Jacob r.

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Jacob r.

  1. 1. Burning Questions A 2012 Science Fair Project By Jacob R.
  2. 2. How Flammable are different fabrics? <ul><li>We burned various fabrics to see which ones burned the longest and how they burned. </li></ul>
  3. 3. How can clothing catch fire? <ul><li>Common causes of clothing fires: </li></ul><ul><li>Reaching over an open flame such as a stove or a barbecue </li></ul><ul><li>Kids playing with matches or lighters </li></ul><ul><li>Cigarettes </li></ul><ul><li>Candles </li></ul><ul><li>Space Heaters </li></ul>
  4. 4. Fabrics Tested <ul><li>100% cotton – khaki, denim, jersey (t-shirt) </li></ul><ul><li>100% Polyester </li></ul><ul><li>100% Nylon </li></ul><ul><li>Cotton/Polyester blends </li></ul><ul><li>Wool </li></ul><ul><li>Flame-resistant (chemically treated) 100% polyester </li></ul>
  5. 5. Some of our fabrics
  6. 6. Choosing the Fabrics
  7. 7. Setup for the burning <ul><li>We burned the fabrics in the garage with the door open for ventilation. We used a metal dutch-oven table with the fabrics taped vertically to the back of the windscreen of the table. We kept a fire extinguisher nearby for safety. Fabrics were ignited with an open flame from a long butane lighter. </li></ul>
  8. 8. What we measured <ul><li>How long each fabric took to burn </li></ul><ul><li>Qualities such as type of flame, smoke, smell and residue </li></ul>
  9. 9. Different Fabrics Burning <ul><li>100% Polyester burned easily, with a bumpy flame. It smelled funny, like burning plastic and gave off black smoke. As it burned it dripped burning liquid that hardened and felt like a rock. </li></ul>
  10. 10. Burning 100% Cotton <ul><li>100% cotton burned like paper. It left white ash behind and smelled like burning paper. </li></ul>
  11. 11. Burning Flame-Resistant 100% Polyester <ul><li>This fabric burned and curled up. The flames were bumpy, then stopped after a few seconds. It dripped a little before it stopped burning. </li></ul>
  12. 12. Burning Wool <ul><li>Wool burned out quickly with no dripping. It smelled really horrible like burning hair. </li></ul>
  13. 13. Cotton/Polyester Blends <ul><li>These fabrics burned very easily, like cotton and they dripped the hot liquid, like polyester. </li></ul>
  14. 14. Conclusions <ul><li>Flame resistant fabrics are worth buying because they don’t burn very easily or long so they are safer </li></ul><ul><li>Wool burned the least but is usually itchy to wear </li></ul><ul><li>Cotton/Poly blend would be the worst to have catch fire because it burns easily and drips hot liquid which would burn you even more </li></ul>

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