Encapsulated Self-Healing Polymer
Microcapsule-Embedded Polymer for Small Breach Self-Repair
The encapsulated self-healing polymer is a 20-kilogram composite layer containing rupture-triggered microcapsules that autonomously release monomer and catalyst to seal structural breaches up to 1 millimeter wide. Operating at zero watts of power across a 15-year design life, the material sustains up to three healing cycles without manual intervention. Maintaining pressure containment on the lunar surface is complicated by material aging under hard vacuum and extreme 300 K temperature swings, which degrade conventional barriers over extended deployments. When physical damage cracks the matrix, the embedded capsules rupture directly into the fault and polymerize to restore barrier integrity.
Polymer layer embedded with rupture-triggered microcapsules that release sealing monomer + catalyst on damage, autonomously sealing small breaches.
Purpose
Polymer layer embedded with rupture-triggered microcapsules that release sealing monomer + catalyst on damage, autonomously sealing small breaches.
Context
Child of L2-MMD-HEAL within the Lunar Ark system
Principles
- ▸Microcapsules contain healing agent (DCPD, alkyl-borane, etc.)
- ▸Rupture releases agent into damage site
- ▸Polymerization seals the breach
- ▸Self-healing for breaches <1 mm
- ▸Multi-cycle capability with refresh
Typical implementations
- ▸University of Illinois self-healing polymer research
- ▸Aerospace self-healing materials studies
- ▸NASA self-healing polymer demos
Lunar considerations
- ▸Long-mission polymer aging compensated by encapsulated chemistry
- ▸Limited to small breaches — larger requires L1-MNT repair
- ▸Periodic refresh of capsule layer via L1-MFG
Specifications
Functional
| primary function | Polymer layer embedded with rupture-triggered microcapsules that release sealing monomer + catalyst on damage, autonomously sealing small breaches. |
| breach size mm max | 1 |
| cycles | 3 |
Physical
| mass kg | 20 |
| materials | Microcapsule polymer composite, Catalyst layer, Stainless reinforcement |
| vacuum compatibility | True |
Operational
| power consumption w | 0 |
| thermal range c | -40, 70 |
| lifetime years | 15 |
| mtbf hours | 100000 |
Interfaces
Provides
- Autonomous small-breach sealing
Requires
- Replacement polymer layer production
Cite this entry
Lunar Ark Codex. "Encapsulated Self-Healing Polymer" (L3-MMD-HEAL-CAPS). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-MMD-HEAL-CAPS
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.