表面活性剂对水玻璃砂性能影响研究

为了比较表面活性剂和化学改性剂对水玻璃的改性效果,使用了表面活性剂十二烷基磺酸钠和化学改性剂聚丙烯酰胺对水玻璃进行改性。实验结果表明：水玻璃的粘度随表面活性剂和化学改性剂的加入量而减小。当表面活性剂加入量为0.6%时,水玻璃砂的抗压强度最高,跟化学改性剂相比,表面活性剂的改性效果有所提高。当改性水玻璃加入量为4%时,在低吹气时间时十二烷基磺酸钠对水玻璃砂溃散强度的改善优于聚丙烯酰胺,而在高吹气时间时,聚丙烯酰胺对水玻璃砂溃散强度的改善优于十二烷基磺酸钠。

Study on properties of sodium silicate sand with the surface active agent

In order to compare the modified effects of water glass with the surface active agent and chemical modifier .The surfactant sodiumSdodecylSsulphonate and chemical modified polyacrylamided were used to modify water glass.The experimental results showed that the viscosity of the water glass decreases with the addition of the surfactant and the chemical modifier. The compressive strength of water glass sand was the highest when the amount of surfactant was added to 0.6%, and the modification effect of surface active agent was improved compared with that of chemical modifier. When the modified water glass addition amount is 4%, at low blowing time , sodium dodecyl sulfate for collapsibility strength of water glass sand was better than that of polyacrylamide, and at high blowing time, polyacrylamide for water glass sand collapsibility strength was better than that with sodium dodecyl sulfate.