Polymer Blend Spiking Method for Quantifying Polypropylene Variants in 100% Polypropylene Blends.

ABSTRACT: Understanding the type of polypropylene (PP) in post-consumer recycled (PCR) PP is valuable for optimizing mechanical recycling approaches, especially when blending with virgin polymers for specific applications. However, accurately identifying and quantifying the various types of polypropylene, including isotactic Homo-PP (Homo-PP), Random-PP, and non-crystalline PP components (such as xylene-soluble atactic PP and amorphous ethylene-propylene copolymers), presents significant challenges when dealing with materials composed entirely of polypropylene. To address this, we propose a solution-based crystallization elution fractionation (CEF) technique to determine the composition of different PP variants in PP blend systems. Our approach involves introducing a controlled amount of linear low-

SUBMITTER: Hashemnejad M 

PROVIDER: S-EPMC12473938 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature