A5060856988- Carbon Nanotubes in Composites
- Polysaccharides and Plant Cell Walls
- Electromagnetic wave absorption materials
- Graphene research and applications
- Additive Manufacturing and 3D Printing Technologies
- Advanced Cellulose Research Studies
- Nanotechnology research and applications
- Nanomaterials and Printing Technologies
- Tree Root and Stability Studies
- Diamond and Carbon-based Materials Research
- Plant Surface Properties and Treatments
- Dielectric materials and actuators
- Plant Water Relations and Carbon Dynamics
- Liquid Crystal Research Advancements
Texas A&M University
2017-2020
RF heating of carbon nanotubes enables local welding and increased strength between 3D-printed thermoplastic layers.
Here, we give the first-ever report of radio frequency (RF) electromagnetic heating polymer nanocomposite materials via direct-contact and capacitively coupled electric field applicators. Notably, RF allows to be resistively heated with fields. We highlight our novel technique for multiwalled carbon nanotube (MWCNT) thermoplastic composites measure their broadband dielectric properties. also demonstrate three different applicator configurations discuss practical use in an industrial setting....
In this report, we investigate the rapid heating ability of laser-induced graphene (LIG) in response to radio frequency (RF) fields. Graphitic structures were produced from various industrially prevalent thermoplastics via laser irradiation polymer surface. We find that RF responsive, graphitic may be Kapton, polyether imide (PEI), sulfone (PESU), ether ketone (PEEK), and polycarbonate (PC) using a conventional cutting machine. The are also electrically conductive addition being responsive....
Material extrusion (ME) 3D printing is a revolutionary technique for manufacturing thermoplastic parts; however, the printed parts typically suffer from poor interlayer bonding, which causes weak tensile strength in build direction. Many methods have been proposed to address mechanical deficiencies of 3D-printed parts, but most fall short production-ready solution. Here we report use dielectric barrier discharge (DBD) plasma electrode mounted concentrically around nozzle an ME printer situ...
A Landau-de Gennes formulation was implemented in dynamic finite element simulations to compare with postshear relaxation experiments that were conducted on cholesteric cellulose nanocrystal (CNC) dispersions. Our study focused the microstructural reassembly of CNCs lyotropic dispersions as parameters such chiral strength and gap confinement varied. simulation results show homeotropic and/or more complicated three-dimensional helical configurations are possible, depending choice these...
A Landau-de Gennes formulation coupled with a mass-transfer equation was used to track the evaporation front and development of chiral microstructures during casting sulfuric acid-hydrolyzed cellulose nanocrystal (CNC) films. These simulations are compared thin-film experiments that analogous processing parameters environments. The results show initial concentration, strength, surface anchoring, speed drying, influence shear alignment all affect uniformity microstructure orientation...