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- W2484062024 endingPage "314" @default.
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- W2484062024 abstract "Fabrication of biopolymers suitable for food packaging applications is currently an active area of research worldwide due to biodegradable and environmental-friendly nature of these polymers. Biodegradable polymers obtained from microbial fermentation, especially polyhydroxyalkaonates (PHAs), utilizing cheap biomass sources, can be tuned to incorporate desired properties for different applications by altering the fraction of the hydroxyalkanoates. Nanocellulose can be employed as a unique filler material to enhance the properties of biopolymers, such as polyhydroxyalkanoates, while ensuring that the biodegradable nature is retained. Nanofillers such as cellulose nanocrystals (CNC) when dispersed into the polymer matrix of polyhydroxybutyrate (PHB) can improve the physical, barrier, thermal, mechanical and rheological properties of the biopolymer. However, CNC is hydrophilic whereas PHB, derived from microbial source, is hydrophobic in nature. This limits the dispersion of CNC in the polymer matrix which in turn can adversely affect the properties of the resulting nanocomposite. The optimum amount of CNC, ideal for improvement of biopolymer properties, has been observed to be ~2% as higher fractions lead to nanoparticle agglomeration or polymer degradation during processing. This chapter begins with a general introduction to polyhydroxyalkanoates (focusing on derivatives of PHB in particular) and CNCs. A detailed discussion on PHB-CNC nanocomposites. with particular emphasis on the potential of such materials for food packaging applications, is provided next. We compare various existing techniques used for the fabrication of PHB-CNC films, and report a cost effective technique for dispersion of CNCs into PHB through solvent exchange-cum-casting method." @default.
- W2484062024 created "2016-08-23" @default.
- W2484062024 creator A5010389025 @default.
- W2484062024 creator A5034019611 @default.
- W2484062024 creator A5037478051 @default.
- W2484062024 creator A5068086262 @default.
- W2484062024 date "2014-01-01" @default.
- W2484062024 modified "2023-09-27" @default.
- W2484062024 title "Polyhydroxyalkanoates (PHA)-Cellulose Based Nanobiocomposites for Food Packaging Applications" @default.
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