CN110437698A - A kind of Environmental Protective Water-paint and preparation method thereof - Google Patents
A kind of Environmental Protective Water-paint and preparation method thereof Download PDFInfo
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- CN110437698A CN110437698A CN201910756440.2A CN201910756440A CN110437698A CN 110437698 A CN110437698 A CN 110437698A CN 201910756440 A CN201910756440 A CN 201910756440A CN 110437698 A CN110437698 A CN 110437698A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- 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
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- 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
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- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- 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
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- 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
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Abstract
The present invention relates to a kind of Environmental Protective Water-paints and preparation method thereof, belong to paint field.Using organosilicon-modified acrylic latex as main component, cooperation inorganic filler and other auxiliary agents are prepared Environmental Protective Water-paint of the present invention.Using the carbon nanotube of alkylation modification and nano silica as inorganic filler, carbon nanotube and nano silica are used in combination, the collaboration enhancing of Points And lines can be formed, coating uniform bright and clean film carbon nanotube and nano silica by alkylation modification can be formed when very thin it is possible to prevente effectively from filler reunion, effectively increase dispersibility of the inorganic filler in coating resin.Alkylation modification filler has the function of defoaming agent simultaneously, so Environmental Protective Water-paint of the present invention need not add other defoaming agents.Environmental Protective Water-paint prepared by the present invention has excellent mechanical property, adhesive force, hydrophily and water resistance.Preparation method simple possible, stability are good, reproducible, it is easy to accomplish industrialized production.
Description
Technical field
The present invention relates to a kind of preparation methods of coating, and in particular to a kind of Environmental Protective Water-paint and preparation method thereof belongs to
In paint field.
Background technique
Coating is a kind of widely used high molecular material for being used to be coated in various substrate surfaces.One important function of coating
It can be protective effect, organic coating is coated in metal surface, can completely cut off its contact with oxygen with water, and then metal is protected to exempt from
By various damages and erosion.Coating also has significant role, different eye-catching sign boards and road on highway in terms of Warning Mark
Separator bar, the pipeline and equipment of various different colours, are all that different functions is indicated by the color difference of coating in factory
And effect.Paint development is so far, many kinds of, and classification is carried out usually from solvent and has been segmented into coatings volatile organic compounds and solvent-free painting
Material, the former is segmented into solvent-home and water-iome paint again.In solvent based coating contain a large amount of VOC, paint solidification at
When film, solvent, which is evaporate into air, both to have been polluted environment, has influenced human health, with country's environmental protection higher and higher to chemical industry
It is required that people gradually recognize that the organic solvent in coating can cause irreversible injury to the Nature.Therefore exploitation uses water
Property coating, more meet social sustainable development and human health growth requirement.
Water-borne acrylic coatings, aqueous epoxide resin paint, water are segmented into according to the difference of film forming matter in water paint
Property polyurethane coating and Water-borne Alkyd Coatings etc..Acrylic resin is because of its good guarantor's light colour retention, weatherability, anti-corrosive properties
And film forming, it produces and easy for construction simple, no pollution to the environment is coating so applying in water paint relatively mostly
One of with the hot spot of adhesive industry research.But above-mentioned coating is still poor for the dicoration of substrate, and adhesive force cannot
Reach very high requirement, limits its application further.Therefore, it is necessary to invent a kind of aqueous, environmental protective painting of good performance
Material and preparation method thereof.
Summary of the invention
The present invention to solve the deficiencies in the prior art, provides a kind of Environmental Protective Water-paint, with excellent mechanics
Performance, adhesive force, hydrophily and water resistance.Environmental Protective Water-paint of the invention is made by the raw material of following parts by weight:
50 ~ 70 parts of organosilicon-modified acrylic latex；
20 ~ 35 parts of alkylation modification filler；
10 ~ 20 parts of levelling agent；
20 ~ 30 parts of water.
Wherein the organosilicon-modified acrylic latex be methyl acrylate, acryloyl morpholine, hydroxy-ethyl acrylate and
Vinyltrimethoxysilane quadripolymer latex, molecular weight 4000 ~ 10000.
Wherein the organosilicon-modified acrylic latex is made by following step:
Lauryl sodium sulfate is sequentially added into reaction kettle, allyl octyl phenol polyoxyethylene ether is sufficiently molten with deionized water
Solution, being slowly added to monomer mixed solution while stirring, (monomer mixed solution includes methyl acrylate, acryloyl morpholine, acrylic acid hydroxyl second
Ester and vinyltrimethoxysilane), pre-emulsion is sufficiently stirred to obtain.Take the ammonium sulfate solution of 3 ~ 5wt% of total weight parts 1 ~ 2%
It is slowly added into above-mentioned pre-emulsion, control speed is finished in charging in 1 ~ 1.5h.System temperature is then risen to 80 ~ 85 DEG C,
Organosilicon-modified acrylic latex is obtained after 4 ~ 5.5h of reaction.
Preferably, the lauryl sodium sulfate, allyl octyl phenol polyoxyethylene ether, deionized water quality ratio are 1:
1~1.2:3~6。
Preferably, the methyl acrylate, acryloyl morpholine, hydroxy-ethyl acrylate and vinyltrimethoxysilane rub
You are than being 2:1:1:1.
Preferably, the lauryl sodium sulfate: the molar ratio of methyl acrylate is 1:0.3 ~ 0.5.
Wherein the alkylation modification filler is alkyl carbon nano tube and the mixture for being alkylated nano silica.
Wherein the alkylation modification filler is made by following step:
Carbon nanotube and nano silica are uniformly mixed according to weight ratio 1:1, be placed in vacuum oven vacuum outgas 1 ~
2h removes free moisture, filler after degassing is then transferred to the reaction kettle full of inert gas by interior transfer method, and be added 40
The ethanol solution of ~ 50wt% vinyltrimethoxysilane reacts 2 ~ 4h at 110 ~ 120 DEG C, stops filtering, drying after reaction, obtains
The alkylation modification filler formed to the mixture by alkyl carbon nano tube and alkylation silica.After alkylation modification
Filler all has good dispersibility in acid-organosilicon crylic acid latex and water dispersion medium.
Preferably, the carbon nanotube be multi-walled carbon nanotube, 5 ~ 10nm of internal diameter, 10 ~ 20 nanometers of outer diameter, length 10 ~
25nm。
Preferably, the mass ratio of the nano silica and vinyltrimethoxysilane is 1:2.6 ~ 3.2.
Preferably, the levelling agent is selected from one kind of polyvinyl butyral, dimethyl silicone polymer and diacetone alcohol
Or it is a variety of.
A kind of preparation method of above-mentioned Environmental Protective Water-paint the following steps are included:
(1) 50 ~ 70 parts of organosilicon-modified acrylic latex, 10 ~ 20 parts of levelling agents and 20 ~ 30 parts of water are weighed and are mixed in blender
In, 45 ~ 50 DEG C of Yu Wendu, under conditions of revolving speed is 500 ~ 600r/min, stop after being stirred 1 ~ 1.5h.
(2) it will be added in said mixture after 20 ~ 35 parts of alkylation modification filler ultrasonic disperses, at room temperature 500 ~
The revolving speed of 600r/min stops after being stirred 30 ~ 40min.
(3) with grinding, mixing through cone mill after the mixture ph to neutrality in ammonium hydroxide regulating step (2), this hair is obtained
Bright Environmental Protective Water-paint.
(4) the triethylene tetramine curing agent of 0.5 ~ 1.5wt% of total weight is added when using, implements coating after mixing.
Beneficial effect explanation:
1, using organosilicon-modified acrylic latex as main component, cooperation inorganic filler helps Environmental Protective Water-paint of the present invention with other
Agent is prepared, and acrylate copolymer has preferable hydrophily, but water resistance is poor, by the modification of organosilicon, increases
Its water resistance is added.
