草榴短视频

In "Sirius" participants of the scientific and technological program "Grand Challenges" from Moscow, Rybinsk, Smolensk, Cherepovets and St. Petersburg are working on the creation of a three-layer sandwich composite. Young scientists, specialists of the department of nanostructured, fibrous and composite materials named after A.I. Meos of 草榴短视频 Olga Gladunova and Natalia Lukicheva help them in it.

In the course of work on the project the schoolchildren created samples of three-layer glass-filled sandwich composites with syntactic filler. The realization of the project will allow to approach to the solution of a number of problems: import substitution in shipbuilding, increase of the period of ships' maintenance-free operation and training of profile specialists in the field of composite materials.

Natalia Lukicheva, senior lecturer of the Department of Nanostructured, Fiber and Composite Materials named after A.I. Meos of 草榴短视频, said:

"Composites are promising materials, the development of which is included in a number of critical technologies in our state, because with their help it is possible to create materials with predetermined properties. That is to receive exactly what we, the customer, need. It is possible and necessary to familiarize with composites already from the school bench, thus, probably, we will grow the specialists, which the composite industry lacks so much".

The main task of the project is to develop a new import-substituting composite material so that it could be used for replacement of metal parts and constructions in shipbuilding. Today, most ships are based on metal, which often corrodes. In "Sirius" within the framework of the direction "New Materials" schoolchildren under the guidance of scientists of the University of PromTechDesign conducted an experiment: a metal nail and polymer composite were immersed in sea water. In two days the nail was covered with rust, and the composite bar remained unharmed. The same thing happens to the metal structures of ships. Because of corrosion, their durability is reduced and repairs are required more often. Repair work in shipbuilding is expensive and time-consuming. If metal is replaced by polymer composites, many technical and economic problems can be avoided. We are talking about superstructure elements, doors, hatches, wall panels, decks, which can be made of composite materials with a gas-filled layer inside. The composites themselves are created mainly from domestic materials - epoxy resin and hollow glass microspheres.

In addition to being corrosion-free, composites have a number of other important advantages over metal.

"We want to make and show samples of materials, a mini-model of the ship, which we will make from composites. Their application is relevant for shipbuilding. According to analytical data, every year about 10 percent of metal irretrievably leaks into the ocean due to corrosion, metal parts have welds that additionally create surface defects. And also composites are bioinert, that is mollusks will not stick to the ship and spoil its surface", - tells the participant of the project Alina Gayazova.

At the end of the scientific and technological program "Grand Challenges" the researches of schoolchildren can be finalized and transferred to the department of pilot production of JSC "Mid-Nevsky Shipyard" for estimation of possibility of their further use.

Photo materials provided by the Sirius Educational Center.