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28
2023-04
Silicone Defoamer Composition and Functions
Defoamers (also known as defoaming agents) are additives designed to eliminate foam that forms during manufacturing processes. Organic silicon defoamers primarily consist of silicone oil, a silicone‑based component. At room temperature, silicone oil is a non‑volatile, oily liquid that is insoluble or only slightly soluble in water, vegetable and animal oils, and mineral oils. It exhibits both high‑temperature and low‑temperature resistance, possesses chemically inert properties, maintains physical stability, and lacks biological activity.
2023-04-28
23
2023-04
Food-grade defoamers are quietly transforming foam.
As the saying goes, “Food is heaven for the people.” As a source of essential nutrients and energy, food is indispensable to human production and daily life. The variety of foods is vast, encompassing grains, meats, dairy products, beverages, and more—each not only meeting our nutritional needs but also stimulating our taste and smell, catering to diverse preferences. However, during food processing, the presence of proteins or the addition of food additives often gives rise to foaming issues. Such foam can detract from a product’s appearance and texture, leading to undesirable outcomes. To address this, food-grade defoamers are commonly incorporated into the manufacturing process.
2023-04-23
23
2023-04
What is the purpose of defoamers? In which industries can they be used?
Defoamers, also known as antifoaming agents, are industrial additives that eliminate foam. They reduce and prevent the formation of foam in industrial processes. More precisely, defoamers first break down existing foam and, through their antifoaming properties, inhibit the further generation of foam.
2023-04-23
28
2023-02
What benefits does the use of food-grade defoamers bring?
Foam in food is often dismissed as a minor issue in everyday life, rarely drawing much attention. However, when it appears during processing, it becomes a significant concern. The presence of foam not only reduces processing efficiency but also degrades the product’s texture and mouthfeel. Consequently, the use of food-grade defoamers is essential.
2023-02-28
28
2023-02
How much do you know about the characteristics of common antifoaming agents?
Foam is inherently very unstable; for example, when a liquid is stirred, foam forms but disappears as soon as the agitation ceases. However, in industrial processes, the presence of foam‑stabilizing substances makes it considerably more difficult for the foam to dissipate on its own. The purpose of adding a defoamer is precisely to eliminate the stable foam generated by these stabilizing agents.
2023-02-28
09
2023-01
The principle by which defoamers eliminate foam
The principle originates from sprinkling high‑proof alcohol or edible oil onto the foam. When these substances mix with the foam liquid, they significantly reduce the surface tension in that area. Because these chemicals are typically poorly soluble in water, the reduction in surface tension is confined to the foam‑plastic component, while the surface tension around the foam remains largely unchanged. The portion where the surface tension is lowered—clearly the surrounding tensile band—widens and eventually ruptures.
2023-01-09
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