LAUSR

The N-polyamide 6 (N-PA6) was used as a toughening agent to improve the mechanical properties of a thermosetting phenol formaldehyde (PF) resin. Then, molybdenum disulfide (MoS2) and graphite (Gr) were added as friction modifiers to improve the tribological properties of PF resin–N-PA6 composite. In this article, it was found that PF resin with 2 wt% N-PA6 has the best performance in tensile strength (41.9 MPa) and notched Izod impact strength (3.7 kJ/m2). When MoS2 or Gr was added, tensile strength was reduced, while notched Izod impact strength increased at first and then decreased. Wear testing showed that PF resin filled by 2 wt% N-PA6 possessed both low friction coefficient (0.3794) and wear rate (7.88×10−5 mm3/Nm). MoS2 or Gr could be added to further reduce the wear rate and make the friction coefficient more stable. Scanning electron microscope test showed that N-PA6 provides a smoother friction surface.