CN112080943A - Functional environment-friendly non-woven fabric and preparation method thereof - Google Patents
Functional environment-friendly non-woven fabric and preparation method thereof Download PDFInfo
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- CN112080943A CN112080943A CN202010955996.7A CN202010955996A CN112080943A CN 112080943 A CN112080943 A CN 112080943A CN 202010955996 A CN202010955996 A CN 202010955996A CN 112080943 A CN112080943 A CN 112080943A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
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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
- D06M11/32—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 System; 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
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/047—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with fluoropolymers
Abstract
The invention belongs to the technical field of textile fabrics, and particularly relates to a functional environment-friendly non-woven fabric and a preparation method thereof. The product developed by the invention comprises a non-woven fabric substrate layer and a functional coating; a transition layer is arranged between the non-woven fabric substrate layer and the functional coating; the transition layer comprises nano powder; the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer; the functional coating comprises graphene oxide. When the product is prepared, PVDF resin and graphene oxide are prepared into functional coating slurry; spraying the nano powder to the non-woven fabric substrate layer through a plasma generator to form a transition layer; and coating the functional coating slurry on the surface of the transition layer to form the functional coating. The surface functional coating of the product obtained by the invention has firm binding force with the non-woven fabric substrate layer, and is not easy to peel off and separate.
Description
Technical Field
The invention belongs to the technical field of textile fabrics. More particularly, relates to a functional environment-friendly non-woven fabric and a preparation method thereof.
Background
The surface modification and coating treatment of the fiber are methods capable of directly endowing the fiber and the fabric with functionality, and with the application of a new technology, the surface modification enables traditional plants to have multiple functions of good heat conductivity, electric conductivity, super hydrophobicity, electromagnetic shielding, ultraviolet protection and the like. Meanwhile, in order to achieve the intended function, functional materials such as metal nanoparticles, various polymer materials, carbon nanomaterials and the like are commonly used to prepare the surface-modified multifunctional fabric. Among these materials, graphene or graphene oxide is considered to be the most promising material in the field of fiber modification.
As a novel two-dimensional nano material, graphene shows excellent performance in all aspects, extremely large theoretical specific surface area (2600 square meters per gram), good mechanical stability and high carrier mobility (2: (1.5×105cm2V · s)), excellent electrothermal properties and environmental stability make it an ideal modifying material.
Graphene and derivatives thereof have become ideal nano materials for preparing flexible functional textiles. However, the traditional surface modification methods, such as dip coating, hot press drying or layer-by-layer self-assembly, have poor effect on modifying hydrophobic fabrics or fibers. In addition, the obtained modified fiber has low surface loading rate and poor water resistance, so that the further development of graphene in the fiber surface modification is limited.
Therefore, when the non-woven fabric is functionalized by adopting graphene or graphene oxide, how to ensure that the graphene or the graphene oxide can be well, uniformly and effectively deposited on the surface of the non-woven fabric is ensured; in addition, in the using process of the product, how to avoid the stability of the surface graphene or the graphene oxide and avoid the separation thereof is one of the technical problems to be solved urgently for those skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of insufficient functionalized modification persistence caused by easy separation of graphene or graphene oxide deposited during functionalized modification of the existing non-woven fabric product, and provides a functional environment-friendly non-woven fabric and a preparation method thereof.
The invention aims to provide a functional environment-friendly non-woven fabric.
The invention also aims to provide a preparation method of the functional environment-friendly non-woven fabric.
The above purpose of the invention is realized by the following technical scheme:
a functional environment-friendly non-woven fabric comprises a non-woven fabric substrate layer and a functional coating;
a transition layer is arranged between the non-woven fabric substrate layer and the functional coating;
the transition layer comprises nano powder;
the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer;
the functional coating comprises graphene oxide.
