High-slip lubricating plastic material: fluororesin.
What makes fluoropolymer, particularly PTFE, excellent in terms of sliding properties among plastics? We will introduce its characteristics, focusing on the lubricity and low friction of fluoropolymer PTFE.
■Types of Lubrication Lubrication can be broadly divided into liquid lubrication using liquids and solid lubrication using solids. A representative example of liquid lubrication is lubrication with oil. On the other hand, lubrication with fluororesin falls under the category of solid lubrication. ■Characteristics of Solid Lubrication Solid lubrication is used in cases where liquids cannot be used or when liquids may evaporate or detach in a vacuum. For example, when sliding products, solid lubrication is helpful in situations where liquid lubricants may dirty the products. ■Low Friction and Sliding Properties of Fluororesin (PTFE) Fluororesin has a low coefficient of friction and is utilized for solid lubrication. PTFE is structured such that fluorine atoms surround carbon atoms without gaps. The free energy of the fluorine atoms on the molecular surface is low, and the molecule has a very small polarity in its target structure. The low coefficient of friction of PTFE is believed to be influenced by this type of molecular structure. ■Reasons for the Low Coefficient of Friction of Fluororesin PTFE → Please check the basic information section for more details.
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