PVC & PTFE Material Comparison
PVC & PTFE Material Comparison

PVC & PTFE Material Comparison

Политетрафторэтилен (ПТФЭ) is a synthetic material accidentally invented in the late 1930s while a chemist was endeavoring to develop a new type of perfluorethylene-based refrigerant. Rather than achieving a chlorofluorocarbon, the scientist was surprised to find that the perfluorethylene used in the process reacted with the iron content of its container and polymerized it under pressure. Less than a decade later, this new material was being distributed on a commercial scale and was eventually patented under the name Teflon®. It would be another 20 years before this material would hit the frying pan and become known as the first non-stick coating for cookware, however. In fact, this material was used for a variety of other purposes at first.

Property NameUnits  ABS/PVC Alloy   PTFE Filled
Specific Heat CapacityBTU/lb-°F0.382
Shear Modulusksi
Compressive Yield Strengthpsi30505710
Poisson’s Ratio
Dielectric Constant3.33.7
Dielectric StrengthkV/in508467
Elongation at Break%1009.4
Flexural Yield Strengthpsi70309820
Modulus of Elasticityksi319348
Hardness, Rockwell R88110
Tensile Strength, Ultimatepsi40306580
Tensile Strength, Yieldpsi54208270
Electrical Resistivityohm-cm1.00e+143.00e+15
Densitylb/in³0.04230.0531
Max Service Temperature, Air°F170212
Thermal ConductivityBTU-in/hr-ft²-°F1.871.67
Fracture Toughnessksi-in½

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