Polyvinyl chloride (PVC) is one of the most versatile plastics used today, but its inherent susceptibility to thermal degradation during processing necessitates the use of stabilizers. NINGBO INNO PHARMCHEM CO.,LTD. is a leading supplier of these critical additives, and this article delves into the science and application of our Composite Lead Salt Stabilizers, offering valuable knowledge for industry professionals.

PVC polymers contain unstable chlorine atoms that can easily be released when exposed to heat and UV radiation. This process, known as dehydrochlorination, leads to discoloration, brittleness, and a significant loss of mechanical properties. Stabilizers counteract this degradation by scavenging the free radicals and HCl released, thereby extending the processing window and enhancing the long-term durability of the PVC product.

Lead salt stabilizers, particularly in their composite forms, have long been recognized for their excellent heat stabilizing efficiency and cost-effectiveness. Our Composite Lead Salt Stabilizers are advanced formulations that synergistically combine lead salts with other components like lubricants, antioxidants, and UV absorbers. This multi-functional approach provides a comprehensive stabilization package, offering superior performance compared to single-component stabilizers. The composite nature ensures excellent dispersion within the PVC matrix, maximizing their protective effects.

The benefits of using our Composite Lead Salt Stabilizers are manifold. They provide exceptional thermal stability, allowing PVC to be processed at higher temperatures without significant degradation. This is vital for achieving complex shapes and dense structures in products like pipes and profiles. Additionally, they offer good resistance to weathering and UV exposure, which is crucial for outdoor applications. The balanced lubrication properties also contribute to smoother processing, improved surface finish, and enhanced impact strength, as discussed previously.

Applications for these stabilizers are diverse, ranging from rigid PVC pipes, fittings, and profiles used in construction, to window frames, electrical conduits, and even some film applications. While lead-based stabilizers have been a mainstay due to their performance, it's important to note that they are typically not used in food-contact or transparent applications due to toxicity concerns. For manufacturers looking to buy these effective stabilizers, NINGBO INNO PHARMCHEM CO.,LTD. provides a reliable source with a commitment to quality and technical support, ensuring you make informed choices for your PVC formulations.