Crystallization of polymeric materials is a solidification process in strong interaction with heat conduction. Both of the basic mechanisms involved in the solidification from a melt, namely the nucleation and growth of crystals, are strongly influenced by the temperature and its variation. Vice versa, the latent heat is rather large for polymeric materials, so that it causes a considerable cha...

The addition of less than 1 vol%, 33 nm zinc oxide nanoparticles into a polyurethane matrix resulted in approximately 40% decrease in the Young’s modulus, 80% decrease in strain at fracture, and 50% decrease in the storage modulus, but at the same time resulted in an w11 8C increase in the glass transition temperature of the polymer. These results appear to contradict the general principle obse...

In recent years, the improvement of properties of natural fibre reinforced laminates over the pure polymeric matrix has been thoroughly investigated with the aim of providing a possible replacement of E-glass fibre reinforced composites for some large-volume applications. In the present study, the properties of a jute/polyester laminate are compared with those yielded by two E-glass fibre woven...

A novel high-strength nano-adhesive is demonstrated for fabricating nano- and microfluidic devices. While the traditional plasma sealing methods are specific for sealing glass to poly(dimethylsiloxane) (PDMS), the new method is compatible with a wide variety of polymeric and inorganic materials, including flexible substrates. Additionally, the traditional method requires that sealing occur with...

Polymeric separators have been developed since 2010 to produce acoustophoretic separation of particles or cells in suspension with high efficiency. They rely on three-dimensional (3D) resonances their whole structure actuated by ultrasounds. In this paper, a numerical 3D analysis is presented and validated as the only tool for optimization these polymeric chips perform efficient applications. c...

The objective of the present investigations was to assess use thermodynamic phase diagrams and Gibbs free energy mixing, ?Gmix, for screening polymeric carriers by determining ideal drug-loading an amorphous solid dispersion formulation optimum processing temperature hot-melt extrusion a non-glass-forming drug. Mefenamic acid (MFA) used as model drug four chemically distinct polymers with close...

This study investigates the physical and mechanical properties of short Entada mannii- glass fiber polypropylene hybrid composites. The polymeric composite was produced by combining different ratios mannii (EMF)/glass (GF) using compression molding technique. tensile properties, compressive strength, impact strength hardness were evaluated while fracture surface morphology examined scanning ele...

Polymeric lenses have been increasingly used to replace glass due advantages of light weight, high refractive index, and ease making into complicated shapes. However, a severe constraint their wider application lies with intrinsic weakness in hardness that can lead mechanical damages by abrasion. During service, fogging remains another unsolved challenge optical lenses, which may significantly ...