通过采用过氧酸体系法、有机溶剂法以及硝酸-乙醇-硫酸法等6种方法提取蔗渣纤维素,综合比较其纤维素含量、聚合度、提取所需时间以及外观形态等各项指标,以期找出提取蔗渣纤维素的最佳方法。结果表明:6种方法中,硝酸-乙醇-硫酸法最为优越,此法提取的纤维素含量最大,达到84.68%,同时耗时最短,仅3.5h,聚合度中等,且纤维素呈白色花粉状,有广阔的工业生产前景。
To find an appropriate method of extracting cellulose from bagasse,acid peroxide system method,organic-solvent law and nitric acid-alcohol-sulfate acid method etc.6 ways were used to extract bagasse cellulose.Then a comprehensive comparisons among the cellulose content,degree of polymerization,required time and appearance shape were made.The result showed that nitric acid-alcohol-sulfate acid method was superior to others,which reached the biggest cellulose content 84.68%,the shortest time 3.5h,medium degree of polymerization as well as being the white powder cellulose.This method could be widely applied in industrial production.
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