不同保水剂理化特性和吸失水能力的研究

为给保水剂的研究开发、生产和应用提供理论参考,从不同保水剂的pH、电导率、吸水倍数、供水能力和平衡时间等指标综合评价不同来源保水剂的总体性能.结果表明,不同保水剂在吸水过程中的nH值和电导率差异较大,同一种保水剂在不同时段内的pH值和电导率会产生比较大的变化.不同保水剂充分吸水后,保水剂的吸水能力差异非常显著,吸水倍数相差4倍左右;不同保水剂充分吸水后,其供水能力差异显著,释放水分的速度及最后完全释放出水分的时间也大不相同.因此,建议在生产和使用保水剂时,应综合考虑保水剂的理化特性和吸失水能力等指标.

Physico-chemical Properties of Different Water-keeping Agents and Their Absorption and Dehydration Capacity

The pH, conductivity, water absorption time, water supply capacity and balance time of different water-keeping agents were evaluated to provide a theoretical reference for development, production and application of water-keeping agents. The results showed that there was significant difference in pH and conductivity between different water-keeping agents during the water absorption process,and the pH and conductivity of the same water-keeping agent greatly varies within different times. There was very significant difference in the water absorption capacity between different water-keeping agents after full water absorption. There was significant difference in water supply capacity between different water-keeping agents after full water absorption and there was difference in water release speed and time of fully releasing water between different water-keeping agents. Therefore, the physico-chemical property and water absorption capacity of water-keeping agents should be comprehensively considered in their production and utilization.