Products | Application of MgO in Rubber
Release time:
2021-09-04
Product Recommendations
Russian Mining Magnesium Oxide MagPro® 150
MagPro®170
01Product
Application
Applications
The main applications of the products at present:
Generally, magnesium oxide is used as an excellent filler and reinforcing agent for rubber products, which can improve the quality and strength of rubber products. It can also be used to manufacture advanced glass products, adhesives, paints and daily chemicals. Activated magnesium oxide is an important raw material for preparing high-functional fine inorganic materials, electronic components, inks, and harmful gas adsorbents. It can be used as a filler for paints, paper and cosmetics, a filler and reinforcing agent for plastics and rubber, and an auxiliary material for various electronic materials.
Product pictures Figure 1: Activated magnesium oxide Figure 2: Magnesium oxide application case
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Impact of product application (in rubber)
Anti-scorch, extend the curing time, improve the process
Metal oxides
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The main performance of activated magnesium oxide and ordinary magnesium oxide is different
The particle size distribution is suitable, the average particle size is generally less than 2μm, and the microscopic morphology is irregular particles or nearly spherical particles or flaky crystals.
It has a little activity, which can be expressed by citric acid activity (CAA value) (the smaller the value, the higher the activity), or by iodine absorption value.
Active magnesium oxide exposed to air absorbs moisture and carbon dioxide, which reduces its activity and sometimes requires chemical treatment for protection; its other properties are the same as those of ordinary magnesium oxide.
Questions and Answers
Q
1. Why is activity an important indicator for measuring magnesium oxide used in the rubber industry?
A: Activated magnesium oxide has a large specific surface area and is an important raw material for the preparation of high-functional fine inorganic materials, electronic components, inks, and harmful gas adsorption. Activity is an important indicator for measuring magnesium oxide in the rubber industry. As one of the main inorganic active agents, activated magnesium oxide can greatly improve the degree of vulcanization with a small amount in the rubber compound; it plays a role in fluidity and antioxidant capacity in rubber, increases the tensile strength and impact resistance of rubber, and is an important compounding agent for halogen-containing rubber.
Q
2. In which rubbers can activated magnesium oxide be used?
A: It can be mainly used as a promoter and activator for butyl rubber, chloroprene rubber, styrene-butadiene rubber and fluororubber. The activity of magnesium oxide can increase the crosslinking density of butyl rubber, thereby improving the physical properties of rubber bottle stoppers. The activity of magnesium oxide has a great influence on the anti-scorch performance of CR and also has a certain influence on other physical properties. Therefore, it is very important to choose the right magnesium oxide in the rubber formula.
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