Environmental Engineering

Green polymer composites technology: properties and by Inamuddin

By Inamuddin

This e-book is a entire advent to "green" or environmentally pleasant polymer composites constructed utilizing renewable polymers of normal foundation comparable to starch, lignin, cellulose acetate, poly-lactic acid (PLA), polyhydroxylalkanoates (PHA), polyhydroxylbutyrate (PHB), etc., and the improvement of recent applied sciences for getting ready eco-friendly composites with quite a few purposes. The publication additionally discusses significant functions of eco-friendly polymer composites in industries resembling medication, biotechnology, positive chemical substances and engineering.

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Green polymer composites technology: properties and applications

This ebook is a finished advent to "green" or environmentally pleasant polymer composites constructed utilizing renewable polymers of usual starting place resembling starch, lignin, cellulose acetate, poly-lactic acid (PLA), polyhydroxylalkanoates (PHA), polyhydroxylbutyrate (PHB), and so on. , and the advance of contemporary applied sciences for getting ready eco-friendly composites with quite a few functions.

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6 Chitin and Chitosan Chitin is the most widespread natural polysaccharide obtained from oceanic biomass. It is the principal source of chitosan. It is commonly found in the crustacean shells, insect cuticles and in the cell walls of fungi, yeast and green algae (Rinaudo 2006; Roberts 1992). Like cellulose, chitin performs s­tructure-forming functions in living organisms, but differs from cellulose in its properties. Chitin is highly hydrophobic, insoluble and has nitrogen in its backbone (Rinaudo 2006; Roberts 1992).

Carbohydr. Polym. 86(2):852–859. C. 2013. Long-Chain Anhydride Modification: A New Strategy for Preparing Xylan Films. J. Agri. Food Chem. 61:655–661. 1 Introduction and Background............................................................................................................................................. 2 Phenolic Compounds-Based Foam..................................................................................................................................... 1 Lignins....................................................................................................................................................................

In this sense, special efforts to reduce the hygroscopic nature of hemicelluloses with the aim to substitute its hydroxyl groups by chemical or enzymatic treatments have been made by several authors (Ayoub et al. 2013; Belmokaddem et al. 2011; Sun et al. 2004). Other properties such as crystallinity, solubility and mechanical properties can be modified through these functional groups, providing novel properties, which can be exploited for packaging applications. In this sense, many works have been developed with the aim to improve hemicellulose properties for packaging applications.

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