine, wherein the spinning speed is 3000 m/min; placing the pre-oriented yarns on a stretching heat-setting machine to prepare modified polyamide fibers, and preparing the mosquito net fabric by a single-needle bed warp knitting machine, wherein the mesh number of a unit area is 25 holes/cm2；
(3) Mixing the degreasing agent, the calcined soda and the glacial acetic acid according to the mass ratio of 0.5:0.3:1, heating and boiling, then putting the mixture into the mosquito net cloth fabric obtained in the step (2), standing the mixture for 15min at 100 ℃, and washing the mixture for 2-3 times by using deionized water to obtain a pretreated mosquito net cloth fabric;
(4) sequentially passing the pretreated mosquito net cloth fabric obtained in the step (3) through a rear winding roller, an organic glass cover inlet, a spray gun lower part, an organic glass cover outlet and a traction winding roller from left to right, and connecting an air compressor with the spray gun through a hose; spraying the after-finishing agent on the mosquito net by the spray gun from the square round hole on the glass cover to obtain the cool antibacterial mosquito net fabric.
4. The preparation method of the cool antibacterial mosquito net fabric according to claim 3, wherein the alkyl biguanide salt in the step (1) is prepared by the following steps: dripping hydrochloric acid with the mass fraction of 38% and 1.04 times of the mass of N-cocoyl propylenediamine into a four-neck flask filled with a mixed solution of the N-cocoyl propylenediamine and isopropanol at the speed of 2mL/min, mixing the N-cocoyl propylenediamine and the isopropanol at the mass ratio of 1:0.2, stirring at the temperature of 50 ℃ for 1h at the speed of 150r/min, dripping a cyanamide aqueous solution with the mass fraction of 40.48% and the mass fraction of 1.44 times of the mass of the N-cocoyl propylenediamine at the speed of 2mL/min, heating to 130 ℃, reacting for 10h, rotationally evaporating at the speed of 200-250 r/min for 4-5 min, washing with acetone for 3 times, and drying to obtain the alkyl biguanide salt.
5. The preparation method of the cool antibacterial mosquito net fabric according to claim 4, wherein in the step (2), the stretching heat-setting machine has a stretching ratio of 1.4-1.8, a stretching temperature of 65-105 ℃, and a heat-setting temperature of 110-170 ℃; the mechanical speed of the single needle bar warp knitting machine is 250-500 rpm, and the weaving width is 4350 mm.
6. The method for preparing the cool antibacterial mosquito net fabric according to claim 5, wherein the speed of the traction roller in the step (4) is 2cm/s, the spraying distance is 30cm, the air inlet pressure is 0.5MPa, and the spraying time is 20 s.
7. The preparation method of the cool antibacterial mosquito net fabric according to claim 6, wherein the preparation method of the after-finishing agent in the step (4) is as follows:
a. adding sodium laurate, cetyl trimethyl ammonium bromide which is 0.082 times of the mass of the sodium laurate and toluene which is 165.79 times of the mass of the sodium laurate into a three-neck flask, dripping epoxy chloropropane which is 0.83 times of the mass of the sodium laurate at the speed of 1mL/min, stirring at 200rpm for 2 hours at the temperature of 110 ℃, cooling to room temperature, and performing suction filtration to obtain glycidyl laurate;
b. adding polystyrene microspheres, sodium dodecyl sulfate with the mass of 0.005 time that of the polystyrene microspheres and deionized water with the mass of 25 times that of the polystyrene microspheres into a four-neck flask, and activating for 24 hours in a water bath at 30 ℃ and at a stirring speed of 120rpm to prepare a reaction solution;
