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将膨润土和胶粘剂加以混合 ,结合国外先进的粘结工艺 ,制成防渗卷材 .对膨润土类型、外封装用材料及胶粘剂的确定 ,卷材的成型工艺及卷材的渗透性能研究结果表明 ,钠基膨润土的渗透性能优于钙基膨润土 .在人工钠土中无论是加入聚丙烯酸酯类乳液还是 PM植物胶 ,在掺加的比例一定时 ,随着密度的增大 ,渗透系数下降 ;在相同密度下 ,随着掺加的比例增大 ,渗透系数下降 .人工钠土的渗透系数与水力坡度呈线性关系 .膨润土及其胶粘剂卷材与模拟浸出液间的化学配伍性较好 .膨润土卷材具有良好的自封闭性 ,在材料受损的情况下也能够通过自封闭作用达到较好的“焊接”效果 .
The bentonite and the adhesive are mixed, combined with foreign advanced bonding process, made of impermeable membrane.For the bentonite type, the outer packaging materials and adhesives to determine the membrane forming process and membrane permeability of the results show that, The permeability of sodium bentonite is better than that of calcium bentonite.Whether it is adding polyacrylate emulsion or PM plant gum into artificial sodium earth, the permeability coefficient decreases with the increase of density at a certain proportion of spiked ratio, Under the same density, the permeability coefficient decreased with the increase of the proportion of the bentonite.The permeability coefficient of artificial sodium-clay showed a linear relationship with the hydraulic slope.The chemical compatibility of bentonite and its adhesive and simulated leaching solution was better. Has a good self-enclosed in the case of material damage can also be self-closing effect to achieve better “welding” effect.