Mineral oil defoamer is one of the more common types of defoamers in addition to silicone and polyether defoamers, usually used in industrial manufacturing more. Mineral oil defoamer itself is relatively low surface tension, can play a preventive role. The mineral oil component in the liquid film of the foam is incompatible with water, resulting in the destruction of the integrity of the liquid film so that its recovery and flow is hindered and damaged, and eventually make the foam rupture. Prevent foam generation so as to achieve the effect of defoaming and foam inhibition. Then the mineral oil defoamer which is a powerful component and what is it? And what is the proportion of the situation, the next for everyone to introduce.
The main component of mineral oil defoamer is made of mineral oil or any other oil insoluble in foaming medium as a carrier of about 50%-70%. Its specific gravity size is the key too large will affect its solubility and emulsification too small will affect its stability and effectiveness.
Inorganic hydrophobic particles account for about 10%, she will be uniformly dispersed in mineral oil, is one of the very key factors, because its hydrophobic strength determines the effect of defoaming performance, can help defoaming factors more easily to reach the surface of the liquid film, so that the defoamer quickly and liquid film integration to increase the speed of defoaming.
Emulsifier is also known as defoamer additives whose purpose is to increase the emulsification performance so as to increase the normal play of defoamer, that is, stability. Usually 10% of the ratio is also usually used and mineral oil compatible, and does not affect the appearance of performance of emulsification additives, will be compounded to the mineral oil defoamer, can play in the water phase system and synergistic defoaming factor defoaming.
