CN106833253B - A kind of hydrophobic material and preparation method thereof - Google Patents
A kind of hydrophobic material and preparation method thereof Download PDFInfo
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- CN106833253B CN106833253B CN201710107540.3A CN201710107540A CN106833253B CN 106833253 B CN106833253 B CN 106833253B CN 201710107540 A CN201710107540 A CN 201710107540A CN 106833253 B CN106833253 B CN 106833253B
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- Prior art keywords
- preparation
- dehydrated alcohol
- hydrophobic material
- magnesium hydroxide
- stearic acid
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- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 81
- 239000000463 material Substances 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 239000011777 magnesium Substances 0.000 claims abstract description 34
- 239000000843 powder Substances 0.000 claims abstract description 30
- 239000005011 phenolic resin Substances 0.000 claims abstract description 29
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 25
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000008117 stearic acid Substances 0.000 claims abstract description 25
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 23
- 230000005661 hydrophobic surface Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 33
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 31
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 23
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 22
- 239000011521 glass Substances 0.000 claims description 21
- 239000000347 magnesium hydroxide Substances 0.000 claims description 19
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 19
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 238000010304 firing Methods 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000002386 leaching Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000003999 initiator Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229920003986 novolac Polymers 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 229920006254 polymer film Polymers 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 8
- -1 stearic acid modified magnesium hydroxide Chemical class 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 22
- 238000000926 separation method Methods 0.000 description 20
- 239000011248 coating agent Substances 0.000 description 17
- 238000000576 coating method Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 17
- 238000002474 experimental method Methods 0.000 description 12
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 10
- 235000019198 oils Nutrition 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000006748 scratching Methods 0.000 description 3
- 230000002393 scratching effect Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000003075 superhydrophobic effect Effects 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229920004934 Dacron® Polymers 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 101000878457 Macrocallista nimbosa FMRFamide Proteins 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002902 bimodal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229960004756 ethanol Drugs 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000011850 water-based material Substances 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
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09D161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of hydrophobic material and preparation method thereof, the hydrophobic material by substrate and it is hydrophobic surface coated constitute, wherein surface covering is by stearic acid modified magnesium hydroxide ((Mg (OH)2) powder and phenolic resin constitutes.The preparation method of the hydrophobic material is simple, and obtained hydrophobic material is not only applied widely, but also can still keep its good self-cleaning property and higher water-oil separating efficiency under complicated physical condition.
Description
Technical field
The invention belongs to Material Fields, in particular to a kind of hydrophobic material and preparation method thereof, by party's legal system
Standby hydrophobic material is not only applied widely, but also can still keep its good self-cleaning property under complicated physical condition
With higher water-oil separating efficiency.
Background technique
Hydrophobic material is since other excellent performances such as its self-cleaning property, oil and water separation capability be strong are increasingly by people
Concern, such as the based superhydrophobic thin films of booth vegetable, the conveying of miniflow free of losses liquid, the surface covering etc. of warship submarine.Very much
People has had been successfully prepared hydrophobic material, and these excellent performance applications of hydrophobic material into practice.For example, very
More scientists are reported to have succeeded and hydrophobic material are applied in water-oil separating field, and achieve good repercussion.Tai etc.
What people proposed is made the SiO with performances such as hydrophobic oleophilic oil, acid and alkali-resistance, oil-water separations with the method for electrostatic spinning2Polyacrylonitrile
Composite membrane (ming hang Tai, Peng Gao, Benny Yong Liang Tan, Darren Delai Sun, and James
O Leckie, ACS Appl.Mat.Interfaces., 2014,6,9393-9401)；Wang et al. is proposed modified SiO2
It is compound with thermoplastic polyurethane film, obtain the hydrophobic membrane materials (the Lifang Wang, Shengyang that efficiently separate grease
Yang, Jing Wang, Caifeng Wang, Li Chen, Mater.Lett., 2011,5,869-872)；Zhang et al. is proposed
By silane-modified SiO2Polyester dacron fabric, which is attached to, by the method for chemical vapor deposition obtains that there is excellent oil suction up
The textile material (Junping Zhang and Stefan Seeger, 2011,24,4699-4704) of property.Although passing through this
A little synthetic strategies have prepared the good material of hydrophobicity, but the hydrophobic material as prepared by these strategies is in intensity side
There is very big defect in face, cannot work under complicated mechanical condition well, and preparation process is cumbersome, largely limits
Their practical application.For these urgent problems to be solved, by Chen et al. proposition hydro-thermal method by hydroxyapatite nanometer
Line, which is filled into paper, is made hydrophobic material, not only makes it have higher physical toughness, but also preparation method is simple, increases
Its practical application value (Fei-Fei Chen, Ying-Jie Zhu, Zhi-Chao Xiong, Tuan-Wei Sun, and Yue-
Qin Shen, ACS Appl.Mat.Interfaces., 2016, DOI:10.1021/acsami.6b12838).
