CN107573800A - A kind of water-proof emulsion paint and preparation method thereof - Google Patents
A kind of water-proof emulsion paint and preparation method thereof Download PDFInfo
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- CN107573800A CN107573800A CN201710647911.7A CN201710647911A CN107573800A CN 107573800 A CN107573800 A CN 107573800A CN 201710647911 A CN201710647911 A CN 201710647911A CN 107573800 A CN107573800 A CN 107573800A
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Abstract
The invention discloses a kind of water-proof emulsion paint mainly to include 25 40 parts of polysiloxanes poly-fluorine-containing acrylic ester emulsion；25 parts of ptfe emulsion；5 15 parts of SiO2 nano-powders；15 30 parts of talcum powder；Micaceous iron oxide：25 parts；Hydroxyethyl cellulose：13 parts；10 15 parts of coalescents；Defoamer：1.5 3 parts；15 20 parts of water.The preparation method of the water-proof emulsion paint is first to prepare core-shell type polysiloxane poly-fluorine-containing acrylic ester emulsion；Then it is dispersed with stirring uniformly with ptfe emulsion, SiO2 nano-powders, talcum powder, micaceous iron oxide, 50% coalescents, water, defoamer and hydroxyethyl cellulose；Finally, remaining 50% coalescents high-speed stirred is added to be uniformly dispersed.The present invention prepares the emulsion paint film of densification using siloxane polymer, fluorine-containing latex and tetrafluoroethene emulsion, SiO2 nano-powders, significantly improves the water proofing property of emulsion paint.
Description
Technical field
The invention belongs to paint field, and in particular to a kind of water-proof emulsion paint and preparation method thereof.
Background technology
Emulsion paint has the advantages that easy for construction, dried coating film is quick, good permeability compared with other coating, emulsion paint quilt
It is widely applied in interior wall and exterior wall, because exterior wall is vulnerable to the influence of weather, it is necessary to have fabulous anti-for the invasion and attack of rainwater
It is water-based.
Fluoropolymer is added in emulsion paint can effectively improve its water resistance, be primarily due to fluoropolymer
Some atoms on main chain or side chain are connected with fluorine atom, and the bond energy of C-F keys is larger, and the electronegativity of fluorine element is very big, adjacent fluorine
Mutually exclusive between atom, fluorine atom shields carbon atom, so as to protect along the spiral helicine arrangement of jagged carbon atom
Carbon atom, fluoropolymer generally have preferable weatherability, resistance to ag(e)ing, high-low temperature resistant, surface polarity smaller.
Can be with the weatherability of modified milk shellac varnish, resistance to viscosity, chemical-resistant, organosiloxane with organic siloxane polymer
Polymer has the excellent characteristics such as relatively low surface tension, high-low temperature resistant, resistance to oxidation stability, hydrophobicity, resistance tocrocking.So
And the compatibility of the mode modified milk shellac varnish of physical blending is bad, or even separation.
The content of the invention
It is an object of the invention to provide a kind of water-proof emulsion paint and preparation method thereof, the main component of emulsion paint is propylene
Esters of gallic acid polymer, the matrix of emulsion paint is hud typed polysiloxanes-poly-fluorine-containing acrylic ester in the present invention, in emulsion paint
Organic siloxane polymer and fluorinated acrylate polymer are introduced, while adds polytetrafluoroethylene (PTFE), is effectively improved emulsion paint
It is water proofing property, weatherability, corrosion-resistant.
The present invention is achieved through the following technical solutions：A kind of main component of water-proof emulsion paint includes：
Polysiloxanes-poly-fluorine-containing acrylic ester emulsion 25-40 parts；It is hud typed polysiloxanes-poly- as the matrix of emulsion paint
Fluorinated acrylate, polysiloxanes are core, and poly-fluorine-containing acrylic ester is shell polymeric, and in emulsion paint film forming procedure, fluorine atom is rich
Collect in shell parts, can preferable waterproof；
Ptfe emulsion 2-5 parts；A small amount of polytetrafluoroethylene (PTFE) concentrate physical blending emulsion paint can preferably increase breast
The water proofing property of shellac varnish, due to containing fluorine in the matrix of emulsion paint, therefore the compatibility of polytetrafluoroethylene (PTFE) and emulsion paint can be increased；
SiO2Nano-powder 5-15 parts；Add SiO2Nano-powder can strengthen the anti-wear performance of emulsion paint, increase emulsion paint film
Compactness, so as to strengthen water proofing property；
Talcum powder 15-30 parts；
Micaceous iron oxide：2-5 parts；The chemical stability of micaceous iron oxide is preferable, and stronger to sunlight reflection, can slow down latex
The aging of paint film, it is preferable rust resisting pigment, adhesive force is strong, nontoxic；
Hydroxyethyl cellulose：1-3 parts；Hydroxyethyl cellulose belongs to nonionic soluble fibre element ethers, have preferably thickening,
Scattered, emulsification effect；
Coalescents 10-15 parts；
Defoamer：1.5-3 part；
Water 15-20 parts.
