中文摘要：

利用NDJ-1型旋转粘度计分别对木浆/离子液体氯化1-丁基-3-甲基咪唑（[BMIM]Cl）溶液体系和水洗汽爆麦草/[BMIM]Cl溶液体系的流变性能进行了研究.考察了转子转速、温度、纤维素浓度及添加剂等对溶液粘度的影响.结果表明,两种溶液体系的流动活化能均较低,分别为42 kJ/mol和47 kJ/mol,其表观粘度随温度升高而降低;纤维素浓度和浆粕聚合度的增加都可使溶液的粘度增加.进一步研究了不同添加剂对粘度的影响,发现二甲基亚砜（DMSO）、N,N-二甲基乙酰胺（DMAC）和1,4-二氧六环的加入都能降低溶液的粘度,但以DMSO的效果最佳.

英文摘要：

The rheological properties of wood pulp/ionic liquid 1-butyl-3-methylimidazolium chloride（[BMIM]Cl） solutions and water washed steam exploded wheat straw/[BMIM]Cl solutions were investigated by NDJ-1 viscometer. The dependence of the shear viscosity on rotor speed, temperature, cellulose materials content and additives were studied. The results showed that the two solutions both had lower flow-activation energy 42 kJ/mol and 47 kJ/mol, respectively. Both solutions exhibited decrease in viscosity with increasing temperature and increase in viscosity with increasing concentration and DP of cellulose materials. The addition of DMSO （dimethyl sulfoxide）, DMAC（N,N-dimethylacetamide） and 1,4-dioxane could decrease the viscosity and the DMSO was the best.