CN112227072A - Special acid and alkali resistant fabric for special clothes and processing technology thereof - Google Patents

Special acid and alkali resistant fabric for special clothes and processing technology thereof Download PDF

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CN112227072A
CN112227072A CN202011057081.0A CN202011057081A CN112227072A CN 112227072 A CN112227072 A CN 112227072A CN 202011057081 A CN202011057081 A CN 202011057081A CN 112227072 A CN112227072 A CN 112227072A
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special
magnetic material
base cloth
acid
graphene oxide
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CN112227072B (en
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周建萍
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Fujian Septwolves Industry Co Ltd
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周建萍
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/55—Epoxy resins
    • 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
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D06M10/025—Corona discharge or low temperature plasma
    • 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
    • D06M11/32—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/49—Oxides or hydroxides of elements of Groups 8, 9,10 or 18 of the Periodic Table; Ferrates; Cobaltates; Nickelates; Ruthenates; Osmates; Rhodates; Iridates; Palladates; Platinates
    • 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
    • D06M11/73—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 carbon or compounds thereof
    • D06M11/74—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 carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
    • 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
    • D06M13/322—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 nitrogen
    • D06M13/325—Amines
    • D06M13/335—Amines having an amino group bound to a carbon atom of a six-membered aromatic ring
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    • 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
    • D06M15/61—Polyamines polyimines
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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
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • D06M2101/36—Aromatic polyamides

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  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
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  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention discloses an acid and alkali resistant fabric special for special clothing and a processing technology thereof, wherein the acid and alkali resistant fabric comprises a pretreated base cloth and a surface modifier, wherein the pretreated base cloth is an aramid fiber base cloth of which the surface is treated by oxygen plasma, and the oxygen plasma surface treatment can promote the free radicals on the surface of the aramid fiber base cloth to have the functions of cracking, oxidation, transfer and the like, so that a large number of oxygen-containing active groups are generated, and the oxygen-containing active groups can be chemically bonded with epoxy groups in epoxy resin, so that the interface cohesiveness of the aramid fiber base cloth and the epoxy resin is improved; the manufacturing method is reasonable in process design and simple in operation, the prepared fabric has excellent corrosion resistance and acid and alkali resistance, meanwhile, the fabric can also realize excellent electromagnetic shielding performance, can be applied to multiple fields, and has high practicability.

Description

Special acid and alkali resistant fabric for special clothes and processing technology thereof
Technical Field
The invention relates to the technical field of fabrics, in particular to an acid and alkali resistant fabric special for special clothes and a processing technology thereof.
Background
The special clothes refer to clothes with special functions or special purposes, and are used in occasions with special requirements during working, such as acid-proof clothes, fireproof clothes, oil-resistant and water-resistant clothes, antistatic clothes, flame-retardant clothes, welding protective clothes, arc-proof clothes and the like.
In some research and development workshops, operators often need to contact with some acidic or alkaline liquids, and meanwhile need to contact with electromagnetic waves for a long time when the workshops work.
Based on the situation, the special acid and alkali resistant fabric for the special clothes and the processing technology thereof are disclosed to solve the problem.
Disclosure of Invention
The invention aims to provide an acid and alkali resistant fabric special for special clothing and a processing technology thereof, and aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the acid and alkali resistant fabric special for the special clothes is prepared by modifying pretreated base cloth and a surface modifier.
According to an optimized scheme, the surface modifier comprises the following raw materials in parts by weight: by weight, 20-40 parts of epoxy resin, 10-15 parts of polyaniline, 10-15 parts of m-phenylenediamine, 30-40 parts of aminated magnetic material, 10-20 parts of modified graphene oxide, 1-3 parts of dispersing agent, 0.5-1 part of defoaming agent and 2-4 parts of thickening agent.
According to an optimized scheme, the pretreated base cloth is aramid fiber base cloth with the surface treated by oxygen plasma.
According to an optimized scheme, the aminated magnetic material is mainly prepared from a magnetic material, toluene, ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine.
According to an optimized scheme, the magnetic material is mainly prepared from barium chloride dihydrate, zinc chloride, ferric chloride hexahydrate, urea, carbon nano tubes and dopamine.
According to an optimized scheme, the modified graphene oxide is mainly prepared by reacting graphene oxide, DMF (dimethyl formamide), potassium iodide and epichlorohydrin.
A processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
1) preparing raw materials;
2) preparing a magnetic material;
3) preparing an aminated magnetic material;
4) preparing modified graphene oxide;
5) pretreating aramid fiber base cloth to obtain pretreated base cloth;
6) preparing a surface modifier from epoxy resin, polyaniline, m-phenylenediamine, an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, and dipping the pretreated base cloth to obtain a finished fabric product.
The optimized scheme comprises the following steps:
1) preparing raw materials;
2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating, placing the mixture in a high-pressure reaction kettle, carrying out sealed reaction at 180 ℃ in 170-plus-one temperature, cooling to room temperature, carrying out centrifugal separation, washing and drying, placing the dried mixture in a nitrogen environment, and calcining at 560 ℃ in 550-plus-one temperature to obtain a material A;
3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation, adding a Tris solution, adjusting the pH value with dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting at 25-28 ℃, carrying out suction filtration, washing and drying to obtain a magnetic material;
4) stirring the magnetic material and toluene at the water bath temperature of 60-65 ℃, ultrasonically dispersing, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, stirring for reaction, adding ethanol in the reaction process, filtering and separating after the reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
5) taking graphene oxide and DMF, performing ultrasonic dispersion, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, performing reflux reaction at the temperature of 100 ℃ and 105 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
6) placing aramid fiber base cloth in an acetone solution, carrying out ultrasonic cleaning, deionized water cleaning, drying, and then carrying out oxygen plasma treatment to obtain pretreated base cloth;
7) mixing and stirring epoxy resin, polyaniline and m-phenylenediamine, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, performing ultrasonic oscillation to obtain a surface modifier, adding pretreated base cloth, and performing immersion drying at 70-80 ℃ to obtain a finished product.
The optimized scheme comprises the following steps:
1) preparing raw materials;
2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 20-30min, placing the mixture in a high-pressure reaction kettle, hermetically reacting at 180 ℃ for 3-5h, cooling to room temperature, centrifugally separating, washing, drying, placing the mixture in a nitrogen environment, and calcining at 560 ℃ for 2-2.5h to obtain a material A;
3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 20-30min, adding a Tris solution, adjusting the pH to 8-9 with dilute hydrochloric acid, adding dopamine and a material A, carrying out stirring reaction for 10-12h at 25-28 ℃, carrying out suction filtration washing, and drying at a constant temperature of 60 ℃ to obtain a magnetic material;
4) stirring magnetic materials and toluene at the water bath temperature of 60-65 ℃ for 5-10min, performing ultrasonic dispersion for 20-30min, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, stirring for reaction for 2-2.5h, adding ethanol in the reaction process, filtering and separating after reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
5) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 10-15min, adding potassium iodide, stirring until the graphene oxide and the DMF are dissolved, adding epichlorohydrin, carrying out reflux reaction at the temperature of 100 ℃ and 105 ℃ for 12-14h, and centrifuging to remove precipitates to obtain modified graphene oxide;
6) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 20-30min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth;
7) mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 5-10min, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 20-30min to obtain a surface modifier, then putting the pretreated base fabric, dipping for 5-6h at 70-80 ℃, and drying at 100-110 ℃ to obtain a finished product.
In the optimized scheme, in the step 6), the parameters of the oxygen plasma treatment process are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 15-20min under the condition that the power is 600W.
Compared with the prior art, the invention has the following beneficial effects:
the application discloses an acid and alkali resistant fabric special for special clothing, which comprises a pretreated base cloth and a surface modifier, wherein the surface modifier is mainly prepared from components such as epoxy resin, polyaniline, m-phenylenediamine, an aminated magnetic material, modified graphene oxide, a dispersing agent and the like, the pretreated base cloth is aramid fiber base cloth of which the surface is treated by oxygen plasma, the surface treatment of the oxygen plasma can promote free radicals on the surface of the aramid fiber base cloth to have the effects of cracking, oxidation, transfer and the like, so that a large number of oxygen-containing active groups are generated, and the oxygen-containing active groups can be chemically bonded with epoxy groups in the epoxy resin, so that the interface cohesiveness of the aramid fiber base cloth and the epoxy resin is improved; meanwhile, grooves are formed in the surface of the aramid fiber base cloth after the oxygen plasma treatment, and the roughness is improved, so that the contact area between the surface modifier and the aramid fiber base cloth is further improved, and the interface bonding performance of the surface modifier and the aramid fiber base cloth is improved.
