CN108505323B - Method for finishing substrate by super-hydrophobic oleophobic flame-retardant coating - Google Patents
Method for finishing substrate by super-hydrophobic oleophobic flame-retardant coating Download PDFInfo
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- CN108505323B CN108505323B CN201810314280.1A CN201810314280A CN108505323B CN 108505323 B CN108505323 B CN 108505323B CN 201810314280 A CN201810314280 A CN 201810314280A CN 108505323 B CN108505323 B CN 108505323B
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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
- D06M11/58—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 nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—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 nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
- D06M11/65—Salts of oxyacids of nitrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0015—Treating of wood not provided for in groups B27K1/00, B27K3/00 by electric means
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
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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
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/44—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen containing nitrogen and phosphorus
- D06M13/447—Phosphonates or phosphinates containing nitrogen atoms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/70—Hydrophobation treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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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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- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
- D06M2101/36—Aromatic polyamides
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- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/11—Oleophobic properties
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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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/30—Flame or heat resistance, fire retardancy properties
Abstract
The invention discloses a method for finishing a substrate by a super-hydrophobic oleophobic flame-retardant coating, which comprises the following steps of firstly preparing a substrate containing 2-30 bilayer modifications in a layer-by-layer self-assembly mode; and then, carrying out after-treatment on the treated substrate by using a fluorine-containing siloxane solution, and drying to obtain the super-hydrophobic oleophobic flame-retardant coating on the surface of the substrate. The finished base material has super-hydrophobic property, oleophobic property and excellent flame retardance, overcomes the defects that the existing layer-by-layer self-assembly coating has poor water resistance, the internal structure of the material is damaged by the traditional flame retardance method and the like, and is suitable for super-hydrophobic and oleophobic flame retardance modification of materials such as fabrics, woods, foams, plastics and the like.
Description
Technical Field
The invention belongs to the field of super-hydrophobic and oleophobic flame-retardant materials, and particularly relates to a method for finishing a substrate by a super-hydrophobic and oleophobic flame-retardant coating.
Background
Surface wettability is one of the important properties of solid surfaces, characterized by the contact angle with water. Surfaces with water contact angles of more than 150 degrees and rolling angles of less than 10 degrees are generally called super-hydrophobic surfaces; surfaces with contact angles greater than 150 ° to oil may be referred to as superoleophobic surfaces. The super-hydrophobic surface and the super-oleophobic surface have a self-cleaning function, have the advantages of water saving, energy saving, environmental protection and the like, are widely concerned by the scientific and industrial fields in recent years, and are one of the research hotspots of the current scientific field.
The wettability of a solid surface is affected by both the surface chemical composition and the roughness structure. When the contact angle of the water drop on the solid surface is more than 65 degrees, the existence of the surface rough structure is helpful for obtaining the super-hydrophobic surface. Researchers successfully prepare various materials with super-hydrophobic surfaces by constructing a surface rough structure on the surface of a hydrophobic material or constructing the surface rough structure on a non-hydrophobic surface and introducing a hydrophobic substance. Chinese patent CN102432742A discloses a preparation method of super-amphiphobic polymer and a method for applying the super-amphiphobic polymer to construct a super-amphiphobic surface, which can endow a substrate with good hydrophobicity and oleophobicity, and the obtained super-amphiphobic surface has good scrub resistance. However, the microspheres used in this method need to be dispersed in a fluorine-containing solvent, and are hazardous to human bodies and the environment during operation. Chinese patent CN101748461A discloses a preparation technology of super-amphiphobic surface, namely, performing two-step electrochemical treatment on aluminum or aluminum alloy, and then performing surface modification by using a fluorine-containing compound to obtain a surface with super-amphiphobic property. Chinese patent CN102021628A reports a preparation method of a metal titanium or titanium alloy super-oleophobic surface, wherein metal titanium or titanium alloy is subjected to primary anodic oxidation treatment to obtain a roughened surface with a micro-structure, then a layer of titanium dioxide nanotube array film is formed on the surface of the micro-structure through secondary anodic oxidation to obtain a micro-nano composite structured fine structure, and then the super-oleophobic and super-amphiphobic surface is obtained through the modification effect of a low surface energy substance. Although the above method is simple and easy, the electrochemical reaction of the substrate is required, and is limited to surface treatment of metal or alloy. Although some reports have been made on the surface treatment of polymeric materials such as fabrics, films, sheets, etc. (CN102432742A, CN102432781A, CN103588955A), there is less interest in simultaneously improving the flame retardant properties of polymeric materials.
In order to improve the flame retardant property of the super-hydrophobic oleophobic coating finished substrate and widen the application range of the super-hydrophobic oleophobic coating, the invention provides a method for finishing the substrate by the super-hydrophobic oleophobic coating.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for finishing a substrate by a super-hydrophobic oleophobic flame-retardant coating, the method is simple and feasible, and the finished substrate has super-hydrophobic property, oleophobic property and excellent flame retardance.
