CN110283482A - One kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating and its preparation method and application - Google Patents
One kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating and its preparation method and application Download PDFInfo
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- CN110283482A CN110283482A CN201910685399.4A CN201910685399A CN110283482A CN 110283482 A CN110283482 A CN 110283482A CN 201910685399 A CN201910685399 A CN 201910685399A CN 110283482 A CN110283482 A CN 110283482A
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- stearic acid
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- 238000000576 coating method Methods 0.000 title claims abstract description 130
- 239000011248 coating agent Substances 0.000 title claims abstract description 128
- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 97
- 235000021355 Stearic acid Nutrition 0.000 title claims abstract description 71
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 title claims abstract description 71
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000008117 stearic acid Substances 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 230000008439 repair process Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000000725 suspension Substances 0.000 claims abstract description 27
- 239000011701 zinc Substances 0.000 claims description 97
- 239000000758 substrate Substances 0.000 claims description 61
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 44
- 229920000742 Cotton Polymers 0.000 claims description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- 229910052802 copper Inorganic materials 0.000 claims description 27
- 239000010949 copper Substances 0.000 claims description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 239000011521 glass Substances 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- 239000011449 brick Substances 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 21
- 239000002904 solvent Substances 0.000 claims description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 15
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 13
- 239000000908 ammonium hydroxide Substances 0.000 claims description 13
- 244000144992 flock Species 0.000 claims description 13
- 239000002244 precipitate Substances 0.000 claims description 13
- 230000001680 brushing effect Effects 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 238000003618 dip coating Methods 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- -1 plank Substances 0.000 claims description 2
- 238000007761 roller coating Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 231100000252 nontoxic Toxicity 0.000 abstract description 5
- 230000003000 nontoxic effect Effects 0.000 abstract description 5
- 241000219146 Gossypium Species 0.000 description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 229910002651 NO3 Inorganic materials 0.000 description 12
- 239000002585 base Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 235000019441 ethanol Nutrition 0.000 description 6
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000002985 plastic film Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229960004756 ethanol Drugs 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000527 sonication Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
-
- 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
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- 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)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses one kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating and its preparation method and application, one kind can repair super-hydrophobic Zn (OH)2The preparation method of/stearic acid coating includes the following steps, S1, Zn (OH)2The preparation of suspension；S2, Zn (OH)2The preparation of/stearic acid coating.One kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating is prepared by above-mentioned method.One kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating is preparing the application in super-hydrophobic coat.The super-hydrophobic Zn (OH) that the present invention uses2/ stearic acid coating is nontoxic, is easy to large scale preparation, is at low cost, being convenient for industrialized production.And the Zn (OH) prepared2/ stearic acid coating is suitable for, have recoverability, illustrate excellent waterproof, self-cleaning function, water-oil separating, in terms of also have preferable application value.
Description
Technical field
The invention belongs to technical field of nano material, and in particular to a kind of Zn (OH)2The preparation side of/stearic acid water-repellent paint
Method and its application.
Background technique
Super hydrophobic surface is a kind of extreme moisture resistance surface, is greater than 150 ° with the contact angle of water, roll angle is lower than 10 °.
With characteristics such as waterproof, anti-icing, antibacterial, anticorrosion and automatically cleanings, the production such as automobile, building, agricultural, military affairs can be widely applied to
And the various aspects of life.And it is super-hydrophobic in surface of solids realization, it is mainly realized at present by two, first is that changing solid
The chemical constituent on surface；Second is that changing the micro-nano structure of the surface of solids, structured surface is realized.Therefore, it has had been developed that big
The physics of amount, chemical method change chemistry of solid surfaces ingredient and micro-structure, such as surface of solids plated film, coating, chemical vapor deposition
Product, Electrospun, electro-deposition, etching, photoetching etc..Unquestionably, it is the most straight that surface of solids modification is directly coated using coating
It connects and simple method.But the scope of application of many coating is small, and coats the poor adhesion of the coating and substrate that are formed later, very
It is easy to fall off, durability is poor, or even there are also many coating to contain noxious material, pollutes the environment, these problems hinder super
Large-scale application of the hydrophobic coating in real life production.Therefore environmental-friendly, mechanical stability is high, can repair, is corrosion-resistant,
The synthesising process research for the super hydrophobic coating that can be prepared on a large scale still is necessary.
