对初始含水率＞70％的MgO涂层进行微波干燥实验,采用响应曲面法中心组合设计对工艺参数进行优化,实验结果表明:料功比、干燥时间、初始含水率对微波干燥涂层的相对脱水率都有影响.影响的显著程度顺序为:干燥时间＞料功比＞初始含水率.结合响应曲面优化及产品质量评分的方法得到了第一阶段干燥的最佳工艺条件:微波功率280 W,干燥时间30 min,涂层厚度2.0 mm干燥效率最高,预测的相对脱水率为37.87％,而实测的相对脱水率为37.55％,实验值与预测值偏差为-0.32％,响应曲面优化有效.
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