CN100500781C - Nano composite top facing paint with hydrophobic foul resisting sticking-proof performance and preparation process thereof - Google Patents
Nano composite top facing paint with hydrophobic foul resisting sticking-proof performance and preparation process thereof Download PDFInfo
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- CN100500781C CN100500781C CNB2006100837242A CN200610083724A CN100500781C CN 100500781 C CN100500781 C CN 100500781C CN B2006100837242 A CNB2006100837242 A CN B2006100837242A CN 200610083724 A CN200610083724 A CN 200610083724A CN 100500781 C CN100500781 C CN 100500781C
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- hydrophobic
- antiseized
- filler
- overlay coating
- nano combined
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Abstract
The invention relates to a nanometer compound cover paint which has the hydrophobicity and is resistance to the pollution and the sticking. The paint contains the film forming material, the antifouling component, the filler and the diluting agent, necessary the wetting agent, dispersant and the thickener. So it can be used for the antifouling of the high-end building and the protection for the outlook of the public utility.
Description
Technical field
The present invention relates to a kind of coating and preparation method thereof, be specifically related to a kind of hydrophobic, resistant and antiseized nano combined overlay coating and preparation method thereof.
Background technology
The surperficial print resistance of common coating is very weak, is polluted by all contaminations such as dust, oil stain easily.Natural lotus leaf surface has good reduction surface tension ability, thereby has good hydrophobic nature, and emerges unstained from the filth, and therefore many lotus leaf effect coatings arise at the historic moment.
Broad scale research to nano composite dope starts from the nineties in last century both at home and abroad.The transparent super wearproof nano paint of NanoTufCoatings that U.S. TritonSystem company produces, organically-modified nanometer china clay is joined in the fluoropolymer resin base, the coating that makes can improve hardness, scratch resistance and the wear resistance of coating greatly, and this coating improves 2-4 doubly than traditional coating wear resistance.U.S. NSF has also proposed a related item application recently, its main points are coating properties that research contains the inorganic nano compound, control by fine dispersion, the interfacial interaction of research nanoparticle and resin matrix, the gas barrier of filming, thermostability, antioxygen, stretchiness and cold resistance etc., provide foundation for further developing the high-performance coating that is used for aircraft, space and related industries, to reduce maintenance cost greatly.
Nano material is meant that particle diameter has the material of specific physical chemical property between the 1-100 nanometer.
Research to super-hydrophobic coating starts from the fifties in last century in the world, to the end of the nineties in last century, the especially raising of study of surfaces technique means of development along with the Surface Science technology, people have poured into bigger concern to the research of super-hydrophobic coating, its tempting potential application prospect more evokes the bigger research interest of people, poured into bigger energy and manpower, promoted the development of this area research greatly, fundamental research and applied research have all obtained huge achievement.Wherein the U.S., Germany, Japan, Australia have all carried out this research.In hydrophobic field, using more at present, product mainly contains wax class, organosilicon and organic fluorine series or the like at present.Lotus leaf effect coating on the market all is to adopt these type products, realize reducing surface tension by hydrophobic effect by reducing surface tension, reality is exactly to improve the contact angle of coating and water, but this raising is limited, multipotency is increased to about 120 °, and coating does not change substantially with the contact area of dust simultaneously, can't arrive the effect of preventing contamination, therefore, the result of lotus leaf effect is limited, is difficult to reach both kept dried coating film, has the characteristics of anti-contamination again.At present, nano material and low surface energy material are combined improve hydrophobicity and the antiseized Research on ability of anti-contamination actually rare.
