Polistiren Bazlı Çok Katmanlı Kompozitlerin Hazırlanması ve Özelliklerinin Geliştirilmesi

Erkmen, Berrak
Bayram, Göknur


Synthesis and characterization of polystyrene clay nanocomposites
Özden, Gülsüm; Yılmazer, Ülkü; Department of Chemical Engineering (2004)
This study was undertaken to prepare polystyrene (PS)/montmorillonite (MMT) nanocomposites by different methods, including melt intercalation, in-situ polymerization and masterbatch methods. The in-situ polymerization method consisted of dispersing the styrene monomer into the galleries of MMT followed by subsequent polymerization. The PS/MMT nanocomposites formed by melt intercalation method were prepared on a twin-screw extruder. The masterbatch method was in fact a two-step process. As the first step, a ...
Polystyrene-based and carbon fabrİc-reİnforced polymer composİtes containing carbon nanotubes: preparation,modification and characterization
Erkmen, Berrak; Bayram, Göknur; Department of Chemical Engineering (2020-11-23)
Carbon Fabric-Reinforced Polymers (CFRPs) attract attention due to their high mechanical properties, electrical conductivity, and providing weight reduction solutions in aerospace, automotive, marine, and energy industries. Since recycling, long processing times, non-visible damages, and complex repair procedures of thermoset-based CFRPs cause problems, studies are performed on the application of thermoplastic-based CFRPs. This study aims to produce polystyrene (PS)-based and carbon nanotubes (CNTs) and car...
Sulfonation degree determination by adiabatic bomb calorimetry of polystyrene ionomers
Dumanlı, Ahu Gümrah; Aras, Leyla; Kısakürek, Duygu; Department of Polymer Science and Technology (2003)
In this study, the sulfonation degree of sulfonated polystyrene is determined by adiabatic bomb calorimeter, which is a novel analysis method for this determination. The theoretical combustion enthalpy calculations are compared with the experimental results and a correlation factor is found between these values. The effect of neutralization on the calorific values is also examined. The sulfonation reaction and the degree of sulfonation are determined by analytical titration method and elemental sulfur analy...
Polystyrene / boron nitride nanotube composites: synthesis, processing and characterization
Balık, Erdem; Bayram, Göknur; Sezgi, Naime Aslı; Department of Chemical Engineering (2015)
In recent years, boron nitride nanotubes (BNNTs) have been added to polystyrene (PS) which is a widely used thermoplastic polymer in order to improve its thermal and mechanical properties. Solution mixing and melt blending techniques are commonly used methods to prepare polymer-boron nitride nanotube (BNNT) composites. However, these two composite preparation methods have a common problem about the dispersion of fillers in the polymer matrix. In this study, PS-BNNT composites were prepared using masterbatch...
Nanocomposites based on blends of polystyrene
Dike, Ali Sinan; Yılmazer, Ülkü; Department of Polymer Science and Technology (2011)
Due to brittleness of polystyrene, PS, its usage area is restricted. To solve this problem and expand the usage area of PS, it can be blended and impact modified with an elastomeric material. In this study, the decrease in the modulus and tensile strength imparted by impact modification was overcome by reinforcing this mixture by incorporating organoclays and producing nanocomposites. This study consists of two parts. In the first part of this study three different types of aliphatic elastomeric materials a...
Citation Formats
B. Erkmen and G. Bayram, “Polistiren Bazlı Çok Katmanlı Kompozitlerin Hazırlanması ve Özelliklerinin Geliştirilmesi,” 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/77493.