采用具有核壳结构的丙烯酸酯自交联乳液,研究其在红外干燥下的成膜及性能,并利用Routh-Russel模型优化确定其成膜机理,优化了成膜条件.研究表明,通过红外干燥可以实现高玻璃化温度(Tg)乳液的快速成膜.聚合物乳液Tg和湿膜厚度H能够改变Routh-Russel模型的参数λ和Pe,继而影响乳胶粒子的成膜性能.Tg＜58℃及H≤400 μm时,乳胶粒子受毛细管力变形,形成连续透明的聚合物膜,其硬度相比于室温自然干燥的涂膜高出2～5倍,且耐水性显著增加.原子力显微镜(AFM)表征证实红外干燥确实能够促进乳胶粒子的融并变形.
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