c. mixing the glycidyl laurate obtained in the step a, toluene, benzoyl peroxide, sodium dodecyl sulfate and a polyvinyl alcohol aqueous solution with the mass fraction of 1% according to the mass ratio of 1:2.8:0.04:0.16:200, and ultrasonically crushing the mixture for 2-3 hours at 200w under the condition of ice-water bath to obtain a mixed solution; and (b) adding the mixed solution into the reaction solution obtained in the step (b), mixing the mixed solution and the reaction solution according to the volume ratio of 1:0.8, swelling for 24 hours under the conditions of 30 ℃ water bath and 120rpm mechanical stirring, adjusting the stirring speed to 250rpm, heating to 70 ℃ water bath under the protection of nitrogen, reacting for 24 hours, performing suction filtration, washing with 60 ℃ deionized water until no foam exists, washing with industrial ethanol for 3 times, extracting for 72 hours in a Soxhlet extractor, performing suction filtration, washing with 60 ℃ deionized water for 7-8 times, washing with anhydrous ethanol until no toluene smell exists, drying for 24 hours in a blast drier at 60 ℃, and thus obtaining the after-finishing agent.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB642989A (en) * | 1947-07-02 | 1950-09-13 | Gen Aniline & Film Corp | Acyl polyalkylene-polyamine biguanides |
| CN1569923A (en) * | 2003-07-23 | 2005-01-26 | 上海塑杰科技有限公司 | Polyamine guanidine salt copolymer and its uses in antibiotic polyester and polyamide materials |
| CN106243361A (en) * | 2016-08-17 | 2016-12-21 | 华东理工大学 | The preparation method of antibacterial guanidine salt copolymer and the application of antibacterial guanidine salt copolymer |
| CN106364031A (en) * | 2016-08-26 | 2017-02-01 | 江阴市瀚新纺织有限公司 | Fabric spray-coated with photo-catalyst and preparation method thereof |
| CN108689888A (en) * | 2018-05-16 | 2018-10-23 | 中国日用化学研究院有限公司 | A kind of two guanidine salt of alkyl and preparation method thereof |
| CN111560672A (en) * | 2020-04-05 | 2020-08-21 | 华中科技大学 | Radiation refrigeration functional composite yarn and preparation method of fabric thereof |
| CN112522834A (en) * | 2020-11-26 | 2021-03-19 | 安徽和邦纺织科技有限公司 | Gauze fabric prepared from fibers with mosquito repelling function and preparation process thereof |
| CN112721375A (en) * | 2020-12-29 | 2021-04-30 | 松湖神健科技(东莞)有限公司 | Radiation refrigeration composite fabric, preparation method and device |
| CN112961343A (en) * | 2021-02-19 | 2021-06-15 | 上海凯赛生物技术股份有限公司 | Pentanediamine guanidine phosphate oligomer, preparation method thereof and antibacterial polymer prepared from pentanediamine guanidine phosphate oligomer |
-
2021
- 2021-09-10 CN CN202111058647.6A patent/CN113502660B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB642989A (en) * | 1947-07-02 | 1950-09-13 | Gen Aniline & Film Corp | Acyl polyalkylene-polyamine biguanides |
| CN1569923A (en) * | 2003-07-23 | 2005-01-26 | 上海塑杰科技有限公司 | Polyamine guanidine salt copolymer and its uses in antibiotic polyester and polyamide materials |
| CN106243361A (en) * | 2016-08-17 | 2016-12-21 | 华东理工大学 | The preparation method of antibacterial guanidine salt copolymer and the application of antibacterial guanidine salt copolymer |
| CN106364031A (en) * | 2016-08-26 | 2017-02-01 | 江阴市瀚新纺织有限公司 | Fabric spray-coated with photo-catalyst and preparation method thereof |
| CN108689888A (en) * | 2018-05-16 | 2018-10-23 | 中国日用化学研究院有限公司 | A kind of two guanidine salt of alkyl and preparation method thereof |
| CN111560672A (en) * | 2020-04-05 | 2020-08-21 | 华中科技大学 | Radiation refrigeration functional composite yarn and preparation method of fabric thereof |
| CN112522834A (en) * | 2020-11-26 | 2021-03-19 | 安徽和邦纺织科技有限公司 | Gauze fabric prepared from fibers with mosquito repelling function and preparation process thereof |
| CN112721375A (en) * | 2020-12-29 | 2021-04-30 | 松湖神健科技(东莞)有限公司 | Radiation refrigeration composite fabric, preparation method and device |
| CN112961343A (en) * | 2021-02-19 | 2021-06-15 | 上海凯赛生物技术股份有限公司 | Pentanediamine guanidine phosphate oligomer, preparation method thereof and antibacterial polymer prepared from pentanediamine guanidine phosphate oligomer |
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