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    • 91. 发明申请
    • Energy Efficient Process for Preparing Nanocellulose Fibers
    • 用于制备纳米纤维素纤维的能量效率过程
    • US20150167243A1
    • 2015-06-18
    • US14407751
    • 2013-06-13
    • University of Maine System Board of Trustees
    • Michael A. BilodeauMark A. Paradis
    • D21H17/63D21H11/18D21C9/00D21H17/00
    • A scalable, energy efficient process for preparing cellulose nanofibers is disclosed. The process employs a depolymerizing treatment with one or both of: (a) a relatively high charge of ozone under conditions that promote the formation of free radicals to chemically depolymerize the cellulose fiber cell wall and interfiber bonds; or (b) a cellulase enzyme. Depolymerization may be estimated by pulp viscosity changes. The depolymerizing treatment is followed by or concurrent with mechanical comminution of the treated fibers, the comminution being done in any of several mechanical comminuting devices, the amount of energy savings varying depending on the type of comminuting system and the treatment conditions. Comminution may be carried out to any of several endpoint measures such as fiber length, % fines or slurry viscosity.
    • 公开了一种用于制备纤维素纳米纤维的可伸缩的节能方法。 该方法采用以下一种或两种的解聚处理:(a)在促进形成自由基以化学解聚纤维素纤维细胞壁和纤维间键的条件下相对较高的臭氧量; 或(b)纤维素酶。 解聚可以通过纸浆粘度变化来估计。 解聚处理之后是或同时进行处理的纤维的机械粉碎,粉碎在几种机械粉碎装置中的任何一种中进行,能量节省量根据粉碎系统的类型和处理条件而变化。 可以进行任何终点测量,例如纤维长度,细粉%或浆液粘度。