However there is the expensive raw material price for preparing hydrophobic material, process very complicated, the machine of product in the above conventional method
The problems such as tool performance is poor, therefore there is still a need for develop a kind of more succinct effective synthetic method.
Summary of the invention
It is of the invention to provide a kind of hydrophobic material and preparation method thereof, the preparation aiming at the problem that conventional method
Method is inexpensively convenient, by this method preparation hydrophobic material not only hydrophobic, automatically cleaning, in terms of show it is superior
Performance, and product price is cheap, is conducive to it and promotes the use of in various fields.
It is an object of the present invention to provide a kind of superior hydrophobic materials of mechanical performance, and the hydrophobic material is by base
Material and hydrophobic surface coated composition, wherein surface covering is by stearic acid modified magnesium hydroxide (Mg (OH)2) powder and phenolic aldehyde tree
Rouge is constituted.
Preferably, substrate described in hydrophobic material according to the present invention is selected from stainless (steel) wire, glass, cotton, high-intensitive
Woven fabric, nylon filter, thin polymer film, aluminium net, nickel screen and copper mesh etc..
Preferably, Mg (OH) in surface covering described in hydrophobic material according to the present invention2With stearic weight ratio
Preferably 3:1 to 10:1, further preferably 7:1 are still more preferably 7:1 to 9:1.
Preferably, phenolic aldehyde is calculated according to the surface area of substrate in surface covering described in hydrophobic material according to the present invention
The dosage of resin, preferably with respect to the surface area of every square meter of substrate, the dosage of phenolic resin is 3 to 10g, further preferably
5 to 10g, it is still more preferably 8g.
According to another aspect of the present invention, a kind of preparation method of hydrophobic material is provided, including is walked as follows
It is rapid:
1) first stearic acid is dissolved in dehydrated alcohol at 50 DEG C, magnesium hydroxide powder (average grain diameter 20 is then added
~30nm), it is evenly dispersed to keep stirring at 50 DEG C, it filters, the solid twice, obtained is washed with dehydrated alcohol and is put in 80 DEG C of baking ovens
6h or more is set, wherein magnesium hydroxide and dehydrated alcohol w/v are 1g Mg (OH)2: 2-10ml dehydrated alcohol；
2) substrate washes 15min with acetone, dehydrated alcohol, deionized water respectively under ultrasound condition, dries in 60 DEG C of baking ovens
For use；
3) by the evenly dispersed weight percent that is made in deionized water of phenolic resin for the phenol resin solution of 1-20%,
Selectively by substrate leaching in the solution 10 to 20min, or phenol resin solution brushed on substrate surface, so that relatively
In the surface area of every square meter of substrate, the amount of phenolic resin is 3 to 10g, further preferably 5 to 10g, still more preferably for
8g；
4) Surface Modification of Magnesium Hydroxide by Stearic Acid powder solid obtained in step 1) is crushed, crosses 400 mesh sieve, then will changes
The magnesium hydroxide powder of property is dispersed on the substrate surface for being coated with phenol resin solution, Microwave-assisted firing to 120 to
180 DEG C of reactions 10 to 50min, obtain hydrophobic material.
Preferably, Mg described in step 1) (OH)2It is preferably 3:1 to 10:1 with stearic weight ratio, further preferably
It is still more preferably 7:1 for 7:1 to 9:1.