The method for finishing the substrate by the super-hydrophobic oleophobic flame-retardant coating comprises the following steps:
step 1: soaking the cleaned base material in a positively charged electrolyte solution for 1-15 minutes, taking out the base material, and washing the base material with deionized water to obtain a base material modified by a positively charged electrolyte layer; placing the substrate modified by the positively charged electrolyte layer in a negatively charged electrolyte solution to be soaked for 1-15 minutes, taking out the substrate and washing the substrate by using deionized water to finish the first bilayer self-assembly on the surface of the substrate;
step 2: repeating the treatment process in the step 1, and alternately treating in the electrolyte solution with positive electricity and the electrolyte solution with negative electricity for 2-30 times to obtain a base material modified by 2-30 bilayers;
and step 3: and (3) carrying out after-treatment on the base material treated in the step (2) by adopting a fluorine-containing siloxane solution, and drying to obtain the super-hydrophobic oleophobic flame-retardant coating on the surface of the base material.
The positively charged electrolyte solution is an aqueous solution of silver nitrate, ferric nitrate, cerium nitrate, zirconium nitrate, ferric chloride, cerium chloride, zirconium chloride or tin chloride; the mass concentration of the positively charged electrolyte solution is 0.5-5%.
The negative electrolyte solution is an aqueous solution of aminotrimethylene phosphonic acid, ethylenediamine tetramethylene phosphonic acid, hexamethylenediamine tetramethylene phosphonic acid, diethylenetriamine pentamethylene phosphonic acid or triethylene tetramine hexamethylene phosphonic acid; the mass concentration of the negative electrolyte solution is 0.5-5%.
The fluorine-containing siloxane is tridecafluorooctyltrimethoxysilane, tridecafluorooctyltriethoxysilane, heptadecafluorodecyltrimethoxysilane or heptadecafluorodecyltriethoxysilane; the mass concentration of the fluorine-containing siloxane solution is 1-20%.
The finishing mode of the after-finishing is soaking or spraying.
The substrate is plastic, fabric, foam, film or glass.
According to the invention, metal ions and electrolyte containing phosphonic acid groups are assembled on the surface of the base material in a layer-by-layer self-assembly manner, and the base material is subjected to after-treatment by combining with the fluorine-containing siloxane, so that the base material can be endowed with good flame retardant property, and the hydrophobic and oleophobic properties of the surface of the base material are improved due to the introduction of the fluorine-containing siloxane. Compared with the prior art, the optional raw material source of the layer-by-layer self-assembly combined fluorine-containing siloxane after-finishing technology is wide, the prepared super-hydrophobic and oleophobic flame-retardant coating has no negative influence on the self property of the substrate, and the flame-retardant efficiency is high, so that the substrate can have excellent flame retardance, super-hydrophobicity and oleophobicity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of the present invention.
FIG. 2 is a diagram showing the hydrophobic and oleophobic effects of the cotton fabric prepared in example 1 of the present invention.
FIG. 3 is a scanning electron microscope picture of a cotton fabric prepared in example 1 of the present invention.
FIG. 4 is an electron photograph of a cotton fabric prepared according to example 1 of the present invention after a vertical burning test.
Fig. 5 is a graph of water contact angle versus time for aramid fabric prepared in example 2 of the present invention.
FIG. 6 is a graph of water contact angle versus time for cotton fabric prepared according to example 3 of the present invention.
Detailed Description
To further illustrate the technical solutions of the present invention, the following preferred embodiments of the present invention are described with reference to examples, but it should be understood that the descriptions are only for further illustrating the features and advantages of the present invention and are not to be construed as limiting the claims of the present invention. 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.
The raw materials and tests in examples 1-5 were funded by the national focus development program (2016YFC 0802802).
Example 1:
respectively preparing 0.5 percent (mass fraction) of ferric nitrate and diethylenetriamine pentamethylene phosphonic acid aqueous solution. Placing the cleaned cotton fabric in ferric nitrate solution to be soaked for 1 minute, taking out the cotton fabric, and washing the cotton fabric for 1 minute by using deionized water to obtain a base material modified by a positively charged electrolyte layer; placing the substrate modified by the positively charged electrolyte layer in a diethylenetriamine pentamethylene phosphonic acid solution to be soaked for 1 minute, taking out the substrate, and washing the substrate for 1 minute by using deionized water to complete the first bilayer self-assembly on the surface of the substrate; repeating the process, and alternately treating in a ferric nitrate solution and a diethylenetriamine pentamethylene phosphonic acid solution for 2 times to obtain a base material containing 2 bilayer modifications; and (2) carrying out after-treatment on the treated base material by adopting a 1% (mass fraction) heptadecafluorooctyltrimethoxysilane solution, and then drying to obtain the finished cotton fabric.
