Tianjin Shuangjixing Technology: chain plate anti-adhesive agent, glass wool rock wool stencil anti-adhesive agent, silicone oil emulsion, chemical fiber soft slip agent, cationic hydroxy silicone oil emulsion, hydroxy silicone oil emulsion, softener, water-soluble silicone oil, defoamer.










○ Emulsion. A large part of silicone oil or silicone oil-containing products are made into an emulsion form. Compared with solvent silicone oil, it has the advantages of being cheap, not easy to burn, and harmless to health. Different from the solvent type, all silicone emulsions are “oil-in-water” type (O/W type) heterogeneous systems. The external closed phase is the aqueous phase, and the silicone oil is dispersed in the water phase with very fine droplets. Dilute to the desired concentration with water for application. The stability of this emulsion can be achieved by minimizing the droplets and stabilizing effects of the emulsifier. A silicone oil emulsion based on methyl ethoxy silicone oil. These defoamers are made from methyl ethoxy silicone oil and a compounding agent.
Advantages of silicone defoamers


1, a wide range of applications:


Due to the special chemical structure of silicone oil, it is neither compatible with water or polar group-containing substances, nor with hydrocarbons or hydrocarbon-containing organics. Therefore, the silicone antifoaming agent is uniformly dissolved in water, animal and vegetable oils, and high-boiling mineral oil. Because silicone oil is insoluble to various substances, it is widely used, both using water system for defoaming and oil system.


Used in.


2, the surface tension is small:


Viscosity of silicone oil, its surface capacity is generally 20-21 dynes / cm, much less than the surface tension of water (72 dynes / cm) and general foaming liquid, which is also a wide range of silicone defoamers Another reason.


3, good thermal stability:


Taking the commonly used dimethyl silicone oil as an example, it can withstand 150 degrees Celsius for a long time, and can withstand 300 degrees Celsius or more in a short time, and its Si-O bond does not decompose, which ensures that the silicone defoamer can be used in a wide temperature range. use.






Hydroxy silicone oil is a non-toxic and non-polluting green product that has been widely used. However, the particle size and particle size distribution of cationic hydroxy oil emulsions are not sufficiently deep, and the particle size and particle size distribution of emulsions play an extremely important role in emulsion stability and performance. Microemulsion polymerization is a hot topic in recent years. How to use D4 as a raw material for microemulsion polymerization is a concern. Many foreign silicone products are produced by this method, but due to intellectual property issues, there are few reports on this aspect. Recently, reports on microemulsions with D4 as oil phase have begun to increase, and this is exactly the micro Prerequisites for emulsion polymerization. It can be seen that from the theoretical and industrial point of view, it is of great significance to study how to use D4 as raw material for microemulsion polymerization, which is also the development direction of hydroxyl silicone oil polymerization in the future. Product application: 1, as lubricant, used for extrusion rubber conveyor belt, textile machinery, etc.; 2, as release agent, used for demoulding of industrial parts such as rubber or plastic; 3, as defoamer, can be widely used In industrial defoaming, fermentation, food defoaming and so on.
4. Good chemical stability:


Since the Si-O bond is relatively stable, the chemical stability of the silicone oil is high and it is difficult to chemically react with other substances. Therefore, silicone defoamers are allowed to be used in systems containing acids, bases, and salts as long as they are formulated properly.


5. Physiological inertia:


Silicone oil has been shown to be non-toxic to humans and animals, with a semi-lethal dose greater than 34 g/kg. Therefore, silicone defoamers (with suitable emulsifiers) can be safely used in the food, medical, pharmaceutical and cosmetic industries.


6, strong defoaming power:


The silicone antifoaming agent not only effectively breaks the already formed foam, but also significantly suppresses the foam and prevents the formation of foam. It is used in a small amount, and as long as one part per million (1 ppm) of the foaming weight is added, a defoaming effect can be produced. Its usual range is from 1 to 100 ppm. This is not only low cost but also non-polluting.


Defoaming substance.


Since silicone defoamers have the above advantages, they are increasingly used in place of other types of defoamers, especially in the pharmaceutical, medical and food fermentation industries, which are unmatched by other types of defoamers. .






Dimethicone emulsion is non-ionic, stable, non-flammable, non-volatile, non-toxic, odorless, high temperature resistant, corrosion resistant, anti-oxidant, and can be diluted with water in any proportion. The emulsion is made of dimethyl silicone oil. After emulsification, it can be used in textile finishing to improve the smooth and soft hand feeling of the fabric. It can be used in the daily care shampoo to improve the lubricity of the hair; it is used to treat the rayon spinning head. It can eliminate static electricity and improve the quality of spinning. It can be used in cosmetics to improve the moisturizing and protective effect of cosmetics on the skin. In addition, dimethyl silicone oil emulsion can also be widely used in rubber, cosmetics, textile, demoulding, leather and other industries, and can play the role of waterproofing, lubrication, demoulding, etc. (antifoaming agent, mold release agent, polishing agent) , release agent). Warm water wash. When dyeing polyester blended fabrics, the dyes and additives used are many varieties, and can be washed at 40 ° C to facilitate the dissolution of residues contaminated on the fabric. Cellulose fiber is dyed by direct blending dye. If the overall color of the sample is darker than the sample, the color can be similar after washing with warm water, and the color fastness can be improved to a certain extent.