2, Environmental Protective Water-paint of the present invention is received using the carbon nanotube of alkylation modification and nano silica as inorganic filler
The carbon nanotube of rice threadiness can form interlaced plies in coating again, obvious to coating activeness and quietness effect.It carbon nanotube and receives
Rice silica is used in combination, and can form the collaboration enhancing of Points And lines, can be formed when coating is very thin uniformly bright and clean
Film.In addition, carbon nanotube and nano silica by alkylation modification it is possible to prevente effectively from filler reunion, effectively mention
High dispersibility of the inorganic filler in coating resin.
3, added alkylation modification filler simultaneously have the function of defoaming agent, so Environmental Protective Water-paint of the present invention without
Other defoaming agents must be added.
4, Environmental Protective Water-paint prepared by the present invention has excellent mechanical property, adhesive force, hydrophily and water resistance.Its
Preparation method simple possible, stability are good, reproducible, it is easy to accomplish industrialized production.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described, and specific embodiment does not limit the present invention.
Embodiment 1
The present invention provides a kind of Environmental Protective Water-paints, are made by the raw material of following parts by weight:
50 parts of organosilicon-modified acrylic latex；
20 parts of alkylation modification filler；
5 parts of polyvinyl butyral；
5 parts of dimethyl silicone polymer；
20 parts of water.
The preparation method of above-mentioned Environmental Protective Water-paint the following steps are included:
(1) it prepares organosilicon-modified acrylic latex: sequentially adding 12.5kg lauryl sodium sulfate, 12.5kg into reaction kettle
Allyl octyl phenol polyoxyethylene ether, is sufficiently dissolved with 37.5kg deionized water, and it is (single to be slowly added to monomer mixed solution while stirring
Body mixed liquor includes 0.83kg methyl acrylate, 0.68kg acryloyl morpholine, 0.56kg hydroxy-ethyl acrylate and 0.72kg ethylene
Base trimethoxy silane), pre-emulsion is sufficiently stirred to obtain.The ammonium sulfate solution of 0.65kg3 ~ 5wt% is taken to be slowly added into above-mentioned pre-
In lotion, control speed is finished in charging in 1h.System temperature is then risen to 80 DEG C, is obtained after reaction 5.5h organic-silicon-modified
Acrylic latex.
(2) alkylation modification filler is prepared:
1.2kg carbon nanotube and 1.2kg nano silica are uniformly mixed, vacuum oven vacuum outgas 1h is placed in, is removed
Then filler after degassing is transferred to the reaction kettle full of inert gas by interior transfer method, and 3.9kg is added by free moisture
The ethanol solution of the vinyltrimethoxysilane of 40wt% reacts 2h at 110 DEG C, stops filtering, drying after reaction, obtain by
The alkylation modification filler of the mixture composition of alkyl carbon nano tube and alkylation silica.Filler after alkylation modification
Good dispersibility is all had in acid-organosilicon crylic acid latex and water dispersion medium.The carbon nanotube is multi-wall carbon nano-tube
Pipe, 5 ~ 10nm of internal diameter, 10 ~ 20 nanometers of outer diameter, 10 ~ 25nm of length.
(3) 50 parts of organosilicon-modified acrylic latex, 5 parts of polyvinyl butyrals, 5 parts of dimethyl silicone polymers and 20
Part water is mixed in blender, in temperature 45 C, under conditions of revolving speed is 500r/min, is stopped after being stirred 1h.
(4) it will be added in said mixture after 20 parts of alkylation modification filler ultrasonic disperses, at room temperature 550r/min
Revolving speed stops after being stirred 30min.
(5) with grinding, mixing through cone mill after the mixture ph to neutrality in ammonium hydroxide regulating step (4), this hair is obtained
Bright Environmental Protective Water-paint.
(6) the triethylene tetramine curing agent of total weight 0.5wt% is added when using, implements coating after mixing.
