先合成了聚硅氧烷阴离子乳液以及链中含硅烷偶联剂和含氟单体的(甲基)丙烯酸酯聚合物乳液,并且利用羟基缩合反应,将2种乳液混合反应,通过乳液接枝共聚的方法合成了一种高硅含量的有机硅改性氟代(甲基)丙烯酸酯聚合物乳液,并采用了红外光谱对聚合物乳液分子进行了表征.测试结果表明:有机硅质量分数为20％、有机氟质量分数为12％的聚合物乳液涂膜综合性能最佳,较不含有机硅氟的聚合物乳液涂膜,其水表面接触角由77.5°增加到96°,24 h吸水率由5.3％下降到2.3％,耐水性大大增加;玻璃化转变温度由8.53 ℃下降到-2.74℃,聚合物分子链的柔顺性有所提高;同时乳液涂膜的初始分解温度提高了77 ～ 92℃,热稳定性也明显提高,说明此方法合成的高硅含量硅丙乳液可作为一类具有优良疏水性及低表面能的功能材料得以应用.
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