Transition to renewable and sustainable energy from fossil fuels (natural gas, coal, and oil) has dominated the research cycle. The shift is as a result of increasing population growth, industrialisation, decreasing oil reserves and hazardous environmental impact of energy generation from fossil fuels. The new methods of energy generation demand functional materials that are smart and strong for generation and storage of energy. Polymeric composite materials have been widely used. With the recent material performance demand, there is a need to improve the properties of the composite. The improvement can be achieved by reinforcing with fibres and/or nanoparticles as the matrix alone does not possess the required properties. The influence of incorporating fibres and/or fillers into the polymeric matrix has been largely reported in many studies. Recent advancement in the development and use of polymeric composites and nanocomposites is discussed for energy applications. The discussion includes material property improvements, processing methods and improving interface adhesion that may arise when compounding the materials. Various areas, in the energy sector where these materials, can be used are equally highlighted.

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Packaging materials are a significant part of our lives due to their daily usage at grocery stores, supermarkets, restaurants, pharmaceuticals, etc. Packaging plays an important role in ensuring that the products are preserved during handling, transporting, and storage. Similarly, it helps to maintain and prolong the shelf life of products. These materials are used for packaging meats, poultry and seafood products, food and beverages, cosmetics, and pharmaceutical products. Several applications of packaging materials have been discussed extensively, with little discussion on their end of life and continuous availability without impacting the environment. This study presents the need for sustainable packaging as a result of growing demands and the environmental impact of packaging materials after use. This study also presents the importance, types, and applications of packaging materials. Based on the findings of this study, sustainable packaging is made possible by using bio-based and recyclable materials. These materials contribute a great deal to protecting and ensuring a sustainable environment.

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