The polyaniline and the graphene oxide are added, and both have excellent corrosion resistance, so that the corrosion resistance of the surface of the fabric can be effectively improved, and the fabric is suitable for various environments such as acid washing or alkaline environment; this application still carries out modification treatment to graphite oxide, through graphite oxide, DMF, potassium iodide, epichlorohydrin reaction preparation obtains the modified functional graphene oxide of epoxy propyl, this modified graphene oxide's corrosion resisting property and acid and alkali resistance all are superior to ordinary graphite oxide far away, the acid and alkali resistance of the surface fabric that the preparation obtained also obtains further promotion, modified graphene oxide surface still contains the epoxy simultaneously, can take place chemical bonding with the oxygen-containing active group on preliminary treatment base cloth surface, thereby improve its adhesive property on preliminary treatment base cloth surface.
The invention also adds an aminated magnetic material which is mainly prepared from a magnetic material, toluene, ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, wherein the magnetic material is mainly prepared from barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate, urea, carbon nano tubes and dopamine.
Then, the carbon nano tube is subjected to dopamine surface treatment, and the carbon nano tube has poor dispersibility, has a great length-diameter ratio and high surface energy, and is easy to agglomerate and settle, so that a polydopamine layer is formed on the surface of the carbon nano tube for coating by dopamine, and a large number of active groups such as hydroxyl, carboxyl and the like are introduced while the dispersibility of the carbon nano tube is improved; the carbon nano tube with better dispersibility can improve the loading effect when the ferrite is loaded, and meanwhile, the dopamine has better adhesive property and can also improve the loading effect of the ferrite, so that the magnetic material loaded with the ferrite is prepared.
Then, the magnetic material is subjected to amination treatment, and the magnetic material is subjected to functional treatment through the components such as ethylenediamine, a toluene solution, dicyclohexylamine carbodiimide and dimethylaminopyridine, so that amino groups are introduced to the surface of the carbon nanotube and can react with epoxy groups in epoxy resin and modified graphene oxide, the interaction among the components in the surface modifier can be effectively improved, the interface compatibility between the epoxy resin and the components is promoted, and the overall effect of the surface modifier is greatly improved; meanwhile, active groups such as amino groups on the surface of the aminated magnetic material can be bonded with aramid fiber base cloth through hydrogen bonds, chemical bonds and the like, so that the bonding performance between the surface modifier and the pretreated base cloth is further improved, and the durability is excellent.
The application discloses special acid and alkali-resistant fabric for special clothing and a processing technology thereof, the process design is reasonable, the operation is simple, the prepared fabric has excellent corrosion resistance and acid and alkali resistance, meanwhile, the fabric can also realize excellent electromagnetic shielding performance, can be applied to a plurality of fields, and has high practicability.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example 1:
a processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
(1) preparing raw materials;
(2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 20min, placing the mixture in a high-pressure reaction kettle, hermetically reacting at 170 ℃ for 3h, cooling to room temperature, centrifugally separating, washing, drying, placing the mixture in a nitrogen environment, and calcining at 550 ℃ for 2h to obtain a material A;
(3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 20min, adding a Tris solution, adjusting the pH value to 8 by using dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting for 10h at 25 ℃, carrying out suction filtration and washing, and drying at constant temperature of 60 ℃ to obtain a magnetic material;
(4) stirring the magnetic material and toluene at the water bath temperature of 60 ℃ for 5min, performing ultrasonic dispersion for 20min, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, stirring for reaction for 2h, adding ethanol in the reaction process, filtering and separating after the reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
(5) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 10min, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, carrying out reflux reaction for 12h at 100 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
(6) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 20min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth; wherein the oxygen plasma treatment process parameters are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 15min under the condition that the power is 600W.
(7) Mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 5min, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 20min to obtain a surface modifier, adding pretreated base cloth, soaking for 5h at 70 ℃, and drying at 100 ℃ to obtain a finished product.
In this example, the surface modifier comprises the following raw materials: by weight, 20 parts of epoxy resin, 10 parts of polyaniline, 10 parts of m-phenylenediamine, 30 parts of aminated magnetic material, 10 parts of modified graphene oxide, 1 part of dispersing agent, 0.5 part of defoaming agent and 2 parts of thickening agent.
