树脂砂增强防潮剂的研究

• 作 者: 张永年 赵涛 林秀森
• 机 构: 天津大学,天津大学,盖县化工厂,
• 出 处: 铸造设备研究
• 发表日期: 1989年02期
• 关键词: 防潮剂 树脂砂 偶联剂 固结强度 环境湿度 最终强度 高湿环境 扫描电镜

本文研究了环境湿度对树脂自硬砂固化过程中固结强度的影响,着重研究了以有机硅为基的各种不同增强防潮剂,筛选出性能上不亚于常用偶联剂KH-550的有机硅,并对比了它们在低湿环境和高湿环境下的最终强度以及其它工艺性能,利用扫描电镜和光谱分析得知该有机硅存有有效的管能团,从而确定这新型的硅有机物是完全可以取代价格昂贵的KH-550,对树脂砂能起到大幅度提高湿强度和降低湿度的敏感性,为树脂砂偶联剂开创一条新途径。

In this paper, the effect of environmental humidity on the consolidation strength of resin self-hardening sand was studied. Various silicone-based reinforcing moisture-proofing agents were studied emphatically. The performances of the resins were as good as those of the conventional coupling agent KH-550 Silicone, and compared their final strength in low humidity environment and high humidity environment and other process performance, the use of scanning electron microscopy and spectral analysis that the effective presence of silicone tube group to determine the new silicon organics is Can completely replace the expensive KH-550 resin sand can play a significant increase in wet strength and reduce the sensitivity of humidity for the resin sand coupling agent to create a new way.