5-Characteristics of polymer-based sheet and film

• Performance characteristics of polymer-based sheet and film

  • Polymer film is usually very thin and flexible, such as cellulose acetate used for photographic film
  • Polymer sheet is thicker than polymer film and is available in stock sheets of varying thicknesses-for example, foam board sheet is available in 3 mm 5 mm 10 mm and 20 mm standard thickness
• Foam board


  Two outer layers of card with a foam middle core uses: mood board backing, presentation boards, modelling
• Fluted PP sheet


  Extruded sheet with integral 'flutes or corrugations. Lightweight and easily bent along the flutes; uses: signs(eg construction site signs), storage box construction, portfolio cases, small models
• Translucent PP sheet


  Tough polymer sheet. Can be folded millions of times. Virtually impossible to tear, water resistant uses: packaging products,folders and boxes
• Styrofoam


  Dense, closed-cell foam. Can be cut, shaped and sanded with standard workshop tools uses: product modelling, formers for moulding and laminating
• Low-density polyethylene (LDPE) sheet


  Tough, available in thin sheet form, transparent, good chemical resistance, flexible uses: food wrapping, air pillow packaging, bubble wrap, carrier bags
• Plastazote foam


  Closed-cell polyethylene foam, tough, flexible, good impact resistance, impermeable to liquids uses: swimming floats,gym and exercise mats,sound and pipe insulation,stage props,protective packaging
• Cellulose acetate


  Transparent, tough, naturally biodegrades uses: packaging film,membranes,photographic film
• Polylactide


  Transparent, tough, naturally biodegrades, uses: biodegradable packaging film