CN104087084A - Self-cleaning coating capable of preventing icing and adhering and preparation method of self-cleaning coating - Google Patents
Self-cleaning coating capable of preventing icing and adhering and preparation method of self-cleaning coating Download PDFInfo
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Abstract
The invention discloses self-cleaning coating capable of preventing icing and adhering and a preparation method of the self-cleaning coating. By reasonably proportioning components, the obtained coating has characteristics of extremely low surface energy, extremely strong hydrophobicity, excellent weather resistance, excellent wear resistance and temperature change resistance, low curing temperature and the like, is not limited in hydrophobicity on coating surface, and is suitable for large-scale industrial application.
Description
[technical field]
The present invention relates to a kind of coating and preparation method thereof, be specifically related to self-cleaning coating of a kind of ice-covering-proof anti-adhesion and preparation method thereof.
[background technology]
Known, ice-covering-proof is a global difficult problem, in the multiple state of ice damage as Canada, the U.S. set up particular study mechanism, to solving icing problem, carried out a large amount of research, China had also carried out a large amount of research work to solving icing in recent years, the generally acknowledged solution of industry is to adopt anti-icing paint to reduce to greatest extent ice at the sticking power of coating surface at present, thereby makes ice pole easily come off and remove.
Contriver is through finding the retrieval of prior art document, Chinese patent, publication number is CN 102993933 A, it discloses wear-resisting low ice of environmental protection that a kind of inorganic nano-particle and water-base resin form and has adhered to icephobic coating, and this coating is water-borne coatings, its in construction process and material surface degree of cleaning require high, and this paint solidification temperature is 60 ℃～150 ℃, construction requirement is high, and simultaneously because solidification value is high, solidification process also needs to consume a large amount of heat energy.
Chinese patent, publication number is CN 102585635 A, it discloses a kind of icephobic coating and preparation method thereof, this invention coating contact angle is less, and contact angle is lower than 130 °, and hydrophobic performance is not good, and its ageing-resistant performance is only 1000h, can not meet high weather-proof application scenario.
Chinese patent, publication number is CN 102417773 A, and it discloses a kind of superhydrophobic acrylic resin paint, and also there is the problem that solidification value is high in this coating, and difficulty of construction is high, is not easy to large-scale industrial application etc.
[summary of the invention]
In order to overcome the deficiency existing in background technology, the invention provides self-cleaning coating of a kind of ice-covering-proof anti-adhesion and preparation method thereof, the present invention passes through the rational proportioning of each component, make coating that the present invention obtains have extremely low surface can, extremely strong hydrophobicity, have excellent weather resistance, the feature such as wear-resisting and resistance to temperature change can be excellent, hydrophobic performance is not limited to coatingsurface and solidification value is low, be applicable to large-scale industrial application etc.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
The self-cleaning coating of ice-covering-proof anti-adhesion, described coating comprises first component and second component, wherein the composition of first component comprises following composition by weight:
20～55 parts of solvent-borne type tetrafluoro type fluorocarbon resins;
0.5～1.5 part of wetting dispersing agent;
0.5～2 part of silane coupling agent;
8～20 parts of pigment;
6～18 parts of functional nanomaterials;
6～13 parts of coating materialss;
0.1～1.2 part of defoamer;
18～55 parts of organic solvents;
Wherein second component is aliphatic isocyanates, and the weight proportion of first component and second component is 10～30:1.
The described self-cleaning coating of ice-covering-proof anti-adhesion, described aliphatic isocyanates is any one or the multiple mixture of Bayer N3390 or Bayer N3800 or Yantai ten thousand magnificent HT-100.
The described self-cleaning coating of ice-covering-proof anti-adhesion, the HLR-Si of the GK570 that described solvent-borne type tetrafluoro type fluorocarbon resin is Daikin or Shanghai east fluorine or any one in HLR-2.
The described self-cleaning coating of ice-covering-proof anti-adhesion, described wetting dispersing agent is BYK-180 or the EFKA-4010 of BYK-110 or jade-like stone Kraft or the one or more combination in EFKA-5065 of Bi Ke chemistry.
