Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Blowing Agent

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_1429

n (foaming agent) A substance that, alone or in combination with other substances, is capable of producing a cellular structure in a plastic or rubber mass. Thus, the term includes compressed gases that expand when pressure is released, soluble solids that leave pores when leached out, liquids that develop cells when they vaporize, and chemical agents that decompose or react under the influence of heat to form a gas. Liquid foaming agents include certain aliphatic and halogenated hydrocarbons, low-boiling alcohols, ethers, ketones, and aromatic hydrocarbons. The chemical blowing agents range from simple salts such as ammonium or sodium bicarbonate to complex nitrogen-releasing agents, of which azobisformamide (ABFA) is an important example.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA