CN105647251A - Preparation method and application of waterproofing agent for fiberboards - Google Patents
Preparation method and application of waterproofing agent for fiberboards Download PDFInfo
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- CN105647251A CN105647251A CN201610226541.5A CN201610226541A CN105647251A CN 105647251 A CN105647251 A CN 105647251A CN 201610226541 A CN201610226541 A CN 201610226541A CN 105647251 A CN105647251 A CN 105647251A
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- waterproofing agent
- hydrophobic particles
- preparation
- dispersant
- agent
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 70
- 238000004078 waterproofing Methods 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 239000011094 fiberboard Substances 0.000 title abstract 5
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 69
- 239000002245 particle Substances 0.000 claims abstract description 65
- 239000002270 dispersing agent Substances 0.000 claims abstract description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 17
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 18
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- YMWUJEATGCHHMB-UHFFFAOYSA-N dichloromethane Substances ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 16
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 16
- 239000004626 polylactic acid Substances 0.000 claims description 16
- 239000000839 emulsion Substances 0.000 claims description 14
- 229910021529 ammonia Inorganic materials 0.000 claims description 9
- 229920002050 silicone resin Polymers 0.000 claims description 9
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical compound C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 claims description 9
- 229940094989 trimethylsilane Drugs 0.000 claims description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 229910000077 silane Inorganic materials 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 6
- 239000012895 dilution Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 5
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 5
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 5
- -1 polyoxyethylene Polymers 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000002318 adhesion promoter Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 125000003700 epoxy group Chemical group 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- ZHKRBCQSLSTSAO-UHFFFAOYSA-N dodecyl(trimethyl)silane Chemical compound CCCCCCCCCCCC[Si](C)(C)C ZHKRBCQSLSTSAO-UHFFFAOYSA-N 0.000 abstract 1
- 238000009210 therapy by ultrasound Methods 0.000 abstract 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000005871 repellent Substances 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000008431 aliphatic amides Chemical class 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- XKZQEUJIZUWRQQ-UHFFFAOYSA-N hexadecyl(trimethyl)silane Chemical compound CCCCCCCCCCCCCCCC[Si](C)(C)C XKZQEUJIZUWRQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
- Paper (AREA)
Abstract
The invention relates to a preparation method and application of a waterproofing agent for fiberboards, and can effectively solve the technical problems of injuries to human bodies, higher cost and short service life in the waterproofing agent for fiberboards. The method comprises the following steps: adding 1.8-2.2g of tetraethyl orthosilicate and 2-7g of dodecyltrimethyl silane into 13-30ml of ethanol, gradually and dropwisely adding 6-9ml of 28 wt% aqua ammonia, stirring at room temperature for 5-8 hours, and drying by distillation under reduced pressure, thereby obtaining hydrophobic particles; and adding 5-20g of the hydrophobic particles into 90-110ml of dispersing agent, stirring uniformly, and carrying out ultrasonic treatment for 25-35 minutes, thereby obtaining the waterproofing agent. The waterproofing agent prepared by the method can be coated on a fiberboard, thereby effectively prolonging the waterproofness and service life of the fiberboard. The preparation method is simple and easy to operate, has the advantages of abundant raw materials, high production efficiency, high product quality, low cost, environment friendliness, long service life and huge economic and social benefits.
Description
Technical field
The present invention relates to the manufacture method of chemical field fibre board waterproofing agent, particularly a kind of waterproofing agent preparation method for fibrous plate and application thereof.
Background technology
Along with the development of building industry and home decoration industry, people are also more and more higher to the requirement of ornament materials. The method being generally used for buildings waterproof mainly has waterproof coiled material material and application type water-proof coating. Wherein the water-repellent paint of fibrous plate is easy to use, commonplace. The water-repellent paint of fibrous plate mainly has polyurethane water-proof paint, polrvinyl chloride, esters of acrylic acid water-repellent paint, but due to Problems existing in its component compatibility and preparation method, in use there is problems in that
(1) not environmentally. General coating adopts organic solvent, after volatilization, harmful.
(2) cost is high. Fluorinated compound can low be widely used with its surface in waterproof, but fluorinated monomer is costly.
