Development of bio-based polymer membranes for a possible recovery of bioactive materials

IF 0.9 Q4 ENGINEERING, CHEMICAL Indian Chemical Engineer Pub Date : 2022-09-19 DOI:10.1080/00194506.2022.2119892

P. Tamilazhagan, S. Ananda kumar, N. Sundar, K. Radha

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Abstract

ABSTRACT In the present investigation, PLA and its blends have been fabricated as bio-based polymeric membranes, which can be possibly utilised for the fractionation of bioactive materials. Moreover, very limited research had been cited on the improvement of toughening properties of biomembranes suited for bioactive recovery. Hence, we made an attempt to synthesise and formulate PLA with its appropriate blends as membranes with increased toughness. In the current study, we have fabricated four different membranes, namely, neat PLA, PLA-CNSL (Cashew nutshell liquid), PLA-PCL (Polycaprolactone) and PLA-PEG (Polyethylene glycol), and a systematic characterisation was performed for all the above-said membranes. From the results obtained, it is understood that the blend of PLA with CNSL showed a reduced contact angle of 3.8° making it extremely hydrophilic. In addition, the same blend also showed tensile stress of 44.53 MPa and elongation of 39.84%. The SEM images clearly revealed a uniform porosity of 41.32% for PLA with CNSL membrane, which is proved to be an appropriate blend with improved toughness and reproducible hydrophilic nature ideally suitable for the membrane filtration process. GRAPHICAL ABSTRACT

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生物基聚合物膜的开发，用于生物活性材料的可能回收

在本研究中，聚乳酸及其共混物制备了生物基聚合物膜，可用于生物活性物质的分离。此外，关于改善生物膜增韧性能的研究非常有限，适合生物活性恢复。因此，我们尝试用适当的共混物合成和配制PLA作为增加韧性的膜。在目前的研究中，我们制备了四种不同的膜，即纯PLA, PLA- cnsl(腰果果液体)，PLA- pcl(聚己内酯)和PLA- peg(聚乙二醇)，并对上述所有膜进行了系统的表征。从得到的结果可以理解，PLA与CNSL共混物的接触角减小了3.8°，使其具有极高的亲水性。拉伸应力为44.53 MPa，伸长率为39.84%。SEM图像清楚地显示，聚乳酸与CNSL膜的均匀孔隙率为41.32%，证明了这是一种合适的共混物，具有增强的韧性和可复制的亲水性，非常适合膜过滤过程。图形抽象

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来源期刊

Indian Chemical Engineer ENGINEERING, CHEMICAL-

CiteScore

3.00

自引率

6.70%

发文量