Effectiveness of an Eco-friendly Polymer Composite Sand-Fixing Agent on Sand Fixation
Effectiveness of an Eco-friendly Polymer Composite Sand-Fixing Agent on Sand Fixation
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环保型高分子复合固沙剂的固沙效果
DOI：
10.1007/s11270-015-2490-7
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发表时间：
2015-06-01
影响因子：
2.9
通讯作者：
Lei, Ziqiang
中科院分区：
文献类型：
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作者：
Ma, Guofu;Ran, Feitian;Lei, Ziqiang
通过天然XG、部分中和的丙烯酸(NaA)和红土在溶液中接枝共聚，成功制备了一种新型环保黄原胶-g-聚(丙烯酸)/红土(XG-g-PAA/红土)有机-无机复合聚合物，用作化学固沙剂(CSFA)。 FTIR光谱证实NaA已接枝到XG链上，并且红土的-OH基团参与了聚合反应。考察了CSFA含量对固沙效果的影响，老化试验结果表明，CSFA具有良好的耐水、耐热、抗冻融、抗紫外线老化性能，能够满足沙漠恶劣环境下的使用要求。此外，它还表现出优异的保水和抗蒸发性能。
A novel and eco-friendly xanthan gum-g-poly(acrylic acid)/laterite (XG-g-PAA/laterite) organic-inorganic composite polymer used as chemical sand-fixing agent (CSFA) was successfully prepared by grafted copolymerization of natural XG, partially neutralized acrylic acid (NaA), and laterite in solution. FTIR spectra confirmed that NaA had been grafted onto XG chains, and the –OH groups of laterite participated in polymerization reaction. The influence of the content of CSFA on sand-fixing effect was investigated, and the results of the aging test indicated that the CSFA had remarkable water resistance, heat resistance, anti-freeze-thaw, and anti-ultraviolet aging performances, which could meet the requirement of application in the harsh desert environment. Moreover, it also showed excellent water-retaining and anti-evaporation properties.