LIGHT HIGH-STRENGTH WATERPROOF COMPOSITE MATERIAL AND METHOD OF ITS MANUFACTURE Russian patent published in 2017 - IPC C08L63/00 D01F11/06 C08J3/28 C08J5/24 

FIELD: chemistry.

SUBSTANCE: invention relates to the field of lightweight high-strength and water-resistant composite materials (CM) based on organic fibrous fillers made of ultra-high molecular weight polyethylene (UHMWPE) and a polymer binder and can be used in structural elements in various fields of engineering: aviation, machinery and shipbuilding, chemical, defence, etc. A lightweight, high-strength, water-resistant composite material made of an organic fiber filler based on high-strength, high-modulus, multifilament polyethylene fibers whose surface has been pretreated is modified by an electric discharge in a working plasma gas environment containing a polymeric binder based on an epoxy resin with an amine hardener in which, as an organic filler It contains fabrics of various interlacing on the basis of fibers from ultrahigh, the surface of which has been pretreated - modified in an AC discharge at a frequency of 50 Hz, as an epoxy resin of a polymeric binder contains a mixture of epoxydian (A) and epoxyaliphatic (B) oligomers in the ratio A: B from 10:1.5 to 10:2.5, as the amine curative is a cycloaliphatic amine, and further comprises a polyamide resin, which is a reaction product of polyamines with vegetable oil acids, a mixture of oligoethercarbonates, a fluoropolymer urethane, a silane type nanomodifier with the ratio of components, wt. parts: the above-mentioned organic fiber filler is 150-600, the epoxy-diene oligomer (A) is 100, the epoxy-aliphatic oligomer (B) is 15-25, the silicone-type nanomodifier is 0.05-0.65, the mixture of oligoethercarbonate is 13-33, the urethane prepolymer - 3-12, cycloaliphatic amine - 12-30, the above-mentioned polyamide resin - 6-17. A method for manufacturing a light high-strength and water-resistant composite material is also described.

EFFECT: light high-strength waterproof composite with improved physicomechanical properties and water resistance of CM with an ecological purity and technological simplicity of the process is obtained.

7 cl, 3 dwg, 2 tbl