A comprehensive investigation on cellulose nanocrystals with different crystal structures from cotton via an efficient route

被引：83

作者：

Huang, Chengling ^{[1
]}

Yu, Houyong ^{[1
]}

Abdalkarim, Somia Yassin Hussain ^{[1
]}

Li, Yingzhan ^{[1
]}

Chen, Xiang ^{[1
]}

Yang, Xiaogang ^{[1
]}

Zhou, Ying ^{[1
]}

Zhang, Lianyang ^{[2
]}

机构：

[1] Zhejiang Sci Tech Univ, Zhejiang Prov Key Lab Fiber Mat & Mfg Technol, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Xiasha Higher Educ Pk Ave 2 928, Hangzhou 310018, Peoples R China

[2] Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2022年 / 276卷

关键词：

Cellulose nanocrystals; Polymorph; Morphology; Thermal stability; SINGLE-STEP EXTRACTION; ACID; POLYMORPHS; MERCERIZATION; ADSORBENTS; BARRIER;

D O I：

10.1016/j.carbpol.2021.118766

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The crystal structures of cellulose nanomaterials play an important role in their morphologies and applications, however, there was still lacking systematic research on preparing various crystalline allomorphs of cellulose nanocrystals with high thermal stability. Herein, the efficient synthesis route was presented to design various crystalline allomorphs of cellulose from cotton. And then, cellulose nanocrystals with different crystal structures (CNC-I, CNC-II, CNC-IIIII, CNC-IVII) were prepared by hydrogen peroxide hydrolysis of resultant cellulose. Overall, needle-like CNC-I (length of 180 +/- 25 nm, diameter of 12 +/- 2 nm), near-spherical CNC-II (diameter of 101 +/- 12 nm), and spherical CNC-IIIII (diameter of 22 +/- 3 nm) and CNC-IVII (diameter of 21 +/- 2 nm) all exhibited remarkable dispersibility and thermal stability (Tmax > 357 degrees C). This work provides a simple and lowcost synthesis route for various crystalline allomorphs of CNCs with high thermal stability from the same raw materials (cotton).

引用

页数：10

共 43 条

[41] Preparation and characterization of spherical cellulose nanocrystals with high purity by the composite enzymolysis of pulp fibers [J].