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ÎÄÏ×Ãû³Æ:Extraction and characterization of nanocellulose structures from raw cotton linter

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The linter was ground in a Wiley mill and hydrolyzed without any chemical pretreatment. The method of acidic hydrolysis was applied with minor adaptations. The linter was mechanically stirred at a ratio of 1:20 (w/v) of aqueous concentrated sulfuric acid (60%, w/w) with a Teflon?bar dispersing element, at 45?¡ãC, for 60?min. The nanowhiskers suspension was centrifuged for 15?min at 13,000?rpm in a High-speed Refrigerated Centrifuge CR22GIII, and the precipitate was resuspended in distilled water and dialyzed with tap water until a pH (6¨C7) was reached. The process from centrifugation through dialysis was repeated three times.
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