A kind of high rigidity double-component waterborne polyurethane floor coatings and preparation method thereof
Technical field
The present invention relates to building material technical field, refer in particular to a kind of high rigidity double-component waterborne polyurethane floor coatings and preparation method thereof.
Background technology
Along with the high speed development of economy Yu building industry, promoting floor coatings to enter prosperity and development periods, people are more and more higher to the requirement of floor coatings simultaneously.In prior art, epoxy resin as being applied to the resinous material of terrace the earliest, be technology the most ripe be also the maximum kind of proportion.
Resinae floor coatings major advantage is that hardness is high, resistance to acids and bases is good.But, have a disadvantage in that: because epoxy resin is rigid material so that its wearability, lower temperature resistance, resistance to surface scratch resistant are poor;Weatherability is poor, the most aging, and service life is short.Polyurethane floor coatings, compared with epoxies floor coatings, has preferable wearability and weatherability, but hardness is not enough.
Summary of the invention
It is an object of the invention to provide excellent high rigidity double-component waterborne polyurethane floor coatings of the physical and chemical performances such as a kind of high hardness of paint film, wearability and preparation method thereof.
For reaching above-mentioned purpose, the solution of the present invention is:
A kind of high rigidity double-component waterborne polyurethane floor coatings, is made up of than 10:1 mix homogeneously by mass parts first and second liang of components, and first component is the aqueous aliphatic isocyanates of solids content 100%;Second component is divided by quality by following component and is constituted: deionized water 7%-15%, modified high-molecular dispersant 0.5%-1.5%, multifunctional assistant 0.4%-0.9%, non-ionic wetting agent 0.1%-0.3%, pigment 1%-25%, filler 5%-30%, hydroxyl acrylic aqueous dispersion 40%-55%, inorganic additive 3%-7%, high-strength ceramic microsphere 2%-8%, polyethers defoamer 0.3%-0.5%, BIT class preservative 0.2%-0.3%, polyurethanes thickening agent 0.5%-2.5%.
Further, hydroxyl acrylic aqueous dispersion be Beyer Co., Ltd produce the trade mark be XP2542 product, for hydroxyl acrylic aqueous dispersion, solid content is 50 mass %, and hydroxyl value content is 2.7-3.0 mass %.
Further, inorganic additive be the trade mark that Van Baerle company produces be INOCOT 330 product, the inorganic additive based on potassium silicate, solid content is 29.5 mass %.
Further, modified high-molecular dispersant be Kyoeisha Chemical Co., Ltd. produce the trade mark be FLOWLEN G-700AMP product, for the 2-amino-2-methyl-1-propanol salt of a kind of hydroxyl polymer-containing modifier, solids content is 40-50 mass %.
Further, non-ionic wetting agent be the trade mark of Clariant Corporation be LCN 070 product, for a kind of alkyl polyoxyethylene ether, working substance content is 100%, and HLB value is 13.
Further, high-strength ceramic microsphere be the trade mark of 3M company be W-410 product, for a kind of high intensity, inertia, hard, fine spherical particle, comprcssive strength is more than 413.41MPa.
Further, filler is ultra-fine synthesis blanc fixe and/or ultrafine mica powder.
Further, one or more during pigment is white carbon black, Rutile type titanium dioxide, iron oxide red, iron oxide yellow, phthalein viridescent, phthalocyanine blue.
Further, BIT class preservative be Troy company produce the trade mark be K10N product, be a kind of BIT class preservative without formaldehyde and solvent.
A kind of high rigidity double-component waterborne polyurethane floor coatings preparation method, comprises the following steps:
One, it is divided into by quality: deionized water 7%-15%, modified high-molecular dispersant 0.5%-1.5%, multifunctional assistant 0.4%-0.9%, non-ionic wetting agent 0.1%-0.3%, pigment 1%-25%, filler 5%-30%, hydroxyl acrylic aqueous dispersion 40%-55%, inorganic additive 3%-7%, high-strength ceramic microsphere 2%-8%, polyethers defoamer 0.3%-0.5%, BIT class preservative 0.2%-0.3%, polyurethanes thickening agent 0.5%-2.5%, is equipped with second component;
Two, in whipping process, it is sequentially added into deionized water, modified high-molecular dispersant, multifunctional assistant and non-ionic wetting agent, and stirs;
Three, in the material that step 2 prepares, stirring adds pigment and filler, after stir 10 minutes with 1500 revs/min, then improve rotating speed to 3000 revs/min of high speed dispersion 40 minutes, prepare semi-finished product;
Four, the semi-finished product that step 3 prepares are moved in another reaction unit, it is sequentially added into hydroxyl acrylic aqueous dispersion, inorganic additive, high-strength ceramic microsphere, polyethers defoamer and BIT class preservative under 400 revs/min of stirrings, stir 10 minutes to after without obvious bubble, add polyurethane thickener, be further continued for stirring 15 minutes;
Five, the material filter-cloth filtering of 120 mesh that step 4 is prepared, obtain the second component of high rigidity double-component waterborne polyurethane floor coatings;
Six, prepare double-component waterborne polyurethane floor coatings with first component aqueous aliphatic isocyanates after second component being mixed homogeneously than 10:1 proportioning by mass parts.
