Tetra brik

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Author : Stéphane Le Han

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Tetra brik

  1. 1. Materials and waste Part two
  2. 2. Tetra Brik <ul><li>We’ve shown last week that each material had advantages and disadvantages. </li></ul>
  3. 3. Tetra Brik. <ul><li>Let’s study Tetra Brik bottle. </li></ul>
  4. 4. Tetra Brik. <ul><li>We can see paper outer and metal (aluminium) inside. </li></ul>
  5. 5. Tetra Brik. <ul><li>We’re trying to separate the materials. </li></ul>
  6. 6. Tetra Brik.
  7. 7. Tetra Brik.
  8. 8. Tetra Brik. <ul><li>We found : </li></ul><ul><li>Paper </li></ul><ul><li>Aluminium </li></ul><ul><li>Plastic (three times) </li></ul><ul><li>cardboard </li></ul>
  9. 9. Tetra Brik.
  10. 10. Tetra Brik. <ul><li>We found six layers which </li></ul><ul><li>are, from air to drink : </li></ul><ul><li>1 - plastic </li></ul><ul><li>2 - paper </li></ul><ul><li>3 - cardboard </li></ul><ul><li>4 - plastic </li></ul><ul><li>5 - aluminium </li></ul><ul><li>6 - plastic </li></ul>
  11. 11. Tetra Brik. <ul><li>Why plastic ? </li></ul>
  12. 12. Tetra Brik. <ul><li>Why plastic ? </li></ul><ul><li>Because plastic is watertight. </li></ul>
  13. 13. Tetra Brik. <ul><li>Why cardboard ? </li></ul>
  14. 14. Tetra Brik. <ul><li>Why cardboard ? </li></ul><ul><li>Because without cardboard the bottle would get out of shape. </li></ul>
  15. 15. Tetra Brik. <ul><li>Why paper ? </li></ul>
  16. 16. Tetra Brik. <ul><li>Why paper ? </li></ul><ul><li>Because on paper it’s easy to write and draw. </li></ul>
  17. 17. Tetra Brik. <ul><li>Why aluminium ? </li></ul>
  18. 18. Tetra Brik. <ul><li>Why aluminium ? </li></ul><ul><li>Because aluminium protect drink from air (oxygen). </li></ul>
  19. 19. Tetra Brik.
  20. 20. Tetra Brik… the end. <ul><li>Goodbye… </li></ul><ul><li>The french team. </li></ul>

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