shandong Repolyfine chemical co.,ltd

Hydrotalcite plays an important role in PVC stabilizers and PVC products in many ways:
1. **Role in PVC Stabilizer**:
- **Absorption of HCl**:P VC will decompose due to heating and other factors during processing and use to produce HCl, and the presence of HCl will accelerate the further degradation of PVC. Hydrotalcite has strong acid absorption, which can effectively absorb HCl produced by PVC decomposition, thereby inhibiting the degradation reaction of PVC and stabilizing PVC. This can extend the service life of PVC products and improve their stability.
- **Auxiliary Thermal Stability**: Hydrotalcite itself has high thermal stability and can maintain the stability of the structure within a certain temperature range. Adding it to PVC stabilizer can improve the thermal stability of the entire stabilizer system, help PVC maintain good performance at higher temperatures, and reduce the quality degradation caused by thermal decomposition.
- **Synergy**: Hydrotalcite can work synergistically with other heat stabilizers such as organotin, lead, zinc, etc. When used in conjunction with these conventional heat stabilizers, the thermal stability of PVC can be significantly improved, reducing the amount of stabilizer used, reducing costs and ensuring good stabilization.
2. **Role in PVC products**:
- **Improve weather resistance**: Hydrotalcite can absorb ultraviolet rays and reduce the damage of ultraviolet rays to PVC products, thereby improving the weather resistance of PVC products. This enables PVC products to maintain good performance when used outdoors, and is not prone to aging, fading and other phenomena.
- **Improved flame retardant properties**: Hydrotalcite decomposes when heated, releasing large amounts of water and carbon dioxide and absorbing large amounts of heat. This property can reduce the temperature of the combustion system, dilute and block flammable gases, and the magnesium and aluminum oxides generated by thermal decomposition will form a protective film on the surface of the material, thus playing a good flame retardant effect.
- **Enhance mechanical properties**: The addition of hydrotalcite can enhance the mechanical properties of PVC products to a certain extent, such as improving the strength, toughness and wear resistance of the products. This is because hydrotalcite can interact with PVC molecules, improve the molecular structure and crystallization properties of PVC, and improve the mechanical properties of the product.
- **Improve the transparency of the product**: Hydrotalcite has good transparency, and its application in PVC products will not have a significant impact on the transparency of the product, and even in some cases can improve the transparency of the product and make it more beautiful.
- **Improve insulation performance**: Hydrotalcite is an insulating material, which can be added to PVC to improve the insulation performance of PVC products, making its application in the electrical field more safe and reliable.