螺旋微流道分级分离纳米纤维素  

Spiral Microchannel for Nanocellulose Fractionation

作　　者：曾劲松[1] 李润宇 ZENG Jinsong;LI Runyu(State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《造纸科学与技术》2019年第1期11-19,共9页Paper Science & Technology

基　　金：国家重点研发计划(2017YFB0307902);广东省科技计划(2015B020241001)

摘　　要：利用螺旋微流控芯片分级分离纳米纤维素,使纳米纤维素按长短依次分布在通道内,从而实现纳米纤维素的分级分离。研究了最小螺旋半径为5 mm,最大螺旋半径为15 mm,螺旋圈数分别为T=4和T=6的单、双螺旋微流控芯片在不同流速下对纳米纤维素分级分离效果的影响。结果表明:流速为80μL/min时为最佳分离流速,其中螺旋圈数为T=6的单螺旋微流控芯片的分级分离效果最佳。The spiral microfluidic chip is used to fractionate the nanocellulose, so that the nanocellulose is sequentially distributed in the channel to realize the fractionation of the nanocellulose. The effects of single-and double-helical microfluidic chips with a minimum helix radius of 5 mm, a maximum helix radius of 15 mm and T=4 and T=6 on the fractionation of nanocellulose were studied at different flow rates. The results show that the best separation flow rate is 80 μL/min, and the single-helical microfluidic chip has the best classification with the number of spiral turns T=6.

关 键 词：螺旋微流道 分级分离 纳米纤维 

分 类 号：TS712[轻工技术与工程—制浆造纸工程]