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41. 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 ...

42. Protective performance of environmentally stressed fabrics containing melamine fiber blends
Published: 1/12/2013
Authors: Shonali Nazare, Shaun M. Flynn, Rick D Davis, Joannie W Chin
Abstract: In this study, environmentally stressed OS fabrics containing melamine fiber blends were evaluated for thermal and mechanical properties that are critical to the protective performance of firefighter turnout gear. Environmental stress factors that a ...

43. Reciprocity Law Experiments in Polymeric Photodegradation: A Critical Review
Published: 9/1/2003
Authors: Jonathan W. Martin, Joannie W Chin, Tinh Nguyen
Abstract: celerating the photodegradation of polymeric materials is of great interest in weathering research. One way of achieving acceleration is by exposing polymeric materials to a high radiant flux, but questions have arisen as to whether high radiant fl ...

44. Report of the Ultraviolet (UV) Subpanel
Published: 8/1/2001
Author: Joannie W Chin
Abstract: This manuscript is one of 7 sections in a report on the environmental durability of fiber-reinforced composite materials to be published and distributed by the Civil Engineering Research Foundation.

45. Roadmap for Developing Measurement Science for Predicting the Service Life of Polymers Used in Photovoltaic (PV) Systems
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7971
Published: 2/24/2014
Authors: Xiaohong Gu, Joannie W Chin

46. Role of Interfacial Water in the Adhesion Loss of Polymer/Substrate Systems and Composites
Published: 6/21/2007
Authors: Tinh Nguyen, Joannie W Chin, E Byrd, David Alshed, Cyril Clerici, Jonathan W. Martin
Abstract: Water at the polymer/substrate interface in coatings, adhesives, and fiber-reinforced polymer composites is often the main cause of adhesion loss in these systems. Using experimental data measured in this study, we critically assess the role of inter ...

47. 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 ...

48. Role of Particle/Polymer Interphase in Long-Term Performance of Nanofilled Polymeric Coatings
Published: 9/3/2012
Authors: Xiaohong Gu, Guodong Chen, Minhua Zhao, Stephanie S Watson, Tinh Nguyen, Joannie W Chin, Jonathan W. Martin

49. Sorption and Diffusion of Water, Salt Water and Concrete Pore Solution in Composite Matrices
Published: 8/1/1998
Authors: Joannie W Chin, Tinh Nguyen, K Aouadi
Abstract: In recent years, the use of fiber-reinforced polymer composites in civil infrastructure has been promoted as a solution to the deterioration of bridges, buildings, and other structures composed of traditional materials, such as steel, concrete, and ...

50. 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. 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 ...

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