Types Of PVC Stabilizers, Stabilizer In Polymer PVC, Stabilizer Factory/Manufacturers

The Role of PVC Stabilizers in PVC' s Longevity and Durability

Strengthening Longevity: PVC stabilizers serve as essential additives in PVC formulations, shielding the material from degradation factors like heat and light. This protection enhances the longevity of PVC products, ensuring they maintain their structural integrity and performance over an extended period.
Ensuring Durability: By effectively combating degradation processes, PVC stabilizers bolster the durability of PVC materials, making them resistant to discoloration, embrittlement, and other forms of deterioration. This enhanced resilience ensures that PVC products can withstand various environmental conditions and maintain their quality over time.

PVC compound stabilizers: PVC compound stabilizer is the traditional PVC stabilizer with good thermal stability and lubricity, good compatibility with PVC, high heat stabilization efficiency and low dosage. At the same time can improve product aging, decomposition and surface finish is mainly used for pipes, corrugated pipes, cable materials and other PVC products.
PVC Calcium-zinc stabilizer: Calcium-zinc stabilizer, i.e. ca zn stabilizer, is a white or yellowish powder stabilizer, can replace lead salt stabilizer, there is no sulphation problem; has good dispersion, can improve the mechanical properties of the products; has superior thermal stability and weather resistance.
Other stabilizers: In addition to the PVC stabilizers mentioned above, there are some other types of PVC stabilizers, such as organic zinc stabilizers, barium stabilizers and so on. These PVC stabilizers have their own advantages and disadvantages in terms of stability, price and environmental protection.

Lead-Based Stabilizers: Lead compounds such as lead stearate, lead sulfate, and lead carbonate.
Calcium-Zinc Stabilizers: Calcium stearate, zinc stearate, and other organic acids.
Tin-Based Stabilizers: Organotin compounds like dibutyltin dilaurate and dioctyltin maleate.
Organic Stabilizers: Organic compounds that do not contain heavy metals, such as certain phosphites and epoxides.

Synthesis: The raw materials undergo chemical reactions to form the PVC stabilizer compounds. For example, in the case of calcium-zinc stabilizers, calcium and zinc salts react with stearic acid to form calcium stearate and zinc stearate.
Catalysis: Catalysts may be used to speed up the chemical reactions and improve yield.

Homogenization: The synthesized PVC stabilizer compounds are mixed and blended to ensure a uniform composition. This step is crucial for achieving consistent performance in the final product.
Additives: Additional components such as lubricants, antioxidants, and co-stabilizers may be added to enhance the performance of the stabilizer for PVC.

Filtration: The mixture is filtered to remove any impurities or unreacted materials.
Washing: The stabilizer compounds may be washed to remove any residual chemicals or by-products.
Drying: The purified stabilizer for PVC is dried to remove any moisture content, which could affect its performance.

Testing: Samples of the stabilizer for PVC are tested for various parameters such as thermal stability, compatibility with PVC, and effectiveness in preventing degradation.
Certification: The PVC stabilizer must meet industry standards and regulatory requirements, especially for applications involving potable water or food contact.

Form: The PVC stabilizer can be produced in various forms, including powder, granules, or liquid, depending on the application requirements.
Packaging: The final product is packaged in suitable containers to protect it from contamination and moisture. Common packaging options include bags, drums, and bulk containers.