为推动水分蒸发抑制剂在南疆平原水库的应用,以十八醇(C18OH)和短链醇正丁醇(C4OH)为分子膜基材,采用超声波分散技术,制备了水分蒸发抑制剂体系。探讨了不同材料配比、表面浓度、温度、持续时间对抑制效果的影响。研究结果表明:C18OH/C4OH乳液体系的抑制率较高,抑制剂在试验小区使用时间可达180 h,且抑制水分蒸发的性能十分稳定,抗温度及杂质的干扰能力强,适用于南疆昼夜温差大、易起沙尘的环境。
Abstract
To promote the application of water evaporation inhibitors to plain reservoirs in southern Xinjiang, we prepared a water evaporation inhibitor system with octadecanol and short-chain alcohol n-butanol molecular membrane substrate by ultrasonic dispersion technology. We also discussed the factors influencing the performances of emulsion inhibitor, such as mix proportion, temperature, surface concentration, and duration. Results show that the inhibition rate of octadecanol and n-butyl alcohol heterogeneous latex system is higher than those of other groups. Inhibitors can be used for up to 180 hours in the test cell. Moreover, the performance of emulsion inhibitor is very stable, and the system has strong resistance to temperature and impurity interference. Therefore, the system can be applied to the natural environment subject to dust with high temperature difference.
关键词
水分蒸发抑制剂 /
干旱区 /
南疆水库 /
水资源保护 /
C18OH /
C4OH
Key words
water evaporation inhibitor /
arid area /
reservoir in southern Xinjiang /
water resources protection /
octadecanol /
n-Butyl alcohol
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参考文献
[1] 陈忠升,陈亚宁,徐长春. 近50 a来塔里木河干流年径流量变化趋势及预测[J].干旱区地理,2011,34(1):43-50.
[2] 张正勇,何新林,刘 琳,等. 中国天山山区降水空间分布模拟及成因分析[J]. 水科学进展,2015,26(4): 500-508.
[3] 岳春芳,侍克斌,曹 伟. 新疆水资源开发方式的利弊分析[J]. 节水灌溉,2014,(7):60-62.
[4] SIMKO A J, DRESSLER R G. Investigation of C20 to C25 Fattyalcohols and Blends as Water Evaporation Retardants[J]. Industrial & Engineering Chemistry-Product Research & Development,1969, 8(4): 446-450.
[5] 张晓浩,侍克斌,严新军,等. 群板覆盖下内陆干旱区平原水库节水效率研究[J]. 人民长江,2015,46(8):23-26.
[6] 王积强,王步天,蒋葆明. 十六和十八醇抑制水面蒸发有效期的确定[J].干旱区地理,1983,(3):20-31.
[7] 吴 燕,房希婷,杨昉明. 氨基甲酸酯基水分蒸发抑制剂的制备及性能[J]. 天津科技大学学报,2014,29(3):34-39.
[8] 马 艳,叶含春,吕喜风,等. 均相/非均相水分蒸发抑制剂对比试验研究[J]. 人民黄河,2015,37(6):43-45.
[9] 吕喜风,肖 让,李 林,等.十六醇和乙醇复配体系水分蒸发抑制剂研究[J].人民长江,2016,47(4):20-22.
[10]李传奇,李超超,王 帅,等.平原水库土工膜防渗特性分析[J]. 长江科学院院报,2016,33(4):135-139.
基金
塔里木大学现代农业工程重点实验室开放课题(TDNG20150601);国家科技支撑计划项目(2013BAC10B01)