Magnesium hydroxide has excellent flame retardant properties, silicone rubber use a material, the following is a detailed explanation of magnesium hydroxide in silicone rubber flame retardant properties.
Silicone rubber has high and low temperature resistance, weather resistance, ozone resistance and other excellent performance in various fields of the national economy has been widely used.
However, silicone rubber itself is flammable and will continue to burn when exposed to an open flame, which to some extent limits its application in the fields of electronics and electricity, wires and cables, automobiles, aerospace and so on.Therefore, the flame retardant modification of silicone rubber is needed to expand its application range.
In recent years, the flame retardant modification of silicone rubber has become one of the main research directions in the application of silicone rubber.Early flame retardants used in silicone rubber mainly include decabromodiphenyl ether, tetrabrobisphenol A, poly2, 6-dibromophenyl ether, chlorinated paraffins and other halogen flame retardants and phosphorous flame retardants such as red phosphorus and phosphate esters.
Although these flame retardants have a good flame retardant effect on silicone rubber, they do great harm to the environment due to the release of harmful gases during combustion.Therefore, its application is subject to many limitations.Magnesium hydroxide and aluminum hydroxide have no harmful gas release during combustion, and the residue after combustion will not cause pollution to the environment. Therefore, they have been widely used as environment-friendly flame retardants.
However, magnesium hydroxide and aluminum hydroxide have obvious flame-retardant effect only when the addition amount is large, and a large amount of filling magnesium hydroxide will cause great damage to the mechanical properties and electrical properties of silicone rubber.The surface modification of magnesium hydroxide will help to improve the dispersion of magnesium hydroxide in silicone rubber and improve its interfacial compatibility with silicone rubber, so that silicone rubber can maintain good mechanical properties while being flame retardant.
Therefore, it is quite necessary to add magnesium hydroxide to the material as mentioned above, and it is also a measure to avoid fire and life danger.
MeiShen is the world's leading producer of magnesium oxide,Magnesium oxide is an oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in the form of periclase in nature and is a raw material for magnesium smelting. Magnesium oxide is white or light yellow powder, odorless, tasteless, this product is insoluble in water and ethanol, melting point 2852 ° C, boiling point 3600 ° C, magnesium oxide has high refractory insulation properties. It can be converted into crystal by burning at a temperature above 1000 ° C. If it rises above 1500 ° C, it will form a burnt magnesia or sintered magnesia.
Magnesium oxide can be used in the manufacture of metallurgy, smelting, advanced magnesia bricks, refractory materials and moisturizing materials. It is also widely used in rubber, rubber sheet, rubber products, pharmaceutical industry, food industry, plastic sheet accelerator, glass fiber reinforced plastics and Surface coating of silicon steel sheet, paper production, steel ball polishing, leather treatment, insulation materials, grease, dyes, ceramics, desiccant, resin, flame retardant, etc.
Hebei MeiShen Chemical Technology Group is the main magnesium oxide producer in the world. It is also the largest magnesium salt producer in China and has won the ISO9002 quality system certification. It also has GMP-Certification.
With rich experience in the research, development, production, management and operation of magnesium oxide products, MeiShen Group has always attached great importance to the research and development of new products and strict requirements on product quality.MeiShen has a high-level sales team.The business covers more than 20 countries and regions around the world.It is widely welcomed by new and old customers.
MeiShen has a high-level sales team.The business covers more than 20 countries and regions around the world.It is widely welcomed by new and old customers.