Polystyrene grafted halloysite microspheres (MS@PMHNTs) were prepared by suspension polymerization method, and the MS@PMHNTs reinforced polymethyl methacrylate (PMMA) composite fibers in situ microfibrillation via a twin-screw extruder. The structure mechanical properties of MS@PMHNTs/PMMA characterized scanning electron microscopy, transmission Fourier transform infrared spectroscopy , thermog...

Abstract This work aims to experimentally investigate the influence of screw elements on dispersion Cloisite-15A in vinyl ester based design experiments using MINITAB-V16 software. Experiments were designed considering two main factors such as loading (1, 2, 3, and 4 wt%) type with a varying number kneading (type 1 55 mm, 2 90 elements). The procedure was carried out by combination both ultraso...

Straw utilization is a key issue related to agricultural production and air pollution control. In this study, novel extrusion process was proposed improve the physical mechanical properties of straw-reinforced linear low-density polyethylene (LLDPE) composite. Instead crushing straw mixing it with plastic matrix, new method mixes matrix in its original form. The intact long rice straws were par...

Flours from African breadfruit, corn and defatted soybean were thoroughly mixed in a Hobart_-mixer at three variable, with the following combinations 40:5:55, 55:5:40, 70:5:25, 85:5:10 and 100:0:0% for African breadfruit, corn and soybean, respectively. These combinations were hydrated to moisture contents of 15, 18, 21, 24, and 27% and extruded at screw speed of 100, 120, 140, 160 and ISOrpm i...

Reinforced plastic materials are widely used in high sophisticated applications. Fiber length has a strong impact on the mechanical properties of composite materials. Being able to reliably and accurately evaluate residual fiber distribution sample is key understand mechanisms breakage through experimental investigations, permitting prediction for flax reinforced components. To optimize composi...

The development and application of a software package for the design of twin screw compressors is presented in this paper. The package can be used to calculate the rotor profile, geometrical characteristics, thermodynamic performance, forces on rotor, rotor deflection and cutter shape. A user-friendly interface and some powerful post-processing programs are also included in the package. The app...

Particulate reinforcement of polymeric matrices is a powerful technique for tailoring the mechanical and degradation properties bioresorbable implant materials. Dispersion inorganic particles critical to achieving optimal properties, however established techniques such as twin-screw extrusion or solvent casting can have significant drawbacks including excessive thermal particle agglomeration. W...

In this study, the heating capacity of nanocomposite materials enhanced with magnetic nanoparticles was investigated through induction heating. Thermoplastic (TP) matrices polypropylene (PP), thermoplastic polyurethane (TPU), polyamide (PA12), and polyetherketoneketone (PEKK) were compounded 2.5–10 wt.% iron oxide-based (MNPs) using a twin-screw extrusion system. Disk-shape specimens prepared b...

In order to better understand and motivate students to the needs of dynamic modeling and multivariable (MVSISO) design consideration, the case-study of a twinscrew food extruder provides a real-life example with all the requisite components necessary for unit operations management. The study provides a two-input, two-output system able to be simulated via Simulink model that requires knowledge ...

UNLABELLED Screw-retained implant crowns may be clinically demanding, especially managing the esthetic and occlusal challenges of screw access channel closure. Many clinicians have moved away from using screw retention as a means of fixing a crown to an implant in favor of cementation to an underlying abutment. A link has been established between peri-implant disease and excess cement extrusion...