CN107987711A - Environment-friendly type aqueous double-component polyurethane coating - Google Patents

Environment-friendly type aqueous double-component polyurethane coating Download PDF

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Publication number
CN107987711A
CN107987711A CN201711276467.9A CN201711276467A CN107987711A CN 107987711 A CN107987711 A CN 107987711A CN 201711276467 A CN201711276467 A CN 201711276467A CN 107987711 A CN107987711 A CN 107987711A
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CN
China
Prior art keywords
component
environment
parts
friendly type
polyurethane coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711276467.9A
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Chinese (zh)
Inventor
邵亚
陈伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Platinum Glue Industry Co Ltd
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Suzhou Platinum Glue Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN201711276467.9A priority Critical patent/CN107987711A/en
Publication of CN107987711A publication Critical patent/CN107987711A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/08Polyurethanes from polyethers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The present invention relates to a kind of environment-friendly type aqueous double-component polyurethane coating, is made of two component of first, second, and first component is the polyisocyanates of 100 mass % of solids content;Second component is made of following components, and the parts by weight of each component are:15 25 parts of water;25 parts of dispersant;5 15 parts of pigment;15 30 parts of filler;4 third 30 50 parts of fluorine latex;5 10 parts of polyether triol;58 parts of fluorocarbon resin;0.6 1 parts of defoamer;0.1 0.3 parts of fungicide;0.2 0.5 parts of wetting agent;0.5 1 parts of thickener.In use, first component presses the ratio between mass parts 1 with second component:6~10 mixing.Each component of the second component of coating of the present invention is mutually matched, and can produce good synergistic effect, and the film being ultimately formed has preferable hardness, wearability, pliability, impact and chemical-resistant;After first component and second component are mixing cured, the excellent in weather of film.

