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The Role of Defoamers -- 2021-09-17

The current theories about foam formation differ between defoaming and defoaming. The function of defoamer is to trap air at the interface. The function of the defoaming agent is to make the tiny air (microbubbles) dispersed in the coating film quickly rise to the surface after the coating process and the coating film are completed. However, it is often impossible to make this distinction clearly in practical applications. Antifoaming agents can also eliminate microfoam to some extent. The defoa ...

Mid-autumn Holiday Notice -- 2021-09-16

Dear customers:Greetings! When the Mid-Autumn Festival of 2021 is approaching, according to the "Announcement of the General Office of the State Council for the 20th Mid-Autumn Festival Holiday Arrangements", combined with the company's actual situation and work arrangements:First, we will arrange the Mid-Autumn Festival holiday as follows:1. Mid-Autumn Festival Holiday: There will be a three-day holiday from September 19th to 21st, and normal work will be held on September 18th.2. On ...

Application of Silicone Epoxy Resin -- 2021-09-14

Silicone epoxy resin is made by condensation of low molecular weight polymethylphenylsiloxane and bisphenol A epoxy resin in the presence of a catalyst.Light yellow to yellow uniform liquid, epoxy value 0.01~0.03mol/100g, solid content 50%. Viscosity (coating 4 cups, 25℃)≤30s. There are also solid organic silicon epoxy resins, yellow to brown solid, with a softening point of 60-80°C. The epoxy value is 0.25~0.35mol/100g. The epoxy resin adhesive is formulated with silicone epoxy resin, whic ...

Silicone Softeners are Widely Used in the Textile and Printing and Dyeing Industries. -- 2021-09-09

In recent years, the amount used has doubled. Among them, the amount of aminosilicone emulsion is the largest. For different styles of feel, such as resilience, waxiness, etc., modified silicone oils with other groups need to be developed . As a new type of organic silicon functional polymer compound, epoxy modified silicone oil has been widely concerned and used due to its own reactivity and high adsorption properties. The traditional preparation methods include: ①Prepared by emulsion polymeri ...

Introduction to the Classification of Silicone Surfactants -- 2021-09-07

Silicone surfactants are a type of surfactant composed of polydimethylsiloxane as its hydrophobic backbone and one or more organic silicon polar groups connected to the meta or terminal positions. According to the chemical properties of the hydrophilic group R in its chemical structure, silicone surfactants can be divided into four categories: anionic, cationic, nonionic, and zwitterionic. Among them, nonionic surfactants are the most studied. , The most widely used.1. Cationic silicone surfacta ...

Knowledge of Silicone Emulsion -- 2021-09-06

Silicone oil r is CH3, OH; R´, is CH3, H, etc. The oil content is generally 20% to 30%. The pH value is 6~8. Centrifugal stability (3000r/min) 15-30min. The surface tension is small, and the contact angle to water is large. Heat and oxidation resistance. It is prepared by emulsion polymerization of octamethylcyclotetrasiloxane in the presence of anionic surfactants such as sodium dodecyl sulfonate or cationic surfactants such as cetyltrimethylammonium bromide and a catalyst . It is a ...

Price Adjustment Notice -- 2021-09-03

Price Adjustment Notice Dear customers:First of all, thank you very much for your long-term support and trust in our company!Recently, the price of a variety of chemical raw materials has risen sharply for several consecutive times, which has had a serious impact on our production costs. Based on the principle of honest operation and win-win cooperation, the company has determined that since September 1, 2021, the various types of silicone oil sold by our company will increase by 10-20% on ...

Brief Introduction of Lubricating Oil Defoamer -- 2021-09-02

Product characteristics Lubricating oil defoamerLubricating oil defoamer is a special defoamer developed by introducing foreign technology and equipment according to the characteristics of machining fluids. It is mainly suitable for the defoaming of high temperature, strong alkali and high viscosity systems. The special defoamer for lubricating oil also overcomes the shortcomings of the incompatibility of general defoamers and emulsified oil, can be mixed with various lubricating fluids, and doe ...

Classification and Application of Wetting Agents -- 2021-09-01

A substance that can make solid materials more easily wetted by water. By reducing its surface tension or interfacial tension, the water can spread on the surface of the solid material or penetrate the surface, thereby wetting the solid material.Wetting agent is a surface active agent that can make solid materials more easily wetted by water by reducing its surface energy.Such as sulfonated oils, soaps, pull open powder BX, etc., soy lecithin, mercaptans, hydrazides and mercaptan acetals, etc. c ...

Introduction to the Application Fields of Silane Coupling Agents -- 2021-08-30

Silane coupling agent is a chemical agent mainly used for glass fiber reinforced plastics. The molecular structure of the silane coupling agent is generally Y-R-Si(OR)3 (where Y is an organic functional group and SiOR is a siloxy group). Siloxy groups are reactive to inorganic substances, and organic functional groups are reactive or compatible to organic substances. Therefore, when the silane coupling agent is between the inorganic and organic interface, a bonding layer of organic matrix-silane ...

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