Zinc hydroxide (Zn (OH)2) it is that a kind of preparation method is simple, lower-cost inorganic compound is nontoxic, can advise greatly
Mould preparation, is the ideal material for preparing super hydrophobic coating.But its surface can be not low enough, itself does not have superhydrophobic characteristic.And
It dissolves in highly basic and strong acid, this makes with Zn (OH)2Soda acid is not tolerated for the coating of substrate.Therefore, develop it is a kind of simple, at
This low, producible micro nano structure raw powder's production technology is necessary.
Summary of the invention
The present invention is in view of the above-mentioned problems, super-hydrophobic Zn (OH) can be repaired by providing one kind2The preparation method of/stearic acid coating,
Characterized by comprising the following steps:
S1, Zn (OH)2The preparation of suspension: the zinc nitrate of 2 parts by weight is added in solvent, after dissolution is sufficiently stirred, then plus
Enter the ammonium hydroxide of 1.5~2.0 parts by weight, after generating white flock precipitate, ultrasound 1 hour obtains Zn (OH)2Suspension；
S2, Zn (OH)2The preparation of/stearic acid coating: Xiang Suoshu Zn (OH)2The stearic acid of 0.2 parts by weight is added in suspension,
Stirring 7~10 hours to get the Zn (OH)2/ stearic acid coating.
Further, the dosage of the ammonium hydroxide is 1.8 parts by weight.
Further, the preparation of the suspension carries out at room temperature, and the solvent selects dehydrated alcohol
Or acetone.
Further, the dosage of the dehydrated alcohol and acetone is 35~50 parts by weight.
According to another aspect of the present invention, super-hydrophobic Zn (OH) can be repaired by providing one kind2/ stearic acid coating, in use
The method stated is prepared.
According to another aspect of the present invention, super-hydrophobic Zn (OH) can be repaired by providing one kind2/ stearic acid coating is super in preparation
Application in hydrophobic coating.
Further, the application is that the coating is coated on to substrate surface, 5 minutes dry at 60 DEG C, thus each
Super-hydrophobic coat is obtained in kind substrate.
Further, the coating method is dip-coating, brushing, spraying, showering or roller coating.
Further, the substrate is flexible substrates or rigid basement.
Further, the flexible substrates are cotton fabric, sponge, paper or copper mesh；The rigid basement is glass, wood
Plate, aluminium flake, brick or plastic plate.
Advantages of the present invention: the super-hydrophobic Zn (OH) that the present invention uses2/ stearic acid coating is nontoxic, be easy to large scale preparation,
It is at low cost, be convenient for industrialized production.And the Zn (OH) prepared2/ stearic acid coating is suitable for various rigid basements, such as glass
Glass, plank, sheet metal, brick, plastic plate etc. are also applied for various flexible substrates, such as cotton, copper mesh, sponge, paper.And
With recoverability, illustrate excellent waterproof, self-cleaning function, water-oil separating, in terms of also have preferable application
Value.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in more detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.
Fig. 1 is Zn (OH) prepared by embodiment 12/ stearic acid coating is coated in the formed super-hydrophobic coat of glass surface
XRD spectra.
Fig. 2 is Zn (OH) prepared by embodiment 12/ stearic acid coating is coated in the formed super-hydrophobic coat of cotton surface
SEM pattern photo.
Fig. 3 is Zn (OH) prepared by embodiment 12/ stearic acid coating is coated in the flexible base such as cotton fabric, sponge, paper, copper mesh
The rigid base foundation surfaces such as bottom and glass, plank, aluminium flake, brick, plastic plate coat coating and on the super-hydrophobic coat surface that obtains
Dye the digital photograph of water droplet.
