A5020287079- Polymer Nanocomposites and Properties
- Orthopaedic implants and arthroplasty
- Additive Manufacturing and 3D Printing Technologies
- biodegradable polymer synthesis and properties
- Bone Tissue Engineering Materials
- Polymer crystallization and properties
- Characterization and Applications of Magnetic Nanoparticles
- Dental materials and restorations
- Advanced Polymer Synthesis and Characterization
- Material Dynamics and Properties
- Polymer composites and self-healing
- Silicone and Siloxane Chemistry
- Surfactants and Colloidal Systems
- Fern and Epiphyte Biology
- Fiber-reinforced polymer composites
- Pickering emulsions and particle stabilization
- Photonic Crystals and Applications
- Granular flow and fluidized beds
- Semiconductor materials and interfaces
- Nanocomposite Films for Food Packaging
- Advanced Cellulose Research Studies
- Surgical Sutures and Adhesives
- 3D Printing in Biomedical Research
- Microencapsulation and Drying Processes
- Advanced Energy Technologies and Civil Engineering Innovations
Central European Institute of Technology
2018-2021
Brno University of Technology
2016-2021
Slovak University of Technology in Bratislava
1973
The final thermo-mechanical properties of structural parts fabricated by masked stereolithography (MSLA) are highly determined not only the processing parameters, but also post-processing methods. Improper implementation post-treatment often leads to underperforming printouts. A novel tool for complex characterization 3D printed bodies was developed and systematically demonstrated on a commercial free-radical photopolymerization (FRP) resin. method relies superimposed static oscillatory...
Influence of nanoparticle (NP) spatial organization on relaxation and mechanical properties polymer nanocomposites (PNCs) was investigated. For the first time, PNCs with various nanostructures at constant chemical composition were related to their experimentally determined structural parameters—effective interfacial surface interparticle distance. Segmental scale reinforcement active below above glass transition attributed immobilization frustration segments caused by attractive...
Qualitative differences between nanoparticle aggregates and chain bound clusters the structural impact on properties of adsorbing solution blended polymer nanocomposites.
Bioinspired structures can attain mechanical properties unseen in conventional artificial materials. Specifically, the introduction of a cellular structure with precisely designed distribution cells, cell sizes, and walls is expected to enhance response. Polylactic acid (PLA) biodegradable polymer produced from renewable resources very interesting good three-dimensional (3D) printing processability. However, its embrittlement during ageing at room temperature after short period time (a few...
The current limitations of calcium phosphate cements (CPCs) used in the field bone regeneration consist their brittleness, low injectability, disintegration body fluids and biodegradability. Moreover, no method is currently available to measure setting time CPCs correlation with evolution reaction. study proposes that it possible improve tune properties via addition a thermosensitive, biodegradable, thixotropic copolymer based on poly(lactic acid), poly(glycolic acid) poly(ethylene glycol)...
Despite their unprecedented potential, polymer nanocomposites (PNCs) have not reached forecasted industrial utilization, yet. Insufficient control of nanoparticle (NP) spatial organization in the matrix was recognized as bottleneck further PNC applications. Therefore, thermodynamic parameters enabling a general estimate nanocomposite (NC) structure any solution were investigated this study. The effect polymer–particle–solvent interactions on final NP dispersion PNCs examined depth. Our...
We report a study of spatial light modulation in the photonic structure jewel scarabs, revealing interplay polarization and phase control light, which is not possible with current optical technology. Phase measurements performed on scarabs demonstrate that anomalous (helicity-preserving) reflection occurs together alteration dynamic associated path length. This differs from operation artificially prepared polarization-sensitive structures, shaping through geometric altered by transformation....
Structuring of polymer nanocomposites (PNCs) with an aid relatively weak external magnetic fields has been studied as a method for control the nano‐ and microstructure. Magnetic nanoparticles (NPs) were assembled into high aspect ratio one‐dimensional strings unidirectionally oriented field ( B = 0–50 mT) within photopolymer matrix. The effect anisotropic MNPs assemblies on mechanical properties was over wide temperature range first time. impact various reinforcing mechanisms distinguished...
The interface properties and transport parameters of CdSeSixOy CdSeDy2O3 thin film structures in “gap” configuration have been studied. deposited SixOy changed the depletion layer originally present at CdSe surface into an accumulation one while Dy2O3 only lowered surface. creation structure results a greater influence on carrier scattering film. An attempt was made to explain different behaviour dielectrics used. Es wurden die Grenzschichteigenschaften und Transportparameter von...
We report on unique enhancement of fracture resistance poly(methyl methacrylate) (PMMA) using short and low bending modulus poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers.While no significant effect the PBO fibers stiffness strength was observed, strain at break energy were enhanced substantially.The in situ observations damage development during tensile tests showed that additional extrinsic toughening mechanisms consists homogenous distribution micro-cracking delocalization deformation...
Despite substantial research efforts, the potential of polymer nanocomposites has still not been fully revealed, mainly due to poor control over dispersion and alignment nanoparticles (NPs). Since nanocomposite properties are controlled by structural variables, it is crucial achieve NP assembly process.Self-assembly NPs offers limited spatial arrangement. This process results in a poorly variation simple structures such as agglomerates, clusters dispersed with resulting structure strongly...