Ba-Cd-Zn stabilizers are a combination of salts derived from three key metals, each playing a specific role in preventing PVC degradation:
- Barium: Enhances thermal stability and prevents the structural degradation of PVC at high temperatures.
- Zinc: Ensures better initial color and prevents discoloration during the early stages of production.
- Cadmium: Improves initial color and provides light stability, preventing discoloration when exposed to light.
The Key Role of Cadmium:
In some applications, a Barium-Zinc combination (without cadmium) can be used. This type of stabilizer prevents thermal degradation of PVC and ensures desirable initial color. However, in products exposed to light (such as films or synthetic leather), the absence of cadmium may lead to discoloration and reduced light stability. Thus, the choice of stabilizer depends on the specific application requirements and environmental conditions.
Ba-Cd-Zn and Ba-Zn Stabilizers by PaydarSaz Shimi:
- For E-PVC (Emulsion):
- Suitable for synthetic leather: PAYASTAB BCZ 2121
- For S-PVC (Suspension):
- Suitable for PVC granules: PAYASTAB BCZ 2141
Role of Epoxidized Soybean Oil (ESBO) in Enhancing Stabilizer Performance:
- Reduces the effects of Zinc Burn and prevents zinc-induced degradation.
- Improves both thermal and light stability.
Comparison of Ba-Cd-Zn Stabilizers with Other Stabilizers:
- Vs. Calcium-Zinc Stabilizers:
Ba-Cd-Zn offers superior thermal stability and light stability but may pose environmental challenges due to the presence of heavy metals. - Vs. Tin Stabilizers:
Ba-Cd-Zn provides better light stability and is more cost-effective. - Vs. Lead Stabilizers:
Ba-Cd-Zn offers greater transparency and thermal stability, though it is slightly more expensive.
Conclusion:
Ba-Cd-Zn stabilizers are ideal for enhancing the thermal and light stability and overall quality of PVC compounds. The addition of epoxidized soybean oil (ESBO) can further boost their performance.
PaydarSaz Shimi is committed to delivering high-quality and diverse PVC stabilizer solutions to meet the needs of various industries. We are ready to collaborate with our clients to fulfill their specific requirements.
