CN115418850A - Anti-wrinkle and anti-electric arc fabric and preparation method thereof - Google Patents

Anti-wrinkle and anti-electric arc fabric and preparation method thereof Download PDF

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CN115418850A
CN115418850A CN202210879647.0A CN202210879647A CN115418850A CN 115418850 A CN115418850 A CN 115418850A CN 202210879647 A CN202210879647 A CN 202210879647A CN 115418850 A CN115418850 A CN 115418850A
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fabric
mixing
resistant
mass ratio
deionized water
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杨宝萍
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    • D—TEXTILES; PAPER
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    • 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
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
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Abstract

The invention discloses a crease-resistant and arc-resistant fabric and a preparation method thereof, and relates to the technical field of fabrics. The preparation method comprises the steps of firstly utilizing 3,4-dichloro-1,2-epoxy-butane, trimethylamine hydrochloride and carboxylated cellulose nanocrystals to obtain cationic cellulose nanocrystals, mixing the cationic cellulose nanocrystals with hollow porous nano zinc oxide, infiltrating the mixture into swollen cotton fibers, and performing crosslinking to enable the fabric to have an anti-wrinkle effect; then silver is plated on the surface of the aramid fiber to form antistatic fiber, the antistatic fiber is blended with the modified cotton fiber to form an antistatic fabric substrate, and then bicyclo [2.2.2] octa-7-ene-2,3,5,6-tetracarboxylic acid is utilized to further generate crosslinking, so that the crease-resistant effect of the fabric is improved; then a heat-insulating and high-temperature-resistant aerogel layer is formed on the surface, and then a flame-retardant film is formed by using trimethoxysilylmethanethiol, 2- (3-butenyl) -2-oxazoline, 4,4', 4' -phosphoryltribenzoic acid and melamine, so that the fabric has the arc-proof performance under the synergistic action. The fabric prepared by the invention has the effects of crease resistance and arc resistance.

Description

Anti-wrinkle and anti-electric arc fabric and preparation method thereof
Technical Field
The invention relates to the technical field of fabrics, in particular to a crease-resistant and arc-resistant fabric and a preparation method thereof.
Background
With the progress of science and technology and the development of society, the textile technology in China is rapidly developed, and a great deal of novel textile fiber fabrics emerge therewith. The cotton-containing fabric has the advantages of softness, air permeability, comfort, coolness, sweat absorption and heat dissipation and the like, is deeply loved by consumers, but the cotton fiber is lack of elasticity, and when the fabric is taken out again after being folded and stored, wrinkles are easy to appear, the overall effect of the fabric is influenced, the grade of the fabric is not favorably improved, and the wearing effect of the clothes is seriously influenced.
The electric power industry is an important industry related to the national democracy, and safety is the first task of the electric power industry. The electric arc is a gas discharge phenomenon, has high generation speed, short duration and large total generated energy, and is very easy to cause great threat or injury to the personal safety of workers, such as serious burning and death. The existing arc prevention method mainly makes aramid fiber into an arc prevention fabric, but has limited protection effect and is easy to cause secondary damage.
Disclosure of Invention
The invention aims to provide a crease-resistant and arc-resistant fabric and a preparation method thereof, which aim to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: the crease-resistant and arc-resistant fabric comprises a fabric substrate and an aerogel layer, wherein the fabric substrate is prepared by blending modified cotton fibers and antistatic aramid fibers.
Further, the modified cotton fiber is prepared by a method comprising the steps of oxidizing microcrystalline cellulose by ammonium sulfate to obtain carboxylated cellulose nanocrystals, mixing the carboxylated cellulose nanocrystals with 3,4-dichloro-1,2-epoxy-butane, absolute ethyl alcohol and deionized water, and stirring for reaction to obtain pretreated nanocrystals; mixing and stirring trimethylamine and hydrochloric acid, adding the pretreated nanocrystal, and continuously stirring to obtain a cationic cellulose nanocrystal; then mixing and stirring the modified cotton fiber with nano zinc oxide, sequentially adding sodium hydroxide, pretreating the cotton fiber, and performing first supercritical treatment to obtain the modified cotton fiber.
Further, the antistatic aramid fiber is prepared by the following method that aramid 1414 is washed by acetone, mixed with silver nitrate, dimethyl sulfoxide and deionized water, taken out after water bath reaction, immersed in a sodium borohydride solution for a period of time, taken out, immersed in a silver plating solution, and stirred.
