Application of talc powder in the field of plastics
Talc filled plastic can improve the rigidity, dimensional stability and lubricity of the product, prevent high temperature creep, reduce the wear of the forming machinery, and make the impact strength of the polymer basically unchanged while improving the hardness and creep resistance through filling. If properly treated, it can increase the heat shock strength of the polymer, improve the molding shrinkage rate of the plastic, the bending elastic modulus of the product and the tensile yield strength. The low price of talc makes it suitable for use as an incremental agent (the price of the complex is low and the physical properties of the resin are reduced to a minimum), while the sheet structure or the high aspect ratio of talc makes it suitable for use as a reinforcing agent (improving the mechanical properties of the complex).
Applied to PP material: This aspect of the application is now the most widely studied, but also the most used. It is now widely used in automotive parts, such as car bumpers, parts around the engine, air conditioning parts, instrument panels, lights, chassis, pedals and other parts.
In addition, it is also used to improve the mechanical properties of PP material and give the material new properties. For example, filling PP material with 32% talc can improve the mechanical strength of PP material, which is used in the production of washing machine accessories and building drainage pipe parts. It has the characteristics of high surface finish, good toughness, high thermal deformation temperature, good dimensional stability, etc., and has been widely used.
Application in automotive: PP material source is wide, the density is small, and can be modified to improve its physical and chemical properties, can reduce costs, reduce weight, reduce fuel consumption without reducing mechanical properties. For example, the cooling fan for cars with PP injection molding filled with talc powder is not only light in weight, low in noise, but also improves the cooling efficiency.
