Main Ingredient: Organosilicon, with polysiloxane as the main structure. Due to its special molecular structure, it can effectively reduce the surface tension of liquids, thereby achieving defoaming and foam - inhibiting functions.
2. Product Characteristics
(1) Physical Properties
Appearance: Usually a colorless to light yellow transparent or translucent liquid with uniform texture and good fluidity, which is convenient for adding and mixing in the production line.
Density: Generally between 0.9 - 1.1 g/cm³, close to the density of water and most aqueous systems, which is conducive to uniform dispersion in the system.
Solubility: It has good dispersibility in aqueous media and can be quickly and evenly dispersed into the aqueous system, thus quickly exerting the defoaming effect.
Flash Point: Relatively high, generally greater than 100°C. During storage and use, the safety is relatively high, and it is not easy to cause dangers such as fire due to accidents.
(2) Chemical and Application Properties
Efficient Defoaming and Foam Inhibition: It can quickly eliminate the generated foam at both normal temperature and medium - high temperature, and has a long - term inhibitory effect on the subsequent generation of foam. For example, in the chemical distillation process, high temperature will cause a large amount of foam in the materials, and the C585 defoamer can defoam in time to ensure the stable progress of the distillation process.
Wide Adaptability: It has good tolerance to changes in acidity and alkalinity, and can maintain stable defoaming performance in a wide pH range (such as pH 3 - 12). At the same time, it can adapt to different temperature conditions and can effectively exert defoaming and foam - inhibiting effects in the temperature range of about 0 - 150°C, suitable for various complex working conditions.
Excellent Dispersibility: It can be quickly and evenly dispersed in various aqueous media systems, such as the pulp system in the papermaking process and the dye liquor system in textile printing and dyeing, ensuring that the defoaming effect can be exerted quickly and comprehensively throughout the system.
3. Action Principle
Reduce Surface Tension: The polysiloxane part in the organosilicon molecule will be quickly adsorbed to the gas - liquid interface of the foam, significantly reducing the surface tension of the foam liquid film, causing the foam film wall to become thinner and less stable, and finally rupture.
Destroy Foam Elasticity: Its molecules can penetrate into the foam film, disrupting the orderly arrangement of surfactant molecules in the foam film, destroying the elastic structure of the foam film, making the foam more likely to rupture when subjected to external disturbance or its own gravity.
Inhibit Foam Generation: In the system, organosilicon molecules will occupy the gas - liquid interface position where foam may form first, preventing foaming substances such as surfactants from accumulating at this position, thereby inhibiting the generation of new foam.
4. Applicable Scenarios
(1) Papermaking Industry
Pulp Preparation: In the links of pulp cooking, screening and bleaching, it effectively eliminates the foam generated by fiber dispersion and the addition of chemical auxiliaries, avoiding the foam from affecting the uniform distribution of fibers and improving the quality of paper.
Sewage Treatment: When treating papermaking wastewater, it can eliminate a large amount of foam generated during aeration and other processes, ensure the normal operation of sewage treatment equipment, and prevent foam from overflowing and polluting the environment.
(2) Cleaning Industry
Wine Bottle Cleaning: In the process of wine bottle cleaning, it quickly eliminates the foam generated by cleaning agents and mechanical stirring, improves cleaning efficiency, and avoids foam residue from affecting the quality of wine bottles.
Circuit Board Cleaning: It is used for circuit board cleaning, which can effectively eliminate the foam generated during the cleaning process, prevent the foam from damaging the circuit board components, and ensure the cleaning effect.
(3) Chemical Industry
Distillation, Extraction and Filtration: In the processes of chemical distillation, extraction and filtration, it inhibits the generation of foam, avoids the foam from affecting product quality and production efficiency, and ensures the smooth progress of the process.
Petroleum Processing: In the links of petroleum extraction, butadiene processing and desulfurization, it can effectively control foam and ensure production safety and product quality.
Water Treatment: In the processes of neutralization, biological treatment and drainage of water treatment, it eliminates foam and ensures the stable operation of the water treatment system.
(4) Textile Industry
Application of Textile Auxiliaries: In the process of using textile auxiliaries, such as the addition of dyeing auxiliaries and finishing auxiliaries, it eliminates the foam generated by the addition and stirring of auxiliaries, ensuring the dyeing and finishing effects of textiles.
Soaping Process: In the soaping process of textiles, it defoams quickly to prevent the foam from affecting the soaping quality and make the textiles cleaner.
(5) Daily Chemical Industry
Detergent Production: In the production process of detergents, it eliminates the foam generated by the addition and stirring of surfactants, facilitating production operations and product filling.
Softener Production: In the production process of softeners, it controls foam and ensures product quality and production efficiency.
5. Usage Methods and Precautions
(1) Usage Methods
Addition Amount: Generally, the addition amount is 0.05% - 0.5% of the total amount of the treatment system. The specific dosage needs to be determined through small - scale tests according to the severity of foam in actual production and the nature of the system.
Addition Method: The defoamer can be directly added to the production system, or diluted with an appropriate amount of water or other suitable solvents before addition. To ensure that the defoamer can be evenly dispersed, it is recommended to add it slowly under stirring.
(2) Precautions
Storage Conditions: It should be stored in a cool, dry and ventilated warehouse, avoiding direct sunlight and high temperature. The storage temperature should be controlled at 5 - 35°C. After opening, it needs to be sealed in time to prevent the product from volatilizing or deteriorating.
Safety Protection: It is recommended to wear rubber gloves and protective glasses during operation to avoid direct contact with skin and eyes. If it accidentally comes into contact with the skin, rinse immediately with plenty of water; if it enters the eyes, rinse immediately with plenty of water and seek medical attention in time.
Compatibility Taboo: Avoid direct mixing with strong oxidants, strong acids and strong alkalis. Before using it with a new system or chemicals, it is best to conduct a small - scale compatibility test first to confirm that there will be no adverse reactions such as precipitation, discoloration and reduced defoaming effect.
