PTFE in Wet and Dry Drilling: Two-Tier Modeling and Optimization through ANFIS

Table 1

Mechanical properties of PTFE material.

Tensile strength (MPa)	Tensile modulus (MPa)	Elongation (%)>	(°C)	Tm (°C)	Water absorption (%)	Water contact angle (°)
14–35	400	200–400	−10	327	0	110