processing of plastics and natural fiber composites dr. míriam garcía (on behalf of mondirect)...
TRANSCRIPT
![Page 1: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/1.jpg)
PROCESSING OF PLASTICS AND NATURAL FIBER
COMPOSITES
Dr. Míriam García
(on behalf of MONDIRECT)
Pozzuoli, 20th-21st January 2005Pozzuoli, 20th-21st January 2005
![Page 2: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/2.jpg)
PROCESSING METHODS OF PLASTICS
EXTRUSION
INJECTION
BLOW MOLDING
CENTRIFUGATION
GRILLING
THERMOFORMING
![Page 3: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/3.jpg)
PROCESSING METHODS OF REINFORCED
PLASTICS MANUAL SHEETS
SIMULTANEUS PROJECTION
CENTRIFUGATION
FILAMENT WINDING
PRESSING
PULTRUSION
RESIN TRANSFER MOULDING (RTM)
EXTRUSION
INJECTION
![Page 4: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/4.jpg)
EXTRUSION
CONTINUOUS PROCESS
MATERIAL FORCED TO FLOW THROUGH A GATE APPLYING PRESSURE AND HEAT.
MATERIAL AT THE EXIT IS COLLECTED WITH A DRAG SYSTEM
INJECTIONTHE MELTED MATERIAL IS INJECTED IN A MOULD AND SOLIDIFIED
OBTENTION OF A FINISHED PRODUCT
![Page 5: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/5.jpg)
INJECTION MOULDING
MATERIAL CONTAINED IN A HOPPER
PLASTIFICATION
INJECTION
SOLIDIFICATION IN A MOLD
PARTS:
INJECTION GROUP
- HOPPER
- DOSSIFICATION, PLASTIFICATION AND INJECTION SYSTEM
MOULDING GROUP
![Page 6: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/6.jpg)
REQUIRES HIGH T AND P
HIGH PRECISION PRODUCTS
SMOOTH SUERFACES
HIGH PRODUCTION RATES
INJECTION MOULDING
![Page 7: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/7.jpg)
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
![Page 8: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/8.jpg)
SINGLE SCREW EXTRUDER
EXTRUSION
TWIN SCREW EXTRUDER
CO-ROTATING
COUNTER-ROTATING
![Page 9: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/9.jpg)
EXTRUSION
DEPENDING ON THE GATE:
TUBES
PROFILES
SHEETS AND FILMS
EXTRUSION COATING
SPECIAL EXTRUSIONS (MOBILE GATES)
![Page 10: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/10.jpg)
NATURAL FIBER/POLYMER COMPOSITES
WOOD/PLASTIC COMPOSITESINJECTION
EXTRUSION
![Page 11: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/11.jpg)
PROPOSED MATERIALS PRODUCTION:
SHEETS
- SANDWICH PANELS
PROFILES
COEXTRUDED MATERIAL
EXTRUSION
NATURAL FIBER/POLYMER COMPOSITES
![Page 12: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/12.jpg)
SHEETS
SHEETS FOR INTERIOR AND EXTERIOR
BULK SHEETS SANDWICH PANELS
![Page 13: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/13.jpg)
PROFILES
PROFILES FOR EXTERIOR AND INTERIOR.
MAXIMUM WIDTH: 500 mm
BULK/HOLLOW
![Page 14: PROCESSING OF PLASTICS AND NATURAL FIBER COMPOSITES Dr. Míriam García (on behalf of MONDIRECT) Pozzuoli, 20th-21st January 2005](https://reader033.vdocuments.net/reader033/viewer/2022051515/5519bc0f5503466f578b49db/html5/thumbnails/14.jpg)
COEXTRUDED MATERIAL
FOAM IN THE INTERIOR
COMPOSITE IN THE EXTERIOR