Liquid barium-zinc composite stabilizers have different properties due to their different compositions. But generally, it is a light yellow to yellow clear liquid with a specific gravity of 0.95-1.02 at room temperature, a viscosity of less than 100 centipoise, and a freezing point of about -15°C.
Similar to liquid barium and zinc, it has excellent thermal and light stability, low initial colorability, good transparency, and color stability. Their stabilizing effect is stronger than that of solid composite soaps, so the amount can be reduced, generally 2-3 parts, no dust poisoning, and completely dissolved in general plasticizers, with good dispersibility, and low precipitation tendency.
The importance of the liquid barium zinc stabilizer system is increasing day by day. At present, there are many kinds of liquid Ba/Zn stabilizers available on the market, which can be used in almost all fields from semi-rigid products to plasticized PVC, including calendaring, extrusion, injection molding, and extrusion. Out blow molding, injection blow molding, and plastisol processing.
Application of Barium Zinc heat stabilizer
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