Preferably, 0.5-5h, further preferably 0.5-2h are stirred described in step 1) at 50 DEG C, still more preferably for
1h。
Preferably, magnesium hydroxide described in step 1) and dehydrated alcohol w/v are 1g Mg (OH)2: 3-8ml is anhydrous
Ethyl alcohol, further preferably 1g Mg (OH)2: 4.5-5.5ml dehydrated alcohol.
Preferably, novolac solution concentration described in step 3) is preferably 10-20%, and more preferably 17%.
Preferably, 130 to 160 DEG C of Microwave-assisted firing described in step 4), preferably 150 DEG C, the reaction time be 10 to
30min, further preferably 20min.
Preparation method according to the present invention includes the following steps:
1) stearic acid modified Mg (OH) is prepared2
0.285g stearic acid is dissolved in 30ml dehydrated alcohol, 6.01g Mg (OH) then is added2Powder (average grain diameter
Evenly dispersed for 20~30nm), 50 DEG C of stirring 30min, filtering is washed twice, 60 DEG C of the solid powder of synthesis with dehydrated alcohol
2h is dried in baking oven.
2) stainless (steel) wire, glass, cotton, high-intensitive woven fabric, nylon filter, thin polymer film, aluminium net, nickel screen, copper mesh
Etc. the object of different soft and hards degree wash 15min under ultrasound condition with acetone, dehydrated alcohol, deionized water respectively as substrate,
It is dried in 60 DEG C of baking ovens stand-by；
3) the heat cured phenolic resin dispersion of 8g is in 40ml deionized water, and a variety of different substrates are respectively in resin solution
Middle leaching 10min, it is used as needed；
4) phenolic resin-stearic acid-Mg (OH) is prepared2It is hydrophobic surface coated
It is crushed with by Surface Modification of Magnesium Hydroxide by Stearic Acid powder solid obtained in step 1), crosses 400 mesh sieve, then will change
The magnesium hydroxide powder of property is evenly dispersed on substrate surface, and 20min is heated under the conditions of 150 DEG C of Microwave-assisted firing, can be obtained
To the hydrophobic material with good physical.
Preparation method according to the present invention is not added any crosslinking agent, organic solvent, initiator and is lured without using ultraviolet
It leads.
Beneficial effect
1, in the preparation method of hydrophobic material according to the present invention, raw material environmental protection, method is simple, obtained hydrophobic material
Mechanical strength；
2, preparation method according to the present invention do not add in the synthesis process any crosslinking agent, organic solvent, initiator and
Without using uv induction；
3, the hydrophobic material prepared according to the method for the present invention is still kept after 10 sand paper circulation frictions
150 ° or more of water contact angle illustrates it with superior physical mechanical property；
4, the hydrophobic material prepared according to the method for the present invention, respectively to n-hexane, petroleum ether, soya-bean oil, chloroform,
The mixed liquor of toluene and water is separated, and separation rate is attained by 92% or more；
5, the hydrophobic material prepared according to the method for the present invention, to n-hexane after 10 separation, separation rate is still
95% can so be reached；
6, preparation method according to the present invention, low in raw material price reduce the production cost of product, are conducive to industrialization promotion
It uses.
Detailed description of the invention
Fig. 1 is hydrophobic material preparation flow figure according to the present invention.
Fig. 2 is the hydrophobic material and reactant Mg (OH) prepared according to embodiment 12With stearic Fourier's infared spectrum
Scheme (FTIR).
Fig. 3 is the X ray diffracting spectrum (XRD) of the hydrophobic material and stainless (steel) wire that are prepared according to embodiment 1；
Fig. 4 is the display diagram of the hydrophobic material self-cleaning property prepared according to embodiment 1.
Fig. 5 is the scanning electron microscope (SEM) photograph (SEM) on the various hydrophobic material surfaces prepared according to embodiment 1,4,5 and 6.
Fig. 6 is contact angle (CA) the measurement figure of the hydrophobic material and water that are prepared according to embodiment 1.
Fig. 7 is according to hydrophobicity comparison diagram before and after scratching in the experiment of 1 measuring mechanical property of EXPERIMENTAL EXAMPLE.
Fig. 8 is according to friction testing schematic diagram in the experiment of 1 measuring mechanical property of EXPERIMENTAL EXAMPLE.
