Biobased composites composed of natural non-wood fibers such as hemp and other vegetable fibers and bonded with natural matrix resins are presented, together with their performance and their characterization. Tannin-hexamine, tanninresorcinol- aldehyde, tannin-furfuryl alcohol, and epoxidized vegetable oils are presented as natural biobased matrix resins.
Wood welding is a technique that has been used for bonding wood to wood without an adhesive. Bonding is fast, a matte of second, with good mechanical performance of the joint. The chapter illustrates advantages, limits and characteristics of the use of this technique.