- Synthesis and properties of polymers
- Silicone and Siloxane Chemistry
- Epoxy Resin Curing Processes
- Carbon Nanotubes in Composites
- Advanced Sensor and Energy Harvesting Materials
- Fiber-reinforced polymer composites
- Tribology and Wear Analysis
- Dielectric materials and actuators
- Smart Materials for Construction
- Nanotechnology research and applications
- Fuel Cells and Related Materials
- Icing and De-icing Technologies
- Surface Modification and Superhydrophobicity
- Plant Surface Properties and Treatments
- Synthetic Organic Chemistry Methods
- Polymer Nanocomposites and Properties
- Conducting polymers and applications
- Particle Dynamics in Fluid Flows
- Spacecraft Design and Technology
- Flame retardant materials and properties
- Advanced ceramic materials synthesis
- Thermal properties of materials
- Polymer composites and self-healing
- Additive Manufacturing and 3D Printing Technologies
- Marine Biology and Environmental Chemistry
Langley Research Center
2012-2024
Hitachi (United Kingdom)
2022-2024
National Aeronautics and Space Administration
2002-2024
University of Cambridge
2022-2024
University of Leeds
1998-2024
Jiangsu University
2020
Eckerd College
2020
National Institute of Aerospace
2006-2009
Old Dominion University
2009
Embry–Riddle Aeronautical University
2004
A rapid, solventless method is described for the decoration of carbon nanotubes with metal nanoparticles. The straightforward two-step process utilizes neither reducing agents nor electric current and involves dry mixing a precursor salt (e.g., acetate) (single- or multi-walled) followed by heating in an inert atmosphere. procedure scalable to multigram quantities generally applicable various other substrates nanofiber, expanded graphite, black) many salts Ag, Au, Co, Ni, Pd acetates). As...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Solubility of Calcium Sulphate in Solutions NitratesAtherton SeidellAtherton SeidellMore by Atherton Seidell and Joseph G. SmithJoseph SmithMore SmithCite this: J. Phys. Chem. 1904, 8, 7, 493–499Publication Date (Print):October 1, 1904Publication History Published online1 May 2002Published inissue 1 October 1904https://doi.org/10.1021/j150061a005Request reuse permissions Article Views99Altmetric-Citations17LEARN ABOUT THESE METRICSArticle Views...
Novel aromatic/aliphatic polyimides were prepared from 2,7-diamino-9,9'-dioctylfluorene (AFDA) and aromatic dianhydrides. Upon investigating the effectiveness of these for debundling single wall carbon nanotubes (SWNTs) in solution, three discovered to aid dispersion SWNTs N,N-dimethylacetamide (DMAc). Two polyimides, one 3,3',4,4'-oxydiphthalic anhydride (ODPA) symmetric 3,3',4,4'-biphenyltetracarboxylic dianhydride (s-BPDA), used prepare nanocomposites. Homogeneous polyimide/SWNT...
Ion-exchange polymer membrane metallic composites (IPMC) are one of the electroactive polymers (EAP) that were shown to have potential application as actuators. The recent introduction perfluorocarboxylate-gold composite with tetra-n-butylammonium and lithium cations instead sodium made most significant improvement material's electroactivity. Under less than 3 volts, such IPMC material induce bending beyond a compete loop. characteristics offered an attractive actuation capability for dust...
Thermoset/carbon nanotube (CNT) sheet nanocomposites were successfully fabricated by resistive heating assisted infiltration and cure (RHAIC) of the polymer matrix resin. Resistive takes advantage electrical thermal conductivity CNTs to rapidly uniformly introduce heat into CNT sheet. Heating reduces viscosity resin due localized temperature rise in close proximity resin, which enhances flow, penetration, wetting reinforcement. Once infusion process is complete, applied power increased raise...
Two phenylethynyl terminated oligomers designated PETI-298 and PETI-330 were developed at the NASA Langley Research Center have emerged as leading candidates for composite applications requiring high temperature performance (i.e. ≥ 288 °C 1000 hours) combined with ability to be readily processed into composites without use of an autoclave or complex lengthy cure postcure cycles. These performance/high are potentially useful on advanced aerospace vehicles in structural aircraft engine...
In the pursuit of resins that offer a unique combination properties primarily for high-performance, high-temperature electronic and aerospace applications, oligomers polymers containing phen...
In an effort to improve polymer thermal conductivity (TC), Ultem TM 1000 was compounded with nano-fillers of carbon allotropes. As-received and modified multiwalled nanotubes (MWCNTs), vapor-grown nanofibers (CNF) expanded graphite (EG) were investigated. Functionalization MWCNTs performed the TC compatibility between resin MWCNTs. It postulated that this may provide improved interface MWCNT which would result in enhanced TC. The mixed inthemeltandinsolution at concentrations ranging from 5...