Multifunctional polyaniline/chloroplatinic acid composite material: Characterization and potential applications

2018 ◽  
Vol 59 (1) ◽  
pp. 66-73 ◽  
Author(s):  
Ersel Ozkazanc ◽  
Hatice Ozkazanc
2014 ◽  
Vol 1611 ◽  
pp. 7-12
Author(s):  
J.G. Carrillo ◽  
J.A. Moo-Tec ◽  
R.A. Gamboa

ABSTRACTIn the present study a new sandwich laminate is designed and mechanically characterized. The laminate is elaborated with a core of particulate composite material consisting of recycled material from milk and juice cartons (multilayer laminate of Tetra Brik®), and HDPE containers from Urban Solid Waste (USW). The elaborated material consists of aluminum facings with a particulate core, consolidated with a thermoplastic adhesive of polypropylene- maleic anhydride. The main properties under tension are evaluated under testing standards. Results show good compatibility in the union of elements, with potential applications in building facades and false walls for the construction and furnishing industries.


2017 ◽  
Vol 16 (02) ◽  
pp. 061-071
Author(s):  
Reza Forghani

AbstractDual-energy computed tomography (DECT) is an advanced form of computed tomography (CT), in which image acquisition is performed at two different energy spectra, instead of a single-energy spectrum using conventional single-energy CT (SECT). This enables the creation of different reconstructions and quantitative spectral tissue analysis beyond what is possible with SECT. In adults, there are increasing clinical applications of DECT for all organ systems, including neuroimaging and head and neck imaging. However, there are relatively few studies evaluating applications of DECT for pediatric imaging and little to none in neuroimaging or head and neck imaging. The purpose of this article is to provide an overview and familiarize the readers with DECT. This article will review the fundamental principles behind DECT, including different DECT acquisition systems and principles of DECT material characterization. This will be followed by a review of potential applications of DECT, many based on imaging the head and neck. The objectives are to familiarize the readers with this exciting technology and hopefully serve as a primer for investigations and applications of DECT for pediatric neuro and head and neck imaging.


Author(s):  
John G. Michopoulos ◽  
John C. Hermanson ◽  
Athanasios Iliopoulos

In this paper we are reporting on the first successful campaign of systematic, automated and massive multiaxial tests for composite material constitutive characterization. The 6 degrees of freedom system developed at the Naval Research Laboratory (NRL) called NRL66.3, was used for this task. This was the in-augural run that served as the validation of the proposed overall constitutive characterization methodology. It involved accomplishing performing 1152 tests in 12 business days reaching a peak throughput of 212 tests per day. We describe the context of the effort in terms of the reasoning and the actual methods behind it. Finally, we present representative experimental data and associated constitutive characterization results for representative loading paths.


Author(s):  
Poorna Chandrika Sabapathy ◽  
Sabarinathan Devaraj ◽  
Parthiban Anburajan ◽  
Amreesh Parvez ◽  
Preethi Kathirvel ◽  
...  

2015 ◽  
Vol 1754 ◽  
pp. 61-67
Author(s):  
Ravi Gaikwad ◽  
Xunchen Liu ◽  
Priyesh Dhandharia ◽  
Thomas Thundat

ABSTRACTA special class of polymer called dendrons which are repeatedly branched polymers linked together by a network of cascade branched monomers. A composite of these dendritic polymers with linear polymers may have unique physical and chemical properties. Using contact resonance mode of atomic force microscopy we are able to detect the viscoelastic properties of the dendritic formation of the polyethylene oxide (PEO) mixed with Polyvinylpyrrolidone (PVP). PEO is known to form nanometric crystallites due to the diffusion limited aggregation process. However, the dendritic formation in the mixture has not been reported before. The amplitude and phase of the contact resonance shows a clear dendritic growth of PEO in the composite material. The extent of the polymer crystallization can be several nanometers thick within the composite material. Additionally, the intrinsic properties of such polymers to form denrimers can be explored for fabricating polymer composites having numerous potential applications in chemical sensing, drug-delivery, energy applications and many more.


2019 ◽  
Vol 3 (4) ◽  
pp. 1-4
Author(s):  

In recent years, photocatalytic technology has received attention for environmental protection. In this study, the usefulness of iron nanostructures generated by anodization was confirmed. Moreover, the synergistic effect of anodized iron (hematite, α-Fe₂O₃) and MWCNT (multi-walled carbon nanotube) was confirmed by methylene blue (MB) decomposition by MWCNT /α-Fe₂O₃ composite material. Electrophoretic deposition(EPD) was used as a method of making the MWCNT/α-Fe₂O₃ composite material. Characterization of the anodized samples and samples after EPD was performed by SEM and XRD, and concentration measurement of MB decomposition was performed using a spectrophotometer. The MB decomposition rate was improved in all the samples with MWCNT and the highest obtained with the MWCNT/α-Fe₂O₃ sample


2021 ◽  
Vol 8 ◽  
pp. 1
Author(s):  
Yan An ◽  
Jinyuan Qin ◽  
Kai Sun ◽  
Jiahong Tian ◽  
Zhongyang Wang ◽  
...  

With the development of periodic metamaterials, more attention has been paid to negative permittivity behavior due to great potential applications. In this paper, silver nanowires (AgNWs) were introduced to the porous carbon fibers (CFS) by an impregnation process to prepare CFS/AgNWs composites with different content of AgNWs and the dielectric property was investigated. With the formation of conductive network, the Drude-like negative permittivity was observed in CFS/AgNWs composites. With the increase of AgNWs, the connectivity of conductive network became enhanced, the conductivity gradually increases, and the absolute value of the negative dielectric constant also increases to 8.9 × 104, which was ascribed to the enhancement of electron density of the composite material. Further investigation revealed that the inductive characteristic was responsible for the negative permittivity.


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