两种功能高分子材料对沙土物理性质影响的比较

采用SEM,透水系数法、加压板法等现代测试手段,观察与分析高分子吸水树脂、固沙植被多功能高分子复合材料表面微观结构形态,比较高分子吸水树脂与固沙植被多功能高分子复合材料改良沙土后沙土的透水、保水等特性及沙土水分的有效利用情况.实验结果证明固沙植被多功能高分子复合材料比高分子吸水树脂改良沙土的效果好,使沙土的气、液、固三相比有利植物的生长,能保持高的水有效利用率.本实验结果为固沙植被多功能高分子复合材料的应用提供了新的依据.

Comparison of effects of two functional polymer materials on physical properties of sandy soil

The modern test methods such as SEM,permeability coefficient method,pressure-board method,etc,have been adopted to observe and analyze the surface microscopic structure of high polymer absorbent resin and high polymer sand-fixing vegetation compound materials(for short,compound materials),and to compare their influence on the properties of water percolation,conservation and use efficiency of sandy soil.It is proved that high polymer sand-fixing vegetation compound materials are better than high polymer absorbent resin in improving sandy soil,resulting in beneficial gas-liquid-solid ratio of sandy soil for plant growth,and maintaining high water use efficiency.The study results may provide new basis for the application of high polymer sand-fixing vegetation compound materials.