Results 41 to 50 of about 31,941 (245)

Hierarchical and hybrid polymer nanocomposites based on carbon nanotubes and inorganic fullerene type nanoparticles [PDF]

, 2014
The influence of singlewalled carbon nanotubes (SWCNT) and inorganic fullerenelike tungsten disulfide nanoparticles (IFWS2) on the morphology and thermal, mechanical and electrical performance of multifunctional fibrereinforced polymer composites has ...
Ansón, Alejandro, Díez Pascual, Ana María, Ellis, Gary J., González-Domínguez, José M., Gómez Fatou, Marián A., Marco, Carlos, Martínez, María T., Naffakh Cherradi Hadi, Mohammed   +7 more
core   +1 more source

Aromatic polymers obtained by precipitation polycondensation: 4*. Synthesis of poly(ether ketone ketone)s [PDF]

, 1997
High molecular weight aromatic poly(ether ketone ketone)s were synthesized by the Friedel-Crafts polyacylation condensation of iso- and terephthaloyl chlorides with diphenyl ether, 1,4- and 1,3-bis(4- phenoxybenzoyl)benzenes.
Zolotukhin, M. G., Rueda, Daniel R., Baltá Calleja, Francisco José, Cagiao, M. E., Bruix, M., Sedova, E. A., Gileva, N. G.   +6 more
core   +1 more source

Enhancement of the Mechanical Properties of Hydroxyapatite/Sulphonated Poly Ether Ether Ketone Treated Layer for Orthopaedic and Dental Implant Application

International Journal of Biomaterials, 2018
The mechanical properties of coated layers are one of the important factors for the long-term success of orthopeadic and dental implants. In this study, the mechanical properties of the porous coated layer were examined via scratch and nanoindentation ...
Roohollah Sharifi, Davood Almasi, Izman Bin Sudin, Mohammed Rafiq Abdul Kadir, Ladan Jamshidy, Seyed Mojtaba Amiri, Hamid Reza Mozaffari, Maliheh Sadeghi, Fatemeh Roozbahani, Nida Iqbal   +9 more
doaj   +1 more source

Sulfonated poly(ether ether ketone)/hydroxyapatite membrane as biomaterials: process evaluation

Polímeros, 2019
Poly(ether ether ketone) (PEEK) has excellent properties, such as high biocompatibility and an elastic modulus similar to bone, which makes it a suitable biomaterial.
Cristiane Agra Pimentel, José William de Lima Souza, Flávia Suzany Ferreira dos Santos, Mayelli Dantas de Sá, Valéria Pereira Ferreira, Gislaine Bezerra de Carvalho Barreto, José Filipe Bacalhau Rodrigues, Wladymyr Jefferson Bacalhau de Sousa, Cláudio Orestes Britto Filho, Francisco Kegenaldo Alves de Sousa, Marcus Vinicius Lia Fook   +10 more
doaj   +1 more source

Biomechanical Effect of Various Tibial Bearing Materials in Uni-Compartmental Knee Arthroplasty Using Finite Element Analysis

Applied Sciences, 2020
This paper aimed to evaluate the biomechanical effects of tibial bearing materials, from ultra-high-molecular-weight polyethylene (UHMWPE) to poly-ether-ether-ketone (PEEK) and carbon-fiber-reinforced poly-ether-ether-ketone (CFR-PEEK).
Yoon Hae Kwak, Hyoung-Taek Hong, Yong-Gon Koh, Kyoung-Tak Kang   +3 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Molecular fractionation with poly(ether ether ketone) hollow fibers

Advanced Membranes
Sustainable and efficient separation technologies are essential for minimizing the environmental impact of the chemical and pharmaceutical industries. Membranes with stability in solvents and precise molecular separation are needed.
Banan Alhazmi, Lakshmeesha Upadhyaya, Shanshan Hong, Gergo Ignacz, Radosław Górecki, Maik Tepper, Hannah Roth, Matthias Wessling, Gyorgy Szekely, Suzana P. Nunes   +9 more
doaj   +1 more source

Low dielectric fluorinated poly(phenylene ether ketone) film and coating [PDF]

, 1990
The present invention relates to film and coating materials prepared from novel fluorinated poly(phenylene ether ketones). A fluorinated poly(phenylene ether ketone) is prepared by reacting a bisphenol with 1,1,1,3,3,3 hexafluoro-2,2-bis 4-(4-halobenzoyl)
Cassidy, Patrick E., St.clair, Anne K., Tullos, Gordon L.   +2 more
core   +1 more source

Sulphonated Poly Ether Ether Ketone/Aminodiphenylsilandiol Composite Electrolyte for PEM Fuel Cells [PDF]

, 2012
A composite polymeric membrane to be used as electrolyte in polymer electrolyte membrane fuel cells has been prepared and characterized. The membrane is composed of an acidic polymer, sulfonated polyetheretherketone, and of basic filler, amino ...
Adjemian, Aricò, Baranov, Botavy, D'Epifanio, Di Vona, Furniss, Hickner, Hickner, Hinokuma, Iwahara, Kerres, Kerres, Kobayashi, Li, Licoccia, Licoccia, Luo, Marani, Mark, Mauritz, Mecheri, Mikhailenko, Robertson, Rozière, Ruichun, Xing, Zaidi, Zawodzinski, Zhe   +29 more
core   +1 more source

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

Advanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai, Xiaoyu Huo, Xin Long, Enkang Fu, Xusong Gong, Lei Wei, Liang An   +6 more
wiley   +1 more source