CO_2钠水玻璃砂粘结膜的微观结构分析

Microscopic Analysis of the Bonding Film Structure in C0_2 -Sodium-Silicate Sand

本文作者运用扫描电镜观察TCO_2钠水玻璃砂粘结膜的微观结构;分析了不同模数的CO_2钠水玻璃砂粘结膜断裂形式及力学性能;通过对CO_2吸收量的测定,对钠水玻璃砂粘结膜的结构模型进行了定量描述.

The motion law and physico-chemical reaction law of CO_2 in sodium silicate sand were investigated by the temperature measuring and absorbed CO2 amount of CO2 method. It is shown that the chemical reaction by pulse gassing is appreciably more intensified than that by continuous gassing, while the physical reaction is sigrificantly weakened. The strengths of the two core ends were higher than that of the central part of the core owing to the 'retention' tendency of CO2 gap. The influence of the modulus of silicate and the flow rate of CO2 on the physical and chemical reaction was also studied.