Urea–formaldehyde reaction system. An experimental investigation

✍ Scribed by A. F. Price; A. R. Cooper; A. S. Meskin

• Publisher: John Wiley and Sons
• Year: 1980
• Tongue: English
• Weight: 492 KB
• Volume: 25
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1980.070251116

✦ Synopsis

Batch production of urea-formaldehyde resins at temperatures up to 100°C takes several hours for completion. Reduction of the batch time may be possible with the higher reaction rates obtained at higher temperatures and increased pressures. In order to investigate this possibility, an experimental technique to obtain the necessary kinetic data, without loss of formaldehyde by evaporation, was developed. The results are compared with earlier low-temperature data extrapolated to the present range of interest. The results were interpreted on the basis of the successive reaction of two or three molecules of formaldehyde with a molecule of urea.