CROSSLINKED CELLULOSE AS PRECURSOR IN PRODUCTION OF HIGH-GRADE CELLULOSE DERIVATIVES AND RELATED TECHNOLOGY
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
A pulp in accordance with a particular embodiment includes crosslinked cellulose fibers. The pulp can have high brightness， reactivity， and intrinsic viscosity. The pulp， therefore， can be well suited for use as a precursor in the production of low-color， high-viscosity cellulose derivatives. A method in accordance with a particular embodiment of the present technology includes forming a pulp from a cellulosic feedstock， bleaching the pulp， crosslinking cellulose fibers within the pulp while the pulp has a high consistency， and drying the pulp. The bleaching process can reduce a lignin content of the pulp to less than or equal to 0.09% by oven-dried weight of the crosslinked cellulose fibers. Crosslinking the cellulose fibers can include exposing the cellulose fibers to a glycidyl ether crosslinker having two or more glycidyl groups and a molecular weight per epoxide within a range from 140 to 175.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
