eFunda Polymers: Properties of Fluoroplastics {PE-CTFE}

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Fluoroplastics	List of Suppliers

Additives:

PE-CTFE

Material Properties

Mechanical Properties		Conditions
Mechanical Properties		State 1	State 2	ASTM
Elastic Modulus (MPa)	1656	tensile		D638
Flexural Modulus (MPa)	1656	23 ºC		D790
Tensile Strength (MPa)	42 - 49	at break		D638
Tensile Strength (MPa)	32 - 34	at yield		D638
Flexural Strength (MPa) at yield or break	49			D790
Elongation at break (%)	200 - 300			D638
Hardness	93 - 95	Rockwell R		D638
Hardness	75	Shore D		D638
Izod Impact (J/cm of notch) 1/8" thick specimen unless noted	no break			D256A

Thermal Properties Conditions

Pressure State ASTM

Coef of Thermal Expansion (10^-6/ºC) 80 D696

Deflection Temperature (ºC) 116 0.46 MPa D648

77 1.82 MPa D648

Thermal Conductivity (W/m-ºC) 0.159 C177

Physical & Electrical Properties Conditions

State ASTM

Specific Gravity 1.68 - 1.69 D792

Water Absorption (% weight increase) 0.01 after 24 hrs D570

Dielectric Strength (V/mil);
1/8" thick specimen unless noted 490 - 520 D149

Processing Properties Conditions

Type ASTM

Melting Temperature (ºC) 220 - 245 T_m, crystalline

Processing Temperature (ºC) 260 compression molding

274 - 302 injection molding

260 - 288 extrusion

Molding Pressure (MPa) 35 - 138

Linear Mold Shrinkage (cm/cm) 0.02 - 0.025 D955