کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
617491 | 1454995 | 2013 | 8 صفحه PDF | دانلود رایگان |

• Research investigates the solid-particle erosion of two self-healing coatings.
• High-viscosity healing agents reduce healing performance.
• Single-component reactive healing agents improve performance by nearly 300%.
• Solvent-based healing is ineffective for this damage mode.
Self-healing performance of a coating subjected to erosion damage is evaluated in this paper. Two self-healing coating systems, an elastomeric material with a two-part poly(dimethyl siloxane) healing chemistry and an epoxy coating with a one-part isocyanate-based healing chemistry. Coatings were microcapsule-based self-healing materials. Both systems were evaluated in a custom-designed particle erosion system. Results from the mass loss testing indicates that the elastomeric system did not successfully self-heal because of a combination of high viscosity and slow reaction kinetics. The isocyanate-based system did successfully self-heal when compared to a non-healing control. Mass loss was reduced by almost 300% for this material when compared to a microcapsule-filled non-healing coating.
Journal: Wear - Volume 307, Issues 1–2, 30 September 2013, Pages 218–225