Description

Environment-friendly type aqueous double-component polyurethane coating
Technical field
The present invention relates to chemical technology field, more particularly to a kind of environment-friendly type aqueous double-component polyurethane coating.
Background technology
Country's floor coatings more than 80% are solvent-borne type at present, including polyurethane floor coatings and epoxy flooring coating.This A little solvent-borne type floor coatings all contain more organic solvent, not only environment and health are caused to seriously endanger, but also right Petroleum resources are also greatly to waste.Also contain a certain amount of free isocyanate monomer in solvent borne polyurethane floor coatings, In the construction process, the health and living environment of people can be seriously affected.In addition, solvent-borne type floor coatings can be subject to environment Base material is done in the influence and restriction of temperature and humidity, substrate humidity and other problems existing for basal plane, particularly its construction Dry degree requirement is very high, but is difficult often to meet in practice of construction.Therefore, many disadvantages for being difficult to overcome occur in construction Disease, such as:Blistering, bubbling, come off, adhere to phenomena such as bad, have impact on the protecting effect of floor coatings.Although also there is no-solvent type Epoxy flooring coating, but because wherein containing a certain amount of reactive diluent, such as common butyl glycidyl ethers, it has Certain toxicity, is unfavorable to human health.As the increasingly stringent of environmental regulation requirement, people are universal to environmental protection and health Concern and pay attention to and petroleum product price it is unprecedented soaring, the Water-borne modification of floor coatings becomes inevitable development trend.It is existing Technology there are the problem of be weatherability difference and apply the shortcomings of film quality is crisp easy to crack can not still to overcome, thus cannot meet have to weatherability The requirement of the special terrace of outdoor sports of high requirement;Film without chemical crosslinking, good weatherability can not be provided, and And when preparing coating, still need to add a certain amount of cosolvent, which increases the volatile organic content in coating, to environment Have an impact with human body.
The content of the invention
For technical problem existing in the prior art, this case provides a kind of environment-friendly type aqueous double-component polyurethane coating.
To achieve the above object, this case is achieved through the following technical solutions:
A kind of environment-friendly type aqueous double-component polyurethane coating, is made of two component of first, second, wherein, the first component is solid The polyisocyanates of 100 mass % of body content;The second component is made of following components, and the parts by weight of each component are:
In use, first component presses the ratio between mass parts 1 with second component:6~10 mixing.
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the number of the polyether triol is divided equally Son amount Mn is 2000g/mol~3000g/mol.
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the polyisocyanates is MDI.
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the dispersant has following structures Formula:
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the wetting agent for polyoxyethylene- Polyoxypropylene polyoxyethylene.
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the filler is rutile-type dioxy Change titanium.
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the defoamer is polyethyleneglycol Butyl ether.
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the fungicide is by following mass parts Component composition:
Polyacrylamide 60-90wt%;
Zinc pyrithione 10-40wt%.
Preferably, the environment-friendly type aqueous double-component polyurethane coating, wherein, the thickener is myristic acid.
The beneficial effects of the invention are as follows:
(1) wearability of polyurethane coating can be improved by adding 4 third fluorine latex in second component, while increases filler With the adhesion of polyurethane;Fluorocarbon resin improves its chemicals-resistant using firm C-F keys as skeleton, by adding fluorocarbon resin Property, low temperature flexibility and weatherability;Rutile titanium dioxide has very high oxidability, its energy gap is 3.2eV, Equivalent to the energy for the ultraviolet that wavelength is 387nm, under illumination especially ultraviolet light, one hole pair of electronics can be produced, One hole pair of free electron can make oxygen activation, be also easy to produce active oxygen radical, and active oxygen has extremely strong oxidability, decomposable asymmetric choice net Many organic matters, and have poisoning effect to bacterium, the mildew resistance acid and alkali-resistance of coating is improved by adding rutile titanium dioxide Property and illumination are ageing-resistant;Improve the viscosity of coating by adding polyethylene glycol monobutyl ether, prevent shrinkage cavity after coating drying;Polypropylene Acid amides and zinc pyrithione synergistic effect, stablize coating products performance, can effective antibacterial;By adding myristic acid, adjust Gel-coating film spraying, prevents filler from precipitating, and improves the good mechanical stability of coating, controls the rheological characteristic of work progress, make sizing When not sagging, non-drip, not fly liquid;Dispersant is added since it is with silicon oxygen bond, is easy in film-forming and terrace Silanol condensation crosslinking in cement matrix, improves adhesive force of the film on base material, and have good dispersion performance.
(2) each component of the second component of coating of the present invention is mutually matched, and therefore, can produce good synergistic effect, The film being ultimately formed has physical mechanical property and the chemicals-resistants such as preferable hardness, wearability, pliability, impact Property.
(3) the first component that the present invention uses need not use hydrotropy dilution agent to divide well in the second component of the present invention Dissipate and uniformly mixed, reduce further the VOC content of coating of the present invention, meet environmental requirement.With second component it is mixing cured after, The excellent in weather of film, overcomes aqueous epoxy floor coating because weatherability difference causes to apply the shortcomings that being subject to limitation, especially Suitable for the terrace that application is outdoor and has weatherability to require.
Embodiment
With reference to embodiment, the present invention is described in further detail, to make those skilled in the art with reference to specification Word can be implemented according to this.
The wearability of polyurethane coating can be improved by adding 4 third fluorine latex, while increases the glutinous of filler and polyurethane Attached property;Fluorocarbon resin improves its chemical-resistant, low temperature flexibility using firm C-F keys as skeleton, by adding fluorocarbon resin And weatherability;Improve the surface tension and permeability of coating by adding polyoxyethylene-poly-oxypropylene polyoxyethylene, can It is enough preferably to soak ground, so as to improve the adhesive force of coating;Rutile titanium dioxide has very high oxidability, its Energy gap is 3.2eV, equivalent to the energy for the ultraviolet that wavelength is 387nm, under illumination especially ultraviolet light, can be produced Raw one hole pair of electronics, one hole pair of free electron can make oxygen activation, be also easy to produce active oxygen radical, and active oxygen has extremely strong Oxidability, many organic matters of decomposable asymmetric choice net, and have poisoning effect to bacterium, improve coating by adding rutile titanium dioxide Mildew resistance resistance to acid and alkali and illumination it is ageing-resistant;Improve the viscosity of coating by adding polyethylene glycol monobutyl ether, prevent coating from doing Shrinkage cavity after dry;Polyacrylamide and zinc pyrithione synergistic effect, stablize coating products performance, can effective antibacterial;By adding Enter myristic acid, adjusting coating rheological characteristic, prevents filler from precipitating, and improves the good mechanical stability of coating, controls work progress Rheological characteristic, when making sizing not sagging, non-drip, do not fly liquid;Dispersant is added since it is with silicon oxygen bond, in film-forming The silanol condensation crosslinking being easy in the cement matrix with terrace, improves adhesive force of the film on base material, and with good Dispersion performance.
A kind of environment-friendly type aqueous double-component polyurethane coating, is made of two component of first, second, wherein, the first component is solid The polyisocyanates of 100 mass % of body content;The second component is made of following components, and the parts by weight of each component are:
In use, first component presses the ratio between mass parts 1 with second component:6~10 mixing.
Wherein, the number-average molecular weight Mn of the polyether triol is 2000g/mol~3000g/mol.Wherein, the polyisocyanate Cyanate is MDI.
Wherein, the dispersant has following structural formula:
Wherein, the wetting agent is polyoxyethylene-poly-oxypropylene polyoxyethylene.
Wherein, the filler is rutile titanium dioxide.
Wherein, the defoamer is polyethylene glycol monobutyl ether.
Wherein, the fungicide is made of the component of following mass parts:
Polyacrylamide 60-90wt%;
Zinc pyrithione 10-40wt%.
Wherein, the thickener is myristic acid.
Following table lists some specific embodiments:
Following table is the test result of embodiment and comparative example:
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art Realize other modification, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited In specific details.

