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Compatibilities and properties of poly lactide/poly (methyl acrylate) grafted chicken feather composite: Effects of graft chain length
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-01-20 , DOI: 10.1002/app.48981 Sikai Chen 1 , Naruhito Hori 1 , Mikio Kajiyama 2 , Akio Takemura 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-01-20 , DOI: 10.1002/app.48981 Sikai Chen 1 , Naruhito Hori 1 , Mikio Kajiyama 2 , Akio Takemura 1
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Surface modified poly(methyl acrylate) (PMA) grafted chicken feather fiber was applied as a reinforcement for polylactide (PLA)‐based composite film. The PMA grafted feather fiber with different PMA lengths were obtained for surface initiated Cu(0)‐mediated reversible‐deactivation radical polymerization. PLA‐based composite films with different unmodified or PMA‐grafted chicken feather fiber loading were prepared by solvent casting. Grafting PMA onto feather fiber enhanced interfacial bonding. Cracks and voids between matrix and fiber were eliminated. Thermal stability of these films also improved after introducing PMA. Feather fiber with high graft ratio showed worse dispersity in PLA due to its self‐aggregation. The heterogeneous nucleation agent behavior of feather grafted with longer PMA was also suppressed. Tensile tests showed that after modification, tensile strength and modulus was able to increase twice at 20% fiber loading. However, increasing PMA length improved break elongation but strength and modulus would drop slightly. These results indicated that grafting short PMA chain onto feather fiber surface was an effective and optimized method to improve dispersity and mechanical properties especially for higher filler loading.
中文翻译：
聚丙交酯/聚（丙烯酸甲酯）接枝鸡羽毛复合材料的相容性和性能：接枝链长度的影响
表面改性的聚丙烯酸甲酯（PMA）接枝鸡羽毛纤维被用作聚乳酸（PLA）基复合膜的增强材料。获得了具有不同PMA长度的PMA接枝羽毛纤维，用于表面引发的Cu（0）介导的可逆失活自由基聚合。通过溶剂流延制备具有不同未改性或PMA接枝鸡羽毛纤维载量的PLA基复合膜。将PMA接枝到羽毛纤维上可增强界面粘合力。消除了基体和纤维之间的裂缝和空隙。引入PMA后，这些薄膜的热稳定性也得到了改善。具有高接枝率的羽毛纤维由于其自身聚集而在PLA中显示出较差的分散性。用较长的PMA接枝的羽毛的异质成核剂行为也得到抑制。拉伸测试表明，改性后，在20％的纤维负载下，拉伸强度和模量能够增加两倍。但是，增加PMA长度可以改善断裂伸长率，但强度和模量会略有下降。这些结果表明，短PMA链接枝到羽毛纤维表面是一种有效且优化的方法，可改善分散性和机械性能，尤其是对于较高的填充量。
更新日期：2020-01-20
中文翻译：
聚丙交酯/聚（丙烯酸甲酯）接枝鸡羽毛复合材料的相容性和性能：接枝链长度的影响
表面改性的聚丙烯酸甲酯（PMA）接枝鸡羽毛纤维被用作聚乳酸（PLA）基复合膜的增强材料。获得了具有不同PMA长度的PMA接枝羽毛纤维，用于表面引发的Cu（0）介导的可逆失活自由基聚合。通过溶剂流延制备具有不同未改性或PMA接枝鸡羽毛纤维载量的PLA基复合膜。将PMA接枝到羽毛纤维上可增强界面粘合力。消除了基体和纤维之间的裂缝和空隙。引入PMA后，这些薄膜的热稳定性也得到了改善。具有高接枝率的羽毛纤维由于其自身聚集而在PLA中显示出较差的分散性。用较长的PMA接枝的羽毛的异质成核剂行为也得到抑制。拉伸测试表明，改性后，在20％的纤维负载下，拉伸强度和模量能够增加两倍。但是，增加PMA长度可以改善断裂伸长率，但强度和模量会略有下降。这些结果表明，短PMA链接枝到羽毛纤维表面是一种有效且优化的方法，可改善分散性和机械性能，尤其是对于较高的填充量。
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