In the prior art, Australian Patent AU9876545, disclose a kind of preparation method of nano composite dope, the suspension of promptly a kind of free flowable inorganic nano-particle and polymkeric substance forms a kind of coating that certain degree of hardness is arranged by pouring mould or substrate surface into.Japanese Patent JP2005-82616 scolds water-to-film composition and preparation thereof about surpassing, said composition contains the organic solvent that hydrophobic fine particle, wax and boiling point are higher than the wax fusing point, the mixture of D-limonene, carnauba wax (83 ℃ of fusing points) and Aerosi1R972 is sprayed at acrylic melamine plate or automobile bonnet part, and it is all easy that the coating of formation applies and peels off.Having announced in the article " infrared characteristic of polyurethane/nano composite coating and Mechanical Properties thereof " on " polymer material science and engineering " 03 phase in 2002 such as Li Qi side selects for use three kinds of fillers (nanometric magnesium hydroxide, chromic oxide, ITO) that urethane is carried out blending and modifying, and the filler of different content and the relation of performance have been discussed, mainly showing as this coating scrubbing resistance number of times and hardness increases.
Can find out that from above-mentioned document analysis the dewatering nano composite coating all has bibliographical information both at home and abroad,, all only limit to simple information, not relate to detailed solution though these documents have all related to the dewatering nano composite coating.
Summary of the invention
At the defective that exists in the prior art, the purpose of this invention is to provide a kind of nano combined overlay coating and preparation method thereof, this nano combined overlay coating and preparation method thereof is incorporated into nano material in the overlay coating, thereby realize improving performances such as coating is ageing-resistant, scrubbing resistance, scrape resistant, this coating can make coating roughness be in nanometer level or near nanometer level simultaneously, and the surface that forms behind this coating application can surpass 140 ° to the contact angle of water, thereby makes coating have super-hydrophobic and super anti-contamination and antiseized function; Simultaneously, this coating has the transparency preferably, and being sprayed at substrate surface does not influence original color of base material and gloss.
Another object of the present invention is to provide a kind of method for preparing nano combined overlay coating: the fillers dispersed that at first will contain nano material becomes steady suspension, makes particle keep good monodisperse status; The suspension that will contain this nano material then joins in the coating system.
For reaching above purpose, the technical solution used in the present invention is:
A kind of hydrophobic, resistant and antiseized nano combined overlay coating comprise following component and content (weight percent):
(1) filmogen, content is: 0.1%-20%;
(2) antifouling composition, content is: 5-20%;
(3) filler, content is: 0.1%-20%;
(4) thinner, content is: 70-84%;
(5) thickening material, content is: 0%-15%;
(6) wetting and dispersion agent, content is: 0%-5%.
Wherein, described filmogen is organosilicon crylic acid latex or silicone resin.
Described antifouling composition is liquid polysiloxane or the fluorochemical polyether with functional group;
Described filler is a kind of in silicon-dioxide, titanium dioxide, zinc oxide, aluminium sesquioxide, the lime carbonate or wherein severally arbitrarily carries out the blended mixture with arbitrary proportion.
The particle diameter of described filler is nano level (less than 100 nanometers), or the mixing of nano level (less than 100 nanometers) and submicron order (100nm-1 μ m), or the mixing of nano level (less than 100 nanometers) and submicron order (100nm-1 μ m), micron order (1 μ m-5 μ m).
Described thinner is water, solvent oil or alcohols.
Described thickening material is wilkinite, Mierocrystalline cellulose, modified polyether, acrylic ester emulsion, polyester or urethane.
Described wetting and dispersion agent is high molecular weight copolymer, acrylate copolymer, the high molecular weight block copolymer solution that contains the pigment affinity groups, or contains the alkane hydroxylammonium salts etc. of the block interpolymers of acidic-group.
The preparation method of a kind of hydrophobic, resistant of the present invention and antiseized nano combined overlay coating, step is as follows:
At first that nano combined overlay coating of the present invention is required filler joins in the thinner under higher stirring velocity, so that the good dispersion state of filler retention is added with wetting dispersing agent in case of necessity in advance in the thinner; Through after the high speed dispersion with the suspension sand milling; Again the suspension behind the sand milling is mixed with film forming composition, antifouling composition, add thickening material in case of necessity and adjust viscosity;
Described higher stirring velocity is meant that the rotating speed of agitator is higher than 3000r/min.
Further, mix with other component again after preferably earlier described fillers dispersed being become the suspension of high density.
Further, in the suspension process that described fillers dispersed is become high density, also contain process of lapping.When described process of lapping is meant pigment premix slurry by sand mill or other high-efficient grinding equipment, be able to fine dispersive process through the powerful shearing action between pearl grinding medium and the barrel under the impeller high degree of agitation situation.
When using nano combined overlay coating of the present invention, need and should adopt several different methods such as spraying, roller coating to construct by nano combined overlay coating, so that it is evenly distributed on the various materials, spraying method be more excellent in the constructional method.
Effect of the present invention is: adopt nano combined overlay coating of the present invention and preparation method thereof, can realize performances such as coating is ageing-resistant, scrubbing resistance, scrape resistant, this nano combined overlay coating is owing to introduced the low surface energy material simultaneously, simultaneously because nano material has carried out disperseing to remain on preferably monodisperse status in advance, make the surface have the nano level roughness, thereby make coating have hydrophobic and the antiseized function of resistant; And this coating has the transparency preferably, and being sprayed at substrate surface does not influence original color of base material and gloss, can keep base material original attractive in appearance.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1:
Prepare a kind of hydrophobic, resistant of the present invention and antiseized nano combined overlay coating (weight percent) according to following ratio:
A. organosilicon crylic acid latex 10%
B. fluorochemical polyether 7%
C. nano-calcium carbonate 5%
D. nano titanium oxide 5%
E. water 70%
F. thickening material NLS200 1.5%
G. wetting dispersing agent SK 5,040 1.5%.
Preparation method: at first nano-calcium carbonate 30 grams, nano titanium oxide 30 grams are added under the higher stirring velocity of 4000r/min rotating speed in the stainless steel vessel that installs to 131 gram water, be added with the polycarboxylic acid salt's wetting dispersing agent SK5040 that is dispersed with 9 grams in the less water in advance in the water in advance.Forming solid content after 1 hour through high speed dispersion was 30% nanometer colloid, with the further sand milling of nanometer colloid 1 hour.With under 1000r/min speed, mixing dispersion in the components such as the nanometer colloid behind the sand milling and organosilicon crylic acid latex 60 grams, fluorine surfactant fluorochemical polyether 42 grams, 289 gram water, mix the back and use 9 gram thickening material NLS200 to be thickened to viscosity 1000-2000mPaS again.
Described thickening material NLS200 is a He Ke man of great strength company modified polyether product, and described wetting dispersing agent SK5040 produces the polycarboxylate series products for initiative nanometer company.
Contact angle can reach 140 degree when this nano combined overlay coating of the present invention was sprayed at common filming, and smearing that this coating forms has resistance to soiling and non-stick property preferably, can be used for appearance of the city transformation, the building renovation, or be used for the top-grade building surface, can play persistent hydrophobic, resistant and the anti-effect of being stained with.
Embodiment 2:
A kind of hydrophobic, resistant and antiseized nano combined overlay coating, each composition and content following (weight percent):
A. the nano modification organosilicon crylic acid latex 5%
B. the liquid polysiloxane 10% that has functional group
C. micron order zinc oxide 2%
D. submicron alumina 3%
E. ethanol 5%
F. water 75%
The preparation method: other steps are identical with embodiment 1, and difference is in the present embodiment, do not add wetting dispersing agent when described fillers dispersed is become the suspension of high density.In the suspension process that described fillers dispersed is become high density, do not contain process of lapping, and do not add thickening material.
Embodiment 3: a kind of hydrophobic, resistant and antiseized nano combined overlay coating, and each composition and content following (weight percent):
A. the organosilicon resin 5%
B. fluorochemical polyether 10%
C. nano silicon 6%
E. wetting dispersing agent BYK180 1%
F.200# solvent oil 78%
Preparation method: at first nano silicon 60 grams are added under the higher stirring velocity of 4000r/min rotating speed in the stainless steel vessel that installs to 110 gram 200# solvent oils, be dispersed with the wetting dispersing agent BYK180 of 6 grams in the water in advance.Forming solid content after 1 hour through high speed dispersion was 30% nanometer colloid, with the further sand milling of nanometer colloid 1 hour.Disperseed 30 minutes under 1000r/min speed, mixing in the nanometer colloid behind the sand milling and organosilicon resin 50 grams, fluorochemical polyether 50 grams, the 670 gram 200# solvent wet goods components again.
Described 200# solvent oil is the conventional commodity in industrial chemicals market, and BYK180 is the alkane hydroxylammonium salts wetting dispersing agent of the Bi Ke company product interpolymer that contains acidic-group.
Embodiment 4:
A kind of hydrophobic, resistant and antiseized nano combined overlay coating, each composition and content following (weight percent):
A. organosilicon crylic acid latex 5%
B. fluorochemical polyether 5%
C. nano-calcium carbonate 1%
D. nano titanium oxide 1%
E. nano silicon oxide 1%
F. water 84%
G. wetting dispersing agent SK 5,040 1%
H. thickening material SCT275 2%
The preparation method: other steps are identical with embodiment 1, and difference is raw materials used kind and proportioning difference.
Described thickening material SCT275 is Rhom and Hass's non-ionic associative type thickening material.
Embodiment 5:
A kind of hydrophobic, resistant and antiseized nano combined overlay coating, each composition and content following (weight percent):
A. the nano modification organosilicon crylic acid latex 20%
B. the liquid polysiloxane 15% that has functional group
C. micron order lime carbonate 3%
D. micron order titanium dioxide 8%
E. nano silicon oxide 1%
F. water 47%
G. wetting dispersing agent SK 5,040 1%
H. thickening material 250HBR (2%) 5%
The preparation method: other steps are identical with embodiment 1, and difference is raw materials used kind proportioning difference, and 250HBR will be dispersed into 2% water dispersion in advance.
Thickening material 250HBR is a He Ke man of great strength company cellulose prods.
The present invention is illustrated with the illustrational embodiment of this paper, and the present invention also can implement with other ad hoc fashion or other particular form, and does not depart from main idea of the present invention or essential characteristic.Therefore, the embodiment of description all should be considered as illustrative from any aspect but not be determinate.Scope of the present invention should be by the explanation of additional claim, and the intention of any and claim and the variation of scope equivalence also should be within the scope of the present invention.
Claims (10)
1. a hydrophobic antifouling and antiseized nano combined overlay coating by weight percentage, comprise following component and content:
(1) filmogen, content is: 0.1%-20%;
(2) antifouling composition, content is: 5-20%;
(3) filler, content is: 0.1%-20%;
(4) thinner, content is: 70-84%;
(5) thickening material, content is: 0%-15%;
(6) wetting and dispersion agent, content is: 0%-5%;
Described filmogen is organosilicon crylic acid latex or silicone resin; Described antifouling composition is liquid polysiloxane or the fluorochemical polyether with functional group.
2. a kind of hydrophobic antifouling as claimed in claim 1 and antiseized nano combined overlay coating is characterized in that: described filler is a kind of in silicon-dioxide, titanium dioxide, zinc oxide, aluminium sesquioxide, the lime carbonate or wherein severally arbitrarily carries out the blended mixture with arbitrary proportion.
3. a kind of hydrophobic antifouling as claimed in claim 2 and antiseized nano combined overlay coating, it is characterized in that: the particle diameter of described filler is less than 100 nanometers.
4. a kind of hydrophobic antifouling as claimed in claim 2 and antiseized nano combined overlay coating, it is characterized in that: described filler is to be mixed less than the filler that the filler and the particle diameter of 100 nanometers is between the 100nm-1 μ m by particle diameter, or being in filler, particle diameter between the 100nm-1 μ m by particle diameter less than the filler of 100 nanometers and particle diameter is in that filler between the 1 μ m-5 μ m mixes.
