The application prospect of nanomaterials in ship coatings

China Coatings Network
: Nanomaterials in the field of naval ship equipment has a lot of application space, ship
coating
is one of the important application direction.
I, stealth coating
a very important role of the ship coating is as part of the ship stealth material, the special effects of nanomaterials for stealth materials to provide new ways and new absorption of wave absorption. According to research, nano-multi-layer composite film (including multi-layer particle film, inorganic/organic multi-layer composite film, metal/dielectric multi-layer composite film, etc.) is expected to become a new material for the preparation of high-intensity and wide-wave absorption with a certain frequency. A U.S. company will use an ultra-fine ceramic ball powder in a protective coating that provides the equipment's stealth capabilities and can be applied to electronic devices to counter electronic interference. The absorption rate of radar waves can reach 99%, and the thickness is only micron scale.the composite powder of
nano-alumina, iron oxide, silicon oxide and titanium oxide combined with polymer fibers has a strong absorption performance in the medium-infrared light band, and this composite has a good shielding effect on the infrared detector of the band. Adding this kind of material to the coating not only has the characteristic of absorbing radar wave, but also has the good absorption and dissipation infrared performance, and has obvious stealth function.
technology of submarine camouflage coatings is the wet reflectivity and aging resistance of the coatings. The application of nanoscale dark pigments, such as carbon black, iron black and other dark pigments, may be one of the effective ways to reduce wet reflectivity and aging resistance of camouflage coatings.
ii, hull paint and anti-fouling paint on the bottom of the ship
nometer silica is a non-stereotyped white powder, the surface state is a three-dimensional mesh structure. With strong ultraviolet absorption, infrared light reflection characteristics, can improve the anti-aging properties of the coating. Nano-titanium dioxide also has the effect of absorbing ultraviolet light, which can improve the aging resistance of coatings. They can all be used as major additives to the development of ultra-weather-resistant hull paints.
Ship anti-fouling coatings have always been
ship coatings
in the performance of the most special, research technology is one of the most difficult materials, due to the increasing attention to environmental protection requirements around the world, in the total prohibition of the use of organic tin anti-fouling agents has been determined the time, the development of new and efficient anti-fouling agents has become the focus of researchers in various countries
ship paint
The use of nano-scale anti-fouling agents, such as nano-copper oxide, nano-zinc oxide, etc. may be an effective way, or the use of microcapsules technology, with a water-soluble resin material nano-anti-fouling agent fine powder coating to form particles, and then prepared in the coating, in practical applications, due to the role of seawater so that microcapsules gradually dissolve, slowly and effectively release anti-fouling agents to achieve a stable long-lasting anti-fouling function.
, antibacterial coatings
nomethic titanium dioxide, nano-zinc oxide and other nanomaterials can be used as non-toxic to the human body, antibacterial range, excellent thermal stability antibacterial agent. Non-metallic materials and coatings used in ship compartments are highly susceptible to mold and contamination due to their frequent wet and small space-prone environments, particularly in subtropical and tropical marine environments. The antibacterial effect of nanomaterials can be used to prepare new high-efficiency anti-mold materials and coatings in the cabin.
, ship flame retardant coatings
the fire resistance of ships is related to ship safety, especially directly affect the ship's combat effectiveness and survivability of the key factors. Some nanoparticles have flame retardant functions, such as nano-zinc oxide can be added as flame retardant to the interior decoration materials of the ship's cabin or made into flame retardant coatings, improving the fire resistance of the ship's non-metallic decorative materials and flame retardant coatings.