Please wait.'

Page is loading'


Home  > Raw materials & technologies  > Technologies  > Stimuli-responsive polyurethane-urea polym...

Wednesday, 17 July 2019
pdf
Raw materials & technologies, Technologies

Stimuli-responsive polyurethane-urea polymer for protective coating

Thursday, 11 July 2019

A recent article reports the synthesis of a polyurethane-urea coating with 1-(2-aminoethyl)-imidazolidin-2-one (UDETA) units showing temperature- and moisture-triggered self-healing.

Temperature-mediated self-healing can be performed from 80 up to 200°C (symbol image). Image source: bdyczewski / pixabay.

Temperature-mediated self-healing can be performed from 80 up to 200°C (symbol image). Image source: bdyczewski / pixabay.

Intrinsic self-healing coatings have been drawing more and more attention over recent years. A self-healing coating that is able to maintain its original appearance and Stimuli-responsive polyurethane-urea polymer for protective coatings performance after damage is attractive for a huge scope of applications.

The new article reports the synthesis of a polyurethane-urea coating with 1-(2-aminoethyl)-imidazolidin-2-one (UDETA) units showing temperature- and moisture-triggered self-healing. Calorimetric and spectroscopic analyses give insight into the self-healing mechanism showing that the absorbed water is able to disturb inter- and intramolecular hydrogen bonds of the polymer chains and decrease the glass transition temperature of the polymer. Temperature-mediated self-healing can be performed from 80 up to 200°C.

Polyurethane-urea polymer prove to be beneficial for damping applications

Aside from self-healing, the molecular dynamics in the polyurethane-urea polymer prove to be beneficial for damping applications as confirmed by dynamic mechanical analysis. Thus, the polymer system features properties that are useful for two different applications, namely in coatings with self-healing and corrosion protective properties and in dampening materials.

The article has been published in Journal of Coatings Technology and Research, Volume 16.

Image source: Pixabay.

top of page
Comments (0)
Add Comment

Post comment

You are not logged in

register