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    Soy-based glues were very popular early in the 20th century. These adhesives were low cost and allowed for excellent performance in plywood panels as long as they were kept dry. These adhesives were quickly supplanted by lower cost, better performing petroleum-based resins in the middle half of the century. With the recent increase in the price of petroleum, soy-based resins may again be considered attractive alternatives if some of their previous performance limitations can be overcome. This paper provides a detailed look into a new soy-based adhesive system that offers board manufacturers a lower cost alternative resin system with no drop-off in final board performance or added production cost. The soy/phenol ratio can be as high as 1/1 with no drop- off in performance. The soy-based resin is considered to be a copolymer of soy and phenol formaldehyde. The initial target application is in the face section of oriented strandboard.

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    Wescott, James M.; Frihart, Charles R. 2004. Competitive soybean flour/phenol-formaldehyde adhesives for oriented strandboard. 38th International Wood Composites Symposium Proceedings, April 6–8, 2004. Pullman, Wash. : Washington State University, c2004: Pages 199-206


    OSB, oriented strandboard, soybean flour adhesives, phenol-formaldehyde adhesives

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