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Sno -Camp Polymer Chemistry

Sno -Camp Polymer Chemistry. Advantages of Polymers. Ease of forming Recyclable Readily available raw material (crude oil) Low cost (most is less than $2.00 per lbs.). Polymers. Advantage Low (softening) “melt” temperature Disadvantage Low (softening) “melt” temperature.

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Sno -Camp Polymer Chemistry

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  1. Sno-Camp Polymer Chemistry

  2. Advantages of Polymers • Ease of forming • Recyclable • Readily available raw material (crude oil) • Low cost (most is less than $2.00 per lbs.)

  3. Polymers • Advantage • Low (softening) “melt” temperature • Disadvantage • Low (softening) “melt” temperature

  4. Most Consumer Plastics are Thermoplastics • Why you ask?: • Form with heat • Recyclable • Low cost compared to other containers • Transparent ( see the product)

  5. Cost of 20oz Containers • PETE $0.06 • Aluminum $0.07 • Glass $0.10

  6. Response to Heat • Thermoplastic • Softens or melts with heat • Thermoset • Sets with chemical reaction • Elastomer • Is elastic

  7. Various Polymer Structures

  8. Polyethylene LDPE • Low density polyethylene (trees with branches) HDPE • High density polyethylene (trees without branches)

  9. Polyethylene • LDPE Sandwich Wrap • .92-.94 specific gravity • HDPE Milk Carton • .95-.97 specific gravity • Degree of crystalline content and branches • Heat HDPE jug with a heat gun

  10. Low Density Polyethylene Density of .910-.925 g/cm3 • Linear low-density Polyethylene Density .915-.925 g/cm3 • High-Density Polyethylene Density greater than .941

  11. Polyethylene

  12. Polyethylene

  13. Polypropylene

  14. Polyvinyl Chloride

  15. Polystyrene

  16. Polycarbonate

  17. ABS (Acrylonitrile, Butadine, Styrene)

  18. Nylon 6 – 10

  19. Polyester

  20. PETE

  21. Polylactic Acid (PLA)

  22. Major types of polymers we see every day

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