Ultra-thin pfas-free hybrid coating for low-friction razor blades
Introducing a PFAS-free hybrid coating for razor blades that combines carbonized lignin and chitosan to achieve ultra-low friction and strong adhesion, offering a sustainable alternative to PTFE coatings.
Overview
This innovative PFAS-free hybrid coating technology is designed to provide ultra-low friction and strong adhesion for razor blades. By utilizing carbonized lignin as a solid lubricant and chitosan as a binder, the coating forms uniform sub-micron films that enhance glide and reduce friction to levels comparable to PTFE. The sol–gel/organosilane network ensures robust adhesion to metal and DLC surfaces, addressing common challenges in coating applications. This sustainable solution is compatible with existing manufacturing processes and offers a practical alternative to traditional PTFE coatings.
Technical specifications
- Composition: Combines carbonized lignin, chitosan, and a sol–gel/organosilane adhesion network
- Application Methods: Spray, dip, or meniscus methods
- Curing Temperature: Below 150°C
- Scalability: Compatible with existing manufacturing processes
- Performance: Provides ultra-low friction and strong adhesion, enhancing glide and wear resistance
- Environmental Benefits: PFAS-free, offering a sustainable alternative to PTFE coatings
- Versatility: Suitable for application on Cr, CrN, and DLC substrates
Technology readiness level
This technology is currently at TRL 4, indicating that it has been validated in a laboratory environment. Future validation plans include formulation screening, application testing, optimization, and prototyping to further refine and test the coating's performance.
About University of British Columbia
UBC is a comprehensive public research university with major campuses in Vancouver and the Okanagan, among Canada’s largest and most internationally connected. Industry engages through a co-op talent pipeline and collaborative research spaces that include co-located clinical settings and on‑campus testbeds. A dedicated technology transfer office brokers partnerships, manages IP and licensing, and is complemented by an active venture accelerator and incubator network. Research is supported by competitive funding from Canada’s Tri‑Council agencies (NSERC, CIHR, SSHRC) and infrastructure investments from the Canada Foundation for Innovation, alongside provincial and industry sponsorship.
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