XENOY 6620 PC/PBT alloy not only maintains the chemical resistance and easy forming characteristics of crystalline material PBT, but also has the toughness and dimensional stability of amorphous material PC. Its products are widely used in automobile bumpers, automobile handles, electronic components and so on. PC/PBT has the comprehensive characteristics of both PC and PBT, such as the high toughness and geometric stability of PC and the chemical stability, thermal stability and lubricating properties of PBT.
XENOY 6620 PBT is one of the toughest engineering thermoplastic materials. It is a semi-crystalline material with very good chemical stability, mechanical strength, electrical insulation properties and thermal stability. These materials have good stability under a wide range of environmental conditions.
PBT has very weak hygroscopic properties. The tensile strength of non-reinforced PBT is 50MPa, and that of glass additive type is 170MPa. Too much glass additive will cause the material to become brittle. The crystallization of PBT is very rapid, which will cause bending deformation due to uneven cooling. For materials with glass additives, the shrinkage in the process direction can be reduced, but the shrinkage in the direction perpendicular to the process is basically the same as that of ordinary materials. Generally, the shrinkage rate of materials is between 1.5% and 2.8%. The material with 30% glass additive shrinks between 0.3% and 1.6%. The melting point (225°C) and high temperature deformation temperature are lower than those of PET materials. The Vicat softening temperature is about 170°C. The glass transition temperature (glass trasitio temperature) is between 22°C and 43°C. Due to the high crystallization rate of PBT, its viscosity is very low, and the cycle time of plastic part processing is generally low.
Saudi-SABIC plastic XENOY PC/PBT 6620 physical properties table parameters
XENOY 6620
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