NDLI: Linseed oil polyol/ZnO bionanocomposite towards mechanically robust, thermally stable, hydrophobic coatings: a novel synergistic approach utilising a sustainable resource

Content Provider	Royal Society of Chemistry (RSC)
Author	Alam, Manawwer Ahmad, Sharif Rahman, Obaid ur Zafar, Fahmina Sharmin, Eram Akram, Deewan
Copyright Year	2015
Abstract	Linseed oil polyol/ZnO bionanocomposite was prepared to obtain mechanically robust, thermally stable, hydrophobic coatings via a novel synergistic approach utilising a vegetable oil polyol for the first time. The synthesis process obviates the use of reducing agents, surfactants, reaction media, stabilizing agents, solvents, and other chemicals. Linseed polyol serves the purpose of obtaining ZnO nanoparticles. The linseed polyol backbone hosts hydroxyl and carboxylic groups that participate in the generation of ZnO nanoparticles in the polyol matrix (ester elimination, addition–elimination reaction). The progress of the reaction was monitored by recording FTIR spectra at regular intervals of time. The coatings obtained were scratch-resistant, impact-resistant, well-adherent, flexibility-retentive and hydrophobic, showing good chemical resistance under acidic, alkaline, and salt environments. Thermogravimetric analysis revealed that these coatings could be safely used up to 250 °C. The work described is consistent with the principles of “Green Chemistry” (Principles 1, 2, 3, 4, 5, 6, 7, 8, and 12), such as utilising a renewable feedstock, resorting to a solventless approach, and employing safer chemistry. The results showed that these coatings may be well employed as promising candidates towards environmentally friendly corrosion protective coatings.
Starting Page	47928
Ending Page	47944
Page Count	17
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	5
Issue Number	59
Journal	RSC Advances
DOI	10.1039/c5ra03262h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Thermogravimetric analysis Linseed oil Vegetable oil Hydrophobe Renewable resource Composite material Ester Organic chemistry Hydroxy group Corrosion Green chemistry Polyol 5,6,7,8
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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