C525

Product Details

CasNo： 9016-00-6

MF： (C2H6OSi)n

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/drum

Purity： 99%

1. Basic Information

(1) Product Name

Defoamer

(2) Brand Model

C525

(3) Packaging Specification

25 kg/blue barrel. The blue plastic barrel is made of durable material and has good sealing performance, which can effectively prevent the product from volatilizing and leaking during transportation and storage. Meanwhile, it is convenient for handling and storage, meeting the needs of production enterprises of different scales.

(4) Main Ingredient

The core ingredient is organosilicon, with polysiloxane as the key active substance, and various additives such as dispersants and stabilizers are added. Through a special compounding process, the components fully cooperate to form a stable and efficient defoaming system. Relying on the unique low surface tension characteristic of polysiloxane, it can quickly play the role of defoaming and foam inhibition.

2. Product Characteristics

(1) Physical Properties

• Appearance: Usually appears as a colorless to light yellow transparent or translucent liquid, with uniform texture, no visible impurities to the naked eye, and good fluidity. It is convenient for pipeline transportation or manual addition during the production process and can quickly integrate into different production systems.
• Density: Approximately 0.9 - 1.1 g/cm³, which is similar to the density of most aqueous systems and some oily systems. This allows the defoamer to disperse naturally after addition, and uniform mixing can be achieved without excessive stirring, ensuring the stable performance of the defoaming effect.
• Solubility: It has excellent water solubility and can quickly dissolve with water and most aqueous solvents; it also has a certain solubility in some oily systems and can adapt to a variety of complex production environments.
• Flash Point: Higher than 100°C, it is a low-flammability product, which is relatively safe during storage, transportation and use, and can effectively reduce safety risks such as fire.
• Transparency: It has high transparency. During use, it will not significantly affect the appearance color of the product, and is especially suitable for production scenarios with transparency requirements, such as the production of cleaning agents and inks.

(2) Chemical and Application Properties

• High-content Replacement Advantage: It can replace product 3168, and its own content is higher than that of 3168. Under the condition of achieving the same defoaming effect, the addition amount of C525 may be relatively less, which can effectively reduce production costs.
• Alkali Resistance: It has good alkali resistance and can withstand the alkaline environment of 3% caustic soda. In alkaline production links such as papermaking and printing and dyeing, it can still maintain stable defoaming and foam-inhibiting performance and will not fail due to alkaline conditions.
• High-temperature Stability: It can withstand a high temperature of 130°C. In some high-temperature production processes, such as high-temperature printing and dyeing and chemical distillation, it can continue to play a defoaming role to ensure that the production process is not disturbed by foam.
• Wide Compatibility: It has good compatibility with various systems such as metal cleaning fluids, circuit board cleaning agents, textile auxiliaries, cutting fluids, inks, and coatings. It will not chemically react with other components in the system, nor will it cause phenomena such as precipitation and delamination, ensuring the stability of the production process and product quality.

3. Action Principle

(1) Defoaming Process

When defoamer C525 is added to a system containing foam, polysiloxane molecules quickly adsorb to the gas-liquid interface of the foam due to their extremely low surface tension, replacing the original surface-active substances and destroying the elasticity and stability of the foam liquid film. The imbalance of the surface tension of the foam liquid film makes the liquid film gradually thin, and finally breaks under the action of external disturbance or its own gravity, thereby achieving rapid defoaming.

(2) Foam-inhibiting Process

After defoaming, some polysiloxane molecules will remain in the system, forming a very thin protective film. This protective film can prevent new bubble nuclei from gathering and growing. When factors that may cause foam generation appear in the system, such as stirring and gas introduction, the protective film will adsorb first to inhibit the generation of foam and play a role in long-lasting foam inhibition.

4. Applicable Scenarios

(1) Cleaning Industry

• Metal Cleaning: In the cleaning processes such as degreasing, oil removal, and rust removal of metal parts, it can effectively eliminate foam generated by the reaction of cleaning agents with oil stains and mechanical stirring, ensure that the cleaning fluid can fully contact the metal surface, improve cleaning efficiency and cleanliness, and avoid foam overflow from affecting the working environment.
• Circuit Board Cleaning: In the production process of circuit boards, when removing impurities such as solder dross and oil stains on the surface, it can inhibit the generation of foam during the cleaning process and prevent foam from remaining in the holes and gaps of the circuit board, which affects the performance and quality of the circuit board.