Embodiment 2
The present invention provides a kind of Environmental Protective Water-paints, are made by the raw material of following parts by weight:
60 parts of organosilicon-modified acrylic latex；
28 parts of alkylation modification filler；
5 parts of polyvinyl butyral；
5 parts of dimethyl silicone polymer；
5 parts of diacetone alcohol；
25 parts of water.
The preparation method of above-mentioned Environmental Protective Water-paint the following steps are included:
(1) it prepares organosilicon-modified acrylic latex: sequentially adding 12.5kg lauryl sodium sulfate, 13.2kg into reaction kettle
Allyl octyl phenol polyoxyethylene ether, is sufficiently dissolved with 49kg deionized water, is slowly added to monomer mixed solution (monomer while stirring
Mixed liquor includes 1.11kg methyl acrylate, 0.91kg acryloyl morpholine, 0.75kg hydroxy-ethyl acrylate and 0.96kg vinyl
Trimethoxy silane), pre-emulsion is sufficiently stirred to obtain.The ammonium sulfate solution of 1.18kg3 ~ 5wt% is taken to be slowly added into above-mentioned pre- cream
In liquid, control speed is finished in charging in 1h.System temperature is then risen to 85 DEG C, obtains organic-silicon-modified propylene after reacting 4h
Sour latex.
(2) alkylation modification filler is prepared:
1.2kg carbon nanotube and 1.2kg nano silica are uniformly mixed, vacuum oven vacuum outgas 1.5h is placed in, removes
Free moisture is removed, filler after degassing is then transferred to by the reaction kettle full of inert gas by interior transfer method, and 4.0kg is added
The ethanol solution of the vinyltrimethoxysilane of 45wt% reacts 3h at 115 DEG C, stops filtering, drying after reaction, obtain by
The alkylation modification filler of the mixture composition of alkyl carbon nano tube and alkylation silica.Filler after alkylation modification
Good dispersibility is all had in acid-organosilicon crylic acid latex and water dispersion medium.The carbon nanotube is multi-wall carbon nano-tube
Pipe, 5 ~ 10nm of internal diameter, 10 ~ 20 nanometers of outer diameter, 10 ~ 25nm of length.
(3) 60 parts of organosilicon-modified acrylic latex, 5 parts of polyvinyl butyrals, 5 parts of dimethyl silicone polymers, 5 are weighed
Part diacetone alcohol and 25 parts of water are mixed in blender, in temperature 50 C, under conditions of revolving speed is 600r/min, are stirred
Stop after 1.5h.
(4) it will be added in said mixture after 28 parts of alkylation modification filler ultrasonic disperses, at room temperature 600r/min
Revolving speed stops after being stirred 35min.
(5) with grinding, mixing through cone mill after the mixture ph to neutrality in ammonium hydroxide regulating step (4), this hair is obtained
Bright Environmental Protective Water-paint.
(6) the triethylene tetramine curing agent of total weight 1.0wt% is added when using, implements coating after mixing.
Embodiment 3
The present invention provides a kind of Environmental Protective Water-paints, are made by the raw material of following parts by weight:
70 parts of organosilicon-modified acrylic latex；
35 parts of alkylation modification filler；
9 parts of polyvinyl butyral；
11 parts of diacetone alcohol；
30 parts of water.
The preparation method of above-mentioned Environmental Protective Water-paint the following steps are included:
(1) it prepares organosilicon-modified acrylic latex: sequentially adding 12.5kg lauryl sodium sulfate, 15kg alkene into reaction kettle
Propyl octyl phenol polyethenoxy ether, is sufficiently dissolved with 75kg deionized water, and being slowly added to monomer mixed solution while stirring, (monomer is mixed
Closing liquid includes 1.39kg methyl acrylate, 1.14kg acryloyl morpholine, 0.94kg hydroxy-ethyl acrylate and 1.20kg vinyl
Trimethoxy silane), pre-emulsion is sufficiently stirred to obtain.The ammonium sulfate solution of 2.14kg3 ~ 5wt% is taken to be slowly added into above-mentioned pre- cream
In liquid, control speed is finished in charging in 1.5h.System temperature is then risen to 82 DEG C, obtains organic-silicon-modified third after reacting 5h
Olefin(e) acid latex.
