PVC lead salt stabilizer is a commonly used thermal stabilizer in the processing of polyvinyl chloride (PVC). It mainly enhances the thermal stability of the material by capturing hydrogen chloride (HCl), and has outstanding electrical insulation and cost advantages. Its core application areas include:
Main application scenarios:
1. Hard PVC products
Such as pipes, plates, profiles, etc., especially suitable for opaque products (such as wire and cable sheaths, building drainage pipes). Lead salt stabilizers can effectively inhibit the thermal degradation of PVC during processing and extend the service life of products.
2. Wire and cable industry
Due to its excellent electrical insulation properties, lead salt stabilizers are widely used in the production of PVC cable materials.
Technical advantages:
Improvement of composite lead salts: Lead salts are combined with lubricants through symbiotic reaction technology to form granular dust-free products, reducing dust pollution and improving dispersibility.
Cost effectiveness: High metal content, strong ability to absorb HCl, and wide processing temperature adaptability, suitable for large-scale industrial production.
Limitations and Alternative Trends
Toxicity issue: The heavy metal toxicity of lead limits its application in food contact materials, medical devices, and other fields.
Environmental substitution: With the increasing demand for environmental protection, low toxicity products such as calcium zinc composite stabilizers and organotin are gradually replacing lead salts.
Summary: PVC lead salt stabilizers still have competitiveness in traditional industrial fields, but their application scope needs to be balanced with environmental regulations. The composite lead salt technology has maintained its market position in specific scenarios by optimizing formulas and processes.
Post time: Nov-03-2025
