聚氨酯改性氟代聚丙烯酸酯的合成及应用

Synthesis and application of polyurethane modified fluorinated polyacrylate

摘要:

在聚氨酯预聚体中，以全氟己基乙基丙烯酸酯（C6F）、丙烯酸羟丙酯（HPAA）为聚合单体，偶氮二异丁腈(AIBN)为引发剂进行自由基聚合，制得聚氨酯改性的氟代聚丙烯酸酯（PUAF）。通过红外光谱、场发射扫描电镜（FE-SEM）等对PUAF的结构、成膜形貌以及应用性能进行研究。PUAF能在纤维表面形成一层致密的疏水膜。在PUAF的用量为1g/100g乙酸乙酯，并在180℃高温烘焙定型1.5min的工艺条件下，织物与水的接触角达到133.5?。

Abstract:

The polyurethane modified fluorinated polyacrylate (PUAF) is obtained with 2-(perfluorohexy) Ethyl Acrylate(C6F) and hydroxypropyl acrylate as polymerization monomers, azobisisobutyronitrile as a radical polymerization initiator, in the polyurethane prepolymer. The structure, film morphology and application performance of PUAF were studied by infrared spectroscopy, nuclear magnetic resonance spectroscopy (1H-NMR) and field spectrum scanning electron microscopy (FE-SEM), etc. PUAF can form dense membrane which is hydrophobic on the surface of fiber.The dried fabric samples was submerged for one time into 1％solution of PUAF in ethyl acetate ,then dried at 180℃during 1.5min.The water contact angle of fabric is133.5 ?