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Sunday, 22 September 2019
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Raw materials & technologies, Technologies, Powder coatings

Solving the green PET problem

Monday, 31 March 2014

Researchers from Italy developed a green material by blending recycled PET and isosorbide, and the bio-based succinic acid.

The correct amounts of isosorbide and succinic acid lead to interesting powder coatings Source: Allyson Ricketts-Fotolia.com

The correct amounts of isosorbide and succinic acid lead to interesting powder coatings Source: Allyson Ricketts-Fotolia.com

A kinetic study has been performed in order to determine the best catalyst for poly(ethylene terephthalate) (PET) depolymerisation with isosorbide and for the subsequent polycondensation of PET oligomers with succinic acid.

Properties are good for powder coatings

Using the correct amounts of isosorbide and succinic acid it is possible to obtain polymers which well fit the properties (glass transition temperature and end-group composition) necessary for powder coating applications. The coating produced using this new environmentally friendly approach presented applicative properties similar, and in some cases superior, to those of a commercial coating obtained from non-renewable resources.

The study is published in: Green Chemistry, Issue 4, 2014.

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