pH control of the condensation reaction and its effect on the properties of formaldehyde/urea resins

M. Szesztay, Zs László‐Hedvig, C. Takács, E. Gács‐Baitz, P. Nagy, F. Tüdős

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The conditions of the preparation of formaldehyde/urea (F/U) resins have been supervised with the aim to reduce formaldehyde emission by influencing the ratio of methylene/dimethylene‐ether‐bridge linkages in the product. The most crucial point of this task is to keep the pH values of the reacting mixtures on the required level. The effect of formic acid, unevitably present in industrial formaldehyde solutions, was neutralized by applying a new buffer system, containing boric acid and ethylene glycol.

Original languageEnglish
Pages (from-to)79-91
Number of pages13
JournalDie Angewandte Makromolekulare Chemie
Volume215
Issue number1
DOIs
Publication statusPublished - Feb 1994

ASJC Scopus subject areas

  • Materials Science(all)

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