Wood adhesives are needed for the production of wood composites. Because of environmental regulations regarding emission of organic compounds including formaldehyde, the use of agro-based biopolymers is highly desirable as alternative wood adhesives. The key requirements for biopolymers include acceptable cost, adhesive strength, and water resistance. In this work, we have shown that cottonseed protein in combination with appropriate additives exhibits distinct advantages in wood adhesive formulations. The advantageous combinations include cottonseed protein/soy protein blends, cottonseed protein/polysaccharide blends, and cottonseed protein/modifier mixtures. For example, selected modifiers can significantly increase the adhesive strength and the water resistance of cottonseed protein formulations. Through the use of either the blends or the modifiers, the performance/cost ratio for cottonseed protein-based adhesives can be enhanced.

Novel cottonseed protein-based wood adhesives

254th National Meeting (2017)

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