SUCCESSFUL REALIZATION OF NANOTECHNOLOGIES
ORPE "Technologiya" is engaged in research on nanomaterials and nanotechnologies. Nanotechnologies cause a revolutionary change in methods of development and manufacture of structural and special-purpose materials.
The modification of binder through the introduction of nanotubes and nanoparticles makes it possible not only to improve by 20-30% the mechanical properties of carbon fiber-reinforced plastics (CFRP) used in the production of large-sized structures for aerospace equipment but also to decrease significantly the spread in properties without changing the methods of component molding.
Modern Russian and foreign carbon PAN (polyacrylonitrile)-fibers are introduced into production of aerospace structures from polymeric composite materials. Radically new methods of impregnation of unidirectional prepregs based on foreign carbon fibers and Russian modified binders are being developed. Solution, melt and glue binders based on Russian and foreign chemical components are being elaborated.
Modification of epoxy matrix through the use of nanoparticles and carbon nanotubes
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Field of research:
- choice of nanoparticles,
- choice of optimum additives,
- development of efficient technologies for the introduction of nanoparticles,
- investigation of physical and mechanical properties of modified composite materials.
Anticipated results:
- increase of CFRP strength and elastic modulus along the fibers by 25-40%,
- decrease in CFRP strength variation by half,
- increase of composite material crack resistance,
- decrease of epoxy matrix CTE (CTE-coefficient of linear thermal expansion),
- increase of glass-transition temperature by 20%.
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Compression strength of carbon fiber-reinforced plastic KMU-4 (MPa)
Spread in KMU-4 properties in compression tests (%) |
 The production base has been built up at ORPE "Technologiya" and crucially new methods of manufacture of large-sized complex-shaped organic glazing for aircraft and helicopters have been developed.
Industrial methods of applying multifunctional nano-sized coatings and organosilicate varnishes to aircraft glazing from organic glass make it possible to protect pilot personnel from electromagnetic and solar radiation and simultaneously to increase abrasion, microcracking and moisture resistance.
These innovations will allow ORPE "Technologiya" to meet the increased requirements imposed on new aircraft MiG-29K, Su-35 and Su-30MKI delivered to foreign countries.
 The investigations are being carried out on the development of a new class of structural materials - ceramic matrix composite materials.
Ceramic heat-resistant structures for aircraft gas-turbine engines and nanopowders-based materials for solid electrolytes, friction pairs, precision components of optical fiber communication lines are being developed. |
