Difference between revisions of "Novolac"
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== Description == | == Description == | ||
| − | A thermoplastic [http://cameo.mfa.org/materials/fullrecord.asp?name=phenol | + | A thermoplastic [http://cameo.mfa.org/materials/fullrecord.asp?name=phenol%20formaldehyde%20resin phenol formaldehyde resin] made in a two step process. The first step involves mixing [http://cameo.mfa.org/materials/fullrecord.asp?name=formaldehyde formaldehyde] with excess [http://cameo.mfa.org/materials/fullrecord.asp?name=phenol phenol] to form a brittle, thermoplastic [http://cameo.mfa.org/materials/fullrecord.asp?name=phenolic%20resin phenolic resin]. Novolac is then crosslinked to produce an insoluble, thermoset material. This is done by reaction with epichlorohydrin, hexamethylenetetramine (hexa), or p-formaldehyde. Novolac has been made into fibers (novoloid) and used a high strength adhesive (Novolac® DEN 438). |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | novolac; novolak; novoloid fiber; phenol formaldehyde resin; | + | novolac; novolak; novoloid fiber; phenol formaldehyde resin; Novolac®; Kynol® |
== Other Properties == | == Other Properties == | ||
| Line 13: | Line 13: | ||
== Authority == | == Authority == | ||
| − | * | + | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 297 |
| − | * | + | * 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 |
| − | * | + | * Marjory L. Joseph, ''Introductory Textile Science'', Holt, Rinehart and Winston, Fort Worth, TX, 1986 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 06:54, 24 July 2013
Description
A thermoplastic phenol formaldehyde resin made in a two step process. The first step involves mixing formaldehyde with excess phenol to form a brittle, thermoplastic phenolic resin. Novolac is then crosslinked to produce an insoluble, thermoset material. This is done by reaction with epichlorohydrin, hexamethylenetetramine (hexa), or p-formaldehyde. Novolac has been made into fibers (novoloid) and used a high strength adhesive (Novolac® DEN 438).
Synonyms and Related Terms
novolac; novolak; novoloid fiber; phenol formaldehyde resin; Novolac®; Kynol®
Other Properties
Soluble in ethanol.
Authority
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 297
- 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
- Marjory L. Joseph, Introductory Textile Science, Holt, Rinehart and Winston, Fort Worth, TX, 1986