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Displaying records 11 to 20 of 60 records.
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11. 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

12. Role of Nanoparticles in Life Cycle of Nanocomposites
Published: 6/15/2010
Authors: Xiaohong Gu, Guodong Chen, Minhua Zhao, Stephanie S Watson, Paul E Stutzman, Tinh Nguyen, Joannie W Chin, Jonathan W. Martin
Abstract: The objective of this study is to investigate the role of ZnO nanoparticles in the life cycle of a waterborne polyurethane (PU) nanocomposite during UV exposure. The effects of loadings and sizes of ZnO nanoparticles on photodegradation of ZnO/PU fil ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905542

13. Ultraviolet Weathering of Firefighter Protective Clothing
Published: 6/4/2010
Authors: Rick D Davis, Joannie W Chin, Chiao-Chi Lin, Sylvain H. Petit
Abstract: Exposure to simulated ultraviolet sunlight at 50 C and 50 % relative humidity caused a significant deterioration in the mechanical performance of polyaramid and polyaramid/polybenzimidazole based Outer Shell fabrics used in firefighter jacket ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905047

14. 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

15. Critical Role of Particle/Polymer Interface in Long-term Performance of Nanofilled Polymeric Coatings
Published: 5/17/2010
Authors: Xiaohong Gu, Guodong Chen, Minhua Zhao, Stephanie S Watson, Tinh Nguyen, Joannie W Chin, Jonathan W. Martin
Abstract: In this study, the role of the nanoparticle/polymer interface in the long-term UV weathering performance of a nano-ZnO filled polyurethane (PU) coating system was investigated. The effects of the parameters that can influence the particle/polymer int ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905211

16. Accelerated weathering of polyaramid and polybenzimidazole firefighter protective clothing fabrics
Published: 5/10/2010
Authors: Rick D Davis, Joannie W Chin, Chiao-Chi Lin, Sylvain H. Petit
Abstract: Exposure to simulated ultraviolet sunlight at 50 C and 50% relative humidity caused a significant deterioration in the mechanical performance of polyaramid and polyaramid/polybenzimidazole based outer shell fabrics used in firefighter jacket and p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906321

17. Hydrolytic stability of polybenzobisoxazole and polyterephthalamide body armor.
Published: 5/6/2010
Authors: Amanda Lattam Forster, Guillaume Messin, Kirk D Rice, Pierre Pintus, Joannie W Chin, Sylvain H. Petit
Abstract: Previous work conducted at the National Institute of Standards and Technology (NIST) to investigate the field failures of soft body armor containing the material poly(p-phenylene-2,6-benzobisoxazole), or PBO, revealed that this material was susceptib ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904063

18. 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

19. NIST Sustainable Infrastructure Material Program
Published: 3/17/2010
Authors: 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

20. 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 T. 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



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