采用核壳乳液聚合方法制备了羟值为 1.5%的低羟丙烯酸酯乳液。研究了聚合物理论 Tg、壳中羟基质量分数、核聚合物 Hansch参数对双组分漆膜干燥速度的影响。结果表明:漆膜干燥速度随理论 Tg、壳中羟基质量分数及核聚合物 Hansch参数的增加而加快,当 Tg为 50 ℃、壳中羟基质量分数为 1.1%、核聚合物 Hansch参数为 3.43时,漆膜于 25 ℃、60%相对湿度下的实干时间可缩短至 95 min,在大巴、工程机械涂装等需要快干的领域具备潜在应用价值。
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