(2) 1.2kg carbon nanotube and 1.2kg nano silica are uniformly mixed, are placed in vacuum oven vacuum outgas
2h removes free moisture, filler after degassing is then transferred to the reaction kettle full of inert gas by interior transfer method, and be added
The ethanol solution of the vinyltrimethoxysilane of 3.84kg 50wt% reacts 4h at 120 DEG C, stops filtering, drying after reaction,
Obtain the alkylation modification filler being made of the mixture of alkyl carbon nano tube and alkylation silica.After alkylation modification
Filler good dispersibility is all had in acid-organosilicon crylic acid latex and water dispersion medium.The carbon nanotube is multi wall
Carbon nanotube, 5 ~ 10nm of internal diameter, 10 ~ 20 nanometers of outer diameter, 10 ~ 25nm of length.
(1) 70 parts of organosilicon-modified acrylic latex, 9 parts of polyvinyl butyrals, 11 parts of diacetone alcohol and 30 parts are weighed
Water is mixed in blender, in temperature 50 C, under conditions of revolving speed is 600r/min, is stopped after being stirred 1.5h.
(2) it will be added in said mixture after 35 parts of alkylation modification filler ultrasonic disperses, at room temperature 600r/min
Revolving speed stops after being stirred 40min.
(3) with grinding, mixing through cone mill after the mixture ph to neutrality in ammonium hydroxide regulating step (2), this hair is obtained
Bright Environmental Protective Water-paint.
(4) the triethylene tetramine curing agent of total weight 1.5wt% is added when using, implements coating after mixing.
Comparative example 1
Only change organosilicon-modified acrylic latex into commercially available acrylic resin, the other the same as in Example 1.
Comparative example 2
Alkyl carbon nano tube is only changed to the alkylation nano silica of equal quality into, other are the same as embodiment 1.
Comparative example 3
Alkylation nano silica is only changed to the alkyl carbon nano tube of equal quality into, other are the same as embodiment 1.
As a result it compares:
Tensile property is tested using ASTM D638 and ASTM D790 testing standard with universal testing machine, and pencil hardness uses
GB/T 6739-2006 test, impact resistant strength are tested using GB/T 1732-1993.
Organosilicon-modified acrylic latex has excellent toughness, water resistance, when being changed into commercially available acrylic resin, firmly
Degree, elongation at break, tensile strength, impact strength, adhesive force decrease, and comparative example 1 is shown in water resistance decline.Alkylation
When carbon nanotube and alkylation nano silica are also used as inorganic filler, relatively good mechanical property is shown, it is single
Solely in use, having an impact to impact strength, adhesive force, tensile strength and elongation at break, comparative example 2 and comparative example 3 are seen.
To sum up, Environmental Protective Water-paint of the present invention is not only environmentally protective, does not use organic solvent, but also has excellent mechanics
Performance and water resistance.
Claims (10)
1. a kind of Environmental Protective Water-paint, which is characterized in that be made by the raw material of following parts by weight:
50 ~ 70 parts of organosilicon-modified acrylic latex；
20 ~ 35 parts of alkylation modification filler；
10 ~ 20 parts of levelling agent；
20 ~ 30 parts of water.
2. a kind of Environmental Protective Water-paint as described in claim 1, it is characterised in that: the wherein organosilicon-modified acrylic
Latex is methyl acrylate, acryloyl morpholine, hydroxy-ethyl acrylate and vinyltrimethoxysilane quadripolymer latex, is divided
Son amount 4000 ~ 10000.