After using such scheme, mainly comprising in coating second component of the present invention is made up of hydroxyl acrylic aqueous dispersion resin, inorganic additive and functional stuffing three, each of which has the particular advantage that the main part that one hydroxyl acrylic aqueous dispersion is film forming matter, its hydroxyl is based on being admittedly up to 3.3 mass % containing content, with the reactive group generation polycondensation reaction in first component aliphatic isocyanates polymer, cross-link film forming.There is higher crosslink density after reaction, form the space net structure that chemistry chain is crisscross so that the physical and chemical performance such as hardness of film, abrasion resistance significantly improves.Wherein do not contain any volatile organic matter and be cross-linked into membrane process without adding the high boiling solvents such as coalescents, it is possible to meeting the requirement of environmental protection;Silicate component brushing in its two inorganic additive can be penetrated into basic unit inside in basic unit and crosslink reaction with the free calcium in cement matrix, generate insoluble amorphous state hydrated calcium silicate, thus the adhesive force hardness of paint film and basic unit and paint film between can be greatly improved.The porous coating that simultaneously can form porous steam because of it rather than the coating of densification, make the exchange circulation of paint film inner air and outer air be possibly realized, reduce because humidity causes the possibility of film defect;Its three functional stuffing is the white high-strength ceramic microsphere of mean diameter 15um, its comprcssive strength is minimum can reach 413.41MPa, can effectively promote hardness of paint film, wearability and corrosion resistance, simultaneously unlike other erose fillers, high-strength ceramic microsphere is the most spherical, can roll, therefore reduce viscosity and the inherent strain of product as the steel ball in bearing, institute is so that the final product stream property moved is more outstanding, and is not easy warpage and contraction.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment one
A kind of high rigidity double-component waterborne polyurethane floor coatings, is made up of first and second liang of components, and wherein, first component is the aqueous aliphatic isocyanates of solids content 100%;Second component is made up of following components, and the mass parts of each component is: deionized water 11.1%;Modified high-molecular dispersant 1%, the product produced for Kyoeisha Chemical Co., Ltd., its trade mark is FLOWLEN
G-700AMP, it is the 2-amino-2-methyl-1-propanol salt of a kind of hydroxyl polymer-containing modifier, and its solids content is 40-50 mass %;Multifunction amine analog assistant 0.5%, the product produced for LG-DOW company, its trade mark is AMP-95;Non-ionic wetting agent 0.3%, the product produced for Clariant Corporation, its trade mark is LCN 070, and it is a kind of alkyl polyoxyethylene ether, and its working substance content is 100%, and HLB value is 13;Titanium dioxide 10%, the product produced for du pont company, its trade mark is R902, and it is a kind of rutile titanium dioxide;Ultra-fine synthesis blanc fixe 20%, for the product of Qingdao east wind Chemical Manufacture, 1250 mesh;Hydroxyl acrylic aqueous dispersion 45%, the trade mark produced for Beyer Co., Ltd is XP 2542 product, and solid content is 50 mass %, and hydroxyl value content is 2.7-3.0 mass %;Potassium silicate class inorganic additive 5.5%, the product produced for Van Baerle company, its trade mark is INOCOT 330, and solid content is 29.5 mass %;High-strength ceramic microsphere 4.5%, the product produced for 3M company, its trade mark is W-410, and it is a kind of high intensity, inertia, hard, fine spherical particle, and comprcssive strength is more than 413.41MPa;Polyethers defoamer 0.3%, the product produced for Ya Shilan company, its trade mark is AM1512;BIT class preservative 0.3%, the product produced for Troy company of the U.S., the trade mark is K10N;Polyurethanes auxiliary rheological agents 1.5%, the product produced for the Dow Chemical Company, the trade mark is 2020.
