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首页> 外文期刊>Journal of Applied Polymer Science >Microencapsulation and application of fluorine-free water repellent agent-AH102
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Microencapsulation and application of fluorine-free water repellent agent-AH102

机译：无氟憎水剂-AH102的微囊化及应用

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摘要

Fluorine-free water repellent agent, AH102, was microencapsulated by interfacial polymerization with polyurethane as shell material to restrict its hydrolysis and improve its dispersibility in water. The appearance of the resultant microcapsules was characterized with optical microscope and scanning electron microscope. Chemical structure of microcapsules was identified with Fourier-transforming infrared spectrometer. The size and size distribution of the microcapsules were determined by laser particle size analyzer. The thermal property of the microcapsules was investigated by thermogravimetric analysis. The stability and dispersibility of the microcapsules in aqueous medium were characterized by evaluating the static water contact angles of the treated cotton fabrics with the emulsions of unencapsulated and microencapsulated AH102 at different storage intervals. The results showed that AH102 was successfully encapsulated and its stability and dispersibility in water were greatly improved. As expected, the emulsion of the microencapsulated AH102 became more stable than that of the unencapsulated one at water repellence to cotton fabric with increasing storage intervals.
机译：通过以聚氨酯为壳材料的界面聚合，将无氟防水剂AH102微囊化，以限制其水解并提高其在水中的分散性。用光学显微镜和扫描电子显微镜表征所得微胶囊的外观。用傅里叶变换红外光谱仪鉴定了微胶囊的化学结构。通过激光粒度分析仪确定微胶囊的尺寸和尺寸分布。通过热重分析研究了微胶囊的热性质。通过评估处理后的棉织物与未封装和微封装的AH102乳液在不同存储间隔下的静态水接触角来表征微胶囊在水性介质中的稳定性和分散性。结果表明，AH102被成功包封，在水中的稳定性和分散性大大提高。如预期的那样，随着对棉织物的疏水性的增加，微囊化的AH102的乳液比未囊化的AH102的乳液更稳定。

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