Process optimization of nanocrystalline cellulose from sunflower seed hull and its characterization

Nanosized single crystal cellulose is often called whisker. Nano-whisker or nanofibrils can be prepared from various sources, such as natural fibers, agricultural by-products, and marine animals. In China, the agricultural product processing industry yields abundant cellulose waste. In this study, n...

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Published inNong ye gong cheng xue bao Vol. 31; no. 15; pp. 302 - 308
Main Authors Chen, Shanshan, Tao, Hongjiang, Wang, Yajing, Ma, Zhongsu, Zhang, Liping
Format Journal Article
LanguageChinese
Published 01.08.2015
Subjects
Byproducts
Cellulose
Fourier transforms
Infrared spectroscopy
Mathematical models
Nanostructure
Seeds
Sunflowers
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Summary:Nanosized single crystal cellulose is often called whisker. Nano-whisker or nanofibrils can be prepared from various sources, such as natural fibers, agricultural by-products, and marine animals. In China, the agricultural product processing industry yields abundant cellulose waste. In this study, nano-cellulose was prepared by a sulphuric acid hydrolysis method and with shells of sunflower seeds as raw material. The effects of four factors on nano-cellulose yield were investigated by single-factor tests. A quadratic polynomial model was built, and then its effectiveness and the interactions between different factors were analyzed. Also the micro-structure of the nano-cellulose as-prepared was investigated by transmission electron microscopy (TEM), particle size distribution, Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). FT-IR showed that NCC still possessed the basic chemical structure of cellulose and did not have functional group variation. XRD showed that NCC possess a typic
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ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2015.15.041