Application

  We cannot live without a variety of chemicals in our daily lives.   While washing, we can see a lot of foam, this foam adheres to the clothes or washing machine is very difficult to deal with.    Common cleaning products are:          - Powder Detergent          - Liquid Detergent          - Cleaning Agent           What will happen if these foams are not eliminated in time?    1. The foam on the surface will cause some erosion, resulting in a poor cleaning effect. 2. Too much foam will slow down the cleaning progress and lead to an increase in cleaning costs. 3. A large amount of foam will overflow the cleaning system, which will not only affect the surrounding environment, but also lead to waste. 4. The foam will be used a lot of water to wash, which wastes water resources.   Regardless of whether you are interested in foam control in liquid detergents, powder detergents, or cleaning agents or whether you would like to use antifoam agents as processing aids, ANTIFOAM is likely to have the right defoamers for your every need, which have the following features:   1. Fast defoaming speed, long suppression time, high efficiency, low dosage, and environmental protection. 2. Easy to disperse in water, and can be well compatible with liquid products with no demulsification and no oil drift. 3. Rapid defoaming and anti-foaming effect, and is well compatible with various additives.                                                                                                                                                         

Defoaming Machanism The main defoaming mechanisms include bridge-dehumidification, bridge-stretching and diffusion fluid entrainment. For polysiloxane defoamer, the defoamer mechanism are bridge-dehumidification and bridge-stretching mechanism. When the oil droplets of defoamer enter the surface of the foam film to form a lens shape, the bridge-dehumidification effect will occur. As the film thinns, this lens structure enters the opposite surface of the foam film and forms a bridge, which dehumidifies the film from the oil bridge by capillary force, causing the film to break and the bubbles to disappear. Through the bridging tensile action, oil droplets bridge the surface of the foam film to form an oil bridge. The oil bridge has a tensile effect under the traction of the water phase, which destroys the mechanical balance of the liquid film, makes the liquid film become unstable and breaks in the thinnest area, thus destroying the entire foam structure.   Precautions for the use of defoamer 1. Be insoluble or soluble hardly in the foaming liquid In order to burst the foam, the defoamer should be concentrated and concentrated on the foam. In the case of defoaming agent, it should be concentrated and concentrated in an instant, and in the case of defoaming agent, it should always be maintained in this state. Therefore, the defoamer is supersaturated in the foaming solution, and only being insoluble or soluble hardly is easy to achieve supersaturation. Insoluble or soluble hardly, it is easy to gather at the gas-liquid interface and concentrate on the foam, and it can play a role at a lower concentration. For the defoamer used in the water system, the molecule of the active ingredient must be strong hydrophobic and weak hydrophilic, and the HLB value should be in the range of 1.53 to have a good effect. 2. The surface tension is lower than the foaming solution Only when the intermolecular force of the defoamer is small and the surface tension is lower than that of the foaming solution, the particles of the defoamer can be immersed and expanded on the foam. It is worth noting that the surface tension of the foaming solution is not the solution's. 3. There is a degree of affinity with the foaming liquid Since the defoaming process is actually a competition between the foam collapse speed and the foam formation speed, the defoaming agent can be quickly dispersed in the foaming solution in order to quickly play a wider range of roles in the foaming solution. In order to make the defoamer diffusion faster, the active ingredient of the defoamer must have a certain degree of affinity with the foaming solution. The active ingredient of defoamer is too close to the foaming solution and will dissolve. If too sparse, it's difficult to disperse. The effectiveness is good only when the intimacy is right. 4. No chemical reaction with foaming liquid The defoamer reacts with the foaming solution. On the one hand, the defoamer will lose its ...

Electroplating Cleaning A large amount of foam is produced during electroplating cleaning. If the foam is not treated in time, it will cause pollution to the environment and reduce the cleaning efficiency and quality. In severe cases, it can cause damage to the human skin and respiratory system. The use of defoamer can quickly reduce the formation of foam. This can improve cleaning efficiency and quality, save costs and protect the environment.   Metal Cleaning In order to maintain the luster of metal and improve the durability of metal products, many industries often clean metal instruments or jewelry. The foam generated during the cleaning process will remain on the metal, affecting the service life of the product and shortening the service cycle. The use of defoamer can reduce the waste of water resources to a certain extent and improve the cleaning effect and quality.   Steel Plate Cleaning In the cleaning process of the steel plate, the use of defoamer to eliminate foam can not only have a certain degree of rust removal effect, but also improve the gloss and cleaning effect of the steel plate.   Beer Bottle Cleaning Beer bottles are products that can be recycled. After recycling, if foam is left behind during the production process, bacteria and mold can grow inside the beer bottle. It affects people's health and reduces cleaning efficiency. The use of defoamer can solve the foam problem and reduce the cleaning cost. It also allows beer bottles to be cleaned more regularly and safely.   Spray Cleaning Spray cleaning is a kind of chemical cycle cleaning, and the foam generated by the high-speed operation of the machine will affect the cleaning of the industry and cause environmental pollution. The use of defoamer can improve the cleaning process and save water.   Nanjing ANTIFOAM can provide you the defoamers with a better quality, wider range of use, and higher safety. Fast defoaming and long-lasting foam suppression performance can help customers solve problems. Please contact us anytime if you need.

Alumina is a white solid insoluble in water, and is also called bauxite in the mining, ceramic industry and materials science. It belongs to amphoteric oxides, soluble in inorganic acid and alkaline solution, relative density 4.0, the melting point of about 2000℃. Industrial alumina is the dehydrated product of various oxidation hydrates by thermal decomposition, and they form a series of homogeneous crystals, some in the dispersed phase, some in the transition state.   Reasons for foaming in the production of alumina Bauxite ore has a high silicon content, and in order to improve the content of alumina, flotation agents are generally added in the flotation process, resulting in a large number of organics which has surface-active substances, then will cause a large number of foams in the slurry during the decomposition process, thus seriously affecting the yield and quality of alumina. Moreover, in the modified Bayer process of alumina production, due to chemical reactions and external agitation, a large number of bubbles are easily produced in the alumina solution system. These foams will seriously affect the efficiency of the evaporator and reduce the flow of materials, resulting in a reduction in the decomposition efficiency of the machine, and more seriously it will affect the operation of the machine and the quality of the product.     Alumina defoamer is a kind of refined non-silicon emulsion, which is a milky white or transparent liquid in appearance. It has strong defoaming and antifoaming ability, and can withstand high temperature and high pressure and strong acids and alkalis. Adding a small amount of alumina defoamer to the foaming system helps to make the alumina hydroxide better achieve crystal transformation at high temperature, maintain the balance of liquid amount in the circulation system, and evaporate and concentrate to meet the requirements of the Bayer process slurry. The defoamer can also effectively improve the quality of alumina, and has no adverse effects on bauxite dissolution, red mud sedimentation, aluminate solution decomposition, mother liquor evaporation and other processes. In the process of alumina production, the defoamer will not undergo hydrolysis, and long-term work will not affect their foam inhibition. In addition, it can also improve the purity of the overflow liquid during the separation of red mud.