Further, the aerogel layer is prepared by the following method, the fabric substrate is immersed in a polybasic acid solution, and after the second supercritical treatment, the fabric substrate is dried and baked to obtain a fabric precursor; placing the fabric in the precursor solution, carrying out third supercritical treatment, aging, and carrying out ethanol supercritical drying to obtain an aerogel layer fabric; and then modified by trimethoxysilylmethanethiol, 2- (3-butenyl) -2-oxazoline, 4,4', 4' -phosphoryltribenzoic acid and melamine.
Further, the preparation method of the crease-resistant and arc-resistant fabric comprises the following preparation steps:
(1) Mixing 3,4-dichloro-1,2-epoxy-butane, anhydrous ethanol and deionized water according to a mass ratio of 1.5-1;
(2) Placing trimethylamine into a container, adding hydrochloric acid with the mass fraction of 38% until the pH value of the solution is 7-7.5, stirring at 50-70 rpm for 1-3 h, adding pretreated nanocrystalline with the mass of 0.60-0.74 times of that of the trimethylamine, continuously stirring at 25-35 ℃ for 2-5 h, performing suction filtration, washing with acetone for 5-7 times, and drying at 50-62 ℃ for 18-22 h to obtain cationic cellulose nanocrystalline;
(3) Mixing a cationic cellulose nanocrystal, nano zinc oxide and deionized water according to a mass ratio of 1.0;
(4) Blending the modified cotton fiber and the antistatic aramid fiber according to the mass ratio of 1.5-1:1, and weaving to obtain the antistatic aramid fiber with the gram weight of 200-220 g/m 2 The fabric substrate of (1); soaking the fabric substrate in a polybasic acid solution with the mass of 20-25 times that of the fabric substrate, and bicyclo [2.2.2] in the polybasic acid solution]The weight ratio of octa-7-ene-2,3,5,6-tetracarboxylic acid, sodium hypophosphite and deionized water is 1;
(5) Mixing aluminum sec-butoxide, absolute ethyl alcohol and deionized water according to a mass ratio of 1; adding a fabric precursor with 2-4 times of the mass of the precursor liquid, stirring at 60-70 ℃ and 80-100 rpm for 50-70 min, heating to 60-80 ℃ under the atmosphere of carbon dioxide, heating to 80-90 ℃, standing for 40-60 min under the pressure of 8-15 MPa, taking out, standing for 24-28 h at room temperature, and treating at 238-245 ℃ and 6-8 MPa for 6-9 h under the atmosphere of ethanol to obtain the aerogel layer fabric;
(6) Mixing aerogel layer fabric, deionized water, absolute ethyl alcohol and trimethoxysilyl methyl mercaptan according to a mass ratio of 1; mixing a sulfhydrylation fabric, toluene, 2- (3-butenyl) -2-oxazoline, 2,2-dimethoxy-2-phenylacetophenone according to the mass ratio of 1;
(7) Mixing 4,4', 4' -phosphoryl tribenzoic acid and tetrahydrofuran according to a mass ratio of 1.
Further, the preparation method of the carboxylated cellulose nanocrystal in the step (1) comprises the following steps: mixing microcrystalline cellulose, ammonium persulfate and deionized water according to a mass ratio of 1.9.
Further, the preparation method of the nano zinc oxide in the step (3) comprises the following steps: mixing hexamethylenetetramine, distilled water, zinc nitrate and sodium citrate according to the mass ratio of 1.0.
Further, the preparation method of the pretreated cotton fiber in the step (3) comprises the following steps: mixing deionized water, sodium hydroxide and urea according to the mass ratio of 7.1.
Further, the preparation method of the antistatic aramid fiber in the step (4) comprises the following steps: placing aramid fiber 1414 in acetone with the mass of 7-10 times of that of aramid fiber 1414, soaking for 20-24 h, performing suction filtration, washing for 5-9 min with deionized water, mixing with silver nitrate, dimethyl sulfoxide and deionized water according to the mass ratio of 1.
