CN105778742A - Low temperature curing type acrylic polyurethane coating and manufacturing method thereof - Google Patents
Low temperature curing type acrylic polyurethane coating and manufacturing method thereof Download PDFInfo
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- CN105778742A CN105778742A CN201410799487.4A CN201410799487A CN105778742A CN 105778742 A CN105778742 A CN 105778742A CN 201410799487 A CN201410799487 A CN 201410799487A CN 105778742 A CN105778742 A CN 105778742A
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Abstract
The present invention discloses a low temperature curing type acrylic polyurethane coating and a manufacturing method thereof, and belongs to the technical field of anti-corrosion coatings. The acrylic polyurethane coating comprises the following ingredients in the specified proportions: an A component comprising siloxane -modified hydroxy acrylic resin, aliphatic polyaspartic acid ester polyurea, xylene, butyl acetate, toluene, barite powder, feldspar, zircon coated modified titanium dioxide, phthalocyanine blue, organosilicone -modified polyurethane, BYK-325 polyether modified polymethylalkylsiloxane, fluoro modified polyacrylate, di (2,2, 6,6-tetramethyl-1-octyloxy-4-piperidinyl) sebate butyl acetate, a xylene solution, Zinc Isoocatanoate and polyamide wax; and a B component comprising hexamethyl diisocyanate trimer and toluene. The acrylic polyurethane coating has good low-temperature curing properties, in -15 DEG C low temperature environment, coating hard drying time is only 24h, and the low temperature curing type acrylic polyurethane coating is applicable anticorrosion engineering of vessels, storage tanks, refinery plants, bridges, docks and the like in the -15 DEG C low temperature environment, and can meet construction needs in winter.
Description
Technical field
The present invention relates to a kind of low temperature curing type acroleic acid polyurethane coating and manufacture method, belong to anticorrosive coating technical field.
Background technology
Acroleic acid polyurethane coating needs ornamental heavy anticorrosive field to be used widely with the weatherability of its excellence, dicoration, physical and mechanical properties, resistant to chemical media corrosivity, relatively low price at boats and ships, storage tank, refinery, bridge, harbour etc..Acroleic acid polyurethane coating is to be reacted by isocyanates and acrylic resin to form solid-state polymer film forming matter.But, when ambient temperature is lower than 0 DEG C, acrylic resin and isocyanates are difficult to chemical reaction, cause that coating is difficult to solidify.And in the northern area of China, winter environment temperature lower than-15 DEG C for up to 2～3 months.
In the process realizing the present invention, the inventors discovered that and prior art at least there is problems in that, existing acroleic acid polyurethane coating can not-15 DEG C of solidifications, it is impossible to meet and be actually needed.
Summary of the invention
The technical problem to be solved is in that, it is provided that a kind of low temperature curing type acroleic acid polyurethane coating and manufacture method.Specifically, including techniques below scheme:
A first aspect of the present invention provides a kind of low temperature curing type acroleic acid polyurethane coating, and this acroleic acid polyurethane coating includes the component of following part by weight:
Component A:
1 part of silicone-modified Hydroxylated acrylic resin,
0.4～0.8 part of F524 type aliphatic Polyaspartic Polyurea,
0.2～0.5 part of dimethylbenzene, 0.1～0.3 part of butyl acetate, 0.1～0.2 part of toluene,
0.2～0.5 part of blanc fixe, 0.2～0.6 part of Anhydrite, 0.1～0.8 part of membrane wrapping modified titanium dioxide of zirconium,
0.2～0.6 part of phthalocyanine blue, 0.05～0.15 part of organic silicon modified polyurethane,
0.002～0.06 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type,
0.06～0.15 part of fluorine richness polyacrylate,
0.02～0.4 part of two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution,
0.02～0.1 part of zinc Isoocatanoate, 0.03～0.15 part of polyamide wax；
B component:
1 part of hexamethylene diisocyanate trimer, 0.1～0.2 part of toluene.
Preferably, the model of described silicone-modified Hydroxylated acrylic resin is FS-4365A.
