Defoamer / Antifoam
A chemical additive used to reduce and hinder the formation of foam is called a defoamer or anti-foaming agent. Both terms are often used interchangeably. The difference types of defoamers used are: –
In many manufacturing, commercial and industrial process applications, undesired foaming causes severe problems. So careful selection of defoamers and antifoams is necessary to ensure the perfect and maintained operation of the system with full efficiency.
Duro Kimia Sdn Bhd is a supplier of high quality Silicone-based defoamer / antifoaming agent from Momentive Performance Materials, which we are selling to a wide range of industrial applications. The most common grades available are: –
Mechanism of Silicone Antifoam
Due to their flexible backbone and unique surface activity, silicones can do many things very well. Existing foam is rapidly collapsed by silicone defoamers.
Due to the smooth surface elasticity and surface viscosity of foam film, it is difficult to break it down. Thanks to the Silicone’s unique features (low surface and interfacial tensions) they de-stabilize the film. This property supports them to flow over the foam film. The antifoam penetrates the pores in the foam and subsequently ruptures them. This is done by the silicone’s low interfacial properties and surface tension, which has the ability of weakening the foam-stabilization properties and in turn collapse it.