Above-mentioned technical scheme is through embedding nano powder on non-woven fabrics substrate layer surface to form middle transition layer, at first, nano powder in the embedding non-woven fabrics substrate can firmly be fixed in the hole of non-woven fabrics substrate, is difficult to take place to break away from, and because nano powder particle size is little, specific surface area is big, and surface energy is high, consequently has stronger adsorption efficiency, can effectual absorption fixed functional coating, avoids the oxidation graphite alkene in the functional coating to take place to break away from.
Preferably, nano metal powder is embedded between the graphene oxide layers.
According to the technical scheme, the nano metal powder is further embedded between the graphene oxide layers, so that a strong interaction can be formed between the nano metal powder and the nano powder in the transition layer, the adsorption acting force between the graphene oxide and the transition layer is further improved, and the separation between the graphene oxide and the non-woven fabric substrate layer is avoided.
Preferably, the nano powder is a nano magnetic powder.
Preferably, the nano magnetic powder is nano ferroferric oxide powder.
Preferably, the nano metal powder is nano iron powder.
Above-mentioned technical scheme has magnetic nanometer ferroferric oxide powder through further embedding between oxidation graphite alkene layer, and the nanocrystallization of ferroferric oxide powder not only can realize the effective distribution between oxidation graphite alkene layer, can form magnetic interaction simultaneously with between the nanometer iron powder in the transition layer, has further promoted the adsorption affinity between functional coating and the non-woven fabrics substrate layer, and in addition, the function that makes the non-woven fabrics is more abundant in the introduction of magnetic powder.
Preferably, the functional coating also comprises PVDF resin; the mass ratio of the PVDF resin to the graphene oxide is 5: 1-10: 1.
according to the technical scheme, the PVDF resin with good bonding strength is introduced into the functionalized coating, so that the cohesive strength of the surface coating is improved.
A preparation method of a functional environment-friendly non-woven fabric comprises the following specific preparation steps:
preparing functional coating slurry:
and (2) mixing PVDF resin and graphene oxide according to a mass ratio of 5: 1-10: 1, taking materials, adding a solvent which is 5-10 times of the mass of PVDF, and uniformly dispersing to obtain functional coating slurry;
forming a transition layer:
spraying the nano powder to the surface of the non-woven fabric substrate layer through a plasma generator so that the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer;
preparation of the product:
coating the functional coating slurry on the surface of the transition layer, and controlling the thickness of the dry film of the functional coating slurry to be 5-50 mu m to obtain the functional environment-friendly non-woven fabric.
According to the technical scheme, the nano powder is impacted by the plasma generator to form the nano powder to be embedded into the surface of the non-woven fabric substrate layer, and pores are formed on the surface of the non-woven fabric substrate layer and effectively embedded into the non-woven fabric substrate layer in the impacting process; on the other hand, the refined nano powder can be effectively embedded into the surface of the non-woven fabric substrate layer to form a transition layer, and firm physical anchoring combination is formed between the transition layer and the substrate layer.
Preferably, the graphene oxide is modified graphene oxide, and the preparation process of the modified graphene oxide is as follows:
mixing graphene oxide and water according to a mass ratio of 1: 10-1: 15, obtaining a dispersion liquid after ultrasonic dispersion, then adding dopamine accounting for 1-3% of the mass of the graphene oxide under the protection of inert gas, continuing ultrasonic dispersion, then adding a metal salt solution accounting for 10-20% of the mass of the dispersion liquid, performing microwave ultrasonic reaction for 1-3 hours, and performing suction filtration, washing and drying to obtain the modified graphene oxide.
Preferably, the metal salt solution is an iron salt solution; the ferric salt is any one of ferrous chloride, ferrous sulfate, ferrous nitrate, ferric chloride, ferric sulfate and ferric nitrate.
Preferably, the nano powder is nano magnetic powder; the nano magnetic powder is nano ferroferric oxide powder.