(3) adhesive force is poor with resistance to ag(e)ing, and service life is short. Water-repellent paint and fiber can not durable attachment, elapse over time and peel off gradually, and some polymer strand under the conditions such as illumination changes, and causes hydraulic performance decline.
Therefore, the improvement on the waterproofing agent of fibrous plate and innovation are to need conscientiously to solve the technical problem that.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the purpose of the present invention is just to provide a kind of waterproofing agent preparation method for fibrous plate and application thereof, can effectively solve fibrous plate waterproofing agent to human injury, the technical problem that relatively costly, service life is short.
The technical scheme that this invention address that is: first preparing hydrophobic particles (hydrophobic particles is also known as hydrophobic nano-silica, as follows), method is:
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 1.8-2.2g and trimethyl silane 2-7g adds in ethanol 13-30ml, more progressively drips mass concentration 28% ammonia spirit 6-9ml, is stirred at room temperature 5-8 hour, evaporated under reduced pressure, obtains hydrophobic particles;
(2), it is mixed and made into waterproofing agent:
Described hydrophobic particles 5-20g is added in dispersant 90-110ml, stirs, supersound process 25-35min, it is waterproofing agent.
Waterproofing agent prepared by the inventive method, can be coated on fibre board, effectively extends fibre board water resistance and service life, abundant raw materials of the present invention, preparation method is simple, easily operates, and production efficiency is high, good product quality, cost is low, environmental protection, long service life, and economic and social benefit is huge.
Detailed description of the invention
Below in conjunction with concrete condition and embodiment, the specific embodiment of the present invention is elaborated.
The present invention can be provided by following example in being embodied as. The prepared waterproofing agent for fibrous plate of the embodiment of the present invention, is generally used for the fibrous plate that waste paper board etc. is made.
Embodiment 1
Hydrophobic hydrophobic particles and polylactic acid composite water-proof agent, its preparation method is:
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 1.8-2.2g and trimethyl silane 2-7g(are preferably 6g) add ethanol 13-30ml(and be preferably 20ml-25ml) in, progressively drip mass concentration 28% ammonia spirit 6-9ml again, it is stirred at room temperature 5-8 hour, evaporated under reduced pressure, obtains hydrophobic particles;
(2), it is mixed and made into waterproofing agent:
Described hydrophobic particles 5-20g is added in dispersant 90-110ml, stirs, supersound process 25-35min, it is waterproofing agent.
It should be noted that in all embodiments of the invention, prepared hydrophobic particles can join in the dispersant of any solvable (hydrophobic particles of preparation is solvable), such as the tetrahydrofuran solution etc. of ethanol, polymer. The dispersant of the present embodiment can also adopt the dispersant of the types such as fatty acid, aliphatic amide type and esters.
But hydrophobic particles is unstable in ethanol, it is easy to precipitation. And oxolane toxicity is big, hydrophobic nano-silica is dispersed in the tetrahydrofuran solution of polymer not environmentally.
Therefore the embodiment of the present invention also provides for two kinds of improvement for hydrophobic particles dispersant. The dichloromethane solution of optimum dispersant respectively polylactic acid and fluorine silicon resin emulsion.
It is further to note that hydrophobic particles prepared in the embodiment of the present invention is to be substantially the hydrophobic nano-silica with certain hydrophobic performance, the nano silicon prepared with other modes has qualitative difference.
Embodiment 2
During the present invention should be embodied as, prepared waterproofing agent is hydrophobic particles and polylactic acid composite water-proof agent, and its preparation method comprises the steps of
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 2g and trimethyl silane 6g adds in ethanol 25ml, more progressively drips mass concentration 28% ammonia spirit 6ml, is stirred at room temperature 5 hours, evaporated under reduced pressure, obtains hydrophobic particles;
(2), preparation dispersant:
Described dispersant is polylactic acid-dichloromethane solution, and compound method is, is joined in dichloromethane 90-110ml by particles of polylactic acid 2-3g, is stirred at room temperature and is completely dissolved uniformly, becomes polylactic acid-dichloromethane solution;
(3), it is mixed and made into waterproofing agent:
The hydrophobic particles 10g obtained in described (1) is added in the dispersant prepared in described (2), stirs, supersound process 25-35min, hydrophobic particles and the polylactic acid composite water-proof agent of finished product can be obtained.
