Scalable geopolymer/silica aerogel composite for insulation and fire safety
A novel scalable composite combining geopolymer and silica aerogel offers ultra-low thermal conductivity and Class A fire rating, ideal for retrofitting projects. It uses low-cost materials and a moldable fabrication process to achieve high insulation performance.
Overview
This innovative composite material combines the structural and fire-resistant properties of porous geopolymers with the exceptional thermal insulation capabilities of silica aerogels. Designed for scalability and moldability, this solution is ideal for retrofitting projects where space and safety are paramount. The composite achieves ultra-low thermal conductivity and meets Class A fire performance standards, making it a superior choice for insulation that does not compromise on safety or cost.
Technical specifications
- Components: Geopolymer matrix and silica aerogel.
- Process: Utilizes controlled mixing, foaming, and curing, with sol-gel integration and supercritical drying.
- Thermal performance: Achieves R-values ≥7 per inch.
- Fire resistance: Compliant with ASTM E84 and UL 790 Class A standards.
- Applications: Suitable for space-constrained retrofitting applications.
Technology readiness level
The current development stage is Technology Readiness Level 4, indicating that the composite has been validated in a lab environment. Future plans include pilot-scale production and testing in real-world settings.
About Purdue University
Purdue University is a comprehensive public land‑grant research institution in West Lafayette, Indiana, anchored by a large residential campus. Industry engages through co‑located core facilities, pilot‑scale testbeds, and an adjacent innovation district that brings together labs, corporate R&D space, and maker resources near faculty talent. A statewide Extension network and an established engineering co‑op program connect companies to field sites, workforce pipelines, and pragmatic pathways from concept to deployment across Indiana. Research is supported by competitive federal funding from NSF, DOE, USDA, NIH, and the Department of Defense, and commercialization is managed by a dedicated technology transfer office in partnership with the university’s affiliated research foundation.
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