Fig. 4 is the Zn (OH) prepared to embodiment 12After/stearic acid coating coats sonication treatment time and the processing of cotton
The relationship of sample surfaces contact angle.
Fig. 5 is the Zn (OH) prepared to embodiment 12After/stearic acid coating coats cotton, different pH value liquid impregnate coating
Cotton afterwards impregnates the relationship of front and back sample surfaces contact angle.
Fig. 6 is the Zn (OH) for impregnating common cotton in muddy water and coating the preparation of embodiment 12/ stearic acid coating it is super thin
The digital photograph and the digital photograph after taking-up of water coated cotton fabric.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
According to the present invention, a kind of typical embodiment is provided, one kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating
Preparation method, comprising the following steps:
S1:Zn (OH)2The preparation of suspension: at room temperature, by 2 parts by weight zinc nitrates (Zn (NO3)2•6H2O it) is added to
It fills in the beaker of solvent, and is sufficiently stirred, 1.5~2.0 parts by weight ammonia are completely dissolved and then be added thereto to zinc nitrate
Water (NH3•H2O), white flock precipitate is generated in beaker, is then ultrasonically treated 1 hour in ultrasonic pond, is ultimately formed Zn (OH)2
Suspension；
S2: super-hydrophobic Zn (OH)2The preparation of/stearic acid coating: to preparation Zn (OH)20.2 parts by weight are added in suspension
Stearic acid, using magnetic stirrer 8 hours to get super hydrophobic coating.
Wherein, above-mentioned solvent preferably uses dehydrated alcohol, and the dosage of the dehydrated alcohol is 35~50 parts by weight, preferably
39.5 parts by weight, solvent here select dehydrated alcohol, can dissolve zinc nitrate (Zn (NO3) simultaneously2•6H2O) and stearic acid, when
Right ethyl alcohol is a kind of conventional test solvent as solvent, is easy to get, this experiment is also an option that other solvents, illustratively such as
Acetone.
The dosage of above-mentioned ammonium hydroxide is preferably 1.8 parts by weight, more preferably 1.82 parts by weight.
According to the present invention, super-hydrophobic Zn (OH) can be repaired by providing one kind2/ stearic acid coating, is prepared by above method
It arrives, the coating being prepared is nontoxic, is easy to large scale preparation, is at low cost, being convenient for industrialized production.
According to the present invention, super-hydrophobic Zn (OH) can be repaired by providing one kind2/ stearic acid coating is in preparing super-hydrophobic coat
Using.
(1) Zn (OH) is realized in various substrates2The preparation of/stearic acid super-hydrophobic coat
Best-Effort request method: giving the flexible substrates such as cotton fabric, sponge, paper, copper mesh to coat coating respectively using Best-Effort request method,
Then in air at 60 DEG C dry 5 minutes to remove solvent, to obtain super-hydrophobic coat.
Brushing method: using brushing method to glass, plank, aluminium flake, brick surface coating paint, then in air 60
5 minutes are dried at DEG C to remove solvent, to obtain super-hydrophobic coat.
Spraying method: using spraying method to the rigid surfaces such as glass, plank, aluminium flake, brick and cotton fabric, sponge, paper,
The flexible substrates surface coating paint such as copper mesh, then in air at 60 DEG C dry 5 minutes to remove solvent, to obtain super thin
Water coating.
Showering method: using showering method to the rigid surfaces such as glass, plank, aluminium flake, brick and cotton fabric, sponge, paper,
The flexible substrates surface coating paint such as copper mesh, then in air at 60 DEG C dry 5 minutes to remove solvent, to obtain super thin
Water coating.
Rolling process: coating is coated to rigid surfaces such as glass, plank, aluminium flake, bricks using rolling process, then in sky
5 minutes are dried in gas at 60 DEG C to remove solvent, to obtain super-hydrophobic coat.
