AFE-0120

Product Details

CasNo： 9016-00-6

MF： (C2H6OSi)n

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 100%

1. Basic Information

• Brand & Model: AFE-0120 (LDC120A)
• Product Type: Silicone emulsion antifoam, specially designed for high-foam scenarios in industrial fields. It combines high-efficiency defoaming performance with system adaptability and can be stably applied in complex processes such as polymerization reactions and wastewater treatment.
• Packaging Specification: 200 kg/barrel. It adopts high-strength sealed packaging, which is suitable for the procurement and storage needs of large-scale industrial production, reduces the frequency of frequent replenishment, lowers logistics and management costs. At the same time, the sealed design can prevent emulsion leakage or moisture deterioration.
• Core Composition: Silicone emulsion, with polydimethylsiloxane as the active main body, combined with special emulsifiers and stabilizers to form a uniform and stable emulsion system. The low surface tension of silicone molecules can quickly destroy the foam structure, and the emulsifier improves the dispersibility of the product in different systems such as water-based and oil-based, ensuring uniform and long-lasting defoaming effect.

2. Product Characteristics

• Dual Functions of Efficient Defoaming and Foam Suppression:
  • Fast defoaming speed: The silicone emulsion can quickly penetrate the surface of the foam film, destroying the elasticity and stability of the film, and can eliminate a large amount of stubborn foam within 1-3 minutes. It is suitable for emergency treatment of "instantaneous large-scale foaming" in high-speed reaction scenarios such as ABS manufacturing and rubber polymerization.
  • Long foam suppression cycle: The protective film formed in the system can continuously inhibit the generation of new foam, reducing the frequency of defoamer replenishment during the process. For example, in the MBR (membrane bioreactor) water treatment process, a single addition can maintain a stable foam suppression effect for 8-12 hours.
• Strong Process Adaptability:
  • Excellent temperature and chemical resistance: It can maintain emulsion stability in the temperature range of -10℃~80℃ and the acid-base environment of pH 3~11 without delamination or demulsification. It is suitable for the medium and high temperature reaction (60-70℃) of ABS polymerization and the complex acid-base conditions of wastewater treatment.
  • Low interference: It has good compatibility with the polymerization system of ABS plastic, SBR rubber and MBR membrane modules. It will not chemically react with monomers (such as styrene, butadiene), nor will it adhere to the membrane surface to affect water treatment flux, and will not reduce the mechanical properties and appearance quality of end products (such as ABS plastic).
• Easy Operation and Dispersion:
  The emulsion form makes it unnecessary for complex pretreatment. It can be directly added to the foaming system under stirring, or diluted 5-10 times with process water before adding, and can be quickly and uniformly mixed with the system to avoid defects such as "fish eyes" and "spots" caused by excessive local concentration.

3. Application Fields

• Plastics Industry (ABS Manufacturing):
  In the emulsion polymerization process of ABS resin, it eliminates a large amount of foam generated by monomer stirring and initiator reaction, prevents the volume expansion and uneven heat transfer of the polymerization system caused by foam, and avoids affecting the molecular weight distribution and particle uniformity of the resin, thereby improving the impact strength and processing fluidity of ABS plastic.
• Rubber Industry (SBR Production):
  It is used in the emulsion polymerization and monomer removal process of styrene-butadiene rubber (SBR). It controls the foam in the polymerization reactor and reduces the waste of raw materials caused by foam overflow; in the monomer removal stage, it eliminates the foam generated during the vacuum devolatilization process, ensures the monomer recovery rate, and reduces the pressure of environmental protection treatment.
• Water Treatment Field (MBR Process):
  For the foam generated by the metabolic process of activated sludge microorganisms and the aeration process during the operation of MBR membrane bioreactor, it can effectively eliminate the foam and inhibit its regeneration, prevent the foam from adhering to the membrane surface and causing membrane pollution and flux decline, prolong the service life of membrane modules, and reduce the frequency of backwashing and operation and maintenance costs.
• General Industrial Wastewater Treatment:
  It is suitable for wastewater treatment systems in chemical, printing and dyeing, food processing and other industries. It eliminates foam generated by the addition of chemicals (such as flocculants, oxidants) and aeration stirring, avoids the overflow of pollutants carried by foam from the treatment tank, and improves the efficiency and compliance rate of wastewater treatment.

4. Usage Methods

• Adding Timing: It is recommended to add preventively at the initial stage of the process or before foam is generated. If a large amount of foam has been generated, it can be added in small amounts 2-3 times to avoid local instability of the system caused by adding a large amount at one time.
• Adding Amount: Adjust according to the severity of foam and the total amount of the system. The conventional recommended addition amount is 0.05%~0.3% (based on the total mass of the system):
  • ABS/SBR polymerization system: 0.1%~0.2% is recommended, and it should be added at a constant speed within 30 minutes after the start of the polymerization reaction;
  • MBR water treatment: 0.05%~0.1% is recommended, and it is continuously injected into the inlet end of the aeration tank through a metering pump;
  • Industrial wastewater treatment: 0.1%~0.3% is recommended, and it is added in batches before the wastewater enters the reaction tank.
• Precautions:
  • Avoid direct mixing with strong oxidants (such as sodium hypochlorite), and add them separately at intervals of more than 30 minutes;
  • Clean process water or deionized water should be used for dilution to avoid impurity pollution affecting the defoaming effect.

5. Storage Conditions

• Environmental Requirements: Store in a cool, dry and ventilated warehouse, avoid direct sunlight, high temperature (maximum storage temperature not exceeding 35℃) and low temperature freezing (minimum storage temperature not lower than -5℃) to prevent emulsion delamination or demulsification.
• Shelf Life: Under unopened conditions and stored according to the above conditions, the shelf life is 18 months (specifically subject to the production date marked on the product packaging).
• Post-Opening Treatment: After opening, it needs to be sealed immediately. After each use, the barrel lid should be closed tightly in time to avoid water evaporation or external impurities mixing. It is recommended to use it up within 3 months after opening.