The hydrophobic and oleophobic effect graph of the cotton fabric prepared by the embodiment is shown in fig. 1, and as can be seen from fig. 1, the cotton fabric prepared by the embodiment has a good amphiphobic effect. Fig. 2 is a scanning electron microscope picture of the cotton fabric prepared in this embodiment, and it can be seen from fig. 2 that the coating prepared in this embodiment forms a micro-nano-scale coarse structure and is uniformly distributed on the surface of the cotton fiber. Fig. 3 is an electronic photograph of the cotton fabric prepared in the present example after the vertical burning test, and it can be seen from fig. 3 that the finished cotton fabric is automatically extinguished after leaving the flame.
Example 2:
respectively preparing 2 percent (mass fraction) of ferric nitrate and diethylenetriamine pentamethylene phosphonic acid aqueous solution. Soaking the cleaned aramid fabric in ferric nitrate solution for 5 minutes, taking out, and washing with deionized water for 1 minute to obtain a base material modified by the positively charged electrolyte layer; placing the substrate modified by the positively charged electrolyte layer in a diethylenetriamine pentamethylene phosphonic acid solution to be soaked for 5 minutes, taking out the substrate, and washing the substrate for 1 minute by using deionized water to complete the first bilayer self-assembly on the surface of the substrate; repeating the process, and alternately treating in ferric nitrate solution and diethylenetriamine pentamethylene phosphonic acid solution for 5 times to obtain a base material containing 5 bilayer modifications; and (3) carrying out after-treatment on the treated base material by adopting a heptadecafluorooctyl triethoxysilane solution with the mass fraction of 5%, and then drying to obtain the finished aramid fabric.
The water contact angle time-dependent change curve of the aramid fabric prepared in the example is shown in fig. 4, and it can be seen from fig. 4 that the unfinished aramid fabric shows good hydrophilicity, and the aramid fabric prepared in the example has super-hydrophobicity.
Example 3:
5 percent (mass fraction) of ferric nitrate and diethylenetriamine pentamethylene phosphonic acid aqueous solution are prepared respectively. Placing the cleaned cotton fabric in ferric nitrate solution to be soaked for 15 minutes, taking out the cotton fabric, and washing the cotton fabric for 5 minutes by using deionized water to obtain a base material modified by a positively charged electrolyte layer; placing the substrate modified by the positively charged electrolyte layer in a diethylenetriamine pentamethylene phosphonic acid solution to be soaked for 15 minutes, taking out the substrate, and washing the substrate for 5 minutes by using deionized water to complete the first bilayer self-assembly on the surface of the substrate; repeating the process, and alternately treating in a ferric nitrate solution and a diethylenetriamine pentamethylene phosphonic acid solution for 30 times to obtain a base material containing 30 bilayer modifications; and (3) carrying out after-treatment on the treated base material by adopting a heptadecafluorooctyltrimethoxysilane solution with the mass fraction of 20%, and then drying to obtain the finished cotton fabric.
The curve of the change of the water contact angle of the finished cotton fabric prepared in the embodiment along with the time is shown in fig. 5, and as can be seen from fig. 5, the unfinished cotton fabric has good hydrophilicity, and the water contact angle of the unfinished cotton fabric is reduced to zero after 120 seconds, while the water contact angle of the finished cotton fabric prepared in the embodiment reaches more than 150 degrees, and the finished cotton fabric shows super-hydrophobic performance.
Example 4:
respectively preparing 2 percent (mass fraction) of zirconium nitrate and aminotrimethylene phosphonic acid aqueous solution. Soaking the cleaned polyurethane soft foam in a zirconium nitrate solution for 5 minutes, taking out the polyurethane soft foam, and washing the polyurethane soft foam for 2 minutes by using deionized water to obtain a base material modified by a positively charged electrolyte layer; placing the substrate modified by the positively charged electrolyte layer in an amino trimethylene phosphonic acid solution for soaking for 5 minutes, taking out the substrate, and washing the substrate with deionized water for 2 minutes to complete the first bilayer self-assembly on the surface of the substrate; repeating the process, and alternately treating in a zirconium nitrate solution and an amino trimethylene phosphonic acid solution for 5 times to obtain a base material modified by 5 bilayers; and (3) performing after-treatment on the treated base material by adopting 5 percent (mass fraction) of tridecafluorooctyltrimethoxysilane solution, and then drying to obtain the finished polyurethane flexible foam.