Preferably,
In described acroleic acid polyurethane coating component A, each composition weight ratio is:
1 part of silicone-modified Hydroxylated acrylic resin,
0.65 part of F524 type aliphatic Polyaspartic Polyurea,
0.4 part of dimethylbenzene, 0.25 part of butyl acetate, 0.15 part of toluene,
0.2 part of blanc fixe, 0.25 part of Anhydrite, 0.5 part of membrane wrapping modified titanium dioxide of zirconium,
0.35 part of phthalocyanine blue, 0.09 part of organic silicon modified polyurethane,
0.015 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type,
0.08 part of fluorine richness polyacrylate,
0.15 part of two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution,
0.055 part of zinc Isoocatanoate, 0.06 part of polyamide wax；
In described B component, each composition weight ratio is:
1 part of hexamethylene diisocyanate trimer, 0.13 part of toluene.
Preferably, in described acroleic acid polyurethane coating, the part by weight of component A and B component is: 1:0.2～0.4.
Preferably, in described acroleic acid polyurethane coating, the part by weight of component A and B component is: 1:0.25.
A second aspect of the present invention provides the manufacture method of the low temperature curing type acroleic acid polyurethane coating of a kind of first aspect present invention, and described manufacture method comprises the following steps:
Step (1), silicone-modified Hydroxylated acrylic resin, dimethylbenzene mixing are uniformly dispersed, after whipping process adds polyamide wax, blanc fixe, Anhydrite and the membrane wrapping modified titanium dioxide of zirconium, stir under the rotating speed of 1100-1300r/min, when feed temperature reaches 45～55 DEG C, keep this temperature stirring 30min；
Step (2), continue stirring add F524 type aliphatic Polyaspartic Polyurea, phthalocyanine blue, butyl acetate, toluene, organic silicon modified polyurethane, the polyether-modified poly-methyl alkyl siloxane of BYK-325 type, fluorine richness polyacrylate, two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, and after zinc Isoocatanoate, 0.5h is stirred under the rotating speed of 1100-1300r/min, then grind 0.5～1h with sand mill, obtain the component A of described acroleic acid polyurethane coating；
Step (3), mixes the B component obtaining described acroleic acid polyurethane coating after being uniformly dispersed by hexamethylene diisocyanate trimer and toluene；
Step (4), obtains described acroleic acid polyurethane coating with B component after described component A being mixed homogeneously.
Preferably,
In step (1) and step (2), the part by weight of each component is:
null1 part of silicone-modified Hydroxylated acrylic resin，0.2～0.5 part of dimethylbenzene，0.03～0.15 part of polyamide wax，0.2～0.5 part of blanc fixe，0.2～0.6 part of Anhydrite，0.1～0.8 part of membrane wrapping modified titanium dioxide of zirconium，0.4～0.8 part of F524 type aliphatic Polyaspartic Polyurea，0.2～0.6 part of phthalocyanine blue，0.1～0.3 part of butyl acetate，0.1～0.2 part of toluene，0.05～0.15 part of organic silicon modified polyurethane，0.002～0.06 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type，0.06～0.15 part of fluorine richness polyacrylate，0.02～0.4 part two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester、Xylene solution，0.02～0.1 part of zinc Isoocatanoate；
In step (3), the part by weight of each component is:
1 part of hexamethylene diisocyanate trimer, 0.1～0.2 part of toluene.
Preferably,
In step (1) and step (2), the part by weight of each component is:
1 part of silicone-modified Hydroxylated acrylic resin, 0.4 part of dimethylbenzene, 0.06 part of polyamide wax, 0.2 part of blanc fixe, 0.25 part of Anhydrite, 0.5 part of membrane wrapping modified titanium dioxide of zirconium, 0.65 part of F524 type aliphatic Polyaspartic Polyurea, 0.35 part of phthalocyanine blue, 0.25 part of butyl acetate, 0.15 part of toluene, 0.09 part of organic silicon modified polyurethane, 0.015 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type, 0.08 part of fluorine richness polyacrylate, 0.15 part two (2, 2, 6, 6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, 0.055 part of zinc Isoocatanoate；
In step (3), the part by weight of each component is:
1 part of hexamethylene diisocyanate trimer, 0.13 part of toluene.
Preferably, component A described in step (4) with the part by weight of B component is: 1:0.2～0.4.
