Properties and Degradation Performances of Biodegradable Poly(lactic acid)/Poly(3-hydroxybutyrate) Blends and Keratin Composites.
Properties and Degradation Performances of Biodegradable Poly(lactic acid)/Poly(3-hydroxybutyrate) Blends and Keratin Composites.
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DOI：
10.3390/polym13162693
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发表时间：
2021-08-12
期刊：
影响因子：
5
通讯作者：
Mosnáček J
中科院分区：
文献类型：
--
作者：
Danko M;Mosnáčková K;Vykydalová A;Kleinová A;Puškárová A;Pangallo D;Bujdoš M;Mosnáček J
从环境方面来看，角蛋白废物的回收是重要的需求之一，因此也是许多研究小组当前的课题之一。在这里，碱性水解后的角蛋白水解产物在1- 20wt%范围内的负载下用作增塑聚乳酸/聚（3-羟基丁酸酯）共混物中的填充剂。复合材料的红外光谱进行了表征，并使用凝胶渗透色谱法（GPC）的矩阵的摩尔质量的变化，在加工过程中的角蛋白的影响进行了研究。采用热重分析（TGA）和差示扫描量热法（DSC）研究了复合材料的热性能。通过拉伸试验和动态力学热分析研究了角蛋白负载量对复合材料力学性能的影响。通过测定可浸提产物量、GPC、DSC和NMR研究了基质和复合材料的水解降解。最后，研究了微生物的生长和降解。结果发现，角蛋白在增塑的PLA/PHB共混物中的掺入提供了具有良好的热性能和机械性能以及在常见环境条件下改善的降解的材料，表明其在农业和/或包装中的可能应用。
From environmental aspects, the recovery of keratin waste is one of the important needs and therefore also one of the current topics of many research groups. Here, the keratin hydrolysate after basic hydrolysis was used as a filler in plasticized polylactic acid/poly(3-hydroxybutyrate) blend under loading in the range of 1–20 wt%. The composites were characterized by infrared spectroscopy, and the effect of keratin on changes in molar masses of matrices during processing was investigated using gel permeation chromatography (GPC). Thermal properties of the composites were investigated using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The effect of keratin loading on the mechanical properties of composite was investigated by tensile test and dynamic mechanical thermal analysis. Hydrolytic degradation of matrices and composites was investigated by the determination of extractable product amounts, GPC, DSC and NMR. Finally, microbial growth and degradation were investigated. It was found that incorporation of keratin in plasticized PLA/PHB blend provides material with good thermal and mechanical properties and improved degradation under common environmental conditions, indicating its possible application in agriculture and/or packaging.
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影响因子：
5.1
作者：
Borska, Katarina;Kasak, Peter;Mosnacek, Jaroslav
通讯作者：
Mosnacek, Jaroslav
影响因子：
5
作者：
Aranberri, Ibon;Montes, Sarah;Grande, Hans-Juergen
通讯作者：
Grande, Hans-Juergen
影响因子：
6
作者：
Arrieta, Marina P.;Lopez, Juan;Rayon, Emilio
通讯作者：
Rayon, Emilio
影响因子：
3
作者：
Bhasney, Siddharth Mohan;Patwa, Rahul;Katiyar, Vimal
通讯作者：
Katiyar, Vimal
影响因子：
5.9
作者：
Abdelwahab, Mohamed A.;Flynn, Allison;Chiellini, Emo
通讯作者：
Chiellini, Emo