Wood and Fiber Science (Society of Wood Science and Technology) · 1997 · 18 citations · 0 references
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Natural SciencesMaterials EngineeringMaterials SciencePolymer ChemistryPolymer EngineeringPolymer MaterialsComposite MaterialsPolymer CharacterizationPolymer InterfacesPolymer Phase BehaviorPolymer PhysicsPolymer StructureGlass TransitionGlass Transition ThermodynamicsInterphase StructurePolymer-solid InterfacesPolystyreneSurface CoverageSurface Coverage AnalysisWood Composites
The properties of the interphase in wood-polymer composites are important determinants of the properties of the final composite. This study used inverse gas chromatography (IGC) to measure interphasal properties of composites of polystyrene and two types of wood fiber fillers and an inorganic substrate (CW) with varying amounts of surface coverage of polystyrene. Glass transition temperatures, thermodynamic parameters, and the London component of the surface free energy (Y s L ) were determined. Values for Y s L became constant at higher coverages, allowing the thickness of the interphase to be estimated.