Using 1: giving the flexible base such as cotton fabric, sponge, paper, copper mesh, iron net, aluminium net respectively using above-mentioned Best-Effort request method
Bottom surface coats coating；The rigidity such as glass, plank, aluminium flake, brick, iron plate, copper sheet is given respectively using above-mentioned Best-Effort request method
Substrate surface coats coating.
Using 2: giving the flexible substrates table such as cotton fabric, sponge, paper, copper mesh, iron net, aluminium net respectively using above-mentioned brushing method
Face coats coating；The rigid base foundation surfaces such as glass, plank, aluminium flake, brick, iron plate, copper sheet are given respectively using above-mentioned brushing method
Coat coating.
Using 3: giving the flexible substrates table such as cotton fabric, sponge, paper, copper mesh, iron net, aluminium net respectively using above-mentioned spraying method
Face coats coating；The rigid base foundation surfaces such as glass, plank, aluminium flake, brick, iron plate, copper sheet are given respectively using above-mentioned spraying method
Coat coating.
Using 4: giving the flexible substrates table such as cotton fabric, sponge, paper, copper mesh, iron net, aluminium net respectively using above-mentioned showering method
Face coats coating；The rigid base foundation surfaces such as glass, plank, aluminium flake, brick, iron plate, copper sheet are given respectively using above-mentioned showering method
Coat coating.
Using 5: giving the flexible substrates table such as cotton fabric, sponge, paper, copper mesh, iron net, aluminium net respectively using above-mentioned rolling process
Face coats coating；The rigid base foundation surfaces such as glass, plank, aluminium flake, brick, iron plate, copper sheet are given respectively using above-mentioned rolling process
Coat coating.
Method described here and substrate (flexible substrates and rigid basement) have no certain corresponding relationship, with can be in substrate
It is main judgment criteria that surface, which prepares super-hydrophobic coat,.
(2) acid and alkali-resistance of super-hydrophobic coat in various substrates is tested
By two pieces of cottons of same coating super-hydrophobic coat be separately immersed in pH value be respectively 1 and 14 strong acid and strong base in 250
After minute, its ultra-hydrophobicity is tested respectively after further taking out drying.
(3) mechanical performance of super-hydrophobic coat in various substrates is tested
The cotton cloth impregnated for coating super-hydrophobic coat is ducked in drink, is then placed in ultrasonic pond ultrasound 60 minutes, divides after further taking out drying
Its ultra-hydrophobicity is not tested.
(4) the automatically cleaning application of super-hydrophobic coat in various substrates is tested
The cotton of common cotton and coating super-hydrophobic coat is separately immersed in muddy water, comparison clean level is then taken out.
Embodiment 1:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O it) is added to and fills the anhydrous second of 39.5 parts by weight
Alcohol (C2H5OH it in beaker), and is sufficiently stirred, 1.82 parts by weight ammonium hydroxide is completely dissolved and then be added thereto to zinc nitrate
(NH3•H2O), white flock precipitate is generated in beaker, is then ultrasonically treated 1 hour in ultrasonic pond, that is, is formed Zn (OH)2It suspends
Liquid.Again to Zn (OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 8 hours to get Zn
(OH)2/ stearic acid super hydrophobic coating.
Embodiment 2:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O) it is added to the anhydrous second for filling 35 parts by weight
Alcohol (C2H5OH it in beaker), and is sufficiently stirred, the ammonium hydroxide of 1.5 parts by weight is completely dissolved and then be added thereto to zinc nitrate
(NH3•H2O), white flock precipitate is generated in beaker, is then ultrasonically treated 1 hour in ultrasonic pond, that is, is formed Zn (OH)2It suspends
Liquid.Again to Zn (OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 7 hours to get Zn
(OH)2/ stearic acid super hydrophobic coating.
Embodiment 3:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O) it is added to the anhydrous second for filling 50 parts by weight
Alcohol (C2H5OH it in beaker), and is sufficiently stirred, the ammonium hydroxide of 2.0 parts by weight is completely dissolved and then be added thereto to zinc nitrate
(NH3•H2O), white flock precipitate is generated in beaker, is then ultrasonically treated 1 hour in ultrasonic pond, that is, is formed Zn (OH)2It suspends
Liquid.Again to Zn (OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 10 hours to get Zn
(OH)2/ stearic acid super hydrophobic coating.
