METHOD OF METALLIZATION FLAT MATERIALS Russian patent published in 2013 - IPC D06M10/06 D06M11/83 D06M23/00 D06M23/16 

FIELD: textiles, paper.

SUBSTANCE: method of metallisation woven materials lies in melting of metal wires with electric influence, as well as in spraying of microparticles of molten metal to the plane of the material moving orthogonally to the direction of the spraying with the given speed of feeding and protected with the medium of spray distribution from the damaging effect of high temperatures. The explosive melting of the wire substance is carried out through high-voltage electric influence between the ends of the non-open wire delivered discretely to the metalliser in aqueous medium, and a cloud of ionised particles of evaporated metal is formed, and metallisation is performed by energy cumulation of thermal explosion W and electromagnetic focusing of motion trajectories of the ionised particles to the target rate of metallisation, and the rate of feeding F_n of the process material is regulated in time with a spacing frequency n_sp of electric influence, and the volume V_w of the exploded wire is changed, as well as the spraying propagation medium, the voltage U_co and the spacing frequency n_sp of electric influence formed by a bit relaxation circuit L_c-C_t, and the metallisation indices are set and controlled during metallisation according to the value of the scattering coefficient K_s of electromagnetic radiation, characterised by the formula: where: U_co is a voltage of electric influence exploding the wire; ε_m,ε_"ш" is dielectric capacitance of the fabric material and metal particles, respectively; α is lateral dimensions of the particles; W is energy released under electric explosion of the wire, of the given volume V_w; Z_ac is acoustic impedance of the discharge circuit forming the spacing frequency n_sp of electric influence; ρ_m,χ_w,λ_f,λ_vap is density, specific electrical conductivity, heat of fusion and heat of vaporisation of the wire material in a given environment; L_c is the circuit inductance; C_t is capacity of tank of capacitors; T=t_spT_s⇔V_wK_{l emf} is the number of explosions of the wire in processing of area of fabric with volume V_fab necessary to ensure the given index of metallisation with guaranteed by experimentally proved dependence of metal amount introduced into the fabric on the volume of the exploded wire V_w taking into account for adjustment for the loss coefficient K_{l emf} at electromagnetic focusing of motion trajectories of the ionized particles; T_s is the sampling period of time of feeding the section of plane of metallised surface; d is thickness of the fabric; λ is wavelength of the electromagnetic radiation in a vacuum; and the value of the metallisation index K_p is set and controlled using a physical phenomenon of scattering of electromagnetic waves in the infrared range, and the voltage of electric influence Uco exploding wire with length of 40 mm and a diameter of 0.6 to 1 mm is adjusted from 2 to 4 kV with values of capacity of tank of capacitors C_t of 150 to 200 microfarad and values of the discharge circuit inductance L_c of 30 to 40 mcH, ensuring minimum loss of metal from 30% to 40% with an electromagnetic focusing of motion trajectories of the ionised particles.

EFFECT: technology is feasible in any media, including, liquids, the cloths have shielding properties, and antibacterial, antiviral, catalytic activity.

1 cl, 6 tbl, 6 dwg