LIGNOCELLULOSE SOLUTION AND SHAPED ARTICLE, AND PRODUCTION METHOD THEREFOR
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United States of America
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Dec 12, 2024
app pub date -
Oct 4, 2022
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Oct 4, 2022
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Abstract
A lignocellulose solution is produced by a production method including: coarsely pulverizing a biomass containing lignocellulose to obtain a coarse powder; mixing the coarse powder with an organic acid; and dissolving the coarse powder in the organic acid. A molded article containing lignocellulose as a main component is formed from this solution. The molded article has a density of less than 1.20 g/cm3. In one embodiment, the molded article is substantially free of an adhesive component. In another aspect, cellulose, hemicellulose, and lignin constituting the lignocellulose form an ester bond with an organic acid. A molded article according to still another embodiment has a density of less than 1.60 g/cm3 and an amount of functional groups bound to cellulose, hemicellulose, and lignin of 0.35 or more and 0.60 or less.
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