Abstract:
:Green biocomposites based on corn starch plasticized with isosorbide and glycerol and filled with microcrystalline cellulose (MCC) were processed. The structural interactions, dynamomechanical properties, water absorption, and soil biodegradability were investigated by different techniques considering the effect of the type and amount of plasticizer and the MCC addition. The changes along the time of the structural interactions and the dynamomechanical properties of these materials and the influence of the retrogradation phenomenon were also studied. The use of isosorbide as plasticizer instead of glycerol improved the stiffness, the water absorption and the biodegradation rate of thermoplastic starch (TPS). Moreover, no evidence of retrogradation for isosorbide was observed. An isosorbide content of 35% and the addition of MCC filler enhanced in a greater extent these properties with a complete biodegradability in 7 month. These green biocomposites can be an alternative for food packaging applications.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Area MR,Montero B,Rico M,Barral L,Bouza R,López Jdoi
10.1016/j.ijbiomac.2020.08.075subject
Has Abstractpub_date
2020-12-01 00:00:00pages
2028-2037eissn
0141-8130issn
1879-0003pii
S0141-8130(20)34163-5journal_volume
164pub_type
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journal_title:International journal of biological macromolecules
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journal_title:International journal of biological macromolecules
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