Silica-based coatings for preventing polyisocyanurate adhesion on metals
Innovative silica-based coatings effectively prevent polyisocyanurate adhesion on metal surfaces. These coatings withstand high temperatures and abrasive forces, making them ideal for industrial applications requiring durability and minimal polymer contact.
Overview
The proposed solution involves innovative silica-based coatings designed to prevent polyisocyanurate (PIR) adhesion on metal surfaces. By employing hydrophobic or oleophobic derivatives of silica, these coatings effectively minimize contact with PIR, a polymer known for its challenging adhesion issues. This technology is particularly beneficial for industries where PIR adhesion must be minimized, as it withstands temperatures up to 200°F and resists abrasive forces from tools and cleaning methods.
Technical specifications
Key features include:
- Surface treatments: Utilizing surface grinding or polishing to achieve low surface roughness and introducing micro-grooves or patterns to mechanically repel the polymer.
- Chemical modifications: Applying hydrophobic or oleophobic coatings, such as silane or fluorosilane-based treatments, or inert coatings like boron nitride (BN) to prevent PIR adhesion during polymerization.
- Durability: Coatings are designed to be permanent, withstanding high temperatures and abrasive forces from scraping tools, brushes, and dry ice blasting.
Technology readiness level
Currently, the technology is at TRL 4, indicating that it has been validated in a laboratory environment. Future validation will focus on testing the coating's performance under various conditions to ensure it meets all project requirements, including thermal and abrasive resistance.
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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