Defoamer do not know how much you know, defoamer is also called anti-gun agent, as the name suggests is to deal with the harmful foam produced in the chemical industry production, generally speaking, defoamer has the role of breaking, defoaming, foam suppression, its use is very wide, mainly reflected in the following aspects:






Defoamer usually contains hydrophobic precipitated silica dispersed in mineral oil or silicone oil. In fact, the larger the particle size of the silica used as a defoamer, the easier it is to precipitate, especially in low-viscosity dispersion systems. The addition of hydrophobic fumed silica can completely prevent or significantly reduce this sedimentation process. The silanol group in the fumed silica is like a lot of needles, punctured the bubbles, made the small bubbles converge into large bubbles, overflow the system, and achieve the effect of defoaming. In some defoaming systems, hydrophobic fumed silica can also be a defoaming silica component, fumed silica plays a role in the defoaming agent, such as thickening and preventing settlement, and more importantly, enhancing the defoaming ability and improving the defoaming ability.






1. In the field of synthetic rubber and resin industry, we know that when using some latex synthetic gloves, because the main material is fatty acid soap as emulsifier, the foaming phenomenon will be more serious in the process of use, especially after the end of the action, when the stripping reaction does not react monomer, this phenomenon will be more serious. Bubbles are produced during the reaction of these complex chemical products. These bubbles not only greatly affect the production efficiency in the production process, but also cause waste of raw materials and products, prolong the reaction cycle of the product, and pollute the environment, so in some of the process of foam generation, this possibility will be reduced to a minimum or suppressed, that is, antifoam agent. The use of defoamer in these rubber products can improve the stability of the product, improve the wear resistance of the product, especially for some products that need to be dyed, can improve its color.






2, in the petroleum industry, in the national petrochemical field of defoamer is also widely used, in the process of petroleum refining, especially in the process of crude oil distillation, the distilled gas foam will affect the production efficiency of the product, the use of defoamer will achieve high efficiency continuous operation. At the same time, the application of defoamer in textile industry is also compared