In hydrocracking and other foaming reactors, the foam rises to the top because it has a higher gas fraction than the bubbly mixture from which it comes. The high gas hold-up in foams is undesirable in chemical reactors because it strongly decreases the liquid residence time and in hydrocracking reactors also promotes the formation of coke. To study foams we built a cold slit bubble reactor whic...

In recent years, joining technologies have been developed owing to multi-materials. From the viewpoint of recycling, separating joined materials is necessary when they are disposed. Our previous study steel and aluminum plates showed that easy separation by foaming area at time disposal effective. Still, it could not be applied a single plate. this study, we attempted use agent interface before...

A FTIR (Fourier Transform Infrared) microscope combined to a CO2 high-pressure cell has been used determine simultaneously the uptake and swelling of acrylic polymer systems, precursors CO2-foamed polymers (PMMA), triblock copolymer (MAM) PMMA/10 wt% MAM blend. Samples were saturated with supercritical (scCO2) up high pressures (5, 10, 30 MPa) at 40 °C 130 °C. The behavior upon pressure increas...

The manufacture of sintered glasses and glass-ceramics, glass matrix composites, and glass-bounded ceramics or pastes is often affected by gas bubble formation. Against this background, we studied sintering and foaming of barium silicate glass powders used as SOFC sealants using different powder milling procedures. Sintering was measured by means of heating microscopy backed up by XPD, differen...

Abstract This paper focuses on the relationship between composition of foam glass and its thermal conductivity density. In this experimental research, three levels particle size foaming agent (SiC) quantity were tested. The results showed that increased by increasing ratio fine particles. On contrary, was not affected changing weight ratio. density decreasing ratio, there no linear relation par...

Although mild, fragrance-free, nonfoaming cleansers generally are recommended for individuals with sensitive skin, many consumers choose fragranced foaming cleansers. The addition of hydrophobically modified polymers (HMPs) to mild facial cleansers has been shown to improve product tolerability in individuals with sensitive skin while facilitating foaming. The objective of the 2 studies reporte...

The aim of this work is to understand the effects of the rheological and interfacial properties of a model food on continuous foaming operation in laminar flow conditions. The rheological properties of food model (glucose syrup) were adjusted using three polysaccharides: xanthan, LM pectin and guar. Interfacial properties were varied using two kinds of proteins: Na-caseinates and whey proteins ...