Dergi makalesi Açık Erişim
Berkem, Ali Sabri; Capoglu, Ahmet; Nugay, Turgut; Sancaktar, Erol; Anac, Ilke
<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd"> <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/71263</identifier> <creators> <creator> <creatorName>Berkem, Ali Sabri</creatorName> <givenName>Ali Sabri</givenName> <familyName>Berkem</familyName> </creator> <creator> <creatorName>Capoglu, Ahmet</creatorName> <givenName>Ahmet</givenName> <familyName>Capoglu</familyName> <affiliation>Gebze Tech Unviers, Dept Mat Sci & Engn, TR-41400 Kocaeli, Turkey</affiliation> </creator> <creator> <creatorName>Nugay, Turgut</creatorName> <givenName>Turgut</givenName> <familyName>Nugay</familyName> <affiliation>Bogazici Univ, Dept Chem, TR-34342 Istanbul, Turkey</affiliation> </creator> <creator> <creatorName>Sancaktar, Erol</creatorName> <givenName>Erol</givenName> <familyName>Sancaktar</familyName> <affiliation>Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA</affiliation> </creator> <creator> <creatorName>Anac, Ilke</creatorName> <givenName>Ilke</givenName> <familyName>Anac</familyName> <affiliation>Gebze Tech Unviers, Dept Mat Sci & Engn, TR-41400 Kocaeli, Turkey</affiliation> </creator> </creators> <titles> <title>Self-Healable Supramolecular Vanadium Pentoxide Reinforced Polydimethylsiloxane-Graft-Polyurethane Composites</title> </titles> <publisher>Aperta</publisher> <publicationYear>2019</publicationYear> <dates> <date dateType="Issued">2019-01-01</date> </dates> <resourceType resourceTypeGeneral="Text">Journal article</resourceType> <alternateIdentifiers> <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/71263</alternateIdentifier> </alternateIdentifiers> <relatedIdentifiers> <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.3390/polym11010041</relatedIdentifier> </relatedIdentifiers> <rightsList> <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights> <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights> </rightsList> <descriptions> <description descriptionType="Abstract">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.</description> </descriptions> </resource>
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