本文研究了与溶质浓度、溶剂种类、温度和剪切速率有关的纤维素硫酸半酯钠盐(NaCS)稀溶液流变行为,并与部分水解聚丙烯酰胺(HPAAm)进行了比较。结果表明:在无外加盐时,25℃,NaCS稀溶液是假塑性流体,浓度1500ppm,其粘度为9.7cp,增稠能力约为HPAAm的两倍。NaCS在外加盐的矿化水中,被研究的溶液是牛顿流体,溶液粘度与HPAAm相同。具有僵硬主链和沿链均匀分布着-SO_3~-基团,从而赋与NaCS溶液良好的耐剪切性能。 In this paper, the rheological behavior of dilute solution of sodium cellulose sulfate half ester (NaCS), which is related to solute concentration, solvent type, temperature and shear rate, was studied and compared with that of partially hydrolyzed polyacrylamide (HPAAm). The results show that in the absence of added salt, the dilute solution of NaCS at 25 ℃ is a pseudoplastic fluid with a concentration of 1500 ppm and a viscosity of 9.7 cp. The thickening capacity is about twice that of HPAAm. NaCS In salted mineralized water, the solution studied is Newtonian and has the same solution viscosity as HPAAm. With a rigid backbone and chain along the chain evenly distributed -SO_3 ~ - group, which endowed NaCS solution good shear resistance.