Claims (9)

1. a kind of environment-friendly type aqueous double-component polyurethane coating, is made of two component of first, second, it is characterised in that the first component For the polyisocyanates of 100 mass % of solids content;The second component is made of following components, and the parts by weight of each component are:
In use, first component presses the ratio between mass parts 1 with second component:6~10 mixing.
2. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that the polyether triol Number-average molecular weight Mn is 2000g/mol~3000g/mol.
3. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that the polyisocyanates is MDI。
4. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that under the dispersant has State structural formula:
5. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that the wetting agent is polyoxy Ethene-polyoxypropylene polyoxyethylene.
6. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that the filler is rutile Type titanium dioxide.
7. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that the defoamer is poly- second Glycol monobutyl ether.
8. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that the fungicide is by as follows The component composition of mass parts:
Polyacrylamide 60-90wt%;
Zinc pyrithione 10-40wt%.
9. environment-friendly type aqueous double-component polyurethane coating as claimed in claim 1, it is characterised in that the thickener is Pork and beans Cool acid.
CN201711276467.9A 2017-12-06 2017-12-06 Environment-friendly type aqueous double-component polyurethane coating Pending CN107987711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711276467.9A CN107987711A (en) 2017-12-06 2017-12-06 Environment-friendly type aqueous double-component polyurethane coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711276467.9A CN107987711A (en) 2017-12-06 2017-12-06 Environment-friendly type aqueous double-component polyurethane coating

Publications (1)

Publication Number Publication Date
CN107987711A true CN107987711A (en) 2018-05-04

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Country Status (1)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102634273A (en) * 2012-05-11 2012-08-15 中国海洋石油总公司 Environment-friendly water-based double-component polyurethane floor coating
CN104559617A (en) * 2015-01-23 2015-04-29 长兴化学工业(中国)有限公司 Coated water-based double-component fluorocarbon paint, and preparation and application thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102634273A (en) * 2012-05-11 2012-08-15 中国海洋石油总公司 Environment-friendly water-based double-component polyurethane floor coating
CN104559617A (en) * 2015-01-23 2015-04-29 长兴化学工业(中国)有限公司 Coated water-based double-component fluorocarbon paint, and preparation and application thereof

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Application publication date: 20180504

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