《Table 1 Yield, size, Zeta potential, and carboxyl group content of nanocellulose》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《Comparable Characterization of Nanocellulose Extracted from Bleached Softwood and Hardwood Pulps》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

*The yields were on the basis of the dry weight of starting materials.F:CNF obtained by FA hydrolysis；T:CNC obtained by TEMPO-mediated oxidation of CNF.

In this work，the bleached aspen and spruce pulps were used as starting materials for the preparation of nanocellulose using the same method under identical conditions.In step I，FA hydrolysis was conducted，and the resultant nanocellulose was found to be CNF，i.e.Aspen F and Spruce F.In step II，a TEMPO-mediated oxidation of the CNF（obtained from step I）was carried out，and the resultant nanocellulose was found to be CNC，i.e.Aspen T and Spruce T.Table 1 lists the yield，mean size，Zeta potential，mobility，and carboxyl group content of the nanocellulose products.As can be seen，the yields of Spruce F and Spruce T were higher compared to Aspen F and Aspen T，respectively；this phenomenon was attributed to the higher values of the density，fiber length，and cellulose crystallinity（Table2）of the spruce pulp in comparison with the aspen pulp[21-22].Consequently，the mean sizes of Spruce F（5193 nm）and Spruce T（523 nm）were also larger than those of Aspen F（3280 nm）and Aspen T（276 nm），respectively，and the detailed distribution of the particle size is shown in Fig.1.In other words，the aspen pulp with shorter fiber was easier to be hydrolyzed compared to spruce pulp under the same treatment conditions.