Further, the silver plating solution is 10g/L of silver nitrate, 17g/L of ethylene diamine tetraacetic acid, 12.5mL/L of ethylenediamine, 39g/L of sodium potassium tartrate, 20mL/L of ethanol, 8978 mg/L of polyethylene glycol, 8978 mg/L of zxft 8978 mg/L of sodium hydroxide, and the balance of water.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes modified cotton fiber and antistatic aramid fiber to mix and spin a fabric substrate, carries out secondary and tertiary supercritical treatment to obtain an aerogel layer, and then carries out surface modification to realize the effects of crease resistance and arc resistance.
Firstly, carboxylating cellulose nanocrystals, reacting the cellulose nanocrystals with 3,4-dichloro-1,2-chloride ions of epoxy-butane, and then opening the epoxy groups by trimethylamine hydrochloride to obtain cationic cellulose nanocrystals; the method comprises the following steps of adsorbing cationic cellulose nanocrystals by using hollow porous nano zinc oxide, performing first supercritical treatment, enabling the cationic cellulose nanocrystals to permeate into swollen cotton fibers, opening hydrogen bonds in cotton fiber chains by zinc-oxygen bonds, enabling the cotton fibers and the cationic cellulose nanocrystals to generate chain crosslinking, and enabling hydroxyl groups of the cationic cellulose nanocrystals to form epoxy groups under an alkaline condition and generate ring-opening crosslinking with the hydroxyl groups of the cotton fibers, so that the fiber strength is improved, the fabric has an anti-wrinkle effect, meanwhile, the nano zinc oxide fills gaps between rough parts of the cotton fibers, the smoothness of the fabric is improved, and the anti-wrinkle property of the fabric is improved; after the fabric substrate is manufactured, the second supercritical treatment is carried out, bicyclo [2.2.2] octa-7-ene-2,3,5,6-tetracarboxylic acid permeates into the fabric substrate, carboxyl of the bicyclo [2.2.2] octa-7-ene-2,3,5,6-tetracarboxylic acid respectively generates a cross-linking reaction with hydroxyl of modified fiber and positive charges of cationic cellulose nanocrystals, a complex three-dimensional network structure is formed, the anti-wrinkle effect of the fabric is improved, in addition, bicyclo [2.2.2] octa-7-ene-2,3,5,6-tetracarboxylic acid contains double bonds, the volume can be increased in space, the acting force between a compound and base cloth is further increased, and the anti-wrinkle effect of the fabric is improved.
Secondly, performing chemical silver plating treatment on the surface of the aramid fiber to form antistatic fiber, blending the antistatic fiber with the modified cotton fiber, and performing combined action of zinc oxide and silver to form an antistatic fabric substrate, so that the risk of electric arc explosion caused by static electricity generated by fiber friction is reduced, and the fabric has an electric arc prevention effect; then carrying out third supercritical treatment, immersing the alumina sol into the fabric, filling a hollow structure of nano zinc oxide, winding and wrapping fibers, closely crosslinking with the fabric substrate, and carrying out ethanol supercritical drying to form a heat-insulating and high-temperature-resistant aerogel layer so as to improve the arc resistance of the fabric; then, a silicon-oxygen bond of trimethoxysilylmethanethiol is grafted on the surface of the aerogel, under the action of ultraviolet light, a sulfydryl group of the trimethoxysilylmethanethiol reacts with a double bond of 2- (3-butenyl) -2-oxazoline, and then a carboxyl group of 4,4', 4' -phosphoryltribenzoic acid reacts with an oxazoline group and an amino group of melamine, so that a flame-retardant film is formed on the surface, and the flame-retardant film rapidly expands into a carbon layer when meeting high-heat flame caused by electric arc, thereby playing a role in protection, and further minimizing the contact damage of human skin and electric arc heat energy.
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.
In order to more clearly illustrate the method provided by the invention, the following examples are used for detailed description, and the test method of each index of the crease-resistant arc-proof fabric manufactured in the following examples is as follows:
wrinkle resistance: the wrinkle resistance effect test was performed on the same size examples and comparative examples, and the recovery angle was measured with reference to GB/T3819.
Arc resistance: the examples and the comparative examples with the same size are taken to carry out the electric arc prevention and flame retardant effect tests, the electric arc protection performance is measured by referring to DL/T320, and the vertical burning performance of the fabric is measured by referring to GB 8965.1.
