1. Provide thermal stability
In the process of plastic processing, especially in the production of PVC, high temperature can cause the breakage and oxidation of PVC molecular chains, thereby reducing the physical properties and appearance quality of the material. Calcium zinc stabilizers can effectively absorb and neutralize HCl, while replacing active and unstable substituents to prevent the detachment of HCl due to heat, thereby ensuring the stability of PVC production.
2. Provide photostability
Ultraviolet radiation is also one of the important factors causing plastic aging. Calcium zinc stabilizers can absorb ultraviolet radiation, reduce the damage of ultraviolet radiation to plastic molecular chains, and thus improve the photostability of plastics.
3. Improve transparency and coloring power
Calcium zinc stabilizers have good transparency and coloring power, which can provide the desired color effect without affecting the transparency of the material. This is of great significance for the production of high-quality transparent plastic products, such as food packaging, medical devices, etc.
4. Environmental performance
Compared to traditional lead cadmium salts and organotin stabilizers, calcium zinc stabilizers do not contain heavy metals and other toxic components, making them an environmentally friendly stabilizer. This has made it widely used in fields such as food packaging and medical devices.
5. Improve compatibility and dispersibility
Calcium zinc stabilizers can improve their compatibility and dispersibility with PVC resin, thereby enhancing the performance of products, reducing mechanical wear, and extending the service life of equipment. In addition, it can endow PVC mixture with good uniform plasticization and high-speed melt flowability, making the surface of the product smooth.
6. Resistance to sulfurization pollution
Calcium zinc stabilizers have good resistance to sulfurization pollution and can maintain stable performance under high temperature conditions without producing sulfurization pollution, which is crucial for producing high-quality plastic products.
In summary, calcium zinc stabilizers play a crucial role in plastic processing. They not only improve the quality and performance of plastic products, but also meet environmental requirements. They are an indispensable additive in the modern plastic industry.
Post time: Dec-27-2024