Embodiment 3
The present invention is in being embodied as, and described waterproofing agent is for adding hydrophobic particles modified fluoro-silicone resin waterproofing agent, and preparation method is realized by following steps:
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 1.8-2.2g and trimethyl silane 2-7g adds in ethanol 13-30ml, more progressively drips mass concentration 28% ammonia spirit 7-9ml, is stirred at room temperature 5-8 hour, evaporated under reduced pressure, obtains hydrophobic particles;
(2), preparation dispersant::
The 300ml that added water by fluorine silicon resin emulsion KT-800100ml dilutes, add the new base phenyl ether 0.6-2.0g or hexadecyltrimethylammonium chloride 0.3-1.0g or dodecylbenzene sodium sulfonate 0.3-0.6g of polyoxyethylene, stir 1 hour under 800rpm, obtain the fluorine silicon resin emulsion of the dilution as dispersant;
(3), it is mixed and made into waterproofing agent:
The hydrophobic particles 18-22g obtained in described (1) is joined in the dispersant prepared in described (2), add 0.5-3.0g carbon fluorine emulsifying agent 6301 and 0.1-0.3g is silane coupled and KH550, be stirred at room temperature 3 hours, obtain adding hydrophobic particles modified fluoro-silicone resin waterproofing agent.
In described (2), after being stirred at room temperature 3 hours, it is additionally added filler-calcium carbonate 5-10g(and is typically chosen 5-10g, optimum selection 7g), Pulvis Talci 1-5g(be typically chosen 1-5g, optimum selection 3g), thickening agent acrylate copolymer 1-3g(be typically chosen 1-3g, optimum selection 2g), continue stirring 2 hours.
After continuing stirring 2 hours, also can add epoxies adhesion promoter EL90600.5-1g(and be typically chosen 0.5-1g, optimum selection 0.7g) continue stirring 1 hour.
Embodiment 4
The present invention is in being embodied as, and described waterproofing agent is for adding hydrophobic particles modified fluoro-silicone resin waterproofing agent, and its preparation method is:
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 2g and trimethyl silane 6g adds in ethanol 20ml, more progressively drips mass concentration 28% ammonia spirit 6ml, is stirred at room temperature 5 hours, evaporated under reduced pressure, obtains hydrophobic particles;
(2), preparation dispersant:
The 300ml that added water by fluorine silicon resin emulsion KT-800100ml dilutes, and adds and stirs 1 hour under the new base phenyl ether of 0.3g polyoxyethylene and hexadecyltrimethylammonium chloride 0.7g, 800rpm, obtains the fluorine silicon resin emulsion of the dilution as dispersant;
(3), it is mixed and made into waterproofing agent:
Hydrophobic particles 20g is joined in the fluorine silicon resin emulsion of the dilution as dispersant, add carbon fluorine emulsifying agent 63010.7g and silane coupled and KH5500.2g, be stirred at room temperature 3 hours, obtain adding hydrophobic particles modified fluoro-silicone resin waterproofing agent.
Waterproofing agent prepared by method described in above-described embodiment 1-4 application on fibre board, waterproofing agent is coated on fibre board, 50-70min is dried, it is desirable to drying temperature is 110 DEG C of drying 1 hour, is effectively improved fibre board water proofing property and increases the service life at 100-130 DEG C.
By in technique scheme it can be seen that the present invention adopts hydrophobic particles to add polylactic acid to, as waterproofing agent in fluorine silicon resin emulsion. Between them, synergism reaches hydrophobic effect. Hydrophobic silane nanoparticle is easily adjusted into the node configuration of low-surface-energy so that critical surface tension is substantially low. Polylactic acid not only surface can be low, has hydrophobicity, also has good moulding property and makes the surfacing after being coated with smooth, and film has tensile strength and toughness. Fluoro-containing group in fluorine silicon resin emulsion KT-800 is low-surface-energy molecule, effectively drops low-surface-energy, increases hydrophobicity. The Silane coupling agent KH550 added in prepared by hydrophobic particles Si modification fluorine silicon resin waterproofing agent is adsorbed on nanometer silane particle, and the amino of one end can form hydrogen bond with the hydroxyl on cellulose, increases the cohesive force to fiber.