Preferably, component A described in step (4) with the part by weight of B component is: 1:0.25.
The acroleic acid polyurethane coating of the present invention, suitable in anticorrosion engineerings such as boats and ships, storage tank, refinery, bridge, harbours under-15 DEG C of low temperature environments, meets winter construction needs.
Technical scheme provided by the invention provides the benefit that:
(1) the F524 type aliphatic Polyaspartic Polyurea in the acroleic acid polyurethane coating of the present invention has special low-temp reaction group, it is possible to be copolymerized with isocyano at low temperatures；Zinc Isoocatanoate is a kind of low temperature radical initiator, the reaction of the hydroxyl in silicone-modified Hydroxylated acrylic resin and isocyano can be caused at low temperatures, reduce the chemical energy needed for hydroxyl and isocyano reaction, add film-forming resin low temperature environment reactivity.Two above component synergism, is effectively improved in acroleic acid polyurethane coating component A and the reaction rate of B component, improves the low-temperature fast-curing performance of paint coatings.Can quickly occurring curing reaction to form rigid film under-15 DEG C of low temperature environments compared with existing acroleic acid polyurethane coating, the coating time of doing solid work is only 24h.
(2) coating that the acroleic acid polyurethane coating of the present invention obtains after solidifying 24h has excellent combination property: pliability 1mm, shock-resistant 50cm, adhesion 1 grade；After solidifying 5～7 days, coating adhesion 8.5Mpa, salt spray resistance 2000h coating is intact, ultraviolet resistance aging (UVA) 2000h coating is intact, 30 days coatings of 10%H2SO4 soak at room temperature are intact, and 30 days coatings of 10%NaOH soak at room temperature are intact, and 30 days coatings of the soak at room temperature of resistance to artificial sea water are intact.
(3) production technology of the acroleic acid polyurethane coating of the present invention is simple, it is not necessary to special installation, and cost is low.
Detailed description of the invention
For making technical scheme and advantage clearly, below embodiment of the present invention is described further in detail.
First aspect present invention provides a kind of low temperature curing type acroleic acid polyurethane coating, and this acroleic acid polyurethane coating includes the component of following part by weight:
Component A:
1 part of silicone-modified Hydroxylated acrylic resin, 0.4～0.8 part of F524 type aliphatic Polyaspartic Polyurea,
0.2～0.5 part of dimethylbenzene, 0.1～0.3 part of butyl acetate, 0.1～0.2 part of toluene,
0.2～0.5 part of blanc fixe, 0.2～0.6 part of Anhydrite, 0.1～0.8 part of membrane wrapping modified titanium dioxide of zirconium,
0.2～0.6 part of phthalocyanine blue, 0.05～0.15 part of organic silicon modified polyurethane,
0.002～0.06 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type,
0.06～0.15 part of fluorine richness polyacrylate,
0.02～0.4 part of two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution,
0.02～0.1 part of zinc Isoocatanoate, 0.03～0.15 part of polyamide wax；
B component:
1 part of hexamethylene diisocyanate trimer, 0.1～0.2 part of toluene.
The content of present invention component and each component by improving acroleic acid polyurethane coating obtains a kind of acroleic acid polyurethane coating that can solidify in-15 DEG C of environment.
The component A of aforesaid propylene acid polyurethane coating is formulated plus a small amount of low-temp reaction catalyst, dispersant, defoamer, UV light stabilizing agent, levelling agent, thixotropic agent and color stuffing by silicone-modified Hydroxylated acrylic resin and F524 type aliphatic Polyaspartic Polyurea mixed solution；B component is made mixed solution by hexamethylene diisocyanate trimer and toluene.
Specifically,
Silicone-modified Hydroxylated acrylic resin is substantially free of styrene monomer, improves coating resistance to UV aging energy, it is provided that the combination property such as physical and mechanical properties and resistant to chemical media corrosion that coating is good.
F524 type aliphatic Polyaspartic Polyurea contains special low-temp reaction group, provide and be copolymerized ability with isocyano under low temperature environment, zinc Isoocatanoate is radical initiator, reduce the chemical energy needed for hydroxyl and isocyano reaction, add film-forming resin low temperature environment reactivity, improve reaction rate, both synergism, are effectively improved the low-temperature fast-curing property of coating.