A kind of high rigidity double-component waterborne polyurethane floor coatings preparation method, comprises the following steps:
One, it is divided into by quality: deionized water 11.1%, modified high-molecular dispersant 1%, multifunctional assistant 0.5%, non-ionic wetting agent 0.3%, pigment 10%, filler 20%, hydroxyl acrylic aqueous dispersion 45%, inorganic additive 5.5%, high-strength ceramic microsphere 4.5%, polyethers defoamer 0.3%, BIT class preservative 0.3%, polyurethanes thickening agent 1.5%, is equipped with second component;
Two, in whipping process, it is sequentially added into deionized water, modified high-molecular dispersant, multifunctional assistant and non-ionic wetting agent, and stirs;
Three, in the material that step 2 prepares, stirring adds pigment and filler, after stir 10 minutes with 1500 revs/min, then improve rotating speed to 3000 revs/min of high speed dispersion 40 minutes, prepare semi-finished product;
Four, the semi-finished product that step 3 prepares are moved in another reaction unit, it is sequentially added into hydroxyl acrylic aqueous dispersion, inorganic additive, high-strength ceramic microsphere, polyethers defoamer and BIT class preservative under 400 revs/min of stirrings, stir 10 minutes to after without obvious bubble, add polyurethane thickener, be further continued for stirring 15 minutes;
Five, the material filter-cloth filtering of 120 mesh that step 4 is prepared, obtain the second component of high rigidity double-component waterborne polyurethane floor coatings;
Six, double-component waterborne polyurethane floor coatings is prepared with first component aqueous aliphatic isocyanates after second component being mixed homogeneously than 10:1 proportioning by mass parts, wherein first component is the aqueous aliphatic isocyanates of 100 mass %, and Wan Hua chemical company produces, and the trade mark is 270.
Embodiment two
A kind of high rigidity double-component waterborne polyurethane floor coatings, is made up of first and second liang of components, and wherein, first component is the aqueous aliphatic isocyanates of solids content 100%;Second component is made up of following components, and the mass parts of each component is: deionized water 11.1%;Modified high-molecular dispersant 1%, the product produced for Kyoeisha Chemical Co., Ltd., its trade mark is FLOWLEN
G-700AMP, it is the 2-amino-2-methyl-1-propanol salt of a kind of hydroxyl polymer-containing modifier, and its solids content is 40-50 mass %;Multifunction amine analog assistant 0.5%, the product produced for LG-DOW company, its trade mark is AMP-95;Non-ionic wetting agent 0.3%, the product produced for Clariant Corporation, its trade mark is LCN 070, and it is a kind of alkyl polyoxyethylene ether, and its working substance content is 100%, and HLB value is 13;Titanium dioxide 10%, the product produced for du pont company, its trade mark is R902, and it is a kind of rutile titanium dioxide;Ultra-fine synthesis blanc fixe 25%, for the product of Qingdao east wind Chemical Manufacture, 1250 mesh;Hydroxyl acrylic aqueous dispersion 43.5%, the trade mark produced for Beyer Co., Ltd is XP
2542 products, solid content is 50 mass %, and hydroxyl value content is 2.7-3.0 mass %;Potassium silicate class inorganic additive 3.5%, the product produced for Van Baerle company, its trade mark is INOCOT 330, and solid content is 29.5 mass %;High-strength ceramic microsphere 3.5%, the product produced for 3M company, its trade mark is W-410, and it is a kind of high intensity, inertia, hard, fine spherical particle, and comprcssive strength is more than 413.41MPa;Polyethers defoamer 0.3%, the product produced for Ya Shilan company, its trade mark is AM1512;BIT class preservative 0.3%, the product produced for Troy company of the U.S., the trade mark is K10N;Polyurethanes auxiliary rheological agents 1%, the product produced for the Dow Chemical Company, the trade mark is 2020.
A kind of high rigidity double-component waterborne polyurethane floor coatings preparation method, comprises the following steps:
One, it is divided into by quality: deionized water 11.1%, modified high-molecular dispersant 1%, multifunctional assistant 0.5%, non-ionic wetting agent 0.3%, pigment 10%, filler 25%, hydroxyl acrylic aqueous dispersion 43.5%, inorganic additive 3.5%, high-strength ceramic microsphere 3.5%, polyethers defoamer 0.3%, BIT class preservative 0.3%, polyurethanes thickening agent 1%, is equipped with second component;
Two, in whipping process, it is sequentially added into deionized water, modified high-molecular dispersant, multifunctional assistant and non-ionic wetting agent, and stirs;
Three, in the material that step 2 prepares, stirring adds pigment and filler, after stir 10 minutes with 1500 revs/min, then improve rotating speed to 3000 revs/min of high speed dispersion 40 minutes, prepare semi-finished product;
Four, the semi-finished product that step 3 prepares are moved in another reaction unit, it is sequentially added into hydroxyl acrylic aqueous dispersion, inorganic additive, high-strength ceramic microsphere, polyethers defoamer and BIT class preservative under 400 revs/min of stirrings, stir 10 minutes to after without obvious bubble, add polyurethane thickener, be further continued for stirring 15 minutes;
Five, the material filter-cloth filtering of 120 mesh that step 4 is prepared, obtain the second component of high rigidity double-component waterborne polyurethane floor coatings;
Six, double-component waterborne polyurethane floor coatings is prepared with first component aqueous aliphatic isocyanates after second component being mixed homogeneously than 10:1 proportioning by mass parts, wherein first component is the aqueous aliphatic isocyanates of 100 mass %, and Wan Hua chemical company produces, and the trade mark is 270.
