The molding temperature of low-viscosity PBT products is closely related to their final mechanical properties.

The molding temperature of low-viscosity PBT products is closely related to their final mechanical properties.
The choice of molding temperature has a direct impact on the mechanical properties of the product, such as its strength, hardness, tensile strength, modulus, toughness and impact strength. In general, higher molding temperatures help to improve the crystallinity and crystal size of PBT, thereby improving the mechanical properties of the product. For example, a suitable molding temperature can promote the orderly arrangement of PBT molecular chains, enhance the tensile strength and modulus of the product, and at the same time increase the hardness of the product. However, excessively high molding temperatures may lead to excessive thermal stress, which will reduce the mechanical properties of the product, especially the toughness and impact strength. On the contrary, too low molding temperature may lead to incomplete arrangement of molecular chains in the product, reducing the strength and hardness of the product.

When determining the molding temperature, it is necessary to comprehensively consider the requirements of various mechanical performance indicators. Under the appropriate molding temperature, PBT molecular chains can be better arranged, and the crystal size increases, thereby improving the mechanical properties of the product such as strength, hardness, tensile strength and modulus. In addition, the appropriate molding temperature can also promote the toughness and impact strength of the product, improve the durability and reliability of the product. Therefore, in the production of PBT products, the selection of molding temperature is crucial, and it needs to be adjusted reasonably according to specific requirements and material properties to achieve the best mechanical performance and meet the needs of different application scenarios.