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Multi‐Functional Edible Film with Excellent UV Barrier Performance and Accurate Instant Ion Printing Capability
Advanced Sustainable Systems ( IF 6.5 ) Pub Date : 2020-05-11 , DOI: 10.1002/adsu.202000043 Zi Wang 1 , Lirong Tang 1 , Fengcai Lin 1 , Yanping Shen 1 , Yandan Chen 1 , Xuerong Chen 1 , Biao Huang 1 , Beili Lu 1
Advanced Sustainable Systems ( IF 6.5 ) Pub Date : 2020-05-11 , DOI: 10.1002/adsu.202000043 Zi Wang 1 , Lirong Tang 1 , Fengcai Lin 1 , Yanping Shen 1 , Yandan Chen 1 , Xuerong Chen 1 , Biao Huang 1 , Beili Lu 1
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Using natural biomass resources to synthesize degradable membrane materials, which may replace traditional plastics, is one of the strategies that can reduce pollution. Herein, a mechanochemical method for preparation of degradable biofilm tannic acid‐modified microfibrillated cellulose (TA@MFC)‐G is proposed. The method involves modification of a microfibrillated cellulose (MFC) with plant polyphenol (tannic acid), followed by complexation with gelatin in an aqueous solution. Compared with pure gelatin film, MFC film has higher intrinsic crystallinity and thermal stability. Due to the synergistic effect of tannin and MFC, the mechanical strength and flexibility of the films are improved; its tensile strength is higher than 75 MPa and its elongation at break is as high as 13%. The films also have high UV blocking ability. Finally, the films are printed using Fe3+ ions or conventional ink, from which it is observed that the pattern printed using Fe3+ ions has higher solvent resistance and water repellency compared to that printed using conventional ink. This biodegradable film may have promising applications as food packaging materials or in other industries.
中文翻译：
多功能可食用膜，具有出色的紫外线阻隔性能和准确的即时离子打印能力
利用天然的生物质资源合成可降解的膜材料（可以替代传统的塑料）是可以减少污染的策略之一。本文提出了一种机械化学方法，用于制备可降解生物膜单宁酸改性的微纤化纤维素（TA @ MFC）-G。该方法包括用植物多酚（鞣酸）修饰微纤化纤维素（MFC），然后在水溶液中与明胶络合。与纯明胶薄膜相比，MFC薄膜具有更高的固有结晶度和热稳定性。由于单宁和MFC的协同作用，提高了薄膜的机械强度和柔韧性；其抗拉强度高于75 MPa，断裂伸长率高达13％。该膜还具有高的紫外线阻挡能力。最后，3+离子或常规油墨，从中观察到，与使用常规油墨印刷的图案相比，使用Fe 3+离子印刷的图案具有更高的耐溶剂性和疏水性。这种可生物降解的薄膜作为食品包装材料或在其他行业中具有广阔的应用前景。
更新日期：2020-07-07
中文翻译：
多功能可食用膜，具有出色的紫外线阻隔性能和准确的即时离子打印能力
利用天然的生物质资源合成可降解的膜材料（可以替代传统的塑料）是可以减少污染的策略之一。本文提出了一种机械化学方法，用于制备可降解生物膜单宁酸改性的微纤化纤维素（TA @ MFC）-G。该方法包括用植物多酚（鞣酸）修饰微纤化纤维素（MFC），然后在水溶液中与明胶络合。与纯明胶薄膜相比，MFC薄膜具有更高的固有结晶度和热稳定性。由于单宁和MFC的协同作用，提高了薄膜的机械强度和柔韧性；其抗拉强度高于75 MPa，断裂伸长率高达13％。该膜还具有高的紫外线阻挡能力。最后，3+离子或常规油墨，从中观察到，与使用常规油墨印刷的图案相比，使用Fe 3+离子印刷的图案具有更高的耐溶剂性和疏水性。这种可生物降解的薄膜作为食品包装材料或在其他行业中具有广阔的应用前景。
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