Comparative example
Relatively conventional double-component waterborne polyurethane floor coatings, for the ease of comparing, in addition to not using potassium silicate class inorganic additive and high-strength ceramic microsphere, remaining component is the most identical with the second component of embodiment two, and the particular make-up of comparative example coating is as follows:
A kind of common double component waterborne polyurethane floor coatings, is made up of first and second liang of components, and wherein, first component is the aqueous aliphatic isocyanates of solids content 100%;Second component is made up of following components, and the mass parts of each component is: deionized water 16.1%;Modified high-molecular dispersant 1%, the product produced for Kyoeisha Chemical Co., Ltd., its trade mark is FLOWLEN
G-700AMP, it is the 2-amino-2-methyl-1-propanol salt of a kind of hydroxyl polymer-containing modifier, and its solids content is 40-50 mass %;Multifunction amine analog assistant 0.5%, the product produced for LG-DOW company, its trade mark is AMP-95;Non-ionic wetting agent 0.3%, the product produced for Clariant Corporation, its trade mark is LCN 070, and it is a kind of alkyl polyoxyethylene ether, and its working substance content is 100%, and HLB value is 13;Titanium dioxide 10%, the product produced for du pont company, its trade mark is R902, and it is a kind of rutile titanium dioxide;Ultra-fine synthesis blanc fixe 25%, for the product of Qingdao east wind Chemical Manufacture, 1250 mesh;Hydroxyl acrylic aqueous dispersion 45%, the trade mark produced for Beyer Co., Ltd is XP 2542 product, and solid content is 50 mass %, and hydroxyl value content is 2.7-3.0 mass %;Polyethers defoamer 0.3%, the product produced for Ya Shilan company, its trade mark is AM1512;BIT class preservative 0.3%, the product produced for Troy company of the U.S., the trade mark is K10N;Polyurethanes auxiliary rheological agents 1.5%, the product produced for the Dow Chemical Company, the trade mark is 2020.
A kind of common double component waterborne polyurethane floor coatings preparation method, comprises the following steps:
One, it is divided into by quality: deionized water 16.1%, modified high-molecular dispersant 1%, multifunctional assistant 0.5%, non-ionic wetting agent 0.3%, pigment 10%, filler 25%, hydroxyl acrylic aqueous dispersion 45%, polyethers defoamer 0.3%, BIT class preservative 0.3%, polyurethanes thickening agent 1.5%, is equipped with second component;
Two, in whipping process, it is sequentially added into deionized water, modified high-molecular dispersant, multifunctional assistant and non-ionic wetting agent, and stirs;
Three, in the material that step 2 prepares, stirring adds pigment and filler, after stir 10 minutes with 1500 revs/min, then improve rotating speed to 3000 revs/min of high speed dispersion 40 minutes, prepare semi-finished product;
Four, the semi-finished product that step 3 prepares are moved in another reaction unit, under 400 revs/min of stirrings, are sequentially added into hydroxyl acrylic aqueous dispersion, polyethers defoamer and BIT class preservative, stir 10 minutes extremely without obvious bubble after, add polyurethane thickener, be further continued for stirring 15 minutes;
Five, the material filter-cloth filtering of 120 mesh that step 4 is prepared, obtain the second component of common double component waterborne polyurethane floor coatings;
Six, double-component waterborne polyurethane floor coatings is prepared with first component aqueous aliphatic isocyanates after second component being mixed homogeneously than 10:1 proportioning by mass parts, wherein first component is the aqueous aliphatic isocyanates of 100 mass %, and Wan Hua chemical company produces, and the trade mark is 270.
Hereinafter carrying out detecting performance by corresponding national standard for above-described embodiment, test result see table:
As seen from the above table, the performance such as hardness and wear resistance of high rigidity double-component waterborne polyurethane floor coatings embodiment one and embodiment two is substantially better than comparative example coating.
The foregoing is only the preferred embodiments of the present invention, not the restriction to this case design, all equivalent variations done according to the design key of this case, each fall within the protection domain of this case.