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Browsing Chemical Engineering / Kimya Mühendisliği by Author "Ulutan, Sevgi"
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Characterization of hollow chemical garden fibers from metal salts and water glass
Balköse, Devrim; Özkan, Fehime; Köktürk, Uğur; Ulutan, Sevgi; Ülkü, Semra; Nişli, Gürel (Springer, 2002-03)Hollow fibers formed from water glass and metal salts of IIA(Ca), VIIB(Fe, Co, Ni) and IB(Cu) groups were characterised in this study. Fragile fibres obtained herein broke down into small pieces during isolation and drying. ... -
Characterization of poly(vinyl chloride) powder produced by emulsion polymerization
Atakul Savrık, Sevdiye; Balköse, Devrim; Ulutan, Sevgi; Ülkü, Semra (Springer, 2010-08)The effect of emulsion process formulation ingredients on the morphology, structure, and properties of polyvinyl chloride (PVC) powder has been considered in this study. PVC powder was extracted with ethanol and films were ... -
Dynamics of water vapor adsorption on humidity-indicating silica gel
Balköse, Devrim; Ulutan, Sevgi; Çakıcıoğlu Özkan, Seher Fehime; Çelebi, Sedat; Ülkü, Semra (Elsevier, 1998-09)Well-defined CoCl2-containing silica gels were prepared by impregnation of the aqueous solution of the salt to silica hydrogel, drying and aging methods. Silica gels having 392-437 m2 g-1 surface area and 0.21-0.37 cm3 g-1 ... -
Flexible poly(vinyl chloride)-zeolite composites for dye adsorption from aqueous solutions
Balköse, Devrim; Ulutan, Sevgi; Çakıcıoğlu Özkan, Seher Fehime; Ülkü, Semra; Köktürk, Uğur (Taylor & Francis, 1996)Flexible poly(vinyl chloride) (PVC) composites having natural zeolite clinoptillolite were prepared by plastisol-plastigel technology. Adsoption of methylene blue on each raw material and on composites was studied both ... -
Flexible PVC-Silica composites as an adsorptive material for water soluble dyes
Ulutan, Sevgi; Yetgin, Senem; Balköse, Devrim (Smithers Rapra Technology, 2013)Methylene Blue (MB) adsorption studies were performed on flexible Polyvinyl Chloride/Silica composites which were obtained by using plastisol-plastigel technology. Change of MB concentration in aqueous phase as the adsorption ... -
Methylene blue adsorption from aqueous solutions to flexible poly(vinyl chloride) silica composites
Yetgin, Senem; Ulutan, Sevgi; Balköse, Devrim (Wiley, 2015-03)Methylene blue (MB) adsorption studies were performed with poly(vinyl chloride)-(dioctyl phthalate)-silica composites, which were obtained by using plastisol-plastigel technology. The films were flexible, having elastic ... -
A study of adsorption of water vapour on wool under static and dynamic conditions
Ülkü, Semra; Balköse, Devrim; Çağa, Tayfun; Özkan, Fehime; Ulutan, Sevgi (Kluwer Academic Publishers, 1998-01)Adsorption of water vapour on wool provides not only textile comfort, but also convenience in transportation due to increase in its bulk density. The adsorption and desorption isotherms of water vapour for wool were ... -
Water vapour adsorption on organic and inorganic polymers
Balköse, Devrim; Özkan, Fehime; Ulutan, Sevgi; Ülkü, Semra (Kluwer Academic Publishers, 2003)Water vapour adsorption on polymers affects their processing behaviour and useful properties. Water vapour adsorption on organic polymers, silk, Nylon 6 fibres in undrawn and permanent set forms, polyester micro fibres, ...