The present invention, through experiment and test, achieves extraordinary Advantageous Effects, and relevant technique effect is as follows:
After waterproofing agent prepared by the inventive method spreads upon on fibrous plate, the contact angle �� of this fibrous plate be 105 ��-125 �� (technical stipulation �� < 90 ��, then the surface of solids is hydrophilic;�� > 90 ��, then the surface of solids is hydrophobic, and �� is more big, then show that impermeable ability is more good), it is not easy infiltration after water droplet drippage, it was shown that the waterproofing agent prepared by the present invention has significantly high impermeable ability. After tested, impermeable ability improves more than 5 times, and the caking property of fiber is good, at 10 batches of fibre boardes of experiment, all finds no waterproof obscission, and as existing waterproofing agent, in 10 groups of contrast groups, almost all has obscission.
Through orthogonal test, obtain the process conditions of the best: in the preparation of hydrophobic particles, tetraethyl orthosilicate 2g and cetyl trimethyl silane 5g. Hydrophobic particles is with the preparation of polylactic acid composite water-proof agent, and 10 grams of hydrophobic particles are distributed in the dichloromethane solution of the 100ml polylactic acid that mass concentration is 20g/L, sonication treatment time 15min. Add Silane coupling agent KH550 0.4ml, continue mixing time 3 hours. Being coated with on fibre board, contact angle can reach 123 ��.
Adding hydrophobic particles modified fluoro-silicone resin waterproofing agent, dispersant adopts the new base phenyl ether of polyoxyethylene and hexadecyltrimethylammonium chloride compound, respectively 0.3g and 0.7g. Carbon fluorine emulsifying agent 63010.7g and Silane coupling agent KH550 (i.e. aminopropyltriethoxywerene werene) 0.2g. Calcium carbonate 6g Pulvis Talci 3g. Thickening agent acrylate copolymer 2g, epoxies adhesion promoter EL90600.7g. Being coated with on paper, contact angle can reach 125 ��.
The polylactic acid waterproofing agent adding hydrophobic particles is in that to be in that not only good waterproof performance compared with market like product advantage with the advantage adding hydrophobic particles fluorine silicon resin waterproofing agent, and anti-permeability is strong, and environment friendly and pollution-free, and cost is low.
Compared with prior art, there is following significant advantage:
(1) polylactic acid of hydrophobic particles is added in environmental protection, and adds hydrophobic particles fluorine silicon resin waterproofing agent no matter raw material or product is all nontoxic.
(2) cost is low. The polylactic acid of hydrophobic particles, and add hydrophobic particles fluorine silicon resin waterproofing agent 1kg product cost and be only about 200 yuan, lower than the waterproofing agent cost reaching same waterproof effect on the market, reduce by more than 50% than like product cost.
(3) nanometer silane particle adheres to poor on fiber, and can have good dispersibility in polylactic acid and fluorine silicon resin emulsion, and by the compatibilization of silane coupler so that being firmly adhered on fiber, impermeable ability improves more than 5 times.
(4) fiber is had very strong adhesiveness by the waterproof layer formed after coating, extends in time and will not brittle peel off, more than service life prolonged for another ten years.
(5) raising of product quality, adds actual application value and commercial value, obtains success create good business opportunity for commercial, and economic and social benefit is huge.
Claims (9)
1. the waterproofing agent preparation method for fibrous plate, it is characterised in that the preparation method of described waterproofing agent is:
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 1.8-2.2g and trimethyl silane 2-7g adds in ethanol 13-30ml, more progressively drips mass concentration 28% ammonia spirit 6-9ml, is stirred at room temperature 5-8 hour, evaporated under reduced pressure, obtains hydrophobic particles;
(2), it is mixed and made into waterproofing agent:
Described hydrophobic particles 5-20g is added in dispersant 90-110ml, stirs, supersound process 25-35min, it is waterproofing agent.