Anhydrite, blanc fixe in color stuffing can increase coating machine intensity and anti-wear performance.
The membrane wrapping modified titanium dioxide of zirconium can light reflection ultraviolet effectively, improve the light aging resisting property of coating.
Using fluorine richness polyacrylate to reduce the surface tension of coating, improve coating mobility, the decorative appearance strengthening coating also can slough the bubble in coating simultaneously.
Ultraviolet light is played Stabilization by two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidines) SA ester, it is prevented that coating efflorescence, loss of gloss, improves coating light aging resisting property.
The organic silicon modified polyurethane used prevents the polycondensation of coating, floating by " the having control flocculation " between color stuffing, strengthens the storage stability of coating.
The trimerical molecular structure of hexamethylene diisocyanate contains active isocyano can with the special low-temp reaction group generation chemical reaction in the hydroxyl in silicone-modified Hydroxylated acrylic resin, F524 type aliphatic Polyaspartic Polyurea, make paint solidification to coating there is good chemical resistance, light aging resisting property and mechanical performance.
The effect of each component of summary, the part by weight of component each in the acroleic acid polyurethane coating of the present invention has been carried out preferably by inventor, specific as follows:
In component A, each composition weight ratio is:
Silicone-modified Hydroxylated acrylic resin, 1 part；
F524 type aliphatic Polyaspartic Polyurea, it is preferable that 0.65 part；
Dimethylbenzene, it is preferable that 0.4 part；
Butyl acetate, it is preferable that 0.25 part；
Toluene, it is preferable that 0.15 part；
Blanc fixe, it is preferable that 0.2 part；
Anhydrite, it is preferable that 0.25 part；
The membrane wrapping modified titanium dioxide of zirconium, it is preferable that 0.5 part；
Phthalocyanine blue, it is preferable that 0.35 part；
Organic silicon modified polyurethane, it is preferable that 0.09 part；
The polyether-modified poly-methyl alkyl siloxane of BYK-325 type, it is preferable that 0.015 part；
Fluorine richness polyacrylate, it is preferable that 0.08 part；
Two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, it is preferable that 0.15 part；
Zinc Isoocatanoate, it is preferable that 0.055；
Polyamide wax, it is preferable that 0.06；
In B component, each composition weight ratio is:
Hexamethylene diisocyanate trimer, 1 part,
Toluene, it is preferable that 0.13 part；
Component A and B component to be mixed by above-mentioned acroleic acid polyurethane coating in use, preferred 1:0.2～0.4 of part by weight of component A and B component, more preferably 1:0.25.
A second aspect of the present invention provides the manufacture method of the acroleic acid polyurethane coating of a kind of first aspect present invention, comprises the following steps:
Step (1), silicone-modified Hydroxylated acrylic resin, dimethylbenzene mixing are uniformly dispersed, after whipping process adds polyamide wax, blanc fixe, Anhydrite and the membrane wrapping modified titanium dioxide of zirconium, stir under the rotating speed of 1100-1300r/min, after feed temperature reaches 45～55 DEG C, at 45～55 DEG C, stir 30min；
Step (2), continue stirring add F524 type aliphatic Polyaspartic Polyurea, phthalocyanine blue, butyl acetate, toluene, organic silicon modified polyurethane, the polyether-modified poly-methyl alkyl siloxane of BYK-325 type, fluorine richness polyacrylate, two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, and after zinc Isoocatanoate, 0.5h is stirred under the rotating speed of 1100-1300r/min, then grind 0.5～1h with sand mill, obtain the component A of described acroleic acid polyurethane coating；
Step (3), mixes the B component obtaining described acroleic acid polyurethane coating after being uniformly dispersed by hexamethylene diisocyanate trimer and toluene；
Step (4), obtains described acroleic acid polyurethane coating with B component after described component A being mixed homogeneously.
Above-mentioned manufacturing approach craft is simple, it is not necessary to special installation, and cost is low.
