Foam is a relatively common phenomenon in industrial production. This is mainly related to the production formula and process. In some occasions of industrial production, some surfactant additives need to be added to meet the performance requirements of good cleaning and lubrication. However, this will easily lead to a large number of foams. This is a simple and effective method for defoaming and adding defoamers. This article analyzes the hazards of foam and the ways to eliminate it.
(Picture: The harm of industrial foams)
The hazards of foam and defoaming methods
In most occasions of industrial production, foam is harmful. For example, in the production process of water-based paint, foam will cause film shrinkage, pinholes and other defects. Textile printing and dyeing industry: Foam easily affects the printing and dyeing process, causing uneven dyeing and unclear printing. Secondly, in the textile wastewater treatment process, a large amount of foam will increase the cost of wastewater treatment and increase the difficulty of wastewater treatment. In the actual production process, foam often brings negative hazards such as affecting product quality, increasing costs, and wasting raw materials. Therefore, it is necessary to carry out defoaming treatment in time to eliminate or suppress harmful foam.
The defoaming methods mainly include physical solutions and chemical defoaming solutions:
1. Physical methods
Change the temperature to make the liquid evaporate or freeze; change the pressure sharply; centrifuge the solution; ultrasonic vibration and filtration, etc. destroy the foam.
2. Chemical methods
Adding defoamer, in addition to using defoamer, changing pH, salting out or adding chemical reagents that react with foaming agent can also remove foam.
Adding defoamer is a widely used defoaming method in the industrial production process. It is commonly used in water-based coatings, textile printing and dyeing, paper production, the entire circuit board process, industrial cleaning, metal cleaning, metal working fluids, latex paint, rubber, and bonding Used in defoaming and anti-foaming industries such as chemical agents.
(Picture: How to eliminate foams)
Defoaming principle of defoamer
Defoamers often penetrate into the foam system in the form of particles. When the foam system wants to produce foam, the defoamer present in the system immediately destroys the elastic film of the bubbles and inhibits the generation of bubbles.
If bubbles have been generated, after the added defoamer contacts the foam, it will further expand and invade in layers to replace the original foam membrane wall. Liquids with low surface tension always flow to liquids with high surface tension. The low surface tension of the defoamer itself makes the membrane wall gradually thinner, which leads to the burst of bubbles.
The defoamer is not only widely used in the industry, but also more convenient to use. The effect of using the right defoamer is also very obvious. However, defoamers are more targeted. Nanhui defoamer manufacturer is here to provide you friends from the manufacturer, if you encounter a foam problem, you must add the right defoamer, otherwise, it may cause money to be spent, but the problem is not solved.
Nanhui defoamer source is sold directly from the factory, has an independent R&D laboratory and a professional defoamer engineer R&D team, and can develop and design corresponding defoaming solutions according to your industry or sample, and the performance requirements of the defoamer .
(Picture: Nanhui defoamer sample)
Nanhui customized defoaming formula according to customer needs, which not only defoams quickly, has high foam breaking rate and good foam suppression, but also has a small dosage, high cost performance and good customer feedback.
The source manufacturer of Nanhui defoamer can solve various industrial foam problems in a targeted manner. If you encounter bubble problems in related industries, you can call Nanhui technical specialist Ms. YOYO 86 13428601010.
