1 Ocak 2019 Dergi makalesi Açık Erişim

Berkem, Ali Sabri; Capoglu, Ahmet; Nugay, Turgut; Sancaktar, Erol; Anac, Ilke

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{
  "@context": "https://schema.org/", 
  "@id": 71263, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Berkem, Ali Sabri"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Gebze Tech Unviers, Dept Mat Sci & Engn, TR-41400 Kocaeli, Turkey", 
      "name": "Capoglu, Ahmet"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Bogazici Univ, Dept Chem, TR-34342 Istanbul, Turkey", 
      "name": "Nugay, Turgut"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA", 
      "name": "Sancaktar, Erol"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Gebze Tech Unviers, Dept Mat Sci & Engn, TR-41400 Kocaeli, Turkey", 
      "name": "Anac, Ilke"
    }
  ], 
  "datePublished": "2019-01-01", 
  "description": "The self-healing ability can be imparted to the polymers by different mechanisms. In this study, self-healing polydimethylsiloxane-graft-polyurethane (PDMS-g-PUR)/Vanadium pentoxide (V2O5) nanofiber supramolecular polymer composites based on a reversible hydrogen bonding mechanism are prepared. V2O5 nanofibers are synthesized via colloidal route and characterized by XRD, SEM, EDX, and TEM techniques. In order to prepare PDMS-g-PUR, linear aliphatic PUR having one -COOH functional group (PUR-COOH) is synthesized and grafted onto aminopropyl functionalized PDMS by EDC/HCl coupling reaction. PUR-COOH and PDMS-g-PUR are characterized by H-1 NMR, FTIR. PDMS-g-PUR/V2O5 nanofiber composites are prepared and characterized by DSC/TGA, FTIR, and tensile tests. The self-healing ability of PDMS-graft-PUR and composites are determined by mechanical tests and optical microscope. Tensile strength data obtained from mechanical tests show that healing efficiencies of PDMS-g-PUR increase with healing time and reach 85.4 +/- 1.2 % after waiting 120 min at 50 degrees C. The addition of V2O5 nanofibers enhances the mechanical properties and healing efficiency of the PDMS-g-PUR. An increase of healing efficiency and max tensile strength from 85.4 +/- 1.2% to 95.3 +/- 0.4% and 113.08 +/- 5.24 kPa to 1443.40 +/- 8.96 kPa is observed after the addition of 10 wt % V2O5 nanofiber into the polymer.", 
  "headline": "Self-Healable Supramolecular Vanadium Pentoxide Reinforced Polydimethylsiloxane-Graft-Polyurethane Composites", 
  "identifier": 71263, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Self-Healable Supramolecular Vanadium Pentoxide Reinforced Polydimethylsiloxane-Graft-Polyurethane Composites", 
  "url": "https://aperta.ulakbim.gov.tr/record/71263"
}