defoamer-antifoam

What is a defoamer / deaerator’s purpose in the system? Defoamers prevent formation of foam during manufacture and application of coatings and printing inks. Foam that is already formed is destroyed and air occlusions are prevented. Deaerators prevent development of air occlusions and pinholes. Why use a defoamer? The occurrence of foam is considered an undesirable but unavoidable phenomenon in coatings and printing inks. The formation of foam interrupts production processes, reduces the effective volumes in the production plant, and leads to unnecessary down time. Foam also interferes with the application process. In printing, foam can cause the ink reservoirs to overflow and can impair ink transfer from the printing cylinder to the substrate. Dried foam leaves surface defects in the paint film. To prevent foam and destroy any foam present, defoamers must be added to the formulation. defoamer vs. deaerator? To eliminate macro-foam on the surface, to prevent air occlusions, and...

Why should use defoamer for liquid detergent? Detergent is a new laundry detergent after detergent and soap. I believe many people have misunderstood laundry detergent. They think that the foam in laundry detergent is getting better and better. Actually it is not, whether it is laundry detergent or detergent. It is not to determine the cleaning ability by looking at the amount of foam, and too much foam, not only clothes are difficult to clean, but the foam that is discharged is also difficult to be decomposed by nature, so the laundry liquid produced by general manufacturers will use laundry liquid defoamer. The difference between laundry detergent and washing powder: ²   The surface active ionic components are different, the laundry detergent is non-ionic, and the laundry powder is anionic surfactant ²   The PH value is different. The laundry detergent is neutral, while the detergent is alkaline. Foam introduction of laundry liquid: The cleaning ability of the ...

How to choose defoamer for industrial cleaning? Beer bottle cleaning defoamer In the cleaning of beer bottles, defoamers are generally required to be resistant to high temperatures and strong alkalis, and solid defoamers are used more often. It is recommended that you can choose solid silicone defoamers. The carrier is easy to dissolve the antifoaming agent. If the carrier is relatively poor and difficult to dissolve, then precipitation will occur and the effect will be affected. Circuit board cleaning defoamer Circuit board cleaning and defoaming agents are mainly used in two processes, one is development, and the other is film / etching. The process is different and the products selected are different. Generally, a little more silicone defoamer is selected during the development stage, and the cost performance is outstanding. However, at the time of the film / etching stage, non-silicon products must be considered at this time. Circuit board cleaning and defoaming agent is ma...

Silicone is so widely used! Let's learn silicone oil production technology Silicone oil is a kind of linear small molecule silicone polymer with Si-O-Si as the main chain and organic groups in the side chain. It is widely used in textile, daily chemical, mechanical processing, chemical, electrical and electronic, medical and health, etc. industry. Silicon oil is usually kept in a liquid state at room temperature. As the molecular weight increases, the viscosity also increases, so viscosity is an important physical property index of silicone oil. 2017 China's silicone oil consumption situation Classification of silicone oil Silicone oil is generally divided into two categories: general silicone oil and modified silicone oil. There is also a class of co-modified silicone oils and derivatives - ternary modified silicone oil Silicone oil properties Silicone oil is generally a colorless, odorless, non-toxic, non-volatile liquid with the following characteristics...

China Silicone new construction and expansion projects are summarized! These companies have to expand production! Silicone monomer intermediate Enterprise: Wynca Group Project:  300,000 tons of organosilicon monomer chlorine resource comprehensive utilization project Venue:  Zhenjiang New Material Industrial Park, Zhenjiang City, Jiangsu Province Total investment:  about 1.12 billion yuan Details:  150,000 tons / year of organic silicon monomer, 0.5 million tons / year of hydrogenated silicone oil, 50,000 tons / year of raw rubber, 50,000 tons / year 107 glue. Construction started at the end of October 2017 and is expected to be completed by the end of December 2019. After the project is put into production, the base will become one of the most complete and largest integrated silicon production bases in China's industrial chain. The Wynca silicone monomer will also reach 550,000 tons, making it the largest silicone producer in Asia. Enterprise: Hoshine sili...

Three tips for testing viscosity of defoamer/antifoaming Many customers make certain demands on the viscosity of the Defoamer when purchasing the product, but the different supplier has different standard, how to check the authenticity of the corresponding viscosity coefficient? Now let Invely help you. Temperature affects viscosity The temperature will affect defoamer viscosity seriously.the viscosity of viscosity of defoamer will be relatively higher in winter under normal circumstances, but the viscosity of the defoamer will be lower in the summer. In this case, if you test the viscosity of the defoamer, you must pay attention to the room temperature. It is recommended that you try to keep the room temperature at about 23 degrees when testing the viscosity. This will ensure the uniformity of the viscosity test. Speed Viscosity Tester or Mechanical Viscosity Tester? Many customers will encounter such a problem when testing the viscosity of defoamer. which one is better?Spe...

Effect of fumed silica addition on tensile strength and hardness of RTV silicone rubber Fumed silica is a very effective reinforcing filler for RTV silicone rubber and can significantly increase its strength. This aspect is due to the small size effect of the fumed silica particles and the large specific surface area; on the other hand, because the surface contains many silicols, the particles can form a network structure through the interaction of hydrogen bonds and van der Waals forces, while silica The particles also interact strongly with the silicone molecules, improving interfacial adhesion. The smaller the particle size of fumed silica, the larger the specific surface area, the larger the contact surface between the particles and the rubber compound, and the more bonding points, the better the reinforcing performance for RTV silicone rubber, the tensile strength, tear strength and resistance of the vulcanized rubber. The abrasiveness and hardness are also high, but at the same...

What is pesticide additives and why should use defoamer for pesticide production? Pesticide additives are auxiliary substances added to the processing or use of pesticide preparations and used to improve the physical and chemical properties of pharmaceuticals, also known as pesticide adjuvants. The auxiliaries themselves are essentially free of biological activity, but can affect the control effect. With the wide use and development of pesticide additives, its variety is also increasing, so the choice of such additives has become the second biggest choice for farmers to choose pesticides. 1. Auxiliary agent to help disperse the original drug Filler and carrier A solid inert mineral, plant or synthetic material added to a solid pesticide formulation for the purpose of adjusting the finished product content or improving the physical state. The filler is used to dilute the original drug to increase the dispersibility of the original drug, and the carrier also has the function of a...

High temperature overflow printing and dyeing defoamer Defoamer for textile can workable at over 100 ℃？ yes or no? Printing and dyeing process: Raw cloth preparation → Singeing → Refining → Bleaching → Setting → Satinization → Dyeing and printing →Finishing. Here will show INVELY-6200 which is workable over 100 ℃ with good performance. Desizing The main role of desizing: remove slurry as much as possible, creating favorable conditions for subsequent processing. Common alkali desizing principle: The slurry swells under the action of hot alkaline solution, from the gel state to the sol state, and becomes loose with the fiber, which is easy to wash off. Foaming occurs more during desizing, and the application of defoaming agents is mainly concerned with the pH and temperature of the foaming environment. INVELY-6200 is recommended when the temperature is higher than 90 ° C.  Dyeing According to the temperature can be divided into: normal temperature dyeing (room tempe...