Abstract
Castor oil based diethanolamine modified rigid polyurethane (PU) foam formation and its reaction rate kinetics have been studied during the present work. Physico-chemical properties of the synthesized base polyol such as acid value, hydroxyl value and viscosity have been measured. Rigid (PU) foam processing parameters such as mixing time, cream time, gel time, rise time and tack free time were measured at temperature 22 o C and 70% humidity. Rigid foam kinetic investigations with different catalysts such as triethylene diamine (TEDA), diethyl methylamine (DEMA), triethylamine (TEA) and cocadimethylamine (CDMA) at different concentration were studied using foam-processing parameters. The properties such as density, water absorption, compression strength and dimensional stability have also been measured. There are other many systems of polyurethanes like elastomers adhesives etc. which can be prepared from natural resources based, which are easily available in our country.
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