A5075010118- Carbon Nanotubes in Composites
- Nanotechnology research and applications
- Epoxy Resin Curing Processes
- Fiber-reinforced polymer composites
- Mechanical Behavior of Composites
- Graphene research and applications
- Injection Molding Process and Properties
- Smart Materials for Construction
- Advanced Sensor and Energy Harvesting Materials
- Manufacturing Process and Optimization
- Dielectric materials and actuators
- Additive Manufacturing and 3D Printing Technologies
- Electronic Packaging and Soldering Technologies
- Thermal properties of materials
- Polymer Nanocomposites and Properties
- Conducting polymers and applications
- Synthesis and properties of polymers
- Industrial Vision Systems and Defect Detection
- Spectroscopy and Chemometric Analyses
- Composite Material Mechanics
- Fuel Cells and Related Materials
- Electromagnetic wave absorption materials
- Sparse and Compressive Sensing Techniques
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advancements in Battery Materials
Florida State University
2016-2025
Florida A&M University - Florida State University College of Engineering
2009-2024
University of California, Berkeley
2024
Shenzhen University
2024
Florida Center for Advanced Aero Propulsion
2018
Florida Agricultural and Mechanical University
2004-2006
Beihang University
2001-2003
Abstract Multi‐walled carbon nanotube (MWNT)‐sheet‐reinforced bismaleimide (BMI) resin nanocomposites with high concentrations (∼60 wt%) of aligned MWNTs are successfully fabricated. Applying simple mechanical stretching and prepregging (pre‐resin impregnation) processes on initially randomly dispersed, commercially available sheets millimeter‐long leads to substantial alignment enhancement, good dispersion, packing density nanotubes in the resultant nanocomposites. The tensile strength...
An effective functionalization method was investigated to take full advantage of the exceptional performance both carbon nanotubes and epoxy polymer for composite application. Epoxy curing agent, EPI-W, grafted single-walled through diazotization. Fourier transformed infrared spectroscopy, Raman differential scanning calorimetry, dynamical mechanical analysis thermo-gravimetric were performed characterize effect. The degree estimated be 1 in 50 carbons nanotube framework. elastic modulus...
Since their discovery in 1991, carbon nanotubes (CNTs) have been considered as the next-generation reinforcement materials to potentially replace conventional fibers for producing super-high-performance lightweight composites. Herein, it is reported that sheets of millimeter-long multi-walled CNTs with stretch alignment and epoxidation functionalization reinforce bismaleimide resin, which results composites an unprecedentedly high tensile strength 3081 MPa modulus 350 GPa, well exceeding...
Abstract Single‐walled carbon nanotubes (SWNTs) are functionalized through both covalent and noncovalent bonding approaches to enhance dispersion interfacial bonding. The coefficient of thermal expansion (CTE) the functionalized‐SWNT‐reinforced epoxy composites measured with a mechanical analyzer (TMA). Experimental results indicate that changes glass‐transition temperature ( T g ) in SWNT–polymer dependent upon functionalization methods. CTE below nanocomposites 1 wt % loading is...
The thermogravimetric, mechanical, and electrical properties of composite sheets produced by infiltrating single-wall carbon nanotube films (also known as 'buckypapers') with polycarbonate solution were characterized. showed improved stiffness toughness, while the conductivity decreased, compared to a neat buckypaper. In addition, polycarbonate/buckypaper higher resistance handling processing damages. Experimental results suggest viability infiltration process means toughen buckypapers...
This paper describes an effective method for quantifying the length and distribution of large populations single-wall carbon nanotubes using atomic force microscopy SIMAGIS software. The results measurements were modelled with Weibull distribution, resulting in a statistically confirmed fit. fitted was used to predict effect factor elastic modulus as functions nanotube properties composite materials. prediction shows that tends increase enhanced loading but decrease rising rope diameter....
Composite materials for bipolar plate applications in proton exchange membrane fuel cells were fabricated from synthetic graphite (SG), natural (NG), or expanded (EG) and novolac phenolic resin using compression molding. In comparing the resultant samples, EG composite exhibited best properties with a density of ∼1.55 g/cm3, flexural strength 109 MPa, modulus 24 GPa even high loading 80 wt % low thickness ∼0.9 mm, as well in-plane conductivity 182 S/cm. The content was further varied to find...
An approach is established for fabricating high-strength and high-stiffness composite laminates with continuous carbon nanotube (CNT) yarns scaled-up mechanical tests potential aerospace structure applications. Continuous CNT up to 80% degree of alignment a unique self-assembled graphitic packing result in their specific tensile strengths 1.77 ± 0.07 N/tex an apparent modulus 92.6 3.2 N/tex. Unidirectional yarn reinforced concentration greater than 80 wt % minimal microscale voids are...
Structural health monitoring (SHM) systems are critical in ensuring the safety of space exploration, as spacecraft and structures can experience detrimental stresses strains. By deploying conventional strain gauges, SHM promptly detect assess localized behaviors structures; however, these gauges limited by low sensitivity (gauge factor, GF ∼ 2). This study introduces an approach to printing with high sensitivity, while also considering stretchability long-term durability. Through direct ink...
This paper presents an effective technique to fabricate thermoplastic nanocomposites with high loading of well-dispersed single-walled carbon nanotubes (SWNTs). SWNT membranes were made from a multi-step dispersion and filtration method, then impregnated polycarbonate solution make nanocomposites. High was achieved by controlling the viscosity solution. SEM AFM characterization results revealed controlled nanostructure in resultant Dynamic mechanical property tests indicated that storage...