Enhanced modulus and dimensional stability
 Improved chemical resistance
 Decreased gas and liquid permeability
 Decreased flammability
 Decreased cell size and thermal conductivity
 Results and discussion
 Lower the surface tension of the Urethane system to facilitate
a mix of raw materials and the air bubbles grow.
 Lower between air bubbles and other one’s pressure,
and prevent the spread of gas.
 Increasing and uniformalizing size to make the Urethane cells.
① Dispersion of caly in
② Mixing other material
(forming agent, Bridge
reaction catalyst.. )
③ Mixing MDI & mixture
 Effects of Ultrasound on the Synthesis and
Properties of Polyurethane Foam
,Clay Nanocomposites, W.J.Seo and 8
 POLYURETHANE [PU tech] - www.pufoam.com
 Polyurethane Form - Clay Nanocomposites
,Nanoclays as Cell Openers - G.Harikrishnan
 R. M. Hill, “Silicone Surfactant”, marcel Dekker, New York, pp.141~142