Polyvinyl formal

Description

A Thermoplastic resin made by the condensation of Polyvinyl alcohol with Formaldehyde. Polyvinyl formal is a colorless, flexible tough solid. It can be molded, extruded, or cast and is resistant to greases, oils, and alkalis. It is used as a structural adhesive for bonding aircraft components.

FTIR

Synonyms and Related Terms

poly(vinyl formal); polivinilformaldehido (Esp.); Formvar; polyvinyl acetal

Physical and Chemical Properties

• Soluble in glacial acetic acid, Cellosolve acetate, chloroform, diacetone alcohol, phenol, pyridine, THF, toluene.
• Resistant to alkalis, greases and oils.
• Density = 1.3 g/ml

Resources and Citations

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 848

• 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

• Conservation Materials Ltd., Catalog