Results 51 to 60 of about 196,223 (392)
Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams
Advanced Engineering Materials, EarlyView.This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier +3 more
wiley +1 more source
Toxics, 2023 In this paper we produced a bio-based polyether-polyurethane foam PU1 through the prepolymer method. The prepolymer was obtained by the reaction of PEG 400 with L-Lysine ethyl ester diisocyanate (L-LDI).
Fabrizio Olivito +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.By combining porous, solid, and carbon fiber‐reinforced thermoplastic polyurethane within a single 3D printed honeycomb structure, this current work achieved precise control over spatial stiffness while ensuring strong interlayer adhesion. The findings demonstrate enhanced energy absorption and densification strain, outperforming traditional uniform ...
Savvas Koltsakidis +2 more
wiley +1 more source
Pervaporation Polyurethane Membranes Based on Hyperbranched Organoboron Polyols
Membranes, 2022 On the basis of aminoethers of boric acid (AEBA), polyurethane vapor-permeable and pervaporative membranes were obtained. AEBAs, the structure of which is modified by bulk adducts (EM) of diphenylol propane diglycidyl ether and ethanolamine, were studied.
Ilsiya M. Davletbaeva +7 more
doaj +1 more source
Reprocessing Cross-Linked Polyurethanes by Catalyzing Carbamate Exchange
Macromolecules, 2019 The reprocessing or recycling of cross-linked polymers by incorporating dynamic covalent cross- links has the potential to increase their usable lifetimes and reduce their environmental impact.
David J. Fortman +2 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov +8 more
wiley +1 more source
Polyurethane/poly (Ionic Liquids) Cellulosic Composites and their Evaluation for Separation of CO2 from Natural Gas [PDF]
Materials Research, 2020 The development of both versatile and inexpensive sorbents for CO2/CH4 separation has become one of the greatest challenges to the environment and natural gas processing.
Franciele Longaray Bernard +4 more
doaj +1 more source
A 3D printed drug delivery implant formed from a dynamic supramolecular polyurethane formulation [PDF]
, 2020 Using a novel molecular design approach, we have prepared a thermo-responsive supramolecular polyurethane as a matrix material for use in drug eluting implants.
Clark, E. A. +10 more
core +2 more sources
Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
eXPRESS Polymer Letters, 2016 Segmented linear polyurethanes (PUs) containing Diels-Alder (DA) adduct were synthesized in toluene solution from poly(ε-caprolactone) (PCL, Mn = 10, 25 and 50 kg/mol), diisocyanate (methylene diphenyl diisocyanate (MDI), 2,4-toluene diisocyanate (TDI ...
Cs. Lakatos +5 more
doaj +1 more source