Example 5:
5 percent (mass fraction) of tin chloride and hexamethylenediamine tetramethylene phosphonic acid aqueous solution are prepared respectively. Soaking the cleaned wood in a tin chloride solution for 15 minutes, taking out the wood, and washing the wood with deionized water for 5 minutes to obtain a base material modified by a positively charged electrolyte layer; placing the substrate modified by the positively charged electrolyte layer in a hexamethylenediamine tetramine phosphonic acid solution for soaking for 15 minutes, taking out the substrate, and washing the substrate by using deionized water for 5 minutes to complete the first bilayer self-assembly on the surface of the substrate; repeating the process, and alternately treating the solution in a tin chloride solution and a hexamethylenediamine tetramine phosphonic acid solution for 30 times to obtain a base material modified by 30 bilayers; and (3) performing after-treatment on the treated base material by adopting a 20% (mass fraction) tridecafluorooctyltriethoxysilane solution, and then drying to obtain the treated wood.
It can be seen from the above examples that the superhydrophobic oleophobic flame retardant coating prepared by the invention is uniformly distributed on the surface of the substrate, and the finished substrate has superhydrophobic and oleophobic properties and excellent flame retardancy.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A method for finishing a substrate by a super-hydrophobic oleophobic flame-retardant coating is characterized by comprising the following steps:
step 1: soaking the cleaned base material in a positively charged electrolyte solution for 1-15 minutes, taking out the base material, and washing the base material with deionized water to obtain a base material modified by a positively charged electrolyte layer; placing the substrate modified by the positively charged electrolyte layer in a negatively charged electrolyte solution to be soaked for 1-15 minutes, taking out the substrate and washing the substrate by using deionized water to finish the first bilayer self-assembly on the surface of the substrate;
step 2: repeating the treatment process in the step 1, and alternately treating in the electrolyte solution with positive electricity and the electrolyte solution with negative electricity for 2-30 times to obtain a base material modified by 2-30 bilayers;
and step 3: after-finishing the base material treated in the step 2 by adopting a fluorine-containing siloxane solution, and drying;
the positively charged electrolyte solution is an aqueous solution of silver nitrate, ferric nitrate, cerium nitrate, zirconium nitrate, ferric chloride, cerium chloride, zirconium chloride or tin chloride; the mass concentration of the positively charged electrolyte solution is 0.5-5%;
the negative electrolyte solution is an aqueous solution of aminotrimethylene phosphonic acid, ethylenediamine tetramethylene phosphonic acid, hexamethylenediamine tetramethylene phosphonic acid, diethylenetriamine pentamethylene phosphonic acid or triethylene tetramine hexamethylene phosphonic acid; the mass concentration of the negative electrolyte solution is 0.5-5%;
the fluorine-containing siloxane is tridecafluorooctyltrimethoxysilane, tridecafluorooctyltriethoxysilane, heptadecafluorodecyltrimethoxysilane or heptadecafluorodecyltriethoxysilane; the mass concentration of the fluorine-containing siloxane solution is 1-20%.
2. The method of claim 1, wherein:
the finishing mode of the after-finishing is soaking or spraying.
3. The method of claim 1, wherein:
the substrate is plastic, fabric, foam, film or glass.
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| CN110512419B (en) * | 2019-08-08 | 2021-11-02 | 东华大学 | Antibacterial flame-retardant cellulose and preparation and application thereof |
| CN111455659A (en) * | 2020-04-23 | 2020-07-28 | 宁波市中迪鞋业有限公司 | Waterproof and dustproof children garment fabric |
| CN113292880A (en) * | 2021-05-31 | 2021-08-24 | 四川大学 | High-weather-resistance flame-retardant super-amphiphobic coating capable of being adhered to surface of substrate and construction method thereof |
| CN117306262B (en) * | 2023-11-23 | 2024-03-12 | 泰和新材集团股份有限公司 | Aramid fiber with antifouling and antibacterial functions and preparation method thereof |
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| BR9815665A (en) * | 1998-02-13 | 2000-10-17 | Isle Firestop Limited | Method for flame retardant processing of textile materials |
| CN104711856A (en) * | 2015-02-02 | 2015-06-17 | 吉林大学 | Production method of self-repairing super-hydrophobic flame retardation coat layer |
| CN105755836B (en) * | 2016-04-25 | 2017-11-28 | 浙江大学宁波理工学院 | A kind of three flame-retardant modified ramie fabrics of component LBL self-assembly and preparation method thereof |
| CN105951419B (en) * | 2016-05-16 | 2017-12-12 | 中国科学技术大学 | A kind of polyester fiber for being crosslinked the modification of LBL self-assembly flame retardant coating and preparation method thereof |
| CN106632468B (en) * | 2016-11-22 | 2019-08-06 | 同济大学 | The preparation method of aminotrimethylenephosphonic acid metal salt fire retardant |
| CN106854370B (en) * | 2017-01-08 | 2019-08-23 | 上海工程技术大学 | A kind of supermolecule flame-proof silicon rubber and preparation method thereof |
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