Example 1
(1) Mixing microcrystalline cellulose, ammonium persulfate and deionized water according to a mass ratio of 1.9; mixing 3,4-dichloro-1,2-epoxy-butane, absolute ethyl alcohol and deionized water according to a mass ratio of 1;
(2) Placing trimethylamine into a container, adding hydrochloric acid with the mass fraction of 38% until the pH value of the solution is 7, stirring at 50rpm for 1h, adding pretreated nanocrystalline with the mass of 0.6 time that of the trimethylamine, continuously stirring at 25 ℃ for 2h, performing suction filtration, washing with acetone for 5 times, and drying at 50 ℃ for 18h to obtain cationic cellulose nanocrystalline;
(3) Mixing hexamethylenetetramine, distilled water, zinc nitrate and sodium citrate according to a mass ratio of 1; mixing deionized water, sodium hydroxide and urea according to a mass ratio of 7.1; mixing a cationic cellulose nanocrystal, nano zinc oxide and deionized water according to a mass ratio of 1;
(4) Placing aramid fiber 1414 in acetone 7 times of the mass of the aramid fiber 1414, soaking for 20 hours, performing suction filtration, washing for 5 minutes with deionized water, mixing with silver nitrate, dimethyl sulfoxide and deionized water according to a mass ratio of 1;
(5) Blending the modified cotton fiber and the antistatic aramid fiber according to the mass ratio of 1 2 The fabric substrate of (a); soaking the fabric substrate in a polybasic acid solution with the mass 20 times of that of the fabric substrate, wherein the bicyclo [2.2.2] is dissolved in the polybasic acid solution]The weight ratio of octa-7-ene-2,3,5,6-tetracarboxylic acid, sodium hypophosphite and deionized water is 1; the silver plating solution is 10g/L of silver nitrate, 17g/L of ethylene diamine tetraacetic acid, 12.5mL/L of ethylenediamine, 39g/L of potassium sodium tartrate, 20mL/L of ethanol, 8978 mg/L of polyethylene glycol, 100039mg/L of sodium hydroxide, and the balance of water;
(6) Mixing aluminum sec-butoxide, absolute ethyl alcohol and deionized water according to a mass ratio of 1; adding a fabric precursor with the mass 2 times that of the precursor solution, stirring at 60 ℃ and 80rpm for 50min, heating to 60 ℃ under the atmosphere of carbon dioxide, heating to 80 ℃, standing under the pressure of 8MPa for 40min, taking out, standing at room temperature for 24h, and treating at 238 ℃ and 6MPa for 6h under the atmosphere of ethanol to obtain the aerogel layer fabric;
(7) Mixing aerogel layer fabric, deionized water, absolute ethyl alcohol and trimethoxysilyl methyl mercaptan according to a mass ratio of 1; mixing a sulfhydrylation fabric, toluene, 2- (3-butenyl) -2-oxazoline, 2,2-dimethoxy-2-phenylacetophenone according to a mass ratio of 1:0.5, under the protection of argon, irradiating for 36 hours by 365nm ultraviolet, adding methanol with the mass of 28 times of that of the sulfhydrylation fabric, continuously stirring for 1 hour, taking out, and drying for 9 hours at 70 ℃ to obtain a modified fabric precursor;
(8) Mixing 4,4', 4' -phosphoryl tribenzoic acid and tetrahydrofuran according to a mass ratio of 1.