Example 2:
a processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
(1) preparing raw materials;
(2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 25min, placing the mixture in a high-pressure reaction kettle, sealing and reacting for 4h at 175 ℃, cooling to room temperature, centrifugally separating, washing and drying, placing the mixture in a nitrogen environment after drying, and calcining for 2.2h at 555 ℃ to obtain a material A;
(3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 25min, adding a Tris solution, adjusting the pH value to 8.5 by using dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting for 11h at 27 ℃, carrying out suction filtration and washing, and drying at constant temperature of 60 ℃ to obtain a magnetic material;
(4) stirring the magnetic material and toluene at a water bath temperature of 63 ℃ for 8min, performing ultrasonic dispersion for 25min, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, performing stirring reaction for 2.2h, adding ethanol in the reaction process, filtering and separating after the reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
(5) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 13min, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, carrying out reflux reaction for 13h at 102 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
(6) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 25min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth; wherein the oxygen plasma treatment process parameters are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 18min under the condition that the power is 600W.
(7) Mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 8min, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 25min to obtain a surface modifier, adding pretreated base cloth, soaking for 5.5h at 75 ℃, and drying at 105 ℃ to obtain a finished product.
In this example, the surface modifier comprises the following raw materials: by weight, 30 parts of epoxy resin, 12 parts of polyaniline, 12 parts of m-phenylenediamine, 35 parts of aminated magnetic material, 15 parts of modified graphene oxide, 2 parts of dispersing agent, 0.5-1 part of defoaming agent and 3 parts of thickening agent.
Example 3:
a processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
(1) preparing raw materials;
(2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 30min, placing the mixture in a high-pressure reaction kettle, sealing and reacting for 5h at 180 ℃, cooling to room temperature, centrifugally separating, washing and drying, placing the mixture in a nitrogen environment after drying, and calcining for 2.5h at 560 ℃ to obtain a material A;
(3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 30min, adding a Tris solution, adjusting the pH to 9 with dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting at 28 ℃ for 12h, carrying out suction filtration and washing, and drying at a constant temperature of 60 ℃ to obtain a magnetic material;
(4) stirring the magnetic material and toluene at a water bath temperature of 65 ℃ for 10min, ultrasonically dispersing for 30min, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, stirring for reacting for 2.5h, adding ethanol in the reaction process, filtering and separating after the reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
(5) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 15min, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, carrying out reflux reaction for 14h at 105 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
(6) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 30min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth; wherein the oxygen plasma treatment process parameters are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 20min under the condition that the power is 600W.
(7) Mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 10min, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 30min to obtain a surface modifier, adding pretreated base cloth, soaking for 6h at 80 ℃, and drying at 110 ℃ to obtain a finished product.
In this example, the surface modifier comprises the following raw materials: by weight, 40 parts of epoxy resin, 15 parts of polyaniline, 15 parts of m-phenylenediamine, 40 parts of aminated magnetic material, 20 parts of modified graphene oxide, 3 parts of dispersant, 1 part of defoaming agent and 4 parts of thickening agent.
Comparative example 1:
a processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
(1) preparing raw materials;
(2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 25min, placing the mixture in a high-pressure reaction kettle, sealing and reacting for 4h at 175 ℃, cooling to room temperature, centrifugally separating, washing and drying, placing the mixture in a nitrogen environment after drying, and calcining for 2.2h at 555 ℃ to obtain a material A;
(3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 25min, adding a Tris solution, adjusting the pH value to 8.5 by using dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting for 11h at 27 ℃, carrying out suction filtration and washing, and drying at constant temperature of 60 ℃ to obtain a magnetic material;
(4) stirring the magnetic material and toluene at a water bath temperature of 63 ℃ for 8min, performing ultrasonic dispersion for 25min, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, performing stirring reaction for 2.2h, adding ethanol in the reaction process, filtering and separating after the reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
(5) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 25min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth; wherein the oxygen plasma treatment process parameters are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 18min under the condition that the power is 600W.
(6) Mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 8min, adding an aminated magnetic material, graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 25min to obtain a surface modifier, adding pretreated base cloth, soaking for 5.5h at 75 ℃, and drying at 105 ℃ to obtain a finished product.
