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You searched on: Author: li piin sung

Displaying records 41 to 50 of 75 records.
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41. Use of Laser Scanning Confocal Microscopy for Characterizing Changes in Film Thickness and Local Surface Morphology of UV Exposed Polymer Coatings.
Published: 12/1/2004
Authors: Li Piin Sung, J Jasmin, X Gu, Tinh Nguyen, Jonathan W. Martin

42. Metrology for Characterizing Sratch Resistance of Polymer Coatings.
Published: 10/27/2004
Authors: Li Piin Sung, P L Drzal, M R Vanlandingham, T Y Wu

43. Relating Gloss Loss to Topographical Features of a PVDF Coating.
Published: 10/27/2004
Authors: J Faucheu, Li Piin Sung, Jonathan W. Martin, K A Wood

44. Metrology for Characterizing Scratch Resistance of Polymer Coatings
Published: 10/6/2004
Authors: Li Piin Sung, P L Drzal, Mark R VanLandingham, T-Y Wu

45. Relating Gloss Loss to Topographical Features of a PVDF Coating
Published: 10/6/2004
Authors: J Faucheu, Li Piin Sung, K Wood, Jonathan W. Martin
Abstract: Semi-gloss commercial poly(vinylidene fluoride) (PVDF) coatings typically have 60o gloss values between 20 and 50. Gloss is affected by PVDF crystallite structures and by the pigmentation. In this paper, we have demonstrated that for some pigmented ...

46. Measurement Approaches to Develop a Fundamental Understanding of Scratch and Mar Resistance
Published: 10/1/2004
Authors: Mark R VanLandingham, N-K Chang, T-Y Wu, Li Piin Sung, V D Jardret, S-H Chang
Abstract: Instrumented indentation and confocal microscopy were used to characterize the surface mechanical response of polymeric materials. Viscoelastic behavior was measured using instrumented indentation. A model based on contact between a rigid probe and ...

Published: 10/1/2004
Authors: Li Piin Sung, J Jasmin, Xiaohong Gu, Tinh Nguyen, Jonathan W. Martin
Abstract: Due to its non-destructive properties, laser scanning confocal microscopy (LSCM) has become a powerful tool for monitoring physical changes in polymeric coatings following ultraviolet (UV) radiation exposure. Physical changes caused by UV exposure i ...

48. Effect of Microstructure of Fluorinated Acrylic Coatings on UV Degradation Testing
Published: 9/1/2004
Authors: Li Piin Sung, Silvia Vicini, D L Ho, L Hedli, C Olmstead, Kurt Wood
Abstract: This paper presents research results on the relationships between the microstructure and the performance/weatherability of fluoropolymer/acrylic coatings. We studied fluoropolymer/acrylic blends of identical composition, prepared as films using three ...

49. Advanced Techniques for Nanocharacterization of Polymeric Coating Surfaces
Published: 7/1/2004
Authors: Xiaohong Gu, Tinh Nguyen, Li Piin Sung, Mark R VanLandingham, Y C Jean, Jonathan W. Martin
Abstract: The applications of AFM and nanoindentation on study of surface property of polymeric coatings have been demonstrated. The surface microstructure of several coatings was characterized using tapping mode AFM, and the morphological change of coatings d ...

50. Finite-Size Effects on Surface Segregation in Polymer Blend Films Above and Below the Critical Point of Phase Separation
Published: 3/1/2004
Authors: H Grull, Li Piin Sung, Alamgir Karim, Jack F Douglas, Sushil K. Satija, Makoto Hayashi, H Jinnai, TT Hashimoto, Charles C. Dr. Han
Abstract: We investigate the influence of temperature and confinement on surface segregation in thin films of deuterated polybutadiene and polyisoprene near the critical point for phase separation. Neutron reflectivity measurements show that polyisoprene enri ...

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