林产化学与工业Issue(3)：7-12,6.DOI:10.3969/j.issn.0253-2417.2014.03.002
水再分散型纳米纤维素晶须的制备及表征
Preparation and Characterization of Water-redispersed Nanocellulose Whiskers
摘要
Abstract
Aqueous suspensions of nanocellulose whiskers ( NCW) were prepared by the sulfuric acid hydrolysis. The redispersed powders of NCW were obtained through adding a certain amount of sodium carboxymethyl cellulose ( CMC-Na ) to NCW suspensions and then processed by spray drying. The NCW powders were redispersed in the water and the redispersed NCW ( re-NCW) were obtained. The influences of CMC-Na dosages, ultrasonic time, pH of the suspensions, and inlet temperature of the spray drying on the redispersibility of re-NCW were investigated. Then the re-NCW were characterized using several analytical techniques such as FT-IR, SEM, TEM and TGA etc. The results showed that the NCW water-redispersibility suspension were obtained with an average particle size of 170 nm and a Zeta potential of 65 mV, when the amount of CMC-Na was 6%, the ultrasonic time was 5 min, the pH value of the suspensions was 7, the inlet temperature for spray drying was 160 ℃, respectively.关键词
纳米纤维素晶须/羧甲基纤维素钠/水再分散Key words
nanocellulose whiskers/sodium carboxymethyl cellulose/water-redispered suspension分类
化学化工引用本文复制引用
陶向文,叶代勇..水再分散型纳米纤维素晶须的制备及表征[J].林产化学与工业,2014,(3):7-12,6.基金项目
国家自然科学基金资助项目(20646003) （20646003）
广东省自然科学基金(07300767) （07300767）
华南理工大学中央高校基本科研业务费专项资金项目(2009ZM0239) （2009ZM0239）
