Tribological performance of the blend PBT and short aramid fibers

• Main Authors: Mihail BOTAN, Igor ROMAN, Constantin GEORGESCU, Alina CANTARAGIU, Lorena DELEANU
• Format: Article
• Language: English
• Published: National Institute for Aerospace Research “Elie Carafoli” - INCAS 2015-03-01
• Series: INCAS Bulletin
• Subjects: composites; temperature survey; Polybutylene terephthalate (PBT); short aramid fiber; friction; wear; dry regime.
• Online Access: http://bulletin.incas.ro/files/botan_m___all_vol_7_iss_1.pdf
• ISSN: 2066-8201; 2247-4528

Polybutylene terephthalate (PBT) and its aramid fiber composite (10 wt.%) were investigated in order to measure their wear and frictional properties under variations of applied load (5 N, 10 N, 15N) and velocity (0.25 m/s, 0.5 m/s and 0.75 m/s), in dry regime. The tribological properties of the composite were evaluated using a block-on-ring tribotester. The worn surface was investigated with a scanning electronic microscope and the authors pointed out particular processes taking place into the superficial layers of the friction couple. During the tests, temperature was measured by an infrared camera near to the contact of bodies that are involved and the friction coefficient was monitored by the help of the tribometer UMT-2 (Brucker-CETR®).