CN107974137A - A kind of high-strength water-based coating and preparation method thereof - Google Patents
A kind of high-strength water-based coating and preparation method thereof Download PDFInfo
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- CN107974137A CN107974137A CN201711346290.5A CN201711346290A CN107974137A CN 107974137 A CN107974137 A CN 107974137A CN 201711346290 A CN201711346290 A CN 201711346290A CN 107974137 A CN107974137 A CN 107974137A
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- Prior art keywords
- based coating
- water
- added
- defoamer
- strength water
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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
- C09D121/00—Coating compositions based on unspecified rubbers
- C09D121/02—Latex
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of high-strength water-based coating and preparation method thereof, it is related to technical field of aqueous paint, the water paint chemical composition and mass percent are as follows:Epoxy resin:7 12%, biuret:5 7%, isophorone diisocyanate:3 5%, tetrahydrofuran:2 4%, diethylene glycol:1 2%, thickener:1 2%, graphite powder:2 3%, wetting agent:1 3%, dispersant:2 5%, defoamer:2 4%, plasticizer:1 1.5%, surplus is latex.
Description
Technical field
The present invention relates to technical field of aqueous paint, more particularly to a kind of high-strength water-based coating and preparation method thereof.
Background technology
Coating is widely used in family, to coating internal surfaces and outer surface.For inner surface, particularly living area
In film, the high performance of intensity is an important performance, is even more for being often exposed to outer decorative paint and wall coating situation
In this way, if intensity is relatively low, film is easy to, by F. O. D, cause appearance of coat to be damaged, and influences using beautiful and validity period
Limit.
The content of the invention
If the technical problems to be solved by the invention are that the film intensity that coating is formed is relatively low, film can be caused to be easy to
It is destroyed.
In order to solve the above technical problems, the present invention provides a kind of high-strength water-based coating, it is characterised in that:The water-based painting
Expect that chemical composition and mass percent are as follows:Epoxy resin:7-12%, biuret:5-7%, isophorone diisocyanate:3-
5%, tetrahydrofuran:2-4%, diethylene glycol:1-2%, thickener:1-2%, graphite powder:2-3%, wetting agent:1-3%, dispersant:
2-5%, defoamer:2-4%, plasticizer:1-1.5%, surplus are latex.
The technical solution that further limits of the present invention is:
Further, the water paint chemical composition and mass percent are as follows:Epoxy resin:7-12%, biuret:5-7%,
Isophorone diisocyanate:3-5%, tetrahydrofuran:2-4%, diethylene glycol:1-2%, thickener:1-2%, graphite powder:2-
3%, wetting agent:1-3%, dispersant:2-5%, defoamer:2-4%, plasticizer:1-1.5%, surplus are latex.
A kind of preceding high-strength water-based coating, the defoamer is organic silicon defoamer.
A kind of preceding high-strength water-based coating, the dispersant are silicate and polyacrylate, the silicate
Proportioning with polyacrylate is 1:3.
A kind of preceding high-strength water-based coating, the thickener is association thickener.
A kind of preparation method of high-strength water-based coating, comprises the following steps:
A, deionized water is added in dispersion cup, then epoxy resin and latex are added in dispersion cup, just adds side
Stirring, temperature are maintained at 25 degree;
B, biuret and isophorone diisocyanate are added in dispersion cup, is warming up to 35 degree, stirs 30min, adds four
Hydrogen furans, stirs 15min, filtering;
C, the lotion after filtering is added in pre-emulsification container, starts mulser, added diethylene glycol stirring 5min, add
Thickener, graphite powder, wetting agent, dispersant, defoamer and plasticizer, emulsify 35min;
D, whether observation emulsion is layered, and has the cohesion of monomer-free droplet, if layering, is again stirring for, until emulsifying liquid is uniform.