Embodiment 4:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O it) is added to and fills the anhydrous of 39.5 parts by weight
Ethyl alcohol (C2H5OH it in beaker), and is sufficiently stirred, the ammonia of 2.0 parts by weight is completely dissolved and then be added thereto to zinc nitrate
Water (NH3•H2O), white flock precipitate is generated in beaker, is then ultrasonically treated 1 hour in ultrasonic pond, that is, is formed Zn (OH)2It is outstanding
Supernatant liquid.Again to Zn (OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 10 hours to get
Zn(OH)2/ stearic acid super hydrophobic coating.
Embodiment 5:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O it) is added to and fills the anhydrous of 39.5 parts by weight
Ethyl alcohol (C2H5OH it in beaker), and is sufficiently stirred, the ammonia of 1.8 parts by weight is completely dissolved and then be added thereto to zinc nitrate
Water (NH3•H2O), white flock precipitate is generated in beaker, is then ultrasonically treated 1 hour in ultrasonic pond, that is, is formed Zn (OH)2It is outstanding
Supernatant liquid.Again to Zn (OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 8 hours to get
Zn(OH)2/ stearic acid super hydrophobic coating.
Embodiment 6:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O it) is added to and fills 39.5 pbw acetones
It in beaker, and is sufficiently stirred, 1.82 parts by weight ammonium hydroxide (NH is completely dissolved and then be added thereto to zinc nitrate3•H2O), burn
White flock precipitate is generated in cup, is then ultrasonically treated 1 hour in ultrasonic pond, that is, forms Zn (OH)2Suspension.Again to Zn
(OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 8 hours to get Zn (OH)2/ stearic acid
Super hydrophobic coating.
Embodiment 7:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O) it is added to the burning for filling 35 pbw acetones
It in cup, and is sufficiently stirred, the ammonium hydroxide (NH of 1.5 parts by weight is completely dissolved and then be added thereto to zinc nitrate3•H2O), beaker
Then middle generation white flock precipitate is ultrasonically treated 1 hour in ultrasonic pond, that is, forms Zn (OH)2Suspension.Again to Zn (OH)2
The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 7 hours to get Zn (OH)2/ stearic acid is super
Hydrophobic coating.
Embodiment 8:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O) it is added to the burning for filling 50 pbw acetones
It in cup, and is sufficiently stirred, the ammonium hydroxide (NH of 2.0 parts by weight is completely dissolved and then be added thereto to zinc nitrate3•H2O), beaker
Then middle generation white flock precipitate is ultrasonically treated 1 hour in ultrasonic pond, that is, forms Zn (OH)2Suspension.Again to Zn (OH)2
The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 10 hours to get Zn (OH)2/ stearic acid is super
Hydrophobic coating.
Embodiment 9:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O it) is added to and fills 39.5 pbw acetones
It in beaker, and is sufficiently stirred, the ammonium hydroxide (NH of 2.0 parts by weight is completely dissolved and then be added thereto to zinc nitrate3•H2O), burn
White flock precipitate is generated in cup, is then ultrasonically treated 1 hour in ultrasonic pond, that is, forms Zn (OH)2Suspension.Again to Zn
(OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 10 hours to get Zn (OH)2/ stearic
Sour super hydrophobic coating.
Embodiment 10:
At room temperature, by the zinc nitrate of 2 parts by weight (Zn (NO3)2•6H2O it) is added to and fills 39.5 pbw acetones
It in beaker, and is sufficiently stirred, the ammonium hydroxide (NH of 1.8 parts by weight is completely dissolved and then be added thereto to zinc nitrate3•H2O), burn
White flock precipitate is generated in cup, is then ultrasonically treated 1 hour in ultrasonic pond, that is, forms Zn (OH)2Suspension.Again to Zn
(OH)2The stearic acid of 0.2 parts by weight is added in suspension, using magnetic stirrer 8 hours to get Zn (OH)2/ stearic
Sour super hydrophobic coating.
