Natural additives for reducing formaldehyde emissions in urea-formaldehyde resins

• Type: Article in International Conference Proceedings Book
• Date: 2015-07-15

Authors

Luísa Carvalho (Author) FEUP; Flávio Pereira (Author) Other; Nádia Paiva (Author) Other; João Ferra (Author) Other; Jorge Manuel Martins (Author) FEUP; Fernão D. Magalhães (Author) FEUP

Conference proceedings International

Title: 6th Workshop on Green Chemistry and Nanotechnologies in Polymer Chemistry

Pages: 157-159

6th Workshop on Green Chemistry and Nanotechnologies in Polymer Chemistry

Bragança, Portugal, 15 -17 July 2015

Indexing

ISI Web of Science

Scopus

Other information

DOI: 10.7569/JRM.2015.634128

Abstract (EN): This work studies the use of soy protein as a natural formaldehyde scavenger in wood particleboard production. The protein is incorporated in two forms: a) as a powder, during the blending process of wood particles with urea-formaldehyde binder resin, and b) as an aqueous solution, added at different times during resin synthesis. Analysis of variance (ANOVA) was used to evaluate the signifi cance level of two effects (amount of added soy and time of addition) on internal bond strength, thickness swelling, and formaldehyde content of the resulting panels. The results showed that soy protein can contribute to decrease the formaldehyde content of particleboard panels. Addition in powder form or in solution during the resin condensation step leads to the highest formaldehyde reduction, without signifi cantly affecting the physical properties of the panels.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6