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1. Surface Chemical Transformations of UV irradiated Silica-Epoxy Nanocomposites
Published: 5/15/2013
Authors: Justin M Gorham, Tinh Nguyen, Deborah L Stanley, Coralie Bernard, Richard D Holbrook
Abstract: Silica nanoparticles (SiNPs) incorporated into a polymeric matrix, or silica nanocomposites (SiNCs), are used in a wide variety of commercially available products in numerous natural and artificial environments. Environmental factors, such as light, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913534

2. Characterization of Surface Accumulation and Release of Nanosilica During Irradiation of Polymer Nanocomposites with Ultraviolet Light
Published: 8/12/2012
Authors: Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Savelas A Rabb, Paul E Stutzman, Justin M Gorham, Xiaohong Gu, Lee Lijian Yu, Joannie W Chin
Abstract: Nanofillers are increasingly used for enhancing multiple properties of polymeric materials in many applications. However, polymers are susceptible to photodegradation by solar ultraviolet (UV) radiation Therefore, nanofillers in a polymer nanocompos ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909878

3. Photo-induced Surface Transformation of Silica Nanocomposites
Published: 6/22/2012
Authors: Justin M Gorham, Tinh Nguyen, Coralie Bernard, Deborah L Stanley, Richard D Holbrook
Abstract: The physicochemical, UV-induced surface modifications to silica nanoparticle (SiNP) - epoxy composites have been investigated. The silica nanocomposites (SiNCs) were prepared using a two-part epoxy system with 10 % mass fraction of SiNPs and expose ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910637

4. Potential release pathways, environmental fate, and ecological risks of carbon nanotubes
Published: 10/11/2011
Authors: Elijah J Petersen, Andrew Whelton, Liwen Zhang, Qingguo Huang, Nasir M. Uddin, Nikolai Mattison, Denis O'Carroll, Theodore Henry, Tinh Nguyen, Richard D Holbrook, Kai Chen
Abstract: Carbon nanotubes are currently being used in a number of consumer products, and exponentially higher production masses and a broader range of applications are expected in future years. However, the data on the environmental release pathways, environ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908157

5. Fate of nanoparticles during life cycle of polymer nanocomposites
Published: 7/6/2011
Authors: Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Xiaohong Gu, Justin M Gorham, Paul E Stutzman, Deborah L Stanley, Walter Eric Byrd, John W Hettenhouser, Joannie W Chin
Abstract: Nanoparticles are increasingly used in consumer and structural polymeric products to enhance a variety of properties. Under the influences of environmental factors (e.g., ultraviolet, moisture, temperature) and mechanical actions (e.g., scratching, v ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907488

6. Effects of ozone treatment on fungal growth, chemical components and surface morphological characteristics of wood flooring materials
Published: 2/16/2011
Authors: Chi Phuong Hoang, Tinh Nguyen, Deborah L Stanley, Andrew Keith Persily
Abstract: The effects of ozone treatment and extraction on fungal activities of bamboo and red-oak flooring materials have been investigated. One set of wood samples was extracted with cyclohexane and ethanol for 48 hours to remove extractable compounds. Anot ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907823

7. Degradation and Nanoparticle Release of Nanocomposite Coatings Exposed to UV Radiation
Published: 6/2/2010
Authors: Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Xiaohong Gu, Justin M Gorham, Paul E Stutzman, Alexander J. Shapiro, Walter Eric Byrd, Joannie W Chin
Abstract: The release of nanoparticles from nanocomposite coatings during their life cycle potentially has negative effects to the environments and presents a roadblock to their uses. The degradation and nanoparticle release of amine-cured epoxy coatings conta ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905834

8. Direct Evidence of Nanoparticle Release from Epoxy Nanocomposites Exposed to UV Radiation
Published: 4/14/2010
Authors: Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Xiaohong Gu, Justin M Gorham, Paul E Stutzman, Alexander J. Shapiro, Walter Eric Byrd, Joannie W Chin
Abstract: This study assessed the fate of SiO2 nanoparticles (nanoSiO2) in epoxy/nanoSiO2 composites exposed to ultraviolet (UV) radiation. The matrix was a stoichiometric mixture of adiglycidyl ether of bisphenol A epoxy and an aliphatic tri-amine. Films of u ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905527

9. NIST Sustainable Infrastructure Material Program
Published: 3/17/2010
Authors: Jonathan W. (Jonathan W.) Martin, Xiaohong Gu, Tinh Nguyen, Joannie W Chin
Abstract: NIST has initiated a research program for improving the quality of the data input for making economic sustainability assessments of polymeric infrastructure materials through improvements in the measurement science for this data. Sustainability asses ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905331

10. Effects of Surface Free Energy and Relative Humidity on Friction and Image Contrast Measured with Lateral Force Microscopy
Published: 3/3/2010
Authors: Tinh Nguyen, Lijiang Chen, Xiaohong Gu
Abstract: Effects of sample surface free energy (s) and relative humidity (RH) of the tip-sample environment on image contrast and friction characteristics measured with lateral force microscopy (LFM) have been investigated. Samples having a wide range ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904993