Apparatus and method for producing coatings reinforced with alumina nanofibers
a technology of alumina nanofibers and apparatus, applied in the field of nanotechnology, can solve the problems of low production output of nanoparticles for use in nanocoatings, high cost and time consumption, and the cost of electrospinning process is rather high, resource and time-consuming,
Inactive Publication Date: 2014-09-04
ANF TECH
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Benefits of technology
This approach increases production efficiency, reduces costs, and enhances the mechanical, thermal, and optical properties of the nanocoatings, while avoiding high-temperature processes that can damage substrates.
Problems solved by technology
However, the conventional methods for fabrication of nanoparticles for use in nanocoatings suffer from low production output and, consequently, are expensive and time consuming.
As would be appreciated by those of skill in the art, these features make the electrospinning process rather expensive as well as resource and time-consuming.
The other conventional nanofiber fabrication methods suffer from similar drawbacks and production bottlenecks, which reduce their throughput.
In addition, the conventional nanofiber fabrication techniques such as the aforesaid electrospinning process are not suitable for manufacturing metal oxide nanofibers.
In addition, conventional techniques for producing thin film coatings are also deficient.
However, the high temperatures needed for plasma deposition may damage the substrate.
In addition, the plasma deposition method is energy consuming, slow and expensive.
Method used
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[0121]In the following detailed description, reference will be made to the accompanying drawing(s), in which identical functional elements are designated with like numerals. The aforementioned accompanying drawings show by way of illustration, and not by way of limitation, specific embodiments and implementations consistent with principles of the present invention. These implementations are described in sufficient detail to enable those skilled in the art to practice the invention and it is to be understood that other implementations may be utilized and that structural changes and / or substitutions of various elements may be made without departing from the scope and spirit of present invention. The following detailed description is, therefore, not to be construed in a limited sense.
[0122]In accordance with one aspect of the invention, there is provided a method and apparatus for producing coatings reinforced by alumina nanofibers. In accordance with one or more embodiments of the inv...
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Abstract
A method for producing a nanocoating reinforced by alumina Al2O3 nanofibers involving synthesizing the alumina Al2O3 nanofibers directly from a melt comprising molten metallic aluminum, the method comprising a controlled liquid phase oxidation of the melt, wherein the synthesized alumina Al2O3 nanofibers have a diameter between 3 and 45 nm and length of more than 100 nm and combining the synthesized alumina Al2O3 nanofibers with a polymer matrix to produce the nanocoating material reinforced by the alumina Al2O3 nanofibers. The nanocoating is then applied onto a surface of a substrate using any known coating technique, such as by means of a roll coater. The alumina Al2O3 nanofibers may be monocrystalline alumina Al2O3 nanofibers. The alumina Al2O3 nanofibers and the molecules of the polymer may be aligned.
Description
BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates in general to nano technology and, more specifically, to technology for producing coatings reinforced with alumina Al2O3 nanofibers.[0003]2. Description of the Related Art[0004]Nanotechnology deals with developing materials, devices, or other structures having at least one dimension sized between 1 and 100 nanometers. Nanoparticles are the particles having at least one dimension sized between 1 and 100 nanometers. On the other hand, nanofibers are defined as fibers with diameters less than 1000 nanometers. Nanofibers are widely used for manufacturing coatings (nanocoatings) having enhanced properties, such as coatings consisting of polymers reinforced by nanoparticles.[0005]At the present time, several kinds of nanoparticles which can be used in the production of nanocoatings are known in the art, including, without limitation, carbon nano tubes (CNT), nano powders produced from silicon carbide, a...
Claims
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IPC IPC(8): C08K3/22C08K3/08
CPCC08K3/08C08K3/22C08K7/08C08K2003/2227C08K2201/011C09D5/00C09D7/61C09D7/70
InventorGRODNENSKY, ILYA
OwnerANF TECH