Non-thermal plasma bulk radical polymerization for HDPE protection
Innovative DBD plasma technology enables solvent-free polymerization of PI prepolymers on HDPE, enhancing protection by blocking air oxidation. This method offers remote application capability and potential for diverse polymer coatings.
Overview
This solution utilizes Dielectric Barrier Discharge (DBD) plasma technology for initiating polymerization of polyisobutylene (PI) prepolymers directly on high-density polyethylene (HDPE) surfaces. The non-thermal plasma process operates under ambient conditions and does not require traditional radical initiators or solvents, making it an environmentally friendly and versatile approach to protect substrates by blocking air oxidation. This method is particularly advantageous for polymerizing in optically inaccessible environments, offering potential applications across various industries.
Technical specifications
- DBD Plasma Initiation: Utilizes non-thermal plasma to initiate polymerization without radical initiators
- Solvent-Free Process: Eliminates the need for solvents, reducing environmental impact
- Remote Application: Capable of polymerizing through barriers, inside containers, and in porous structures
- Material Compatibility: Effective for HDPE and potentially other substrates requiring gas-impermeable coatings
- Equipment Flexibility: Compatible with both large-scale and handheld plasma devices
Technology readiness level
This technology is currently at TRL 6, with successful demonstrations in relevant environments, and is moving towards optimization of operational parameters such as exposure time, voltage, and pulse frequency for commercial-scale application.
About Drexel University
Drexel University is a comprehensive private research university in Philadelphia, recognized for an urban, industry‑embedded model anchored by a longstanding cooperative education program. Year‑round co‑ops create a ready talent pipeline and align sponsored research with real‑world needs. The campus sits within an innovation district with co‑located labs and incubators, enabling companies to collaborate on prototyping with faculty. Through the university’s medical college and clinical partners, industry teams can access clinical expertise and translational pathways. Research is supported by competitive federal funding from agencies such as NIH, NSF, DOE, and DoD. A dedicated technology transfer office manages IP, licensing, corporate research agreements, and startup formation.
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