摘要:
The invention is directed to a drive belt of rubber or rubber-like plastic having a surface protection (5) which includes polyamide-containing textile reinforcement and/or polyester-containing textile reinforcement. On the outer side, a surface coating (6) of a friction-reducing material in a matrix of at least one elastic addition polymer is provided. For improved heat resistance with good protection against wear, the elastic addition polymer has at least 2% by weight based on the polymer of structural components —O—CxRy—O— with x=1-3 and y=0-6. The R in a structural component can be the same or can be different and is selected from hydrogen and/or carbon-containing groups.
摘要:
A drive belt has a foundational body made of a polymeric material with elastic properties including a top ply as belt backing and a substructure having a force transmission zone. At least one tensile strand in cord construction is embedded in the drive belt. The tensile strand is completely or partially made of a polyethylene terephthalate (PET), wherein the PET is formed of a yarn associated with the following yarn and cord parameters: a cord linear density of ≦3600 dtex; a yarn hot air thermal shrinkage ≦5% after 2 minutes at 177° C. and at a pre-tension of 0.0005 N/dtex; a corresponding yarn force of ≧3.4 cN/dtex at an elongation of 5% at 25° C. and at a pretension of 0.0005 N/dtex; and a cord hot air thermal shrinking force of ≧0.12 cN/dtex in hot air at 160° C. after 10 minutes and at a pre-tension of 0.0005 N/dtex.