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Friday, 20 September 2019
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Raw materials & technologies, Science today - coatings tomorrow

Replacing formaldehyde-based adhesives

Monday, 14 January 2013

Results of a new study show that dry blood powder based adhesive can be a renewable and formaldehyde-free alternative for wood industry.

Paper presents a dry blood powder based adhesive as a free formaldehyde alternatve for wood industry / Source: Maren Wischnewski, Fotolia

Paper presents a dry blood powder based adhesive as a free formaldehyde alternatve for wood industry / Source: Maren Wischnewski, Fotolia

The European Coatings CONFERENCE "Biobased Adhesives" will take place on 21 and 22 February 2013 in Dusseldorf, Germany. Daniela B. García, Instituto Nacional de Tecnología Industrial, Argentina will present an environmentally friendly adhesive based on a secondary product of food industry, dry blood powder (DBP). This adhesive is aimed to replace formaldehyde-based products such as urea-formaldehyde (UF) resins in the production of wood composites.

This paper compares adhesion between UF resins and DBP adhesive in pine wood. Comparison shows that both UF resins and DBP adhesive had similar dry shear strength adhesion. These studies revealed that DBP adhesive could be a zero-emission formaldehyde alternative for wood industry.

The UF resins are frequently used in wood industry because of its low cost and high performance. However formaldehyde, which is a human carcinogen and not renewable, is emitted during the production and the use of wood composites.

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