将磺酸型聚酯多元醇、异佛尔酮二异氰酸酯(IPDI)和三羟甲基丙烷(TMP)在无有机溶剂参与的情况下进行预缩聚,以硅烷偶联剂γ-氨丙基三乙氧基硅烷(KH550)作为改性剂,加入双官能团单体甲基丙烯酸-β-羟乙酯(HEMA),得到含乙烯基和有机硅封端的聚氨酯作为种子乳液,然后与甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)混合单体共聚,合成了有机硅改性磺酸型聚氨酯/丙烯酸酯复合乳液.红外光谱的表征确定了有机硅改性磺酸型聚氨酯/丙烯酸酯复合乳液的化学结构；透射电子显微镜观察证实了此复合乳液具有明显的核壳结构；热重分析表明,经有机硅和丙烯酸酯改性后,胶膜的最大热失重温度提高了20℃,X射线衍射分析表明胶膜的结晶度降低,有利于提高膜的韧性.力学性能测试及吸水率测试结果表明,当有机硅含量为1.9％时,胶膜的拉伸强度最高达到25.03 MPa,断裂伸长率为328％,此时膜的吸水率最低.
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