Ultrasound micro-molding technology has proved useful in processing biodegradable polymers with minimum material loss. This makes this technology particularly suitable for the production of biomedical microdevices. The use of silica (SiO2) nanoparticles is also interesting because of advantages like low cost and enhancement of final properties. Evaluation of the capacity to create a homogeneous...

The structure of an oil/water emulsion is known to depend on its preparation method. Here, we test whether the preparation protocol can be used to control the morphology of ‘‘model’’ blends of immiscible polymers compatibilized by a diblock copolymer. Two preparation protocols were tested. In the ‘‘double blending’’ protocol, a droplet-matrix blend was blended with additional drop-phase fluid. ...

The use of waste materials to make eco-friendly wood-polymer composites has been explored by many researchers for academic and industrial purposes due the low cost, biodegradability, availability wood flour. Polypropylene (PP)/ground tyre rubber (GTR)/wood flour (WF) were prepared using an internal batch mixer at a temperature 165 °C 8 min, samples injection-moulded 190 with pressure 6 MPa. des...

The mechanical, viscoelastic and structural properties of starch/ poly (butylene adipate co-terephthalate) (PBAT) blown films produced by reactive extrusion were evaluated using citric acid (CA) and maleic anhydride (MA) as compatibilizers. Scanning electron microscopy images showed more homogeneous structure when CA and MA were included in the formulation. The tensile strength (MPa) was improv...

Non-catalytic hydrogenation of liquid natural rubber (LNR) via thermal decomposition 2,4,6-trimethylbenzenesulfonylhydrazide (MSH) is reported in this study. Parameter studies the reaction were performed by utilizing combination response surface methodology and central composite rotatable design (RSM/CCRD). The effects each variable interaction between two variables (i.e. MSH:LNR weight ratio t...

Polypropylene/polyimide (PP/PI) blends were synthesized by reactive extrusion with the in situ polymerization of polyimide phase presence maleic anhydride grafted polypropylene (PP-g-MA) as a compatibilizer. Blends reactively processed twin-screw extruder at 200 °C, PI content varying from 10 to 40 wt%. Examination morphology scanning electron microscopy (SEM) depicted fine sub-micrometer dispe...

In this study, wood polymer composites (WPC) were produced by polypropylene (PP) as the matrix material and 30 wt% olive flour (OWF) filler material, for injection applications. Various treatments of OWF—including single treatment or co-modifications using silane treatment, heat maleic anhydride grafted (MAPP) compatibilizer—were used to improve PP/OWF compatibility mechanical properties. Struc...

Thermoplastic elastomers are a special class of polymeric materials that combine the properties of thermo plasticity during processing and rubber-like behaviour in service. They can be processed in conventional plastic processing equipment, such as twin screw extruders, internal batch mixers, extruders and injection moulding machine, but exhibit vulcanized rubber like ultimate properties (i.e. ...

This work aimed to investigate the biopolyethylene (BioPE)/wood powder (WP) composites compatibilized with polyethylene-grafted maleic anhydride (PE-g-MA), using macaíba oil (OM) as a processing aid. The were prepared, fist, in an internal mixer and, later, crushed flakes molded by injection. Mechanical properties (impact, tensile, flexural and Shore D hardness), heat deflection temperature (HD...