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View article: Tunable Elasto‐Viscoplastic Properties of Polymer Blends for 3D Printing Applications
Tunable Elasto‐Viscoplastic Properties of Polymer Blends for 3D Printing Applications Open
Post‐extrusion flow dynamics of soft matter are governed by their elasto‐viscoplastic (EVP) rheological properties, which influence filament stability, die swelling, and shape fidelity in extrusion‐based 3D printing. Achieving precision an…
View article: Propagation of Orientation Across Lengthscales in Sheared Self‐Assembling Hierarchical Suspensions via Rheo‐PLI‐SAXS
Propagation of Orientation Across Lengthscales in Sheared Self‐Assembling Hierarchical Suspensions via Rheo‐PLI‐SAXS Open
Simultaneous rheological, polarized light imaging, and small‐angle X‐ray scattering experiments (Rheo‐PLI‐SAXS) are developed, thereby providing unprecedented level of insight into the multiscale orientation of hierarchical systems in simp…
View article: Forging out-of-equilibrium supramolecular gels
Forging out-of-equilibrium supramolecular gels Open
The design of supramolecular hydrogels comprising aligned domains is important for the fabrication of biomimetic materials and applications in optoelectronics. One way to access such materials is by the self-assembly of small molecules int…
View article: Effect of Al-Cu-Fe Quasicrystal Particles on the Reinforcement of a Polymer–Matrix Composite: From Surface to Mechanical Properties
Effect of Al-Cu-Fe Quasicrystal Particles on the Reinforcement of a Polymer–Matrix Composite: From Surface to Mechanical Properties Open
We examined the effect of Al59Cu25Fe13B3 (at.%) quasicrystalline (QC) reinforcement particles on the mechanical and surface properties of a polymer-matrix composite by applying a technical polymer polyphthalamide (PPA). The observed increa…
View article: ForMAX – a beamline for multiscale and multimodal structural characterization of hierarchical materials
ForMAX – a beamline for multiscale and multimodal structural characterization of hierarchical materials Open
The ForMAX beamline at the MAX IV Laboratory provides multiscale and multimodal structural characterization of hierarchical materials in the nanometre to millimetre range by combining small- and wide-angle X-ray scattering with full-field …
View article: ForMAX -- a beamline for multiscale and multimodal structural characterization of hierarchical materials
ForMAX -- a beamline for multiscale and multimodal structural characterization of hierarchical materials Open
The ForMAX beamline at the MAX IV Laboratory provides multiscale and multimodal structural characterization of hierarchical materials in the nm to mm range by combining small- and wide-angle x-ray scattering with full-field microtomography…
View article: Biomimetic Antibacterial Gelatin Hydrogels with Multifunctional Properties for Biomedical Applications
Biomimetic Antibacterial Gelatin Hydrogels with Multifunctional Properties for Biomedical Applications Open
A facile novel approach of introducing dopamine and [2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide via dopamine-triggered in situ synthesis into gelatin hydrogels in the presence of ZnSO4 is presented in this study…
View article: An Intriguing Array of Extrudate Patterns in Long‐Chain Branched Polymers During Extrusion
An Intriguing Array of Extrudate Patterns in Long‐Chain Branched Polymers During Extrusion Open
Front cover: In article 2300088, Roland Kádár and co-workers point out that melt flow extrusion instabilities (MFEI) in long-chain branched polymers is a rather neglected topic in the field. In this study an intriguing array of MFEI in low…
View article: Mapping surface defects in highly-filled wood fiber polymer composite extrusion from inline spectral analysis
Mapping surface defects in highly-filled wood fiber polymer composite extrusion from inline spectral analysis Open
Surface defects in highly-filled wood polymer composites (WPCs) are mapped in single-screw extrusion via inline optical spectral analysis for the first time. The effects of wood fiber content and drying on the dynamics of surface defects a…
View article: Polyethylene Based Ionomers as High Voltage Insulation Materials
Polyethylene Based Ionomers as High Voltage Insulation Materials Open
Polyethylene based ionomers are demonstrated to feature a thermo‐mechanical and dielectric property portfolio that is comparable to cross‐linked polyethylene (XLPE), which may enable the design of more sustainable high voltage direct‐curre…
View article: An Intriguing Array of Extrudate Patterns in Long‐Chain Branched Polymers During Extrusion
An Intriguing Array of Extrudate Patterns in Long‐Chain Branched Polymers During Extrusion Open
The present study highlights a range of surface and volume extrudate patterns that can be detected during the extrusion flow of long‐chain branched polymers. Thus, four linear low‐density polyethylenes (LDPEs) have been extruded using a si…
View article: Tribological behaviour of green wood-based unrecycled and recycled polypropylene composites
Tribological behaviour of green wood-based unrecycled and recycled polypropylene composites Open
In this study we evaluated the tribological performance of polypropylene composites with wood-flour fillers obtained as a by-product from the wood-processing industry, which were based on unrecycled and recycled polypropylene polymer matri…