Fig. 9 is according to the water contact angle after rub cycle multiple periods in the experiment of 1 measuring mechanical property of EXPERIMENTAL EXAMPLE
Variation diagram.
Figure 10 is the difference of hydrophobicity and water resistance after the stainless (steel) wire coating according to meshes different in EXPERIMENTAL EXAMPLE 2
Figure.
Figure 11 is according to oil water separation process figure in EXPERIMENTAL EXAMPLE 3.
Figure 12 is the separation rate disparity map according to oil different in EXPERIMENTAL EXAMPLE 3.
Figure 13 is to connect according to after the stainless (steel) wire for covering hydrophobic coating in EXPERIMENTAL EXAMPLE 4 multiple water-oil separating circulation with water
The variation diagram of feeler and separation rate.
Specific embodiment
The hydrophobic material for the different substrate materials that method produced according to the present invention is prepared not only have excellent hydrophobicity and
Self-cleaning property is also equipped with preferable mechanical performance, good hydrophobicity can be still kept under complicated physical condition, from clearly
Clean property.
Using stearic acid and magnesium hydroxide as raw material in preparation method according to the present invention, common distribution is in dehydrated alcohol
In, it is reacted under stirring condition a period of time, then will filter in obtained solid powder baking oven and dry for use, the powder after drying exists
On the substrate that even adhesion had been cleaned to various differences under the cementation of phenolic resin, it can be obtained with excellent hydrophobicity
It can be with the hydrophobic material of mechanical performance.This preparation process is not necessarily to any complex experiment equipment, does not add any crosslinking agent, You Jirong
Agent, initiator and uv induction condition, green non-pollution, concise in technology is easy to operate, is that a kind of efficient quick is environmental-friendly
The method for preparing hydrophobic material.
There is no particular restriction for used phenolic resin in hydrophobic material according to the present invention and preparation method thereof, as long as its
It can be effectively fixedly secured modified magnesium hydroxide particle, such as commercial product bakelite B R P832682 can be used
(Shanghai Mike's woods biochemical technology Co., Ltd).
Mg described in preparation method according to the present invention (OH)2It is preferably 3:1 to 10:1 with stearic weight ratio,
Further preferably 7:1 to 9:1 is still more preferably 7:1, when the amount of magnesium hydroxide is very few, when being, for example, less than 3:1, is then applied
Layer hydrophobicity is insufficient, and oil-water separation is bad, and when the amount of magnesium hydroxide is excessive, when being greater than 10:1, then coating hydrophilic
Property is too strong, equally causes oil-water separation bad.
The amount of phenolic resin described in preparation method according to the present invention on substrate surface, relative to every square metre
The amount of the surface area of substrate, phenolic resin is 3 to 10g, further preferably 5 to 10g, is still more preferably 8g.Work as phenolic aldehyde
The amount of resin is very few, and when being, for example, less than 3g, coating adhesion is insufficient；When the amount of phenolic resin is excessive, when being greater than 10g, though
Right coating adhesion is met the requirements, but not economic enough and easy mesh blocking, so that oil-water separation declines.
Hereinafter, will be described in detail the present invention.Before doing so, it should be appreciated that in this specification and appended
Claims used in term should not be construed as being limited to general sense and dictionary meanings, and inventor should allowed
On the basis of the appropriate principle for defining term to carry out best interpretations, according to meaning corresponding with technical aspect of the invention and generally
Thought explains.Therefore, description presented herein is not intended to limitation originally merely for the sake of the preferred embodiment for illustrating purpose
The range of invention, it will thus be appreciated that without departing from the spirit and scope of the present invention, it can be obtained by it
His equivalents or improved procedure.
Following embodiment is enumerated only as the example of embodiment of the present invention, does not constitute any limit to the present invention
System, it will be appreciated by those skilled in the art that modification in the range of without departing from essence and design of the invention each falls within the present invention
Protection scope.Unless stated otherwise, reagent and instrument used in the following embodiment are commercially available product.
