TY - JOUR
T1 - Development of an epoxy based intumescent system comprising of nanoclays blended with appropriate formulating agents
AU - Kahraman, Havva Tutar
AU - Gevgilili, Halil
AU - Pehlivan, Erol
AU - Kalyon, Dilhan M.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - A novel intumescent coating technology for metallic surfaces was developed using functionalized clays, which were intercalated and exfoliated into nanodimensions. The nanoclays were formulated in epoxy resins and blended with appropriate additives to design intumescent coatings for metallic surfaces. With the high dispersion of nanoclay the flame retardancy is improved. The extent and the homogeneity of the exfoliation and dispersion of the clay particles were assessed employing small-amplitude oscillatory shear. The performance and properties of the coatings were evaluated by means of fire resistance testing, thermo-gravimetric analysis and mechanical properties. The incorporation of the nanoclays significantly increased the elasticity and the viscosity of the intumescent formulations and improved the fire resistance of the epoxy coatings. It is observed that significant gains in flame retarding properties could be achieved when the clay platelets could be adequately exfoliated and dispersed.
AB - A novel intumescent coating technology for metallic surfaces was developed using functionalized clays, which were intercalated and exfoliated into nanodimensions. The nanoclays were formulated in epoxy resins and blended with appropriate additives to design intumescent coatings for metallic surfaces. With the high dispersion of nanoclay the flame retardancy is improved. The extent and the homogeneity of the exfoliation and dispersion of the clay particles were assessed employing small-amplitude oscillatory shear. The performance and properties of the coatings were evaluated by means of fire resistance testing, thermo-gravimetric analysis and mechanical properties. The incorporation of the nanoclays significantly increased the elasticity and the viscosity of the intumescent formulations and improved the fire resistance of the epoxy coatings. It is observed that significant gains in flame retarding properties could be achieved when the clay platelets could be adequately exfoliated and dispersed.
KW - Coating
KW - Epoxy
KW - Flammability
KW - Intumescent
KW - Nanoclay
KW - Rheology
UR - http://www.scopus.com/inward/record.url?scp=84919431230&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84919431230&partnerID=8YFLogxK
U2 - 10.1016/j.porgcoat.2014.09.002
DO - 10.1016/j.porgcoat.2014.09.002
M3 - Article
AN - SCOPUS:84919431230
SN - 0300-9440
VL - 78
SP - 208
EP - 219
JO - Progress in Organic Coatings
JF - Progress in Organic Coatings
ER -