View article: Challenges in nano-structured fluid flows for assembly into hierarchical biomaterials
Challenges in nano-structured fluid flows for assembly into hierarchical biomaterials Open
Hierarchical biomaterials have their place in the context of developing novel material systems particularly in the framework of sustainability. The key to their development is in controlling their assembly into hierarchical orders at vario…
View article: Long-Term Creep Compliance of Wood Polymer Composites: Using Untreated Wood Fibers as a Filler in Recycled and Neat Polypropylene Matrix
Long-Term Creep Compliance of Wood Polymer Composites: Using Untreated Wood Fibers as a Filler in Recycled and Neat Polypropylene Matrix Open
Neat (NPP) and recycled (RPP) polypropylene matrix materials were used to prepare wood–polymer composites with untreated wood fibers up to 40 wt.%. Long-term creep properties obtained through the time-temperature superposition showed super…
View article: High pressure dissipative granular materials for earthquake protection of houses
High pressure dissipative granular materials for earthquake protection of houses Open
In the recent years different types of dampers for structural control in civil engineering have been developed, where one of the most promising solutions are viscoelastic dampers. In this paper we demonstrate that by utilizing knowledge on…
View article: Neural networks for predicting the temperature-dependent viscoelastic response of PEEK under constant stress rate loading
Neural networks for predicting the temperature-dependent viscoelastic response of PEEK under constant stress rate loading Open
High-performance polymer composites are used in demanding applications in civil and aerospace engineering. Often, structures made from such composites are monitored using structural health monitoring systems. This investigation aims to use…
View article: Insight into the Surface Properties of Wood Fiber-Polymer Composites
Insight into the Surface Properties of Wood Fiber-Polymer Composites Open
The surface properties of wood fiber (WF) filled polymer composites depend on the filler loading and are closely related to the distribution and orientation in the polymer matrix. In this study, wood fibers (WF) were incorporated into ther…
View article: Do the particle size, molecular weight, and processing of UHMWPE affect its thermomechanical and tribological performance?
Do the particle size, molecular weight, and processing of UHMWPE affect its thermomechanical and tribological performance? Open
UHMWPE has exhibited excellent performance when used as contact surfaces in tribo- logical contacts. Traditionally, only UHMWPE grades, with narrow particle size and mo- lecular weight distribution, have been deemed suitable for such appli…
View article: Effect of Wood Fiber Loading on the Chemical and Thermo-Rheological Properties of Unrecycled and Recycled Wood-Polymer Composites
Effect of Wood Fiber Loading on the Chemical and Thermo-Rheological Properties of Unrecycled and Recycled Wood-Polymer Composites Open
Novel wood fiber (WF)-polypropylene composites were developed using the extrusion process with a twin-screw extruder. The influence of different mass addition of WF to unrecycled polypropylene (PP) and recycled PP (R-PP) on the chemical, t…
View article: Rheological Behaviour of Highly Filled Materials for Injection Moulding and Additive Manufacturing: Effect of Particle Material and Loading
Rheological Behaviour of Highly Filled Materials for Injection Moulding and Additive Manufacturing: Effect of Particle Material and Loading Open
Within this paper, we are dealing with a mixture of thermoplastic polymer that is filled with inorganic fillers at high concentrations up to 60 vol.%. A high number of particles in the compound can substantially change the rheological beha…
View article: Needleless Electrospinning of PA6 Fibers: The Effect of Solution Concentration and Electrospinning Voltage on Fiber Diameter
Needleless Electrospinning of PA6 Fibers: The Effect of Solution Concentration and Electrospinning Voltage on Fiber Diameter Open
Needleless electrospinning is the process of forming thin material fibers from the open surface of its solution or melt in a strong electrostatic field. Electrospun non-woven materials are used in various applications that require specific…
View article: PRESSURE OPTIMISED VISCOELASTIC VIBRATION AND IMPACT INSULATION
PRESSURE OPTIMISED VISCOELASTIC VIBRATION AND IMPACT INSULATION Open
<jats:p>Within this contribution we present recently published findings [1] on the new way of utilizing polymeric materials for vibration damping. We present and demonstrate patented dissipative bulk and granular systems technology […
View article: Models to Predict the Viscosity of Metal Injection Molding Feedstock Materials as Function of Their Formulation
Models to Predict the Viscosity of Metal Injection Molding Feedstock Materials as Function of Their Formulation Open
The viscosity of feedstock materials is directly related to its processability during injection molding; therefore, being able to predict the viscosity of feedstock materials based on the individual properties of their components can great…