A comparative experiment on homogeneous and heterogeneous water evaporation retardant

摘要

To increase the utilization rate of water resources, this paper has developed a new environmentally-friendly heterogeneous retardant, which contains higher aliphatic alcohol (C_(18)OH), a base material of water evaporation retardant. Also, the retardant is compounded with fatty alcohol-polyoxyethylene ether (AEO) emulsifier and normal propyl alcohol. Through an indoor analog and contrastive experiment, the paper analyzes the various factors of this retardant, such as concentration, temperature and coating time, etc. The experiment result shows that compared to homogeneous retardant, heterogeneous retardant (C_(18)OH/C_3OH) has better stability, higher resistance to temperature interference and a stronger inhibitory effect on water evaporation. Meanwhile, it can reduce about 40% of invalid water evaporation capacity.