Omar Bonilla

• National Polytechnic School

In the present work the electrochemical deposition of hydroxyapatite using simulated body fluid (SBF) as an electrolytic medium was carried out on Ta and Ta/TaN coatings on BIOLINE stainless steel SS316LVM (SS). The electrochemical deposition performed on each substrate for 3000 and 6000 s, at different potentials were determined from cyclic voltam...

In this work, we evaluated the effect of a low magnetic field on the deposition of hydroxyapatite (HAp) on different metallic substrates. The substrates studied were titanium and BIOLINE stainless steel SS316LVM with and without Ta and TaN/Ta coatings. Before deposition, the uncoated Ti and SS316LVM substrates were treated with alkali to improve th...

This work aimed to study thermo-mechanical behavior of blends based on polyvinyl alcohol (PVA), achira starch and glycerol as plasticizer. Several formulations were prepared using an experimental mixture design. Initially, raw materials were mixed in a roll mill at 60°C. Afterwards, these blends were molded at 110°C and 38 MPa to obtain translucent...

Abstract: This article explains the development of a composite made from rigid polyurethane and oil empty fruit bunch fibre with the objective of reducing production cost. As rigid polyurethane raw material, it was used: diphenylmethane diisocyanate and polyoxypropylenepolyol, manufactured by Huntsman. The oil palm empty fruit bunch fiber was colle...

The sizing effect of abaca fiber was studied to improve its weavability and thus, to obtain a weave that employ a fiber in warp and weft directions. It was chosen the Red Tangongon variety as the abaca fiber that showed the best ability for being woven. Furthermore, it was determined a method to quantify the abrasion resistance of this fiber, that...