Characteristics and Mechanicals Potentials of Wood Adhesives Manufactured with Grasses’ Lignins  

作　　者：Lionel Tapsia Karga Danwe Raidandi Noel Konai Antonio Pizzi Lucien Meva’a 

机构地区：[1]Laboratory of Mechanics and Civil Engineering, National Advanced School of Engineering, University of Yaoundé 1, Yaoundé, Cameroon [2]Department of Mechanical Engineering Petroleum and Gas, Faculty of Mines and Petroleum Industries, University of Maroua, Kaélé, Cameroon [3]Departement of Mechanical Engineering and Materials, National Advanced School of Engineering, University of Maroua, Maroua, Cameroon [4]ENSTIB-LERMAB, University of Lorraine, Epinal, France

出　　处：《Journal of Materials Science and Chemical Engineering》2019年第1期35-47,共13页材料科学与化学工程（英文）

摘　　要：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.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.

关 键 词：LIGNINS SORGHUM BICOLOR and Andropogon gayanus Structures Adhesives INTERNAL BOND Antioxydants 

分 类 号：O6[理学—化学]