A5010003332- Polymer Nanocomposites and Properties
- Chemical Synthesis and Characterization
- Non-Destructive Testing Techniques
- Geochemistry and Geologic Mapping
- Orthopaedic implants and arthroplasty
- Silicone and Siloxane Chemistry
- Geological and Geochemical Analysis
- Advanced Sensor and Energy Harvesting Materials
- Lignin and Wood Chemistry
- Sensor Technology and Measurement Systems
- Geomechanics and Mining Engineering
- Carbon Nanotubes in Composites
- Radioactive element chemistry and processing
- Electrochemical sensors and biosensors
- Nanomaterials and Printing Technologies
- Polymer crystallization and properties
- Mineralogy and Gemology Studies
- Tribology and Wear Analysis
- Hydrocarbon exploration and reservoir analysis
- Structural Health Monitoring Techniques
- Dielectric materials and actuators
- Polydiacetylene-based materials and applications
- Petroleum Processing and Analysis
- Thermal properties of materials
- Surfactants and Colloidal Systems
China University of Petroleum, East China
2024
Texas A&M University
2019-2023
Shaanxi University of Science and Technology
2019-2021
ExxonMobil (United States)
2021
University of Florida
2018
Dual-epoxide modification of α-zirconium phosphate (ZrP) nanoplatelets containing a bromine initiator was performed for surface-initiated activators regenerated by electron transfer atom radical polymerization, resulting in poly(methyl methacrylate)-grafted ZrP (ZrP-g-PMMA) dispersion PMMA matrix. The morphology the nanocomposites with variations grafting density (σ) and grafted length (Ng) on ZrP-g-PMMA fixed matrix chain (Nm) investigated using transmission microscopy. Various types...
Poly(ethylene-co-vinyl acetate) (PEVAc) nanocomposites containing exfoliated α-zirconium phosphate (ZrP) have been prepared using a simple solution mixing method to improve their barrier and mechanical properties. ZrP was pre-exfoliated with surfactant, followed by additional targeted surface functionalization surfactant exchange allow for hydrogen bonding of the acetate functionality on PEVAc hydrophobicity. The solvent is found play an important role in stabilizing exfoliation presence...
Shape memory photonic crystals may hold the key to continuing development of smart optical coatings and next-generation all-optical integrated circuits. The reconfigurability these materials in response various external stimuli is not only aesthetically appealing but also fundamentally important guiding design emerging reconfigurable nanophotonic devices. Here we report a new type polymer shape crystal (PSMPC) that shows autonomous Laplace pressure-driven, elastic modulus-dependent...
Abstract The accumulation of non‐degradable petrochemical plastics imposes a significant threat to the environment and ecosystems. We addressed this challenge by designing new type phototunable based on unique lignin chemistry enable readily end‐life recycling. advanced material design leveraged efficient photocatalytic depolymerization ZnO nanoparticles build lignin‐polymethyl methacrylate (PMMA)‐ZnO blends. first demonstrated highly effective in complex polymer blend matrix explored...
Abstract Incorporation of reinforcing nanoparticles, like multi‐walled carbon nanotubes (MWCNTs), in a polymer matrix is an effective way to enhance mechanical properties and expand structural applications engineering polymers such as poly(ether‐ether‐ketone) (PEEK). Good dispersion MWCNTs critical for achieving optimal properties. In this work, simple solution mixing approach was utilized prepare PEEK nanocomposites reinforced with MWCNTs. By direct PEEK/dichloroacetic acid MWCNT/ N...
Alkyl ligands with an amine or thiol headgroup have been chosen to investigate their effectiveness in preventing copper nanowire (Cu NW) oxidation hydrothermal and hygrothermal environments. Ligand desorption has found be the key reason for Cu NWs oxidize a wet environment. Alkylamines interact through weak coordination bonding, which would desorb easily, rendering prone oxidation. Adding excess alkylamines aqueous solution can suppress NW oxidation, keep oxidation-free upon processing...
Polymer nanocomposites containing well-exfoliated nanoplatelets have been shown to possess greatly enhanced physical and mechanical properties. However, it is still a significant challenge achieve adequate exfoliation of 2D in polyolefin matrices due poor compatibility associated entropic penalty between inorganic filler nonpolar matrices. Grafting chains onto the surfaces an already exfoliated nanoplatelet simple, yet effective solution this problem. The grafted on can entangle...
Abstract Reinforcing poly(ether‐ether‐ketone) (PEEK) with multi‐walled carbon nanotubes (MWCNT) is of great interest for harsh environment applications, such as seals oil and gas recovery because its expected superior thermal mechanical properties environmental stability. In this research, a PEEK nanocomposite containing 10 wt% well‐dispersed MWCNT was successfully prepared using solution mixing approach. Compared to commercial PEEK/PBI (polybenzimidazole) blend benchmark, PEEK/MWCNT...
Viscosity modifiers are inherent to many lubricating multigrade oils as they reduce the temperature dependence on viscosity of oil, thus increasing index. However, direct evidence physical mechanisms which increase index is still lacking due lack appropriate analysis tools. Here, we report a method using dynamic light scattering (DLS) study solution behavior and coil size change ethylene-propylene copolymers well polyoctadecylmethacrylate at 1.0 wt. % in polyalphaolefin oil. The usefulness...
Abstract Polymers containing a certain amount of long‐chain‐branching (LCB) structure are expected to possess improved mechanical properties over those the linear counterpart. However, fundamental knowledge on structure–property relationship in LCB polypropylene (PP) is still illusive. In present study, set model PP systems an increasing molar fraction (5–19 mol%) were prepared by reactive extrusion determine how content may influence scratch behavior PP. It shown that with only 5 mol% can...