Naslov
Self Healing Coatings

Autori
Assarian, Arezoo ; Martinez, Sanja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
X. Meeting of young chemical engineers

Mjesto i datum
Zagreb, Hrvatska, 20.02.2014. - 21.02.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Self healing coatings ; Smart coatings ; Polyurethane ; microcapsule ; hardness

Sažetak
Great progress has been made in the development of polymers with nanotechnology. One type of smart coatings which present a new generation of coatings are based on self-healing materials, and are called the “self-healing coatings”. In order to achieve to the goal of self-healing property, many method have been applied. Among them are applications of nano catalysts and microcapsules. Self-healing polymers mend themselves by reforming broken cross-linking bonds. The advantage of using these coatings is to stop the onset of corrosion at the metallic substrate in the area of coating damage. This would considerably lessen the costs of coating maintenance. Development of the self-healing coatings is just at its beginning. Some examples of real self healing ability are given by the activity of microcapsules. Efforts are made to embed into the coating, tiny liquid-filled capsules that rupture when a scratch occurs and spill healing agents into the damaged area. Self- Healing coatings that spontaneously and independently repair themselves so are also called 'Terminator' Polymers. We are focused on changing of some properties of the self-healing coating materials. The main purpose of this work is to increase the coating hardness and adhesion. The important factor is to improve the scratch resistance of the metal surfaces. The conventional polyurethane two components coating has good hardness and adhesion, but it is still important to increase the ability of the self- healing layer against mechanical damages to achieve a highly protective coating. A microencapsulated healing agent is embedded in a structural composite matrix containing a catalyst capable of polymerizing the healing agent. The hardness of the self-healing polyurethane coatings has been improved by using microcapsules.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

POVEZANOST RADA