CN113073464A - Processing method of cellulose fiber product with photothermal effect - Google Patents
Processing method of cellulose fiber product with photothermal effect Download PDFInfo
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- CN113073464A CN113073464A CN202110330302.5A CN202110330302A CN113073464A CN 113073464 A CN113073464 A CN 113073464A CN 202110330302 A CN202110330302 A CN 202110330302A CN 113073464 A CN113073464 A CN 113073464A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—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 sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/53—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 sulfur, selenium, tellurium, polonium or compounds thereof with hydrogen sulfide or its salts; with polysulfides
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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
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/203—Unsaturated carboxylic acids; Anhydrides, halides or salts thereof
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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
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/02—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of natural origin
- D06M14/04—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials on to materials of natural origin of vegetal origin, e.g. cellulose or derivatives thereof
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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
- 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
- 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
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- Chemical & Material Sciences (AREA)
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- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention discloses a processing method of a cellulose fiber product with a photothermal effect, and belongs to the technical field of functional textile processing. The method comprises the following steps: introducing vinyl on a cellulose fiber product, and catalyzing acrylic acid and N, N-methylene bisacrylamide to graft and polymerize on fibers by means of horseradish peroxidase to form a carboxyl-containing net template on the surfaces of the fibers; and then soaking the cellulose fiber product in a copper ammonia solution, and adding sodium sulfide to promote the in-situ deposition on the fiber surface to form nano copper sulfide particles, thereby obtaining the cellulose fiber product with the photothermal effect. The invention realizes the preparation of the cellulose fiber product with illumination and self-heating by a binder-free method, and simultaneously endows the cellulose fiber product with the function of rapid sterilization by illumination; the cellulose fiber obtains higher photo-thermal effect and the application performance of the cellulose fiber product is improved.
Description
Technical Field
The invention relates to a processing method of a cellulose fiber product with a photothermal effect, and belongs to the technical field of functional textile processing.
Background
The cellulose fiber product comprises woven fabric, knitted fabric or non-woven fabric products which are processed by adopting fibers such as cotton, hemp, viscose, tencel and the like as raw materials, has the advantages of soft hand feeling, excellent moisture absorption and the like, and is widely applied to the fields of garment materials, home textile materials and the like. In recent years, the development of functional cellulose fiber products is emphasized, and particularly, the fiber products with spontaneous heating function under certain conditions are popular in autumn and winter clothes and home textile materials.
Self-heating textiles come in several different types, including heating by conduction, heating by light, etc. The conductive heating textile is characterized in that conductive media such as carbon black, graphene, carbon nanotubes or conductive polymers (such as polyaniline) are coated on the surface of a fiber product and are heated under an external current, so that the surface of the fiber product is heated. The heating by illumination is realized by selecting a photo-thermal medium (such as graphene and Mxene) with absorption effect on visible light or near infrared, and the temperature of the textile is raised by the photo-thermal effect of the medium under the illumination condition. Compared with electrothermal textiles, photothermal does not need an external power supply, and only needs illumination with certain intensity to realize rapid temperature rise of the substrate, but also has the defect similar to that of a conventional conductive medium, namely, the photothermal adversely affects the color appearance and hand feeling of a fiber product. Therefore, the fiber product with the photothermal effect is designed and applied to meet the requirements of the product on three aspects of photothermal effect, color appearance and hand feeling, and the problem to be solved at present is urgently needed.
The nanometer copper sulfide is a kind of photo-thermal agent with good development prospect due to the good optical property, and is applied to the fields of catalysis, sensing and the like. The photothermal property of the nano copper sulfide mainly comes from the strong absorption capacity of the nano copper sulfide to near infrared light, and the near infrared light can trigger the d-d energy band transition of copper ions, so that the substrate temperature is rapidly increased, and the nano copper sulfide has high photothermal efficiency and a rapid sterilization effect, and has potential application prospects in the field of self-heating composite materials. At present, the preparation method of nano copper sulfide is more, but the preparation method is mostly carried out under the extreme conditions of high temperature and high pressure, the preparation method of nano copper sulfide which is simple, convenient and easy to implement and high in photo-thermal efficiency is lacked, and the product development of the self-heating fiber product is restricted.
