In refractory castables during heat treatment, there is a dynamic change from hydraulic bond to ceramic bond. During heating, the emission of water takes place; this changes conditions inside material something similar hydrothermal ones. This influences processes that occur heating castables, and in consequence, properties final material. The aim work was evaluate influence chelate compounds li...

The dispersion state and the efficiency of mixture different components in a composite film have an important impact on its mechanical optical properties. In present work, impacts treatments disaggregation fibrous clay particles water, properties related cellulose nanofiber (CNF)-based films, were evaluated. X-ray diffraction studies, performed samples sepiolite palygorskite, revealed only mino...

We present results of computational modeling of the formation of uniform spherical silver particles prepared by rapid mixing of ascorbic acid and silver-amine complex solutions in the absence of a dispersing agent. Using an accelerated integration scheme to speed up the calculation of particle size distributions in the latter stages, we find that the recently reported experimental results-some ...

In recent studies, there has been an increasing focus on Nanoparticles Enhanced Oil Recovery (NPEOR). NPEOR is a method that was initially developed to improve microscopic and macroscopic displacement efficiency. some applications NP have assisted the conventional EOR methods such as polymer, surfactant, Co2 flooding, with purpose of oil recovery. this literature, abilities use in are investiga...

Biofilm-associated infections pose a complex problem to the medical community, in that residence within the protection of a biofilm affords pathogens greatly increased tolerances to antibiotics and antimicrobials, as well as protection from the host immune response. This results in highly recalcitrant, chronic infections and high rates of morbidity and mortality. Since as much as 80% of human b...

This research describes the effects of shear flow-induced alignment of dispersed single-walled carbon nanotubes in viscous polymer solutions and the application of this alignment strategy to produce epoxy-based composites with superior mechanical properties. Previously, it was shown that the use of an anionic surfactant (i.e. sodium dodecylbenzene sulfonate, NaDDBS) in conjunction with a weakly...

An optimized extraction and cleanup method for the analysis of chlortetracycline (CTC), doxycycline (DC), oxytetracycline (OTC) and tetracycline (TC) in soil is presented. Soil extraction in a pressurized liquid extraction system, followed by extract clean up using solid-phase extraction (SPE) and tetracycline determination by liquid chromatography tandem mass spectrometry (LC-MS/MS) provided a...

Bromocresol green (BCG) and bromophenol blue (BPB) in acidic and basic forms are used as dispersing agents to suspend multiple-walled carbon nanotubes (MWCNTs) into deionized water. The chemical structures of dye molecules are characterised by ultraviolet-visible-near infrared and nuclear magnetic resonance spectroscopies. The presence of MWCNTs in water is evidenced by transmission electron mi...

Abstract Polymeric dispersing agents were prepared from aliphatic polyesters consisting of δ ‐undecalactone (UDL) and β , ‐trimethyl‐ ε ‐caprolactones (TMCL) as biobased monomers, which polymerized in bulk via organocatalysts. Graft copolymers obtained by coupling the to poly(ethylene imine) (PEI) without using solvents. Various parameters that influence performance pigment‐based UV‐curable mat...