In order to preferably realize the present invention, further, the coalescents are propyl alcohol butyl ether, propylene glycol monomethyl ether acetic acid
Any one in ester, butyl glycol ether, butyl glycol ether, propane diols phenylate.
In order to preferably realize the present invention, further, the particle diameter of the talcum powder is 7-15um, the micaceous iron oxide
Particle diameter be 15-20um.The film of the thinner emulsion paint of particle diameter of filler is finer and close, so as to which water proofing property is better.
A kind of preparation method of water-proof emulsion paint, is mainly included the following steps that：
Step A, core-shell type polysiloxane-poly-fluorine-containing acrylic ester emulsion is prepared using core-shell emulsion polymerization method；
Step B, take core-shell type polysiloxane-poly-fluorine-containing acrylic ester emulsion and ptfe emulsion, SiO2Nano-powder, cunning
Stone flour, micaceous iron oxide, 50% coalescents, water, defoamer and hydroxyethyl cellulose are dispersed with stirring uniformly, rotating speed 800-
1000r/min；
Step C, above-mentioned mixed solution is added into remaining 50% coalescents high-speed stirred and is uniformly dispersed, rotating speed 1200-
2000r/min。
In order to preferably realize the present invention, further, the step A is mainly included the following steps that：
Step A1, first prepares seed emulsion, and siloxanes, acrylate monomer are mixed, seed emulsion is prepared at 70-85 DEG C；
Mix monomer is added dropwise in the flask of reaction, emulsion blueness is generation seed emulsion, after monomer dropping is complete, continues to react
0.5 hour or so, this method was conventional method therefore repeated no more；
Step A2, fluorinated acrylate monomer and initiator are separately added into step A1 seed emulsion and reacted, is added dropwise to complete
1-2h is reacted at 80-90 DEG C afterwards, Ph, filtering, discharging are adjusted after cooling.
The design of core-shell type polysiloxane-poly-fluorine-containing acrylic ester emulsion follows FOX formula, designs the vitrifying temperature of emulsion
Degree is needed to determine according to emulsion paint application.
In order to preferably realize the present invention, further, content of siloxane is total monomer quality in the step A1
1.5%-3%, the siloxanes are any one in KH550, KH570, VTES.
In order to preferably realize the present invention, further, the content of fluorinated acrylate is total monomer in the step A2
The 10%-25% of quality, the fluorinated acrylate are hexafluorobutyl acrylate, acrylic acid trifluoro ethyl ester, methacrylic acid octafluoro
Any one in pentyl ester, the fluorine last of the ten Heavenly stems ester of methacrylic acid 17.
The invention has the advantages that：
（1）The present invention adds hud typed polysiloxanes-poly-fluorine-containing acrylic ester emulsion, and organosiloxane is introduced in emulsion paint
Polymer and fluorinated acrylate polymer, effectively improve the water proofing property of emulsion paint；
（2）The present invention, which adds ptfe emulsion, can effectively improve the water proofing property of emulsion paint, while polysiloxanes-poly- fluorine-containing
The presence of acrylate causes compatibility to improve；
（3）The present invention adds SiO2Nano-powder strengthens the compactness of emulsion paint film, improves the water resistance of latex film.
Brief description of the drawings
Nothing.
Embodiment
Embodiment 1：
In four-neck flask it is anti-not Jia Ru pH, partial emulsifier, deionized water, be passed through nitrogen, stir, slowly
75 DEG C are warming up to, KH570, butyl acrylate and methyl methacrylate are well mixed, is added dropwise by constant pressure funnel mixed
Close monomer and part initiator, reacted in four-neck flask, emulsion blueness is generation seed emulsion, monomer dropping it is complete it
Afterwards, reaction 0.5 hour or so is continued at 75 DEG C；Continue that hexafluorobutyl acrylate, methyl methacrylate, butyl acrylate is added dropwise
Mix monomer and initiator are reacted, and are warming up to after being added dropwise to complete at 85 DEG C and are reacted 1-2h, and Ph, filtering, institute are adjusted after cooling
The preparation method for stating Structure of Core/shell Emulsion is conventional method, therefore is repeated no more；Wherein KH570 content is total monomer quality
2.5%, the content of hexafluorobutyl acrylate is the 10% of total monomer quality.Take 25 parts of the Structure of Core/shell Emulsion of preparation, polytetrafluoroethylene (PTFE)
2 parts of concentrate, 10 parts of SiO2Nano-powder, 800 25 parts of mesh talcum powder, 2 parts of micaceous iron oxide, 1 part of hydroxyethyl cellulose, film forming
5 parts of auxiliary agent, 2 parts of defoamer, 15 parts of water are dispersed with stirring uniformly, rotating speed 1000r/min, stir 45min；Then film forming is added to help
5 parts of high-speed stirreds of agent are uniformly dispersed, rotating speed 2000r/min, and the emulsion paint of waterproof is prepared.