The described self-cleaning coating of ice-covering-proof anti-adhesion, described silane coupling agent is the KH550 of Nanjing Lian Gui Chemical Co., Ltd. or any one in KH560.
The described self-cleaning coating of ice-covering-proof anti-adhesion, described pigment is the pigment dyestuff of weathering resistance mineral dye and stable performance.
The described self-cleaning coating of ice-covering-proof anti-adhesion, the R972 that described functional nanomaterials is Germany match or Anhui one or more the mixture in the HX-9600 of the micro-wax powder of tetrafluoroethylene of the JY100-9X of nano material company limited and tetrafluoroethylene micro-wax powder TF-9207 of JY100-01 or U.S. 3M or China's auxiliary agent of respecting work.
The described self-cleaning coating of ice-covering-proof anti-adhesion, described coating materials is BYK-3700 and the BYK-3650 of Bi Ke chemistry, described defoamer is Defomer 6800 or TEGO FOAMEXN.。
The described self-cleaning coating of ice-covering-proof anti-adhesion, described organic solvent is the mixing solutions of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate, wherein the weight ratio of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate is 1:1, and N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate are technical grade.
A preparation method for the self-cleaning coating of ice-covering-proof anti-adhesion, described method specifically comprises the steps:
One, preparation first component:
First by appropriate solvent-borne type tetrafluoro type fluorocarbon resin, wetting dispersing agent, silane coupling agent, defoamer and organic solvent add in dispersion tank, then with 1000～1500 turn/min rate of dispersions, disperse 10～20 minutes continuously, then add appropriate pigment and functional nanomaterials, with 2000～2500 revs/min, disperse to obtain for 20～30 minutes continuously mixture, mixture being put into sand mill after being uniformly dispersed grinds, being ground to fineness is 20～30 μ m, add appropriate coating materials, and then with 1000～1500 turn/min rate of dispersions, disperse 15～30 minutes continuously in dispersion tank, measure the qualified rear filtration discharging of viscosity, obtain the first component of this coating,
Two, preparation second component:
Connect step, take by weight aliphatic isocyanates as solidifying agent;
Three, prepare coating:
Connect step, rear direct use is prepared and stirred evenly to first component and second component in proportion.
Adopt technical scheme as above, the present invention has superiority as described below:
Self-cleaning coating of a kind of ice-covering-proof anti-adhesion of the present invention and preparation method thereof, mechanism of the present invention is to adopt solvent-borne type tetrafluoro type fluorocarbon resin as film forming matter, paint film weatherability energy, mechanical property excellence, and there is lower surface energy; Further, add several functions nano material to increase the hydrophobic performance of paint film, reduce the surface energy of paint film, structure nano-micrometre level surface, and the adhesion strength of paint film is promoted; Further, add coating materials to strengthen coating surface smoothness and adhesion strength, thereby and hydrophobic performance and the anti-adhesivity of increase coating surface nanoscale structures reinforcement paint film; Further, add the permanent weather resistance of pigment dyestuff assurance paint film of weathering resistance mineral dye and stable performance; Further, add composite organic solvent to regulate solvability and the solvent rate of release of resin, and the workability of improving coating; Further, add defoamer and mainly eliminate the bubble forming in coating material production or construction process; Further, add wetting dispersing agent, to strengthen between resin and pigment, moisture dispersibility between resin and functional nanomaterials, deflocculation or control flocculation, prevent loose colour, grow dim, prevent scattered functional nanomaterials cohesion, realize the homogeneity of system; Further, add silane coupling agent, to be used for coupling organic polymer and mineral filler, strengthen its cohesiveness, improve the machinery of paint film, the performance such as electric, water-fast, anti-aging.
Compared with prior art, the present invention has following beneficial effect:
(1) weather resistance of product of the present invention is high, UVB artificial ageing resistance test 3000h, nondiscoloration, not efflorescence, loss of gloss one-level;
(2) hydrophobic performance of coating of the present invention is stable, and hydrophobic performance is not confined to coatingsurface, even coatingsurface wearing and tearing, coated inside still keeps good hydrophobic performance;
(3) excellent in abrasion resistance of coating of the present invention, load 1000g, 500 consumptions of going round and round a millstone are less than 15mg etc.
