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Polyurethane foams from alkaline lignin-based polyether polyol

机译:由碱性木质素基聚醚多元醇制成的聚氨酯泡沫

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As a byproduct produced during biorefining, alkaline lignin (AL) possesses multiple benzene ring and phenol hydroxyl groups with high chemical reactivity, and is renewable and cheaper than petrochemical products. Here, AL was liquefied in polyethylene glycol-400/glycerol and subsequently used to prepare polyurethane foams (PUFs). The results showed that the AL could be almost completely liquefied. The resulting lignin-based polyether polyol (LPP) exhibited physicochemical properties similar to a commercial polyether polyol (PP). The PUFs made from LPP presented better thermal stability and higher compressive strength than those PUFs obtained from commercial PP, suggesting this could be a viable commercial application for AL. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43261.
机译:作为生物精制过程中产生的副产物,碱性木质素(AL)具有多个苯环和苯酚羟基,具有较高的化学反应性,并且可再生且比石化产品便宜。在此,AL在聚乙二醇400 /甘油中液化,随后用于制备聚氨酯泡沫(PUF)。结果表明,AL几乎可以完全液化。所得的基于木质素的聚醚多元醇(LPP)表现出类似于商业聚醚多元醇(PP)的物理化学性质。由LPP制成的PUF与由商用PP制成的PUF相比,具有更好的热稳定性和更高的抗压强度,这表明这对于AL来说是可行的商业应用。 (c)2015 Wiley Periodicals,Inc. J. Appl。 Polym。科学2016,133,43261。

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