Embodiment 1
1) stearic acid modified Mg (OH)2Preparation
By 1.995g Mg (OH)2Powder (average grain diameter is 20~30nm) and 0.285g stearic acid are dispersed in 30ml
In dehydrated alcohol, 60 DEG C of stirring 30min, filtering is washed twice with dehydrated alcohol, is dried in 60 DEG C of baking ovens of solid powder of synthesis
2h；
2) 400 mesh stainless (steel) wires are washed under ultrasound condition with acetone, dehydrated alcohol, deionized water respectively as substrate
15min, drying is stand-by in 60 DEG C of baking ovens；
3) the heat cured phenolic resin of 8g (BR P832682 (Shanghai Mike's woods biochemical technology Co., Ltd)) is dispersed in
In 40ml deionized water, substrate soaks 10min in resin solution, used as needed, relative to the surface area of every square meter of substrate, phenol
The amount of urea formaldehyde is about 8g；
4) phenolic resin-stearic acid-Mg (OH) is prepared2Hydrophobic coating
The Surface Modification of Magnesium Hydroxide by Stearic Acid powder prepared in step 1) is evenly distributed in step 3) with 400 mesh sieve and is obtained
To the substrate surface for speckling with phenolic resin, heat 20min under the conditions of 150 DEG C of Microwave-assisted firing, can be obtained with excellent
The hydrophobic material of physical property.
As shown in Fig. 2, using Fourier's infrared spectrum (FTIR) to the hydrophobic material and reactant Mg (OH) of preparation2With it is hard
Resin acid is analyzed, and stearic acid is in 1701cm in FTIR spectrum figure-1Place the peak-C=O with Mg (OH)2After reaction
Vanish from sight, and in 1597cm-1And 1477cm-1The stretching vibration that the corresponding-C=O of typical carboxylate occurs in place is bimodal.
As shown in figure 3, carrying out crystal structure to the surface after stainless (steel) wire and coating using X ray diffracting spectrum (XRD)
Analysis, suggests the formation of magnesium stearate.
The self-cleaning property of the hydrophobic material rinses through water intuitive again after being polluted by inclined coating glass slide by dust
It obtains, as shown in figure 4, wherein a1It is the glass slide polluted by dust, a2And a3It is the process that dust is washed away with water, a4It is cleaning
Glass slide after complete dust.
Embodiment 2
1) stearic acid modified Mg (OH) is prepared2
By 1.995g Mg (OH)2Powder (average grain diameter be 20~30nm) and 0.2g stearic acid be dispersed in 30ml without
In water-ethanol, 60 DEG C of stirring 30min, filtering is washed twice with dehydrated alcohol, is dried in 60 DEG C of baking ovens of solid powder of synthesis
2h。
2) 400 mesh stainless (steel) wires are washed under ultrasound condition with acetone, dehydrated alcohol, deionized water respectively as substrate
15min, drying is stand-by in 60 DEG C of baking ovens；
3) the heat cured phenolic resin dispersion of 8g is in 40ml deionized water, and a variety of different substrates are respectively in resin solution
Middle leaching 10min, it is used as needed；
4) phenolic resin-stearic acid-Mg (OH) is prepared2
Magnesium hydroxide powder is evenly distributed on to the substrate table that phenolic resin is speckled with obtained in step 3) with 400 mesh sieve
Face heats 20min under the conditions of 150 DEG C of Microwave-assisted firing, the hydrophobic material with good physical can be obtained.
The modification Mg (OH) that embodiment 2 obtains2Powder is adhered to substrate surface by phenolic resin, although also having certain
Hydrophobicity, but the super-hydrophobicity of hydrophobic material described in embodiment 1 is not achieved, the reason is that stearic acid amount is very little, Mg (OH)2It is modified not
Sufficiently, its hydrophobic ability is caused to reduce.
