Solvent-free impregnating varnish is widely used in the VPI insulation treatment of motor coils in high-end fields such as high-voltage motors, high-speed traction motors, and spacecraft engines. Silicone materials have the advantages of high temperature resistance and corona resistance, and are more suitable for insulation in the above fields deal with. With the continuous development of my country's high-speed railway, subway, light rail, and magnetic levitation technology, insulating material ...

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 ...

Bright, supple hair has always been a symbol of youth and vitality. However, with the aggravation of air pollution, the acceleration of the pace of life, and the increase in the frequency of dyeing and perming, the health of the hair continues to decline. Beautiful hair becomes dull, frizzy, fragile and difficult to comb. At the same time, it is easy to get tangled and knotted when shampooing. . How to repair damaged hair and restore the smoothness and luster of the hair has increasingly become ...

Application and selection of defoamers for water-based coatings. The water-based paint defoamer is a composite product of organic polyether ester, mineral oil, and alcohol. It will not produce surface defects or affect the film-forming properties, and has a special effect on the water-based paint system.product manualUsing water instead of organic thorns to prepare paint is safe, inexpensive and hygienic. After the emergence of synthetic resins, water-based coatings developed rapidly. Water-base ...

In order to overcome the above shortcomings, the commonly used method is to modify its chemical structure. Modification methods include acylation modification, epoxy compound modification, formation of quaternary ammonium salt, etc. Organic silicon quaternary ammonium salt makes the nitrogen atom positively charged When used in fabric treatment to reduce oxidized energy and prevent yellowing, organosilicon quaternary ammonium salts are combined with fibers in two ways: one is that the positive c ...

According to the composition of the defoamer, it can be divided into many types, such as silicone defoamer, polyether defoamer, silicone polyether defoamer, mineral oil defoamer, tributyl phosphate defoamer, silicon Oxyane defoamer, n-butanol defoamer, etc. These are relatively common defoamers, and there are some uncommon ones, so I won't introduce them.If it is divided by industry, there are even more. Each industry has corresponding defoamers, such as water treatment defoamers, paper defoamer ...

my country's herbicide industry has grown from scratch, from small to large, and has gradually developed, and has now formed a complete industrial system. In more than 60 years, my country's herbicide industry has gone through a long process from quotation to introduction, from imitation to creation. According to statistics, since the implementation of pesticide registration in my country in 1982, nearly 200 herbicide varieties (active ingredients) have been registered by the Ministry of Agricul ...

Properties and types of silicone adhesivesBasic properties of silicone adhesives Silicone adhesives have unique heat and low temperature resistance, good electrical properties and weather resistance, chemical stability, hydrophobic moisture resistance, oxidation resistance, workability, sealability, breathability The electrical properties change very little in a wide temperature range, and the dielectric loss is low. It can be made into high-grade sealing material, mainly used for sealing bondin ...

Dear customers:The Spring Festival holiday in 2022 is approaching. According to the relevant regulations of the state and the company's actual situation and work arrangements, the Spring Festival holiday time is hereby notified as follows:From January 28th to February 7th, the construction will officially start on February 8th.I wish you all have a happy new year!Reminder: During the holiday, our company is not on duty, please deal with the problem in time. If it is overdue, it will be postponed ...

Because there is relatively stable molecular structure Si-O-Si similar to inorganic acid salt in silicone polycondensate, no matter it is liquid, solid or elastomer polymer, it has high heat resistance and chemical stability. , Excellent electrical insulation and very good hydrophobicity.1) High temperature resistanceGenerally, the heat-resistant temperature of synthetic resin paint is below 150°C, while silicone paint can be used for a long time at 200°C. If high-temperature pigments are adde ...