Alibaba offers 1,577 hydrophobic silica products. About 37% of these are oxide, 15% are surfactants, and 12% are coating auxiliary agents. A wide variety of hydrophobic silica options are available to you, such as coating auxiliary agents, plastic auxiliary agents, and petroleum additives.
Defoaming compounds that can be included in a HVAC system are provided. In some embodiments, the refrigerant compositions and/or additives may include one or more defoaming compounds that have one or more of the following properties: helping reduce a surface tension of the lubricant and/or refrigerant; having a different surface tension than the lubricant and/or refrigerant; being .
Compositions and processes for breaking or reducing foam in a drilling fluid, or improving the disposal of a drilling fluid, or reducing or preventing entrained gas in a drilling fluid. The compositions include a defoaming composition comprising hydrophobic silica and an organic acid ester of a polyoxyethylene-polyoxypropylene block copolymer.
Defoamer for Crude Oil -AIR-05 Polysiloxane defoamer for crude oil exploitation, transportation, refinery, and delayed cooking. Defoamer for Printing Ink -AIR-06 Silicon polyether and advanced fatty acid polyamines defoamer for various paper-making coating, water-based ink, colour paste system, broad spectrum water-based ink.
Defoaming: As silicone has anti-foaming properties, it is used in the food processing and food manufacturing industry as a preventive substance from food spoilage. Dry cleaning: Liquid silicone is an effective dry cleaning agent and proves to be a more environmentally-friendly …
There is provided hydrophobic silica that will cause no deterioration in the gloss of resin or of a coating film even when having been applied as a wear resistance-improver or a mechanical strength enhancer for resin or as a fluidizing agent for powder paint or the like and that will cause no deterioration in the gloss of a resulting coating film even when having been applied to a defoaming agent.
Dec 24, 2013· The defoamer formulation as claimed in claim 8, wherein the hydrophobic precipitated silica is obtained by a process that includes precipitating a precipitation silica and isolating a silica filter cake, then forming a suspension of the silica filter cake in water and adjusting the pH to 9 with at least one basic agent to form an alkalified .
a superior hydrophobic silica emulsion in oil, useful principally as an antifoaming agent, is prepared by starting with a silica hydrosol emulsified oil. water is stripped from the emulsion and the emulsion system is then reacted with a polysiloxane which renders the oil-dispesed silica particles (sol dimension) hydrophobic.
Synthesis and Characterization of Silicone-Based Surfactants as AntiFoaming Agents . agents, lubricants or anti-f . Oils and mixtures of oils with hydrophobic particles are widely used in .
The role of hydrophobic particles in mineral oil-based defoamers was investigated by fluorescence labeling and microscopy. Defoamer emulsion droplets in water adhere to the air/water interface to become lenses that nucleate bubble coalescence. Fluorescent labels were covalently bonded to silica, and confocal laser scanning microscopy showed that the hydrophobic silica particles concentrate in .