Isolation and characterization of nanocrystalline cellulose from corn husk

被引：56

作者：

de Carvalho Mendes, Carlos Augusto ^{[1
,2
]}

Sgambato Ferreira, Naiara Marinho ^{[2
]}

Guimaraes Furtado, Cristina Russi ^{[1
]}

Furtado de Sousa, Ana Maria ^{[1
]}

机构：

[1] Univ Estado Rio De Janeiro, Chem Proc Dept, BR-20550900 Rio De Janeiro, RJ, Brazil

[2] Fed Inst Educ Sci & Technol Rio de Janeiro, BR-25050100 Duque De Caxias, RJ, Brazil

来源：

MATERIALS LETTERS | 2015年 / 148卷

关键词：

Nanocrystalline materials; Nanoparticles; Acid hydrolysis; Crystallinity; Thermal analysis; Morphology; FIBERS;

D O I：

10.1016/j.matlet.2015.02.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study aimed at investigating the influence of the "reaction time" and the "fiber/acid ratio" on the properties of nanocrystalline cellulose isolated from corn husk, which was chosen because it is abundant and so far it has not been extensively investigated as a raw-material option to produce nanocrystalline cellulose. The results showed that corn husk can be used to produce nanocrystalline cellulose and also that reaction time affected the crystallinity index, particle size and thermal stability of the products. Additionally, an interaction between the reaction time and fiber/acid ratio on the crystallinity degree was observed. When dried by a spray-drying technique, the nanocrystalline cellulose aqueous dispersion produced agglomerates of particles with spherical and irregular shapes. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：26 / 29

页数：4

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