摘要
黏度是干混砂浆行业选择纤维素醚的最基本指标,测试纤维素醚溶液的黏度时,存在纤维素醚溶液不均匀、溶液内存在气泡和溶液内温度不一致等问题。通过配制MC、HEMC、HPMC和HEC 4种常见的非离子纤维素醚溶液,分析了影响纤维素醚溶液黏度测量结果的因素,包括分散、冷却、搅拌、补水、恒温和黏度测试6个方面,进而提出了测试纤维素醚溶液黏度时需要注意的环节,包括选择容器的尺寸大小、纤维素醚粉末的分散方式、搅拌速度、停止搅拌的时间和恒温时间等,以保证纤维素醚溶液黏度测试结果的可靠性。
Viscosity is basic index of cellulose ether used in dry-mixed mortar. Some problems need to be solved when testing the viscosity of cellulose ether solution, which includes unhomogeneity of solution, air voids in solution and different temperature in solution. Through preparing four frequently-used non-ionic cellulose ether solutions of MC,HEMC, HPMC and HEC, analyzes the factors that influencing the viscosity test results of cellulose ether solutions, such as dispersal, cooling, mixing, water replenishing, constant temperature and viscosity test process, and advances some issues needed for attention in the process of testing the viscosity of cellulose ether solution so as to assure the dependability of viscosity test results of cellulose ether solution, which includes size of test container, dispersal mode of cellulose ether powder, mixing velocity, time of ceasing mixture and the time of constant temperature etc.
出处
《湖南工业大学学报》
2015年第3期15-19,共5页
Journal of Hunan University of Technology
基金
湖南省建设厅科技计划基金资助项目(C10108)
关键词
干混砂浆
纤维素醚
黏度
测试
dry-mixed mortar
cellulose ether
viscosity
test
