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Microstructure, thermal, physico–mechanical and tribological characteristics of molybdenum disulphide‐filled polyamide 66/carbon black composites
Author(s) -
Basavaraj E.,
Ramaraj B.,
Lee JoongHee
Publication year - 2013
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23428
Subject(s) - materials science , composite material , tribology , ultimate tensile strength , polyamide , microstructure , composite number , molybdenum , metallurgy
With an objective to investigate the influence of molybdenum disulphide (MoS 2 ) on physico–mechanical and tribological properties of polyamide 66 (PA 66), was compounded with MoS 2 in the presence of carbon black (CB). The compounded material was injection molded to make test specimens to evaluate physico–mechanical, thermal, and tribological (wear, friction, and laser etching) characteristics. It was found that tensile strength, percentage elongation at break, and tensile modulus of PA 66/CB/MoS 2 composite increased linearly with increase in MoS 2 content. The impact strength of the PA 66 matrix increased from 37.2 to 43.2 J/m with an increase in MoS 2 content. The wear behavior of PA 66/CB/MoS 2 composites have been investigated under dry sliding conditions at different normal loads, sliding distances, and sliding velocities at room temperature. It was found that the introduction of MoS 2 in the presence of CB has certainly reduced the friction, wear behavior of PA 66 with improvement in laser etching resistance. MoS 2 could increase the adhesion between the transfer film and the counterface surface. The ability of the synergistic fillers in helping the formation of thin, uniform, and continuous transfer film would contribute to enhance the wear resistance of PA 66 composites. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers