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...

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...

In this study, a commercial chain extender (Polyad PR 002) in concentrations of 0.5, 1.0, and 1.5% w/w was used as compatibilizer post-consumed PET/PA6 blends (25/75, 50/50 e 75/25) processed laboratory mixer. The degradation rate, phase miscibility, chemical interaction, crystallization, melting behavior, well the thermal stability mixtures, were analyzed by torque rheometry, scanning electron...

background. hemostatic agents are applied to prepare an isolated bleeding-free condition during dental treatments and can influence adhesive restorations. this study evaluated the effect of a hemostatic agent (viscostat) on microleakage of contaminated dentinal margin of class v composite resin restorations with three adhesives. methods. sixty freshly extracted human molars were selected and cl...

helminths infections are chronic illness in human being and cattle. the use of alternate drugs has been a remedial measure against the resistant strains of helminth parasites, as well as means of reducing the cost of controlling diseases caused by helminthes. pseudocedrelakotschyi is a medicinally valuable plant and possesses various pharmacological properties. p. kotschyi has been traditionall...