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Effect of lignin derivatives in the bio-polyols from microwave liquefied bamboo on the properties of polyurethane foams

Formally Refereed

Abstract

Bamboo residues were subjected to a microwave-assisted liquefaction process for the production of crude bio-polyols (CBP). The fractionated bio-polyols (FBP) were obtained by the removal of lignin derivatives from the crude bio-polyols (CBP) using a simple method. Polyurethane (PU) foams were successfully prepared from both CBP and FBP. The object of this study was to evaluate the effect of lignin derivatives in bio-polyols on the physical properties, thermal stability, and microstructure of PU foams. The results revealed that the PU foam made from CBP had a higher density and superior thermal stability compared to that made from FBP; however, they were also much more fragile. Scanning electron Microscope (SEM) images indicated that the lignin compounds in the CBP had impact on the structure of the PU foam.

Keywords

Bamboo, liquefaction, microwave, lignin derivatives, polyurethane foam

Citation

Xie, Jiulong; Qi, Jinqiu; Hse, Chung-Yun; Shupe, Todd F. 2014. Effect of lignin derivatives in the bio-polyols from microwave liquefied bamboo on the properties of polyurethane foams. BioResources. 9(1):578-588. 11 p.
https://www.fs.usda.gov/research/treesearch/48243