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You searched on: Author: li piin sung

Displaying records 21 to 30 of 75 records.
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21. 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 ...

22. Characterizing the Dynamic Behavior of Nano-TiO2 Agglomerates in Suspensions by Photocorrelation Spectroscopy
Published: 4/22/2009
Authors: I-Hsiang Tseng, Stephanie S Watson, Li Piin Sung
Abstract: Metal oxide nanoparticles are small but easily form agglomerates in suspension, depending on the strength of particle-particle and particle-media interactions. To understand the agglomeration behavior of nanoparticles in media and relate to it to pro ...

23. Combinatorial characterization of photopolymerizable composites: Effect of filler type and content on properties
Published: 3/22/2009
Authors: Li Piin Sung, Aaron M Forster, Haiqing Hu, Nancy J Lin, Sheng Lin-Gibson
Abstract: Multi-component formulations coupled with complex processing conditions govern the final properties of photopolymerizable dental composites. In this study, a single test substrate was fabricated to support multiple formulations with a gradient in deg ...

24. Effects of filler type and content on mechanical properties of photopolymerizable composites determined using a two-dimensional gradient platform
Published: 2/5/2009
Authors: Sheng Lin-Gibson, Li Piin Sung, Haiqing Hu, Aaron M Forster, Nancy J Lin
Abstract: Photopolymerizable dental composites have complex processing conditions and multi-component formulations that affect the final properties. Combinatorial screening is a useful approach for evaluating multiple properties of the composites. A single te ...

25. Instrumented Indentation for Quantifying Quasi-static and Transient Properties of Polymeric Coatings
Published: 11/26/2008
Authors: Aaron M Forster, Peter Krommenhoek, Li Piin Sung, Chris A Michaels, Kurt Wood
Abstract: Instrumented indentation was used to investigate the mechanical properties of coatings for automotive and architectural applications. First, the mechanical properties in the cross-section of a multi-layer acrylic-melamine automotive coating subjected ...

26. Comparing Analytical Methods for Detecting and Characterizing Nanoparticles in Formulated Products
Published: 10/1/2008
Authors: Katherine M. Tyner, Anna M. Wokovich, William H. Doub, Lucinda F. Buhse, Li Piin Sung, Stephanie S Watson, Nakissa Sadrieh
Abstract: To understand the extent of consumer exposure to nanomaterials as well as how nanomaterials impact consumer goods, it is necessary to detect and characterize nanomaterials in unmodified final products. Although there are pathways to characterize nano ...

27. Modulus and Chemical Mapping of Multi-layer Coatings
Published: 10/1/2008
Authors: Aaron M Forster, Chris A Michaels, Li Piin Sung, Justin Lucas
Abstract: Thermoplastic olefins (TPO) are polymeric materials utilized for interior and exterior automotive parts. These materials are often painted to enhance appearance and protect the soft TPO substrate. TPO materials posses a low surface energy due to th ...

28. Effect of Annealing Condition and Composition on the Scratch Behavior of Fluorinated Coatings
Published: 9/24/2008
Authors: Li Piin Sung, Aaron M Forster, K Wood
Abstract: Fluorinated and acrylic coatings are commonly used as binders for exterior coatings because of their excellent resistance to UV radiation and many corrosive chemical agents. It is known that the fluorinated component of the coating usually has a lowe ...

29. Effect of Composition and Processing Condition on Microstructural Properties and Durability of Fluoropolymer/Acrylic Blends
Published: 9/24/2008
Authors: Li Piin Sung, Xiaohong Gu, Derek L. Ho, Forrest Andrew Landis, D Nguyen
Abstract: Fluoropolymer-based coatings have been greatly used as binders for exterior coatings because of their excellent resistance to UV radiation as well as to many corrosive chemical agents. It is also known that the fluorinated component usually has a low ...

30. Interfacial Characterization of Multiple Layer Coatings on Thermoplastic Olefins (TPO)
Published: 5/30/2008
Authors: Aaron M Forster, Chris A Michaels, Justin Lucas, Li Piin Sung
Abstract: Thermoplastic olefins (TPO) have made significant inroads as polymeric materials for interior and exterior automotive parts. Spray applied chlorinated polyolefins (CPO) are often used to improve paint adhesion to the low surface energy TPO substrate ...

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  • SP 250-XX: Calibration Services
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