Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 6/4/2004
Publication Date: 8/22/2004
Citation: Hojillaevangelist, M.P. 2004. Development of soy protein-based foamed plywood glues[abstract]. American Chemical Society. p.231.
Technical Abstract: Several commercially available soy flours and soy protein concentrates were evaluated as replacement for animal blood protein in plywood glues for foam extrusion. Soy protein-based standard glue mixes showed excellent foaming and adhesive qualities, but did not have the ability to re-foam, which is important during plywood manufacture. To improve re-foaming capability, the formulations were modified by increasing the quantities of soy flour or concentrate so that they provided 3.48 g protein/100 g of glue mix, the amount of protein contributed by animal blood when it was used as an extender in foamed glue. All the modified glues containing soy flour or concentrate had good re-foaming properties and adhesive strengths that were at least equal to that of the control glue. Simple cost analysis also indicated that the modified formulations were cheaper than the current blood-based glue when soy flour is used.