defoamer-antifoam

What is a silicone defoamer ? Why can silicone work to break foam? The defoamers must be able to reduce the surface tension to break foam in order to control foam, Compared with most other foam control materials, silicone has lower surface tension and interfacial tension, it is difficult to be dissolved by surfactants commonly used in the system. At the same time, compared with glycol-based or mineral oil-based defoamers, the toxicity is relatively low. What are the advantages of silicone defoamers? Is it suitable for corrosive conditions? Silicone defoamers can ensure efficient and lasting effect. Silicone defoamers are very safe. Many categories meet the requirements of the US Food and Drug Administration (FDA), the US Environmental Protection Agency (EPA), the US Department of Pesticides (USDA) and other regulations , Low surface tension, can effectively control the generation of foam in a variety of foaming materials. There are a variety of defoamers that can perform well under var...

How should we select defoamers / antifoams for paper pulp? Pulp and paper antifoaming agents is very necessary in papermaking, because a lot of foam will be generated in the process of papermaking and pulping, the surface tension of the generated saponification is less than the surface tension of black liquor produced by cooking materials, making it It exists in the surface layer of black liquor and forms a thin film, which forms foam under the mixing action of air. The papermaking process is mainly divided into two major steps,  Washing pulp Papermaking No matter which step inevitably produces foam, so you need to use defoamers/antifoam for paper industry, there are many types of defoamers, the following is for everyone Introduce the characteristics of papermaking defoamers. Excessive foaming will result in the loss of fibers and raw materials. Further, the presence of air in the wet paper web can affect the filtration rate of paper in the paper making pulp defoamers is a better s...

Invely-3180 defoamer for paper pulp（black liquor） It is well known that pulping is the process of separating fiber materials from plants to obtain pulp. In the pulping process, a large amount of foam will be produced, affecting the production efficiency and the quality of the pulp board. The role of defoamers in the pulp industry is very critical. It is used to prevent various problems caused by foam during the pulp washing process, such as slurry overflow tank, reducing the efficiency of the pump, the formation of deposits on the paper, pulp water filtration Problems, etc. Invely defoamer 3180 uses innovative silicone chemistry to achieve superior foam suppression. It can be used in black liquor without depositing on paper, improving water filtration performance and effectively helping pul p mills Improve efficiency. Invely-3180 improves production efficiency while reducing total operating costs. Invely-3180 is specially designed for pulp and is also recommended for industrial cleanin...

Foam control in paper machine sizing system (paper defoamer) Combined with the production practice of Nan Paper #5 paper machine, conclude the formation, type, hazard and control measures of foam in the slurry. Edited by Mr Hu. Foam is generated when air is mixed into the slurry. The presence of foam can have a number of adverse effects on the papermaking process, especially on high speed paper machines where foam control is more important. 1.The cause and harm of foam formation Studies have confirmed that foam is a colloidal system formed by the dispersion of gases in a liquid. In papermaking systems, the gas is typically air or CO2, and the liquid medium is typically water. In the papermaking process, many operations cause the process water and white water to mix into the air to form a foam. For example, the slurry falls down in a waterfall, the air of the slurry pump leaks, the agitator of the slurry pool agitates too strongly or the agitator exposes the liquid surface, the pre...

Invely-620D in papermaking pulping black liquor trial application: Costomer introduction: A paper mill in Shandong Province has an annual output of 600,000 tons. The raw material is hardwood. The foaming in the black liquor of papermaking is serious. Lead into efficiency of vacuum washing is greatly reduced, which seriously affects the stability of production and the quality of paper products, and even causes the machine to stop. . After Learned our defoamer, sent 20 kg of black liquor to our company for testing and selection, recommended the Invely-620D, the foam was effectively controlled. Date sheet Product Name: Defoamer Invely-620D Key property: ·    Good compatibility, silicone grease does not precipitate and float after moderate dispersion in the system; ·    Easy to disperse in water, good compatibility within the addition; ·    Acid and alkali resistant Appeara...