The beneficial effects of the invention are as follows:
(1)Using epoxy resin and latex as film forming matter in the present invention, the biuret and isophorone diisocyanate of addition, this
Both are slower with the reaction of water, it is first combined with epoxy resin, can produce more completely emulsion reaction with epoxy resin, assist
Epoxy resin and latex film forming, and biuret is sheet type crystal, film forming matter can condense together, be not easy to disperse, its
Also there is adsorption effect, membranaceous material can be adsorbed, make to connect even closer, two isocyanide of isophorone between membranaceous material
Acid esters contains hydroxyl, after ensureing to mix with epoxy resin, it is easy to is emulsified not having hydrophilic curing agent component, makes coating
Middle component is sufficiently mixed, and then that stablizes combines, so as to which so that the coating strength formed is higher, hardness is high, is not easy
Division;
(2)The tetrahydrofuran added in the present invention, is a kind of low boiling point, miscible with water, the solvent being easily recycled, viscous to reduce
Degree, increase dispersiveness, while may act as the medium of oiliness base and aqueous base, make biuret and isophorone diisocyanate with
Produce between epoxy resin and more fully react;Diethylene glycol is a kind of coalescents, it can make epoxy resin surface soft
Change, promote polymer particle meaning compressive deformation, fusion film forming, and diethylene glycol is high boiling solvent, it can be formed in film
Slowly vapor away afterwards, reduce the influence to coating strength;
(3)The thickener added in the present invention is association thickener, its image surface activating agent is the same, existing hydrophilic in molecule
Also there is oleophilic moiety in part, and hydrophilic segment, which can be hydrated swelling, makes water mutually thicken, and oleophylic end group can be with emulsion particle, pigment particles
Mutually association forms network structure, and the film of biuret absorption can connect the coating to be formed strong by network structure integration
Spend stronger, be not easy to divide, intensity is further lifted.
Embodiment
A kind of high-strength water-based coating provided in this embodiment, the water paint chemical composition and mass percent are as follows:
Epoxy resin:7-12%, biuret:5-7%, isophorone diisocyanate:3-5%, tetrahydrofuran:2-4%, diethylene glycol:
1-2%, thickener:1-2%, graphite powder:2-3%, wetting agent:1-3%, dispersant:2-5%, defoamer:2-4%, plasticizer:1-
1.5%, surplus is latex.
The present embodiment water paint chemical composition and mass percent are using as follows:Epoxy resin:7-12%, biuret:5-
7%, isophorone diisocyanate:3-5%, tetrahydrofuran:2-4%, diethylene glycol:1-2%, thickener:1-2%, graphite powder:
2-3%, wetting agent:1-3%, dispersant:2-5%, defoamer:2-4%, plasticizer:1-1.5%, surplus are latex.
Defoamer is organic silicon defoamer, and dispersant is silicate and polyacrylate, the silicate and polypropylene
The proportioning of hydrochlorate is 1:3, thickener is association thickener.
A kind of preparation method of high-strength water-based coating, it is characterised in that:Comprise the following steps:
A, deionized water is added in dispersion cup, then epoxy resin and latex are added in dispersion cup, just adds side
Stirring, temperature are maintained at 25 degree;
B, biuret and isophorone diisocyanate are added in dispersion cup, is warming up to 35 degree, stirs 30min, adds four
Hydrogen furans, stirs 15min, filtering;
C, the lotion after filtering is added in pre-emulsification container, starts mulser, added diethylene glycol stirring 5min, add
Thickener, graphite powder, wetting agent, dispersant, defoamer and plasticizer, emulsify 35min;
D, whether observation emulsion is layered, and has the cohesion of monomer-free droplet, if layering, is again stirring for, until emulsifying liquid is uniform.
The water-borne coating and common water borne paint coatings prepared using the present invention carries out contrast test, observation processing effect
Fruit, result of the test measure, water-borne coating smooth in appearance of the invention, and common water borne paint coatings appearance is coarse;Using same
The water-borne coating and common water borne paint coatings that kind steel nail prepares the present invention impact, and finally make prepared by the present invention
There is roughly the same slight crack, water-borne coating prepared by the present invention in water-borne coating and common water borne paint coatings surface
Impact dynamics is 175N, and common water borne paint coatings impact dynamics is 105N;Experiment is understood more than, water-based painting of the invention
Material strength of coating aspect of performance has significant raising.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical solution, all fall within the protection domains of application claims.
