Blowing agent
Description
An additive that decomposes to form a gas. Some foaming agents, such dinitroso compounds (dinitroso pentamethylene tetramine) and hydrazides (benzene sulfonyl hydrazide) generate nitrogen upon heating. They are used in fire extinguishers and to produce foamed plastics from [[Polyethylene|polyethylene]], silicone, Epoxy, and vinyl resins. Other types of foaming agents, such as bicarbonates, produce carbon dioxide. In Ethafoal, isobtene is used as a blowing agent along with glucerol monostearate as a permeation control agent (Williams 2019).
Synonyms and Related Terms
blowing agent; foaming agents; agent moussant (Fr.)
Sources Checked for Data in Record
- R. Scott Williams, ‘Plastic Storage Products’ In ‘Preventive Conservation: Collection Storage’ Lisa Elkin and Christopher A. Norris (eds.), Society for the Preservation of Natural History Collections, New York. 2019.
- Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000