METHOD FOR OBTAINING POLYMER NANOCOMPOSITE MATERIAL Russian patent published in 2013 - IPC C23C4/10 B22F1/02 B82B3/00 

FIELD: metallurgy.

SUBSTANCE: invention refers to plasma technology, and namely to plasma treatment method of disperse material. It can be used for obtaining coated polymer powder nanocomposite materials. Polymer powder is placed in a discharge chamber with an electrode system, which is then vacuumised. Then, helium mixed with reactant gas is supplied at pressure of 100÷140 Pa to the discharge chamber operating under low vacuum conditions. Pulse arc discharge with discharge current force I equal to 2÷3 kA is created. Pulse duration τ is set in the range of 20÷300 mcs and pulse repetition frequency f is set to 0.5÷1 kHz. At the same time, gas mixture supplied at pressure of 100÷140 Pa is ionised by means of pulse arc discharge, and nanoparticles of oxides, nitrides or carbides of metals are obtained by sputtering the consumed solid electrode. Obtained flow of nanoparticles is deposited to the surface of polymer particles of the powder uniformly mixed in vertical plane so that powder is obtained from polymer particles with the coating representing agglomerated nanoparticles of oxides, nitrides or carbides of metals.

EFFECT: obtained material has high mechanical strength and high elasticity modulus at maintaining high deformability.

1 cl, 1 dwg, 4 tbl