Effect of cellulose structure and morphology on the properties of poly(butylene succinate-co-butylene adipate) biocomposites

•New PBSA/cellulose composites were prepared and characterized.•A new compatibilizing agent was synthesized and tested.•Amorphized cellulose (AC) was used as filler in comparison to crystalline cellulose.•Using AC, break elongation of composites was preserved also at high filler contents.•AC acceler...

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Bibliographic Details
Published in:Carbohydrate polymers 2015-11, Vol.133, p.408-420
Main Authors: Avolio, R., Graziano, V., Pereira, Y.D.F., Cocca, M., Gentile, G., Errico, M.E., Ambrogi, V., Avella, M.
Format: Article
Language:English
Subjects:
Adipates - chemistry
Biocomposites
Cellulose
Cellulose - chemistry
Epoxy Compounds - chemistry
Filler
Maleic Anhydrides - chemistry
Methacrylates - chemistry
PBSA
Permeability
Structure
Succinates - chemistry
Tensile Strength
Volatilization
Water - chemistry
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Summary:•New PBSA/cellulose composites were prepared and characterized.•A new compatibilizing agent was synthesized and tested.•Amorphized cellulose (AC) was used as filler in comparison to crystalline cellulose.•Using AC, break elongation of composites was preserved also at high filler contents.•AC accelerated the soil burial degradation kinetic of PBSA. Composites based on poly(butylene succinate-co-butylene adipate) (PBSA) containing amorphized and crystalline cellulose reinforcements have been prepared and characterized. In order to improve the polymer/filler interfacial adhesion, an efficient compatibilizing agent has been synthesized by chemical modification of PBSA and characterized by FT-IR, FT-NIR and 1H NMR spectroscopy. Uncompatibilized and compatibilized composites have been tested through morphological, mechanical, calorimetric and thermogravimetric analysis. Moreover, water vapor permeability and biodegradation kinetics of composites have been investigated. The addition to PBSA of cellulose fillers differing from each other by crystallinity degree and morphology, and the use of a compatibilizing agent have allowed modulating tensile and thermal properties, water vapor transmission rate and biodegradation kinetic of the composites.
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2015.06.101