Experimental example 1:
The Zn (OH) that embodiment 1 is prepared2/ stearic acid super hydrophobic coating, using Best-Effort request method give respectively cotton fabric,
The flexible substrates such as sponge, paper, copper mesh coat coating, are applied using brushing method to glass, plank, aluminium flake, brick, plastic sheet surface
Coating is covered, coating number is 3 times.Then in air at 60 DEG C dry 5 minutes to remove solvent, thus in various substrates
Obtain super-hydrophobic coat.
Fig. 1 is to coat Zn (OH) in optional substrate of glass in the super-hydrophobic coat of various substrate surfaces preparation2/ stearic
Sour super hydrophobic coating, XRD spectra measured by the super-hydrophobic coat of formation, it is clear that the coating main ingredient of preparation is Zn (OH)2。
Fig. 2 is applied in optional cotton fabric substrate in all substrates in the super-hydrophobic coat of various substrate surfaces preparation
Cover the SEM surface topography map of super-hydrophobic coat, it is clear that it is a nanometer chip architecture that surface, which forms super-hydrophobic coat,.
Equally, XRD the and SEM pattern of coating and Fig. 1 and Fig. 2 have identical result in other substrates.
Experimental example 2:
The 2/ stearic acid super hydrophobic coating of Zn (OH) that embodiment 1 is prepared, using Best-Effort request method give respectively cotton fabric,
The flexible substrates such as sponge, paper, copper mesh coat coating, are applied using brushing method to glass, plank, aluminium flake, brick, plastic sheet surface
Coating is covered, coating number is 3 times.Then in air at 60 DEG C dry 5 minutes to remove solvent, thus in various substrates
Obtain super-hydrophobic coat.Then its wetability is tested using dyeing water droplet on its surface.
Fig. 3 be the flexible substrates such as paper (e), cotton fabric (f), copper mesh (g) or sponge (h) and glass (a), plastic plate (b),
The rigid base foundation surfaces such as plank (c) or aluminium flake (d) coating coating and dye water droplet in drop on the super-hydrophobic coat surface that obtains, send out
Super-hydrophobic state is presented in existing surface, and contact angle has reached 160oLeft and right, and the roll angle tested is respectively less than 5o.This obvious hair
The super hydrophobic coating of bright technology preparation meets the super-hydrophobic demand of various rigidity and flexible substrates.Certain other materials can also obtain
It obtains similarly as a result, such as brick, copper sheet, iron plate.
Experimental example 3:
The Zn (OH) that embodiment 1 is prepared2/ stearic acid super hydrophobic coating, using Best-Effort request method give respectively cotton fabric,
The flexible substrates such as sponge, paper, copper mesh coat coating, are applied using brushing method to glass, plank, aluminium flake, brick, plastic sheet surface
Coating is covered, coating number is 3 times.Then in air at 60 DEG C dry 5 minutes to remove solvent, thus in various substrates
Obtain super-hydrophobic coat.Finally, being then placed in ultrasonic 60 points of pond ultrasound for being immersed in the water in the cotton of coating super-hydrophobic coat
Clock tests its ultra-hydrophobicity after further taking out drying respectively.Same operation repeats in other substrates.
Fig. 4 is the pass to sample surfaces contact angle after the sonication treatment time of the cotton of coating super-hydrophobic coat and processing
System.It was found that passing through the ultrasonic treatment up to 60 minutes, surface contact angle is kept almost at 160oLeft and right is constant.Illustrate the coating with
The adhesiveness of substrate is preferable, and the coating also has certain self-repairability.In addition, the coating in other substrates is also shown
Same result.