(2) Oil and Gas Industry

In the desulfurization link in the process of oil and gas extraction and processing, it inhibits foam generated by chemical reactions, gas escape, etc., ensures the normal operation and desulfurization efficiency of desulfurization equipment, reduces the interference of foam on subsequent processes, and improves the quality of oil and gas products.

(3) Water Treatment Industry

• Neutralization Treatment: In the acid-base neutralization process, it controls the foam generated by the acid-base reaction, ensures the smooth progress of the neutralization reaction, and avoids the foam from affecting water quality detection and treatment effects.
• Biological Treatment: In the biological aeration link of sewage treatment, it eliminates foam generated by microbial metabolic activities, maintains the normal operation of the aeration system, and ensures the activity of microorganisms and treatment effects.
• Drainage Link: It prevents foam generated by water flow impact, gas release, etc. during the drainage process, ensures the smooth flow of drainage pipes, and avoids environmental pollution caused by foam overflow.

(4) Textile Industry

• Use of Textile Auxiliaries: In the textile printing and dyeing process, it eliminates foam generated by the addition of textile auxiliaries (such as penetrants, softeners, etc.), so that the auxiliaries can act on the fabric evenly and improve the dyeing effect and hand feel of the fabric.
• Normal Temperature Dyeing: In the normal temperature dyeing process, it effectively inhibits the generation of foam and prevents the foam from affecting the uniform distribution of dyes, ensuring the uniformity and color brightness of dyeing.
• Grinding Stage: In the grinding process of textile slurries, inks, etc., it eliminates foam generated by mechanical stirring and improves the fineness and quality of ground products.

(5) Other Industrial Fields

• Cutting Fluid: In the metal processing process, it is used in the cutting fluid system to control foam generated by high-speed cutting, emulsion circulation, etc., maintain the good lubricating, cooling, and rust-proof performance of the cutting fluid, protect the service life of tools, and improve the processing accuracy and surface finish of workpieces.
• Cleaning Agent: In the production and use of various industrial cleaning agents, it inhibits the generation of foam, ensuring the cleaning effect and use stability of the cleaning agent.
• PCB Cleaning: In the cleaning process of printed circuit boards (PCB), it effectively eliminates foam and ensures the smooth progress of the cleaning process, improving the quality and reliability of PCB boards.

5. Usage Methods and Precautions

(1) Usage Methods

• Addition Amount: Generally, the addition amount is 0.05% - 0.3% of the total amount of the treatment system. The specific addition amount needs to be adjusted according to different application scenarios and the severity of foam. For example, it can be added at 0.1% - 0.2% in metal cleaning; and at 0.05% - 0.1% in cutting fluid. It is recommended to determine the optimal addition amount through small-scale tests to achieve the best defoaming and foam-inhibiting effects.
• Addition Method: The defoamer can be slowly added directly to the system that needs defoaming while stirring to ensure that the defoamer can be quickly and evenly dispersed; it can also be diluted 5 - 10 times with an appropriate amount of water or system solvent first, and then evenly added dropwise to the system. For continuous production processes, it is recommended to use a metering pump for continuous addition to ensure the stability of the defoamer concentration.

(2) Precautions

• Storage Conditions: It should be stored in a cool, dry, and well-ventilated warehouse, avoiding direct sunlight and high-temperature environments. The recommended storage temperature is controlled at 5 - 35°C. During storage, the packaging barrel should be kept sealed to prevent the product from volatilizing and getting damp and deteriorated. The shelf life of unopened products is 12 months, and it is recommended to use them up within 6 months after opening.
• Safety Protection: It is recommended to wear rubber gloves and safety glasses during operation to avoid direct contact with the skin and eyes. If it accidentally contacts the skin, it should be rinsed with plenty of water for 15 minutes immediately; if it enters the eyes, it should be rinsed with plenty of water immediately and seek medical attention in time.
• Compatibility Taboo: Avoid direct mixing with strong oxidants, strong acids, and other substances. Before using it with a new system or chemicals, it is recommended to conduct a small-scale compatibility test first to observe whether phenomena such as delamination, precipitation, and discoloration occur within 24 hours. Large-scale use can be carried out only after confirming that there are no adverse reactions.