Investigating the use of peanut meal: a potential new resource for wood adhesives

This study was conducted to evaluate the potential of peanut meal (PM) to produce plywood adhesives via sodium dodecyl sulfate (SDS) and ethylene glycol diglycidyl ether (EGDE) modification. Five-ply plywood specimens were fabricated to measure water resistance. The physical properties, cross section, thermal behavior, and functional groups of the resultant adhesives were characterized in detail. The results showed using SDS and EGDE in the adhesive formulation greatly improved the water resistance of the resultant adhesive by 90% and met the interior use plywood requirements. This improvement was attributed to three reasons: (1) SDS broke the structure of the PM protein and exposed inner active groups, which reacted with EGDE and formed a dense network to improve the water resistance of the resultant adhesive; (2) EGDE decreased the adhesive viscosity and led to the adhesive easily penetrating into wood and forming more interlocks; (3) the adhesive with SDS and EGDE created a smooth surface of the cured adhesive to prevent moisture intrusion. Additionally, compared with the peanut meal-based control adhesives, the viscosity of the cured adhesive was reduced by 95.8% to 24140 mPa s, which further demonstrated that peanut meal has favorable potential as an alternative adhesive material for plywood.

[1]  Q. Gao,et al.  Effects of heat treatment on wet shear strength of plywood bonded with soybean meal-based adhesive , 2015 .

[2]  Jiuping Rao,et al.  Effect of Preparation Conditions on Bonding Strength of Soy-based Adhesives via Viscozyme L Action on Soy Flour Slurry , 2014 .

[3]  Q. Gao,et al.  Properties of soybean-flour-based adhesives enhanced by attapulgite and glycerol polyglycidyl ether , 2014 .

[4]  Zhangkang Wu,et al.  Cross-linked soy-based wood adhesives for plywood , 2014 .

[5]  Q. Gao,et al.  Glycidyl Methacrylate Grafted onto Enzyme-Treated Soybean Meal Adhesive with Improved Wet Shear Strength , 2013 .

[6]  X. Sun,et al.  Soy proteins as plywood adhesives: formulation and characterization , 2013 .

[7]  M. Hojilla-Evangelista.  Evaluation of corn germ protein as an extender in plywood adhesive , 2013 .

[8]  Qingjun Zhu,et al.  Determination of the domain structure of the 7S and 11S globulins from soy proteins by XRD and FTIR. , 2013, Journal of the science of food and agriculture.

[9]  Li Yongfeng,et al.  Effect of polymer in situ synthesized from methyl methacrylate and styrene on the morphology, thermal behavior, and durability of wood , 2013 .

[10]  X. Sun,et al.  Physicochemical properties of soy protein adhesives modified by 2-octen-1-ylsuccinic anhydride , 2013 .

[11]  S. Shi,et al.  Soybean meal-based adhesive enhanced by MUF resin , 2012 .

[12]  M. Iman,et al.  Effect of crosslinker and nanoclay on starch and jute fabric based green nanocomposites. , 2012, Carbohydrate polymers.

[13]  E. Malmström,et al.  Wheat gluten fractions as wood adhesives—glutenins versus gliadins , 2012 .

[14]  Kaichang Li,et al.  A new formaldehyde-free wood adhesive from renewable materials , 2011 .

[15]  Johan P.M. Sanders,et al.  Jatropha seed protein functional properties for technical applications , 2011 .

[16]  X. Sun,et al.  Soy Protein Adhesive Blends with Synthetic Latex on Wood Veneer , 2011 .

[17]  Wen‐Jau Lee,et al.  Curing and thermal properties of copolymer epoxy resins prepared by copolymerized bisphenol-A and epichlorohydrin with liquefied Dendrocalamus latiflorus , 2010 .

[18]  Qiang Wang,et al.  Comparative studies on the functional properties of various protein concentrate preparations of peanut protein , 2009 .

[19]  Z. Zhong,et al.  Plywood Adhesives by Blending Soy Protein Polymer with Phenol-Formaldehyde Resin , 2007 .

[20]  M. Kuo,et al.  Comparison of protein-based adhesive resins for wood composites , 2006, Journal of Wood Science.

[21]  V. Popa,et al.  Phosphorylation of polysaccharides: New results on synthesis and characterisation of phosphorylated cellulose , 2006 .

[22]  Keqiang Wu,et al.  Isolation of peanut genes encoding arachins and conglutins by expressed sequence tags. , 2005 .

[23]  Kaichang Li,et al.  Investigation of soy protein-kymene® adhesive systems for wood composites , 2004 .

[24]  V. Choudhary,et al.  Enzymatically-modified soy protein part 2: adhesion behaviour , 2004 .

[25]  V. Choudhary,et al.  Adhesives and plastics based on soy protein products , 2002 .

[26]  Z. Zhong,et al.  Adhesion strength of sodium dodecyl sulfate-modified soy protein to fiberboard , 2001 .

[27]  J. C. Arthur,et al.  Cottonseed and peanut meal glues. Resistance of plywood bonds to chemical reagents , 1952 .