5. a kind of hydrophobic antifouling as claimed in claim 1 and antiseized nano combined overlay coating is characterized in that: described thinner is water, solvent oil or alcohols.
6. a kind of hydrophobic antifouling as claimed in claim 1 and antiseized nano combined overlay coating is characterized in that: described thickening material is wilkinite, Mierocrystalline cellulose, modified polyether, acrylic ester emulsion, polyester or urethane.
7. a kind of hydrophobic antifouling as claimed in claim 1 and antiseized nano combined overlay coating is characterized in that: described wetting and dispersion agent is high molecular weight copolymer, polycarboxylate, acrylate copolymer, high molecular weight block copolymer solution that contains the pigment affinity groups or the alkane hydroxylammonium salts that contains the block interpolymers of acidic-group.
8. method for preparing hydrophobic, resistant as claimed in claim 1 and antiseized nano combined overlay coating, step is as follows:
At first that nano combined overlay coating of the present invention is required filler joins in the thinner under higher stirring velocity, so that the good dispersion state of filler retention is added with wetting dispersing auxiliary in case of necessity in advance in the thinner; Through after the high speed dispersion with the suspension sand milling; Again the suspension behind the sand milling is mixed with film forming composition, antifouling composition, add thickening material in case of necessity and adjust viscosity;
Described higher stirring velocity is meant that the rotating speed of agitator is higher than 3000r/min.
9. the preparation method of a kind of hydrophobic, resistant as claimed in claim 8 and antiseized nano combined overlay coating is characterized in that: mix with other component after earlier described fillers dispersed being become the suspension of high density again.
10. the preparation method of a kind of hydrophobic, resistant as claimed in claim 8 and antiseized nano combined overlay coating, it is characterized in that: in the suspension process that described fillers dispersed is become high density, also contain process of lapping, when described process of lapping is meant pigment premix slurry by sand mill or other high-efficient grinding equipment, be able to fine dispersive process through the powerful shearing action between pearl grinding medium and the barrel under the impeller high degree of agitation situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100837242A CN100500781C (en) | 2006-06-02 | 2006-06-02 | Nano composite top facing paint with hydrophobic foul resisting sticking-proof performance and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100837242A CN100500781C (en) | 2006-06-02 | 2006-06-02 | Nano composite top facing paint with hydrophobic foul resisting sticking-proof performance and preparation process thereof |
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| CN1861714A CN1861714A (en) | 2006-11-15 |
| CN100500781C true CN100500781C (en) | 2009-06-17 |
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| CNB2006100837242A Expired - Fee Related CN100500781C (en) | 2006-06-02 | 2006-06-02 | Nano composite top facing paint with hydrophobic foul resisting sticking-proof performance and preparation process thereof |
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| CN103547636A (en) * | 2011-05-16 | 2014-01-29 | 荷兰联合利华有限公司 | Ultrahydrophobic coating composition |
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| CN103360942B (en) * | 2013-06-28 | 2015-10-28 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of super-hydrophobic nano coating and preparation method thereof |
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| CN109609007A (en) * | 2018-11-28 | 2019-04-12 | 浙江大学自贡创新中心 | A kind of preparation method of wear-resisting super hydrophobic coating |
| CN109609008A (en) * | 2018-11-28 | 2019-04-12 | 浙江大学自贡创新中心 | A kind of wear-resisting super hydrophobic coating |
| CN111534184A (en) * | 2020-06-05 | 2020-08-14 | 郑希超 | Anti-fouling environment-friendly emulsion paint and preparation method thereof |
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2006
- 2006-06-02 CN CNB2006100837242A patent/CN100500781C/en not_active Expired - Fee Related
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Application publication date: 20061115 Assignee: Beijing Pu Pu waterproof material Co., Ltd. Assignor: Beijing Shouchuang Nano Techn Co., Ltd. Contract record no.: 2010990000198 Denomination of invention: Nano composite top facing paint with hydrophobic foul resisting sticking-proof and preparation process thereof Granted publication date: 20090617 License type: Exclusive License Record date: 20100412 |
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