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invely defoamer


Our Spring festival is coming in next week, Thanks for your supports, my friends, i hope you has great success in 2020! By the way: our office and factory will closed on next week, and will back to work on Feb, 03, 2020, However, you can contact me freely if anything, i will reply you whithin 24 hours. Below is my last shipment to Shanghai Port before our holiday! antifoam defoamer invelychem

https://www.ywlchemical.com/
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How do we assess antifoam efficiency ?

How do we assess antifoam efficiency ? Quality of an antifoam is given by two main characteristics : • Knockdown ability or shock effect :Meaning the speed to destroy an existing foam. • Persistence or durability : Meaning the efficiency over time.   These two parameters can be assessed by several tests. The main test is the bubbling method. A graduated column with a glass frit in the bottom is required. Foaming water is poured in the column and air at constant flowrate is introduced through the glass frit in the column. Foam is generated by the air and starts to travel up the column. At a determined level of foam, antifoam is injected. By this method several antifoaming agents can be tested. A graph reporting foam height vs time is very helpful to establish the knockdown ability and the persistence for each product. The selected antifoam is the product with the best compromise between shock effect and durability       Environmental performance   Silicone antifo...
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Silicone oil is so widely used! Let’s learn silicone oil production technology

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...
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invely-defoamers

Why Foam could be so inconvenient ? A light foam is generally not problematic in most applications however heavy foaming can often lead to various processing problems. These problems range from inaccurate readings from control and measuring equipment such as temperature, level and density controllers to poor mixing of reactants in chemical reaction vessels and products hanging in the foam, all too often leading to losses in production. Finally the presence of foaming can give a bad image of the way a process is operated in the eyes of a customer. The presence of foam in discharged effluent can cause complaints from local people and authorities even if the foam is harmless to people and the environment. How do silicone defoamers work ? Foam is a gas dispersion in a liquid or solid continuous phase. Foam iscreated by the surfactants which are at the air/liquid interface. Therefore air bubbles occur and are stabilised by the surfactants. Today, silicone antifoams are thebest solution to a...
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