Biodegradable polymernanocomposites for packaging applications
| Autor: | Arsénio Vasconcelos Sá, Ana S. Abreu, I. Moura, Ana Vera Machado |
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| Rok vydání: | 2017 |
| Předmět: |
Nanocomposite
Materials science New materials Nanotechnology 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biodegradable polymer Polyhydroxyalkanoates 12. Responsible consumption 0104 chemical sciences chemistry.chemical_compound chemistry Chitin engineering Biopolymer Cellulose Composite material 0210 nano-technology Renewable resource |
| DOI: | 10.1016/b978-0-12-804302-8.00010-8 |
| Popis: | Biodegradable polymers have attracted a high interest in a wide range of applications, including packaging, due to the increasing social concerns. To meet the growing demand for sustainability and environmental safety, a number of studies using biodegradable polymers focused on the development of packaging products, is increasing in order to produce materials that could rapidly degrade and completely mineralize. Biodegradable polymers can be obtained from renewable resources (starch, chitin, cellulose, casein, zein, and soy protein), synthesized using fossil derivatives [poly(lactic acid) and poly(ɛ-caprolactone)] or produced by bacteria (polyhydroxyalkanoates). Unfortunately, the use of biopolymers as packaging materials has drawbacks, such as, poor mechanical, thermal, and barrier properties when compared to conventional nonbiodegradable materials. Due to this, many research efforts were made to improve properties of biopolymers, including the preparation of nanocomposite materials. This chapter presents examples of biodegradable polymers from different sources and the development of new materials, nanocomposites, for food-packaging applications. |
| Databáze: | OpenAIRE |
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