3. a kind of Environmental Protective Water-paint as claimed in claim 2, it is characterised in that the organosilicon-modified acrylic latex
Be made from following step: sequentially adding lauryl sodium sulfate into reaction kettle, allyl octyl phenol polyoxyethylene ether, spend from
Sub- water sufficiently dissolves, and is slowly added to methyl acrylate, acryloyl morpholine, hydroxy-ethyl acrylate and vinyl trimethoxy while stirring
Pre-emulsion is sufficiently stirred to obtain in base silane monomer mixed solution；The ammonium sulfate solution of 3 ~ 5wt% of total weight parts 1 ~ 2% is taken slowly to add
Enter into above-mentioned pre-emulsion, control speed is finished in charging in 1 ~ 1.5h；System temperature is then risen to 80 ~ 85 DEG C, reaction 4 ~
The organosilicon-modified acrylic latex is obtained after 5.5h.
4. a kind of Environmental Protective Water-paint as claimed in claim 3, it is characterised in that: the lauryl sodium sulfate, allyl
Base octyl phenol polyoxyethylene ether, deionized water quality ratio are 1:1 ~ 1.2:3 ~ 6.
5. a kind of Environmental Protective Water-paint as claimed in claim 3, it is characterised in that: the methyl acrylate, acryloyl
Quinoline, hydroxy-ethyl acrylate and vinyltrimethoxysilane molar ratio are 2:1:1:1.
6. a kind of Environmental Protective Water-paint as claimed in claim 3, it is characterised in that: the lauryl sodium sulfate: propylene
The molar ratio of sour methyl esters is 1:0.3 ~ 0.5.
7. a kind of Environmental Protective Water-paint as described in claim 1, it is characterised in that: wherein the alkylation modification filler is
Alkyl carbon nano tube and alkylation nano silica mixture.
8. a kind of Environmental Protective Water-paint as claimed in claim 7, it is characterised in that the alkylation modification filler is by following
Step is made: being uniformly mixed carbon nanotube and nano silica according to weight ratio 1:1, it is de- to be placed in vacuum oven vacuum
1 ~ 2h of gas removes free moisture, filler after degassing is then transferred to the reaction kettle full of inert gas by interior transfer method, and add
Enter the ethanol solution of 40 ~ 50wt% vinyltrimethoxysilane, react 2 ~ 4h at 110 ~ 120 DEG C, stops filtering, baking after reaction
It is dry, obtain the alkylation modification filler being made of the mixture of alkyl carbon nano tube and alkylation silica.
9. a kind of Environmental Protective Water-paint as claimed in claim 8, it is characterised in that: the carbon nanotube is multi-wall carbon nano-tube
Pipe, 5 ~ 10nm of internal diameter, 10 ~ 20 nanometers of outer diameter, 10 ~ 25nm of length；The nano silica and vinyl trimethoxy silicon
The mass ratio of alkane is 1:2.6 ~ 3.2；The levelling agent is selected from polyvinyl butyral, dimethyl silicone polymer and diacetone alcohol
It is one or more.
10. a kind of method for preparing Environmental Protective Water-paint as described in claim 1, which comprises the following steps:
1) 50 ~ 70 parts of organosilicon-modified acrylic latex, 10 ~ 20 parts of levelling agents and 20 ~ 30 parts of water are weighed and are mixed in blender
In, 45 ~ 50 DEG C of Yu Wendu, under conditions of revolving speed is 500 ~ 600r/min, stop after being stirred 1 ~ 1.5h；
2) it will be added in said mixture after 20 ~ 35 parts of alkylation modification filler ultrasonic disperses, at room temperature 500 ~ 600r/min
Revolving speed be stirred 30 ~ 40min after stop；
3) use ammonium hydroxide regulating step 2) in mixture ph to neutrality after through cone mill grinding, mixing, obtain aqueous, environmental protective painting
Material；The triethylene tetramine curing agent of 0.5 ~ 1.5wt% of total weight is added when use, implements coating after mixing.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111286249A (en) * | 2019-12-12 | 2020-06-16 | 陕西速源节能科技有限公司 | Environment-friendly coating and preparation method thereof |
| CN112940604A (en) * | 2021-03-18 | 2021-06-11 | 北京冬曦既驾科技咨询有限公司 | Conductive coating and preparation method thereof |
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