Abstract
Solvents are an inevitable part of industries. They are widely used in manufacturing and processing industries. Despite the numerous controlling measures taken, solvents contaminate our environment to a vast extent. Green and sustainable solvents have been a matter of growing interest within the research community over the past few years due to the increasing environmental concerns. Solvents are categorized as “green” based on their nonvolatility, nonflammability, availability, biodegradability and so on. The use of ionic liquids, super critical carbon dioxide and aqueous solvents for the fabrication of polymer composites is discussed in this review. The progress of utilizing solvent-free approaches for polymer composite preparation and efforts to produce new biobased solvents are also summarized.
Highlights
Management of solvent wastes is a major problem within most industries
To and other conductive polymer composites, Kuang et al reported the synthesis of polymerovercome these limitations, the integrated combination of pressure induced flow (PIF) and SCC foaming assists based nanocomposite foams made of scaffold poly (L-lactic acid)ofmultiwalled carbon nanotubesPLLA
Mechanical resistance was increased upon overcome these limitations, the integrated combination of PIF and SCC foaming assists the addition of levan, and cell adhesion was increased from 8% to 30%
Summary
Management of solvent wastes is a major problem within most industries. Almost all industries like textile, electronics, food, etc. are associated with large amounts of solvents, and their effective disposal is a matter of extensive research. Removal of solvents is usually associated with large costs and energy consumption This can have serious implications when it comes to their end applications, especially when the biomedical field is concerned. The commonly used green solvents in polymer chemistry include water, super critical carbon dioxide and ionic liquids [5]. Water-based techniques are highly 255 desirable ever, it is very difficult to dissolve most of the polymers in water. Supercritical flui ing both gas- and liquid-like properties are explored.
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