MULTILAYER COMBINED MATERIAL POLYMER-COMPOSITE AND METHOD OF ITS MANUFACTURE Russian patent published in 2017 - IPC B32B17/10 B32B27/32 B32B27/30 C08J7/12 C08J5/12 

FIELD: technological processes.

SUBSTANCE: method includes plasma-chemical treatment of the polymer material surface in the region of negative glow of an abnormal glow discharge of a low-temperature plasma with a plasma-forming gas temperature of not more than 50°C under the reduced pressure, forming a layer of composite material on one or both surfaces of the polymer material. As a polymer layer, polyethylene, polypropylene, fluoroplastic, or polyvinyl chloride are used. The composite material is formed by successive laying of the fibreglass layers, applying a binder resin to each layer of fibreglass . Plasma-chemical treatment of the polymer material surface is carried out for 1 minute at a pressure of 13 Pa in the region of negative glow of an abnormal glow discharge of a low-temperature plasma, the plasma-forming gas is changed at a flow rate of 50 ml/min. The current density of a glowing abnormal discharge is 0.5 mA/cm², or plasma-chemical treatment of the polymeric material surface is carried out for 5 minutes at a pressure of 13 Pa in the region of negative glow of an abnormal glow discharge of a low-temperature plasma, the plasma-forming gas is changed at a flow rate of 10 ml/min, while the current density of a glowing abnormal discharge is 0.1 mA/cm².

EFFECT: invention provides for the creation of a material with an increased mechanical strength sufficient to operate under conditions of high mechanical loads, cryogenic high temperatures, in accordance with the selected materials of the polymer and composite layers.

4 cl, 2 dwg, 2 tbl