Reinforcing filler, friction polymer composite material and...

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/14 (2006.01) F16D 69/02 (2006.01)

Patent

CA 2250023

The invention relates to the field of friction polymer composite materials, fillers for said materials and articles made from these materials, specifically, friction elements in brake systems and clutch mechanisms in vehicles and industrial equipment used in various technical fields. In essence the invention lies in the following: a reinforcing filler in the form of a knitted fabric is used to produce a friction polymer composite material; the knitted fabric is formed from a complex fibre made of glass, basalt and copper fibres or from glass and basalt fibres or from basalt and copper fibres. Also disclosed as part of the invention are the proportions by volume of basalt, glass and copper fibres in the knitted fabric and relative proportions by weight of the reinforcing filler and polymer material. The use of a lining made from the claimed friction polymer material is proposed for producing friction elements for vehicle brake systems.

L'invention relève du domaine des matériaux polymères composites de friction, des charges pour ces matériaux et des produits en ceux-ci, notamment des corps de friction des freins et des embrayages des véhicules ainsi que ceux d'équipements industriels utilisés dans plusieurs domaines techniques. L'invention consiste à utiliser pour la fabrication du matériau polymère composite de friction une charge de renforcement faite en tissu à mailles tricoté en fil complexe formé d'un fil de verre, d'un fil de basalte et d'un fil de cuivre, ou d'un fil de verre et d'un fil de basalte, ou encore d'un fil de basalte et d'un fil de cuivre. L'invention indique également le rapport volumétrique des fils de basalte, de verre et de cuivre dans le tissu à mailles ainsi que la proportion pondérale de la charge de renforcement et du matériau polymère. Les plaquettes faites en matériau polymère de friction déclaré par la présente invention sont proposées pour la fabrication des corps de friction des dispositifs de freinage des véhicules.

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