What is silicone rubber. How is silicone rubber classified?Silica gel is a kind of highly active adsorption material, which is an amorphous material. It contains polysiloxane, silicone oil, silica, coupling agent and filler. The main component is silica, and its chemical formula is msio2 nH2O. Insoluble in water and any solvent, non-toxic and tasteless, stable chemical properties, no reaction with any substance except strong base and hydrofluoric acid. Different types of silica gel have differen ...

Technical fieldThe invention relates to a catalyst suitable for insulating impregnating varnish and a preparation method thereof. In particular, it refers to a solvent-free organic silicon insulating dipping varnish catalyst and a preparation method thereof. The preparation method of the catalyst is mainly used for preparing a solvent-free organic silicon insulating dipping varnish catalyst.Background techniqueInsulating impregnating varnish is a kind of insulating material, which is mainly used ...

 Design basis Basis of the research report[1] The current demand and development trend of C-level solvent-free organic silicon impregnating varnish at home and abroad;[2] C-level solvent-free organic silicon dipping paint project design and development proposal.[3] C-level solvent-free organic silicon impregnating varnish development and industrialization trial and pilot evaluation report;[4] The subject area of ​​the project: chemical science, polymer chemistry, polymer synthesis, c ...

In the formulation, the main functions of surfactants are: one is to improve the emulsifying ability between the components, so that they can be more effectively mixed with each other; the other is to control the system to have proper surface tension during the foaming process to produce a good Bubble network structure, therefore, can also be called foam stabilizer. Polyester and polyether flexible foam have different raw material bases and different properties. Therefore, the selection and dosa ...

OverviewSilane coupling agent is a kind of low molecular organosilicon compound with special structure. Its general formula is RSiX3, where R represents amino, mercapto, vinyl, epoxy, cyano and methyl propionyloxy groups. Groups, these groups and different matrix resins have strong reactivity, X represents a group that can be hydrolyzed, such as halogen, alkoxy, acyloxy and so on. Therefore, the silane coupling agent can not only interact with the hydroxyl in the inorganic substance but also wit ...

Pesticide adjuvant is the general term for various adjuvants used in chemical pesticide processing formulations in addition to active ingredients. The adjuvant itself has no biological activity, but has a synergistic effect. It can improve the efficacy, reduce the amount of pesticides, save costs, and reduce the pollution of pesticides to the environment. The synergistic effect of adjuvants on pesticides, especially herbicides, is mainly achieved by increasing the amount of pesticides on the pla ...

In the formulation, the main functions of surfactants are: one is to improve the emulsifying ability between the components, so that they can be more effectively mixed with each other; the other is to control the system to have proper surface tension during the foaming process to produce a good Bubble network structure, therefore, can also be called foam stabilizer. Polyester and polyether flexible foam have different raw material bases and different properties. Therefore, the selection and dosa ...

The oil-based glue defoamer is made of ether, fatty alcohol and multiple active additives through a special process. It is easy to disperse in water-based system, has strong self-emulsification, good defoaming, long-lasting foam suppression, and has special effects on water-soluble polymers and medium- and low-viscosity systems. It is especially suitable for latex-type water such as styrene-acrylic, ethylene-propylene, pure acrylic, vinyl acetate emulsion, and carboxyl butyl styrene. It has the ...

Curing is usually accomplished by condensation of silanols to form siloxanes. When the condensation reaction is in progress, due to the gradual decrease of the silanol concentration, the steric hindrance is increased, and the fluidity is poor, resulting in a decrease in the reaction rate. Therefore, in order to fully cure the resin, the reaction must be accelerated by heating and adding a catalyst. Many substances can catalyze the silanol condensation reaction, including acids and bases, soluble ...

 Surfactant and its propertiesSubstances that can significantly reduce the surface tension of water are called surfactants. In recent years, surfactants have developed rapidly, and their applications involve many fields, such as oil field development, daily chemical products, coatings, food, textiles, materials, etc. Surfactants have almost penetrated into all production and technical fields.Surfactants have two important properties. They are directional adsorption on various interfaces, an ...