Kynar® 740

About

Product Description
SupplierArkema
Material StatusCommercial: Active
FeaturesHypocrystalline
AvailabilitysEurope,Africa & Middle East ,Latin America,Asia Pacific,North America
Process MethodsInjection Molding,Extrusion

Technical Data
PHYSICALNominal valueUnitTest method
Water Absorption0.03%ISO 62
Moisture Absorption0.015%ISO 62
Density1780kg/m³ISO 1183
Melt Volume Rate
230℃,5kg1.1cm³/10minISO 1133
Molding shrinkage
Parallel2.0%ISO 294-4
Normal2.0%ISO 294-4

MECHANICALNominal valueUnitTest method
Tensile Modulus1700MPaISO 527
Tensile Strength
Yield yld50MPaISO 527-2
Tensile Strain
Yield yld7%ISO 527
Broken BRK>50%ISO 527
Tensile creep modulus
1h1050MPaISO 899-1
1000h570MPaISO 899-1

IMPACTNominal valueUnitTest method
Charpy Unnotch Impact strength
23℃244kJ/m²ISO 179/1eU
-30℃186kJ/m²ISO 179/1eU
Charpy Notched Impact Strength
23℃14kJ/m²ISO 179/1eA
-30℃5kJ/m²ISO 179/1eA

THERMALNominal valueUnitTest method
Melting temperature168ISO 11357-3
Glass Transition Temperature-40ISO 11357-2
Hot deformation temperature HDT
1.80 MPa105ISO 75-1/-2
0.45 MPa135ISO 75-1/-2
Vicat Softening Temperature135ISO 306/B
Coeff. of linear thermal expansion
Parallel150E-6/KISO 11359-2

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame Class Rating
1.6 mmV-0calssIEC 60695-11-10
0.8 mmV-0calssIEC 60695-11-10
Oxygen Index43%ISO 4589-2

ELECTRICALNominal valueUnitTest method
Relative permittivity
100Hz11IEC 60250
1MHz8IEC 60250
Dissipation Factor
100Hz260E-4IEC 60250
1MHz2310E-4IEC 60250
Volume Resistance2E12ohm·mIEC 60093
Surface Resistivity>1E15ohmIEC 60093
Electric strength21kV/mmIEC 60243-1
Compared Tracking Index600IEC 60112

Process Conditions
Injection MoldingNominal valueUnitTest method
Melt Temperature210
Mold Temperature90
Injection speed10mm/s
Maintain pressure at hold13MPa
Forming temperature225
Forming time3
Demolding temperature120

Notes
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