Celanex® 2002-2

About
Celanex 2002-2 is a general purpose, unreinforced polybutylene terephthalate with a good balance of mechanical properties and processability. Celanex 2002-2 is a medium flow material that contains an internal lubricant.&&

Product Description
SupplierCelanese
Genericpolybutylene terephthalate
Material StatusCommercial: Active
FeaturesExcellent Processability,Lubricating,Moderate liquidity,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density1.31g/cm³ASTM D792, ISO 1183
Melt Flow Rate20g/10minASTM D1238
Melt Volume Rate
250℃,2.16 kg20.0cm³/10minISO 1133
Shrinkage rate
MD1.8 to 2.0%ASTM D955
MD1.8 to 2.0%ISO 294-4

IMPACTNominal valueUnitTest method
Charpy Notched Impact StrengthISO 179/1eA
-30℃6.0kJ/m²
23℃6.0kJ/m²
Charpy Unnotch Impact strengthISO 179/1eU
-30℃190kJ/m²
23℃无断裂
Impact strength of cantilever beam notch
23℃5.0kJ/m²ISO 180-1A

THERMALNominal valueUnitTest method
Hot deformation temperature
0.45 MPa, unannealed150ISO 75-2/B
0.45 MPa, annealed160ASTM D648
1.8 MPa, unannealed55.0ASTM D648,ISO 75-2/A
Glass transition temperature60.0ISO 11357-2
Vicat Softening Temp
B50190ISO 306
Melting temperature225ISO 11357-3, ASTM D3418
Linear coefficient of thermal expansionISO 11359-2
MD1.1E-41/℃
TD1.3E-41/℃

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+15ohmsIEC 60093
Volume resistivity
1.0E+16ohms·cmASTM D257
1.0E+15ohms·cmIEC 60093
Dielectric strength
17kV/mmASTM D149
23kV/mmIEC 60243-1
Dielectric constant
1 MHz3.20ASTM D150
100 Hz4.00IEC 60250
1 MHz3.50IEC 60250
Dissipation factorIEC 60250
100 Hz1.4E-3
1 MHz0.022
Compared to the leakage tracing index600VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
0.71 mmHBUL 94
Extreme oxygen index22%ISO 4589-2

MECHANICALNominal valueUnitTest method
Rockwell hardness
M-level78ISO 2039-2
Tensile modulus
-40℃3100MPaASTM D638
23℃3170MPaASTM D638
80℃469MPaASTM D638
121℃296MPaASTM D638
2600MPaISO 527-2/1A/1
tensile strength
Yield, -40 ℃101MPaASTM D638
Yield, 0 ℃75.8MPaASTM D638
Yield, 23 ℃55.8MPaASTM D638
Yield, 80 ℃24.8MPaASTM D638
Yield, 121 ℃17.9MPaASTM D638
yield60.0MPaISO 527-2/1A/50
Fracture, 23 ℃55.8MPaASTM D638
fracture60.0MPaISO 527-2/1A/50
50% strain30.0MPaISO 527-2/1A/50
Tensile strain
Yield, -40 ℃7.2%ASTM D638
Yield, 0 ℃4.4%ASTM D638
Yield, 23 ℃3.2%ASTM D638
Yield, 80 ℃17%ASTM D638
Yield, 121 ℃23%ASTM D638
yield4.0%ISO 527-2/1A/50
Fracture, 23 ℃200%ASTM D638
Nominal tensile fracture strain> 50%ISO 527-2/1A/50
Bending modulus
23℃2500MPaISO 178
bending strength
23℃80.0MPaISO 178

Process Conditions
injectionNominal valueUnitTest method
Drying temperature120 to 130°C
Drying time4.0hr
Recommended maximum moisture content0.020%
Proposed maximum recycled material ratio25%
Hopper temperature20.0 to 50.0°C
Barrel rear temperature230 to 240°C
Barrel middle temperature235 to 250°C
Barrel front temperature235 to 250°C
Nozzle temperature250 to 260°C
Processing (melt) temperature235 to 260°C
Mold temperature65.0 to 93.0°C
Injection speed中等偏快
Back pressure0.00 to 0.345MPa

Notes
1. Typical properties: these are not to be construed as specifications.
2. 10°C/min
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