Self-healing polymers and coatings in 2026: overview
Self-healing polymers and coatings are designed to repair damage or restore function without conventional external repair. They use reversible interactions within the material or healing agents released at a damaged site. The goal is not only to close cracks, but to recover useful properties such as strength, conductivity or corrosion protection. The engineering challenge is balancing reliable healing with durability, processability and the conditions needed to activate repair.
Recent work is pairing repair with other functions. In September 2026, a study from the Czech Academy of Sciences and University of West Bohemia described interpenetrating epoxy networks with reversible covalent bonds that heal microcracks and electrical tree damage. A separate September 2026 study developed an antibacterial self-healing coating using inhibitor-loaded core-shell nanofibers in silver-modified epoxy. Research directions also include bio-based photopolymers, self-healing battery electrolytes and coatings that actively protect against corrosion. Multifunctional protection is becoming a clear design goal.
- 1Repair plus protection: Coating designs increasingly combine crack repair with active corrosion inhibition or other functions, aiming to restore protection rather than merely seal visible damage.
- 2More than one mechanism: Dynamic covalent bonds, supramolecular interactions and stored healing agents offer different routes to repair, with trade-offs in activation, repeatability and material complexity.
- 3Healing moves into devices: Research on electrolytes, sensors and actuators points to demand for materials that recover functional performance, not just structural integrity.
Top organizations working on self-healing polymers and coatings
Ranked by Linknovate activity score · last 24 monthsThe activity score adds up the relevance of every patent, publication, grant and news item linking an organization to self-healing polymers and coatings. Showing 7 of 1,407 organizations.
| # | Organization | Approach | Signals (24 mo) | Momentum | Why it matters |
|---|---|---|---|---|---|
| 1 | 
Chinese Academy of Sciences CAS
Research · China |
Dynamic covalent networks | PUB 140 · NEWS 30 | -21% | CAS-affiliated researchers are developing self-healing coatings using dynamic disulfide bonds and MXene, alongside microvascular coatings designed to restore anticorrosion protection and report damage. |
| 2 | 
Nanjing University of Science and Technology
Research · China |
Dynamic covalent networks | PUB 113 | -29% | Recently, Nanjing University researchers reviewed dynamic sulfur–sulfur bonds for self-healing polymers and investigated reversible Diels–Alder networks for flame-retardant lignin-based materials. |
| 3 | 
University of Sichuan
Research · China |
Dynamic covalent networks | PUB 105 | -22% | Recently, Sichuan University researchers developed PDMS elastomers combining hydrogen-bonding and covalent adaptable networks, and investigated Diels–Alder chemistry for recyclable, flame-retardant thermosets. |
| 4 | 
Beijing University of Chemical Technology
Research · China |
Supramolecular networks | PUB 74 | -46% | Recently, Beijing University of Chemical Technology researchers designed dynamic interpenetrating polymer networks to heal membrane defects and recover separation performance; its work also covers intrinsic self-healing elastomers. |
| 5 | 
Tianjin University
Research · China |
Supramolecular networks | PUB 61 · NEWS 6 | -19% | Recently, Tianjin University researchers made transparent, self-healing poly(thiourethane) elastomers using zinc–pyrimidine coordination; other work explores self-healing polymer brushes and polyolefins. |
| 6 | 
Jilin University
Research · China |
Supramolecular networks | PUB 63 · NEWS 9 | +6% | Recently, Jilin University researchers developed a squid-inspired, self-renewing antifouling coating with self-healing behavior, optical protection and contact-killing antibacterial properties. |
| 7 | 
University of Chinese Academy of Sciences
Research · China |
Dynamic covalent networks | PUB 66 | +13% | Recently, University of Chinese Academy of Sciences researchers developed a self-healing polyurethane/epoxy network with dopamine-functionalized MXene for corrosion protection; other work targets self-healing rubber and underwater elastomers. |
| 8 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 9 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 10 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
Leading research centers
Leading research institutions 1,271 total
- Chinese Academy of Sciences CASChinaCAS-affiliated researchers are developing self-healing coatings using dynamic disulfide bonds and MXene, alongside microvascular coatings designed to restore anticorrosion protection and report damage.
- Nanjing University of Science and TechnologyChinaRecently, Nanjing University researchers reviewed dynamic sulfur–sulfur bonds for self-healing polymers and investigated reversible Diels–Alder networks for flame-retardant lignin-based materials.
- University of SichuanChinaRecently, Sichuan University researchers developed PDMS elastomers combining hydrogen-bonding and covalent adaptable networks, and investigated Diels–Alder chemistry for recyclable, flame-retardant thermosets.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
Where self-healing polymers and coatings innovation happens
Share of documents with at least one organization from each country.