Example 2
(1) Mixing microcrystalline cellulose, ammonium persulfate and deionized water according to a mass ratio of 1:4.6, treating at 65 ℃,70rpm and 30kHz for 195min, adding deionized water with the mass 6.5 times that of the microcrystalline cellulose, centrifuging at 8500rpm for 29min, performing suction filtration, and freezing at-24 ℃ for 12h to obtain carboxylated cellulose nanocrystals; mixing 3,4-dichloro-1,2-epoxy-butane, absolute ethyl alcohol and deionized water according to the mass ratio of 1;
(2) Placing trimethylamine in a container, adding hydrochloric acid with the mass fraction of 38% until the pH value of the solution is 7.3, stirring at 60rpm for 2 hours, adding pretreated nanocrystalline with the mass of 0.67 time that of the trimethylamine, continuously stirring at 30 ℃ for 3.5 hours, performing suction filtration, washing with acetone for 6 times, and drying at 56 ℃ for 20 hours to obtain cationic cellulose nanocrystalline;
(3) Mixing hexamethylenetetramine, distilled water, zinc nitrate and sodium citrate according to a mass ratio of 1; mixing deionized water, sodium hydroxide and urea according to a mass ratio of 7.8; mixing a cationic cellulose nanocrystal, nano zinc oxide and deionized water according to a mass ratio of 1.25;
(4) Placing aramid fiber 1414 in acetone with the mass of 8.5 times of that of aramid fiber 1414, soaking for 22h, performing suction filtration, washing for 7min with deionized water, mixing with silver nitrate, dimethyl sulfoxide and deionized water according to the mass ratio of 1;
(5) Blending the modified cotton fiber and the antistatic aramid fiber according to the mass ratio of 1 2 The fabric substrate of (1); soaking the fabric substrate in a polybasic acid solution 22.5 times the mass of the fabric substrate, and bicyclo [2.2.2] in the polybasic acid solution]The weight ratio of octa-7-ene-2,3,5,6-tetracarboxylic acid to sodium hypophosphite to deionized water is 1; the silver plating solution is 10g/L of silver nitrate, 17g/L of ethylene diamine tetraacetic acid, 12.5mL/L of ethylenediamine, 39g/L of potassium sodium tartrate, 20mL/L of ethanol, 8978 mg/L of polyethylene glycol, 100039mg/L of sodium hydroxide, and the balance of water;
(6) Mixing aluminum sec-butoxide, absolute ethyl alcohol and deionized water according to a mass ratio of 1; adding a fabric precursor with the mass 3 times that of the precursor solution, stirring at 65 ℃ and 90rpm for 60min, heating to 70 ℃ under the atmosphere of carbon dioxide, heating to 85 ℃, standing for 50min under the pressure of 12MPa, taking out, standing for 26h at room temperature, and treating for 7.5h at 241 ℃ and 7MPa under the atmosphere of ethanol to obtain the aerogel layer fabric;
(7) Mixing the aerogel layer fabric, deionized water, absolute ethyl alcohol and trimethoxysilyl methyl mercaptan according to a mass ratio of 1; mixing a sulfhydrylation fabric, toluene, 2- (3-butenyl) -2-oxazoline, 2,2-dimethoxy-2-phenylacetophenone according to a mass ratio of 1;
(8) Mixing 4,4', 4' -phosphoryl tribenzoic acid and tetrahydrofuran according to a mass ratio of 1.
Example 3
(1) Mixing microcrystalline cellulose, ammonium persulfate and deionized water according to a mass ratio of 1.3; mixing 3,4-dichloro-1,2-epoxy-butane, absolute ethyl alcohol and deionized water according to a mass ratio of 1;
(2) Placing trimethylamine in a container, adding hydrochloric acid with the mass fraction of 38% until the pH value of the solution is 7.5, stirring at 70rpm for 3 hours, adding pretreated nanocrystalline with the mass of 0.74 time of that of the trimethylamine, continuously stirring at 35 ℃ for 5 hours, performing suction filtration, washing with acetone for 7 times, and drying at 62 ℃ for 22 hours to obtain cationic cellulose nanocrystalline;
(3) Mixing hexamethylenetetramine, distilled water, zinc nitrate and sodium citrate according to a mass ratio of 1.577; mixing deionized water, sodium hydroxide and urea according to a mass ratio of 8.5; mixing a cationic cellulose nanocrystal, nano zinc oxide and deionized water according to a mass ratio of 1.5;
(4) Placing aramid fiber 1414 in acetone with the mass being 10 times of that of the aramid fiber 1414, soaking for 24 hours, carrying out suction filtration, washing with deionized water for 9 minutes, mixing with silver nitrate, dimethyl sulfoxide and deionized water according to a mass ratio of 1;
