The raw material used in the extrusion process has a significant impact on the quality, characteristics, and performance of the final product. Therefore, choosing the right raw material in extruder machines is crucial. Here is information on raw material selection in extruder machines and some recommendations:
Raw Material Selection and Its Importance:
- Type of Plastic: The primary material used in plastic extrusion will be plastic. The type of plastic determines the physical and chemical properties of the final product. Different plastic types, such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), are used in various applications.
- Virgin or Recycled Plastic: Using virgin plastic materials involves new and pure materials, providing more predictable results. Recycled plastics, obtained from processing waste plastics, are often more sustainable. Sustainability should be considered in raw material selection.
- Additives: Plastics are often mixed with additives like colorants, fillers, stabilizers, flame retardants to enhance or customize their properties.
- Moisture Content: The moisture content of plastic materials is crucial in the extrusion process. Excessive moisture content can lead to foaming or a decrease in product quality. Therefore, moisture control should be considered during raw material storage.
Raw Material Recommendations:
- Polyethylene (PE): PE is commonly used due to its combination of softness and durability. It is preferred in applications such as cast film, coating, pipe, and profile production.
- Polypropylene (PP): PP is known for its durability and chemical resistance. It is used in applications like coating, packaging, automotive parts, and consumer goods production.
- Polyvinyl Chloride (PVC): PVC is a plastic type providing resistance and excellent electrical insulation. It is used in applications such as pipe, profile, coating, and cabling.
- Polystyrene (PS): PS is preferred for its lightness and low cost. It is used in the production of packaging, plastic sheets, and foam products.
- Polycarbonate (PC): PC offers high impact resistance and clarity. It is used for optical materials, plastic sheets, and special engineering applications.
- ABS (Acrylonitrile-Butadiene-Styrene): ABS is known for its excellent impact resistance and processability. It is used in various applications, including automotive parts, toys, and household appliances.