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Substitution of CFCs in flexible polyurethane foams: state of the art.

Author(s) : CREYF H.

Type of article: Periodical article, Review

Summary

The first reductions in CFC use for foam blowing were brought about by CFC recovery systems. Further reduction must come from substitute foaming agents. In flexible polyurethane foam carbon dioxide is the main substitute, but used alone will produce only certain foam densities. CFCs are added to widen the range. Methylene chloride is the most likely substitute, but its TLV value is between 50 and 100 ppm compared to 1000 ppm for CFC11. In the USA methylchloroform and acetone have been tried, but acetone is inflammable. During 1990, EUROPUR members reduced CFC use by more than 50% of the 1986 quantity. D.W.H.

Details

  • Original title: Substitution of CFCs in flexible polyurethane foams: state of the art.
  • Record ID : 1992-2661
  • Languages: English
  • Source: UNEP, Meet. Paris - 4 p.
  • Publication date: 1992/01/27
  • Document available for consultation in the library of the IIR headquarters only.

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