Embodiment 3
1) stearic acid modified Mg (OH) is prepared2
By 1.995g Mg (OH)2Powder (average grain diameter is 20~30nm) and 0.665g stearic acid are dispersed in 30ml
In dehydrated alcohol, 60 DEG C of stirring 30min, filtering is washed twice with dehydrated alcohol, is dried in 60 DEG C of baking ovens of solid powder of synthesis
2h。
2) 400 mesh stainless (steel) wires are washed under ultrasound condition with acetone, dehydrated alcohol, deionized water respectively as substrate
15min, drying is stand-by in 60 DEG C of baking ovens；
3) the heat cured phenolic resin dispersion of 8g is in 40ml deionized water, and a variety of different substrates are respectively in resin solution
Middle leaching 10min, it is used as needed；
4) phenolic resin-stearic acid-Mg (OH) is prepared2Hydrophobic coating
Magnesium hydroxide powder is evenly distributed on to the substrate table that phenolic resin is speckled with obtained in step 3) with 400 mesh sieve
Face heats 20min under the conditions of 150 DEG C of Microwave-assisted firing, the hydrophobic material with good physical can be obtained.
The modification Mg (OH) that embodiment 3 obtains2Powder is adhered to substrate surface by phenolic resin, although also having certain
Hydrophobicity, but the super-hydrophobicity of hydrophobic material described in embodiment 1 is not achieved, the reason is that stearic acid amount is too many, still there is portion after reaction
Divide stearic acid remaining, stearic acid causes the hydrophobic ability of its product to reduce because of the presence of its hydrophilic carboxyl (- COOH).
Embodiment 4
In addition to use glass replace 400 mesh stainless (steel) wires as substrate other than, prepared according to the identical mode of embodiment 1 hydrophobic
Property material.
Embodiment 5
In addition to use cotton replace 400 mesh stainless (steel) wires as substrate other than, prepared according to the identical mode of embodiment 1 hydrophobic
Property material.
Embodiment 6
In addition to use corrugated paper replace 400 mesh stainless (steel) wires as substrate other than, prepared according to the identical mode of embodiment 1 thin
Water-based material.
Scanning electron microscope (SEM) is indicated to glass (a), 400 mesh stainless (steel) wires (b), cotton (c), corrugated paper (d) etc.
The configuration of surface of different substrate materials attachment front and back compares and analyzes, as shown in figure 5, wherein one column of figure left side respectively indicate scanning electricity
Unattached glass (a under sem observation1), 400 mesh stainless (steel) wire (b1), cotton (c1), corrugated paper (d1) configuration of surface, figure
Right side one arranges the configuration of surface for respectively corresponding the different substrates for being attached to hydrophobic coating, it can be seen that is attached to hydrophobic coating surface
It is made of the irregular sphere of many small nanostructures, increases its roughening.
Contact-angle measurement system (CA) is to differences such as glass (a), cotton (b), 400 mesh stainless (steel) wires (c), corrugated papers (d)
Hydrophobicity before and after substrate coating compares and analyzes, as shown in fig. 6, wherein a1、b1、c1、d1And a3、b3、c3、d3It respectively indicates
The water droplet form and its corresponding contact above glass, cotton, 400 mesh stainless (steel) wires, corrugated paper before not adhered to
Angle；a2、b2、c2、d2And a4、b4、c4、d4Respectively indicate the glass after being attached to hydrophobic coating, cotton, 400 mesh stainless (steel) wires, watt
Water droplet form and its corresponding contact angle above stupefied paper.As can be seen that untreated various matrix all do not reach
To super-hydrophobic, and the corresponding water contact angle of different substrates after attachment has all reached 150 ° or more, shows good dredge
It is aqueous.
EXPERIMENTAL EXAMPLE 1: measuring mechanical property experiment
Include scratch and frictional experiment two parts to according to the measuring mechanical property of the hydrophobic material prepared in embodiment.
The hydrophobic material of glass baseplate prepared in scratching experiment to embodiment 4 carries out vertical and horizontal direction scratch with stationery cutter, with not into
The glass for being attached to hydrophobic layer that row scratches processing compares, as a result such as Fig. 7 b1To b3Shown, water droplet can be rolled across easily
It is attached to the glass of hydrophobic layer, does not leave a bit trace, is passing through b4、b5Scratch processing after, water droplet still can leave no trace
Flow through the glass (b for being attached to hydrophobic layer in ground6To b8), it can be seen that glass surface is not much different compared with scratching processing before, still
So there is superior hydrophobic performance.