Its water resistance and contact angle are tested after emulsion paint is film-made, the emulsion paint of preparation is coated uniformly on to the sample of cleaning
On plate, drying and forming-film under room temperature condition, 96h in water is immersed in by the 2/3 of emulsion paint film test piece, it is parallel to make 3 samples.By latex
After paint film, contact angle of the latex film to water is determined using JC2000C Static Contacts angle measuring instrument.
Drawn by experiment, emulsion paint water resistance is preferable, does not occur bubble, dry linting, obvious change during survey water resistance
The defects of film coating phenomenon such as color.The contact angle of emulsion paint film is 91.8 °, and the surface for illustrating emulsion paint film is hydrophobicity, is on the one hand
Because adding fluorine-containing emulsion and ptfe emulsion in emulsion paint, fluorine atom is enriched in emulsion paint in film forming procedure
The appearance of film, the polarity of siloxane polymer are small；On the other hand it is because adding SiO2Nano-powder emulsion paint film compactness compared with
It is good, so as to strengthen the water proofing property of emulsion paint.
Embodiment 2：
In four-neck flask it is anti-not Jia Ru pH, partial emulsifier, deionized water, be passed through nitrogen, stir, slowly
75 DEG C are warming up to, KH570, butyl acrylate and methyl methacrylate are well mixed, is added dropwise by constant pressure funnel mixed
Close monomer and part initiator, reacted in four-neck flask, emulsion blueness is generation seed emulsion, monomer dropping it is complete it
Afterwards, reaction 0.5 hour or so is continued at 75 DEG C；Continue that methacrylic acid octafluoro pentyl ester, methyl methacrylate, acrylic acid is added dropwise
Butyl ester mix monomer and initiator are reacted, and are warming up to after being added dropwise to complete at 85 DEG C and are reacted 1-2h, and Ph, mistake are adjusted after cooling
Filter, the preparation method of the Structure of Core/shell Emulsion is conventional method, therefore is repeated no more；Wherein KH570 content is total monomer quality
2.5%, the content of methacrylic acid octafluoro pentyl ester is the 10% of total monomer quality.Take 25 parts of the Structure of Core/shell Emulsion of preparation, poly- four
3 parts of PVF concentrate, 10 parts of SiO2Nano-powder, 800 25 parts of mesh talcum powder, 2 parts of micaceous iron oxide, hydroxyethyl cellulose 1
Part, 5 parts of coalescents, 2 parts of defoamer, 15 parts of water are dispersed with stirring uniformly, rotating speed 1000r/min, stir 45min；Then plus
Enter 5 parts of high-speed stirreds of coalescents to be uniformly dispersed, rotating speed 2000r/min, the emulsion paint of waterproof is prepared.
Its water resistance and contact angle are tested after emulsion paint is film-made, method of testing is the same as embodiment 1.
Drawn by experiment, emulsion paint water resistance is preferable, does not occur bubble, dry linting, obvious change during survey water resistance
The defects of film coating phenomenon such as color.The contact angle of emulsion paint film is 95.3 °, and the surface for illustrating emulsion paint film is hydrophobicity, compared to implementation
Example 1, the contact angle of emulsion paint film become big, hydrophobicity increase, are primarily due to fluorine in fluorochemical monomer methacrylic acid octafluoro pentyl ester
Content increase, the content increase of ptfe emulsion so that the water proofing property of emulsion paint is preferable.One side emulsion paint is in film forming mistake
Fluorine atom is enriched in the appearance of emulsion paint film in journey, while the polarity of siloxane polymer is small；Added in another aspect emulsion paint
SiO2Nano-powder, emulsion paint film compactness is preferable, so as to strengthen the water proofing property of emulsion paint.
It is described above, be only presently preferred embodiments of the present invention, any formal limitation not done to the present invention, it is every according to
Any simply modification, the equivalent variations made according to the technical spirit of the present invention to above example, each fall within the protection of the present invention
Within the scope of.
