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The main component of seashells is calcium carbonate (CaCO3). When are calcined at high temperatures, CaCO3 becomes oxide (CaO), and this CaO exhibits antimicrobial activity. In study, we attempted to develop a transparent coating that retains activity for long time by mixing polyvinyl butyral (PVB), which has excellent adhesive binding properties, with heated shell powder (HSP). scallop HSPs u...

Abstract Polyvinyl butyral is used in safety glass interlayers, mainly car windshields. Legislative regulations require a recycling of cars after their lifetime and therefore also glass. This causes the availability recycled polyvinyl butyrate (r-PVB) originated from interlayers. Due to deteriorated optical properties, such as transparency, unknown amounts plasticizers, it challenging reuse mat...

Ionic liquids (ILs) are salts with low melting point close to room temperature. They have interesting solvent properties and are able to dissolve some polar molecules. Polyvinyl formal-IL (1-Ethyl-3methylimidazoliumtosylate) nanocomposite electrolyte with layered filler was synthesized by solution cast technique. Changes in surface morphology have been observed using optical microscopy and scan...

background and objectives: preparation and evaluation of nanocomposite films have become prevalent in recent years. one of the most important methods for dispersing nanoparticles in polymers is the use of ultrasound radiation. polyvinyl alcohol-montmorillonite (pva-mmt) nanocomposite films were prepared via solvent casting method. materials and methods: the effects of different ultrasound times...

Polymer gels as soft biomaterials have found diverse applications in biomedical field, e.g. in management and care of wound as wound dressing. The recent researches on nanocomposite materials have shown that some properties of polymers and gels significantly improve by adding organoclay into polymeric matrix. In this work, in order to obtain wound dressing with better properties, nanocomposite ...

A novel nanocomposite polyvinyl alcohol precursor-based material dispersed with the web of carbon microfibers and carbon nanofibers is developed as lithium (Li)-ion electrolyte battery separator. The primary synthesis steps of the separator material consist of esterification of polyvinyl acetate to produce polyvinyl alcohol gel, ball-milling of the surfactant dispersed carbon micro-nanofibers, ...