Ambient-curing biobased non-isocyanate polyurethane adhesives
Innovative non-isocyanate polyurethane adhesives using biobased precursors offer fast ambient curing, high adhesion, and safe removability, ideal for ABS and keratin surfaces. Featuring acrylate curing chemistry and biocompatible initiators, they promise prolonged wear and non-damaging peel.
Overview
The ambient-curing biobased non-isocyanate polyurethane (NIPU) adhesives represent a significant advancement in adhesive technology by utilizing glycerol and vegetable oil-based precursors. These adhesives are designed to cure quickly at ambient conditions while providing high adhesion to materials like ABS and keratin. The unique formulation ensures prolonged wear duration of up to two weeks and offers safe, non-damaging removability, making it ideal for sensitive applications.
Technical specifications
Key features:
- Utilizes glycerol and vegetable oil-based precursors for non-toxic, eco-friendly adhesive formulations
- Integrates acrylate curing chemistry for rapid ambient curing
- Employs biocompatible initiators such as benzoyl peroxide and ascorbic acid
- Adjustable adhesive properties through modification of NIPU chain length and pendant acrylate groups
- High adhesive peel strength ranging from 0.2 to 0.7 N/mm
- Suitable for a variety of surfaces, including ABS and keratin
Technology readiness level
This technology is currently at Technology Readiness Level 3, indicating that active research and development are ongoing. The proposed formulations will undergo extensive testing to optimize polymer architecture, functional group content, and crosslinking density. Further validation will focus on achieving durable curing characteristics and assessing performance on ABS-keratin surfaces.
About Clemson University
Clemson University is a comprehensive public land‑grant research university in Upstate South Carolina with a main campus and statewide outreach. Industry engages through co‑located facilities: an automotive innovation campus in Greenville, an energy testing complex in Charleston, and a research and technology park near the main campus with labs and offices. A strong co‑op program and corporate engagement team connect companies with faculty expertise and student talent, while the Extension network supports field trials and regional pilots. Research is backed by competitive federal funding from agencies such as NSF, NIH, DOE, USDA, and DOD. A dedicated technology transfer office provides IP, licensing, and startup support with clear pathways for industry‑sponsored agreements.
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