About |
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PBT is made from PTA and BD which form into polybutylene terephthalate (referred as PBT) after the continuous process of esterification and polycondensation. It is a kind of crystalline and thermoplastic polyester with the features of high heat resistance, toughness, fatigue resistance, high insulation resistance, dimensional stability, preferable elasticity and dyeing property and used in the field of automotive, electronic and electrical appliances, industrial machinery, civil and industrial textile, polymer alloy and blending industry, etc..&& |
Product Description | |
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Supplier | Kanghui |
Generic | polybutylene terephthalate |
Material Status | Commercial: Active |
Features | Good flexibility,Good Dimensional Stability,High Heat Resistance,Fatigue resistance |
Availabilitys | Asia Pacific |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Density | 1.30 to 1.32 | g/cm³ | ASTM D792 |
Melt Flow Rate | |||
250℃,2.16kg | 85 to 110 | g/10min | ASTM D1238 |
Color b | 1.00 to 3.00 | Q/KHS001 | |
Color L | > 95.0 | Q/KHS001 | |
Particle Mass | 1.90 to 2.10 | g/100 pcs | Q/KHS001 |
Intrinsic viscosity | 0.74 to 0.76 | dl/g | Q/KHS001 |
water content | < 0.20 | % | Q/KHS001 |
Ash Content | < 300 | ppm | Q/KHS001 |
MECHANICAL | Nominal value | Unit | Test method |
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tensile strength | 40.0 to 50.0 | MPa | ASTM D638 |
Tensile strain | |||
fracture | > 30 | % | ASTM D638 |
IMPACT | Nominal value | Unit | Test method |
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Impact strength of cantilever beam notch | > 39 | J/m | ASTM D256 |
THERMAL | Nominal value | Unit | Test method |
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Melting temperature | > 222 | ℃ | Q/KHS001 |
Electrical performance | Nominal value | Unit | Test method |
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Dielectric strength | |||
2 mm | > 20 | kV/mm | ASTM D149 |
Supplementary information | Nominal value | Unit | Test method |
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End carboxyl group content | < 24.0 | mol/t | Q/KHS001 |
Notes |
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1. Typical properties: these are not to be construed as specifications. |
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