What are the types of defoamers?
Knowing the causes of foam and trouble, we must choose the appropriate antifoam agent to deal with, but what kinds of antifoam agent? Usually defoamers are more common in the following categories.
1, Silicone Defoamer
silicone defoamer, by polydimethylsiloxane (dimethylsiloxane oil) in the high temperature and high-speed mixing with silica fully reacted liquid products, also known as silicone ester, oily products. Also prepared into oil-in-water water emulsion products, used for aqueous systems of defoaming foam inhibition. Silicone antifoam agent as the effectiveness and cost-effective products, currently used more widely.
2 Polyether Defoamer.
Polyether antifoam agent is one of the most important varieties of antifoam agent, with non-toxic, odorless, non-irritating and easy to disperse in the water and other characteristics, in addition to general industrial applications, but also can be used in food, fermentation, cosmetics and pharmaceutical industries, is containing silicone antifoam agent can not be replaced.
3、Fatty alcohol defoamer products.
Fatty alcohol defoamer, a kind of defoamer, fatty alcohol defoamer is special hydrocarbon compounds and a few synergists and emulsifiers, dispersants and other components of the O / W-type defoamer. Because fatty alcohol defoamer does not contain silicon. Widely used in paper white water, sewage treatment, ink, paper coating, chemical industry, high temperature spray cleaning industry, etc.
4. Polyether modified silicone antifoam
Polyether-modified silicone antifoam is a block polyether-modified silicone. Block polyether modified silicone can be used in the field of textile and paper, used to improve the softness of textiles or paper.
Polyether modified silicone antifoam agent in addition to antifoam agent, but also used in textiles and paper treatment agent softener, pesticide synergist spreading penetrant, to enhance the efficacy of the drug. Used as leveling agent for paints and coatings.
5. Other compounding defoamer
When a single variety of defoamer can not meet the demand for defoaming and foam suppression, we should compound defoamer products, through one or several kinds of defoaming substances, through the appropriate process to realize the special needs of the site.
