Preparation and Interfacial Properties of Glass Fiber/Polypropylene Microcomposites

Glass fiber/polypropylene (PP) microcomposites with different kind of binder coverage were prepared. Scanning electron microscopy—energy dispersive X-ray spectroscopy and atomic force microscopy were applied to analyze the morphology of the surface of the glass fiber. The relationship among the loss on ignition of the sizing, the morphology of the surface of the glass fiber and the interfacial shear stress (IFSS) of glass fiber/PP microcomposites were investigated. From the results of the aging experiments, it was possible to note that the temperature and the water are helpful to increase toughness between fiber and resin at lower temperature. When the temperature reaches the reaction temperature, hydrolysis starts and destroys the structure of coating, resulting in lower IFSS.