PCTFE vs. PHB

Both PCTFE and PHB are thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is PCTFE and the bottom bar is PHB.

Polychlorotrifluoroethylene (PCTFE)Polyhydroxybutyrate (PHB)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		1.4
Elastic (Young's, Tensile) Modulus, GPa		1.3

Elongation at Break, %		150
Elongation at Break, %		7.5

Flexural Strength, MPa		59
Flexural Strength, MPa		20

Tensile Strength: Ultimate (UTS), MPa		36
Tensile Strength: Ultimate (UTS), MPa		30

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C		110
Heat Deflection Temperature At 1.82 MPa (264 psi), °C		60

Maximum Temperature: Mechanical, °C		150
Maximum Temperature: Mechanical, °C		120

Melting Onset (Solidus), °C		220
Melting Onset (Solidus), °C		180

Electrical Properties

Electrical Resistivity Order of Magnitude, 10^x Ω-m		16
Electrical Resistivity Order of Magnitude, 10^x Ω-m		14

Otherwise Unclassified Properties

Density, g/cm³		2.1
Density, g/cm³		1.3

Water Absorption After 24 Hours, %		0.0094
Water Absorption After 24 Hours, %		0.75

Common Calculations

Stiffness to Weight: Axial, points		0.37
Stiffness to Weight: Axial, points		0.58

Stiffness to Weight: Bending, points		17
Stiffness to Weight: Bending, points		29

Strength to Weight: Axial, points		4.6
Strength to Weight: Axial, points		6.7

Strength to Weight: Bending, points		11
Strength to Weight: Bending, points		17