Influence of the Addition of Nano-porous Graphite/Parafffin Additive on the Wear Properties of Phenol-Formaldehyde Resin Composites |
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| Authors: | Jinlong Tan Lei Hua Jun Chen Jichun Liu Yongzhen Zhang |
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| Institution: | 1. Key Laboratory of Polymer Science and Nano Technology, Henan University of Science and Technology, Luoyang, PR China;2. Henan Key Laboratory of Tribology, Henan University of Science and Technology, Luoyang, PR China |
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| Abstract: | Phenol-formaldehyde resin (PF) composites with a nano-porous graphite additive (NPGA) in various contents were fabricated and the wear behaviors under low and high sliding speeds were studied. The addition of NPGA significantly improved the wear resistance of the PF. The specific wear rates of PF composites under low sliding speed first decreased with increasing NPGA and then slightly increased when the NPGA content surpassed 15?wt%; the specific wear rate of the composite with 15?wt% NPGA was reduced by 77% compared with the neat PF. Under high sliding speed the specific wear rates of the composite material decreased continuously with increasing NPGA content and the maximum wear resistance of the composite with 20?wt% NPGA was more than 12 times that of the neat phenolic resin. The results are attributed to the combined effects of load-capacity and the lubrication role of the included NPGA. The surface morphology of the worn surface was characterized, and the wear mechanism for the composites is discussed. |
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| Keywords: | Wear resistance phenol-formaldehyde resin nano-porous graphite lubricant |
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