Contact
    Start Publications Hydrophilic Hybrid SiO2: polyethylene ...
    ←  Publication Finder
    Attension

    Hydrophilic Hybrid SiO2: polyethylene glycol-3-Isocyanato-propyltrietoxysilane Nanocomposite Films

    Year: 2012

    Journal: Thin solid films, 2012, 522, pp 238-246, 20130115

    Authors: Esin Burunkaya, Ömer Kesmez, Nadir Kiraz, H. Erdem Çamurlu, Meltem Asiltürke, Ertuğrul Arpaç

    Organizations: Department of Chemistry, Akdeniz University, 07058, Antalya, Turkey, NANOen R&D Ltd., Antalya Technopolis, Akdeniz University Campus, Antalya, Turkey, Department of Mechanical Engineering, Akdeniz University, 07058, Antalya, Turkey, Mattek Advanced Materials Ltd., Antalya Technopolis, Akdeniz University Campus, 07058 Antalya, Turkey, İnönü University, Prof. Dr. Hikmet Sayılkan Research and Development Laboratory for Advanced Materials, 44280, Malatya, Turkey

    SiO2:polyethylene glycol (PEG)–3-isocyanato-propyltrietoxysilane (IPTES) hydrophilic films were prepared from PEG having various average molecular weights, namely 200, 400 and 600; SiO2 nanoparticles, and tetraethyl orthosilicate (TEOS) through sol–gel method. SiO2 nanoparticles were utilized in various amounts to enhance the mechanical properties and hydrophilic character of the films. Films were characterized by Fourier transformed infrared spectroscopy, field emission scanning electron microscopy, atomic force microscopy, adhesion test, humidity test and water contact angle (WCA) measurements. Thicknesses of the obtained films were about 800 nm. Incorporation of TEOS enhanced adhesion of film to substrate as well as improving stability of the film against water. WCA was seen to decrease, and porosity and surface roughness was seen to increase with increase in SiO2 nanoparticle content of the films. Increase in PEG molecular weight also resulted in a decrease in the WCA, thus WCA as low as 15° was obtained.