Journal
CARBOHYDRATE POLYMERS
Volume 84, Issue 1, Pages 203-210Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2010.11.024
Keywords
Biodegradable; Nanocomposites; Starch; Nanocrystals; Waxy maize; Glycerol
Categories
Funding
- Universidad de Buenos Aires [UBACyT X094]
- Consejo Nacional de Investigaciones Cientificas y Tecnicas de la Republica Argentina [PIP 11220090100699, PIP 6250-05]
- Agencia Nacional de Investigaciones Cientificas y Tecnologicas de la Republica [PICT Rakes 2006-02153]
- Ministry of Science, Technology and Productive Innovation of the Argentine Republic (MINCYT)
- ECOS-Sud [A08E02]
Ask authors/readers for more resources
Fully bio-based nanocomposites were prepared using starch nanoparticles obtained by acidic hydrolysis of waxy maize starch granules as reinforcement. The same type of starch, which contains 99 wt.% amylopectin, was used to prepare glycerol plasticized and unplasticized matrices. The X-ray diffraction pattern of the plasticized reinforced materials displays both A and B-type peaks, showing that the crystalline structure of the nanocrystals was not affected by processing. The storage modulus of the composite material increases, with respect to the unfilled film, by 470% at 50 degrees C, while the permeability increases by 70%. This is probably due to a good association of glycerol with the nanoparticles leading to a fibrillar structure, studied by scanning electron microscopy of plasticized and unplasticized composites. (C) 2010 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available