Polylactide/lignin blends: Effects of processing conditions on structure and thermo-mechanical properties

Abstract : The effect of processing temperature and time on polylactide/lignin blends was evaluated. Two blends, one commercial and one prepared mixing polylactide (PLA) with different lignin contents, were processed at 190 and 170 °C for different mixing times. The commercial blend was a blend of PLA with 5 mass% of soda lignin and 15.4 mass% of softwood while, for the laboratory-made PLA/lignin, the content of lignin varied from 10 to 25 mass%. Both the blends showed significant degradation of the mechanical properties when processed at 190 °C. The use of lower processing temperature (i.e., 170 °C) showed minor degradation on both the blends. The lignin content showed a marked effect on the degradation behavior of the blends for all the processing temperatures tested. © 2017, Akadémiai Kiadó, Budapest, Hungary.
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Submitted on : Wednesday, October 18, 2017 - 3:01:29 PM
Last modification on : Thursday, March 14, 2019 - 1:02:10 PM

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G. Cicala, G. Saccullo, I. Blanco, S. Samal, S. Battiato, et al.. Polylactide/lignin blends: Effects of processing conditions on structure and thermo-mechanical properties. Journal of Thermal Analysis and Calorimetry, Springer Verlag, 2017, 130 (1), pp.515-524. ⟨10.1007/s10973-017-6253-0⟩. ⟨hal-01618787⟩

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