(5) Blending the modified cotton fiber and the antistatic aramid fiber according to the mass ratio of 1:1, and weaving to obtain the antistatic aramid fiber with the gram weight of 220g/m 2 The fabric substrate of (1); soaking the fabric substrate in a polybasic acid solution with the mass of 25 times that of the fabric substrate, and obtaining bicyclo [2.2.2] in the polybasic acid solution]The weight ratio of octa-7-ene-2,3,5,6-tetracarboxylic acid, sodium hypophosphite and deionized water is 1Baking at 194 ℃ for 130s in to obtain a fabric precursor; the silver plating solution is 10g/L of silver nitrate, 17g/L of ethylene diamine tetraacetic acid, 12.5mL/L of ethylenediamine, 39g/L of potassium sodium tartrate, 20mL/L of ethanol, 8978 mg/L of polyethylene glycol, 100039mg/L of sodium hydroxide, and the balance of water;
(6) Mixing aluminum sec-butoxide, absolute ethyl alcohol and deionized water according to a mass ratio of 1; adding a fabric precursor with the mass 4 times that of the precursor solution, stirring at 70 ℃ and 100rpm for 70min, heating to 80 ℃ under the atmosphere of carbon dioxide, heating to 90 ℃, standing for 60min under the pressure of 15MPa, taking out, standing for 28h at room temperature, and treating for 9h at 245 ℃ and 8MPa under the atmosphere of ethanol to obtain the aerogel layer fabric;
(7) Mixing the aerogel layer fabric, deionized water, absolute ethyl alcohol and trimethoxysilyl methyl mercaptan according to a mass ratio of 1; mixing a sulfhydrylation fabric, toluene, 2- (3-butenyl) -2-oxazoline, 2,2-dimethoxy-2-phenylacetophenone according to a mass ratio of 1 to 524, 0.004, irradiating for 48 hours by 365nm ultraviolet under the protection of argon, adding methanol with the mass being 39 times that of the sulfhydrylation fabric, continuously stirring for 3 hours, taking out, and drying for 14 hours at 80 ℃ to obtain a modified fabric precursor;
(8) Mixing 4,4', 4' -phosphoryl tribenzoic acid and tetrahydrofuran according to a mass ratio of 1.
Comparative example 1
The difference between the comparative example 1 and the example 2 is that the steps (1) and (2) are not provided, and the step (3) is changed into the following steps: mixing hexamethylenetetramine, distilled water, zinc nitrate and sodium citrate according to a mass ratio of 1; mixing deionized water, sodium hydroxide and urea according to a mass ratio of 7.8; mixing nano zinc oxide and deionized water according to a mass ratio of 1.25. The rest of the procedure was the same as in example 2.
Comparative example 2
Comparative example 2 differs from example 2 in that step (3) is different, step (3) being changed to: mixing hexamethylenetetramine, distilled water, zinc nitrate and sodium citrate according to a mass ratio of 1.577; mixing deionized water, sodium hydroxide and urea according to a mass ratio of 8.5; mixing the cationic cellulose nanocrystal, the nano zinc oxide and the deionized water according to the mass ratio of 1.5. The rest of the procedure was the same as in example 2.
Comparative example 3
Comparative example 3 differs from example 2 in that step (5) is different, step (5) being changed to: blending the modified cotton fiber and the antistatic aramid fiber according to the mass ratio of 1 2 The face fabric precursor of (1). The rest of the procedure was the same as in example 2.
Comparative example 4
Comparative example 4 differs from example 2 in that there is no step (4), a stepStep (5) is changed into: weaving the modified cotton fiber to obtain the product with a gram weight of 200g/m 2 The fabric substrate of (1); soaking the fabric substrate in a polybasic acid solution with the mass 22.5 times of that of the fabric substrate, wherein the bicyclo [2.2.2] is dissolved in the polybasic acid solution]The weight ratio of octa-7-ene-2,3,5,6-tetracarboxylic acid, sodium hypophosphite and deionized water is 1; the silver plating solution is 10g/L of silver nitrate, 17g/L of ethylene diamine tetraacetic acid, 12.5mL/L of ethylenediamine, 39g/L of potassium sodium tartrate, 20mL/L of ethanol, 8978 mg/L of polyethylene glycol, 8978 mg/L of zxft 8978 mg/L of sodium hydroxide, and the balance of water. The rest of the procedure was the same as in example 2.
Comparative example 5
Comparative example 5 differs from example 2 in that step (6) is not present and step (7) is changed to: mixing a fabric precursor, deionized water, absolute ethyl alcohol and trimethoxysilyl methyl mercaptan according to a mass ratio of 1; mixing the sulfhydrylation fabric, toluene, 2- (3-butenyl) -2-oxazoline, 2,2-dimethoxy-2-phenylacetophenone according to the mass ratio of 1. The rest of the procedure was the same as in example 2.
Comparative example 6
Comparative example 6 differs from example 2 in that step (7) is different, step (7) being changed to: mixing the aerogel layer fabric, toluene, 2- (3-butenyl) -2-oxazoline and 2,2-dimethoxy-2-phenylacetophenone according to a mass ratio of 1 to 512, wherein the mass ratio is as follows. The rest of the procedure was the same as in example 2.
