Personal & Home Care, Food & Agriculture – Page 18

Novel Composites of Carbon Nanotubes with a Poly(Phenylene Ethynylene) by Non-Covalent Wrapping for Photovoltaic Devices

Ramos J.C., Cortes P., Moggio I., Arias E., Martínez C., Moreno K.J., Universidad Autonoma de Ciudad Juarez, MX

Conjugated polymers exhibit optoelectronic properties comparable with those of inorganic semiconductors and with some advantage over them. By their side, carbon nanotubes (CNTs) offer a great opportunity for exciton dissociation. For this reason, the combination [...]

Electric Field Effect on the Rheology of MWCNT Dispersions in Liquid Crystalline Polymers

Cameron-Soto A.R., Acevedo-Rullán A., University of Puerto Rico-Mayagüez, PR

Carbon nanotubes (CNT) are ideal candidates for the development of nanocomposites. Nevertheless, to achieve their potential they should be dispersed and aligned with a specific orientation. Many techniques have been proposed to achieve these requirements [...]

Rigid Poly(vinyl chloride) / Halloysite Nanocomposites

Mondragón M., Roblero Y.S., Sánchez M.E., Zendejas B.E., ESIME-IPN Unidad Azcapotzalco, MX

Polyvinyl chloride (PVC)/ halloysite nanotubes (HNT) nanocomposites were prepared by melt blending of PVC with HNT. PVC masterbatch powders were first hand blended with 1, 3, 5 and 8% w/w of HNT and then melt-mixed [...]

Characterization of poly(vinyl alcohol)-based composites prepared by electrospinning technique with in situ coffining process

Hara C., Tsutsumi H., Yamaguchi University, JP

A number of methods are available for preparing a fiber reinforced polymer composite from two or more polymer matrixes and fibers. We propose new type reinforced polymer composites by electrospinning technique with in situ coffining [...]

Large Area Replication of AAO Nanostructure Using a Solvent Exchange Method and UV-curable Polymers

Kim J-S, Lee K.B., Lee W., Lee K.B., Lee W., Korea university, KR

We made a successful fabrication of nanopatterns with various UV curable materials, 311RM, Ethylene glycol dimethacrylate (EGDA), 4-hydroxy butyl acrylate (4-HBA) and pyrrole. AAO nanopatterns larger than 5 cm 5 cm were successfully replicated. It [...]

Dynamic rheology and microstructure of polymer/clay nanocomposites prepared under Sc-CO2 by melt compounding

Huang H.X., Zhao Y., South China University of Technology, CN

PP- and EVOH-clay nanocomposites were prepared using a twin screw extruder with the aid of supercritical carbon dioxide (Sc-CO2). The dynamic rheological properties were measured using a rheometer in the oscillatory mode. X-ray diffraction and [...]

Thermal Analysis of Polyimide-Cobalt Ferrite Nanocomposites

Mazuera D., Perales-Perez O., Singh S.P., Suarez O.M., University of Puerto Rico-Mayagüez, PR

Thermal stability and thermomechanical behavior of new polymer-based nanocomposite was investigated to assess the viability of the fabrication process. The nanocomposite film consisted of a polyimide (PI) matrix and nanodispersoids of a recently developed high-coercivity [...]

Polymer Network on Optical Fiber Core

Kazakov S.V., Pace University, US

The ultimate goal of the research is to fabricate a cylindrical polymer network (hydrogel) on the side-surface (not the distal end) of an optical fiber core and characterize spectroscopically its swelling/de-swelling ability in response to [...]

Modifying the kinetics of nanoscale diacetylene polymerization for time-temperature indicator applications

Castillo-Martínez E., Reibenspies J.H., Hall L.J., Kozlov M., Biewer M.C., Harrington A.C., Smith D.E., Huffman B., Prusik T., Grabiner F., Baughman R.H., University of Texas at Dallas, US

The present study describes the crystal structures of selected diacetylene molecules that can be useful for time-temperature indicator applications, and important methods for modifying polymerization kinetics for these applications. Different powder x-ray diffraction patterns, corresponding [...]

Effect of Sonication on Mechanical Properties of Polymers and Nanocomposites

Sha X., Beyle A., Ibeh C.C., Pittsburg State University, US

This study investigates the influence of sonication on the viscosity and mechanical properties of polymeric nanocomposites. Parameters of study are percentage level of catalyst, temperature level, neat polymer (vinyl ester), nanoparticle [nanoclay] infused polymer (nanocomposite) [...]