2. the waterproofing agent preparation method for fibrous plate according to claim 1, it is characterised in that described waterproofing agent is hydrophobic particles and polylactic acid composite water-proof agent, and its preparation method comprises the steps of
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 2g and trimethyl silane 6g adds in ethanol 20ml-25ml, more progressively drips mass concentration 28% ammonia spirit 6ml, is stirred at room temperature 5 hours, evaporated under reduced pressure, obtains hydrophobic particles;
(2), preparation dispersant:
Described dispersant is polylactic acid-dichloromethane solution, and compound method is, is joined in dichloromethane 90-110ml by particles of polylactic acid 2-3g, is stirred at room temperature and is completely dissolved uniformly, becomes polylactic acid-dichloromethane solution;
(3), it is mixed and made into waterproofing agent:
The hydrophobic particles 5-20g obtained in described (1) is added in the dispersant prepared in described (2), stirs, supersound process 25-35min, hydrophobic particles and the polylactic acid composite water-proof agent of finished product can be obtained.
3. the waterproofing agent preparation method for fibrous plate according to claim 1, it is characterised in that described waterproofing agent is for adding hydrophobic particles modified fluoro-silicone resin waterproofing agent, and its preparation method is:
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 1.8-2.2g and trimethyl silane 2-7g adds in ethanol 13-30ml, more progressively drips mass concentration 28% ammonia spirit 5-7ml, is stirred at room temperature 5-8 hour, evaporated under reduced pressure, obtains hydrophobic particles;
(2), preparation dispersant:
The 300ml that added water by fluorine silicon resin emulsion KT-800100ml dilutes, add the new base phenyl ether 0.6-2.0g or hexadecyltrimethylammonium chloride 0.3-1.0g or dodecylbenzene sodium sulfonate 0.3-0.6g of polyoxyethylene, stir 1 hour under 800rpm, obtain the fluorine silicon resin emulsion of the dilution as dispersant;
(3), it is mixed and made into waterproofing agent:
The hydrophobic particles 18-22g obtained in described (1) is joined in the dispersant prepared in described (2), add carbon fluorine emulsifying agent 63010.5-3.0g and silane coupled and KH5500.1-0.3g, it is stirred at room temperature 3 hours, obtains adding hydrophobic particles modified fluoro-silicone resin waterproofing agent.
4. the waterproofing agent preparation method for fibrous plate according to claim 3, it is characterized in that, in described (3), after being stirred at room temperature 3 hours, it is additionally added filler-calcium carbonate 5-10g, Pulvis Talci 1-5g, thickening agent acrylate copolymer 1-3g, continues stirring 2 hours.
5. the waterproofing agent preparation method for fibrous plate according to claim 3, it is characterised in that in described (3), after being stirred at room temperature 3 hours, is additionally added filler-calcium carbonate 7g, Pulvis Talci 3g, thickening agent acrylate copolymer 2g, continues stirring 2 hours.
6. the waterproofing agent preparation method for fibrous plate according to claim 4, it is characterised in that after described continuation is stirred 2 hours, is additionally added epoxies adhesion promoter EL90600.5-1g and continues stirring 1 hour.
7. the waterproofing agent preparation method for fibrous plate according to claim 3, it is characterised in that described waterproofing agent is for adding hydrophobic particles modified fluoro-silicone resin waterproofing agent, and its preparation method is:
(1), hydrophobic particles is prepared:
Tetraethyl orthosilicate 2g and trimethyl silane 6g adds in ethanol 20ml, more progressively drips mass concentration 28% ammonia spirit 6ml, is stirred at room temperature 5 hours, evaporated under reduced pressure, obtains hydrophobic particles;
(2), preparation dispersant:
The 300ml that added water by fluorine silicon resin emulsion KT-800100ml dilutes, and adds and stirs 1 hour under the new base phenyl ether of 0.3g polyoxyethylene and hexadecyltrimethylammonium chloride 0.7g, 800rpm, obtains the fluorine silicon resin emulsion of the dilution as dispersant;
(3), it is mixed and made into waterproofing agent:
Hydrophobic particles 20g is joined in the fluorine silicon resin emulsion of the dilution as dispersant, add carbon fluorine emulsifying agent 63010.7g and silane coupled and KH5500.2g, be stirred at room temperature 3 hours, obtain adding hydrophobic particles modified fluoro-silicone resin waterproofing agent.
8. the arbitrary described waterproofing agent of claim 1-7 is applied in the method on fibre board, it is characterised in that be coated on fibre board by waterproofing agent, dries 50-70min at 100-130 DEG C.
9. waterproofing agent is applied in the method on fibre board according to claim 8, it is characterised in that be coated on fibre board by waterproofing agent, dries 1 hour at 110 DEG C.
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