Related Experiment Video
Updated: Jul 24, 2025
08:40
TAPE: A Biodegradable Hemostatic Glue Inspired by a Ubiquitous Compound in Plants for Surgical Application
Published on: June 8, 2016
14.2K
Puncture-resistant self-healing polymers with multi-cycle adhesion and rapid healability
Bingrui Li1, Sirui Ge2, Sheng Zhao3
1The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, USA.
Materials Horizons
|July 5, 2023
Summary
Researchers developed urea-modified poly(dimethylsiloxane)-based self-healing polymers (U-PDMS-SPs) that offer superior puncture resistance and rapid autonomous self-healing capabilities. These advanced materials demonstrate enhanced longevity and tunable mechanical properties for diverse applications.
Area of Science:
- Materials Science
- Polymer Chemistry
Background:
- Self-healing materials enhance product longevity and failure resistance through intrinsic repair mechanisms.
- Incorporating self-healing moieties into puncture-resistant materials improves durability by rebuilding bonds to resist external forces.
Purpose of the Study:
- To develop novel urea-modified poly(dimethylsiloxane)-based self-healing polymers (U-PDMS-SPs).
- To evaluate the puncture resistance, autonomous self-healing, adhesion, and mechanical properties of U-PDMS-SPs.
Main Methods:
- Synthesized U-PDMS-SPs with controlled chemical and physical cross-links.
- Characterized mechanical properties including extensibility and toughness.
- Assessed autonomous self-healing kinetics and multi-cycle adhesion.
- Tested puncture resistance according to ASTM D5748 standard.
Main Results:
- U-PDMS-SPs achieved 528% extensibility and 0.6 MJ m-3 toughness.
- Demonstrated 25% strain recovery in 2 minutes and over 90% toughness recovery in 16 hours.
- Exhibited exceptional puncture resistance (>327 mJ) and multi-cycle adhesive properties, proving unbreakable under ASTM D5748.
Conclusions:
- Tailored U-PDMS-SPs offer a promising platform for high-performance self-healing materials.
- The combination of puncture resistance and rapid self-healing presents significant potential for applications in adhesives and roofing materials.
- These materials can lead to enhanced longevity and improved performance in various functional material designs.