[embodiment]
By the following examples, can explain in more detail the present invention, the present invention is not limited to the following examples;
The self-cleaning coating of a kind of ice-covering-proof anti-adhesion of the present invention, described coating comprises first component and second component, wherein the composition of first component comprises following composition by weight:
20～55 parts of solvent-borne type tetrafluoro type fluorocarbon resins; 0.5～1.5 part of wetting dispersing agent;
0.5～2 part of silane coupling agent; 8～20 parts of pigment;
6～18 parts of functional nanomaterials; 6～13 parts of coating materialss;
0.1～1.2 part of defoamer; 18～55 parts of organic solvents;
Wherein second component is aliphatic isocyanates, and the weight proportion of first component and second component is 10～30:1.
Wherein aliphatic isocyanates of the present invention is any one or the multiple mixture of Bayer N3390 or Bayer N3800 or Yantai ten thousand magnificent HT-100.
Wherein aliphatic isocyanates of the present invention is one or both combinations in HDI tripolymer or IPDI tripolymer.
The HLR-Si of the GK570 that wherein solvent-borne type tetrafluoro type fluorocarbon resin of the present invention is Daikin or Shanghai east fluorine or any one in HLR-2.
Wherein wetting dispersing agent of the present invention is BYK-180 or the EFKA-4010 of BYK-110 or jade-like stone Kraft or the one or more combination in EFKA-5065 of Bi Ke chemistry.
Wherein silane coupling agent of the present invention is the KH550 of Nanjing Lian Gui Chemical Co., Ltd. or any one in KH560.
Wherein pigment of the present invention is the pigment dyestuff of weathering resistance mineral dye and stable performance.
Wherein the pigment described in the present invention is any one in titanium dioxide R960 or titanium dioxide R2012 or medium chrome yellow medium yellow.
The R972 that wherein functional nanomaterials of the present invention is Germany match or Anhui one or more the mixture in the HX-9600 of the micro-wax powder of tetrafluoroethylene of the JY100-9X of nano material company limited and tetrafluoroethylene micro-wax powder TF-9207 of JY100-01 or U.S. 3M or China's auxiliary agent of respecting work.
Wherein coating materials of the present invention is BYK-3700 and the BYK-3650 of Bi Ke chemistry, and described defoamer is Defomer 6800 or TEGO FOAMEXN.。
Wherein organic solvent of the present invention is the mixing solutions of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate, and wherein the weight ratio of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate is 1:1, and N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate are technical grade.
The preparation method of the self-cleaning coating of a kind of ice-covering-proof anti-adhesion of the present invention, described method specifically comprises the steps:
One, preparation first component:
First by appropriate solvent-borne type tetrafluoro type fluorocarbon resin, wetting dispersing agent, silane coupling agent, defoamer and organic solvent add in dispersion tank, then with 1000～1500 turn/min rate of dispersions, disperse 10～20 minutes continuously, then add appropriate pigment and functional nanomaterials, with 2000～2500 revs/min, disperse to obtain for 20～30 minutes continuously mixture, mixture being put into sand mill after being uniformly dispersed grinds, being ground to fineness is 20～30 μ m, add appropriate coating materials, and then with 1000～1500 turn/min rate of dispersions, disperse 15～30 minutes continuously in dispersion tank, measure the qualified rear filtration discharging of viscosity, obtain the first component of this coating,
Two, preparation second component:
Connect step, take by weight aliphatic isocyanates as solidifying agent;
Three, prepare coating:
Connect step, rear direct use is prepared and stirred evenly to first component and second component in proportion.
Proportioning in following examples of the present invention is calculated by weight.
Specific embodiments of the invention 1:
The described self-cleaning coating of a kind of ice-covering-proof anti-adhesion, shown in composition table composed as follows:
First component: the quality proportioning=20:1 of second component.
