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ZCHG29
ZhongCheng Chemical
ZCHG29-01
Antifoaming Agents Polyether Defoaming Agents Organic Silicone Oil Defoamer
Silicone Liquid Defoamer is also called defoamer, antifoam, defoamer actually means to eliminate foam. It is a substance with low surface tension and high surface activity that can inhibit or eliminate foam in the system. A lot of harmful foam will be produced in the industrial production process, which seriously hinders the progress of production. At this time, defoamers need to be added to eliminate these harmful foam. The advantage of silicone defoamers is that they can eliminate various types of foam, including high foam and low foam, and have excellent stability and compatibility during use. They can also maintain good defoaming performance in the presence of surfactants, making them more suitable for certain applications.
Specification of Silicone Liquid Defoamer
Chemical name | Defoamer |
Common name | Foam inhibitor |
CAS NO. | 9006-65-9 |
Molecular formula | |
Molecular weight | 162 |
Grade | Industrial Grade |
Packaging specifications | Plastic bucket，25KG |
Content | Organosilicons, Polyethers |
Executive standards | GB/T 26527-2011 |
Producer | China |
Quality guarantee period | 12 months |
Item | Inspection results |
Character | White to slightly yellow uniform emulsion liquid, without sediment or visible mechanical impurities |
Ph value | 6.5 |
Stability/mL | 0.47 |
Defoaming time/s (10 times) | 14.6 |
Defoaming time/s (100 times) | 28.36 |
Foam volume/ml (air drum 30min) | 143 |
Solid content a/% | 11.51 |
Item | Inspection results |
Character | Light yellow to colorless transparent liquid with no visible mechanical impurities |
Ion type | Nonionic |
Ph value | 6.3 |
Dispersivity | Disperse into emulsions, oil-free, and granular floats |
Defoaming performance (residual rate) | 0.365 |
Characteristics of Silicone liquid defoamer
1. Wide application range
Organosilicon defoamers dissolve uniformly in water, animal and vegetable oils, and high boiling mineral oils
2. Low surface tension
The surface ability of silicone oil with different viscosities is generally much smaller than the surface tension of foaming solution
3. Good thermal stability
Conventional silicone defoamer, can withstand 150 degrees Celsius for a long time and 300 degrees Celsius or above for a short period of time
4. Good chemical stability
Silicone oil has high chemical stability and is difficult to react with other substances
5. Physiological inertness
Silicone oil has been proven to be non-toxic to humans and animals, with a half lethal dose greater than 34 g/kg
6. Strong defoaming power
The silicone defoamer can not only effectively break the generated foam, but also significantly inhibit the foam and prevent the formation of foam
Application scenarios of Silicone liquid defoamer
1. Desulfurization and defoaming in power plants
In the current wet flue gas desulfurization in thermal power plants, the washing of limestone slurry results in a large number of foam, which affects the power generation efficiency of the power plant. For this situation, the common solution is to add an appropriate amount of defoamer to prevent the problem of virtual high liquid level caused by foam.
2. Wastewater treatment defoaming
Organosilicon defoamers can be applied to various water-based foaming systems such as urban wastewater, industrial wastewater treatment, papermaking wastewater, chemical wastewater treatment, petrochemical industry, seawater desalination, textile printing and dyeing wastewater, mining water treatment, etc.
3. Oil extraction defoaming
In the process of oil drilling, the drilling fluid is prone to foaming, which can seriously cause a decrease in its density and lubrication performance, greatly affecting the efficiency of the mud pump and causing difficulties in the circulation system. Based on various factors such as drilling fluid type, mineralization degree, pH value, rheology, and foaming agent type, organosilicon defoamers have successfully solved the problems of repeated foaming and difficult defoaming in gas field drilling fluid, as well as high cost of defoaming agent use.
4. Mixing and defoaming of mortar
Defoamer in mortar can inhibit the formation of foam and destroy the formed foam. The mechanism of action is that the defoamer enters the liquid film, reduces the viscosity of the liquid, forms a new low surface viscosity interface, causes the liquid film to lose elasticity, accelerates the process of liquid leakage, and ultimately causes the liquid film to thin and rupture.
Usage of Silicone liquid defoamer
1. It can be added directly to the original solution or in batches.
2. According to different usage scenarios, the amount of defoamer added ranges from 0.1% to 1%, and the dosage may vary as needed.
3. Before officially using this product, some samples should be taken for a simple trial to prevent abnormal situations and adverse consequences.
Packaging and Storage
1. This product is packaged in 25kg/barrel plastic drums.
2. This product belongs to non flammable and explosive materials. It should be stored in a cool and sheltered place, and kept tightly sealed.
During transportation, it is necessary to seal, moisture-proof, and prevent impurities such as strong acids, alkalis, and rainwater from entering.
