BoPET

Metallized boPET film, 32 layers of ~14 μm thickness each

BoPET (biaxially oriented polyethylene terephthalate) is a polyester film made from stretched polyethylene terephthalate (PET) and is used for its high tensile strength,[1] chemical stability,[1] dimensional stability,[2] transparency[1] reflectivity, and electrical insulation.[1]. When metallized, it has [3] gas and moisture barrier properties,[3] The film is "biaxially oriented", which means that the polymer chains are oriented parallel to the plane of the film, and therefore oriented in two axes.[3] A variety of companies manufacture boPET and other polyester films under different brand names. In the UK and US, the best-known trade names are Mylar, Melinex, Lumirror and Hostaphan.[4] It was the first biaxially oriented polymer to be manufactured on a mass commercial scale.[5]

  1. ^ a b c d Cite error: The named reference :0 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference :1 was invoked but never defined (see the help page).
  3. ^ a b c Drobny, Jiri George (2014-05-30). Handbook of Thermoplastic Elastomers. Elsevier. ISBN 978-0-323-22168-9.
  4. ^ Mark T. DeMeuse (2011). Biaxial Stretching of Film: Principles And Applications. Elsevier. p. 48. ISBN 9780857092953.
  5. ^ Jenkins, Wilmer A.; Osborn, Kenton R. (1992-09-25). Plastic Films: echnology and Packaging Applications. CRC Press. ISBN 978-0-87762-843-9.