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Article
A macroscopically nondestructive method for characterizing surface mechanical properties of polymeric coatings under accelerated weathering
The surface of coatings and plastics is the first target in any degradation process initiated by ultraviolet (UV) radiation or mechanical stress (via scratch and abrasion). Surface damage can lead to changes i...
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Article
Kinetics of photodegradation and nanoparticle surface accumulation of a nanosilica/epoxy coating exposed to UV light
Temperature effect on the kinetics of photodegradation and surface accumulation of nanoparticles in an epoxy nanocoating exposed to ultraviolet light (UV) was investigated. A model epoxy coating containing 5% ...
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Article
Surface degradation and nanoparticle release of a commercial nanosilica/polyurethane coating under UV exposure
Many coating properties such as mechanical, electrical, and ultraviolet (UV) resistance are greatly enhanced by the addition of nanoparticles, which can potentially increase the use of nanocoatings for many ou...
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Article
A quantitative study of nanoparticle release from nanocoatings exposed to UV radiation
Nanoparticles are increasingly used in polymer coatings (i.e., nanocoatings) to improve multiple properties including the mechanical, electrical, gas barrier, and ultraviolet (UV) resistance of traditional coa...
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Article
Scratch Damage and Recovery of Controlled Epoxy Networks
Surface scratches in a series of controlled epoxy networks (CEN) were measured using a combination of instrumented indentation protocols and laser scanning confocal microscopy. Identical epoxy chemistry with i...
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Article
Multiscale physical characterization of an outdoor-exposed polymeric coating system
Surface topography and gloss are two related properties affecting the appearance of a polymeric coating system. Upon exposure to ultraviolet (UV) radiation, the surface topography of a coating becomes more pro...
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Article
Interfacial Characterization of Multiple Layer Coatings on Thermoplastic Olefins (TPO)
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...
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Article
Relationship between chemical degradation and thickness loss of an amine-cured epoxy coating exposed to different UV environments
The relationship between chemical degradation and thickness loss of an unpigmented, non UV-stabilized, crosslinked amine-cured epoxy coating exposed to three UV conditions was investigated. Spin-coated samples...
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Article
Microstructure and morphology of amine-cured epoxy coatings before and after outdoor exposures—An AFM study
Atomic force microscopy (AFM) has been used to study the morphology and microstructure of an amine-cured epoxy before and after outdoor exposure. Measurements were made from samples prepared in an essentially CO2
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Article
Phase separation kinetics and morphology in a polymer blend with diblock copolymer additive
The phase diagram for a low molecular weight blend of deuterated polystyrene (PSD) and polybutadiene (PB) was determined by temperature jump light scattering (TJLS) measurements and phase contrast optical micr...