The invention has the following beneficial effects:
(1) according to the invention, the non-woven fabric substrate is functionalized by adopting the graphene oxide, and in addition, the transition layer is designed between the graphene oxide and the non-woven fabric substrate, the transition layer is combined with the non-woven fabric substrate in a physical anchoring manner, and the adsorption force between the transition layer and the functional coating is improved by utilizing the interaction force between the powder, so that the separation of the transition layer and the functional coating is avoided;
(2) according to the technical scheme, the magnetic powder is further introduced, so that the functional effect is improved, and meanwhile, the interaction force between the transition layer and the functional coating can be further improved due to the magnetic attraction effect between the magnetic powder.
Detailed Description
The present invention is further illustrated by the following specific examples, which are not intended to limit the invention in any way. Reagents, methods and apparatus used in the present invention are conventional in the art unless otherwise indicated.
Unless otherwise indicated, reagents and materials used in the following examples are commercially available.
Example 1
Preparing modified graphene oxide:
mixing graphene oxide and water according to a mass ratio of 1: 10, performing ultrasonic dispersion for 30min under the conditions that the ultrasonic frequency is 60kHz and the temperature is 55 ℃ to obtain dispersion liquid, then adding dopamine accounting for 1 percent of the mass of graphene oxide into the dispersion liquid under the protection of nitrogen gas, continuing the ultrasonic dispersion for 30min, then adding metal salt solution accounting for 5 percent of the mass of the dispersion liquid and accounting for 10 percent of the mass of the dispersion liquid, performing microwave ultrasonic reaction for 1h under the conditions that the microwave power is 300W and the ultrasonic frequency is 45kHz, performing suction filtration, washing and drying to obtain modified graphene oxide; the metal salt solution is an iron salt solution; the ferric salt is ferrous chloride;
preparing functional coating slurry:
and (2) mixing PVDF resin and modified graphene oxide according to a mass ratio of 5: 1, taking materials, adding a solvent NMP (N-methyl pyrrolidone) with the mass 5 times of that of PVDF (polyvinylidene fluoride), stirring and dispersing for 1h at constant temperature by using a stirrer at the rotating speed of 600r/min at the temperature of 45 ℃, and discharging to obtain functional coating slurry;
forming a transition layer:
spraying the nano powder onto the surface of the non-woven fabric substrate layer through a plasma generator so that the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer to form a transition layer with the thickness of 10% of the thickness of the non-woven fabric substrate layer; the nano powder is nano magnetic powder; the nano magnetic powder is nano ferroferric oxide;
preparation of the product:
and coating the functional coating slurry on the surface of the transition layer, controlling the thickness of a dry film of the functional coating slurry to be 5 mu m, and drying after coating to obtain the functional environment-friendly non-woven fabric.
Example 2
Preparing modified graphene oxide:
mixing graphene oxide and water according to a mass ratio of 1: 12, performing ultrasonic dispersion for 50min under the conditions that the ultrasonic frequency is 70kHz and the temperature is 60 ℃ to obtain dispersion liquid, then adding dopamine accounting for 2% of the mass of graphene oxide into the dispersion liquid under the protection of nitrogen gas, continuing the ultrasonic dispersion for 50min, then adding metal salt solution accounting for 8% of the mass of the dispersion liquid and accounting for 15% of the mass of the dispersion liquid, performing microwave ultrasonic reaction for 2h under the conditions that the microwave power is 400W and the ultrasonic frequency is 50kHz, performing suction filtration, washing and drying to obtain modified graphene oxide; the metal salt solution is an iron salt solution; the ferric salt is ferric chloride;
preparing functional coating slurry:
and (2) mixing PVDF resin and modified graphene oxide according to a mass ratio of 8: 1, taking materials, adding a solvent NMP (N-methyl pyrrolidone) with the mass of 8 times that of the PVDF, stirring and dispersing for 2 hours at constant temperature by using a stirrer at the rotating speed of 800r/min at the temperature of 48 ℃, and discharging to obtain functional coating slurry;
forming a transition layer:
spraying the nano powder onto the surface of the non-woven fabric substrate layer through a plasma generator so that the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer to form a transition layer with the thickness of 15% of the thickness of the non-woven fabric substrate layer; the nano powder is nano magnetic powder; the nano magnetic powder is nano ferroferric oxide;
preparation of the product:
and coating the functional coating slurry on the surface of the transition layer, controlling the thickness of a dry film of the functional coating slurry to be 30 mu m, and drying after coating to obtain the functional environment-friendly non-woven fabric.