Experimental example 4:
The Zn (OH) that embodiment 1 is prepared2/ stearic acid super hydrophobic coating, using Best-Effort request method give respectively cotton fabric,
The flexible substrates such as sponge, paper, copper mesh coat coating, are applied using brushing method to glass, plank, aluminium flake, brick, plastic sheet surface
Coating is covered, coating number is 2 times.Then in air at 60 DEG C dry 5 minutes to remove solvent, thus in various substrates
Obtain super-hydrophobic coat.Finally, it is respectively 1 and 14 that two pieces of cottons of same coating super-hydrophobic coat, which are separately immersed in pH value,
Strong acid and strong base in after 250 minutes, further take out drying after test its ultra-hydrophobicity respectively.Same operation is in other substrates
It repeats.
Fig. 5 is the relationship of sample surfaces contact angle after impregnating the liquid pH value of the cotton of coating super-hydrophobic coat and handling.
Due to giving substrate coating coating number to reduce in relatively preceding embodiment several times, causes its contact angle to decrease, become 155oIt is left
The right side, but still be super-hydrophobic.And by after 250 minutes strong acid and highly basic impregnate, surface contact angle is kept almost at 155oLeft and right is constant.Illustrate that the coating has good resistance to acid and alkali.It also observed identical result in other substrates.
Experimental example 5:
The Zn (OH) that embodiment 1 is prepared2/ stearic acid super hydrophobic coating, using Best-Effort request method give respectively cotton fabric,
The flexible substrates such as sponge, paper, copper mesh coat coating, are applied using brushing method to glass, plank, aluminium flake, brick, plastic sheet surface
Coating is covered, coating number is 3 times.Then in air at 60 DEG C dry 5 minutes to remove solvent, thus in various substrates
Obtain super-hydrophobic coat.Finally, the cotton of common cotton and coating super-hydrophobic coat is separately immersed in muddy water, then take out
Compare clean level.Same operation repeats in other substrates.
Fig. 6 is to impregnate the cotton of common cotton and coating super-hydrophobic coat in muddy water and the digital photograph after taking-up.Obviously
Being coated on cotton using coating prepared by the technology of the present invention has extraordinary automatically cleaning and water-proof function.And it shows
Water-oil separating, in terms of also have preferable application value.It also observed identical result in other substrates.
In conclusion the Zn (OH) that above embodiments 2-10 is prepared2/ stearic acid super hydrophobic coating, can also reach as
The similar experimental result of experimental example 1-5, there is the effect repaired in full substrate well, illustrates excellent waterproof, automatically cleaning
Function, water-oil separating, in terms of also have preferable application value.Full substrate described here is by flexible substrates and rigidity
Substrate composition, flexible substrates are cotton fabric, sponge, paper, copper mesh, iron net, aluminium net etc., rigid basement be glass, plank, aluminium flake,
Brick, plastic plate, iron plate, copper sheet etc..
Liquid-phase chemical reaction generation method of the invention has the characteristics that several: 1) Zn (OH)2Liquid-phase chemical reaction produces
Nano-powder structure, easily formation Nano sol, can be coated in various substrates, form the coating of nanostructured surface, favorably
It is super-hydrophobic in preparing；2) liquid phase environment is easily incorporate into low-surface-energy organic compound, such as stearic acid, on the one hand can will generate
Zn (OH)2Nano structured unit package, forms organic matter package Zn (OH)2Core-shell structure, at Zn (OH)2Surface forms one
Layer protective layer, can tolerate strong acid-base environment.On the other hand the low-surface-energy organic matter of incorporation is more conducive to generate super-hydrophobic, Er Qieyou
Machine object also acts as surface restoration agent, can repair super hydrophobic surface conducive to being formed.
