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Microfibrillated cellulose film with enhanced mechanical and water-resistant properties by glycerol and hot-pressing treatment

机译：通过甘油和热压处理具有增强的机械和防水性能的微纤化纤维素膜

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In this study, the effects of glycerol and hot-pressing treatment were investigated to improve the water-resistance and mechanical properties of microfibrillated cellulose (MFC) films. Glycerol is commonly used to remedy the brittleness of MFC films; however, it substantially reduces the mechanical strength and water resistance of these films. A hot-pressing treatment is a simple and effective way to enhance these degraded properties. A combination of a glycerol additive and hot-pressing treatment was considered an economical and efficient approach to improve the performance of MFC films. The wet strength of a glycerol-plasticized, hot-pressed MFC film prepared using a glycerol solution with a concentration of 2.5% (v/v) (H-MFC/2.5%G) was almost thirteen times higher than that of an unmodified MFC film. In addition, the elongation and tensile strength of H-MFC/2.5%G were found to be 85% and 37% higher than those of the unmodified MFC film, respectively.
机译：在本研究中，研究了甘油和热压处理对微纤维纤维素（MFC）薄膜耐水性和力学性能的影响。甘油通常用于修复MFC膜的脆性；然而，它大大降低了这些薄膜的机械强度和耐水性。热压处理是一种简单而有效的方法来增强这些退化的性能。甘油添加剂和热压处理相结合被认为是提高MFC薄膜性能的经济有效的方法。使用浓度为2.5%（v/v）（H-MFC/2.5%G）的甘油溶液制备的甘油增塑热压MFC膜的湿强度几乎是未改性MFC膜的13倍。此外，H-MFC/2.5%G薄膜的延伸率和拉伸强度分别比未改性的MFC薄膜高85%和37%。

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