具有广泛用途的水溶性纤维素醚,易溶于水,并有很好的粘滞性,是乳胶漆、粘合水泥及各种类型泥桨的增稠剂,也是高分子化合物生产中乳液聚合的悬浮剂。 我们通过实验发现,纤维素醚溶液的粘度随浓度的增加而升高,随温度的升高而降低。当其溶液浓度约在0.8％以上时,温度对粘度的影响很大(即粘温曲线的斜率较大),浓度越低这种影响越小,对同一浓度而言,当温度在60～70℃以下时,随温度的降低粘度升高很快;在70℃以上则变化相当缓慢。如果 Has a wide range of uses of water-soluble cellulose ether, soluble in water and has good viscosity, is a latex paint, cementitious cement and various types of paddle thickener, but also the production of polymer compounds emulsion polymerization Of suspending agent. We experimentally found that the viscosity of cellulose ether solution increases with increasing concentration, with decreasing temperature. When the solution concentration is above about 0.8%, the temperature has a great influence on the viscosity (that is, the slope of the viscosity-temperature curve is larger). The lower the concentration is, the smaller the effect is. For the same concentration, when the temperature is between 60 and 70 ° C, the viscosity increases rapidly with the decrease of the temperature, while the change is relatively slow at the temperature above 70 ° C. in case