Tuesday, October 20, 2009

Plastic - By: Kaitlyn Apollo

Plastic
The first man-made plastic was created by Alexander Parkes who publicly demonstrated it at the 1862 Great International Exhibition in London. The material called Parkesine was an organic material derived from cellulose that once heated could be molded, and retained its shape when cooled.


Alexander Parkes
Born: 29 December 1813, Birmingham, Warwickshire, England
Died: 29 June 1890, West Dulwich, nr London, England


Plastic is the general common term for a wide range of synthetic or semisynthetic organic amorphous solid materials suitable for the manufacture of industrial products. Plastics are typically polymers of high molecular mass, and may contain other substances to improve performance and/or reduce costs.




The word derives from the Greek πλαστικός (plastikos) meaning fit for molding, and πλαστός (plastos) meaning molded.






Timeline - Beginning of the Plastic Era with Semi Synthetics
· 1839 -
Polystyrene or PS discovered - Eduard Simon
· 1862 - Parkesine - Alexander Parkes
· 1863 - Cellulose Nitrate or Celluloid - John Wesley Hyatt
· 1872 -
Polyvinyl Chloride or PVC - first created by Eugen Baumann
· 1894 -
Viscose Rayon - Charles Frederick Cross, Edward John Bevan


Timeline - Thermosetting Plastics and Thermoplastics
· 1908 -
Cellophane ® - Jacques E. Brandenberger
· 1909 - First true plastic Phenol-Formaldehyde tradenamed
Bakelite - Leo Hendrik Baekeland
· 1926 -
Vinyl or PVC - Walter Semon invented a plasticized PVC.
· 1927 - Cellulose Acetate
· 1933 -
Polyvinylidene chloride or Saran also called PVDC - accidentally discovered by Ralph Wiley, a Dow Chemical lab worker.
· 1935 - Low-density polyethylene or LDPE - Reginald Gibson and Eric Fawcett
· 1936 - Acrylic or Polymethyl Methacrylate
· 1937 -
Polyurethanes tradenamed Igamid for plastics materials and Perlon for fibers. - Otto Bayer and co-workers discovered and patented the chemistry of polyurethanes
· 1938 -
Polystyrene made practical
· 1938 - Polytetrafluoroethylene or PTFE
tradenamed Teflon - Roy Plunkett
· 1939 -
Nylon and Neoprene considered a replacement for silk and a synthetic rubber respectively Wallace Hume Carothers
· 1941 -
Polyethylene Terephthalate or Pet - Whinfield and Dickson
· 1942 - Low Density Polyethylene
· 1942 -
Unsaturated Polyester also called PET patented by John Rex Whinfield and James Tennant Dickson
· 1951 -
High-density polyethylene or HDPE tradenamed Marlex - Paul Hogan and Robert Banks
· 1951 -
Polypropylene or PP - Paul Hogan and Robert Banks
· 1953 -
Saran Wrap introduced by Dow Chemicals.
· 1954 -
Styrofoam a type of foamed polystyrene foam was invented by Ray McIntire for Dow Chemicals
· 1964 - Polyimide
· 1970 -
Thermoplastic Polyester this includes trademarked Dacron, Mylar, Melinex, Teijin, and Tetoron
· 1978 - Linear Low Density Polyethylene
· 1985 - Liquid Crystal Polymers

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