Shapiro A. – TechConnect Briefs

Direct Evidence of Nanoparticle Release from Epoxy Nanocomposites Exposed to 295 nm-400 nm UV Radiation

Nguyen T., Pellegrin B., Stutzman P., Shapiro A., Byrd E., Gu X., Chin J., NIST, US

Nanoparticles are increasingly used for enhancing multiple properties of polymers in many industries including construction, automobile, and aerospace. However, recent research suggests that nanoparticles might have negative effects on the environments and health safety. Since [...]

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 [...]