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PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES

PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES. Dr. Míriam García (on behalf of MONDIRECT). Pozzuoli, 20th-21st January 2005. PROCESSING METHODS OF PLASTICS. EXTRUSION INJECTION BLOW MOLDING CENTRIFUGATION GRILLING THERMOFORMING. PROCESSING METHODS OF REINFORCED PLASTICS.

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PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES

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  1. PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005

  2. PROCESSING METHODS OF PLASTICS • EXTRUSION • INJECTION • BLOW MOLDING • CENTRIFUGATION • GRILLING • THERMOFORMING

  3. PROCESSING METHODS OF REINFORCED PLASTICS • MANUAL SHEETS • SIMULTANEUS PROJECTION • CENTRIFUGATION • FILAMENT WINDING • PRESSING • PULTRUSION • RESIN TRANSFER MOULDING (RTM) • EXTRUSION • INJECTION

  4. EXTRUSION CONTINUOUS PROCESS MATERIAL FORCED TO FLOW THROUGH A GATE APPLYING PRESSURE AND HEAT. MATERIAL AT THE EXIT IS COLLECTED WITH A DRAG SYSTEM INJECTION THE MELTED MATERIAL IS INJECTED IN A MOULD AND SOLIDIFIED OBTENTION OF A FINISHED PRODUCT

  5. INJECTION MOULDING • PARTS: • INJECTION GROUP - HOPPER - DOSSIFICATION, PLASTIFICATION AND INJECTION SYSTEM • MOULDING GROUP MATERIAL CONTAINED IN A HOPPER PLASTIFICATION INJECTION SOLIDIFICATION IN A MOLD

  6. INJECTION MOULDING REQUIRES HIGH T AND P HIGH PRECISION PRODUCTS SMOOTH SUERFACES HIGH PRODUCTION RATES

  7. EXTRUSION SCREW GOES AROUND AND MAKES MATERIAL PASS THROUGH CYLINDER TILL THE GATE HIGH SHEAR STRESS AND COMPRESSION DUE TO RELATIVE MOVEMENT BETWEEN SCREW AND CYLINDER, HIGH MIXING EFFICIENCY

  8. SINGLE SCREW EXTRUDER TWIN SCREW EXTRUDER CO-ROTATING COUNTER-ROTATING EXTRUSION

  9. EXTRUSION DEPENDING ON THE GATE: TUBES PROFILES SHEETS AND FILMS EXTRUSION COATING SPECIAL EXTRUSIONS (MOBILE GATES)

  10. NATURAL FIBER/POLYMER COMPOSITES INJECTION EXTRUSION WOOD/PLASTIC COMPOSITES

  11. NATURAL FIBER/POLYMER COMPOSITES EXTRUSION • PROPOSED MATERIALS PRODUCTION: • SHEETS - SANDWICH PANELS • PROFILES • COEXTRUDED MATERIAL

  12. SHEETS SHEETS FOR INTERIOR AND EXTERIOR BULK SHEETS SANDWICH PANELS

  13. PROFILES PROFILES FOR EXTERIOR AND INTERIOR. MAXIMUM WIDTH: 500 mm BULK/HOLLOW

  14. COEXTRUDED MATERIAL FOAM IN THE INTERIOR COMPOSITE IN THE EXTERIOR

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