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首页> 外文期刊>Journal of Applied Polymer Science >The effect of acrylate on structure and properties of waterborne polyurethane porous coated fabrics
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The effect of acrylate on structure and properties of waterborne polyurethane porous coated fabrics

机译：丙烯酸酯对水性聚氨酯多孔涂料织物结构与性能的影响

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摘要

Porous-coated fabrics used for synthetic leather were prepared by mechanical foaming method using blends of waterborne polyurethanes (WPUs) and polyacrylate (AC). The effect of AC on structure and properties of WPU/AC coated fabrics was investigated. Fourier transform infrared spectroscopy and differential scanning calorimetry results indicated that there is hydrogen bonding between WPU and AC and the compatibility of the blend system gets worse after AC/WPU ratio is higher than 30/70. Thermogravimetric analysis demonstrated that the thermal stability of porous coatings is improved with increasing AC. Scanning electron microscopy images showed that porous coatings have semi-open cellular structure with a great number of surface pores and window pores, imparting excellent air permeability and water vapor permeability to coated fabrics. On the basis of morphology analysis, the forming process of cell structure of WPU/AC coated fabrics was proposed. Performance tests showed that the overall performance of coated fabrics is best with AC/WPU ratio ranging from 15/85 to 30/70. (C) 2017 Wiley Periodicals, Inc.
机译：通过使用水性聚氨酯（WPU）和聚丙烯酸酯（AC）的混合物，通过机械发泡方法制备用于合成皮革的多孔涂层织物。研究了AC对WPU / AC涂层织物的结构和性质的影响。傅里叶变换红外光谱和差分扫描量热法结果表明，WPU与AC之间存在氢键，并且在AC / WPU比率高于30/70后，混合系统的相容性变差。热重分析表明，随着AC的增加，多孔涂层的热稳定性得到改善。扫描电子显微镜图像显示多孔涂层具有具有大量表面孔和窗孔的半开孔结构，赋予涂覆织物的优异的透气性和水蒸气渗透性。在形态学分析的基础上，提出了WPU / AC涂层织物细胞结构的形成过程。性能测试表明，涂层面料的整体性能最佳，AC / WPU比率从15/85到30/70的范围。 （c）2017 Wiley期刊，Inc。

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