出典:Wiktionary
出典:『Wiktionary』 (2025/02/05 19:19 UTC 版)
urea-formaldehyde (countable and uncountable, plural urea-formaldehydes)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/16 15:16 UTC 版)
Urea-formaldehyde, also known as urea-methanal, named so for its common synthesis pathway and overall structure, is a non-transparent thermosetting resin or plastic, made from urea and formaldehyde heated in the presence of a mild base such as ammonia or pyridine. These resins are used in adhesives, finishes, MDF, and molded objects.