Results 11 to 20 of about 1,024 (182)

Morphological, Thermal, and Mechanical Analysis of 3D Printed Polyetherketoneketone (PEKK) and PEKK‐Hydroxyapatite Composites: Establishing the Reference Enthalpy of Fusion for Crystalline PEKK 7003

Macromolecular Materials and Engineering
The enthalpy of fusion (ΔHf) is a critical parameter for determining the degree of crystallinity in semi‐crystalline polymers such as polyetherketoneketone (PEKK).
Frances Hasson, Krzysztof Rodzeń, Joanna Ward, Alistair McIlhagger, Eiméar O'Donnell, Adrian Boyd   +5 more
doaj   +2 more sources

Marginal gap of printed, milled, and heat-pressed two-piece polyetheretherketone abutments before and after thermal cycling, and their pull-off bond strength after thermal cycling [PDF]

Journal of Prosthodontics, EarlyView.
Purpose: To evaluate the marginal gap of two-piece polyetheretherketone (PEEK) abutments fabricated with different methods, before and after thermal cycling, while also focusing on their pull-off bond strength.
Bulucu, Naime Bilinc, Demirel, Muenir, Donmez, Mustafa Borga, Kanpalta, Burcu, Schulnig, Sandra, Spintzyk, Sebastian, Tuerksayar, Almira Ada Diken   +6 more
core   +2 more sources

Thermal conductivity and diffusivity of carbon‐reinforced polyetherketoneketone composites [PDF]

Journal of Applied Polymer Science, 2019
Heat transfer properties play an important role in processing of polyetherketoneketone (PEKK)/carbon fiber (CF) composites. Accordingly, thermal conductivity and diffusivity of PEKK, PEKK/glassy carbon (GC), and PEKK/CF composites have been studied ...
Coulson, Mike, Dantras, Eric, Gleizes, Nathalie, Lacabanne, Colette, Olivier, Philippe   +4 more
core   +7 more sources

Advanced 3D Printing of Polyetherketoneketone Hydroxyapatite Composites via Fused Filament Fabrication with Increased Interlayer Connection [PDF]

Materials (Basel)
Additively manufactured implants, surgical guides, and medical devices that would have direct contact with the human body require predictable behaviour when stress is applied during their standard operation. Products built with Fused Filament Fabrication
Rodzeń K, O’Donnell E, Hasson F, McIlhagger A, Meenan B, Ullah J, Strachota B, Strachota A, Duffy S, Boyd A.   +9 more
europepmc   +3 more sources

Sulfonated polyether ketone ketone (SPEKK) implant as an alternative to titanium implant-in vivo study on Wistar Albino rat mandible [PDF]

BMC Oral Health
Background Titanium is commonly used for dental implants due to its high biocompatibility and durability. However, concerns about metal ion release and aesthetic limitations in certain tissue biotypes have driven the search for alternative materials ...
Bhavini Nahata, Subhabrata Maiti, Mohanraj Karthik Ganesh, Artak Heboyan, Lokesh Sai, Jessy Paulraj   +5 more
doaj   +2 more sources

Sternal Reconstruction Utilizing a Custom 3D-Printed Polyetherketoneketone Implant

Annals of Thoracic Surgery Short Reports
Anterior chest wall reconstruction after sternal resection remains challenging. Implants and prosthetic reconstructive materials should offer ample tissue ingrowth, maintain structural integrity and physiology, minimize infection risk, and maximize ...
Eric Lisznyai, MD, Haroutioun Boyajian, MD, Ikenna Okereke, MD, Deangelo Ferguson, MD, Aamir Siddiqui, MD, Andrew M. Popoff, MD   +5 more
doaj   +2 more sources

Manganese-Catalyzed Synthesis of Polyketones Using Hydrogen-Borrowing Approach. [PDF]

ACS Catal
Funding: Engineering and Physical Sciences Research Council - EP/R023751/1, EP/T019298/1, EP/L017008/1; UK Research and Innovation - MR/W007460/1.We report here a method of making polyketones from the coupling of diketones and diols using a manganese ...
Kulyabin PS, Magdysyuk OV, Naden AB, Dawson DM, Pancholi K, Walker M, Vassalli M, Kumar A.   +7 more
europepmc   +6 more sources

The Tensile, Thermal and Flame-Retardant Properties of Polyetherimide and Polyetherketoneketone Processed via Fused Filament Fabrication. [PDF]

Polymers (Basel)
Publisher Copyright: © 2024 by the authors.Polymer materials are increasingly widely used in high-fire-risk applications, such as aviation interior components.
Glaskova-Kuzmina T, Dejus D, Jātnieks J, Vīndedze E, Bute I, Sevcenko J, Aniskevich A, Stankevich S, Boobani B.   +8 more
europepmc   +3 more sources

Biomechanical effects of digitally constructed titanium, modified polyetheretherketone, and polyetherketoneketone subperiosteal implants on atrophied maxilla: a finite element analysis [PDF]

BMC Oral Health
Aim This study aimed to evaluate how different combinations of subperiosteal and superstructure framework materials—titanium, modified PEEK, and PEKK—affect stress distribution on bone in atrophic maxillae, using finite element analysis (FEA).
Mohammed A. El-Sawy, Basin El-Khatib, Hesham S. Borg, Mohamed T. Khater   +3 more
doaj   +2 more sources

A Telescope Prosthesis With A CAD/CAM Polyetherketoneketone (PEKK) Framework

International Dental Journal
Introduction: Both in vitro studies and clinical trials have been conducted to assess the retentive force of PEEK and PEKK as materials for secondary crowns in telescopic prostheses.
Fangfang Sun, Ling Ding, Huo Qianyu
doaj   +2 more sources