Embodiment 1 coating technology index is as shown in the table:
(note *: cycling condition: 5 ℃, 2h; 2h is cooled to-40 ℃;-40 ℃, 6h; 2h is warmed up to 5 ℃; 5 ℃, 2h; 2h is warmed up to 60 ℃, 98%RH; 60 ℃, 98%RH, 6h; 2h is cooled to 5 ℃)
This example paint film model, after artificial ageing resistance 3000h, still has strong hydrophobicity performance, and contact angle is 148.6 °, and adhesive tape is easy to tear, and watercolor pen and ink are not easy to adhere to.Coating is after 200 order sand paperings, and contact angle is 150.4 °, still has strong hydrophobicity performance.
Specific embodiments of the invention 2:
Described a kind of ice-covering-proof anti-adhesion self-cleaning coating, shown in composition table composed as follows:
First component: the quality proportioning=10:1 of second component.
Embodiment 2 coating technology indexs are as shown in the table:
(note *: cycling condition: 5 ℃, 2h; 2h is cooled to-40 ℃;-40 ℃, 6h; 2h is warmed up to 5 ℃; 5 ℃, 2h; 2h is warmed up to 60 ℃, 98%RH; 60 ℃, 98%RH, 6h; 2h is cooled to 5 ℃)
This example paint film model, after artificial ageing resistance 3000h, still has strong hydrophobicity performance, and contact angle is 152.3 °.Adhesive tape is easy to tear, and watercolor pen and ink are not easy to adhere to.Layer is after 200 order sand paperings, and contact angle is 152.1 °, still has strong hydrophobicity performance.
Specific embodiments of the invention 3:
Described a kind of ice-covering-proof anti-adhesion self-cleaning coating, shown in composition table composed as follows:
First component: the quality proportioning=30:1 of second component.
Embodiment 3 coating technology indexs are as shown in the table:
(note *: cycling condition: 5 ℃, 2h; 2h is cooled to-40 ℃;-40 ℃, 6h; 2h is warmed up to 5 ℃; 5 ℃, 2h; 2h is warmed up to 60 ℃, 98%RH; 60 ℃, 98%RH, 6h; 2h is cooled to 5 ℃)
This example paint film model, after artificial ageing resistance 3000h, still has strong hydrophobicity performance, and contact angle is 150.1 °.Adhesive tape is easy to tear, and watercolor pen and ink are not easy to adhere to.Layer is after 200 order sand paperings, and contact angle is 153.2 °, still has strong hydrophobicity performance.
The coating making by above-mentioned three examples explanation the present invention has weathering resistance and the wear resisting property of stable strong hydrophobicity performance, excellence, can reach the long-term self-cleaning effect of ice-covering-proof anti-adhesion.
The present invention has following performance:
(1) extremely low surface energy, surface can be less than 1.2 * 10
-4nm
-1;
(2) extremely strong hydrophobicity, water is greater than 150 ° to the contact angle of paint film;
(3) have excellent weather resistance, wear-resisting and resistance to temperature change can be excellent, keeps lastingly good ice-covering-proof effect;
(4) hydrophobic performance is not limited to coatingsurface, even coatingsurface wearing and tearing, coated inside still keeps good hydrophobic performance;
(5) solidification value is low, and normal temperature is curable.
The coating obtaining by the present invention mainly reaches ice-covering-proof effect by following two approach:
(1) fall low surface energy, ice cannot be adhered in the film coated surface of low surface energy or little at film coated surface adhesive power;
(2) improve hydrophobicity performance, water droplet is increased at the contact angle of film coated surface, reduce water droplet in the film coated surface residence time, thereby reduce the generation of the icing phenomenon of coating surface.
Wherein low surface energy film also very little to the adhesivity of other materials, such as adhesive tape, watercolor pen and ink, sticking on its surperficial paster advertisement can be taken off easily, and watercolor pencil is difficult on its surface, write or just can be wiped very easily, so this coating also has anti-adhesiving effect.
In addition, due to its hydrophobicity performance, the contact angle of water droplet and film coated surface is larger, water droplet can form the spherical globule on its surface, as long as tilt a little film coated surface or have in the situation of wind, water droplet will tumble from film coated surface, can take away surperficial dust and reach automatically cleaning effect when tumbling.
