Teflon is a brand name of DuPont. This name is applied to a variety of the polymers formally known as polytetrafluoroethylene (PTFE), which belongs to the thermoplastics class of polymers.
The most common filled grades and its resulting enhanced mechanical properties are:
Glass Fiber: Added in various amounts (5% to 40%), increases compressive strength, rigidity and wear; reduces creep and cold flow; minimal effect on chemical and electrical properties.
Carbon: Added in various amounts (10% to 35%), increases compressive strength, hardness, wear, and load properties; good chemical resistance; various types and amounts of carbon can be added to alter conductivity.
Graphite : Added in various amounts (5% to 15%), reduces coefficient of friction; reduces initial wear; increases strength.
Molybdenum Disulfide (MoS2): Added in various amounts (5% to 15%), increases hardness, stiffness, and wear; minimal effect on chemical and electrical properties.
Metal (Bronze): Best wear properties, remarkable deformation strengths and good thermal conductivity.
Mineral: Mica added in various amounts (5% to 10%), provides excellent wear and stability in addition to FDA compliance.
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