Results 71 to 80 of about 5,294,508 (322)

Polyamide 12/Multiwalled Carbon Nanotube and Carbon Black Nanocomposites Manufactured by 3D Printing Fused Filament Fabrication: A Comparison of the Electrical, Thermoelectric, and Mechanical Properties

C++ Conference, 2021
In this study, nanocomposites with polyamide 12 (PA12) as the polymer matrix and multiwalled carbon nanotubes (MWCNTs) and carbon black (CB) at different loadings (2.5, 5.0, and 10.0 wt.%) as fillers, were produced in 3D printing filament form by melt ...
N. Vidakis, M. Petousis, L. Tzounis, E. Velidakis, N. Mountakis, S. Grammatikos   +5 more
semanticscholar   +1 more source

Charge‐Induced Morphing Gels for Bioinspired Actuation

Advanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu, Saba Firouznia, Charl F. J. Faul, Majid Taghavi, Jonathan Rossiter   +4 more
wiley   +1 more source

An Advanced Surface Treatment Technique for Coating Three-Dimensional-Printed Polyamide 12 by Hydroxyapatite

Coatings
Polymer 3D printing has is used in a wide range of applications in the medical field. Polyamide 12 (PA12) is a versatile synthetic polymer that has been used to reconstruct bony defects.
A. Alhotan, Saleh M Alhijji, S. Abdalbary, Rania E. Bayoumi, Jukka P. Matinlinna, Tamer M. Hamdy, Rasha M. Abdelraouf   +6 more
semanticscholar   +1 more source

Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling

Advanced Functional Materials, EarlyView.
Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor, Youwei Ma, Hyunwoo Park, Tae‐Lim Choi, Damien Guironnet, Francesco Stellacci   +5 more
wiley   +1 more source

On the failure assessment diagram methodology in polyamide 12

Engineering Fracture Mechanics, 2022
For the first time, the Failure Assessment Diagrams of Polyamide 12, PA12, processed via a conventional technique as injection moulding, IM, and an additive manufacturing technique as Selective Laser Sintering, SLS, were determined via Finite Element Analysis (FEA) using a stress–strain equation more appropriate to describe the mechanical behaviour of ...
Martínez, Mario, Cano, Alberto Jesús, Salazar, Alicia, Rodríguez, Jesús   +3 more
openaire   +3 more sources

Solvent‐Free Bonding Mechanisms and Microstructure Engineering in Dry Electrode Technology for Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
Dry electrode technology revolutionizes battery manufacturing by eliminating toxic solvents and energy‐intensive drying. This work details two promising techniques: dry spray deposition and polymer fibrillation. How their unique solvent‐free bonding mechanisms create uniform microstructures for thicker, denser electrodes, boosting energy density and ...
Yuhao Liang, Hao Long, Zimo Huang, Ting He, Xueming Chen, Meng Li, Hao Chen, Shanqing Zhang   +7 more
wiley   +1 more source

Investigation of the mechanical properties of polyimide fiber/polyamide 12 composites printed by Multi Jet Fusion [PDF]

, 2023
Mei Chen, Yanbei Hou, Ran An, Wei Shian Tey, Ming Gao, Jiayao Chen, Lihua Zhao, Kun Zhou   +7 more
openalex   +1 more source

Development and Optimization of Medical-Grade Multi-Functional Polyamide 12-Cuprous Oxide Nanocomposites with Superior Mechanical and Antibacterial Properties for Cost-Effective 3D Printing

Nanomaterials, 2022
In the current study, nanocomposites of medical-grade polyamide 12 (PA12) with incorporated copper (I) oxide (cuprous oxide-Cu2O) were prepared and fully characterized for their mechanical, thermal, and antibacterial properties.
N. Vidakis, M. Petousis, N. Michailidis, S. Grammatikos, C. David, N. Mountakis, Apostolos Argyros, O. Boura   +7 more
semanticscholar   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Polyamide 12 Materials Study of Morpho-Structural Changes during Laser Sintering of 3D Printing [PDF]

, 2021
Gražyna Simha Martynková, Aleš Slíva, Gabriela Kratošová, Karla Čech Barabaszová, Soňa Študentová, Jan Klusák, Silvie Brožová, Tomáš Dokoupil, Sylva Holešová   +8 more
openalex   +1 more source