Dynamic mechanical analysis (DMA) was used to characterize biomedical composites consisting of synthetic hydroxyapatite (HA) particulate reinforced polyethylene (PE). The effects of the HA volume fraction, temperature and HA particle on the storage modulus (E(I)) and damping (tan delta) were investigated. Increasing HA volume fractions increased E(I) and decreased tan delta. E(I) was found to b...

A novel heat-sealing performance is achieved by polyethylene (PE) nanocomposites reinforced by ethylene vinyl acetate (EVA) and montmorillonite (MMT). Appropriate nanocomposite design leads to hermetic seals with a general peelable/easy-open character across the broadest possible sealing temperature range. Observations of the fracture seal surfaces by infrared spectroscopy and electron microsco...

In this article, we present a 48-year-old female case who had an unsuccessful previous forte ceramic-on-ceramic total hip arthroplasty for early coxarthrosis secondary to acetabular dysplasia. She had fracture and protrusion of the ceramic liner through the titanium acetabular shell without any apparent trauma, possibly resulting from the mistake during the implantation of the ceramic liner int...

The adhesion between mineral surfaces and organic polymers is important in many industrial products. Examples range from paints to filled plastics and fiber reinforced composites. Talc, for example, is well known to be an important reinforcing filler for polyolefins such as polypropylene (PP) and polyethylene (PE) [1]. Usually, for this application, there is no need to treat the mineral surface...