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Kynar® 761

Alternative and trade names
PVDF
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Description

Kynar® resins are fluorinated thermoplastic homopolymers.

Outstanding characteristics: chemical resistance, imperviousness to UV, high barrier properties, high purity, good mechanical and thermo-mechanical properties.

This material data has been provided by Arkema Technical Polymers.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValueTesting StandardConditionComment

Coefficient of friction

0.14 [-]

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ASTM D1894

vs Steel, Kinetic

0.2 [-]

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ASTM D1894

vs Steel, Static

Density

1.77 - 1.79 g/cm³

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ASTM D792

Limiting oxygen index

43 %

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ISO 4589-1/-2

dry

44 %

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ASTM D2863

Water absorption

0.01 - 0.03 %

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ASTM D570

0.02 %

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Sim. to ISO 62

Mechanical

PropertyTemperatureValueTesting StandardConditionComment

Compressive strength

68.9 - 103 MPa

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ASTM D695

Elastic modulus

1.4 - 2.3 GPa

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ASTM D638

2 GPa

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ISO 527-1/-2

dry

Elongation

20 - 100 %

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ASTM D638

50 %

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ISO 527-1/-2

dry

min. | nominal

Elongation at yield

5 - 10 %

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ASTM D638

9 %

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ISO 527-1/-2

dry

Flexural modulus

1.4 - 2.3 GPa

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ASTM D790

Flexural strength

58.6 - 75.8 MPa

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ASTM D790

at 5% strain

Hardness, Shore D

76 - 80 [-]

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ASTM D2240

Impact strength, Charpy notched

23 °C

50 kJ/m²

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ISO 179/1eA

dry

Impact strength, Charpy notched, ASTM

23 °C

96.1 - 214 J/m

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ASTM D256

Impact strength, Charpy unnotched, ASTM

23 °C

1070 - 4270 J/m

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ASTM D256

Tensile strength

34.5 - 55.2 MPa

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ASTM D638

Yield strength

44.8 - 55.2 MPa

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ASTM D638

54 MPa

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ISO 527-1/-2

dry

Thermal

PropertyValueTesting StandardConditionPressureComment

Coefficient of thermal expansion

0.000119 - 0.000144 1/K

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ASTM D696

0.00015 1/K

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ISO 11359-1/-2

dry

Glass transition temperature

-40.6 - -38.3 °C

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ASTM D7028

-40 °C

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ISO 11357-1/-2

dry

10°C/min

Heat deflection temperature

104 °C

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ISO 75-1/-2

dry

2 MPa

105 - 115 °C

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ASTM D648

2 MPa

248 °F/hr

125 - 140 °C

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ASTM D648

0.45 MPa

248 °F/hr

Melting point

165 - 172 °C

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ASTM D3418

170 °C

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ISO 11357-1/-3

dry

10°C/min

Relative temperature index, electrical

150 °C

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UL 746B

Relative temperature index, mechanical strength

150 °C

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UL 746B

Specific heat capacity

745 - 958 J/(kg·K)

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DSC

Thermal conductivity

0.17 - 0.19 W/(m·K)

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ASTM D433

Thermal decomposition in air

375 °C

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TGA

1% wt. loss

Thermal decomposition in nitrogen

410 °C

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TGA

1% wt. loss

Flammability

At thickness 1.6 mm IEC 60695-11-10: V-0, At thickness 0.8 mm IEC 60695-11-10: V-0 and yellow card available

Electrical

PropertyValueFrequencyTesting StandardCondition

Dielectric constant

4.5 - 9.5 [-]

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1KHz

ASTM D150

Dissipation factor

0.01 - 0.21 [-]

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100KHz

ASTM D150

Volume resistivity

2e+14 Ω·cm

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ASTM D257

65% RH

Optical

PropertyValueTesting StandardComment

Refractive index

1 [-]

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ASTM D542

sodium D line

Rheological Properties

PropertyValueTesting StandardConditionComment

Density of melt

1.78 g/cm³

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Melt mass-flow rate

2 - 6 g/10min

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ASTM D1238

230°C/12.5kg

Melt viscosity

2300 - 2900 Pa·s

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ASTM D3835

Melt volume-flow rate

1.3 cm³/10min

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ISO 1133

dry

230°C/10kg

Shrinkage

3 %

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ISO 294-4

dry

3 %

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ISO 294-4

dry

Transverse

Thermal conductivity of melt

0.19 W/(m·K)

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Technological properties

Property
Application areas

Biopharma Membranes,Fluoropolymer Processing Aids,Lithium Ion Battery Binder,Water Filtration Membrane

Certifications

Yellow Card