Resin-based composites have the characteristics of light weight, high strength, and corrosion resistance. However, in recent years, the material industry and the pillar industries of the national econ......
2019-12-10Organic electroluminescence device (OELD) is a new type of flat display device newly developed. It has a low turn-on and drive voltage, and can be driven by DC voltage. It can be matched with large-sc......
2019-12-10Silicon dioxide is an important raw material for the manufacture of glass, quartz glass, water glass, optical fiber, important parts of the electronics industry, optical instruments, crafts and refrac......
2019-12-10Formulators use particles to enhance the functionality of existing polymer matrices used in adhesive and sealant products. Fumed silica is commonly used as a rheology control additive to provide sag r......
2019-12-10Self-emulsifying polyether silicone oil defoamer is a self-emulsifying new type of high-efficiency composite silicone defoamer which uses silica white silicon grease and polyether modified silicone oi......
2019-12-09Emulsion-type defoamer is a general-purpose silicone defoamer. It is an oil-in-water (O) made with low-foaming emulsifiers such as Span, Tween, and polyethylene glycol ether. / W) type emulsion. Its u......
2019-12-09An important role of gas phase silica in defoamers is adsorption. Due to the small particle size, large specific surface area, high surface energy, and three-dimensional network structure, silica can ......
2019-12-09An important role of gas phase silica in defoamers is adsorption. Due to the small particle size, large specific surface area, high surface energy, and three-dimensional network structure, silica can ......
2019-12-09An important indicator of the quality of the defoamer is its dispersion effect. Only those with low solubility and large dispersibility can become the active ingredients of the antifoaming agent. As t......
2019-12-09Hydrophobic fumed silica is produced by a chemical reaction between a hydrophilic fumed silica and an active silane (such as chlorosilane or hexamethyldisilazane). It is hydrophobic (hydrophobic) and ......
2019-12-09Hydrophilic fumed silica is produced by the hydrolysis of volatile chlorosilanes in a hydrogen-oxygen flame. From a chemical point of view, these loose white powders are composed of high-purity amorph......
2019-12-09Generally, silicone oil with a large molecular weight is insoluble in a surfactant solution, and for small molecular weight silicone oils, it is easily solubilized by surfactant molecules, thereby cha......
2019-12-06Certain low-molecular substances that can be thoroughly mixed with the solution can solubilize the surfactant of the bubble and reduce its effective concentration. Low-molecular substances such as alc......
2019-12-06In the foaming water system, the addition of hydrophobic silica (ie, hydrophobic white carbon black) particles alone has a defoaming effect. The hydrophobic white carbon particles will attract the hyd......
2019-12-06Because the surface of the bubble film adsorbs the surfactant, the surface tension is reduced. Therefore, under local pressure, the bubble film becomes thinner at the same time, and the surface tensio......
2019-12-06