Claims (6)
- A kind of 1. high-strength water-based coating, it is characterised in that:The water paint chemical composition and mass percent are as follows:Asphalt mixtures modified by epoxy resin Fat:7-12%, biuret:5-7%, isophorone diisocyanate:3-5%, tetrahydrofuran:2-4%, diethylene glycol:1-2%, increases Thick dose:1-2%, graphite powder:2-3%, wetting agent:1-3%, dispersant:2-5%, defoamer:2-4%, plasticizer:1-1.5%, surplus For latex.
- A kind of 2. high-strength water-based coating according to claim 1, it is characterised in that:The water paint chemical composition and Mass percent is as follows:Epoxy resin:7-12%, biuret:5-7%, isophorone diisocyanate:3-5%, tetrahydrofuran:2- 4%, diethylene glycol:1-2%, thickener:1-2%, graphite powder:2-3%, wetting agent:1-3%, dispersant:2-5%, defoamer:2- 4%, plasticizer:1-1.5%, surplus are latex.
- A kind of 3. high-strength water-based coating according to claim 1, it is characterised in that:The defoamer disappears for organic silicon Infusion.
- A kind of 4. high-strength water-based coating according to claim 1, it is characterised in that:The dispersant is silicate and gathers Acrylates, the proportioning of the silicate and polyacrylate is 1:3.
- A kind of 5. high-strength water-based coating according to claim 1, it is characterised in that:The thickener thickens for association type Agent.
- A kind of 6. preparation method of high-strength water-based coating according to claim 1, it is characterised in that:Including following step Suddenly:A, deionized water is added in dispersion cup, then epoxy resin and latex are added in dispersion cup, just adds side Stirring, temperature are maintained at 25 degree;B, biuret and isophorone diisocyanate are added in dispersion cup, is warming up to 35 degree, stirs 30min, adds four Hydrogen furans, stirs 15min, filtering;C, the lotion after filtering is added in pre-emulsification container, starts mulser, added diethylene glycol stirring 5min, add Thickener, graphite powder, wetting agent, dispersant, defoamer and plasticizer, emulsify 35min;D, whether observation emulsion is layered, and has the cohesion of monomer-free droplet, if layering, is again stirring for, until emulsifying liquid is uniform.
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CN201711346290.5A CN107974137A (en) | 2017-12-15 | 2017-12-15 | A kind of high-strength water-based coating and preparation method thereof |
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CN201711346290.5A CN107974137A (en) | 2017-12-15 | 2017-12-15 | A kind of high-strength water-based coating and preparation method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113337160A (en) * | 2021-04-16 | 2021-09-03 | 新壹涂(浙江)新材料技术有限公司 | High-strength anti-corrosion high-temperature-resistant water-based paint and preparation method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103740234A (en) * | 2014-01-20 | 2014-04-23 | 苏州高通新材料科技有限公司 | Waterborne epoxy paint with high strength and high tenacity and preparation method thereof |
CN104073146A (en) * | 2014-06-17 | 2014-10-01 | 江苏科技大学 | Water-based epoxy polyurethane floor coating and preparation method thereof |
CN105907244A (en) * | 2016-05-25 | 2016-08-31 | 惠州市惠阳区嘉泰涂料有限公司 | Special-type high-strength wear-resistant water-based epoxy paint and preparation method thereof |
-
2017
- 2017-12-15 CN CN201711346290.5A patent/CN107974137A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103740234A (en) * | 2014-01-20 | 2014-04-23 | 苏州高通新材料科技有限公司 | Waterborne epoxy paint with high strength and high tenacity and preparation method thereof |
CN104073146A (en) * | 2014-06-17 | 2014-10-01 | 江苏科技大学 | Water-based epoxy polyurethane floor coating and preparation method thereof |
CN105907244A (en) * | 2016-05-25 | 2016-08-31 | 惠州市惠阳区嘉泰涂料有限公司 | Special-type high-strength wear-resistant water-based epoxy paint and preparation method thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113337160A (en) * | 2021-04-16 | 2021-09-03 | 新壹涂(浙江)新材料技术有限公司 | High-strength anti-corrosion high-temperature-resistant water-based paint and preparation method thereof |
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