In this example, the surface modifier comprises the following raw materials: by weight, 30 parts of epoxy resin, 12 parts of polyaniline, 12 parts of m-phenylenediamine, 35 parts of aminated magnetic material, 15 parts of graphene oxide, 2 parts of dispersing agent, 0.5-1 part of defoaming agent and 3 parts of thickening agent.
Comparative example 2:
a processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
(1) preparing raw materials;
(2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 25min, placing the mixture in a high-pressure reaction kettle, sealing and reacting for 4h at 175 ℃, cooling to room temperature, centrifugally separating, washing and drying, placing the mixture in a nitrogen environment after drying, and calcining for 2.2h at 555 ℃ to obtain a material A;
(3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 25min, adding a Tris solution, adjusting the pH value to 8.5 by using dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting for 11h at 27 ℃, carrying out suction filtration and washing, and drying at constant temperature of 60 ℃ to obtain a magnetic material;
(4) stirring the magnetic material and toluene at a water bath temperature of 63 ℃ for 8min, performing ultrasonic dispersion for 25min, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, performing stirring reaction for 2.2h, adding ethanol in the reaction process, filtering and separating after the reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
(5) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 13min, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, carrying out reflux reaction for 13h at 102 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
(6) mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 8min, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 25min to obtain a surface modifier, adding aramid fiber base cloth, soaking for 5.5h at 75 ℃, and drying at 105 ℃ to obtain a finished product.
In this example, the surface modifier comprises the following raw materials: by weight, 30 parts of epoxy resin, 12 parts of polyaniline, 12 parts of m-phenylenediamine, 35 parts of aminated magnetic material, 15 parts of modified graphene oxide, 2 parts of dispersing agent, 0.5-1 part of defoaming agent and 3 parts of thickening agent.
Comparative example 3:
a processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
(1) preparing raw materials;
(2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 25min, placing the mixture in a high-pressure reaction kettle, sealing and reacting for 4h at 175 ℃, cooling to room temperature, centrifugally separating, washing and drying, placing the mixture in a nitrogen environment after drying, and calcining for 2.2h at 555 ℃ to obtain a material A;
(3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 25min, adding a Tris solution, adjusting the pH value to 8.5 by using dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting for 11h at 27 ℃, carrying out suction filtration and washing, and drying at constant temperature of 60 ℃ to obtain a magnetic material;
(4) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 13min, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, carrying out reflux reaction for 13h at 102 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
(5) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 25min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth; wherein the oxygen plasma treatment process parameters are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 18min under the condition that the power is 600W.
(6) Mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 8min, adding a magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 25min to obtain a surface modifier, adding pretreated base cloth, soaking for 5.5h at 75 ℃, and drying at 105 ℃ to obtain a finished product.
In this example, the surface modifier comprises the following raw materials: by weight, 30 parts of epoxy resin, 12 parts of polyaniline, 12 parts of m-phenylenediamine, 35 parts of magnetic material, 15 parts of modified graphene oxide, 2 parts of dispersing agent, 0.5-1 part of defoaming agent and 3 parts of thickening agent.
Comparative example 4:
a processing technology of an acid and alkali resistant fabric special for special clothing comprises the following steps:
(1) preparing raw materials;
(2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 25min, placing the mixture in a high-pressure reaction kettle, sealing and reacting for 4h at 175 ℃, cooling to room temperature, centrifugally separating, washing and drying, placing the mixture in a nitrogen environment after drying, and calcining for 2.2h at 555 ℃ to obtain a magnetic material;
(3) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 13min, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, carrying out reflux reaction for 13h at 102 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
(4) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 25min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth; wherein the oxygen plasma treatment process parameters are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 18min under the condition that the power is 600W.
(5) Mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 8min, adding a magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 25min to obtain a surface modifier, adding pretreated base cloth, soaking for 5.5h at 75 ℃, and drying at 105 ℃ to obtain a finished product.
In this example, the surface modifier comprises the following raw materials: by weight, 30 parts of epoxy resin, 12 parts of polyaniline, 12 parts of m-phenylenediamine, 35 parts of magnetic material, 15 parts of modified graphene oxide, 2 parts of dispersing agent, 0.5-1 part of defoaming agent and 3 parts of thickening agent.
And (3) detection test:
1. acid and alkali resistance: taking the fabric samples prepared in examples 1-3 and comparative examples 1-4, wherein the sample size is 20cm by 20cm in area, respectively soaking the fabric samples in an acid solution with pH of 3.5 and an alkaline solution with pH of 9.5 for 72 hours, and calculating the corrosion rate of the fabric, wherein the corrosion rate is the ratio of the corrosion area to the total area.
