The main differences between lead salt stabilizers and calcium zinc stabilizers are their environmental friendliness, thermal stability, applicability, and safety.
Environmental friendliness and safety: Lead salt stabilizers contain lead, which is highly toxic and not suitable for transparent products, and have gradually withdrawn from the market in recent years. In contrast, calcium zinc stabilizers are a green and environmentally friendly product that completely solves the problem of sulfur and lead pollution. They have a light weight and can be appropriately increased with inorganic fillers to reduce costs.
Thermal stability: Lead salt stabilizers have excellent thermal stability, especially good long-term thermal stability, and are inexpensive. However, the thermal stability of calcium zinc stabilizers is weaker than that of lead salts, the processing window is narrower, and the control requirements are higher.
Applicability: Lead salt stabilizers are widely used in PVC products due to their excellent electrical insulation and lubricity. However, due to its toxicity, its use is limited. Calcium zinc stabilizers are considered the most promising alternative to lead salt heat stabilizers due to their non-toxic and efficient characteristics.
Lubrication characteristics: In the process of replacing lead salt stabilizers with calcium zinc stabilizers, process parameters need to be adjusted appropriately, mainly because the amount of lubricant used for calcium zinc stabilizers is greater than that for lead salts.
In summary, although lead salt stabilizers have excellent thermal stability and low cost, their toxicity and unsuitability to transparent products limit their application. In contrast, although calcium zinc stabilizers have slightly weaker thermal stability, their environmentally friendly and non-toxic characteristics make them a more preferred stabilizer, especially in fields such as food packaging and medical devices
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Calcium zinc stabilizer and composite lead salt stabilizer refer to PVC thermal stabilizers that play a role in thermal stability in the production of PVC products. The difference between the two is as follows:
Calcium zinc thermal stabilizers meet environmental requirements and are currently widely used. Its characteristics include the following aspects:
1. The most important feature of calcium zinc stabilizers is that they are used in both transparent and opaque product formulations in chemical building materials, with strong applicability.
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2. The price is lower than organic tin.
3. It has good compatibility and coordination with lead, tin, cadmium, and antimony stabilizers, and there is no sulfide pollution. It is suitable for manufacturers who have already used lead salt stabilizers to replace non-toxic and environmentally friendly products.
4. Another significant advantage of calcium zinc stabilizers is their good weather resistance, and products produced with qualified calcium zinc composite stabilizers will not produce discoloration.
Lead salt stabilizers have two major categories of monomers and composites, and lead salt stabilizers are basically used as the main stabilizer in China. The composite lead salt heat stabilizer adopts symbiotic reaction technology to mix the three salts, two salts and metal soap in the reaction system with the initial ecological grain size and various lubricants to ensure the full dispersion of the heat stabilizer in the PVC system, and at the same time, due to the co-fusion with the lubricant to form a granular form, it also avoids the poisoning caused by lead dust. Compound lead salt stabilizers contain both the heat stabilizer and lubricant components needed for processing and are called full-package heat stabilizers.Its characteristics are as follows:
1. Toxic.
2. Cannot be used for transparent products.
3. Good electrical insulation and weather resistance;
4. Low price;
5. Good processing performance suitable for various processes;
Contact us to discuss your requirements of Lead Salt Stabilizer. Our experienced sales team can help you identify the options that best suit your needs.
Post time: Apr-11-