PolyCarboxylate ether-based superplasticizers (PCEs) are a type of comb-shaped copolymers used as polymeric dispersants in cementitious materials. PCEs have a high degree of dispersity, which limits the suitability of conventional characterization techniques, such as Size Exclusion Chromatography (SEC). Properties of PCEs strongly depend on their molecular structure and a comprehensive characte...

The Deepwater Horizon drilling rig exploded in April 2010, resulting in widespread environmental, economic, and population health damage. Previous oil spills have resulted in emotional consequences in local populations that rely on affected areas for their economic and nutritional livelihoods.1–4 Less is known about the mental health effects among specific subpopulations, particularly women who...

We developed a set of processes for depositing silver nanoparticles on a glass substrate that involves using a modifi ed silver mirror reaction, whereby dispersants are added to a conventional silver mirror solution. The whole set of processes was completed in 15 min in a nonvacuum environment, except the cleaning processes with oxygen plasma at 20 Pa, and at a low cost. The processes can be ap...

This paper deals with research into pool boiling critical heat flux (CHF) of water–Al2O3, water–TiO2 and water–Cu nanofluids on horizontal stainless steel tubes. The experiments were conducted under atmospheric pressure. Nanoparticles tested at concentrations 0.001%, 0.01%, 0.1% 1% by weight. Ultrasonic vibration was used in order to stabilize the dispersion nanoparticles. Although dispersants ...

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...