2. Electromagnetic shielding performance: the fabric samples prepared in examples 1-3 and comparative examples 1-4 were tested according to GJB 6190-.
The specific detection data are as follows:
Figure BDA0002711128650000111
examples 1-3 were prepared according to the disclosed technical scheme, and comparative examples 1-4 were compared with example 2 as a test group, specifically as follows:
1. in the comparative example 1, the process is changed by taking the example 2 as a control group, the graphene oxide is not modified in the comparative example 1, and the parameters and the component content of the rest steps are consistent with those of the example 2; in the comparative example 1, the graphene oxide is not modified, the acid and alkali resistance is greatly reduced, and the electromagnetic absorption rate is slightly reduced.
Comparative example 2, the process change is carried out by taking the example 2 as a control group, the oxygen plasma treatment is not carried out on the aramid fiber base cloth in the comparative example 2, and the parameters and the component content of the rest steps are consistent with those of the example 2; the comparative example 2 does not perform oxygen plasma treatment on the aramid fiber base cloth, and the acid and alkali resistance and the electromagnetic absorption rate of the fabric sample are greatly reduced due to the poor modification effect of the surface modifier.
Comparative example 3 a process change was made using example 2 as a control, and in comparative example 3 no magnetic material amination was performed, and the remaining process parameters and component contents were identical to those of example 2. Comparative example 3 does not perform amination of the magnetic material, compatibility between the magnetic material and each component is poor, and a decrease in electromagnetic absorption rate also occurs.
Comparative example 4 the process was changed by using example 2 and comparative example 3 as a control, in comparative example 4, the amination of the magnetic material was not performed, the modified carbon nanotube loading was not performed on the magnetic material, and the parameters and the component contents of the remaining steps were the same as those of example 2.
And (4) conclusion: the application discloses special acid and alkali-resistant fabric for special clothing and a processing technology thereof, the process design is reasonable, the operation is simple, the prepared fabric has excellent corrosion resistance and acid and alkali resistance, meanwhile, the fabric can also realize excellent electromagnetic shielding performance, can be applied to a plurality of fields, and has high practicability.
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 special acid and alkali resistant fabric for the special clothes is characterized in that: the fabric is prepared by modifying a pretreated base fabric and a surface modifier.
2. The acid and alkali resistant fabric special for special clothing according to claim 1, characterized in that: the surface modifier comprises the following raw materials in parts by weight: by weight, 20-40 parts of epoxy resin, 10-15 parts of polyaniline, 10-15 parts of m-phenylenediamine, 30-40 parts of aminated magnetic material, 10-20 parts of modified graphene oxide, 1-3 parts of dispersing agent, 0.5-1 part of defoaming agent and 2-4 parts of thickening agent.
3. The acid and alkali resistant fabric special for special clothing according to claim 1, characterized in that: the pretreated base cloth is aramid fiber base cloth with the surface treated by oxygen plasma.
4. The acid and alkali resistant fabric special for special clothing according to claim 2, characterized in that: the aminated magnetic material is mainly prepared from a magnetic material, toluene, ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine.
5. The acid and alkali resistant fabric special for special clothing according to claim 4, characterized in that: the magnetic material is mainly prepared from barium chloride dihydrate, zinc chloride, ferric chloride hexahydrate, urea, carbon nano tubes and dopamine.
6. The acid and alkali resistant fabric special for special clothing according to claim 2, characterized in that: the modified graphene oxide is mainly prepared by reacting graphene oxide, DMF (dimethyl formamide), potassium iodide and epichlorohydrin.
7. A processing technology of acid and alkali resistant fabric special for special clothing is characterized in that: the method comprises the following steps:
1) preparing raw materials;
2) preparing a magnetic material;
3) preparing an aminated magnetic material;
4) preparing modified graphene oxide;
5) pretreating aramid fiber base cloth to obtain pretreated base cloth;
6) preparing a surface modifier from epoxy resin, polyaniline, m-phenylenediamine, an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, and dipping the pretreated base cloth to obtain a finished fabric product.
