Effect of binder on performance of intumescent coatings

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Joana T. Pimenta (Author) FEUP; Carlos Gonçalves (Author) Other; Loic Hiliou (Author) Other; Jorge F. J. Coelho (Author) Other; Fernão D. Magalhães (Author) FEUP

Journal

Title: Journal of Coatings Technology and Research

Vol. 13 No. 2

Pages: 227-238

ISSN: 1945-9645

Publisher: Springer

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 10 Citations

INSPEC

Associated Projects

RHED - Revestimentos híbridos de elevado desempenho

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

PTDC/EQU-EQU/65300/2006 - Nanocompósitos de óxidos metálicos para melhoria da resistência química e ambiental de revestimentos orgânicos

Other information

Authenticus ID: P-00G-SHP

DOI: 10.1007/s11998-015-9737-5

Abstract (EN): This study investigates the role of the polymeric binder on the properties and performance of an intumescent coating. Waterborne resins of different types (vinylic, acrylic, and styrene-acrylic) were incorporated in an intumescent paint formulation, and characterized extensively in terms of thermal degradation behavior, intumescence thickness, and thermal insulation. Thermal microscopy images of charred foam development provided further information on the particular performance of each type of coating upon heating. The best foam expansion and heat protection results were obtained with the vinyl binders. Rheological measurements showed a complex evolution of the viscoelastic characteristics of the materials with temperature. As an example, the vinyl binders unexpectedly hardened significantly after thermal degradation. The values of storage moduli obtained at the onset of foam blowing (melamine decomposition) were used to explain different intumescence expansion behaviors.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12