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- W2891043744 abstract "Biodegradable potato starch/PVA samples containing different concentrations of rosin were prepared by melt-mixing in order to study the enhancement of the properties of native starch films. Glycerol and polyvinyl alcohol (PVA) are commonly used as plasticizers of starch. Their relatively low molecular weight (compared with starch) contributes to a good processability. Rosin is a renewable product whose incorporation in the starch/PVA matrix induces processing aid and reinforcing effects. Its relatively high molecular weight might prevent its migration to the surface of the final product. Water content, solubility in water, mechanical properties, microstructure and dynamic mechanical analysis of the samples were studied. The addition of 8% rosin to starch/PVA blends led to tensile strength values higher than 10 MPa and elongation at break values close to 2000%, values comparable to those offered by conventional polymers used in food packaging, for example LDPE. Furthermore, starch compounds have low cost and high biodegradability." @default.
- W2891043744 created "2018-09-27" @default.
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- W2891043744 date "2018-12-01" @default.
- W2891043744 modified "2023-10-16" @default.
- W2891043744 title "Study of the behavior of biodegradable starch/polyvinyl alcohol/rosin blends" @default.
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- W2891043744 doi "https://doi.org/10.1016/j.carbpol.2018.08.137" @default.
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