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You should know that different foaming systems require different defoamers. For example, the temperature of the foaming system will affect the use of defoamers. In a high-temperature foaming environment, the use of ordinary defoamers may cause the defoaming effect to fail because the temperature is too high. In this case, special products should be used. The high temperature resistant defoamer too.The emergence of high temperature resistant defoamers is mainly due to the fact that in the past fo ...
Among the wide variety of softeners, silicone additives have attracted more and more attention due to their unique surface properties and excellent softening properties. Most domestic fabrics finished with silicone softeners are hydrophobic, which makes the wearer feel stuffy and difficult to wash. Many products often show demulsification and bleaching. The traditional hydrophilic polyether silicone oil has better hydrophilicity and water solubility, but its flexibility and finishing effect are ...
1. Coke core (the temperature of the reaction center exceeds the antioxidant temperature of the raw material)(1) The quality of polyether polyols is problematic: the moisture in the product exceeds the standard during the production, storage and transportation, the content of peroxides and low-boiling impurities is too high, the concentration of metal ions is too high, and the type and concentration of antioxidants are inappropriate;(2) Formula: In the low-density formula, the TDI index is too h ...
The surface activity of the foaming agent The foaming agent is a surfactant, and its surface and interface properties are important indicators. The surface tension and interfacial tension of the foaming agent should be measured first. Since the injected formation is a gas-liquid two-phase, it is necessary to measure the surface tension and interfacial tension of the mixed solution injected into the formation and the vapor-condensed aqueous solution. The measurement method may be carried out by t ...
Silicone oil, as a common ingredient in cosmetics and skin care products, has a "false slippery" effect compared to hair care products. There are more types of silicone oil in cosmetics and skin care products, and its effects on the skin are also more amazing.About Silicone OilSilicone oil is also translated as silicium, because its structure is stable, non-toxic, not prone to degradation and not prone to chemical reaction with other products, so it is now more and more used in various ...
Organosilicon compounds contain the Si-0 skeleton of silicon-oxygen bonds. All or-part of the silicon atoms are combined with organic groups, such as methyl and phenyl. The surface tension of organosilicon is very small. Adhesives are difficult to adhere to. Therefore, the paper industry takes advantage of this feature and uses organosilicon compounds as release agents to produce release paper. The organosilicon compound used in the peeling paper must meet the conditions of good peeling performa ...
Silicone oil is generally colorless (or light yellow), odorless, non-toxic, and non-volatile liquid. Silicone oil is insoluble in water, methanol, glycol and -ethoxyethanol. It is miscible with benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene. It is slightly soluble in acetone, dioxane, ethanol and butanol . It has a small vapor pressure, a higher flash point and ignition point, and a lower freezing point. As the number of segments n is different, the molecular weig ...
There are many types of polysiloxanes, which are mainly divided into three categories according to the chemical structure and properties of the products:SiloxaneSiloxane (2 photos)â‘ Silicone oil (modified silicone oil) is a low molecular weight (generally less than 10,000) linear structure polymer. In order to achieve certain properties, the molecular structure will also be grafted and modified. Colorless or light yellow transparent liquid, water-repellent and oil-repellent, with high boiling po ...
Polyurethane foaming agent is the product of cross combination of aerosol technology and polyurethane foam technology. There are two kinds of spongy states in the pipe type and gun type. Styrofoam is used as a foaming agent for the production of microcellular foams. It can generally be divided into physical and chemical types. This is based on whether the production of gas is a physical process (that is, volatilization or sublimation) or a chemical process (that is, chemical structure). Damage o ...
Food products defoamers are mostly used in the food processing industry. They are only produced under the strict control of domestic food product silicon residues and strict control of various standards. In short, it can produce effective food processing It has defoaming and anti-foaming effects, but does not affect the taste and quality of food. It is a product that helps food improve the utility value.It has the unique advantages of not affecting the taste of the product, rapid defoaming, long ...