Open the interactive map with all 1,407 organizationsMain technical approaches
Last 24 months| Approach | What it is | Documents | Leading organizations |
|---|---|---|---|
| Microcapsule and vascular systems | Embedded capsules or channels release healing agents at damage sites; they offer localized repair but depend on finite reservoirs and complex material architectures. | 525 |
Nanjing University of Science and Technology, BASF, Covestro |
| Dynamic covalent networks | Reversible covalent bonds allow polymer networks to reconnect after damage; healing can be robust, but often depends on suitable activation conditions. | 727 |
Chinese Academy of Sciences CAS, Nanjing University of Science and Technology, University of Sichuan |
| Supramolecular networks | Reversible noncovalent interactions, such as hydrogen bonding, reconnect polymer chains; they can support repeated healing but may compromise strength or stability. | 563 |
Chinese Academy of Sciences CAS, Nanjing University of Science and Technology, Tianjin University |
| Chain-diffusion and thermoplastic healing | Mobile polymer chains diffuse across damaged interfaces, often with heat; this avoids stored healing agents but requires chain mobility and intimate contact. | 162 |
Chinese Academy of Sciences CAS, Seoul National University, Chart Industries |
| Stimuli-assisted crack closure | Heat, light or another stimulus drives crack closure or bond exchange; external activation adds control but can limit use where the stimulus is unavailable. | 549 |
BASF, Covestro, Evonik Industries |
Emerging trends
Last 12 months vs previous 36 monthsTerms whose frequency in the last 12 months grew the most compared with the previous 36 months.
Funding and investment
Recent funding rounds
Recorded grants total $91,503,041 across 106 grants since 2020.
Patent landscape
Top patent holders · last 24 monthsRecent developments
Latest news, duplicates removed- Sep 2026A single application of ‘smart’ self-repairing coating is being developed to dramatically extend rust protection for buildings, bridges, cars and other steel components. University of Queensland nanomaterials experts…AZoNano.com - Nanotechnology News Feed
- Sep 2026Solid-state lithium-metal batteries are considered a leading candidate for next-generation energy storage due to their high energy density and improved safety. However, their practical application has been hindered by…Scientific Inquirer
- Aug 2026Affiliate links on Android Authority may earn us a commission. Learn more. The Galaxy S27 Ultra may debut with self-healing glass Aug 24, 2026 — 3:18 PM ET - A rumor claims glass used in the Samsung Galaxy S27 Ultra…Android Authority
- Jun 2026Austin, June 09, 2026 (GLOBE NEWSWIRE) -- According to SNS Insider, The Smart Coatings Market was valued at USD 7.07 Billion in 2025 and is expected to reach USD 44.32 Billion by 2035, growing at a CAGR of 20.1% over…GlobeNewswire: Market Research Reports
- Month 20XXHidden developmentAvailable to registered users with alerts enabled.
Frequently asked questions about self-healing polymers and coatings
Which universities and research centers lead self-healing polymers and coatings research?
Chinese Academy of Sciences CAS leads the listed research organizations with 170 documents in the 24-month window; Nanjing University of Science and Technology follows with 113. University of Sichuan has 105, while Tianjin University has 67. Their work includes dynamic polymer networks, self-healing coatings and elastomers.
Who holds the most self-healing polymers and coatings patents?
University of Oulu and DIC are joint leaders among the listed patent holders, with 5 patents each. Dic Corporation has 4, while Samsung, Cukurova University, Hyundai Motor Company and Samsung SDI Co., Ltd. each have 3. These are listed holder counts, not a measure of patent quality or commercial value.
Is self-healing polymers and coatings patent activity growing?
No: patent activity declined 50% in the last 12 months compared with the previous 12 months. The 24-month window contains 141 patents. Publication activity moved in the opposite direction, with 2,252 publications in the last year and growth of 5.1% versus the previous 12 months.
What are the applications of self-healing polymers and coatings?
Electronics and robotics lead the listed application areas with 902 documents, followed by biomedical materials with 762. Structural composites account for 493 documents, corrosion protection for 490, and energy storage for 450. These applications seek different forms of recovery, from restoring a protective barrier to maintaining electrical or mechanical function.
What are the main approaches in self-healing polymers and coatings and how do they differ?
Dynamic covalent networks have 727 documents, compared with 563 for supramolecular networks and 525 for microcapsule and vascular systems. The approaches differ in how they reconnect damage: reversible bonds, noncovalent interactions, or released healing agents. Chain diffusion and thermoplastic healing offers another route, while stimuli-assisted methods use an external trigger.
Which countries lead self-healing polymers and coatings?
China leads with 9,393 documents, followed by the United States with 5,723 and Germany with 1,844. India and Japan have 1,648 and 1,638 documents, respectively. These country figures describe document activity, not the location of all production or commercial deployment.
What are the latest developments in self-healing polymers and coatings?
In September 2026, researchers from the Czech Academy of Sciences and University of West Bohemia reported epoxy networks that heal microcracks and electrical tree damage. Also in September 2026, a study described an antibacterial coating made with inhibitor-loaded core-shell nanofibers in silver-modified epoxy. Other recent directions include bio-based photopolymers and self-healing polymer electrolytes.
What new methods or terms are emerging in self-healing polymers and coatings?
Crosslinking appears in 163 documents and hydrogels in 137; elastomers appear in 83. Recent methods include reversible sulfur–sulfur bonds, dynamic interpenetrating networks and inhibitor-loaded nanofibers. These examples reflect interest in combining repair with tailored mechanical, protective or electrical properties.
How much funding has self-healing polymers and coatings received?
Recorded grants total $91,503,041 across 106 grants since 2020. The funding figure is stated in US dollars. It describes grants recorded for the topic; it should not be treated as a complete measure of private investment or total research spending.