In above-mentioned manufacture method, at 45～55 DEG C, 30min is stirred after step (1) adds polyamide wax, blanc fixe, Anhydrite and the membrane wrapping modified titanium dioxide of zirconium, it is to polyamide wax be applied high shear force at 45～55 DEG C, its globular molecule chain is made to be launched into straight chain, thus make coating in use, there is when high-speed stirred relatively low viscosity, when stopping stirring, return to high viscosity immediately, stop the coating sagging being just coated with, improve the workability of coating.
In above-mentioned manufacture method, step (1) and the ratio that in step (2), in component A and B component, each constituent content all limits according to first aspect present invention.
In above-mentioned manufacture method, in step (3), the ratio that the ratio of component A and B component also limits according to first aspect present invention, i.e. part by weight: preferably 1:0.2～0.4, more preferably 1:0.25.
In example 1 below～4, Primary Chemical used is as follows:
F524 type aliphatic Polyaspartic Polyurea: Zhuhai Feiyang Novel Material Co., Ltd.；
Two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, Lianyungang Shengnan Chemical Co., Ltd.；
Silicone-modified Hydroxylated acrylic resin: FS-4365A (hamming this)；
The membrane wrapping modified titanium dioxide of zirconium: R930 (stone is former)；
Organic silicon modified polyurethane: EFKA3033 (vapour Bagong department)；
Phthalocyanine blue: SX0205 (emerging toner company limited is entered in Guangdong)；
Polyether-modified poly-methyl alkyl siloxane solution: BYK-325 (BIC Corp of Germany)；
Fluorine richness polyacrylate: HSMFlowsuper2377 (Shanghai Run Dao trade Co., Ltd)；
Zinc Isoocatanoate: YZN-9 (Hebei Fu Ersite Chemical Co., Ltd.)；
Polyamide wax: MT6900-20X (Taiyuan Mei Te Xiang Be Able LLC).
Embodiment 1
The present embodiment provides low temperature curing type acroleic acid polyurethane coating and the manufacture method thereof of a kind of present invention.Concrete manufacturing step is as follows,
Step (1), in stainless charging basket, the 1 silicone-modified Hydroxylated acrylic resin of weight portion, 0.4 parts by weight of xylene mixing are uniformly dispersed, after whipping process adds 0.06 weight parts of polyamide wax, 0.2 blanc fixe, 0.25 weight portion Anhydrite and the 0.5 membrane wrapping modified titanium dioxide of weight portion zirconium, stir under the rotating speed of 1200r/min, after feed temperature reaches 50 DEG C, at 50 DEG C, stir 30min；
Step (2), continue stirring and add 0.65 weight portion F524 type aliphatic Polyaspartic Polyurea, 0.35 weight portion phthalocyanine blue, 0.25 parts by weight acetic acid butyl ester, 0.15 parts by weight of toluene, 0.09 weight portion organic silicon modified polyurethane, the 0.015 polyether-modified poly-methyl alkyl siloxane of weight portion BYK-325 type, 0.08 weight portion fluorine richness polyacrylate, 0.15 part two (2, 2, 6, 6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, and 0.055 after weight portion zinc Isoocatanoate, 0.5h is stirred under the rotating speed of 1200r/min, then 0.6h is ground with sand mill, obtain the component A of described acroleic acid polyurethane coating；
Step (3), obtains the B component of described acroleic acid polyurethane coating after 1 weight portion hexamethylene diisocyanate trimer and 0.13 part of toluene mixing being uniformly dispersed；
Step (4), obtains the acroleic acid polyurethane coating of the present invention with 0.25 part of B component after described 1 weight portion component A being mixed homogeneously.
