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Author: tinh nguyen

Displaying records 61 to 70 of 114 records.
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61. 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

62. 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

63. 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

64. 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

65. 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

66. 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

67. Nanocharacterization of Surface and Interface of Different Epoxy Networks
Published: 1/1/2002
Authors: Xiaohong Gu, D T Raghavan, D L Ho, Li Piin Sung, Mark R VanLandingham, Tinh Nguyen
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 di ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860415

68. Relating Laboratory and Outdoor Exposure of Coatings III. Effect of Relative Humidity on Moisture-Enhanced Photolysis of Acrylic-Melamine Coatings
Published: 1/1/2002
Authors: Tinh Nguyen, Jonathan W. Martin, E Byrd, E Embree
Abstract: The effects of relative humidity ranging from ~0% to 90 % on the moisture-enhanced photolysis (MEP) of a partially-methylated melamine acrylic polymer coating exposed to ultraviolet (UV) radiation at 50 oC have been investigated. The UV source was tw ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860320

69. Relating Laboratory and Outdoor Exposures of Acrylic Melamine Coatings: I. Cumulative Damage Model and Laboratory Exposure Apparatus
Published: 1/1/2002
Authors: Jonathan W. Martin, Tinh Nguyen, E Byrd, E Embree, B Dickens
Abstract: A cumulative damage model and a laboratory apparatus are described for linking field and laboratory photodegradation results and for predicting the service life of polymeric materials exposed in the laboratory and field. The apparatus was designed to ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860336

70. On the Use of the Atomic Force Microscope to Monitor Physical Degradation of Polymeric Coating Surfaces
Published: 12/1/2001
Authors: Mark R VanLandingham, Tinh Nguyen, Walter Eric Byrd, Jonathan W. Martin
Abstract: The atomic force microscope (AFM) was used to monitor changes in surface features of an acrylic melamine polymeric coating that was exposed to a variety of weathering conditions. A technique was developed such that, upon periodic removal from the we ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860309



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