Polyurethane Synthesis from Sugarcane Bagasse Organosolv and Kraft Lignin

Sugarcane bagasse (SCB) was subjected to a single-step fractionation and hydrolysis reaction in the presence of various organic solvents. The reaction was performed at 170 °C for 3 h when sodium hydroxide was used as catalyst. The results showed that suitable solvents significantly enhanced the yiel...

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Bibliographic Details
Published in:Key Engineering Materials 2015-08, Vol.659, p.527-532
Main Authors: Sakdaronnarong, Chularat, Laosiripojana, Navadol, Srimarut, Nattawee
Format: Article
Language:English
Subjects:
Bagasse
Fractionation
Hydrolysis
Liquefied
Polyols
Polyurethane resins
Sodium hydroxide
Solvents
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Summary:Sugarcane bagasse (SCB) was subjected to a single-step fractionation and hydrolysis reaction in the presence of various organic solvents. The reaction was performed at 170 °C for 3 h when sodium hydroxide was used as catalyst. The results showed that suitable solvents significantly enhanced the yield of lignin fractionation and simultaneous hydrolysis reaction took place indicated by an increase of hydroxyl groups in lignin molecules. Lignin-based polyurethane (LPU) from SCB organosolv lignin polyols had relatively better mechanical and thermal resistant properties compared to LPU from liquefied Kraft lignin from pulp and paper industry.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.659.527