VALOX™ ENH4550 resin

About
25% GF reinforced, Non-Brominated & Non-Chlorinated Flame Retardant, PBT resin.&&

Product Description
SupplierSABIC
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesHalogen free,Flame Characteristics,V-0,5VA
AvailabilitysNorth America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
MECHANICALNominal valueUnitTest method
Tensile modulus9900MPaASTM D638
Tensile modulus10400MPaISO 527-1-2
tensile strength
fracture112MPaISO 527-2/5
fracture105MPaASTM D638
yield105MPaASTM D638
yield112MPaISO 527-2/5
Tensile strain
fracture2.0%ASTM D638
fracture2.0%ISO 527-2/5
yield2.0%ASTM D638
yield2.0%ISO 527-2/5
Bending modulus9400MPaISO 178
50 mm span9100MPaASTM D790
bending strength170MPaISO 178
bending strength
Yield, 50 mm span161MPaASTM D790
Fracture bending strain2.0%ISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength 
-30℃7.0kJ/m²ISO 179/2C
23℃5.0kJ/m²ISO 179/1eA
23℃7.0kJ/m²ISO 179/2C
Charpy Unnotch Impact strength ISO 179/2U
-30℃33kJ/m²ISO 179/2U
23℃36kJ/m²ISO 179/2U
Impact strength of cantilever beam notch ASTM D256
-30℃59J/mASTM D256
23℃62J/mASTM D256
Impact strength of cantilever beam notch ISO 180/1A
-30℃7.0kJ/m²ISO 180-1A
23℃7.0kJ/m²ISO 180-1A
Impact strength of cantilever beam notch ASTM D4812
-30℃470J/mASTM D4812
23℃520J/mASTM D4812
Notched impact strength of cantilever beam ISO 180/1U
-30℃29kJ/m²ISO 180/1U
23℃33kJ/m²ISO 180/1U
Dart impact equipped with measuring instruments
23℃,Total Energy6.50JASTM D3763

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed, 64 mm span201ISO 75-2/Af
1.8 MPa, unannealed, 3.2 mm204ASTM D648
0.45 MPa, unannealed, 64 mm span219ISO 75-2/Bf
0.45 MPa, unannealed, 3.2 mm216ASTM D648
Vicat Softening Temp 
215ASTM D1525 12
202ASTM D1525 13
Ball pressure test
125℃Pass IEC 60695-10-2
Linear coefficient of thermal expansion
Relative temperature index
Electrical performance130UL 746
Strength mechanical performance140UL 746
Impact mechanical performance140UL 746

Electrical performanceNominal valueUnitTest method
Volume resistivity1.0E+15 to 1.0E+16ohms·cmASTM D257
Volume resistivity1.0E+15 to 1.0E+16ohms·cmIEC 60093
Dielectric strength ASTM D149
3.2 mm in air21kV/mmASTM D149
3.2 mm in oil21kV/mmASTM D149
Arc resistancePLC 6 ASTM D495
Compared to the leakage tracing indexPLC 2 UL 746
Compared to the leakage tracing index300VIEC 60112
High Arc Burning Index (HAI)PLC 0 UL 746
High voltage arc marking rate
HVTRPLC 0 UL 746
Hot wire ignition
HWIPLC 0 UL 746

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level UL 94
0.75 mmV-0 UL 94
3.00 mm5VA UL 94
Glowing wire flammability index
0.75 mm960IEC 60695-2-12
Igniting temperature of the hot wire IEC 60695-2-13
0.8 mm775IEC 60695-2-13
3 mm775IEC 60695-2-13

PHYSICALNominal valueUnitTest method
Density1.53g/cm³ASTM D792
Density1.52g/cm³ISO 1183
Melt Flow Rate
250℃,5.0kg27g/10minASTM D1238
Melt Volume Rate
250℃,5 kg20.0cm³/10minISO 1133
Shrinkage rate Internal Method
TD0.60 to 1.2%Internal Method
TD:3.2 mm0.50 to 1.1%Internal Method
Water absorption rate
Saturation, 23 ℃0.23%ISO 62
Equilibrium, 23 ℃, 50% RH0.060%ISO 62
Apparent viscosity of melt
250℃,1500 sec^-1210Pa·sISO 11443

Special valueNominal valueUnitTest method
A50219ISO 306/A50
B50206ISO 306
B120206ISO 306/B120

Process Conditions
injectionNominal valueUnitTest method
Drying temperature110 to 120°C
Drying time2.0 to 4.0hr
Recommended maximum moisture content0.020%
Hopper temperature40 to 60°C
Barrel rear temperature230 to 240°C
Barrel middle temperature235 to 250°C
Barrel front temperature240 to 260°C
Nozzle temperature230 to 255°C
Processing (melt) temperature245 to 260°C
Mold temperature40 to 100°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. Tensile Bar
3. 0.20 in/min
4. Type I, 0.20 in/min
5. 0.051 in/min
6. 0.079 in/min
7. at Break
8. 2 mm/min
9. 80*10*4 sp=62mm
10. 80*10*4 mm
11. Rate A (50°C/h), Loading 1 (10 N)
12. Rate A (50°C/h), Loading 2 (50 N)
13. Tungsten Electrode
14. Surface
15. by VDE
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