Self-Healing Coatings: Applications, Markets and Companies

New-generation protective coatings should intelligently respond to mechanical or chemical damage caused by the external environment and reproduce their original properties, including their adhesion to the substrate and integrity. Self-healing coatings are produced using macromolecular compounds, ceramics, metals and composites and allow for:

• Increased asset service life.
• Ease of repair.
• Lower environmental impact.
• Improved part functionality and reliability.
• Improve public safety.

The self-healing action of such coatings is activated by appropriate stimuli: temperature changes, radiation, pH changes, pressure changes and mechanical action.

Published March 1 2019 | 22 pages

TABLE OF CONTENTS

1    TECHNOLOGY OVERVIEW……………………………………………………… 6

• 1.1     Types of self-healing coatings…………………………………………………………………………………………………… 6
  • 1.1.1       Anti-corrosion……………………………………………………………………………………………………………….. 6
  • 1.1.2       Scratch repair……………………………………………………………………………………………………………….. 6
• 1.2     Extrinsic self-healing………………………………………………………………………………………………………………. 9
  • 1.2.1       Capsule-based……………………………………………………………………………………………………………… 9
  • 1.2.2       Vascular self-healing……………………………………………………………………………………………………… 9
• 1.3     Intrinsic self-healing……………………………………………………………………………………………………………….. 9
• 1.4     Healing volume……………………………………………………………………………………………………………………. 10
• 1.5     Polyurethane Clear Coats………………………………………………………………………………………………………. 12
• 1.6     Micro/Nanocapsules……………………………………………………………………………………………………………… 12
• 1.7     Microvascular networks…………………………………………………………………………………………………………. 13
• 1.8     Reversible polymers……………………………………………………………………………………………………………… 13
• 1.9     Click polymerization……………………………………………………………………………………………………………… 14
• 1.10        Polyampholyte hydrogels…………………………………………………………………………………………………… 14
• 1.11        Shape memory………………………………………………………………………………………………………………… 14

2    APPLICATIONS……………….. 16

3    GLOBAL MARKET SIZE……………………………………………………………….. 17

4    COMPANIES…………………………………………………………………………… 19 (25 company profiles)

5    REFERENCES………………………………………………………………………. 21

TABLES

• Table 1. Types of self-healing coatings and materials………………………………………………………………………………… 6
• Table 2. Comparative properties of self-healing materials……………………………………………………………………………. 7
• Table 3. Comparison of self-healing systems………………………………………………………………………………………….. 10
• Table 4. Self-healing materials and coatings markets and applications…………………………………………………………. 17
• Table 5. Global market revenues and outlook for advanced self-healing coatings market…………………………………. 17
• Table 6. Advanced self-healing companies and products…………………………………………………………………………… 19

FIGURES

• Figure 1. Schematic of self-healing polymers. Capsule based (a), vascular (b), and intrinsic (c) schemes for self-healing materials.  Red and blue colours indicate chemical species which react (purple) to heal damage…………………… 8
• Figure 2. Stages of self-healing mechanism…………………………………………………………………………………………….. 8
• Figure 3. Self-healing mechanism in vascular self-healing systems………………………………………………………………. 9
• Figure 4. Microspheres incorporating self-healing materials……………………………………………………………………….. 11
• Figure 5. Flow of self-healing materials into the crack site…………………………………………………………………………. 11
• Figure 6. Schematic of the self-healing concept using microcapsules with a healing agent inside………………………. 12
• Figure 7. UV-curable shape memory coating………………………………………………………………………………………….. 16