Search results for: polyetherimide

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polyetherimide</title> <meta name="description" content="Search results for: polyetherimide"> <meta name="keywords" content="polyetherimide"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="polyetherimide"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 4</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: polyetherimide</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Basic Evaluation for Polyetherimide Membrane Using Spectroscopy Techniques </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hanan%20Alenezi">Hanan Alenezi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Membrane performance depends on the kind of solvent used in preparation. A membrane made by Polyetherimide (PEI) was evaluated for gas separation using X-Ray Diffraction (XRD), Scanning electron microscope (SEM), and Energy Dispersive X-Ray Spectroscopy (EDS). The purity and the thickness are detected to evaluate the membrane in order to optimize PEI membrane preparation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Energy%20Dispersive%20X-Ray%20Spectroscopy%20%28EDS%29" title="Energy Dispersive X-Ray Spectroscopy (EDS)">Energy Dispersive X-Ray Spectroscopy (EDS)</a>, <a href="https://publications.waset.org/abstracts/search?q=Membrane" title=" Membrane"> Membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=Polyetherimide%20PEI" title=" Polyetherimide PEI"> Polyetherimide PEI</a>, <a href="https://publications.waset.org/abstracts/search?q=Scanning%20electron%20microscope%20%28SEM%29" title=" Scanning electron microscope (SEM)"> Scanning electron microscope (SEM)</a>, <a href="https://publications.waset.org/abstracts/search?q=Solvent" title=" Solvent"> Solvent</a>, <a href="https://publications.waset.org/abstracts/search?q=X-Ray%20Diffraction%20%28XRD%29" title=" X-Ray Diffraction (XRD)"> X-Ray Diffraction (XRD)</a> </p> <a href="https://publications.waset.org/abstracts/120499/basic-evaluation-for-polyetherimide-membrane-using-spectroscopy-techniques" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120499.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">183</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Fabrication of a High-Performance Polyetherimide Membrane for Helium Separation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20Alqaheem">Y. Alqaheem</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Alomair"> A. Alomair</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Altarkait"> F. Altarkait</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Alswaileh"> F. Alswaileh</a>, <a href="https://publications.waset.org/abstracts/search?q=Nusrat%20Tanoli"> Nusrat Tanoli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Helium market is continuously growing due to its essential uses in the electronic and healthcare sectors. Currently, helium is produced by cryogenic distillation but the process is uneconomical especially for low production volumes. On the other hand, polymeric membranes can provide a cost-effective solution for helium purification due to their low operating energy. However, the preparation of membranes involves the use of very toxic solvents such as chloroform. In this work, polyetherimide membranes were prepared using a less toxic solvent, n-methylpyrrolidone with a polymer-to-solvent ratio of 27 wt%. The developed membrane showed a superior helium permeability of 15.9 Barrer that surpassed the permeability of membranes made by chloroform. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=helium%20separation" title="helium separation">helium separation</a>, <a href="https://publications.waset.org/abstracts/search?q=polyetherimide" title=" polyetherimide"> polyetherimide</a>, <a href="https://publications.waset.org/abstracts/search?q=dense%20membrane" title=" dense membrane"> dense membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20permeability" title=" gas permeability"> gas permeability</a> </p> <a href="https://publications.waset.org/abstracts/105153/fabrication-of-a-high-performance-polyetherimide-membrane-for-helium-separation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105153.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">168</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Structure and Properties of Meltblown Polyetherimide as High Temperature Filter Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gajanan%20Bhat">Gajanan Bhat</a>, <a href="https://publications.waset.org/abstracts/search?q=Vincent%20Kandagor"> Vincent Kandagor</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Prather"> Daniel Prather</a>, <a href="https://publications.waset.org/abstracts/search?q=Ramesh%20Bhave"> Ramesh Bhave</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polyetherimide (PEI), an engineering plastic with very high glass transition temperature and excellent chemical and thermal stability, has been processed into a controlled porosity filter media of varying pore size, performance, and surface characteristics. A special grade of the PEI was processed by melt blowing to produce microfiber nonwovens suitable as filter media. The resulting microfiber webs were characterized to evaluate their structure and properties. The fiber webs were further modified by hot pressing, a post processing technique, which reduces the pore size in order to improve the barrier properties of the resulting membranes. This ongoing research has shown that PEI can be a good candidate for filter media requiring high temperature and chemical resistance with good mechanical properties. Also, by selecting the appropriate processing conditions, it is possible to achieve desired filtration performance from this engineering plastic. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nonwovens" title="nonwovens">nonwovens</a>, <a href="https://publications.waset.org/abstracts/search?q=melt%20blowing" title=" melt blowing"> melt blowing</a>, <a href="https://publications.waset.org/abstracts/search?q=polyehterimide" title=" polyehterimide"> polyehterimide</a>, <a href="https://publications.waset.org/abstracts/search?q=filter%20media" title=" filter media"> filter media</a>, <a href="https://publications.waset.org/abstracts/search?q=microfibers" title=" microfibers"> microfibers</a> </p> <a href="https://publications.waset.org/abstracts/72623/structure-and-properties-of-meltblown-polyetherimide-as-high-temperature-filter-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72623.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">315</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Enhancement of Interface Properties of Thermoplastic Composite Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reyhan%20Ozbask">Reyhan Ozbask</a>, <a href="https://publications.waset.org/abstracts/search?q=Emek%20Moroydor%20Derin"> Emek Moroydor Derin</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Dogu"> Mustafa Dogu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are a limited number of global companies in the world that manufacture and commercially offer thermoplastic composite prepregs in accordance with aerospace requirements. High-performance thermoplastic materials supplied for aerospace structural applications are PEEK (polyetheretherketone), PPS (polyphenylsulfite), PEI (polyetherimide), and PEKK (polyetherketoneketone). Among these, PEEK is the raw material used in the first applications and has started to become widespread. However, the use of these thermoplastic raw materials in composite production is very difficult due to their high processing temperatures and impregnation difficulties. This study, it is aimed to develop carbon fiber-reinforced thermoplastic PEEK composites that comply with the requirements of the aviation industry that are superior mechanical properties as well as being lightweight. Therefore, it is aimed to obtain high-performance thermoplastic composite materials with improved interface properties by using the sizing method (suspension development through chemical synthesis and functionalization), to optimize the production process. The use of boron nitride nanotube as a bonding agent by modifying its surface constitutes the original aspect of the study as it has not been used in composite production with high-performance thermoplastic materials yet. For this purpose, laboratory-scale studies on the application of thermoplastic compatible sizing will be carried out in order to increase the fiber-matrix interfacial adhesion. The method respectively consists of the selection of appropriate sizing type, laboratory-scale carbon fiber (CF) / poly ether ether ketone (PEEK) polymer interface enhancement studies, manufacturing of laboratory-scale BNNT coated CF/PEEK woven prepreg composites and their tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20fiber%20reinforced%20composite" title="carbon fiber reinforced composite">carbon fiber reinforced composite</a>, <a href="https://publications.waset.org/abstracts/search?q=interface%20enhancement" title=" interface enhancement"> interface enhancement</a>, <a href="https://publications.waset.org/abstracts/search?q=boron%20nitride%20nanotube" title=" boron nitride nanotube"> boron nitride nanotube</a>, <a href="https://publications.waset.org/abstracts/search?q=thermoplastic%20composite" title=" thermoplastic composite"> thermoplastic composite</a> </p> <a href="https://publications.waset.org/abstracts/141518/enhancement-of-interface-properties-of-thermoplastic-composite-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141518.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">225</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div 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Search results for: polyetherimide