广州华灿塑料科技有限公司
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Valox* Resin 357
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Americas: COMMERCIAL
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PBT, Unreinforced, impact modified, UL94V-0 rated. Applications like bobbins, switches and enclosures.
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Property
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| TYPICAL PROPERTIES (1) | ||||
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MECHANICAL
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Value | Unit | Standard | |
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Tensile Stress, yld, Type I, 50 mm/min
|
41
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MPa
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ASTM D 638
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|
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Tensile Stress, brk, Type I, 50 mm/min
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48
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MPa
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ASTM D 638
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|
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Tensile Strain, yld, Type I, 50 mm/min
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5
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%
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ASTM D 638
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|
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Tensile Strain, brk, Type I, 50 mm/min
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54
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%
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ASTM D 638
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|
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Tensile Modulus, 5 mm/min
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2020
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MPa
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ASTM D 638
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|
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Flexural Stress, yld, 1.3 mm/min, 50 mm span
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78
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MPa
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ASTM D 790
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|
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Flexural Stress, brk, 1.3 mm/min, 50 mm span
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82
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MPa
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ASTM D 790
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|
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Flexural Modulus, 1.3 mm/min, 50 mm span
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2100
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MPa
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ASTM D 790
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|
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Hardness, Rockwell R
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117
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-
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ASTM D 785
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|
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IMPACT
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Value | Unit | Standard | |
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Izod Impact, unnotched, 23°C
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NB3204
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J/m
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ASTM D 4812
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|
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Izod Impact, notched, 23°C
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319
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J/m
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ASTM D 256
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|
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Izod Impact, notched, -30°C
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153
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J/m
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ASTM D 256
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|
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Gardner, 23°C
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43
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J
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ASTM D 3029
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|
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Modified Gardner, 23°C
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43
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J
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ASTM D 3029
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|
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Instrumented Impact Total Energy, 23°C
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35
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J
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ASTM D 3763
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|
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THERMAL
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Value | Unit | Standard | |
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Vicat Softening Temp, Rate B/50
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134
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°C
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ASTM D 1525
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|
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HDT, 0.45 MPa, 3.2 mm, unannealed
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135
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°C
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ASTM D 648
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|
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HDT, 1.82 MPa, 3.2mm, unannealed
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98
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°C
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ASTM D 648
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|
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HDT, 0.45 MPa, 6.4 mm, unannealed
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137
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°C
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ASTM D 648
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|
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HDT, 1.82 MPa, 6.4 mm, unannealed
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98
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°C
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ASTM D 648
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|
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CTE, -40°C to 40°C, flow
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9.18E-05
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1/°C
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ASTM E 831
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|
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CTE, 60°C to 138°C, flow
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1.24E-04
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1/°C
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ASTM E 831
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Relative Temp Index, Elec
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120
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°C
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UL 746B
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|
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Relative Temp Index, Mech w/impact
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120
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°C
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UL 746B
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Relative Temp Index, Mech w/o impact
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140
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°C
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UL 746B
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PHYSICAL
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Value | Unit | Standard | |
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Specific Gravity
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1.35
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-
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ASTM D 792
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|
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Specific Volume
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0.74
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cm3/g
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ASTM D 792
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Water Absorption, 24 hours
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0.08
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%
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ASTM D 570
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Mold Shrinkage, flow, 3.2 mm
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1 - 1.4
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%
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SABIC Method
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|
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Mold Shrinkage, flow, 0.75-2.3 mm
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0.8 - 1.1
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%
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SABIC Method
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|
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Mold Shrinkage, flow, 2.3-4.6 mm
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1 - 1.4
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%
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SABIC Method
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|
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Mold Shrinkage, xflow, 0.75-2.3 mm
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0.9 - 1.3
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%
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SABIC Method
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|
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Mold Shrinkage, xflow, 2.3-4.6 mm
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1.2 - 1.6
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%
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SABIC Method
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|
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Melt Flow Rate, 250°C/5.0 kgf
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9.6
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g/10 min
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ASTM D 1238
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ELECTRICAL
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Value | Unit | Standard | |
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Volume Resistivity
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1.2E+16
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Ohm-cm
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ASTM D 257
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|
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Dielectric Strength, in air, 3.2 mm
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18.5
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kV/mm
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ASTM D 149
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|
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Dielectric Strength, in oil, 1.6 mm
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25.1
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kV/mm
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ASTM D 149
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|
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Dielectric Strength, in oil, 3.2 mm
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18.5
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kV/mm
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ASTM D 149
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Relative Permittivity, 100 Hz
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3.2
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-
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ASTM D 150
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Relative Permittivity, 1 MHz
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3.2
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-
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ASTM D 150
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Dissipation Factor, 100 Hz
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0.003
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-
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ASTM D 150
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Dissipation Factor, 1 MHz
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0.03
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-
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ASTM D 150
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Arc Resistance, Tungsten {PLC}
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6
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PLC Code
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ASTM D 495
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Hot Wire Ignition {PLC)
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2
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PLC Code
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UL 746A
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High Voltage Arc Track Rate {PLC}
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3
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PLC Code
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UL 746A
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High Ampere Arc Ign, surface {PLC}
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3
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PLC Code
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UL 746A
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Comparative Tracking Index (UL) {PLC}
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2
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PLC Code
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UL 746A
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FLAME CHARACTERISTICS
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Value | Unit | Standard | |
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UL Recognized, 94HB Flame Class Rating (3)
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0.45
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mm
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UL 94
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|
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UL Recognized, 94V-0 Flame Class Rating (3)
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0.63
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mm
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UL 94
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|
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UL Recognized, 94-5VA Rating (3)
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2.99
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mm
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UL 94
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CSA (See File for complete listing)
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LS88480
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File No.
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CSA LISTED
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Oxygen Index (LOI)
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30
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%
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ASTM D 2863
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UV-light, water exposure/immersion
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F2
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-
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UL 746C
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Source GMD, last updated:09/26/2008
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Processing
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| Parameter | ||
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Injection Molding
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Value | Unit |
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Drying Temperature
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120
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°C
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Drying Time
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3 - 4
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hrs
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Drying Time (Cumulative)
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12
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hrs
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Maximum Moisture Content
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0.02
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%
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Melt Temperature
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250 - 265
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°C
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Nozzle Temperature
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245 - 260
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°C
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Front - Zone 3 Temperature
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250 - 265
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°C
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Middle - Zone 2 Temperature
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245 - 260
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°C
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Rear - Zone 1 Temperature
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240 - 255
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°C
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Mold Temperature
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50 - 75
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°C
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Back Pressure
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0.3 - 0.7
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MPa
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Screw Speed
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50 - 100
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rpm
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Shot to Cylinder Size
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40 - 80
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%
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Vent Depth
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0.025 - 0.038
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mm
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