In frictional experiment, by taking the hydrophobic material of glass baseplate prepared by embodiment 4 as an example, its face down is placed on sand
On paper, the weight of a 100g weight is put above, and with tweezers by glass radial push 10cm, glass slide is rotated by 90 °, it is reversed to push
10cm, as a cycle, friction process is as shown in Figure 8；The water contact angle in rub cycle multiple periods is measured, as a result as schemed
Shown in 9, after 10 rub cycles, the water contact angle for measuring glass interface is still greater than 150 °, illustrates it by physical mechanical
Still there is hydrophobicity after processing.
EXPERIMENTAL EXAMPLE 2: the stainless (steel) wire of different meshes is hydrophobic and water-resistant capacity is tested
The stainless (steel) wire to different meshes is hydrophobic and the test of water-resistant capacity in, in addition to using 150,200,250,300
With the stainless (steel) wires of 500 meshes as substrate other than, prepare hydrophobic material according to the identical mode of embodiment 1.Use contact angle
Measuring system (CA) tests the water contact angle of the hydrophobic material prepared in these hydrophobic materials and embodiment 1 respectively, together
When the formula P=ρ gh highest water testing the stainless (steel) wires of different meshes respectively and can bear immerse pressure.As a result as schemed
Shown in 10, hydrophobic effect can be reached in the stainless (steel) wire by the different meshes for covering hydrophobic coating, and 400 meshes are not
The water contact angle of rust steel mesh can achieve highest 153.4 °；Meanwhile 400 the stainless (steel) wire of mesh can also bear 950.6Pa
The pressure of water.Therefore, the stainless (steel) wire of 400 meshes is selected to carry out water-oil separating measuring.
EXPERIMENTAL EXAMPLE 3: the measurement to different oily separation rates
In the measurement experiment of the water-oil separating rate to different oil, representational n-hexane, petroleum ether, three chloromethanes are selected
Alkane, toluene and soybean oil carry out water-oil separating experiment.In separating experiment, oil water mixture weight ratio is 1:1, with embodiment 1
400 mesh of preparation cover the stainless (steel) wire of hydrophobic coating as separation material, using oily-water seperating equipment (such as Figure 11), formula
S=m1/m2Calculate water-oil separating rate.The separation rate of different oil is as shown in figure 12, hydrophobic stainless (steel) wire separation prepared by embodiment 1
The separation rate of various oil can reach 92% or more, and the separation of n-hexane is particularly effective, and separation rate is up to 96%.
EXPERIMENTAL EXAMPLE 4: coating stainless (steel) wire water-oil separating is recycled
In the measurement experiment that coating stainless (steel) wire water-oil separating is recycled, representational n-hexane and water are selected
Weight ratio 1:1 mixing, the 400 mesh stainless (steel) wire hydrophobic materials prepared using embodiment 1 are filled as separation material using water-oil separating
It sets, formula S=m1/m2Calculate water-oil separating rate.After water-oil separating is recycled repeatedly, its separation rate and stainless steel are measured
The contact angle of net and water, as a result as shown in figure 13, the hydrophobic stainless (steel) wire prepared by the above method is by 10 greases point
From rear, still 151.3 ° of contact angle and 94.6% water-oil separating rate can be kept with water.It can be seen that hydrophobicity material
Material still has excellent super-hydrophobicity after 10 times are recycled.
Above embodiments are enumerated only as the example of embodiment of the present invention, do not constitute any limit to the present invention
System, it will be appreciated by those skilled in the art that modification in the range of without departing from essence and design of the invention each falls within the present invention
Protection scope.
Claims (14)
1. a kind of preparation method of the hydrophobic material for water-oil separating, includes the following steps:
1) first stearic acid is dissolved in dehydrated alcohol at 50 DEG C, the magnesium hydroxide powder that average grain diameter is 20~30nm is then added
End, it is evenly dispersed to keep stirring at 50 DEG C, it filters, the solid twice, obtained is washed with dehydrated alcohol and places 6h in 80 DEG C of baking ovens
More than, wherein magnesium hydroxide and dehydrated alcohol w/v are 1g Mg (OH)2: 2-10mL dehydrated alcohol, the Mg (OH)2
It is 7:1 with stearic weight ratio；
2) substrate washes 15min with acetone, dehydrated alcohol, deionized water respectively under ultrasound condition, and drying is stand-by in 60 DEG C of baking ovens；
3) by the evenly dispersed weight percent that is made in deionized water of phenolic resin for the phenol resin solution of 1-20%, by base
Material leaching in the solution 10 to 20min, or phenol resin solution is brushed on substrate surface, so that relative to every square metre of base
The surface area of material, the amount of phenolic resin are 3 to 10g；
4) Surface Modification of Magnesium Hydroxide by Stearic Acid powder solid obtained in step 1) is crushed, crosses 400 mesh sieve, it then will be modified
Magnesium hydroxide powder is dispersed on the substrate surface for being coated with phenol resin solution, and Microwave-assisted firing is to 120 to 180 DEG C
Reaction 10 to 50min, obtains hydrophobic material；
The preparation method does not add any crosslinking agent, organic solvent, initiator and does not use uv induction.
