Webinar

16.01.202530.06.2025

On demand: Sorting the Good from the Bad - Quality Control and Selection of PP Recyclates

English
This webinar will be available to you on demand until the end of June 2025.

This case-study webinar focuses on the practical challenges of working with recyclates, comparing a virgin PP with two recyclates of different price and thus quality. We explore compositional and performance differences, finding through DSC analysis that the higher-priced recyclate marketed as PP contains a minor fraction of PE, while the cheaper option, labeled as a PE/PP blend, has a higher concentration of PE than PP. Using shear and elongational viscosity comparisons, we reveal how PE content affects processing and material performance, offering actionable insights for assessing recyclate quality and making informed decisions about substituting virgin resins. This webinar is designed for professionals dealing with recyclates, providing real-world guidance on quality assessment and substitution choices. For those seeking a deeper theoretical background, our preceding webinar on virgin materials provides useful context. 
 

Why You Should Attend:

If you’re working with recyclates and facing challenges in assessing quality and composition, this webinar is tailored for you. Learn from real-world case studies on how to use rheology and thermal analysis to evaluate recyclate properties and make informed substitution choices. For a foundational understanding, we recommend our preceding webinar, which explores PE’s effects in PP through controlled studies. 

Presenter: Dr. Natalie Rudolph

Dr. Natalie Rudolph has over 15 years of experience in polymer analysis and manufacturing, with expertise spanning polymer processing, high-performance composites, additive manufacturing, and plastic recycling. She is the author of Understanding Plastics Recycling, published by Carl Hanser Verlag, and has a rich background in recycling research, focusing on developing effective methods for material characterization and quality evaluation. Dr. Rudolph’s career includes positions as Assistant Professor at the University of Wisconsin-Madison and Vice President of R&D at AREVO, Inc., an additive manufacturing startup. 

Currently, she serves as Division Manager for Polymer at NETZSCH Analyzing & Testing, where she leads innovation in recycling, rheology, and thermal analysis.

Register now free of charge and watch any time!

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