己二酸
生物高聚物
共聚酯
材料科学
聚乳酸
极限抗拉强度
混溶性
蛋清
热稳定性
可生物降解聚合物
聚合物
聚合物混合物
复合材料
聚酯纤维
延伸率
化学工程
化学
有机化学
工程类
共聚物
作者
Boniface J. Tiimob,Vijaya K. Rangari,Gregory Mwinyelle,Woubit Abdela,Paul G. Evans,Nicholas L. Abbott,Temesgen Samuel,Shaik Jeelani
标识
DOI:10.1016/j.fpsl.2018.01.001
摘要
Extruded 70/30 poly (butylene adipate-co-terephthalate) (PBAT)/polylactic acid (PLA) blends incorporated with 0.5, 1.0, 1.5 and 2 wt.% of egg white [albumen (ABM)] were investigated to determine the effect of ABM on the microstructure and antimicrobial properties of PBAT/PLA blend. Microstructural analysis revealed immiscibility in the two polymers, due to the presence of distinct melting points, heterogeneous phase and vibrational frequencies unique to each polymer. Thermal and tensile testing also suggests that the inclusion of ABM tailored the blend and significantly improved its thermal stability and flexibility, since 0.5 and 1.0% (wt./wt.) ABM led to 490 and 432% improvement in elongation, respectively. Furthermore, the ternary blend films in contact with Salmonella enteritidis (S. enteritidis) showed significant inhibition to growth for 24 h, but some bacterial cells grew when the film were removed. This study demonstrates the fabrication of ABM tuned potential biopolymer packaging flexible blend with bacteriostatic properties.
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