Results 51 to 60 of about 814 (162)

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, Volume 36, Issue 58, 20 July 2026.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source

Unravel melt pool and bubble dynamics during laser powder bed fusion of polyamides using synchrotron X-ray imaging and process simulation

Virtual and Physical Prototyping
Laser powder bed fusion (LPBF) of Polyamide 12 (PA12) using a near-infra-red (NIR) beam is largely unexplored; therefore, the beam-matter interaction, evolution mechanisms of the melt pool and defects remain unclear. Here, we employed a combination of in
Chu Lun Alex Leung, Jabbar Gardy, Mark Isaacs, Shashidhara Marathe, Michał M. Kłosowski, Junji Shinjo, Chinnapat Panwisawas, Peter D. Lee   +7 more
doaj   +1 more source

Material Selection and Geometric Design for Few‐filament Shape Memory Polymer Yarns for Force Generation

Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
A custom shape memory polymer material selection process relates quantitative application criteria (e.g., compression garment yarns) to material characterization information. The selected materials are manufactured into yarn geometries, which expand the design space by creating structural stress‐strain profiles beyond the nominal material stress‐strain
Michaela Andrews, Susan Mantell, Julianna Abel   +2 more
wiley   +1 more source

Assessment of Melt Rheological Behavior of PTT/PE and PTT/PA 12 Blends by Emulsion and Micromechanical Models [PDF]

علوم و تکنولوژی پلیمر, 2009
To describe the rheological behavior of polymer blends using emulsionbased (Palierne theory) as well as micromechanical models (Coranapproach), two immiscible polymeric blend systems of poly(trimethylene terephthalate) (PTT)/polyamide-12 (PA12) and PTT ...
S.H. Jafari, H.A. Khonakdar, M. Ehsani, A. Asadinezhad   +3 more
doaj   +1 more source

A Fully 3D‐Printed Packed Absorption Column: Design, Hydrodynamic Performance, and CO2 Benchmarking

Chemical Engineering &Technology, Volume 49, Issue 7, July 2026.
ABSTRACT Additive manufacturing enables tailored column internals and structured packings that are difficult to fabricate by conventional methods. While significant progress has been made in the development of additively manufactured packings, no study to date presents a fully 3D‐printed absorption column in which both the shell and internals are ...
Simon Brinkmann, Dennis Stucke, Mohamed Adel Ashour, Matthias Körner, Thomas Grützner, Bernhard C. Seyfang   +5 more
wiley   +1 more source

Effects of Polyamide‐6 Bulk Plasma Treatment on Morphology, Crystallinity and Mechanical Properties of Microfibrillar Composites

Polymer Composites, Volume 47, Issue S2, Page S261-S274, 20 June 2026.
Microfibrillar composite containing highly oriented, plasma‐treated PA6 microfibrils embedded within the polymer matrix. ABSTRACT Plasma treatment is often used to alter chemical surface characteristics of fibers or polymers, improving dispersion of components and interfacial adhesion between incompatible constituents in composites.
Nam Kyeun Kim, Maximillian Pitto, Romain Agier, Jens Schuster, Casparus Johannes Reinhard Verbeek, Simon Bickerton   +5 more
wiley   +1 more source

Tailoring the Multifunctional Properties of PA6/PA12 75/25 Conductive Polymer Composites With Carbon Nanotubes

Macromolecular Materials and Engineering
Conductive polymer composites (CPCs) offer a unique combination of the lightweight and processable nature of polymers with the electrical conductivity of metals, making them suitable for a range of applications, including electromagnetic interference ...
T. Arnal, P. Eisenberg, A. Ares‐Pernas, C. Bernal, M. J. Abad   +4 more
doaj   +1 more source

A Comprehensive Optimization Course of Antimony Tin Oxide Nanofiller Loading in Polyamide 12: Printability, Quality Assessment, and Engineering Response in Additive Manufacturing

Nanomaterials
This study aimed to investigate the potential of antimony-doped tin oxide (ATO) as a reinforcing agent for polyamide 12 (PA12) in 3D printing by examining four mixtures with varying ATO concentrations (2.0 to 8.0 wt.%, with a 2.0 wt.% interval).
Nektarios K. Nasikas, Markos Petousis, Vassilis Papadakis, Apostolos Argyros, John Valsamos, Katerina Gkagkanatsiou, Dimitrios Sagris, Constantine David, Nikolaos Michailidis, Emmanuel Maravelakis, Nectarios Vidakis   +10 more
doaj   +1 more source

Enhancing the Performance of 3D‐Printed Polyamide Composites Through Pre‐ and Post‐Processing Methods

Polymer Composites, Volume 47, Issue 11, Page 10002-10017, 10 June 2026.
FDM‐printed polyamide composites and post‐processing by annealing. ABSTRACT In this study, composite filaments with a short carbon fiber (CF) reinforced polyamide 612 (PA612) were produced using the FDM method at three different raster angles (0°, ±45°, 90°).
Busra Eyri, Yusuf Yagci, N. Gamze Karsli, Taner Yilmaz   +3 more
wiley   +1 more source

Carbon nanotubes/α-ZrP sheets for high mechanical performance and flame-retarding polyamides using selective laser sintering

Virtual and Physical Prototyping
The current study presents a facile approach to synthesis carbon nanotube-anchor α-ZrP (CNT@α-ZrP) nanohybrid for multifunctional polyamide 12 (PA12) composites via ball-milling followed by selective laser sintering (SLS) process. Herein, CNTs serve dual
Sensen Han, Shuangshan Li, Xuyang Song, Zhiqiang Zhou, Qingshi Meng, Sherif Araby, Amir A. Abdelsalam   +6 more
doaj   +1 more source