Rheological properties of nitrated bacterial cellulose solution

被引：0
|
作者：
Zhu J. [1 ]
Luo Q.-P. [1 ]
Li Z.-Q. [1 ]
Duan X.-H. [1 ]
Pei C.-H. [1 ]
Zhao J. [2 ]
Mao C.-Y. [2 ]
机构：
[1] Southwest University of Science and Technology, State Key Laboratory Cultivation Base of Nonmetal Composites and Functional Materials, Mianyang
[2] Luzhou North Chemical Indutries Co., Ltd., Luzhou
来源：
Luo, Qing-Ping (luoqingping@swust.edu.cn) | 2016年 / Institute of Chemical Materials, China Academy of Engineering Physics卷 / 24期
关键词：
Newtonian-fluid; Nitrated bacterial cellulose(NBC); Rheological properties; Viscosity;
D O I：
10.11943/j.issn.1006-9941.2016.04.011
中图分类号：
学科分类号：
摘要：
Using N,N-dimethylformamide (DMF) as solvent, nitrated bacterial cellulose (NBC) solutions with different nitrogen contents were prepared according to a certain proportion. The effects of solution concentrations and nitrogen contents of NBC on the viscosities of NBC solutions and the dependence relationship of concentrations and viscosities of the solutions were studied by a HAAKE rotational rheometer, and the viscoelasticity of NBC solution was analyzed through its stress scanning and frequency scanning. Results show that the solution system is the Newtonian-fluid when the concentration of NBC solution is in the range of 0.5%-5.0%, and the viscosity increases as the increase of the solution concentration, meeting an exponential function growth relation. When the concentration of NBC solution is 5.5%, NBC solution is the non-Newtonian fluid, showing a shear thinning effect, and the shear stress and shear rate meet a power function growth relation. The viscosities of NBC solutions increase with the increase of NBC molecular weight. NBC with high molecular weight helps to improve the stability of the solution system and makes it less response to external stimulus. © 2016, Editorial Board of Chinese Chinese Journal of Energetic Materials. All right reserved.
引用
收藏
页码：375 / 379
页数：4
相关论文
共 14 条
  • [1] Sun D.-P., Ma B., Zhu C.-L., Et al., Novel nitrocellulose made from bacterial cellulose, Journal of Energetic Materials, 28, 2, pp. 85-97, (2010)
  • [2] Yang Q., Peng B.-H., Liang G., Et al., Preparation and Characterization of Nitrated Bacterial Cellilose, Chinese Journal of Explosives & Propellants, 35, 3, pp. 88-90, (2012)
  • [3] Fernandez de la Ossa M., Lopez-Lopez M., Torre M., Et al., Analytical techniques in the study of highly-nitrated nitrocellulose, TrAC Trends in Analytical Chemistry, 30, 11, pp. 1740-1755, (2011)
  • [4] Sun D.-P., Yang J.-Z., Bacterial Cellulose Functional Materials and their Industrial Application, pp. 136-149, (2010)
  • [5] Xia M., Luo Y.-J., Hua Y.-L., Preparation and characterization of nitrocellulose nano-fibers, Chinese Journal of Energetic Materials(Hanneng Cailiao), 20, 2, pp. 167-171, (2012)
  • [6] Peng Y.-J., Wang Y., Liu Y.-Q., Et al., Measurement and analysis of thermal physical parameters on nitrocellulose energetic materials, Chinese Journal of Energetic Materials(Hanneng Cailiao), 21, 6, pp. 760-764, (2013)
  • [7] Dai J.-W., Huo Y.-L., Rheological properties ofNitrocellulose concentrated solution, Chinese Journal of Explosives & Propellants, 4, 1, pp. 1-9, (1981)
  • [8] Cui F.-H., properties of Nitrocellulose solution, (2005)
  • [9] Birinci E., Gevgilili H., Kalyon D.M., Et al., Rheological characterization of nitrocellulose gels, Journal of Energetic Materials, 24, 3, pp. 247-269, (2006)
  • [10] Ma S.-D., Song G.-L., Feng N.-B., Preparation and characterization of self-emulsified waterborne nitrocellulose, Carbohydrate Polymers, 89, 3, pp. 36-40, (2012)
12