Silica sol is a colloidal solution, odorless and non-toxic. Silica sol is a dispersion of nano-scale silica particles in water or solvent. Since the SiO2 in the silica sol contains a large amount of water and hydroxyl groups, the silica sol can also be expressed as SiO2.nH2O.Silica sol inorganic polymer coatings have been developed in recent years. The key technology for preparing the coating isSilica solUse a special method to remove the water-soluble sodium ions in the water glass. Generally, ...

Silicone rubber waterproof coatings are emulsion-type waterproof coatings prepared by mixing silicone rubber emulsions and other high molecular polymer emulsions as the main raw materials, mixing appropriate chemical additives and fillers, etc., and uniformly mixing them. The coating has good permeability, film-forming properties, water resistance, elasticity, adhesion, high and low temperature resistance, etc., and can be used for construction operations on dry or wet bases without clear water. ...

There is no unified understanding of the mechanism of defoaming agents. According to the mechanism of defoaming agents proposed by the predecessors, there are roughly the following:A general defoaming mechanismTypical general defoaming mechanisms are Robinson defoaming mechanism and Ross hypothesis. The Robinson mechanism is the basis of the Ross hypothesis. It mainly emphasizes the drainage of defoamers to destroy the foam and the Marangoni effect to achieve defoaming; the Ross hypothesis is ca ...

Silica gel can be used as a desiccant and can be reused. Silica gel is a porous material with different particle sizes formed by proper dehydration of silicic acid gel mSiO2·nH2O. It has an open porous structure with a large specific surface (surface area per unit mass) and can adsorb many substances. It is a good desiccant, adsorbent and catalyst carrier. The adsorption of silica gel is mainly physical adsorption, which can be regenerated and reused. Add acid to the alkali metal silicate (such ...

Silica gel is polysilicon bai oxane rubber, polysiloxane used to be called silicone, the main chain structure of du is zhiSi-O-Si structure, silicon atoms are connected by oxygen dao atoms, and at least one organic group is connected. In 1940, Dr. Eugene RoChow made a major breakthrough in technology research and development. It was the earliest elemental polymer used in the industrial field. It has been widely used and developed due to its green environmental protection characteristics.Polysilo ...

Coupling agent is a kind of substance with two functional groups with different properties. The biggest feature of its molecular structure is that the molecule contains two groups with different chemical properties. One is an inorganic-philic group that easily reacts with the surface of inorganic substances. The other is an organophilic group, which can chemically react with synthetic resins or other polymers or generate hydrogen bonds to dissolve them. Therefore, coupling agents are called &quo ...

The defoamer must be able to spread quickly on the surface of the foam and be able to penetrate quickly to make the foam burst quickly. The commonly used types of defoamers are silicones and polyacrylates.Silicone defoamers are usually of the polysiloxane type. For example: polydimethylsiloxane containing acrylate functional group and polyether modified polydimethylsiloxane, etc. Silicone has high temperature resistance, low temperature resistance, stable physical properties, chemical inertness, ...

There was a saying on the Internet that 90% of shampoos contain an ingredient called "polydimethylsiloxane", which is the so-called silicone oil smoothing agent. Rumors say that because this chemical substance of silicon or dimethylsiloxane fills the gaps between the hair scales, the hair is very smooth after washing, but due to the impermeability and inertness of silicon, it will Clog the pores, it is easy to make the scalp itchy, even hair loss, hair loss, etc. Let us know some commo ...

Resin usually refers to an organic polymer that has a softening or melting range after being heated, and has a tendency to flow under the action of external force when softened. It is a solid, semi-solid, or liquid organic polymer at room temperature. Broadly speaking, any polymer that can be used as a raw material for plastic products processing is called a resin.Plastic refers to a material that uses resin (or directly polymerized with monomers during processing) as the main component, and add ...

Dear new and old customers:In the season of golden osmanthus, we are about to celebrate the 71st anniversary of the founding of the People’s Republic of China. In accordance with the spirit of the "Notice on the National Day Holiday Arrangements in 2020" of the General Office of the State Council, the notice of the 2020 National Day holiday arrangements is as follows:From October 1st to October 8th, it will be closed for a total of 8 days.Work as usual on Friday, October 9.It coincide ...