A5068043493- Polymer crystallization and properties
- biodegradable polymer synthesis and properties
- Bone Tissue Engineering Materials
- Additive Manufacturing and 3D Printing Technologies
- Graphene research and applications
- Injection Molding Process and Properties
- Additive Manufacturing Materials and Processes
- Welding Techniques and Residual Stresses
- Thermal properties of materials
- Muon and positron interactions and applications
- Fiber-reinforced polymer composites
- Ultrasonics and Acoustic Wave Propagation
- Recycling and Waste Management Techniques
- Diamond and Carbon-based Materials Research
- Non-Destructive Testing Techniques
- Tribology and Wear Analysis
- Fatigue and fracture mechanics
- High Temperature Alloys and Creep
- Polymer Nanocomposites and Properties
- Advanced Welding Techniques Analysis
Eaton (United States)
2021-2024
University of Toledo
2017-2018
The primary focus of this work was to evaluate the relationship between free volume distribution, chain motion, crystallinity, and gas properties PET upon strain-induced crystallization (SIC) at different stretch ratios. formation a three-phase structure containing rigid amorphous phase, mobile crystalline phase SIC confirmed by differential scanning calorimetry positron annihilation lifetime spectroscopy (PALS). Dynamic mechanical analysis PALS indicated that there significant reduction in...
Abstract 2D nanomaterials are finding numerous applications in next‐generation electronics, consumer goods, energy generation and storage, healthcare. The rapid rise of utility for necessitates developing means their mass production. This study details a new compressible flow exfoliation method producing using multiphase layered materials suspended high‐pressure gas undergoing expansion. expanded gas–solid mixture is sprayed suitable solvent, where significant portion (up to 10% yield) the...
Extrusion-based additive manufacturing (AM) of polymer composites exhibits complex thermally driven phenomena that introduce severe discontinuities in the internal structure across length scales, especially voids or porosity. This study utilizes a high-throughput porosity characterization technique to analyze large datasets from numerous micro-computed tomography (μCT) scans capture influence AM print parameters on size, shape, and location multiple layers (up few cm) fused granular...
An investigation of oleic acid-modified clay versus plain with regard to the physical and barrier properties PET/clay nanocomposites was performed. Montmorillonite (MMT) Cloisite 30B nanoclays were modified by long-chain acid identified as ol-MMT ol-30B, respectively. Fourier Transformed Infrared Spectroscopy X-ray diffraction (XRD) results revealed that fatty associated surface gallery spacing layered silicates expanded. In case ol-MMT, a disordered structure achieved. TGA indicated showed...
The effect of blending two low molecular weight diluents (LMWD), dimethyl terephthalate (DMT) and isophthalate (DMI), on the microstructure, free volume, barrier properties poly(ethylene terephthalate) (PET) was investigated. Incorporation additives at loadings up to 3 wt % led a substantial improvement in PET oxygen, carbon dioxide, helium. Although have similar structures, DMI showed enhanced compared PET/DMT samples. Positron annihilation lifetime spectroscopy as well density measurements...
Ultrasonic fatigue testing is an increasingly used method to study the high cycle (HCF) and very (VHCF) properties of materials. Specimens are cycled at ultrasonic frequency, which leads a drastic reduction times. This work focused on summarising current understanding, based literature data original work, whether how measured with conventional equipment comparable. Aluminium alloys not strain-rate sensitive. A weaker influence air humidity frequencies may lead prolonged lifetimes in some...
In this work, the effect of strain-induced crystallization (SIC) on blends polyethylene terephthalate (PET) with antiplasticizers, dimethyl terephthalate, and isophthalate has been studied. Both, inclusion antiplasticizers SIC affect free volume, volume distribution, barrier properties PET. The addition a synergistic twofold decrease in gas permeability relative to amorphous PET is observed. There shift distribution smaller sizes combined reduction polymer segmental mobility that translates...
Extrusion-based additive manufacturing (AM) of polymer composites exhibits complex thermally driven phenomena that introduce severe discontinuities in the internal structure across length scales, especially voids or porosity. This study utilizes a high-throughput voxel-based image reconstruction technique to analyze large datasets from numerous micro-computed tomography (µCT) scans capture influence AM print parameters on size, shape, and location porosity multiple layers (up few cm) fused...