期刊
CARBOHYDRATE POLYMERS
卷 88, 期 4, 页码 1184-1188出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.01.081
关键词
Cotton pulp fiber; NCC; Sulfuric acid; Hydrolysis; Yield; Particle size analysis
资金
- Shandong Excellent Young Scientist Award Foundation, China [2007BS02008]
Nanocrystalline cellulose (NCC) has attracted a significant interest in recent years as it is made from renewable resources and has many unique characteristics. In this paper, we prepared NCC from cotton pulp fiber by the method of sulfuric acid hydrolysis, with the objective of achieving a maximum yield. The yield and the particle size of NCC were measured as a function of sulfuric acid concentration, reaction temperature and hydrolysis time, and optimized by an orthogonal test. A high NCC yield of more than 60% was found when the sulfuric acid concentration is 64%, reaction temperature is 50 degrees C and the hydrolysis time is 5 h. The morphology and the size of NCC were characterized by scanning electron microscope (SEM) and particle size analyzer. The finding from this study should provide guidance in maximizing the yield of NCC from cotton pulps using acid hydrolysis. (C) 2012 Elsevier Ltd. All rights reserved.
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