Therefore pass through to reduce the surface energy of paint film, and improve the hydrophobic nature of coating surface, can realize ice-covering-proof, the antiseized self-cleaning function of echoing.
Part not in the detailed description of the invention is prior art.
The embodiment selecting in this article in order to disclose object of the present invention, currently thinks suitablely, still, will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and invention scope.
Claims (10)
1. the self-cleaning coating of ice-covering-proof anti-adhesion, is characterized in that: described coating comprises first component and second component, and wherein the composition of first component comprises following composition by weight:
20～55 parts of solvent-borne type tetrafluoro type fluorocarbon resins;
0.5～1.5 part of wetting dispersing agent;
0.5～2 part of silane coupling agent;
8～20 parts of pigment;
6～18 parts of functional nanomaterials;
6～13 parts of coating materialss;
0.1～1.2 part of defoamer;
18～55 parts of organic solvents;
Wherein second component is aliphatic isocyanates, and the weight proportion of first component and second component is 10～30:1.
2. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, is characterized in that: described aliphatic isocyanates is any one or the multiple mixture of Bayer N3390 or Bayer N3800 or Yantai ten thousand magnificent HT-100.
3. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, is characterized in that: the HLR-Si of the GK570 that described solvent-borne type tetrafluoro type fluorocarbon resin is Daikin or east, Shanghai fluorine or any one in HLR-2.
4. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, is characterized in that: described wetting dispersing agent is BYK-180 or the EFKA-4010 of BYK-110 or jade-like stone Kraft or the one or more combination in EFKA-5065 of Bi Ke chemistry.
5. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, is characterized in that: described silane coupling agent is the KH550 of Nanjing Lian Gui Chemical Co., Ltd. or any one in KH560.
6. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, is characterized in that: described pigment is the pigment dyestuff of weathering resistance mineral dye and stable performance.
7. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, is characterized in that: the R972 that described functional nanomaterials is Germany's match or Anhui one or more the mixture in the HX-9600 of the micro-wax powder of tetrafluoroethylene of the JY100-9X of nano material company limited and tetrafluoroethylene micro-wax powder TF-9207 of JY100-01 or U.S. 3M or China's auxiliary agent of respecting work.
8. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, is characterized in that: described coating materials is BYK-3700 and the BYK-3650 of Bi Ke chemistry, and described defoamer is Defomer 6800 or TEGO FOAMEXN.
9. the self-cleaning coating of ice-covering-proof anti-adhesion according to claim 1, it is characterized in that: described organic solvent is the mixing solutions of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate, wherein the weight ratio of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate is 1:1, and N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate are technical grade.
10. the preparation method who utilizes the self-cleaning coating of a kind of ice-covering-proof anti-adhesion of the self-cleaning coating of a kind of ice-covering-proof anti-adhesion described in the arbitrary claim of claim 1～9, described method specifically comprises the steps:
One, preparation first component:
First by appropriate solvent-borne type tetrafluoro type fluorocarbon resin, wetting dispersing agent, silane coupling agent, defoamer and organic solvent add in dispersion tank, then with 1000～1500 turn/min rate of dispersions, disperse 10～20 minutes continuously, then add appropriate pigment and functional nanomaterials, with 2000～2500 revs/min, disperse to obtain for 20～30 minutes continuously mixture, mixture being put into sand mill after being uniformly dispersed grinds, being ground to fineness is 20～30 μ m, add appropriate coating materials, and then with 1000～1500 turn/min rate of dispersions, disperse 15～30 minutes continuously in dispersion tank, measure the qualified rear filtration discharging of viscosity, obtain the first component of this coating,
Two, preparation second component:
Connect step, take by weight aliphatic isocyanates as solidifying agent;
Three, prepare coating:
Connect step, rear direct use is prepared and stirred evenly to first component and second component in proportion.
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| CN107386423A (en) * | 2017-07-06 | 2017-11-24 | 浙江海贝机电科技有限公司 | A kind of sewage lifting integrated apparatus |
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| CN111378356A (en) * | 2020-04-09 | 2020-07-07 | 中国船舶重工集团公司第七二五研究所 | Anti-icing coating for low-temperature high-humidity environment and preparation method thereof |
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