Disclosure of Invention
[ problem ] to provide a method for producing a semiconductor device
The technical problems to be solved in practice by the invention are as follows: provides a method for processing a cellulose fiber product with a photothermal effect and a bactericidal function, wherein the reaction conditions are mild, the photothermal efficiency is high, and the cellulose fiber product has the photothermal effect.
[ technical solution ] A
Aiming at the problems, the invention aims to provide a processing method of a cellulose fiber product with a photo-thermal effect, which can improve the template effect on the surface of the cellulose fiber, guide the nano copper sulfide to generate high-efficiency in-situ deposition on the surface of the fiber, form nano copper sulfide particles on the surface of the fiber, realize the preparation of the cellulose fiber product with self-heating illumination by a binder-free method and endow the cellulose fiber product with a rapid sterilization function by illumination; the cellulose fiber obtains higher photo-thermal effect and the application performance of the cellulose fiber product is improved.
A first object of the present invention is to provide a method for the preparation of a cellulosic fibrous product having a photothermal effect, said method comprising: introducing vinyl on a cellulose fiber product, and catalyzing acrylic acid and N, N-methylene bisacrylamide to graft and polymerize on fibers by means of horseradish peroxidase to form a carboxyl-containing net template on the surfaces of the fibers; and then soaking the cellulose fiber product in a copper ammonia solution, and adding sodium sulfide to promote the in-situ deposition on the fiber surface to form nano copper sulfide particles, thereby obtaining the cellulose fiber product with the photothermal effect.
In one embodiment of the invention, the cellulosic fibrous product is a cellulosic fiber or a composite fiber, yarn or fabric containing cellulosic fibers.
In one embodiment of the invention, the cellulosic fibers comprise cotton, hemp, viscose or tencel fibers.
In one embodiment of the present invention, the vinyl group is introduced by dipping the cellulose fiber product in a solution of a vinyl group-containing acid anhydride compound, and reacting to introduce the vinyl group to the fiber.
In one embodiment of the present invention, the vinyl-containing anhydride compound includes methacrylic anhydride or alkenyl succinic anhydride.
In one embodiment of the present invention, the treatment conditions for introducing vinyl groups on the fibers are: 3-6 g/L of vinyl-containing anhydride compound, 0-4 ℃ of temperature, 7-8 of pH value and 6-12 hours of treatment time.
In one embodiment of the present invention, the process conditions for constructing the fiber surface mesh template are as follows: 6-15 g/L of acrylic acid, 0.6-2 g/L of N, N-methylene bisacrylamide, 2-10U/mL of horseradish peroxidase, 3-5 g/L of acetylacetone and H2O21.5-3 g/L, 35-40 ℃, 6-8 pH and 3-6 hours of treatment time.
In one embodiment of the present invention, the process conditions for in-situ deposition of nano copper sulfide are as follows: 0.1-0.2 mol/L of copper ammonia solution of copper tetraammine complex ions, 7.5-15 g/L of sodium sulfide, and the treatment temperature is 30-40 ℃.
