this work has setup to determine the effects of a solvent on the structure and properties of polypropylene fibres with different physical structures. samples of continuous filament yarns with different physical structures (partially oriented (poy) and drawn yarns) are treated with decahydronaphthalene (decalin) at 28, 55, 75 and 95oc. at 95oc, the samples are dissolved completely in decalin and...

Studies of drug-polymer compatibility play an important role in the preformulation stage for development pharmaceutical dosage forms. The potential physical and chemical interactions between drugs polymer can affect nature, stability bioavailability form as a result therapeutic response clinical phase. present study reveals thermal spectroscopic mixtures Vildagliptin (VDG) HPMC combination with...

The results obtained from a study of the thermal transformations polymorphic long-chain normal paraffins (n-C32H66 and n-C36H74) are presented here. research was performed using power-compensated Differential Scanning Calorimeter (DSC). Both heating cooling experiments were in dynamic nitrogen atmosphere. Thermodynamic data for both transitions, as well fusion endotherms, determined DSC curves....

Salt hydrates are latent storage materials with exterior properies like energy density, availability and cost efficiency. However many of them have handicaps not overcome yet irreversibility, corrosion overcooling. In this work, it is aimed to produce polymeric based salt for the first time. For reason some selected polymers (polyvinyl alcohol (PVA), poly(ethylene-co-acrylic acid) (PEAA) polyst...

The potential of liquisolid systems to improve the dissolution properties of a water-insoluble agent (indomethacin) was the purpose of this survey. In this study, different formulations of liquisolid tablets using different co-solvents (non-volatile solvents) were prepared and the effect of several amounts of them on the dissolution behaviour of indomethacin was investigated. It is worth mentio...

The potential crosslinking of three types nitrogen-containing functionalized silica (TAAcONa, guanidine, and triamine) with polyacrylamide (PAM) has been investigated. Only triamine was able to crosslink PAM, producing barely flowing gel storage modulus around 700 Pa. Micro differential scanning calorimeter (?DSC) analysis illustrated exothermic peaks indicating PAM polyethyleneimine (PEI), ons...

Abstract The sorting stage of mechanical recycling post‐consumer polyolefins has severe challenges. Polypropylene (PP) is often contaminated with polyethylene (PE) and vice versa. To meet quality requirements, characterization the recycled pellets needed. address this problem, fast generating a statistical assessment content various batches from required. This investigation shows that use scann...

parkia biglobosa starch was subjected to different heat-moisture treatment (hmt) at different moisture contents (15, 20, 25, and 30%) at 110oc for 16 hours. the content of resistant starch (rs) was the lowest (33.38%) in the untreated native parkia and increased in the samples with hmt-15 (37.79%), hmt-30 (39.64%), hmt-25 (46.63%), and hmt-20 (50.14%), showing significant increase (p < 0.05) in...

Nanofluids are the heat transfer fluids having remarkable thermal properties. The paper presents the experimental analysis of thermal conductivity, density, specific heat and viscosity of multiwalled carbon nanoparticles dispersed in water at various temperatures and particle concentrations. To examine the forced convection heat transfer of Multiwalled Carbon Nanotubes (MWCNT)-water nanofluid, ...