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Among the thermal stabilizers used in PVC processing and production, calcium and zinc stabilizers have the following characteristics relative to other PVC auxiliaries. 1, green environmental protection: no heavy metal elements (lead, separation), can meet the requirements of environmental standards ... Read More
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PVC heat stabilizer types are very many, the impact on PVC transparency is different, on the current production situation, liquid organic tin PVC heat stabilizer transparency is better, three basic lead sulfate, two basic lead phosphite PVC heat stabilizer transparency is poor, how is this? 1, the ... Read More
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With the requirements of national environmental protection, calcium zinc stabilizer has gradually replaced lead salt stabilizer, widely used in the production and processing of PVC products such as plate, pipe, bellows, profiles, pipe fittings and wires and cables, although calcium zinc stabilizer ... Read More
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The polyols in calcium zinc stabilizer can replace the unstable chlorine atoms in PVC molecular chain or the polyols can absorb the HCl produced by PVC decomposition. This is not an appropriate understanding. The actual situation should be: Diols have no auxiliary stabilizing effect. Polyols alone ... Read More
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Lubrication Application of calcium stearate The use of calcium stearate in the production, processing and modification of polymers. Calcium stearate is used as a heat stabilizer and lubricant for PVC. Calcium stearate is used as beta - crystalline nucleating agent and halogen absorber for polypropyl... Read More
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In the production and processing formula of hard PVC, comparing the activity of heat stabilizer barium stearate, calcium stearate and lead stearate, it can be seen that barium soap and calcium soap are not active. They are mid-to-late heat stabilizers. Calcium stearate is a commonly used internal ... Read More
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In the process of coating production, there are also many manufacturers mention the problem of dispersion. Under normal circumstances, the dispersion of zinc stearate in the paint is no problem, but in the production process of zinc stearate, there will be some indicators on the dispersion will also ... Read More
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PVC heat stabilizer on the impact of plastic weather resistance in daily life in outdoor long-term external use of PVC products will not only be caused by the effect of light aging, but also by wind, rain, snow and dew, the altercountry of day and night, seasonal changes, air pollution and so on. ... Read More
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Calcium stearate is commonly used as a food additive. In this case, if the content of calcium stearate is too much, it will cause food additives to exceed the standard, which is not allowed by the regulation. Then, we need to measure to know whether the amount of calcium stearate is excessive. How ... Read More
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In the paint industry, we all know that zinc stearate is often added to the primer, so what role does zinc stearate play? Zinc stearate is mainly used in wood primer coating, filling effect, improve polishing, and good transparency, affect the transparency of the coating is small, especially ... Read More
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