Silicone oil has very good hydrophobicity. The so-called hydrophobicity means that the water in the liquid phase only wets the silicone oil/air interface to a lesser extent. The size of the contact angle formed by the water droplets placed on the surface with the surface is a measure of the hydrophobicity of the surface. If the contact angle θ is greater than 90°, the hydrophobicity is better, and the contact angle θ is less than 90°, which indicates that the water is poor.The surface hydrop ...
my country's glass fiber industry is a sunrise industry, and with the development of application fields such as construction, machinery, electronics and other glass fiber reinforced composite materials, my country's glass fiber industry is entering a new round of rapid development. It is estimated that during the "Eleventh Five-Year Plan" period, the growth rate of glass fiber production will be close to 10%. In 2010, my country's glass fiber production is expected to reach 1.3 million ...
Organic silicone adhesive has unique heat resistance and low temperature resistance, good electrical properties and weather resistance, chemical stability, hydrophobic moisture resistance, oxidation resistance, workability, sealability, breathability and elasticity, etc. The electrical performance changes very little over a wide temperature range and the dielectric loss is low. It can be made into high-grade sealing materials, which are mainly used for sealing bonding of window glass and glass c ...
As mentioned above, silicone resin has excellent thermal oxidation stability, cold resistance, weather resistance, electrical insulation, water repellency, anti-sticking and mold release properties. According to this, silicone resin is widely used as high and low temperature resistant insulating paint (including varnish, colored paint, enamel, etc.), such as impregnating H-class electrical and electronic coils for filling and insulation, impregnating glass cloth, glass wool and asbestos cloth, T ...
The development trend of surfactantsAt present, developed countries have established a complete system for research in the field of surfactants, which can realize the diversification and serialization of product research and development. The development efforts are very strong, and the development concept has broken through the traditional surfactants.Take the application of surfactants in pesticides as an example. Foreign studies on the effect of surfactants on the activity of herbicides have s ...
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 ...
Leather brightener is made of high-quality organic silicon. It is a water-soluble oil brightener. The leather brightener has a smooth and delicate feel (oily feeling), with high brightness and smoothness. This product is resistant to high temperature and low temperature. It does not contain solvent and does not stick to leather. It can increase the handle of leather products, make them softer and more natural, and make the leather smooth and delicate. The leather products are endowed with excell ...
Defoaming mechanism1. The decrease of the local surface tension of the foam leads to the collapse of the foamThe origin of this mechanism is to sprinkle higher alcohol or vegetable oil on the foam. When it dissolves into the foam liquid, it will significantly reduce the surface tension there. Because these substances are generally less soluble in water, the reduction of surface tension is limited to the part of the foam, and the surface tension around the foam hardly changes. The part with reduc ...
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 ...
Organic silicone adhesive has unique heat resistance and low temperature resistance, good electrical properties and weather resistance, chemical stability, hydrophobic moisture resistance, oxidation resistance, workability, sealability, breathability and elasticity, etc. The electrical performance changes very little over a wide temperature range and the dielectric loss is low. It can be made into high-grade sealing materials, which are mainly used for sealing bonding of window glass and glass c ...