Electrically conductive polyethylene resin composition, electrically conductive polyethylene resin molding, sliding bearing, and sliding sheet

摘要

The present invention provides an electrically conductive polyethylene resin composition having a stable volume resistance value and in addition, a low-friction property and a wear-resistant property and a resin molding, a sliding bearing, and a sliding sheet made of the electrically conductive polyethylene resin composition. The electrically conductive polyethylene resin composition contains 100 parts by weight of ultra-high-molecular-weight polyethylene resin which cannot be injection-molded and has a weight average molecular weight of one million to four millions, 2 to 15 parts by weight of Ketjenblack, and 0.5 to 5 parts by weight of at least one powder, having an average particle size of 1 to 30 μm, which is selected from among polytetrafluoroethylene resin powder, graphite powder, and silicone resin powder.

主权项

1. An electrically conductive polyethylene resin molding formed by compression-molding an electrically conductive polyethylene resin composition,
wherein said electrically conductive polyethylene resin composition comprises 100 parts by weight of ultra-high-molecular-weight polyethylene resin which cannot be injection-molded, 2 to 15 parts by weight of electrically conductive carbon, and 0.5 to 5 parts by weight of at least one powder selected from among polytetrafluoroethylene resin powder, graphite powder, and silicone resin powder, and particles of said ultra-high molecular weight polyethylene resin which cannot be injection-molded are unspherical, and said electrically conductive carbon and said powders are disposed at grain boundaries of said particles of said ultra-high-molecular-weight polyethylene resin which cannot be injection molded and are unspherical.