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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Characterization of Crosslinking Waterborne Fluorinated Polyurethane-Acrylate with Core-Shell Structure
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Synthesis and Characterization of Crosslinking Waterborne Fluorinated Polyurethane-Acrylate with Core-Shell Structure

机译：核-壳结构交联水性氟代丙烯酸聚氨酯的合成与表征

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Crosslinking core-shell emulsions of waterborne fluorinated polyurethane-acrylate (WFPUA) were successfully synthesized using a solvent-free method. The crosslinkers of diacetone acrylamide and adipic dihydrazide were introduced into the WFPUA emulsions. The physical properties of hybrid emulsions such as the average particle size, stability, and viscosity were characterized. The core-shell of crosslinking WFPUA emulsion synthesized in this study was observed by transmission electron microscopy. Then, the results of Fourier transform infrared spectroscopy, atomic force microscopy, and X-ray photoelectron spectroscopy indicated that the fluorinated monomer (FA) had been polymerized into the crosslinking waterborne polyurethane-acrylate polymer, and the fluorinated groups have evident enrichment on the film-air surface with the increase of FA content. At the same time, the thermal properties, water repellent/antifouling properties, and mechanical properties were measured. Moreover, the thermal properties and the elongation are raised but tensile stress and shore hardness are decreased with the increase of FA content. VC 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40970.
机译：使用无溶剂方法成功合成了水性氟化聚氨酯-丙烯酸酯（WFPUA）的交联核-壳乳液。将双丙酮丙烯酰胺和己二酸二酰肼的交联剂引入WFPUA乳液中。表征了杂化乳液的物理性质，例如平均粒径，稳定性和粘度。通过透射电镜观察了本研究合成的交联WFPUA乳液的核-壳结构。然后，傅里叶变换红外光谱，原子力显微镜和X射线光电子能谱的结果表明，氟化单体（FA）已经聚合成交联的水性聚氨酯-丙烯酸酯聚合物，并且氟化基团在薄膜上明显富集。空气表面随FA含量的增加。同时，测量了热性能，疏水/防污性能和机械性能。此外，随着FA含量的增加，热性能和伸长率提高，但拉伸应力和肖氏硬度降低。 VC 2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2014，131，40970。

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