Polyvinyl formal: Difference between revisions

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== Description ==


A [http://cameo.mfa.org/materials/fullrecord.asp?name=thermoplastic thermoplastic] resin made by the condensation of [http://cameo.mfa.org/materials/fullrecord.asp?name=polyvinyl alcohol polyvinyl alcohol] with [http://cameo.mfa.org/materials/fullrecord.asp?name=formaldehyde formaldehyde]. Polyvinyl formal is a colorless, flexible tough solid. It can be molded, extruded, or cast and is resistant to [http://cameo.mfa.org/materials/fullrecord.asp?name=grease greases], [http://cameo.mfa.org/materials/fullrecord.asp?name=oil oils], and [http://cameo.mfa.org/materials/fullrecord.asp?name=alkali alkalis]. It is used as a structural adhesive for bonding aircraft components.
== Synonyms and Related Terms ==
poly(vinyl formal); polivinilformaldehido (Esp.); Formvar; polyvinyl acetal
[[[SliderGallery rightalign|aaiP_VINYLFORMAL.jpg~FTIR]]]
== Other Properties ==
Soluble in glacial acetic acid, Cellosolve acetate, chloroform, diacetone alcohol, phenol, pyridine, THF, toluene.Resistant to alkalis, greases and oils.
{| class="wikitable"
|-
! scope="row"| Density
| 1.3
|}
== Authority ==
* G.S.Brady, G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 848
* Theodore J. Reinhart, Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988
* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
* Conservation Materials Ltd., Conservation Materials Ltd., Catalog
[[Category:Materials database]]

Revision as of 08:54, 24 July 2013