Example 3
Preparing modified graphene oxide:
mixing graphene oxide and water according to a mass ratio of 1: 15, performing ultrasonic dispersion for 60min under the conditions that the ultrasonic frequency is 80kHz and the temperature is 65 ℃ to obtain dispersion liquid, then adding dopamine accounting for 3% of the mass of the graphene oxide into the dispersion liquid under the protection of nitrogen gas, continuing the ultrasonic dispersion for 60min, then adding metal salt solution accounting for 20% of the mass of the dispersion liquid and accounting for 10% of the mass of the dispersion liquid, performing microwave ultrasonic reaction for 3h under the conditions that the microwave power is 500W and the ultrasonic frequency is 60kHz, performing suction filtration, washing and drying to obtain modified graphene oxide; the metal salt solution is an iron salt solution; the ferric salt is ferrous nitrate;
preparing functional coating slurry:
PVDF resin and modified graphene oxide are mixed according to the mass ratio of 10: 1, taking materials, adding a solvent NMP with the mass 10 times of that of PVDF, stirring and dispersing for 3 hours at a constant temperature by a stirrer at the rotating speed of 1000r/min at the temperature of 50 ℃, and discharging to obtain functional coating slurry;
forming a transition layer:
spraying the nano powder onto the surface of the non-woven fabric substrate layer through a plasma generator so that the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer to form a transition layer with the thickness of 20% of that of the non-woven fabric substrate layer; the nano powder is nano magnetic powder; the nano magnetic powder is nano ferroferric oxide;
preparation of the product:
and coating the functional coating slurry on the surface of the transition layer, controlling the thickness of a dry film of the functional coating slurry to be 50 mu m, and drying after coating to obtain the functional environment-friendly non-woven fabric.
Comparative example 1
Preparing modified graphene oxide:
mixing graphene oxide and water according to a mass ratio of 1: 10, performing ultrasonic dispersion for 30min under the conditions that the ultrasonic frequency is 60kHz and the temperature is 55 ℃ to obtain dispersion liquid, then adding dopamine accounting for 1 percent of the mass of graphene oxide into the dispersion liquid under the protection of nitrogen gas, continuing the ultrasonic dispersion for 30min, then adding metal salt solution accounting for 5 percent of the mass of the dispersion liquid and accounting for 10 percent of the mass of the dispersion liquid, performing microwave ultrasonic reaction for 1h under the conditions that the microwave power is 300W and the ultrasonic frequency is 45kHz, performing suction filtration, washing and drying to obtain modified graphene oxide; the metal salt solution is an iron salt solution; the ferric salt is ferrous chloride;
preparing functional coating slurry:
and (2) mixing PVDF resin and modified graphene oxide according to a mass ratio of 5: 1, taking materials, adding a solvent NMP (N-methyl pyrrolidone) with the mass 5 times of that of PVDF (polyvinylidene fluoride), stirring and dispersing for 1h at constant temperature by using a stirrer at the rotating speed of 600r/min at the temperature of 45 ℃, and discharging to obtain functional coating slurry;
preparation of the product:
and coating the functional coating slurry on the surface of the non-woven fabric substrate layer, controlling the thickness of a dry film of the functional coating slurry to be 5 mu m, and drying after coating to obtain the functional environment-friendly non-woven fabric.
Comparative example 2
This comparative example uses an aluminum nitrate solution instead of a ferrous chloride solution, as compared to example 1, with the remaining conditions remaining unchanged.
