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"NOVADURAN SEF series" Halogen-Free flame retardant PBT
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"NOVADURAN SEF series" is a brand-new halogen-free flame retardant PBT developed with the original flame retardant technology. SEF series is classified UL94 V-0 and good electric insulation characteristics.

NOVADURAN SEF series enable to markedly improve the safety of the electric and elctronic equipmets.

Low mold deposit and low volatile types are also available.

Features
 
  1. Bromin free flame retardant   Movie of Comparative Tracking Index Test
  2. High tracking resistant :CTI(≧600V:PLC0)
  3. Low volatile matter


Typical properties
NOVADURAN
Polybutylene terephthalate Resin
Properties Test Method Terms Units SEF-500T SEF-515T SEF-515X SEF-530 SEF-530X
Halogen-free Flame Retardant
Unreinforced
Flame Retardant
GF Reinforced
Flame Retardant
GF Reinforced
Flame Retardant
GF Reinforced
Flame Retardant
GF Reinforced
Flame Retardant
Standard Standard Low volatile Standard Low volatile
Percentage of filler and - - - - GF GF GF GF
reinforcing material - - % - 15 15 30 30
   
Physical properties    
   
Density ISO 1183 - g/cm3 1.31 1.44 1.44 1.58 1.55
Water absorption - 23degC, Underwater % 0.08 0.08 0.08 0.07 0.07
   
Rheological properties    
   
Melt Mass-flow Rate ISO 1133 g/10min 7 35 30 24 20
Melt Volume-flow Rate cm3/10min 6 27 20 18 17
Temperature degC 250 250 250 250 250
Load kg 2.16 5.00 5.00 5.00 5.00
Moulding shrinkage(3mmt) - MD % 2.3 0.5 0.5 0.2 0.2
TD 1.5 1.2 1.2 0.9 0.9
   
Mechanical properties    
   
Tensile modulus ISO 527-1
, 527-2
 MPa 2700 5300 6400 11000 11000
Yield stress 35 - - - -
Yield strain % 34 - - - -
Nominal strain at break - 40 - - - -
Stress at 50% strain  MPa - - - - -
Stress at break - 74 80 90 110
Strain at break % - 2.5 3 1.3 2.3
Flexural strength ISO 178 - MPa 62 110 123 150 165
Flexural modulus 2600 5300 6300 10800 10800
Charpy impact strength 23 degC kJ/m2 62 37 40 32 43
ISO 179-1
Charpy notched , 179-2 23 degC kJ/m2 6 9 6 8 7
   impact strength
   
Thermal properties    
   
Melting temperature ISO 11357-3 degC 224 224 224 224 224
Temperature of deflection  ISO 75-1
, 75-2
1.80MPa degC 80 205 205 215 210
    under load 0.45MPa 160 220 220 220 220
Coefficient of Linear ISO 11359-2 MD ×10-5 1/degC - - 4 - 3
   thermal expansion TD - - 8 - 6
Flammability UL94 0.75mmt - V-0 V-0 V-0 V-0 V-0
GWFI IEC60695-2-12 3.0mmt - 960 960 960 960 960
   
Electrical properties    
   
Relative permittivity IEC 60250 1MHz - 3.5 3.8 3.6 4.1 3.9
Dissipation factor IEC 60250 1MHz - 0.019 0.020 0.015 0.013 0.013
Volume resistivity IEC 60093 - ohm-m 1.E+15 1.E+15 1.00E+15 1.E+15 1.E+15
Surface resistivity IEC 60093 - ohm 1.E+15 1.E+15 1.00E+15 1.E+15 1.E+15
Electric strength IEC 60243-1 1mmt MV/m - - - - -
2mmt 22 26 27 27 30
Comparative tracking index UL746A - - PLC 0 PLC 0 PLC 0 PLC 0 PLC 0
The listed properties are portrayed as general information only and are not product specifications. 
Mitsubishi Engineering-Plastics disclaims any liability in connection with the use of the information in this table. 


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