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Author: tinh nguyen

Displaying records 91 to 100 of 104 records.
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91. Water at the Polymer/Substrate Interface and its Role in the Durability of Polymer/Glass Fiber Composites
Published: 8/1/1998
Authors: Tinh Nguyen, Walter Eric Byrd, K Aouadi, D Alsheh
Abstract: Fiber-reinforced polymer composites are increasingly used in offshore and civil engineering structures. In these applications, composite materials are often exposed to aqueous environments. This study investigated the role of the polymer/substrate in ...

92. Effect of Photodegradation on Wettability and Water Sorption Isotherm of an Amine-Cured Epoxy
Published: Date unknown
Authors: Cyril Clerici, Tinh Nguyen, Jonathan W. (Jonathan W.) Martin

93. Enhancing Sensitivity of Atomic Force Microscopy for Characterization ofSurface Chemical Heterogeneity
Published: Date unknown
Authors: Xiaohong Gu, Tinh Nguyen, Michael J Fasolka, Mark R VanLandingham, Jonathan W. (Jonathan W.) Martin
Abstract: Atomic force microscopy (AFM) has played an increasingly important role in characterizing surface morphology and surface properties of materials. However, the ability to identify and map the surface chemical heterogeneity has remained an unfulfilled ...

94. Finite Element Modeling of Hybrid Polymer Composite Beams
Published: Date unknown
Authors: Hai C. Tang, Tze J Chuang, Tinh Nguyen, Joannie W Chin, Hanchang F Wu
Abstract: Fiber-reinforced polymeric composites provide lightweight, high strength, and corrosive resistance to severe environmental exposures. These composites have been extensively used in aerospace and military application over the last three decades and ar ...

95. Hydrolysis-Controlled Transport of Water in Polymeric Coatings
Published: Date unknown
Authors: Sanghun Lee, Tinh Nguyen, Jonathan W. (Jonathan W.) Martin, E Byrd
Abstract: Thermoset acrylic melamine coatings are widely used for exterior structures. These materials are formulated by reacting an acrylic polyol with an alkylated melamine. Because the reactions are reversible, acrylic-melamine coatings tend to hydrolyze du ...

96. Interaction of Surface Free Energy and Humidity on AFM Tip-Sample Adhesion Measured by Chemical Force Microscopy
Published: Date unknown
Authors: Lei Chen, Tinh Nguyen, Xiaohong Gu, D Julthongpiput, Michael J Fasolka, Jonathan W. (Jonathan W.) Martin

97. Nanoparticle Release from Polymer Nanocomposites Used for Potable Water Infrastructure and Food Packaging: Current Progress & Beyond
Published: Date unknown
Authors: Andrew Whelton, T.V. Duncan , J.L. Koontz , Tinh Nguyen
Abstract: Nanoparticle (NP) enhanced polymers have the potential to revolutionize food packaging and water pipe performance, though release from these materials has gone relatively unstudied. A literature review was conducted to identify potential NP release p ...

98. Nanoscale Characterization of Coatings Surface Degradation With Tapping Mode Atomic Force Microscopy
Published: Date unknown
Authors: Tinh Nguyen, Xiaohong Gu, Mark R VanLandingham, R Ryntz, D Nguyen, Jonathan W. (Jonathan W.) Martin
Abstract: Surface characteristics of a polymer coating, such as gloss, and their changes with weathering depend strongly on surface topography and morphology. Therefore, data on early physical changes of coatings surface can provide valuable information for n ...

99. Polyurethane Composites Reinforced by Isocyanate-Functionalized Multi-Walled Carbon Nanotubes and Carbon Nanofibers
Published: Date unknown
Authors: Aline Granier, Tinh Nguyen, Alexander J. Shapiro, Jonathan W. (Jonathan W.) Martin
Abstract: The performance of polyurethane (PU) composites reinforced by isocyanate-functionalized multi-walled carbon nanotubes (NCO-fMWCNT) and isocyanate-functionalized carbon nanofibers (NCO-fCNF) has been investigated. NCO-fCNTs and NCO-fCNF were prepared ...

100. Study of Photodegradation of Epoxy Polymer by Using Slow Positron Annihilation Spectroscopy
Published: Date unknown
Authors: R Zhang, Xiaohong Gu, H Chen, J Zhang, Y Li, Tinh Nguyen, T C Sandreczki, Y C Jean
Abstract: Slow positron annihilation spectroscopy (SPAS) has been used to study the early stage of epoxy photodegradation. Spin-coated samples of a crosslinked epoxy were prepared by stoichiometrically mixing a diglycidyl ether of bisphenol A epoxy resin with ...

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