摘要
CO2固化碱性酚醛树脂是一种新型造型、制芯粘合剂,它是由羟甲基含量较高的甲阶碱性酚醛树脂和含氧酸盐及碱等物质组成的混合物,甲阶碱性酚醛树脂性能及它们的组成是影响CO2固化碱性酚醛树脂砂强度的主要因素。本文中,详细介绍了CO2固化碱性酚醛树脂粘合剂的组成和各成分的作用以及甲阶酚醛树脂的合成方法与工艺条件,通过红外光谱对甲阶酚醛树脂及与三种不同含氧酸盐形成络合物的结构比较与分析,说明了该类粘合剂的固化机理,并指出该类粘合剂还存在的问题及今后的发展方向。
The CO2-cure phenolic resin is novel molding and core-making binder, which is composed of high content phenolic resin, oxide salt and alkali and so on. Performance and constitution of phenolic resin are main factor to affect resin-sand＇s compressive strength. The components and its functions of CO2-cure phenolic resin binder were introduced in detail, and the preparation of phenolic resin also is done. Cure mechanism of the binder was expounded by means of the analysis and comparison of Fourier transform infrared spectroscopy of phenolic resin and its complexes, finally puts forward existent problem and development direction of the binder.
出处
《铸造》
CAS
CSCD
北大核心
2006年第6期642-645,共4页
Foundry