Embodiment 2
The present embodiment provides low temperature curing type acroleic acid polyurethane coating and the manufacture method thereof of a kind of present invention.Concrete manufacturing step is as follows,
Step (1), in stainless charging basket, the 1 silicone-modified Hydroxylated acrylic resin of weight portion, 0.2 parts by weight of xylene mixing are uniformly dispersed, after whipping process adds 0.03 weight parts of polyamide wax, 0.2 blanc fixe, 0.2 weight portion Anhydrite and the 0.1 membrane wrapping modified titanium dioxide of weight portion zirconium, stir under the rotating speed of 1200r/min, after feed temperature reaches 50 DEG C, at 50 DEG C, stir 30min；
Step (2), continue stirring and add 0.4 weight portion F524 type aliphatic Polyaspartic Polyurea, 0.2 weight portion phthalocyanine blue, 0.1 parts by weight acetic acid butyl ester, 0.1 parts by weight of toluene, 0.05 weight portion organic silicon modified polyurethane, the 0.002 polyether-modified poly-methyl alkyl siloxane of weight portion BYK-325 type, 0.06 weight portion fluorine richness polyacrylate, 0.02 part two (2, 2, 6, 6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, and 0.02 after weight portion zinc Isoocatanoate, 0.5h is stirred under the rotating speed of 1200r/min, then 0.6h is ground with sand mill, obtain the component A of described acroleic acid polyurethane coating；
Step (3), obtains the B component of described acroleic acid polyurethane coating after 1 weight portion hexamethylene diisocyanate trimer and 0.1 part of toluene mixing being uniformly dispersed；
Step (4), obtains the acroleic acid polyurethane coating of the present invention with 0.2 part of B component after described 1 weight portion component A being mixed homogeneously.
Embodiment 3
The present embodiment provides low temperature curing type acroleic acid polyurethane coating and the manufacture method thereof of a kind of present invention.Concrete manufacturing step is as follows,
Step (1), in stainless charging basket, the 1 silicone-modified Hydroxylated acrylic resin of weight portion, 0.5 parts by weight of xylene mixing are uniformly dispersed, after whipping process adds 0.15 weight parts of polyamide wax, 0.5 blanc fixe, 0.6 weight portion Anhydrite and the 0.8 membrane wrapping modified titanium dioxide of weight portion zirconium, stir under the rotating speed of 1200r/min, after feed temperature reaches 50 DEG C, at 50 DEG C, stir 30min；
Step (2), continue stirring and add 0.8 weight portion F524 type aliphatic Polyaspartic Polyurea, 0.6 weight portion phthalocyanine blue, 0.3 parts by weight acetic acid butyl ester, 0.2 parts by weight of toluene, 0.15 weight portion organic silicon modified polyurethane, the 0.06 polyether-modified poly-methyl alkyl siloxane of weight portion BYK-325 type, 0.15 weight portion fluorine richness polyacrylate, 0.4 part two (2, 2, 6, 6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, and 0.1 after weight portion zinc Isoocatanoate, 0.5h is stirred under the rotating speed of 1200r/min, then 0.8h is ground with sand mill, obtain the component A of described acroleic acid polyurethane coating；
Step (3), obtains the B component of described acroleic acid polyurethane coating after 1 weight portion hexamethylene diisocyanate trimer and 0.1 part of toluene mixing being uniformly dispersed；
Step (4), obtains the acroleic acid polyurethane coating of the present invention with 0.4 part of B component after described 1 weight portion component A being mixed homogeneously.
Embodiment 4
The present embodiment provides low temperature curing type acroleic acid polyurethane coating and the manufacture method thereof of a kind of present invention.Concrete manufacturing step is as follows,
Step (1), in stainless charging basket, the 1 silicone-modified Hydroxylated acrylic resin of weight portion, 0.45 parts by weight of xylene mixing are uniformly dispersed, after whipping process adds 0.065 weight parts of polyamide wax, 0.25 blanc fixe, 0.25 weight portion Anhydrite and the 0.5 membrane wrapping modified titanium dioxide of weight portion zirconium, stir under the rotating speed of 1200r/min, after feed temperature reaches 55 DEG C, at 55 DEG C, stir 30min；
Step (2), continue stirring and add 0.65 weight portion F524 type aliphatic Polyaspartic Polyurea, 0.23 weight portion phthalocyanine blue, 0.25 parts by weight acetic acid butyl ester, 0.15 parts by weight of toluene, 0.09 weight portion organic silicon modified polyurethane, the 0.015 polyether-modified poly-methyl alkyl siloxane of weight portion BYK-325 type, 0.08 weight portion fluorine richness polyacrylate, 0.15 part two (2, 2, 6, 6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, and 0.065 after weight portion zinc Isoocatanoate, 0.5h is stirred under the rotating speed of 1200r/min, then 0.8h is ground with sand mill, obtain the component A of described acroleic acid polyurethane coating；
Step (3), obtains the B component of described acroleic acid polyurethane coating after 1 weight portion hexamethylene diisocyanate trimer and 0.15 part of toluene mixing being uniformly dispersed；
Step (4), obtains the acroleic acid polyurethane coating of the present invention with 0.3 part of B component after described 1 weight portion component A being mixed homogeneously.
