Nanocellulose reinforced polyurethane obtained from hydroxylated soybean oil

Baltic Polymer Symposium 2015

材料科学;化学

Ivdre, A.^1,2 ; Mucci, V.^3 ; Stefani, P.M.^3 ; Aranguren, M.I.^3 ; Cabulis, U.^1

Polymer Laboratory, Latvian State Institute of Wood Chemistry, Riga

LV- 1006, Latvia^1

Riga Technical University, Faculty of Material Science and Applied Chemistry, Institute of Polymer Materials, P. Valdena Street 3, Riga

LV- 1048, Latvia^2

Institute of Research in Materials Science and Technology (INTEMA), National University of Mar Del Plata-National Research Council (CONICET), Mar del Plata, Argentina^3

关键词: Cellulose nano-crystals;    Diisocyanates;    Macrocrystalline;    Polyurethane composites;    Polyurethane matrix;    Tertiary amine;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/111/1/012011/pdf
DOI  :  10.1088/1757-899X/111/1/012011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this research, cellulose nanocrystals were successfully obtained from macrocrystalline cellulose and dispersed in a polyurethane matrix Cellulose nanocrystals were characterized by dynamic light scattering. Polyurethane matrix was prepared from hydroxylated soybean oil, tertiary amine catalyst and polymeric diphenyl diisocyanate. Nanocellulose reinforced polyurethane composites were successfully prepared with different concentration and good dispersion of cellulose nanocrystals. Thermal properties and tensile strength of the resulting films were evaluated and dynamic mechanical analysis was carried out. The glass transition temperature of the nanocomposites increased slightly by increasing concentration of nanocellulose. The highest tensile strength was found for the nanocomposite with 1 wt% of cellulose nanocrystals.