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    Home > Coatings News > Paints and Coatings Market > Paint classification: Nano paint

    Paint classification: Nano paint

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    It is suggested that due to the small size effect, the surface effect, the quantum size effect and the macroscopic quantum tunneling effect of nanoparticles, they have the characteristics that conventional materials do not have in the fields of magnetism, light, electricity and sensitivity Therefore, nanoparticles have broad application prospects in magnetic materials, electronic materials, optical materials, sintering of high-density materials, catalysis, sensing, ceramic toughening and so on Generally speaking, nano coating must meet two conditions: first, there is at least one phase with a particle size of 1-100nm in the coating; second, the existence of nano phase makes the coating Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Home of coatings: due to the small size effect, surface effect, quantum size effect and macro quantum tunneling effect of nano particles, they present the characteristics that conventional materials do not have in the fields of magnetism, light, electricity and sensitivity Therefore, nanoparticles have broad application prospects in magnetic materials, electronic materials, optical materials, sintering of high-density materials, catalysis, sensing, ceramic toughening and so on Generally speaking, nano coatings must meet two conditions: first, there is at least one phase in the coating with a particle size range of 1-100nm; second, the existence of nano phase makes the performance of coatings have obvious improvement or new functions Definition After the nano products have the meaning of high technology, they must be matched with the corresponding nano technology After the nano materials are simply added, the products whose performance has not been significantly improved are not nano products It is said that it is more appropriate to call the nano coating as the nano composite coating, and the coating itself is a kind of composite material Therefore, it is not the coating added with nano materials It can be called nano coating In foreign countries, many coating products use nanotechnology, but for the sake of technical confidentiality, it is not directly called Green exhibition will not only show the "tasteless" paint, show the advanced technology of non-toxic paint, but also show the nano paint with high technology content This high-tech nano coating is not only non-toxic and harmless, but also can slowly release a substance, degrade indoor formaldehyde, xylene and other harmful substances Coating performance nano materials have special properties such as surface effect, small size effect, optical effect, quantum size effect and macro quantum size effect, which can make coatings obtain new functions For example: when the particle size enters the nanometer scale, the increase of the surface active center of the material can improve its chemical catalysis and photocatalysis reaction ability, and give the coating self-cleaning ability under the action of ultraviolet and oxygen; the surface active center and the functional group of the film-forming material can have the sub chemical bond, which greatly increases the rigidity and strength of the coating, so as to improve the scratch resistance of the coating; high surface energy The hydrophobic and oil repellent properties can be obtained by modifying the surface of nano materials, which can be used for internal and external walls The coating can significantly improve the antifouling property and weather resistance of the coating; some nano materials with particle size less than 100nm can absorb and scatter y-rays, improve the radiation resistance of the coating, and play the role of radon prevention in the interior and exterior wall coatings; the nano materials used in the primer can increase the adhesion between the primer and the substrate, and improve the mechanical properties Nano scale pigment with high strength With the strong force and filling effect of primer, it helps to improve the interface combination of primer and coating; nano materials can play the role of surface filling and finishing in the finish, improve the gloss of the finish, reduce resistance; nano silica can be added to the exterior wall coating to improve the scrub resistance of the coating; nano titanium dioxide can be added to the exterior wall coating to improve the emulsion paint At the same time, the anti-aging performance of latex paint is greatly improved; nano zinc oxide added to the exterior wall paint can make the coating have the function of shielding ultraviolet, absorbing infrared, sterilization and anti-virus The particle size of nano composite coating is far smaller than the wavelength of visible light of 400-750nm, which has the function of transmission, thus ensuring the high transparency of nano composite coating Nano particles have strong absorption effect on UV TiO2, SiO2 and other nano particles are added to the exterior wall building coating to improve the weather resistance, and TiO2 is added to the automobile finish to improve the aging resistance of the automobile coating The results show that nano silica can reduce the absorption of UV radiation and the curing speed of UV curable coatings, but can significantly improve the hardness and adhesion of UV curable coatings Due to the very small size of nano ultrafine powder, the absorbing nano composite coating has the ability of absorbing electromagnetic wave They have a strong absorption effect on radar wave and infrared ray of different wavelengths Therefore, the coating modified by nanoparticles can be used in military stealth coating The U.S once reported a kind of "super" blackbody nano absorbing material, that is, ultra-fine graphite nano absorbing coating, which can absorb 99% of the radar wave The military camouflage coating has been successfully prepared with nano carbonyl iron powder, nickel powder and ferrite powder in foreign countries, which has been applied to aircraft, warships, missiles, submarines and other weapons and equipment, making them have the camouflage performance Nano coating materials have the advantages of wide absorption band, light weight and thin thickness, which are expected to play an important role in military stealth in the future The irradiation of the nano self-cleaning antibacterial coating with a new type of nano absorbing coating in the air inlet can cause the super amphiphilicity of hydrophilic and lipophilic two-phase coexistence on the surface of TiO2 in the nano area For example, the nano antibacterial powder which has been industrialized in China can be used in coatings to produce nano bactericidal coatings, which can be applied to building materials products, such as sanitary ware, indoor space, appliances, walls and floors of hospital operating rooms and wards, and play a role in sterilization and cleaning Under the light with wavelength less than 400nm, nano-TiO2 particles can absorb the short wave light radiation which is higher than the band gap width, generate the electron transition, make the valence band electrons excited to the conduction band, and form the electron hole pair, transfer the energy to the surrounding medium, induce the photochemical reaction, thus have the photocatalysis performance Nano coating production equipment the main equipment of nano functional coating production process includes high-speed disperser, sanding machine, paint mixing equipment, filtering equipment and filling equipment [2] 1 The main function of the high-speed disperser is to premix the coating slurry The pigments and fillers in the modern raw materials of coatings are superfine and easy to disperse With the application of the wetting and dispersing machine, many coatings do not need to be ground, and only using the high-speed dispersing machine can reach the specified fineness 2 The grinding machine is also called ball mill Its main function is to grind hard to disperse pigments, fillers and coatings into color paste or to the specified fineness There are two types of grinding machines: horizontal and vertical 3 Paint mixing equipment paint mixing equipment is used to mix the finely ground paint slurry after dispersion with some paint resins, paint auxiliaries, solvents and color pastes, and achieve the specified color, viscosity and other indicators Some coatings also use high-speed disperser for paint mixing 4 There are a small amount of impurities such as coarse slag in the paint prepared by the filtering equipment, which can be purified by using the filtering equipment The commonly used equipment is vibrating screen, which is easy to operate and clean 5 The filling equipment is used to seal the finished product coating with specified volume and quality Manual or automatic paint filling equipment can be used Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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