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You searched on: Author: tinh nguyen

Displaying records 61 to 70 of 118 records.
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61. Enhancing Sensitivity of Atomic Force Microscopy for Characterizing Surface Chemical Heterogeneity
Published: 2/26/2003
Authors: Xiaohong Gu, Mark R VanLandingham, Michael J Fasolka, Jonathan W. Martin, J Y Jean, Tinh Nguyen
Abstract: In this study, a well-controlled humidity system is used to enhance the sensitivity of A-FM in characterizing surface chemical heterogeneity. The relative humidity of the tip-sample environment is controlled using a humidity generator and a novel sm ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860482

62. Nanoscale Chemical Imaging of Polymeric Materials With Atomic Force Microscopy
Published: 2/26/2003
Authors: Xiaohong Gu, Tinh Nguyen, Michael J Fasolka, D Julthongpiput, Lei NMN Chen, Mark R VanLandingham, Y C Jean, Jonathan W. Martin
Abstract: Nanoscale spatial chemical information is essential to developing a molecular-level understanding of a variety of phenomena occurring at surfaces and interfaces, including adhesion, friction, and surface reactivity. Therefore, the ability to probe an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860547

63. Enhancing Sensitivity of Atomic Force Microscopy for Characterizing Surface Chemical Heterogeneity
Published: 1/1/2003
Authors: Xiaohong Gu, Mark R VanLandingham, Michael J Fasolka, Jonathan W. Martin, J Y Jean, Tinh Nguyen
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853857

64. Surface and Interface Properties of PVDF/Acrylic Copolymer Blends
Published: 11/1/2002
Authors: Xiaohong Gu, Tinh Nguyen, Mark R VanLandingham, D Nguyen
Abstract: Poly(vinylidene fluoride) (PVDF) is commonly blended with amorphous polymers to improve its optical property. The surface and interface properties of PVDF blended with different amounts of poly(methyl methacrylate) and poly(ethyl acrylate) copolymer ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860393

65. Automation in Building Design With Spatial Information.
Published: 9/23/2002
Authors: Tinh Nguyen, A A Oloufa
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916756

66. Relating Laboratory and Outdoor Exposure of Coatings: II. Effects of Relative Humidity on Photodegradation and the Apparent Quantum Yield of Acrylic-Melamine Coatings
Published: 9/1/2002
Authors: Tinh Nguyen, Jonathan W. Martin, E Byrd, E Embree
Abstract: The effects of relative humidity (RH) from <<1% to 90% on the photodegradation and quantum efficiency for a partially-methylated melamine acrylic coating exposed to UV/50 oC condition are reported. This investigation is part of a comprehensive study ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860334

67. Application of a Reliability-Based Methodology for Predicting the Outdoor Service Life of Polymers
Published: 5/1/2002
Authors: Joannie W Chin, Jonathan W. Martin, E Byrd, Tinh Nguyen, N Embree, J D Tate
Abstract: Organic polymers are a commercially important class of materials that are being increasingly used in outdoor applications such as paints, coatings, sealants, siding and roofing membranes, to name just a few. One of the most damaging elements in the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860386

68. Quantum Efficiency of Spectral UV on Polyurethanes
Published: 3/1/2002
Authors: Tinh Nguyen, Jonathan W. Martin, E Byrd, E Embree
Abstract: Polyurethanes (PU) are used extensively as exterior building materials. However, PU undergoes degration during outdoor exposure. The quantum efficiency of spectral UV on photodegration of an acrylic-urethane coating has been investigated. Samples ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860400

69. Surface and Interface Microstructures of Coatings Systems and Their Implication on Service Life
Published: 3/1/2002
Authors: Tinh Nguyen, Xiaohong Gu, Mark R VanLandingham, D Nguyen, M Giraud
Abstract: The surface and interface properties have a strong influence on the adhesion and service life of polymer coatings applied to plastics and metals. However, both the surface and interface chemical composition and microstructure of coated materials are ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860401

70. Effects of Crosslink Density on Surface and Interface Properties of Amine-Cured Epoxy
Published: 2/1/2002
Authors: Xiaohong Gu, Tinh Nguyen, Mark R VanLandingham, D T Raghavan
Abstract: The effect of network changes on the surface and interface properties of amine-cured epoxy has been investigated. Samples of different crosslinked epoxies are prepared by mixing stoichiometrically pure diglycidyl ether of bisphenol A (n=0.03) with d ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860392



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