What are the differences in recycling processes for PVC vs. polypropylene outdoor armchairs?

Recycling PVC (polyvinyl chloride) and polypropylene (PP) outdoor armchairs involves distinct processes due to their chemical compositions and material properties. PVC recycling is more complex because it contains chlorine, requiring specialized treatment to prevent toxic emissions. The process typically involves shredding, washing, and melting the material, but additives like plasticizers complicate reuse.

Polypropylene, on the other hand, is easier to recycle as it lacks harmful components. PP armchairs are often mechanically recycled—sorted, cleaned, melted, and pelletized for new products. Its higher melting point and resistance to chemicals make it a more sustainable choice.

Both materials face challenges, such as contamination from outdoor use, but PP generally offers a greener lifecycle. Proper sorting and recycling infrastructure are crucial for maximizing efficiency in plastic waste management. Choosing recyclable materials like PP can significantly reduce environmental impact.