METHOD FOR PRODUCING A THREE-LAYER COMPOSITE MATERIAL BASED ON ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE, RUBBER AND METAL Russian patent published in 2023 - IPC B32B15/06 B32B15/85 

FIELD: polymers.

SUBSTANCE: invention relates to polymer materials science with increased resistance to bending, abrasion, aggressive environments and can be used in the mining, automotive and bridge-building industries as structural and functional products operating under high loads. The use of this invention allows to expand the application and improve the quality of polymer products used in the mining and construction industries. A method for producing a three-layer composite material based on ultra-high molecular weight polyethylene, rubber compound and metal is described, moreover, a rubber compound based on isoprene rubber grade SKI-3 is used, characterized in that a surface layer is created based on ultra-high molecular weight polyethylene grade GUR-4022, for which it is preliminarily performed modification of polyethylene by introducing an interlayer adhesive interaction enhancer into the layer, which is used as diphenylguanidine, or captax, or tetramethylthiuram disulfide, at a mass ratio of components, wt.%: ultrahigh molecular weight polyethylene 98.0-99.5; modifier 0.5-2.0, the resulting modified ultra-high molecular weight polyethylene is sent for moulding in a cold press at a pressure of 10±0.3 MPa, where it is pressed for at least 5 minutes, a layer of rubber compound is placed on top of the moulded polyethylene and a base of steel grade 45, pre-treated with a thermosetting adhesive of the Chemosil 411 brand, the formed composite material package is pressed in a hot press at a pressing pressure of 10±0.3 MPa, pressing temperature 150-180°C, the unloading of the pressed product is performed after cooling in the press at a pressure of 10±0.3 MPa upon reaching a temperature of not more than 80°C.

EFFECT: obtaining a three-layer polymer-metal material with increased adhesive interaction between the layers.

1 cl, 1 dwg, 2 tbl