Influence of Lignin Content on Morphology and Properties of Poly(Lactic Acid)/Lignin Composite Films

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In this work, PLA/lignin composite films have been developed for packaging films. The composite films were prepared by a solution casting method. The lignin was prepared from black liquor from the paper industry, by extracting with acetic acids at 50°C. The lignin contents in PLA matrix were 0.5, 1, 3 and 5 phr. Fourier-transformed infrared spectroscopy (FTIR) analysis demonstrated similar structure of lignin precipitation when compared with the standard lignin. The addition of lignin reduced the tensile strength of PLA/lignin films, whereas the composite film at 1 phr of lignin was more elongation than neat PLA. Scanning electron microscopy (SEM) micrographs showed the roughness surface and voids in the composite films, except 1 phr and 5 phr of lignin with a better interface between PLA and lignin. UV-Vis analysis indicated reduced light transmission with increasing lignin contents in UV region.

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155-161

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March 2022

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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[1] N. Mohamad, M.M. Mazlan, I.S.M.A. Tawakkal, R.A. Talib, L.K. Kian, H. Fouad, M. Jawaid, Development of active agents filled polylactic acid films for food packaging application, Int. J. Biol. Macromol. 163 (2020) 1451-1457.

DOI: 10.1016/j.ijbiomac.2020.07.209

Google Scholar

[2] S. Domenek, A. Louaifi, A. Guinault, S. Baumberger, Potential of lignins as antioxidant additive in active biodegradable packaging materials, J. Polym. Environ. 21(3) (2013) 692-701.

DOI: 10.1007/s10924-013-0570-6

Google Scholar

[3] B. Rukmanikrishnan, S. Ramalingam, S.K. Rajasekharan, J. Lee, J. Lee, Binary and ternary sustainable composites of gellan gum, hydroxyethyl cellulose and lignin for food packaging applications: Biocompatibility, antioxidant activity, UV and water barrier properties, nt. J. Biol. Macromol. 153 (2020) 55-62.

DOI: 10.1016/j.ijbiomac.2020.03.016

Google Scholar

[4] S. Kamble, Y. Bhattacharyulu, Selective separation of biomass from black liquor waste by inorganic and organic acids, Int. J. Adv. Res. 3(1) (2015) 684-692.

Google Scholar

[5] Z. Liu, X.G. Luo, Y. Li, L. Li, Y. Huang, Extraction of lignin from pulping black liquor by organic acid, Mater. Sci. Forum 620-622 (2009) 571-574.

DOI: 10.4028/www.scientific.net/msf.620-622.571

Google Scholar

[6] M. Namane, F.J. García-Mateos, B. Sithole, D. Ramjugernath, J. Rodriguez-Mirasol, T. Cordero, Characteristics of lignin precipitated with organic acids as a source for valorisation of carbon products, Cell. Chem. Technol. 50(3-4) (2016) 355-360.

Google Scholar

[7] M. Hamzah, S. Bowra, P. Cox, Purity and structural composition of lignin isolated from Miscanthus x giganteus by sub-critical water extraction with associated modifiers, J. Agric. Food Eng 1 (2020) 1-12.

DOI: 10.37865/jafe.2020.0010

Google Scholar

[8] E. Triwulandari, M. Ghozali, D. Sondari, M. Septiyanti, Y. Sampora, Y. Meliana, S. Fahmiati, W.K. Restu, A. Haryono, Effect of lignin on mechanical, biodegradability, morphology, and thermal properties of polypropylene/polylactic acid/lignin biocomposite, Plast. Rubber Compos. 48(2) (2019) 82-92.

DOI: 10.1080/14658011.2018.1562746

Google Scholar

[9] F.H.Y. Lui, Y. Kurokochi, H. Narita, Y. Saito, M. Sato, The effects of chemical components and particle size on the mechanical properties of binderless boards made from oak (Quercus spp.) logs degraded by shiitake fungi (Lentinula edodes), J. Wood Sci. 64(3) (2018) 246-255.

DOI: 10.1007/s10086-018-1695-y

Google Scholar

[10] W. Yang, E. Fortunati, F. Dominici, G. Giovanale, A. Mazzaglia, G. Balestra, J. Kenny, D. Puglia, Synergic effect of cellulose and lignin nanostructures in PLA based systems for food antibacterial packaging, Eur. Polym. J. 79 (2016) 1-12.

DOI: 10.1016/j.eurpolymj.2016.04.003

Google Scholar

[11] M. Ghozali, E.N. Rohmah, Synthesis of PP-g-MA as compatibilizer for PP/PLA biocomposites: Thermal, mechanical and biodegradability properties, AIP Conf. Proc. 2017, p.020044.

DOI: 10.1063/1.4973171

Google Scholar

[12] X. Li, N. Hegyesi, Y. Zhang, Z. Mao, X. Feng, B. Wang, B. Pukánszky, X. Sui, Poly (lactic acid)/lignin blends prepared with the Pickering emulsion template method, Eur. Polym. J. 110 (2019) 378-384.

DOI: 10.1016/j.eurpolymj.2018.12.001

Google Scholar

[13] H. Sadeghifar, A. Ragauskas, Lignin as a UV light blocker—a review, Polym. 12(5) (2020) 1134.

DOI: 10.3390/polym12051134

Google Scholar