8. The processing technology of the acid and alkali resistant fabric special for special clothing according to claim 7, characterized in that: the method comprises the following steps:
1) preparing raw materials;
2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating, placing the mixture in a high-pressure reaction kettle, carrying out sealed reaction at 180 ℃ in 170-plus-one temperature, cooling to room temperature, carrying out centrifugal separation, washing and drying, placing the dried mixture in a nitrogen environment, and calcining at 560 ℃ in 550-plus-one temperature to obtain a material A;
3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation, adding a Tris solution, adjusting the pH value with dilute hydrochloric acid, adding dopamine and a material A, stirring and reacting at 25-28 ℃, carrying out suction filtration, washing and drying to obtain a magnetic material;
4) stirring the magnetic material and toluene at the water bath temperature of 60-65 ℃, ultrasonically dispersing, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, stirring for reaction, adding ethanol in the reaction process, filtering and separating after the reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
5) taking graphene oxide and DMF, performing ultrasonic dispersion, adding potassium iodide, stirring until the potassium iodide is dissolved, adding epichlorohydrin, performing reflux reaction at the temperature of 100 ℃ and 105 ℃, and centrifuging to remove precipitates to obtain modified graphene oxide;
6) placing aramid fiber base cloth in an acetone solution, carrying out ultrasonic cleaning, deionized water cleaning, drying, and then carrying out oxygen plasma treatment to obtain pretreated base cloth;
7) mixing and stirring epoxy resin, polyaniline and m-phenylenediamine, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, performing ultrasonic oscillation to obtain a surface modifier, adding pretreated base cloth, and performing immersion drying at 70-80 ℃ to obtain a finished product.
9. The processing technology of the acid and alkali resistant fabric special for special clothing according to claim 8, characterized in that: the method comprises the following steps:
1) preparing raw materials;
2) mixing barium chloride dihydrate, zinc chloride, ferric trichloride hexahydrate and urea, adding deionized water and ethylene glycol, continuously stirring until the mixture is dissolved, ultrasonically oscillating for 20-30min, placing the mixture in a high-pressure reaction kettle, hermetically reacting at 180 ℃ for 3-5h, cooling to room temperature, centrifugally separating, washing, drying, placing the mixture in a nitrogen environment, and calcining at 560 ℃ for 2-2.5h to obtain a material A;
3) taking a carbon nano tube and deionized water, carrying out ultrasonic oscillation for 20-30min, adding a Tris solution, adjusting the pH to 8-9 with dilute hydrochloric acid, adding dopamine and a material A, carrying out stirring reaction for 10-12h at 25-28 ℃, carrying out suction filtration washing, and drying at a constant temperature of 60 ℃ to obtain a magnetic material;
4) stirring magnetic materials and toluene at the water bath temperature of 60-65 ℃ for 5-10min, performing ultrasonic dispersion for 20-30min, adding a toluene solution of ethylenediamine, dicyclohexylamine carbodiimide and dimethylaminopyridine, stirring for reaction for 2-2.5h, adding ethanol in the reaction process, filtering and separating after reaction, and sequentially washing the ethanol and water to obtain an aminated magnetic material;
5) taking graphene oxide and DMF, carrying out ultrasonic dispersion for 10-15min, adding potassium iodide, stirring until the graphene oxide and the DMF are dissolved, adding epichlorohydrin, carrying out reflux reaction at the temperature of 100 ℃ and 105 ℃ for 12-14h, and centrifuging to remove precipitates to obtain modified graphene oxide;
6) placing aramid fiber base cloth in an acetone solution, ultrasonically cleaning for 20-30min, cleaning with deionized water, drying, and then performing oxygen plasma treatment to obtain pretreated base cloth;
7) mixing and stirring epoxy resin, polyaniline and m-phenylenediamine for 5-10min, adding an aminated magnetic material, modified graphene oxide, a dispersing agent, a defoaming agent and a thickening agent, carrying out ultrasonic oscillation for 20-30min to obtain a surface modifier, then putting the pretreated base fabric, dipping for 5-6h at 70-80 ℃, and drying at 100-110 ℃ to obtain a finished product.
10. The processing technology of the acid and alkali resistant fabric special for special clothing according to claim 9, characterized in that: in the step 6), the parameters of the oxygen plasma treatment process are as follows: during treatment, the vacuum is pumped to 60Pa, oxygen is introduced, and the treatment is carried out for 15-20min under the condition that the power is 600W.
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