| Résumé : |
Vegetable oils, solvents, natural polymers are the crucial ingredient of many research and industrial chemical processes and consumer product formulations. Out of which vegetable oil constitute the single, largest, easily available, low cost, non-toxic, non-depletable, biodegradable family yielding materials that are capable of competing with fossil fuel derived petro-based products. It helps reduce the carbon footprint and environmental impact of chemicals on it, in addition to societal and legislative push that more products be produced from carbon-neutral resources. Biomass is a promising renewable alternative resource for producing bio-solvents, and this review focuses on their extraction and synthesis on a laboratory and large scale. Starch, lignocellulose, plant oils, animal fats and proteins have been fused together with synthetic pathways, green technologies and processes to form known or new bio-derived solvents including Alcohols, esters, terpenes, benzenes, toluene and xylene (BTX),ethers alkanes, aromatics, ionic liquids (ILs), furans, liquid polymers and deep eutectic solvents (DESs)—all with unique physiochemical properties that warrant their use as solvation agents in manufacturing of coating, pharmaceutical, cosmetics, chemicals, energy, food and beverage industries, etc.
The most important feature of vegetable oil is their unique chemical structure with unsaturation sites, epoxies, hydroxyls, esters and other functional groups along with inherent fluidity characteristics. These enable them to undergo various chemical transformations producing low molecular weight polymeric materials with versatile applications, particularly as heart or centric ingredients in paints and coatings. |
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Introduction of green chemistry in coating technology in PAINTINDIA, Vol. LXXIII, N° 3 (03/2023)
