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Princeton University’s Princeton Materials Institute (PMI) has formally approved a collaborative research project with Clean Green Electronic Recycling under New Jersey’s Clean Tech R&D Voucher Program, aimed at transforming the recycling of obsolete VHS tapes and reducing electronic waste’s environmental impact.

Breaking Down the Barriers of E-Waste

The project, set to run from May 15, 2025, to May 14, 2026, will leverage Princeton’s cutting-edge Interdisciplinary Analysis Center (IAC) to decode the complex material composition of VHS tapes. a legacy waste stream often overlooked in modern recycling systems. Using advanced techniques like:

X-ray Diffraction (XRD) and FTIR Spectroscopy to identify plastics and metals,
Scanning Electron Microscopy (SEM) for microstructural analysis,
Thermogravimetric Analysis (TGA) + Gas Chromatography-Mass Spectrometry (GC/MS) to study PET tape decomposition and emissions,
The team aims to develop a scientific blueprint for efficient, low-emission recycling.

Why It Matters

VHS tapes, though outdated, contain a mix of PET plastics, adhesives, and trace metals that pose challenges for traditional recycling. When improperly disposed of, these materials can release greenhouse gases (GHGs) and toxic pollutants during landfill decomposition or incineration. By precisely mapping their breakdown behavior, Clean Green Electronic Recycling hopes to:

Increase recovery rates of reusable materials,
Minimize harmful emissions during processing,
Pioneer scalable methods for other hard-to-recycle e-waste.

A Model for Public-Private Innovation

The collaboration underscores the role of state-funded programs (like New Jersey’s Clean Tech Voucher) in bridging academia and industry. Judith Sheft, Executive Director of the NJ Commission on Science, Innovation and Technology, emphasized the project’s alignment with broader goals to decarbonize waste management and advance a circular economy.

What’s Next?

Pending final voucher approval, the research will commence at Princeton’s Bowen Hall facilities this spring. Success could set a precedent for recycling innovations targeting other legacy electronics from cassette tapes to early-generation circuit boards.

Understanding these materials at the atomic level is the first step to recycling them sustainably,said a PMI spokesperson. This isn’t just about VHS tapes It’s about rethinking waste infrastructure for the Anthropocene.

For updates, follow Princeton Materials Institute and Clean Green Electronic Recycling on social media.

About the Clean Tech R&D Voucher Program:

Administered by the NJ Economic Development Authority, the program provides grants to small businesses and startups collaborating with research institutions to accelerate clean technology solutions.

Media Contact:

Vincent Catizone