TITLE:
Characteristics and Mechanicals Potentials of Wood Adhesives Manufactured with Grasses’ Lignins
AUTHORS:
Lionel Tapsia Karga, Danwe Raidandi, Noel Konai, Antonio Pizzi, Lucien Meva’a
KEYWORDS:
Lignins, Sorghum bicolor and Andropogon gayanus, Structures, Adhesives, Internal Bond, Antioxydants
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.7 No.1,
January
28,
2019
ABSTRACT: In order to manufacture environmentally friendly particle boards and enhance local resources, the lignins of Sorghum bicolor and Andropogon gayanus characterized using RMN 13C and MALDI TOF have the same structures. They contents Guaiacyl (G), Syringyl (S), p-hydroxyphenylpropane (H) and functional groups of phenols, flavonoids and secondary alcohols. The total phenol content determinated using Folin-Ciocalteu reagent is respectively 20.97 and 15.42 mg eqgallic acid/g of extract. The power of their adhesives is different. The Internal Bond (IB) of particleboards manufactured with these adhesives are respectively 0.37 MPa and 0.41 MPa. These lignins can be used as antioxydants.