将环氧树脂与丙烯酸酯类单体、有机硅接枝共聚,制得有机硅/环氧改性水性丙烯酸树脂.在采用傅里叶红外光谱(FT-IR)对聚合物结构表征的基础上,采用动态光散射粒径仪(DLS)、热重分析仪(TGA)及原子力显微镜(AFM)对共聚物的水分散体及其涂膜进行了分析表征;同时考察了引发剂偶氮二异丁腈用量、环氧树脂加料方式及用量、有机硅用量等因素对乳液和涂膜性能的影响.结果表明:当引发剂用量为3%(占丙烯酸单体总质量,下同),环氧树脂(E-44)用量为4%,有机硅用量为3%时,合成的水性树脂乳液呈白色泛蓝光,具有良好的贮存稳定性,且涂膜的附着力、硬度、耐水性及耐热性等良好.
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