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Requested Product

Title: Soy Adhesive-Moisture Interactions

Source: In: Wood Adhesives 2009: Session 4A - Bio-Based, pp. 270-274; Forest Products Society, c2010. 1 CD-ROM. ISBN 978-1-892529-57-2. FPS Proceedings no. 7216-09. 2010

Author(s)Hunt, Chris; Wescott, Jim; Lorenz, Linda

Publication Year: 2010  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4707-2A

Abstract: One barrier to a broader use of soybean-based adhesives is their sensitivity to water. When using high levels of the dispersion aids urea and glycerin, we have observed an increase in wet bond performance with adhesives made using soy concentrate over those using soy flour when both contain a polyamidoamine-epichlorohydrin (PAE) crosslinking agent. We then investigated the effect of different soy flour components on wet bond performance in these systems. It appears that, in the quantities present in soy flour, the low molecular weight (MW) carbohydrates have a larger impact on wet performance than low-MW peptides when dispersion aids are present. The data presented here suggests that caution should be used when extrapolating results of protein studies to products made with soy flour.

Keywords: Soy flour, soybean glue, moisture, adhesives, testing, adhesion, glue, gluing, urea, dispersion, glycerin, carbohydrates, peptides, epichlorohydrin, proteins, soy proteins, ethanol, plywood, wood moisture, moisture content, bonding, bonding strength, glues, gluing, polyamidoamine, performance testing, soy concentrate

Publication Review Process: Non-Refereed (Other)

File size: 149 kb(s)

Date posted: 09/23/2011
RITS Product ID: 36577
Current FPL Scientist associated with this product
Hunt, Christopher G.
Research Chemist
  

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