World Library  
Flag as Inappropriate
Email this Article
 

Styrofoam

Styrofoam is a trademarked brand of closed-cell extruded polystyrene foam currently made for thermal insulation and craft applications. It is owned and manufactured by The Dow Chemical Company.[1]

In the cyanoacrylate, and the propellants and solvents of spray paint. Another tradename for polystyrene foam is thermacol, originated by BASF for expanded polystyrene.

Contents

  • History 1
  • Uses 2
  • Environmental effects 3
    • Styrofoam-eating worms 3.1
  • See also 4
  • References 5
  • External links 6

History

In 1941, researchers in Dow's Chemical Physics Lab found a way to make foamed polystyrene. Led by

  • Dow Chemical Company Styrofoam page

External links

  1. ^ a b "STYROFOAM™ - It's Not a Cup" Dow Chemical Company
  2. ^ Boundy, Ray H.; Amos, J. Lawrence (1991). A History of the Dow Chemical Physics Lab. New York: Marcel Dekker, Inc. pp. 117–128.  
  3. ^ "How is Polystyrene (styrofoam) made?". StyroMelt. Retrieved 2012-06-23. 
  4. ^ Dow Announces New Technology for STYROFOAM Insulation
  5. ^ "STYROFOAM Brand Foam Crafts". Retrieved 2010-12-31. 
  6. ^ "Geotechnical applications of Styrofoam". Dow Chemical. Retrieved 2009-10-28. 
  7. ^ "Engineering considerations when building on permafrost". Retrieved 2007-08-30. 
  8. ^ http://www.epa.gov/chemfact/styre-sd.pdf
  9. ^ http://www.inchem.org/documents/iarc/vol82/82-07.html
  10. ^ http://www.highcountryconservation.org/pdf/The%20Facts%20on%20Styrofoam.pdf
  11. ^ http://www.msnbc.com/msnbc/new-york-citys-styrofoam-ban-goes-effect
  12. ^ http://news.stanford.edu/pr/2015/pr-worms-digest-plastics-092915.html

References

See also

Recently, researches discovered that mealworms, the larvae form of the darkling beetle, could digest and subsist healthily on a diet of Styrofoam.[12] About 100 mealworms could consume between 34 and 39 milligrams of Styrofoam in a day. The droppings of mealworm were found to be safe for use as soil for crops.

Styrofoam-eating worms

The EPA and International Agency for Research on Cancer have determined styrene as a possible human carcinogen.[8][9] The National Bureau of Standards Center for Fire Research found 57 chemical by-products released during the combustion of expanded polystyrene foam.[10] From July 1 2015 the New York City is the largest city in America to prohibit the sale, possession and distribution of single-use polystyrene foam.[11]

Environmental effects

Styrofoam can be used under roads and other structures to prevent soil disturbances due to freezing and thawing.[6][7]

Dow also produces Styrofoam as a structural material for use by florists and in craft products.[5] Dow insulation Styrofoam has a distinctive blue color; Styrofoam for craft applications is available in white and green.

Styrofoam has since found a variety of uses. Dow produces Styrofoam building materials, including varieties of insulated sheathing and pipe insulation. The claimed R-value of Styrofoam insulation is five per inch.[4]

Styrofoam is composed of 98% air, making it lightweight and buoyant.[3] Because of its insulating properties and buoyancy, it was adopted in 1942 by the United States Coast Guard for use in a six-person life raft.

Uses

Dow acquired exclusive rights to use Munters' patents and found ways to make large quantities of extruded polystyrene as a closed cell foam that resists moisture. [2]

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.