Warm Global Customers
With China Plastic Machinery
With China Plastic Machinery
Forming agent refers to the process of heating loose granular or powdered plastic raw materials with various additives in an extruder or internal mixer to melt and plasticize them into a viscous melt. In this process, the components can be fully mixed, and then injected into the mold at a certain pressure and speed. After pressure maintenance and cooling, the mold is opened to obtain a plastic product with a certain shape and size. Forming agent is a type of additive that plays a role in the plastic processing and molding stage.
Polyvinyl chloride (PVC) is a general-purpose resin with extremely high cost performance and has been widely used in many industries of the national economy. In particular, the development in the fields of rigid PVC pipes, profiles, special-shaped materials and building materials is particularly rapid. However, due to the fact that the PVC polymer unit contains about 50% of chlorine elements and its own structural characteristics, it has poor thermal stability, high viscosity, low melt strength and poor plasticizing performance. In addition, the PVC resin particles are tightly packed, unevenly distributed, and contain more "fish eyes" and impurities, which makes the plasticizing processing of PVC difficult. Molding agents are a type of additive that can significantly improve the plasticizing properties of PVC processing and can effectively improve the plasticizing efficiency.
Molding agents are mainly used in the fields of PVC soft products, semi-hard products, hard products, etc., including wires and cables, profiles, pipes, profiles and other products.
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