摘要
以石膏为原料,采用水热法制备硫酸钙晶须。研究了料浆浓度、反应温度、反应时间、pH值等工艺条件对产品长径比的影响。通过显微镜观察测定了硫酸钙晶须的长径比,得出制备硫酸钙晶须的最优工艺条件为:反应温度130℃、料浆初始pH值10、料浆质量分数3%、反应时间为9 h。在此条件下,硫酸钙晶须产品长径比为75。
Calcium sulfate whiskers were prepared by hydrothermal synthesis with gypsum as materials, the effect of coneentration of raw materials, the temperature, the time and pH on the aspect ratio of product were studied. The optimum conditions for the preparation were that the reaction temperature is 130℃, initial pH value of slurry is 10, mass fraction is 3% and the time is 9 hours, as a result of microscope to mensurate the aspect ratio of calcium sulfate whiskers. Under these conditions, the aspect ratio of calcium sulfate whiskers is 75.
出处
《四川理工学院学报（自然科学版）》
CAS
2012年第1期38-40,共3页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
基金
自贡市重点科技项目(10X06
2011G052)
四川理工学院大学生创新基金(CX20110316)
关键词
石膏
水热合成
硫酸钙晶须
gypsum
hydrothermal synthesis
calcium sulfate whiskers