2. preparation method according to claim 1, which is characterized in that the substrate be selected from stainless (steel) wire, glass, cotton,
High-intensitive woven fabric, nylon filter, thin polymer film, aluminium net, nickel screen and copper mesh.
3. preparation method according to claim 1, which is characterized in that the dosage of phenolic resin described in step 3) be 5 to
10g。
4. the preparation method of the hydrophobic material according to claim 1 for water-oil separating, which is characterized in that step 3)
Described in phenolic resin dosage be 8g.
5. preparation method according to claim 1, which is characterized in that stirring carries out 0.5- at 50 DEG C described in step 1)
5h。
6. preparation method according to claim 1, which is characterized in that stirring carries out 0.5- at 50 DEG C described in step 1)
2h。
7. preparation method according to claim 1, which is characterized in that stirring carries out 1h at 50 DEG C described in step 1).
8. preparation method according to claim 1, which is characterized in that magnesium hydroxide described in step 1) and dehydrated alcohol weight
Measuring volume ratio is 1g Mg (OH)2: 3-8mL dehydrated alcohol.
9. preparation method according to claim 1, which is characterized in that magnesium hydroxide described in step 1) and dehydrated alcohol weight
Measuring volume ratio is 1g Mg (OH)2: 4.5-5.5mL dehydrated alcohol.
10. preparation method according to claim 1, which is characterized in that novolac solution weight percent described in step 3)
Concentration is 10-20%.
11. preparation method according to claim 1, which is characterized in that novolac solution weight percent described in step 3)
Concentration is 17%.
12. preparation method according to claim 1, which is characterized in that Microwave-assisted firing 130 described in step 4) to
160 DEG C, the reaction time is 10 to 30min.
13. preparation method according to claim 1, which is characterized in that Microwave-assisted firing described in step 4) is 150
DEG C, reaction time 20min.
14. the preparation method of hydrophobic material according to claim 1, includes the following steps:
1) stearic acid modified Mg (OH) is prepared2
0.285g stearic acid is dissolved in 30mL dehydrated alcohol, 1.995g Mg (OH) then is added2Powder, the Mg (OH)2
Powder average particle size is 20~30nm, evenly dispersed, 50 DEG C of stirring 30min, and filtering is washed twice with dehydrated alcohol, synthesis
2h is dried in 60 DEG C of baking ovens of solid powder；
2) 400 mesh stainless (steel) wires wash 15min with acetone, dehydrated alcohol, deionized water respectively as substrate under ultrasound condition, and 60
Drying is stand-by in DEG C baking oven；
3) the heat cured phenolic resin dispersion of 8g is molten in resin by the 400 mesh stainless (steel) wire of substrate in 40ml deionized water
10min is soaked in liquid, it is used as needed；
4) phenolic resin-stearic acid-Mg (OH) is prepared2It is hydrophobic surface coated
It is crushed with by Surface Modification of Magnesium Hydroxide by Stearic Acid powder solid obtained in step 1), crosses 400 mesh sieve, it then will be modified
Magnesium hydroxide powder is evenly dispersed on substrate surface, heats 20min under the conditions of 150 DEG C of Microwave-assisted firing, tool can be obtained
There is the hydrophobic material of good physical.
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| CN105820710A (en) * | 2016-04-22 | 2016-08-03 | 湖北大学 | Preparation method of high-strength superhydrophobic protective coating capable of practical application |
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