采用二乙醇胺对双酚A型环氧树脂(E-44)进行化学改性引入亲水性基团,制备出了稳定性良好的水性环氧树脂.通过研究二乙醇胺用量、反应温度对水性环氧树脂体系稳定性的影响,确定了最佳的原料配比;研究了水性环氧树脂的粒径分布.研究表明:随着二乙醇胺用量的增加,环氧树脂的亲水性增强.随着二乙醇胺与环氧基物质的量比的增大,水性环氧树脂的粒径变小,当二乙醇胺与环氧基的物质的量比为0.5:1时,能够制备出性能稳定的环氧树脂水溶液.
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