Interior-grade adhesives, particleboard

In this chapter, the development of a thermosetting adhesive from soda bagasse lignin is described. The research has concentrated on the development of interior-grade adhesives for particleboard. The local market for exterior boards is smaller than that for the interior panels, and adhesives for exterior boards are already covered by an excellent range of tannin-based adhesives. 

Articles made from amino resins are water clear, hard, and strong, but they can crack. They have good electrical properties, and they have better colorability than phenolic resins. Amino resins are used as adhesives for plywood and particleboard but only in interior grades. They have low weather resistance and deteriorate when exposed to sun, heat, cold, and moisture. 

Adhesives for wood particleboards were obtained giving results satisfying the relevant standard specifications for interior grade wood boards and the following were found ... 

Major uses for mea formaldehyde adhesives are in the manufacture of particleboard and interior grade plywood. 

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