nanocomposites – Page 8 – TechConnect Briefs

Futurodontics – An Introduction

Borthakur B.J., Mahatma Gandhi Post Graduate Institute of Dental Sciences (Govt. of Puducherry Institution), India., IN

Summery: “The best way to predict the future is to create it”. Anonymous Nanofillers used in dental composites give superior nanomechanical & optical properties & reduction in polymerization shrinkage. To understand the nature’s biology is [...]

TiO2 Nanoparticles Mixed MEH-PPV Hybrid Absorbing Layer

Verma D., Dutta V., Indian Institute of Technology Delhi, IN

Conducting polymers/inorganic semiconductor nanoparticles composite are attracting attention due to their tunable optical and electrical properties. The properties of the hybrid layer processed from the blend solution depend on the degree of dispersion of nanoparticles [...]

Degradation and Nanoparticle Release of Epoxy/Nanosilica Composites Exposed to Solar UV Radiation

Pellegrin B., Nguyen T., Mermet L., Shapiro A., Gu X., Chin J., NIST, US

Nanoparticles are increasingly incorporated in polymers to enhance multifunctional properties. However, polymers are prone to undergo photodegradation under UV exposure, resulting in a liberation of nanoparticles from the polymer nanocomposites during their life cycle. The [...]

Network Aggregation of CNT at the Surface of Epoxy/MWCNT Composite Exposed to UV Radiation

Nguyen T., Pellegrin B., Mermet L., Shapiro A., Gu X., Chin J., NIST, US

CNTs are increasingly incorporated in polymers to enhance their mechanical and other properties. However, organic polymers are prone to degrade under UV radiation. Therefore, CNTs in a polymer nanocomposite will eventually be released into the [...]

Structure-property relationships in Pd/Polycarbonate based chemical sensors

Atre S.V., Valmikanathan O.P., Meka D.B., Prasad S., Oregon Nanoscience & Microtechnologies Institute, US

The effects of nanparticle surface chemistry, size, concentration and distribution on the properties of Pd/polycarbonate nanocomposites was investigated. Interesting trends in electrical conductivity and thermal stability of the nanomposites were identified. These trends were used [...]

Palladium/Polymer nanocomposite based Chemiresistive SO2 Sensor

Meka D., Onbattuvelli V., Atre S., Prasad S., Portland State University, US

Here we present a highly sensitive nanocomposite based Chemiresistive SO2 sensor. The main objective of this research is focused on developing a cost effective, integrable and disposable gas sensor which detects SO2 gas molecules in [...]

Novel Approach for Preparation of Organic-Inorganic Hybrid Nanocomposites

Kim I-J., Kwon K.H., Cheil Industries Inc., KR

Novel organic-inorganic hybrid nanocomposites were synthesized through emulsion grafting polymerization in the presence of silica particles coated with methacryloxy(propyl)trimethoxysilane. Well-defined polymer chains were grown from the nanoparticle surfaces to yield individual particles composed of a [...]

Structure Development in Flexible Polyurethane Foam Nanocomposites

Stanford J.L., Cookson P.A., Fithriyah N.H., Wilkinson A.N., University of Manchester, UK

This research involves in situ studies on the development of molecular and morphological structures during the processing of flexible, water-blown polyurethane foams containing layered silicate (montmorillonite) nanoparticles. Such materials possess enhanced mechanical properties combined with [...]

Novel Resorbable Drug-Carrying Nano-Scaffolds for Treating Bone Diseases at Targeted Sites

Liu H., Webster T.J., Brown University, US

Pharmaceutical agents are often required to stimulate new bone formation for the treatment of bone injuries or diseases (such as osteoporosis and osteosarcoma). However, there are several problems associated with current drug delivery methods. First, [...]

Effects of the Shape of Nanoparticles on the Crystallization Behavior of Poly(ethylene terephthalate) Nanocomposites in the Flow Fields

Kim B.C., Jang K.H., Hahm W.G., Kikutani T., Lee J., Hanyang University, KR

This paper investigated the effects of the shape of nanoparticles on the crystallization behavior of high molecular weight poly(ethylene terephthalate) (PET ; inherent viscosity of 0.98 g/dl) in the shear and elongational flow fields. Two [...]