PBT（SK605美国杜邦）
PBT PBT BM6450XD BK560 高粘度，吹塑挤出级
PBT FG6130 NC010 中等粘度，细丝挤出注塑级
PBT S600F20 BK851 含润滑剂，中等粘度
PBT S610SF BK851 低粘度，高流动，生产阶段快
PBT 6129 NC010 高粘度，挤出和注塑级
PBT CE2255 BK580 低粘度
PBT CE2055 BK580 低粘度，经润滑
Crastin? FG6130 NC010PBT未增强 高粘度PBT用于与食品接触的应用和挤出、注塑成型
Crastin? FG6134 NC010PBT未增强 中等粘度PBT用于与食品接触的应用
Crastin? FGS600F10 NC010PBT未增强 PBT用于与食品接触的应用
Crastin? FGS600F40 BK594PBT
Crastin? FGS600F40 NC010PBT未增强 低粘度PBT用于与食品接触的应用
Crastin? HR5315HF BK503PBT-I-GF1515% 玻纤增强, 耐水解, PBT
Crastin? BM6450XD BK560PBT未增强 PBT用于吹塑成型
Crastin? CE15315 BK010PBT-GF15 FR(17)15% 玻纤增强, 阻燃, PBT
Crastin? CE15315 NC010PBT-GF15 FR(17)15% 玻纤增强, 阻燃, PBT
Crastin? CE15330 BK010PBT-GF30 FR(17)30% 玻纤增强, 阻燃, PBT
Crastin? CE15330 NC010PBT-GF30 FR(17)30% 玻纤增强, 阻燃, PBT
Crastin? CE3054 BK580PBT
First, PBT is one of the most tough engineering thermoplastic materials. It is a semi-crystalline material with excellent chemical stability, mechanical strength, electrical insulation and thermal stability. These materials have good stability under a wide range of environmental conditions. The hygroscopicity of PBT is very weak. The tensile strength of unreinforced PBT was 50MPa, and that of glass-additive PBT was 170MPA. Too much glass additive will cause the material to become brittle. PBT crystallizes rapidly, which results in bending deformation due to uneven cooling. For materials with glass additives, the shrinkage in the flow direction can be reduced, but it is basically the same as that in the vertical direction. The shrinkage of general material is between 1.5% and 2.8% . Materials containing 30% glass additives shrink between 0.3% and 1.6% . The melting point (225 °C) and high temperature deformation temperature are lower than those of PET. Vicar's softening temperature is about 170 °C. The glass trasito temperature ranges from 22 °C to 43 °C. Because of the high crystallization rate of PBT, its viscosity is very low, and the processing cycle time of plastic parts is generally low. PP: Polypropylene is a semi crystalline Thermoplastic. With High Impact Resistance, mechanical properties strong toughness, resistance to a variety of organic solvents and acid-base corrosion. In the industry has a wide range of applications, is one of the common polymer materials. Australian coins are also made of polypropylene. Commonly used to make repeatedly bending products, power cord plug connector. A box that needs to be opened and closed repeatedly. The difference between PP and PBT is that the corrosion resistance of PP is better than PBT. 1. PP material is modified polypropylene, which has high crystallinity, regular structure and strong corrosion resistance. Therefore, it has excellent mechanical properties. The absolute value of mechanical properties of polypropylene is higher than that of polyethylene, but it is still low in plastic materials, and its tensile strength can only reach 30mpa or slightly higher level. The higher the ISOTACTIC index, the higher the tensile strength, but the higher the ISOTACTIC index, the lower the impact strength. 2. PBT is made of polybutylene terephthalate (PBT) , which belongs to the polyester family. It is made of 1.4-PBT butylene glycol and terephthalic acid or terephthalic acid DMT, and by mixing process made of opalescent translucent to opaque, crystalline thermoplastic polyester resin. Together with PET, they are collectively known as thermoplastic polyesters, or saturated polyesters. PBT is one of the toughest engineering thermoplastic materials. It is a semi-crystalline material with excellent chemical stability, mechanical strength, electrical insulation and thermal stability. The disadvantage is poor corrosion resistance.