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You searched on: Author: Xiaohong Gu

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1. Depth profiling of degradation of multilayer photovoltaic backsheets after accelerated laboratory weathering: I. Raman imaging
Published: 10/6/2015
Authors: Chiao-Chi Lin, Peter J. Krommenhoek, Stephanie S Watson, Xiaohong Gu
Abstract: In this study, Raman imaging was used to depth profiling the chemical degradation of a commercial PPE (polyethylene terephthalate (PET)/PET/ethylene vinyl acetate (EVA)) backsheet films during exposure with UV irradiance of 170 W/m2 (300 nm to 400 nm ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917355

2. Cracking and delamination behaviors of photovoltaic backsheet after accelerated laboratory weathering
Published: 9/23/2015
Authors: Chiao-Chi Lin, Yadong Lyu, Donald Lee Hunston, Jae Hyun Kim, Kai-Tak Wan, Deborah L Stanley, Xiaohong Gu
Abstract: The channel crack and delamination phenomena that occurred during tensile tests were utilized to study surface cracking and delamination properties of a multilayered backsheet. A model sample of commercial PPE (polyethylene terephthalate (PET)/PE ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=919057

3. New Insights into Subsurface Imaging of Carbon Nanotubes in Polymer Composites via Scanning Electron Microscopy
Published: 2/4/2015
Authors: Minhua Zhao, Bin Ming, Jae-Woo Kim, Luke J Gibbons, Xiaohong Gu, Tinh Nguyen, Cheol Park, Peter T Lillehei, John S Villarrubia, Andras Vladar, James Alexander Liddle
Abstract: Despite many studies of subsurface imaging of carbon nanotube (CNT)-polymer composites via scanning electron microscopy (SEM), significant controversy exists concerning the imaging depth and contrast mechanisms. We studied CNT-polyimide composites an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917530

4. Chemical Depth Profiling of Photovoltaic Backsheets after Accelerated Laboratory Weathering
Published: 10/8/2014
Authors: Chiao-Chi Lin, Peter J. Krommenhoek, Stephanie S Watson, Xiaohong Gu
Abstract: Polymeric multilayer backsheets provide protection for the backside of photovoltaic (PV) module from the damage of moisture and ultraviolet (UV). Due to the nature of multilayer films, certain material property characterization of a backsheet could o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916475

5. A Quantitative Study of Nanoparticle Release from Nanocoatings Exposed to UV Radiation
Published: 4/7/2014
Authors: Li Piin Sung, Deborah L Stanley, Justin M Gorham, Savelas A Rabb, Xiaohong Gu, Lee Lijian Yu, Tinh Nguyen
Abstract: Nanoparticles are increasingly used in polymer coatings (i.e., nanocoatings) to improve multiple properties of traditional coatings such as mechanical, electrical, gas barrier, and UV resistance. These high performance nanocoatings are often used in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915497

6. 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
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912832

7. 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
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907239

8. 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

9. More Durable or Vulnerable? --- Effect of Nanoparticles on Long-Term Performance of Polymeric Nanocomposites during UV Exposure
Published: 7/2/2012
Authors: Xiaohong Gu, Minhua Zhao, Stephanie S Watson, Tinh Nguyen, Joannie W Chin, Jonathan W. Martin, Dongmei Zhe, Guodong Chen
Abstract: Polymers are widely used as exterior coatings in buildings, bridges, aircrafts, and automobiles for both protection and aesthetic purposes. However, the sustainability and service life of the applied coatings is limited due to the photodegradation of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909885

10. 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



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