Comparative example 7
Comparative example 7 differs from example 2 in that step (8) is not included, and the rest of the procedure is the same as example 2.
Examples of effects
The following table 1 shows the performance analysis results of the anti-wrinkle anti-arc fabrics using examples 1 to 3 of the present invention and comparative examples 1 to 7.
TABLE 1
Figure BDA0003763700090000111
Figure BDA0003763700090000121
The comparison of the recovery angle experimental data of the examples and the comparative examples shows that the cellulose nanocrystal is modified to obtain the cationic cellulose nanocrystal; mixing with hollow porous nano zinc oxide, permeating into the swollen cotton fibers, and under the catalysis of the nano zinc oxide, crosslinking the cotton fibers and the cationic cellulose nanocrystals to improve the fiber strength, so that the fabric has an anti-wrinkle effect, and meanwhile, gaps at rough parts of the cotton fibers are filled, and the anti-wrinkle property of the fabric is enhanced; after the fabric substrate is manufactured, the bicyclo [2.2.2] octa-7-ene-2,3,5,6-tetracarboxylic acid is infiltrated into the fabric substrate and further crosslinked to form a complex three-dimensional network structure, so that the anti-wrinkle effect of the fabric is improved; the comparison of experimental data of arc prevention performance, continuous combustion time, smoldering time and melting and dripping phenomena of the embodiment and the comparative example shows that the chemical silver plating treatment is carried out on the surface of aramid fiber to form antistatic fiber, the antistatic fiber and zinc oxide are acted together to form an antistatic fabric substrate, then a heat-insulating and high-temperature-resistant aerogel layer is formed on the surface of the fabric substrate, and then trimethoxysilylmethanethiol, 2- (3-butenyl) -2-oxazoline, 4,4', 4' -phosphoryltribenzoic acid and melamine are used for modifying the antistatic fabric substrate to form a flame-retardant film, so that the three components synergistically act to improve the arc prevention performance of the fabric.
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 (10)

1. The crease-resistant and arc-resistant fabric comprises a fabric substrate and an aerogel layer and is characterized in that the fabric substrate is prepared by blending modified cotton fibers and antistatic aramid fibers.
2. The crease-resistant and arc-resistant fabric according to claim 1, wherein the modified cotton fiber is prepared by oxidizing microcrystalline cellulose with ammonium sulfate to obtain carboxylated cellulose nanocrystals, mixing with 3,4-dichloro-1,2-epoxy-butane, and stirring to react to obtain pretreated nanocrystals; mixing and stirring trimethylamine and hydrochloric acid, adding the pretreated nanocrystal, and continuously stirring to obtain the cationic cellulose nanocrystal; then mixing and stirring the modified cotton fiber with nano zinc oxide, sequentially adding sodium hydroxide, pretreating the cotton fiber, and performing first supercritical treatment to obtain the modified cotton fiber.
3. The anti-wrinkle and anti-electric arc fabric as claimed in claim 1, wherein the anti-static aramid fiber is prepared by washing aramid 1414 with acetone, mixing with silver nitrate, dimethyl sulfoxide and deionized water, reacting in water bath, taking out, immersing in sodium borohydride solution for a period of time, taking out, immersing in silver plating solution, and stirring.
4. The crease-resistant and arc-resistant fabric according to claim 1, wherein the aerogel layer is prepared by immersing a fabric substrate in a polybasic acid solution, performing a second supercritical treatment, drying, and baking to obtain a fabric precursor; placing the fabric in the precursor solution, carrying out third supercritical treatment, aging, and carrying out ethanol supercritical drying to obtain an aerogel layer fabric; and then modified by trimethoxysilylmethanethiol, 2- (3-butenyl) -2-oxazoline, 4,4', 4' -phosphoryltribenzoic acid and melamine.