The products obtained in examples 1-3 and comparative examples 1-2 were tested for their performance, the specific test methods and test results are as follows:
cutting the product into 20cm multiplied by 10cm in size, washing the product with water for 3 times, soaking the product in deionized water, adding 5g of sodium dodecyl benzene sulfonate, stirring and dissolving the product, continuously soaking the product for 10 days at room temperature, washing the product with water for 3 times after soaking, collecting washing liquid, combining the washing liquid with the corresponding soaked water, concentrating and drying the washing liquid to constant weight, weighing the weight of the residue, wherein the more the residue, the more the separated substances are, and the specific test results are shown in table 1:
table 1: product performance test results
As can be seen from the test results in Table 1, only a small amount of non-woven fabric fibers of the product obtained by the invention fall off during the long-time soaking process of the aqueous solution of the surfactant, and no obvious rest of the pulverized materials appear, so that the functional coating on the surface is firmly adhered and does not obviously fall off.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A functional environment-friendly non-woven fabric is characterized by comprising a non-woven fabric base material layer and a functional coating;
a transition layer is arranged between the non-woven fabric substrate layer and the functional coating;
the transition layer comprises nano powder;
the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer;
the functional coating comprises graphene oxide.
2. The functional environment-friendly non-woven fabric according to claim 1, wherein nano metal powder is embedded between graphene oxide layers.
3. The functional environment-friendly non-woven fabric according to claim 1, wherein the nano powder is nano magnetic powder.
4. The functional environment-friendly non-woven fabric according to claim 3, wherein the nano magnetic powder is nano ferroferric oxide powder.
5. The functional environment-friendly non-woven fabric according to claim 2, wherein the nano metal powder is nano iron powder.
6. The functional environment-friendly non-woven fabric according to claim 1, wherein the functional coating further comprises PVDF resin; the mass ratio of the PVDF resin to the graphene oxide is 5: 1-10: 1.
7. a preparation method of a functional environment-friendly non-woven fabric is characterized by comprising the following specific preparation steps:
preparing functional coating slurry:
and (2) mixing PVDF resin and graphene oxide according to a mass ratio of 5: 1-10: 1, taking materials, adding a solvent which is 5-10 times of the mass of PVDF, and uniformly dispersing to obtain functional coating slurry;
forming a transition layer:
spraying the nano powder to the surface of the non-woven fabric substrate layer through a plasma generator so that the nano powder is at least partially or completely embedded into the non-woven fabric substrate layer;
preparation of the product:
coating the functional coating slurry on the surface of the transition layer, and controlling the thickness of the dry film of the functional coating slurry to be 5-50 mu m to obtain the functional environment-friendly non-woven fabric.
8. The method for preparing the functional environment-friendly non-woven fabric according to claim 6, wherein the graphene oxide is modified graphene oxide, and the preparation process of the modified graphene oxide is as follows:
mixing graphene oxide and water according to a mass ratio of 1: 10-1: 15, obtaining a dispersion liquid after ultrasonic dispersion, then adding dopamine accounting for 1-3% of the mass of the graphene oxide under the protection of inert gas, continuing ultrasonic dispersion, then adding a metal salt solution accounting for 10-20% of the mass of the dispersion liquid, performing microwave ultrasonic reaction for 1-3 hours, and performing suction filtration, washing and drying to obtain the modified graphene oxide.
9. The method for preparing the functional environment-friendly non-woven fabric according to claim 8, wherein the metal salt solution is an iron salt solution; the ferric salt is any one of ferrous chloride, ferrous sulfate, ferrous nitrate, ferric chloride, ferric sulfate and ferric nitrate.
10. The method for preparing the functional environment-friendly non-woven fabric according to claim 7, wherein the nano powder is nano magnetic powder; the nano magnetic powder is nano ferroferric oxide powder.
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| CN113832741B (en) * | 2021-09-28 | 2024-05-03 | 宁波中拓新材料科技有限公司 | Nano-powder modified non-woven fabric and preparation method thereof |
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