In an embodiment of the present invention, the method specifically includes the following steps:
(1) fiber grafted vinyl: immersing the cellulosic fibrous article in a solution of a vinyl-containing anhydride compound to effect vinyl incorporation on the fibers;
the processing process prescription and conditions are as follows: 3-6 g/L of vinyl-containing anhydride compound, the temperature is 0-4 ℃, the pH value ranges from 7 to 8, and the treatment time is 6-12 hours;
(2) constructing a fiber surface reticular template: after being washed by water, the cellulose fiber product treated in the step (1) is soaked in a mixed solution of acrylic acid, N-methylene bisacrylamide, horseradish peroxidase and acetylacetone, hydrogen peroxide is added under the protection of nitrogen to initiate the graft polymerization of vinyl monomers in the solution on the surface of cellulose fiber, and after washing, a carboxyl-containing reticular template is formed on the surface of the fiber;
the processing process prescription and conditions are as follows: 6-15 g/L of acrylic acid, 0.6-2 g/L of N, N-methylene bisacrylamide, 2-10U/mL of horseradish peroxidase, 3-5 g/L of acetylacetone and H2O21.5-3 g/L, the temperature is 35-40 ℃, the pH value ranges from 6 to 8, and the treatment time is 3-6 hours;
(3) in-situ deposition of nano copper sulfide: soaking the cellulose fiber product treated in the step (2) in a copper ammonia solution of copper tetraammine complex ions prepared from copper sulfate and ammonia water, stirring for 15-30 min, then dropwise adding a sodium sulfide solution, and continuing to react for 15-30 min after dropwise adding is finished, thus obtaining the cellulose fiber product containing nano copper sulfide;
the processing process prescription and conditions are as follows: 0.1-0.2 mol/L of copper ammonia solution of copper tetraammine complex ions, 7.5-15 g/L of sodium sulfide, and the treatment temperature is 30-40 ℃;
(4) water washing and drying treatment: and (4) washing the cellulose fiber product treated in the step (3) with deionized water at 25-40 ℃ for 15-30 min, and then drying at 60 ℃.
The second purpose of the invention is to provide a cellulose fiber product with a photothermal effect prepared by the method.
A third object of the invention is to provide a textile product comprising the above-mentioned cellulosic fibrous product having a photothermal effect.
In one embodiment of the present invention, the textile includes any one of a carpet type fabric, a woven fabric, a knitted fabric, a thermal insulating wadding, a filling, a nonwoven fabric, a garment, a clothing accessory, a home textile, a decoration, or a special work garment.
The invention also provides application of the method in preparation of the biomass-based nano copper sulfide composite functional material.
The fifth purpose of the invention is to provide a method for improving the photothermal performance of the biomass-based nano copper sulfide composite functional material, wherein the method comprises the steps of introducing vinyl on a biomass-based template, and then catalyzing acrylic acid and N, N-methylene bisacrylamide to graft and polymerize on the biomass-based template by means of horseradish peroxidase to form a carboxyl-containing reticular template on the biomass-based template, so that the biomass-based template effect is improved, the formation of nano copper sulfide is promoted, and the photothermal performance of the biomass-based nano copper sulfide composite functional material is improved.
The invention has the beneficial effects that:
according to the invention, a cellulose fiber product is treated by methacrylic anhydride, vinyl is introduced on the fiber, and then grafting polymerization is carried out on the fiber by means of horseradish peroxidase catalysis, so as to form a carboxyl-containing reticular template; and (3) soaking the cellulose fiber product in a copper ammonia solution, and adding sodium sulfide to promote the deposition of nano copper sulfide particles on the surface of the fiber to prepare the cellulose fiber product with the photothermal effect. Compared with the cellulose fiber product which does not contain a reticular template and directly deposits the nano copper sulfide, the cellulose fiber product prepared by the method has the following advantages:
(1) the fiber product is heated quickly. The reticular template containing carboxyl on the surface of the cellulose fiber increases the combination amount of the copper tetraammine complex ions and the fiber, is favorable for forming more nano copper sulfide ions on the surface of the fiber in the process of dropwise adding sodium sulfide, improves the heating rate of the fiber product under the illumination condition, and can reach 73.4 ℃ after 20min of irradiation.
(2) Realize the quick sterilization of illumination. The nanometer copper sulfide deposited on the surface of the cellulose fiber is heated up under illumination, so that escherichia coli and staphylococcus aureus adhered to the surface of the fiber product can be rapidly killed in a short time, the sterilization rate is up to 93.3%, and the fiber product is endowed with the effect of rapid sterilization.
(3) The finishing effect is durable and the fiber product has good hand feeling. The finishing effect of the method has better durability, the fiber product still keeps better photothermal effect after being washed by water for many times, and no adhesive is used in the processing, so the hand feeling of the fabric is also better.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of better illustrating the invention and is not intended to limit the invention thereto.
1. Simulating sunlight by using a xenon lamp to irradiate the sample for 20min, and detecting the surface temperature of the sample at a position vertical to 30cm by using an infrared temperature measuring gun; inoculating escherichia coli on the surface of the sample, irradiating the sample for 20min by simulated sunlight, washing the sample by using a buffer solution, collecting bacterial colonies on the surface of the sample, culturing the bacterial colonies by using the method described in GB/T20944.3-2008 by taking the sample which is not irradiated by the simulated sunlight as a reference, and calculating the sterilization rate of the sample after irradiation; the fabric drape coefficient was determined with reference to GB/T23329-2009 to evaluate the effect of the processing on the hand feel of the test specimens.
2. Horseradish peroxidase, purchased from Aladdin, with an enzyme activity of 300U/mg.
Example 1:
(1) fiber grafted vinyl: soaking the pure cotton knitted fabric in a methacrylic anhydride solution to realize the introduction of vinyl on cotton fibers; wherein, methacrylic anhydride 3g/L, temperature 0 ℃, pH 7, and the treatment time is 6 hours;
(2) constructing a fiber surface reticular template: after washing the sample treated in the step (1), soaking the sample in a mixed solution of acrylic acid, N-methylene bisacrylamide, horseradish peroxidase and acetylacetone, adding hydrogen peroxide under the protection of nitrogen to initiate vinyl monomers in the solution to graft and polymerize on the surface of cotton fibers, and after washing, forming a carboxyl-containing reticular template on the surface of the cotton fibers; wherein, acrylic acid is 6g/L, N, N-methylene bisacrylamide is 0.6g/L, horseradish peroxidase is 2U/mL, acetylacetone is 3g/L, H2O21.5g/L, the temperature is 35 ℃, the pH value is 6.5, and the treatment is carried out for 3 hours;
(3) in-situ deposition of nano copper sulfide: dipping the sample treated in the step (2) in a copper ammonia solution of copper tetraammine complex ions prepared from copper sulfate and ammonia water, stirring for 15min, then dropwise adding a sodium sulfide solution, and continuing to react for 15min after dropwise adding is finished to obtain a pure cotton knitted fabric containing nano copper sulfide; wherein, the copper ammonia solution of the copper tetraammine complex ion is 0.1mol/L, the sodium sulfide is 7.5g/L, and the temperature is 30 ℃;
(4) water washing and drying treatment: and (4) washing the sample treated in the step (3) with deionized water at 25 ℃ for 15min, and then drying at 60 ℃.
Comparative example 1: an untreated sample;
comparative example 2: the treatment is carried out in the steps (3) and (4) in the embodiment 1, and the treatment is not carried out in the steps (1) and (2);
comparative example 3: the treatment of the steps (1), (3) and (4) in the embodiment 1 is carried out, and the treatment of the step (2) is not carried out;
comparative example 4: after the treatment of the steps (1) to (4) in example 1, the mixture was washed with water at 60 ℃ for 1 hour and then dried at 60 ℃.
After the treatment by the process, according to the method described in the specific implementation mode, the surface temperature, the sterilization rate and the fabric drape coefficient of the samples in example 1 and comparative examples 1 to 4 after irradiation are respectively measured.
Wherein, the surface temperature of the sample in the example 1 after irradiation is 70.3 ℃, the sterilization rate is 90.9 percent, and the fabric drape coefficient is 45.3 percent. In comparative example 1, the surface temperature of the sample after irradiation is 23.3 ℃, the sterilization rate after irradiation is 3%, and the fabric drape coefficient is 42.8%; in the comparative example 2, the surface temperature of the sample after irradiation is 46.1 ℃, the sterilization rate after irradiation is 65%, and the fabric drape coefficient is 43.9%; the surface temperature of the irradiated sample in the comparative example 3 is 47.4 ℃, the sterilization rate is 68 percent, and the fabric drape coefficient is 43.9 percent; in comparative example 4, the surface temperature of the irradiated sample was 69.0 ℃, the sterilization rate was 88.1%, and the drape coefficient of the fabric was 43.1%.
