Results 91 to 100 of about 3,694 (226)

Comparative Analysis of Three Vertebral Screw Placement Directions in Anterior Thoracolumbar Fracture Surgery: A Finite Element Study

Orthopaedic Surgery, Volume 17, Issue 5, Page 1464-1477, May 2025.
This study compares the biomechanical effects of three anterior fixation systems in thoracolumbar surgery—HXTL, NHXTL, and Medtronic's CD Horizon ANTERIOR. Finite element analysis evaluates stress and displacement across vertebral bodies and support structures under varying load conditions. Results indicate the HXTL system minimizes nail–rod stress yet
Xuehai Jia, Yanjun Xie, Yi Yang, Yi Deng, Kerui Zhang, Changyong Shen, Ya Li, Litai Ma   +7 more
wiley   +1 more source

Material Limitations and Processing Challenges of Bio‐Based Thermoplastics: A Review

Journal of Applied Polymer Science, Volume 143, Issue 14, April 10, 2026.
This review highlights recent advances in bio‐based thermoplastic polymers (b‐bTPs), focusing on their composition, formulation challenges, and industrial applications. Key aspects include the use of additives and blends to improve performance, microcellular injection molding techniques, and the recyclability of b‐bTPs foams.
Catarina Faria, Daniel Reis, Diana Dias, Renato Reis, Sílvia Cruz   +4 more
wiley   +1 more source

Bio-Based Alkali Lignin Cooperative Systems for Improving the Flame Retardant and Mechanical Properties of Rigid Polyurethane Foam. [PDF]

Polymers (Basel), 2023
Li X, Liu C, An X, Niu L, Feng J, Liu Z.
europepmc   +1 more source

Dynamic Covalent Polymeric Foams: En Route to a Sustainable Lightness

ChemSusChem, Volume 19, Issue 5, 13 March 2026.
Dynamic covalent polymer foams (DCPFs) combine lightweight cellular structures with adaptive polymer networks, enabling self‐healing, reprocessability, and recyclability. By integrating reversible covalent bonds into foam architectures, these materials open new pathways toward sustainable porous polymers within a circular materials economy.
Antoine Adjaoud, Anaë Girault‐Fodil, Farida Baraka, Pierre Verge   +3 more
wiley   +1 more source

Polyurethane reinforced with micro/nano waste slag as a shielding panel for photons (experimental and theoretical study)

Scientific Reports
This study not only provides an innovative technique for producing rigid polyurethane foam (RPUF) composites, but it also offers a way to reuse metallurgical solid waste.
Ahmed M. El-Khatib, Mahmoud I. Abbas, Mohamed E. Mahmoud, Mohammed Fayez-Hassan, Mamdouh H. Khalil, Ahmed Abd El Aal   +5 more
doaj   +1 more source

3D-printed motorcycle seats: Replicating polymer foam performance for rapid prototyping and rider comfort

Advances in Industrial and Manufacturing Engineering
The development of prototypes prior to the market launch of final products requires adapting production components to reduce costs and increase flexibility for potential modifications.
Andrea Montalti, Patrich Ferretti, Fiammetta Spano, Alfredo Liverani   +3 more
doaj   +1 more source

Study on the Flame Retardancy of Rigid Polyurethane Foam with Phytic Acid-Functionalized Graphene Oxide. [PDF]

Molecules, 2023
Zhou X, Jiang F, Hu Z, Wu F, Gao M, Chai Z, Wang Y, Gu X, Wang Y.   +8 more
europepmc   +1 more source

Polyurethane Cascade Depolymerization by a Combination of Thermal Pretreatment and Enzymatic Hydrolysis

ChemSusChem, Volume 19, Issue 5, 13 March 2026.
This study explored the cascade depolymerization of a polyether‐polyester polyurethane based on a combination of low‐temperature thermal treatment and enzymatic hydrolysis. Heat pretreatment changed the physicochemical properties of polyurethane, followed by cutinase‐catalyzed hydrolysis, leading to an increase in weight loss and the production of two ...
Shengwei Sun, Sathiyaraj Subramaniyan, Ganapathy Ranjani, Leandro Cid Gomes, Diana Bernin, Thomas Bayer, Uwe T. Bornscheuer, Minna Hakkarainen, Per‐Olof Syrén   +8 more
wiley   +1 more source

Production of Bio-Based Polyol from Coconut Fatty Acid Distillate (CFAD) and Crude Glycerol for Rigid Polyurethane Foam Applications. [PDF]

Materials (Basel), 2023
Salcedo MLD, Omisol CJM, Maputi AO, Estrada DJE, Aguinid BJM, Asequia DMA, Erjeno DJD, Apostol G, Siy H, Malaluan RM, Alguno AC, Dumancas GG, Lubguban AA.   +12 more
europepmc   +1 more source

Flexible Dry Electrodes Based on Styrene‐Ethylene‐Butylene‐Styrene/Carbon Black and Ethylene‐Vinyl Acetate/Carbon Black for Electroencephalography: Electrical, Thermal and Mechanical Properties

Journal of Applied Polymer Science, Volume 143, Issue 9, March 5, 2026.
Graphical overview of the fabrication of conductive nanocomposite electrodes from polymer‐filler mixtures, their integration into a multipin EEG interface, and their application in recording brain electrical activity for improved EEG signal monitoring.
George Gnonhoue, Éric David, Jérémie Voix, Ilyass Tabiai   +3 more
wiley   +1 more source