Meishen Technology Company
In the halogen-containing rubber, due to high temperature vulcanization will lead to the removal of halogen from the rubber molecular chain to form HF, HCl, HBr, etc. These products will not only affect the vulcanization and physical properties of the rubber compound, but also affect the performance of the product. Great influence.
Adding metal oxides to rubber can absorb these acids. Generally, ZnO, magnesium oxide and Pb3O4 are commonly used. However, adding more zinc oxide can easily cause scorching of the rubber compound, and Pb3O4 is a heavy metal oxide that is restricted in use. , Magnesium oxide is a better choice. In addition, magnesium oxide also plays the role of vulcanization, crosslinking, anti-scorch, and improving thermal stability in rubber. The particle size distribution and morphology of magnesium oxide. The activity of magnesium oxide refers to its ability to promote chemical reactions or physical adsorption.
Light magnesium oxide is mainly used in the production of rubber products and neoprene adhesives. In rubber manufacturing, magnesium oxide acts as an acid absorber and accelerator. In neoprene adhesives, it acts as a vulcanization cross-linking, anti-scorching agent and resin chelation. . Magnesium oxide plays a role in lowering the sintering temperature in ceramics and enamels. Used as a filler in the manufacture of grinding wheels and paints, used as antacids and laxatives in medicine for the treatment of hyperacidity, gastric and duodenal ulcers, and whitening in food processing Refined decolorizing agent or granulated sugar. In agriculture, it is used as fertilizer and livestock feed. It is the main element in the metabolism of plants and animals. When used as feed for dairy cows, it can prevent the nervous system dysfunction caused by magnesium deficiency. In addition, it can also be used in glass fiber reinforced plastics, dyeing chemicals, electronics industry, insulating material industry, petroleum and oil additives, casting, phenolic plastics and other industries.
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