BASALT-FLUOROPLASTIC COMPOSITE MATERIAL FOR TRIBOTECHNICAL PURPOSES Russian patent published in 2015 - IPC C08K7/02 C08L27/18 C08J5/16 

FIELD: chemistry.

SUBSTANCE: invention relates to polymer composite materials for tribotechnical purposes and can be used to make friction bearings, end seals and other friction assembly materials. The composite material is made of a modified polymer composition based on polytetrafluoroethylene using mechanically activated basalt fibre. Basalt fibre filler is first crushed using a Fritsch Pulverizette 15 cutting mill with a 0.25 mm sieve. The length of the crushed (chopped) fibres is 30-90 mcm and the diameter is 8-10 mcm. The chopped basalt fibre is mechanically activated in an AGO-2 planetary mill for 2 min. After mechanical activation, the average length of the fibres does not change significantly, but the diameter is reduced 1.5-2 times.

EFFECT: invention enables to obtain polymer composite materials with improved tribotechnical properties without complex operations and can be used to produce materials with improved tribotechnical properties without deterioration of physical and mechanical properties.

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