Polymer-based self-lubricating material

• Published in: Journal of applied polymer science Vol. 80; no. 9; pp. 1514 - 1519
• Main Authors: Shiao, Shin Jen, Fu, Wei Shung, Tuo, Chin Lin, Cheng, Un I
• Format: Journal Article
• Language: English
• Published: New York John Wiley & Sons, Inc 31.05.2001; Wiley
• Subjects: Applied sciences; bush type; Composites; Exact sciences and technology; Forms of application and semi-finished materials; friction coefficient; inorganic powder reinforcement; oilless bearing; polyethylene; Polymer industry, paints, wood; Technology of polymers; titanate coating; Polyoxymethylene; Concentration effect; Graphite; Glass; Friction coefficient; Dispersion reinforced material; Experimental study; Self lubricating material; Sliding friction; Composite material; Property formulation relationship; Tribology
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.1242

A low‐friction coefficient material with color based on proper selection of polar conditions of pigment and liquid lubricant was developed. Bush‐type bearings were made from poly oxymethylene reinforced with inorganic fillers, including polar compounds of white carbon and glass powder, and nonpolar compounds of carbon black and graphite. The fillers were coated with different levels of titanate, and with polar lubricants such as cetyl alcohol and palmitic acid, and nonpolar lubricants of motor oil, and paraffin. The frictional properties at constant velocity and at constant loading, and the relationships between materials polarity are discussed. An excellent self‐lubricating material of frictional coefficient less than 0.02 was obtained. That is superior to the most current commercial products claiming μ = 0.05 ∼ 0.06. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 1514–1519, 2001