Example 2
(1) Fiber grafted vinyl: dipping tencel woven fabric in a solution of alkenyl succinic anhydride to realize the introduction of vinyl on fibers; wherein alkenyl succinic anhydride is 6g/L, the temperature is 4 ℃, the pH value is 8, and the treatment is carried out for 12 hours;
(2) constructing a fiber surface reticular template: after washing the sample treated in the step (1), soaking the sample in a mixed solution of acrylic acid, N-methylene bisacrylamide, horseradish peroxidase and acetylacetone, adding hydrogen peroxide under the protection of nitrogen to initiate vinyl monomers in the solution to graft and polymerize on the surface of tencel fibers, and after washing, forming a carboxyl-containing reticular template on the surface of the fibers; wherein, acrylic acid 15g/L, N, N-methylene bisacrylamide 2g/L, horseradish peroxidase 10U/mL, acetylacetone 5g/L, H2O23g/L, the temperature is 40 ℃, the pH value is 7.5, and the treatment is carried out for 6 hours;
(3) in-situ deposition of nano copper sulfide: dipping the sample treated in the step (2) in a copper ammonia solution of copper tetraammine complex ions prepared from copper sulfate and ammonia water, stirring for 30min, then dropwise adding a sodium sulfide solution, and continuing to react for 30min after dropwise adding is finished, so as to obtain the tencel woven fabric containing nano copper sulfide; wherein, the copper ammonia solution of the copper tetraammine complex ion is 0.2mol/L, the sodium sulfide is 15g/L, and the processing temperature is 40 ℃;
(4) water washing and drying treatment: and (4) washing the tencel woven fabric treated in the step (3) with deionized water at 40 ℃ for 30min, and then drying at 60 ℃.
Comparative example 5: an untreated sample;
comparative example 6: the treatment is carried out in the steps (3) and (4) in the embodiment 2, and the treatment is not carried out in the steps (1) and (2);
comparative example 7: the treatment of the steps (1), (3) and (4) in the embodiment 2 is carried out, and the treatment of the step (2) is not carried out;
comparative example 8: after the treatment of the steps (1) to (4) in example 2, the mixture was washed with water at 60 ℃ for 1 hour and then dried at 60 ℃.
After the treatment by the process, according to the method described in the specific implementation mode, the surface temperature, the sterilization rate and the fabric drape coefficient of the samples in example 2 and comparative examples 5 to 8 after irradiation are respectively measured.
Wherein, the surface temperature of the sample in the example 2 after irradiation is 73.4 ℃, the sterilization rate is 93.3 percent, and the fabric drape coefficient is 38.3 percent. In the comparative example 5, the surface temperature of the irradiated sample is 26.3 ℃, the sterilization rate of the irradiated sample is 2%, and the fabric drape coefficient is 35.1%; in the comparative example 6, the surface temperature of the sample after irradiation is 47.9 ℃, the sterilization rate after irradiation is 69 percent, and the fabric drape coefficient is 36.2 percent; in comparative example 7, the surface temperature of the irradiated sample is 46.1 ℃, the sterilization rate is 66%, and the fabric drape coefficient is 37.1%; in comparative example 8, the surface temperature of the irradiated sample was 70.4 ℃, the sterilization rate was 89.1%, and the drape coefficient of the fabric was 39.1%.
It can be seen that the untreated fabrics (comparative examples 1 and 5) had lower surface temperature and bactericidal rate after irradiation; the surface temperature of fabrics (comparative example 2 and comparative example 6) directly deposited with the nano copper sulfide is obviously increased compared with that of untreated fabrics without constructing a network template containing carboxyl on the surface of the fiber, and the fabric has a certain photo-thermal sterilization effect; the fabrics (comparative example 3 and comparative example 7) which graft vinyl on the surface of the fiber only and then directly deposit the nano copper sulfide have similar performance with the former and have certain photo-thermal effect.
The method provided by the invention is adopted to construct the fiber surface network template, and then the fabrics (examples 1 and 2) of the nano copper sulfide are deposited in situ, so that the photothermal effect is most obvious, the surface temperature of the sample after irradiation is the highest, and the sterilization rate is also the highest. Comparative example 4 and comparative example 8 are that the samples in example 1 and example 2 are washed and dried, and the results are less changed than the properties of the fiber products in example 1 and example 2, the change rate is less than 5%, which shows that the nano copper sulfide deposited on the surface of the fiber products has good bonding fastness. In addition, in the above example 1 or example 2, the fabric drape coefficient of the sample deposited with the nano copper sulfide is similar to that of the untreated sample, which indicates that the hand feeling of the sample is less affected by the copper sulfide deposited on the surface of the cellulose fiber product.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for the preparation of a cellulosic fibrous product having a photothermal effect, the method comprising: introducing vinyl on a cellulose fiber product, and catalyzing acrylic acid and N, N-methylene bisacrylamide to graft and polymerize on fibers by means of horseradish peroxidase to form a carboxyl-containing net template on the surfaces of the fibers; and then soaking the cellulose fiber product in a copper ammonia solution, and adding sodium sulfide to promote the in-situ deposition on the fiber surface to form nano copper sulfide particles, thereby obtaining the cellulose fiber product with the photothermal effect.
2. The method according to claim 1, characterized in that the cellulosic fibrous product is cellulosic fibres or composite fibres, yarns or fabrics containing cellulosic fibres.
3. The method of claim 1 or 2, wherein the vinyl group is introduced by dipping the cellulose fiber product in a solution of a vinyl group-containing acid anhydride compound, and reacting to introduce the vinyl group to the fiber.
4. The process according to any one of claims 1 to 3, characterized in that the vinyl groups are introduced under the following treatment conditions: 3-6 g/L of vinyl-containing anhydride compound, 0-4 ℃ of temperature, 7-8 of pH value and 6-12 hours of treatment time.
5. The method according to any one of claims 1 to 4, wherein the process conditions for constructing the fiber surface network template are as follows: 6-15 g/L of acrylic acid, 0.6-2 g/L of N, N-methylene bisacrylamide, 2-10U/mL of horseradish peroxidase, 3-5 g/L of acetylacetone and H2O21.5-3 g/L, 35-40 ℃, 6-8 pH and 3-6 hours of treatment time.
6. The method according to any one of claims 1 to 5, wherein the process conditions for in-situ deposition of the nano-copper sulfide are as follows: 0.1-0.2 mol/L of copper ammonia solution of copper tetraammine complex ions, 7.5-15 g/L of sodium sulfide, and the treatment temperature is 30-40 ℃.
7. Cellulosic fibre product having a photothermal effect, obtainable by applying the process according to any of claims 1 to 6.
8. Textile products containing cellulosic fibre products with a photothermal effect as claimed in claim 7.
9. Use of the method according to any one of claims 1 to 6 for the preparation of biomass-based nano copper sulphide composite functional materials.
10. A method for improving photo-thermal performance of a biomass-based nano copper sulfide composite functional material is characterized in that vinyl is introduced into a biomass-based template, and then acrylic acid and N, N-methylene bisacrylamide are catalyzed by means of horseradish peroxidase to be graft polymerized on the biomass-based template, so that a carboxyl-containing reticular template is formed on the biomass-based template, the template effect of a biomass base is improved, formation of nano copper sulfide is promoted, and the photo-thermal performance of the biomass-based nano copper sulfide composite functional material is improved.
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| CN113896931A (en) * | 2021-09-28 | 2022-01-07 | 华中科技大学 | Decontamination heat-resistant composite polymer film and preparation method and application thereof |
| CN114990721A (en) * | 2022-06-30 | 2022-09-02 | 中原工学院 | High-strength photo-thermal polypropylene fiber and preparation method and application thereof |
| CN115506148A (en) * | 2022-10-26 | 2022-12-23 | 浙江德易遮阳科技股份有限公司 | Method for preparing aldehyde-removing antibacterial sun-shading material based on biological method |
| CN115852674A (en) * | 2022-11-08 | 2023-03-28 | 江南大学 | Fiber product for realizing photo-thermal rapid sterilization based on in-situ deposited nanoparticles and finishing method thereof |
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