The 2/ stearic acid coating of super-hydrophobic Zn (OH) that the present invention uses is nontoxic, is easy to large scale preparation, is at low cost, convenient for work
Industry metaplasia produces.And the 2/ stearic acid coating of Zn (OH) prepared be suitable for various rigid basements, as glass, plank, sheet metal,
Brick, plastic plate etc. are also applied for various flexible substrates, such as cotton, copper mesh, sponge, paper.And there is recoverability, exhibition
Shown excellent waterproof, self-cleaning function, water-oil separating, in terms of also have preferable application value.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. one kind can repair super-hydrophobic Zn (OH)2The preparation method of/stearic acid coating, which comprises the following steps:
S1, Zn (OH)2The preparation of suspension: the zinc nitrate of 2 parts by weight is added in solvent, after dissolution is sufficiently stirred, is added
The ammonium hydroxide of 1.5~2.0 parts by weight, after generating white flock precipitate, ultrasound 1 hour obtains Zn (OH)2Suspension；
S2, Zn (OH)2The preparation of/stearic acid coating: Xiang Suoshu Zn (OH)2The stearic acid of 0.2 parts by weight is added in suspension,
Stirring 7~10 hours to get the Zn (OH)2/ stearic acid coating.
2. according to claim 1 repair super-hydrophobic Zn (OH)2The preparation method of/stearic acid coating, which is characterized in that
In S1, the dosage of the ammonium hydroxide is 1.8 parts by weight.
3. according to claim 1 repair super-hydrophobic Zn (OH)2The preparation method of/stearic acid coating, which is characterized in that
In S1, the preparation of the suspension carries out at room temperature, and the solvent selects dehydrated alcohol or acetone.
4. according to claim 3 repair super-hydrophobic Zn (OH)2The preparation method of/stearic acid coating, which is characterized in that
The dosage of the dehydrated alcohol and acetone is 35~50 parts by weight.
5. one kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating, which is characterized in that using as described in claim 1-4 is any
Method be prepared.
6. super-hydrophobic Zn (OH) can be repaired as claimed in claim 52/ stearic acid coating is preparing the application in super-hydrophobic coat.
7. according to claim 6 repair super-hydrophobic Zn (OH)2/ stearic acid coating is preparing answering in super-hydrophobic coat
With, which is characterized in that it is described to prepare the application in super-hydrophobic coat as the coating is coated on substrate surface, it is done at 60 DEG C
Dry 5 minutes, to obtain super-hydrophobic coat in substrate.
8. according to claim 7 repair super-hydrophobic Zn (OH)2/ stearic acid coating is preparing answering in super-hydrophobic coat
With, which is characterized in that the coating method is dip-coating, brushing, spraying, showering or roller coating.
9. according to claim 7 repair super-hydrophobic Zn (OH)2/ stearic acid coating is preparing answering in super-hydrophobic coat
With, which is characterized in that the substrate is flexible substrates or rigid basement.
10. according to claim 9 repair super-hydrophobic Zn (OH)2/ stearic acid coating is preparing answering in super-hydrophobic coat
With, which is characterized in that the flexible substrates are cotton fabric, sponge, paper or copper mesh；The rigid basement is glass, plank, aluminium
Piece, brick or plastic plate.
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| CN112281472A (en) * | 2020-10-30 | 2021-01-29 | 西北师范大学 | Ag @ Zn (OH)2Preparation process of nanosheet conductive cotton cloth |
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| CN102101693A (en) * | 2010-12-29 | 2011-06-22 | 安徽理工大学 | Preparation method and application of double-function micro-nano hierarchical structural zinc oxide power |
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| CN102101693A (en) * | 2010-12-29 | 2011-06-22 | 安徽理工大学 | Preparation method and application of double-function micro-nano hierarchical structural zinc oxide power |
| CN106675339B (en) * | 2016-12-09 | 2019-06-11 | 湖北大学 | A kind of low-cost high-strength can repair the simple preparation method of super-hydrophobic coat |
| CN108047776A (en) * | 2017-12-18 | 2018-05-18 | 武汉理工大学 | It is a kind of to be used for the super hydrophobic coating of road surface anti-freezing ice and its preparation, construction method |
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| CN112281472A (en) * | 2020-10-30 | 2021-01-29 | 西北师范大学 | Ag @ Zn (OH)2Preparation process of nanosheet conductive cotton cloth |
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