SSP (Continuity) PET Plastic Recycling Machine Line with Solid State Polymerization For IV Increase

Solid state polymerization (SSP) is a post-processing technique used to increase the molecular weight of polyethylene terephthalate (PET), which in turn enhances the melting point, mechanical properties, and chemical stability of PET. This process is commonly employed in the production of bottle preforms and other PET products. The solid state polymerization process takes place attemperatures below the glass transition temperature and above the melting point of PET, allowing the PET particles to remain in a solid state.The advantage of solid state polymerization (SSP) lies in its ability to increase the molecular weightof PET without compromising the material's properties. This is directly related to the performance of the final product, such as improved mechanical strength and enhanced chemical stability.Further more, the SSP process can also remove low molecular weight substances from the material, such as residual monomers and oligomers, thereby increasing the purity of the product. SSP (Solid State Polymerization) is an indispensable step in the manufacturing of PET bottles, containers, packaging tapes, and other engineering plastic products, especially for applications that require high-performance PET.