PBT Modification

PBT engineering plastics are generally divided into general product grade, special grade and various PBT alloys due to their different functions and different application fields. PBT engineering plastic has excellent mechanical properties, the tensile strength can reach 120 MPa, the bending strength can reach 180 MPa, and the IZOD notched impact strength can reach 90 J/m; good processing properties, good fluidity during injection molding, and fast crystallization speed. It is easy to form; the modified PBT engineering plastic has excellent heat resistance and thermal stability, the melting point can reach above 225℃, the heat distortion temperature can reach 208℃ under the condition of 1.82 MPa, and the reinforced series products can reach 120～140 Long-term use at a high temperature of ℃; the product has low water absorption and superior electrical performance, and is suitable for many fields such as electronic appliances and automobiles.

The components of PBT engineering plastics are generally more complex, which mainly include stabilizing additives (such as antioxidants, heat stabilizers), additives to improve mechanical properties (such as reinforcing materials, coupling agents, toughening agents), and improving processing Performance and appearance additives (such as colorants, anti-fogging agents), flame retardant additives (such as flame retardants, smoke inhibitors), etc. The main purpose of adding these substances is to improve product performance or production processes.