5. A preparation method of a crease-resistant and arc-resistant fabric is characterized by comprising the following preparation steps:
(1) Mixing 3,4-dichloro-1,2-epoxy-butane, anhydrous ethanol and deionized water according to a mass ratio of 1.5-1;
(2) Placing trimethylamine in a container, adding hydrochloric acid with the mass fraction of 38% until the pH value of the solution is 7-7.5, stirring for 1-3 h at 50-70 rpm, adding pretreated nanocrystalline with the mass of 0.60-0.74 times of that of the trimethylamine, continuously stirring for 2-5 h at 25-35 ℃, performing suction filtration, washing for 5-7 times by using acetone, and drying for 18-22 h at 50-62 ℃ to obtain cationic cellulose nanocrystalline;
(3) Mixing a cationic cellulose nanocrystal, nano zinc oxide and deionized water according to a mass ratio of 1.0;
(4) Blending the modified cotton fiber and the antistatic aramid fiber according to the mass ratio of 1.5-1:1, and weaving to obtain the antistatic aramid fiber with the gram weight of 200-220 g/m 2 The fabric substrate of (1); soaking the fabric substrate in a polybasic acid solution with the mass of 20-25 times that of the fabric substrate, and bicyclo [2.2.2] in the polybasic acid solution]The weight ratio of octa-7-ene-2,3,5,6-tetracarboxylic acid, sodium hypophosphite and deionized water is 1Taking out, drying at 80-90 ℃ for 10-22min, and baking at 180-194 ℃ for 100-130 s to obtain a fabric precursor;
(5) Mixing aluminum sec-butoxide, absolute ethyl alcohol and deionized water according to a mass ratio of 1; adding a fabric precursor with 2-4 times of the mass of the precursor liquid, stirring at 60-70 ℃ and 80-100 rpm for 50-70 min, heating to 60-80 ℃ under the atmosphere of carbon dioxide, heating to 80-90 ℃, standing for 40-60 min under the pressure of 8-15 MPa, taking out, standing for 24-28 h at room temperature, and treating at 238-245 ℃ and 6-8 MPa for 6-9 h under the atmosphere of ethanol to obtain the aerogel layer fabric;
(6) Mixing the aerogel layer fabric, deionized water, absolute ethyl alcohol and trimethoxysilyl methyl mercaptan according to a mass ratio of 1; mixing a sulfhydrylation fabric, toluene, 2- (3-butenyl) -2-oxazoline, 2,2-dimethoxy-2-phenylacetophenone according to the mass ratio of 1;
(7) Mixing 4,4', 4' -phosphoryl tribenzoic acid and tetrahydrofuran according to a mass ratio of 1.
6. The preparation method of the crease-resistant and arc-resistant fabric according to claim 5, wherein the preparation method of the carboxylated cellulose nanocrystals in the step (1) comprises the following steps: mixing microcrystalline cellulose, ammonium persulfate and deionized water according to a mass ratio of 1.9.
7. The preparation method of the crease-resistant and arc-resistant fabric according to claim 5, wherein the preparation method of the nano zinc oxide in the step (3) comprises the following steps: mixing hexamethylenetetramine, distilled water, zinc nitrate and sodium citrate according to the mass ratio of 1.0.
8. The method for preparing the crease-resistant arc-proof fabric as claimed in claim 5, wherein the preparation method of the pretreated cotton fiber in the step (3) comprises the following steps: mixing deionized water, sodium hydroxide and urea according to the mass ratio of 7.1.
9. The preparation method of the anti-wrinkle and anti-arc fabric as claimed in claim 5, wherein the preparation method of the antistatic aramid fiber in the step (4) is as follows: placing aramid fiber 1414 in acetone with the mass 7-10 times of that of the aramid fiber 1414, soaking for 20-24 h, performing suction filtration, washing for 5-9 min with deionized water, mixing with silver nitrate, dimethyl sulfoxide and deionized water according to a mass ratio of 1.
10. The preparation method of the crease-resistant and arc-resistant fabric according to claim 9, wherein the silver plating solution is 10g/L silver nitrate, 17g/L disodium ethylene diamine tetraacetate, 12.5mL/L ethylenediamine, 39g/L potassium sodium tartrate, 20mL/L ethanol, 100039mg/L polyethylene glycol, 6.69g/L sodium hydroxide, and the balance water.
CN202210879647.0A 2022-07-25 2022-07-25 Anti-wrinkle and anti-electric arc fabric and preparation method thereof Pending CN115418850A (en)

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CN214164287U (en) * 2020-11-13 2021-09-10 嘉兴市田乐华兴纺织厂 High-drape antistatic simulation silk fabric
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CN104499161A (en) * 2014-12-18 2015-04-08 常熟市宝沣特种纤维有限公司 Permanent flame-retardant multifunctional fabric and making method thereof
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