SHEET LAYERED POLYMER WEAR-RESISTANT COMPOSITE MATERIAL (VERSIONS) Russian patent published in 2016 - IPC B32B27/06 B32B27/42 B82B3/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, specifically to sheet laminar polymer wear-resistant composite materials and can be used in sliding supports for various purposes. Material contains, by pts.wt: fibre filler - 32-64; particulate filler 0.01-9.95; polymeric binder - balance up to 100 pts.wt. Cotton fibre structural layers are used in form of filaments, chopped strands, fabrics, and chopped tissue twill, plain or rep weave, wherein length of chopped strand of cotton fibres is selected from 2 to 42 mm, and area of pieces of cut fabric from cotton fibres is selected 0.4 cm² up to 18 cm². Polymer binder used can be epoxy resin, fibre filler used can be meta-aramid fibre or a mixture of meta-aramid fibre and cotton fibre, with content of meta-aramid fibre and cotton fibre in mixture of 20 to 80 pts.wt, and meta-aramid fibre structural layers are used in form of filaments, chopped strands, fabrics, and chopped tissue twill, plain or rep weave, wherein length of chopped strand of cotton fibers is selected from 2 to 42 mm, and area of pieces of cut fabric from cotton fibre is selected from 0.4 cm² up to 18 cm². Powder filler material is colloidal graphite and/or molybdenum disulphide with particle size from 3 to 10,000 nm with content of molybdenum disulphide in mixture with colloidal graphite from 20 to 80 pts.wt, or polyphenylene sulphide with particle size from 3 to 10,000 nm in amount of 0.01 to 9.95 pts.wt and material has thickness from 0.4 to 120 mm. Technical result is maintaining service life of various parts of tribological purposes due to low linear wear with improvement of resistance of parts made therefrom with friction in aggressive and abrasive operating conditions.

EFFECT: technical result is creation of wear-resistant composite material with low friction coefficient during operation while maintaining stability of friction coefficient and maintaining operational characteristics of wear of composite material at friction at high-strength steel.

8 cl, 4 tbl