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Author: joannie chin
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Displaying records 11 to 20 of 53 records.
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11. 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

12. 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

13. Water based Polyurethane Graphene Oxide Nanocomposites
Published: 3/3/2010
Authors: Coralie Bernard, Tinh Nguyen, Bastien T. Pellegrin, Mat Celina, Alexander J. Shapiro, Deborah L Stanley, Kar Tean Tan, Sungjin Park, R. S. Ruoff, Joannie W Chin
Abstract: Graphene oxides are potentially a new class of nanomaterial to enhance multifunctional properties of polymers because of their remarkable thermal conductivity, mechanical strength, and more importantly, low cost. The graphene oxides, produced by exfo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904994

14. Effects of Accelerated Ultraviolet (UV) Weathering on Firefighter Protective Clothing Outer Shell Fabrics
Series: Technical Note (NIST TN)
Report Number: 1657
Published: 2/25/2010
Authors: Rick D Davis, Joannie W Chin, Chiao-Chi Lin
Abstract: The Outer Shell of the jacket and pants of the firefighter s protective clothing is constructed of a fabric that is commonly a blend of polyaramid, polybenzimidazole, and/or poly(melamine-formaldehyde) fibers. The Outer Shell contributes to the ther ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904561

15. Development of Soft Armor Conditioning Protocols for NIJ 0101.06: Analytical Results
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7627
Published: 9/24/2009
Authors: Amanda Lattam Forster, Kirk D Rice, Michael A Riley, Guillaume Messin, Sylvain H. Petit, Cyril Clerici, Gale Antrus Holmes, Joannie W Chin
Abstract: This publication details the four major phases of analytical development work, coupled with several additional side studies, undertaken by the Office of Law Enforcement Standards in writing the Flexible Armor Conditioning Protocol in NIJ 0101.06. Th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902601

16. Studying Long-term Performance of a Nano-ZnO filled Waterborne Polyurethane Coating using Spectroscopies and Microscopies
Published: 9/9/2009
Authors: Xiaohong Gu, Dongmei Zhe, Stephanie S Watson, Guodong Chen, Minhua Zhao, Paul E Stutzman, Deborah L Stanley, Tinh Nguyen, Joannie W Chin, Jonathan W. (Jonathan W.) Martin
Abstract: Although inorganic UV absorbers such as zinc oxide (ZnO) and cerium oxide (CeO2) exhibit numerous advantages compared to organic UV absorbers, the mechanisms of how these nanoparticles affect the long-term performance of polymeric coatings are less t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903215

17. Degradation and Nanofiller Release of Polymer Nanocomposites Exposed to UV
Published: 7/15/2009
Authors: Tinh Nguyen, Bastien T. Pellegrin, Alexander J. Shapiro, Xiaohong Gu, Joannie W Chin
Abstract: Nanofillers are increasingly used to enhance multifunctional properties of polymers. However, recent research suggests that nanomaterials may have a negative impact on the environmental health and safety. Since polymers are susceptible to photodegrad ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902990

18. Long-Term Performance of Nano-Filled Polymeric Materials: Effect of ZnO Nanoparticles on Photodegradation of a Waterborne Polyurethane Coating
Published: 7/8/2009
Authors: Xiaohong Gu, Dongmei Zhe, Minhua Zhao, Guodong Chen, Nhieu Ly, Paul E Stutzman, Li Piin Sung, Tinh Nguyen, Joannie W Chin
Abstract: Polymers are widely used as exterior coatings in buildings, bridges, aircrafts and automobiles for both protection and aesthetic purposes. However, the service life of the applied coatings is limited due to the photodegradation of polymers induced by ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902293

19. Characterization of Ambient Temperature Cure Epoxies Used in Adhesive Anchor Applications
Published: 5/20/2009
Authors: Joannie W Chin, Aaron M Forster, Cyril Clerici, Donald Lee Hunston
Abstract: Thermo-viscoelastic properties and creep response of two commercial, ambient temperature cure epoxy structural adhesives were analyzed and compared. The adhesives were formulated by the same manufacturer and appeared to have the same base chemistry; ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901504

20. Network Aggregation of CNTs at the Surface of Epoxy/MWCNT Composite Exposed to UV Radiation
Published: 3/18/2009
Authors: Tinh Nguyen, Bastien T. Pellegrin, Alexander J. Shapiro, Xiaohong Gu, Joannie W Chin
Abstract: Carbon nanotubes (CNTs) are increasingly incorporated in polymers to enhance their mechanical and electrical properties. However, organic polymers are prone to degrade when exposed to UV radiation. Therefore, CNTs in a polymer nanocomposite could ev ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902039



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