According to following standard, the acroleic acid polyurethane coating coating performance of above-described embodiment 1～4 gained being tested: wherein low-temperature setting performance: GB/T1728, pliability: SY/T0315 annex, impact resistance: GB/T1732, adhesive force: GB/T5210, salt spray resistance: GB/T1771, acidproof and alkaline-resisting: GB/T9274, result is as follows:
Low-temperature setting performance ,-15 DEG C, 24h does solid work；
Pliability: 1mm, 1.5 ° of bendings, flawless；
Shock-resistant: 50cm, flawless；
Adhesive force: after solidifying 5～7 days, coating adhesion 8.5Mpa；
Salt spray resistance: 2000h coating is intact；
Ultraviolet resistance aging (UVA): 2000h coating is intact；
Resistance to 10%H2SO4: soak at room temperature, 30 days, coating was intact；
Resistance to 10%NaOH: soak at room temperature, 30 days, coating was intact；
Resistance to artificial sea water soaks: soak at room temperature, 30 days, coating was intact.
From above test result it can be seen that the acroleic acid polyurethane coating of the present invention has good low-temperature setting performance, can quickly occurring curing reaction to form rigid film under-15 DEG C of low temperature environments, the coating time of doing solid work is only 24h；Additionally, the acroleic acid polyurethane coating of the present invention also has excellent pliability, adhesive force, shock-resistant, salt spray resistance, acidproof, alkaline-resisting, resistance to UV aging energy.The winter construction needs of the anticorrosion engineering such as boats and ships, storage tank, refinery, bridge, harbour under-15 DEG C of low temperature environments can be met.
The above is for only for ease of those skilled in the art and understands technical scheme, not in order to limit the present invention.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a low temperature curing type acroleic acid polyurethane coating, it is characterised in that described acroleic acid polyurethane coating includes the component of following part by weight:
Component A:
1 part of silicone-modified Hydroxylated acrylic resin,
0.4～0.8 part of F524 type aliphatic Polyaspartic Polyurea,
0.2～0.5 part of dimethylbenzene, 0.1～0.3 part of butyl acetate, 0.1～0.2 part of toluene,
0.2～0.5 part of blanc fixe, 0.2～0.6 part of Anhydrite, 0.1～0.8 part of membrane wrapping modified titanium dioxide of zirconium,
0.2～0.6 part of phthalocyanine blue, 0.05～0.15 part of organic silicon modified polyurethane,
0.002～0.06 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type,
0.06～0.15 part of fluorine richness polyacrylate,
0.02～0.4 part of two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution,
0.02～0.1 part of zinc Isoocatanoate, 0.03～0.15 part of polyamide wax；
B component:
1 part of hexamethylene diisocyanate trimer, 0.1～0.2 part of toluene.
2. acroleic acid polyurethane coating according to claim 1, it is characterised in that the model of described silicone-modified Hydroxylated acrylic resin is FS-4365A.
3. acroleic acid polyurethane coating according to claim 1, it is characterised in that
In described acroleic acid polyurethane coating component A, each composition weight ratio is:
1 part of silicone-modified Hydroxylated acrylic resin,
0.65 part of F524 type aliphatic Polyaspartic Polyurea,
0.4 part of dimethylbenzene, 0.25 part of butyl acetate, 0.15 part of toluene,
0.2 part of blanc fixe, 0.25 part of Anhydrite, 0.5 part of membrane wrapping modified titanium dioxide of zirconium,
0.35 part of phthalocyanine blue, 0.09 part of organic silicon modified polyurethane,
0.015 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type,
0.08 part of fluorine richness polyacrylate,
0.15 part of two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution,
0.055 part of zinc Isoocatanoate, 0.06 part of polyamide wax；
In described B component, each composition weight ratio is:
1 part of hexamethylene diisocyanate trimer, 0.13 part of toluene.
