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    新產品·新技術信息

    新型氟化丙烯酸酯乳液聚合的穩定性及其性能研究

    來源:林中祥膠粘劑技術信息網2010年12月27日

    閱讀次數:

    Stability of Emulsion Polymerization of New Fluorinated Acrylate Emulsion and Its Characterization 

    Authors: Lijun Chena; Hong-xin Shia

    Abstract

    The new fluorinated acrylate emulsion was synthesized by using the intermediate perfluorous nonene and 2-hydroxyethyl methacrylate as the staring reactants via semi-continuous seeded emulsion polymerization. The structures, glass transition temperature, thermal property and water repellency of the fluorinated acrylate emulsion were characterized with FTIR, differential scanning calorimetry, thermal analysis, and contact angle meter. Influences of many factors such as the theoretical solid content, the temperature of the emulsion polymerization on the stability of the emulsion polymerization, the added amount of emulsifiers and the added amount of the initiator were studied. Results show that the stability of the emulsion polymerization is fairly good when the theoretical solid content is below 30% and the reaction temperature is 80°C and the added amount of emulsifiers and the initiator are 6.0-8.0% and 2.0% respectively. In comparison with the acylate emulsion, the thermal stability of the fluorinated acrylate emulsion is decreased but the water repellency of the fluorinated acrylate emulsion is greatly increased.

    Keywords:
    Fluorinated acrylate emulsion; stability of emulsion polymerization; thermal stability; water repellency
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