Claims (7)
1. a kind of water-proof emulsion paint, it is characterised in that mainly including following component：
Polysiloxanes-poly-fluorine-containing acrylic ester emulsion 25-40 parts；
Ptfe emulsion 2-5 parts；
SiO2Nano-powder 5-15 parts；
Talcum powder 15-30 parts；
Micaceous iron oxide：2-5 parts；
Hydroxyethyl cellulose：1-3 parts；
Coalescents 10-15 parts；
Defoamer：1.5-3 part；
Water 15-20 parts.
2. a kind of water-proof emulsion paint according to claim 1, it is characterised in that the coalescents are propyl alcohol butyl ether, third
Any one in glycol methyl ether acetate, butyl glycol ether, butyl glycol ether, propane diols phenylate.
A kind of 3. water-proof emulsion paint according to claim 1, it is characterised in that the particle diameter of the talcum powder is 7-15um,
The particle diameter of the micaceous iron oxide is 15-20um.
4. the preparation method of a kind of water-proof emulsion paint according to claim 1, it is characterised in that mainly including following step
Suddenly：
Step A, core-shell type polysiloxane-poly-fluorine-containing acrylic ester emulsion is prepared using core-shell emulsion polymerization method；
Step B, take core-shell type polysiloxane-poly-fluorine-containing acrylic ester emulsion and ptfe emulsion, SiO2Nano-powder, cunning
Stone flour, micaceous iron oxide, 50% coalescents, water, defoamer and hydroxyethyl cellulose are dispersed with stirring uniformly, rotating speed 800-
1000r/min；
Step C, above-mentioned mixed solution is added into remaining 50% coalescents high-speed stirred and is uniformly dispersed, rotating speed 1200-
2000r/min。
5. the preparation method of a kind of water-proof emulsion paint according to claim 4, it is characterised in that the step A is mainly wrapped
Include following steps：
Step A1, first prepares seed emulsion, and siloxanes, acrylate monomer are mixed, seed emulsion is prepared at 70-85 DEG C；
Step A2, fluorinated acrylate monomer and initiator are separately added into step A1 seed emulsion and reacted, is added dropwise to complete
1-2h is reacted at 80-90 DEG C afterwards, Ph, filtering, discharging are adjusted after cooling.
A kind of 6. preparation method of water-proof emulsion paint according to claim 5, it is characterised in that silica in the step A1
Alkane content is the 1.5%-3% of total monomer quality, and the siloxanes is appointing in KH550, KH570, VTES
Meaning is a kind of.
7. the preparation method of a kind of water-proof emulsion paint according to claim 5, it is characterised in that fluorine-containing in the step A2
The content of acrylate is the 10%-25% of total monomer quality, and the fluorinated acrylate is hexafluorobutyl acrylate, acrylic acid three
Any one in fluorine ethyl ester, methacrylic acid octafluoro pentyl ester, the fluorine last of the ten Heavenly stems ester of methacrylic acid 17.
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| CN201710647911.7A CN107573800A (en) | 2017-08-01 | 2017-08-01 | A kind of water-proof emulsion paint and preparation method thereof |
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| CN201710647911.7A CN107573800A (en) | 2017-08-01 | 2017-08-01 | A kind of water-proof emulsion paint and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108912912A (en) * | 2018-06-15 | 2018-11-30 | 安徽艾米伦特建材科技有限公司 | Acrylate waterproof paint and preparation method thereof |
| CN110093072A (en) * | 2018-01-28 | 2019-08-06 | 姚建珍 | A kind of formula and preparation method thereof of Teflon waterproof coating paint |
| CN110499082A (en) * | 2019-08-29 | 2019-11-26 | 雅士利涂料（苏州）有限公司 | Interior wall coating material made of a kind of application organic siliconresin and preparation method thereof |
| CN112961553A (en) * | 2021-02-05 | 2021-06-15 | 新京喜(唐山)建材有限公司 | Single-component acrylate waterproof coating and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093072A (en) * | 2018-01-28 | 2019-08-06 | 姚建珍 | A kind of formula and preparation method thereof of Teflon waterproof coating paint |
| CN108912912A (en) * | 2018-06-15 | 2018-11-30 | 安徽艾米伦特建材科技有限公司 | Acrylate waterproof paint and preparation method thereof |
| CN110499082A (en) * | 2019-08-29 | 2019-11-26 | 雅士利涂料（苏州）有限公司 | Interior wall coating material made of a kind of application organic siliconresin and preparation method thereof |
| CN110499082B (en) * | 2019-08-29 | 2021-08-17 | 雅士利涂料（苏州）有限公司 | Interior wall coating material prepared from organic silicon resin and preparation method thereof |
| CN112961553A (en) * | 2021-02-05 | 2021-06-15 | 新京喜(唐山)建材有限公司 | Single-component acrylate waterproof coating and preparation method thereof |
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