4. acroleic acid polyurethane coating according to claim 1, it is characterised in that in described acroleic acid polyurethane coating, the part by weight of component A and B component is: 1:0.2～0.4.
5. acroleic acid polyurethane coating according to claim 4, it is characterised in that in described acroleic acid polyurethane coating, the part by weight of component A and B component is: 1:0.25.
6. the manufacture method of the low temperature curing type acroleic acid polyurethane coating described in a claim 1, it is characterised in that described manufacture method comprises the following steps:
Step (1), silicone-modified Hydroxylated acrylic resin, dimethylbenzene mixing are uniformly dispersed, after whipping process adds polyamide wax, blanc fixe, Anhydrite and the membrane wrapping modified titanium dioxide of zirconium, stir under the rotating speed of 1100-1300r/min, when feed temperature reaches 45～55 DEG C, keep this temperature stirring 30min；
Step (2), continue stirring add F524 type aliphatic Polyaspartic Polyurea, phthalocyanine blue, butyl acetate, toluene, organic silicon modified polyurethane, the polyether-modified poly-methyl alkyl siloxane of BYK-325 type, fluorine richness polyacrylate, two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution, and after zinc Isoocatanoate, 0.5h is stirred under the rotating speed of 1100-1300r/min, then grind 0.5～1h with sand mill, obtain the component A of described acroleic acid polyurethane coating；
Step (3), mixes the B component obtaining described acroleic acid polyurethane coating after being uniformly dispersed by hexamethylene diisocyanate trimer and toluene；
Step (4), obtains described acroleic acid polyurethane coating with B component after described component A being mixed homogeneously.
7. manufacture method according to claim 6, it is characterised in that
In step (1) and step (2), the part by weight of each component is:
1 part of silicone-modified Hydroxylated acrylic resin, 0.2～0.5 part of dimethylbenzene,
0.03～0.15 part of polyamide wax, 0.2～0.5 part of blanc fixe,
0.2～0.6 part of Anhydrite, 0.1～0.8 part of membrane wrapping modified titanium dioxide of zirconium,
0.4～0.8 part of F524 type aliphatic Polyaspartic Polyurea, 0.2～0.6 part of phthalocyanine blue,
0.1～0.3 part of butyl acetate, 0.1～0.2 part of toluene, 0.05～0.15 part of organic silicon modified polyurethane,
0.002～0.06 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type,
0.06～0.15 part of fluorine richness polyacrylate,
0.02～0.4 part of two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution,
0.02～0.1 part of zinc Isoocatanoate；
In step (3), the part by weight of each component is:
1 part of hexamethylene diisocyanate trimer, 0.1～0.2 part of toluene.
8. manufacture method according to claim 7, it is characterised in that
In step (1) and step (2), the part by weight of each component is:
1 part of silicone-modified Hydroxylated acrylic resin, 0.4 part of dimethylbenzene,
0.06 part of polyamide wax, 0.2 part of blanc fixe,
0.25 part of Anhydrite, 0.5 part of membrane wrapping modified titanium dioxide of zirconium,
0.65 part of F524 type aliphatic Polyaspartic Polyurea, 0.35 part of phthalocyanine blue,
0.25 part of butyl acetate, 0.15 part of toluene, 0.09 part of organic silicon modified polyurethane,
0.015 part of polyether-modified poly-methyl alkyl siloxane of BYK-325 type,
0.08 part of fluorine richness polyacrylate,
0.15 part of two (2,2,6,6-tetramethyl-1-octyloxy-4-piperidyl) butyl acetate of SA ester, xylene solution,
0.055 part of zinc Isoocatanoate；
In step (3), the part by weight of each component is:
1 part of hexamethylene diisocyanate trimer, 0.13 part of toluene.
9. manufacture method according to claim 6, it is characterised in that the part by weight of component A described in step (4) and B component is: 1:0.2～0.4.
10. manufacture method according to claim 9, it is characterised in that the part by weight of component A described in step (4) and B component is: 1:0.25.
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| CN112358799A (en) * | 2020-11-09 | 2021-02-12 | 雅图高新材料股份有限公司 | Primer-topcoat polyurethane protective coating |
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