Organotin heat stabilizer is a kind of heat stabilizer, which can replace the unstable Cl atom on the polymer, so that the PVC resin has long-term stability and initial color retention sex 1. Organotin compounds are the most effective heat stabilizers for PVC, and their stabilizing effects include both preventive and remedial types. Organotin heat stabilizer is a stabilizer widely used in polymer materials, especially in the production of PVC materials. As a complex mixture, organotin heat stabilizer contains several different organotin compounds, which can improve the stability and processing performance of PVC materials, mainly in the following aspects:
1. Catalytic performance: The role of organotin heat stabilizers in the production and processing of PVC materials is to optimize the reaction process of chlorides and synthetic oils, and promote PVC The polymerization reaction, thereby improving the efficiency of the polymerization chemical reaction.
2. Anti-oxidation performance: Organotin heat stabilizers play a certain anti-oxidation effect in PVC materials, preventing PVC materials from decomposing and aging.
3. Thermal stability: Organotin heat stabilizers can improve the thermal stability of PVC materials, inhibit the action of oxygen and heat, and increase the temperature at which materials decompose. At the same time, it reduces the reaction between acidic substances and PVC materials, which is beneficial to reduce yellowing and volatilization of plasticizers.
4. Anti-ultraviolet performance: organotin heat stabilizer can play a certain anti-ultraviolet effect in PVC materials, effectively preventing PVC from degrading and Aging, prolong the service life of PVC material.
In summary, organotin heat stabilizers have multiple functions, which can improve the stability, processing performance and service life of PVC materials.
