Optimization of the Synthesis of Urea-Formaldehyde Resins using Response Surface Methodology

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Joao M Ferra (Author) Other; Pedro C Mena (Author) Other; Jorge Martins (Author) Other; Adelio M Mendes (Author) FEUP; Mario Rui N Costa (Author) FEUP; Fernao D Magalhaes (Author) FEUP; Luísa Carvalho (Author) FEUP

Journal

Title: Journal of Adhesion Science and Technology

Vol. 24 No. 8

Pages: 1455-1472

ISSN: 0169-4243

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 22 Citations

ISI Web of Science

Scopus - 24 Citations

COMPENDEX

INSPEC

Scientific classification

FOS: Engineering and technology > Chemical engineering

Other information

Authenticus ID: P-003-BGX

DOI: 10.1163/016942410x501043

Abstract (EN): In the near future, companies will face the need to produce low formaldehyde emission resins, i.e., not above the emission level of natural wood. However, for producing this new generation of urea-formaldehyde resins (UF), it is necessary to optimize the synthesis process. This work describes an optimization procedure for UF resin synthesis, following an alkaline-acid process, focusing on the conditions of the condensation step. A design of experiments methodology was employed to optimize the 3 selected factors (number of urea additions, time span between urea additions, and condensation pH), in order to produce particleboards with maximum internal bond strength and minimum formaldehyde release. The condensation pH played a significant role in increasing the Internal Bond (IB) strength and reducing the Formaldehyde Emission (FE). The sequential addition of urea also has a noticeable influence on resin performance. Optimum conditions for production of UF resins have been proposed and tested by the response surface methodology using the desirability function. (C) Koninklijke Brill NV, Leiden, 2010

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 18