After more than one year of trial and error, Baotou Rare Earth Institute has successfully developed a new type of rare earth PVC stabilizer with the advantages of non-toxicity, environmental protection and long-term stability. Now it has large-scale production conditions.
PVC materials need to be heated to 200 degrees Celsius for pretreatment, so it is necessary to add a stabilizer to prevent thermal decomposition in the PVC material. At present, domestic PVC stabilizers are most widely used as lead salt stabilizers, but there are safety problems that endanger the environment. The gradual withdrawal of lead stabilizers from the market is bound to be the general trend.
According to reports, the main component of the new rare earth PVC stabilizer successfully developed by Baotou Rare Earth Institute is strontium. The content is about 10%. If the annual output of PVC is 13 million tons, 40,000 tons of strontium can be used every year. A good stabilizing effect, environmentally friendly and efficient, and inexpensive lead salt stabilizer replacement products are also of great significance for digesting the surplus ore deposits of Bayan Obo.
At present, this new type of rare earth PVC stabilizer has large-scale production conditions, and can be preferentially applied to PVC profiles, pipes, plates and other fields.
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