Abstract:
Sommary :Our study focuses on the synthesis and modeling of rigid polyurethane. It has
been developed by an addition reaction between isocyanate and polyol using the
three physical blowing agents (C5, n-P5 and DCM) and a chemical blowing agent
(CO2) whose purpose is to replace environmentally harmful blowing agents such as
HCFCs and HFCs) and at the same time to obtain a material with good thermal
insulation.
Equipment and a specific experimental method have been developed. This
made it possible to carry out various experiments on the development of
polyurethane foams in terms of temperature profiles and foam rise height. These
parameters are strongly dependent on the ratio, types of blowing agent and additives.
Several mathematical models were detailed. These models have allowed to
study the kinetics of polymerization by investigating the evolution of the conversion
rate and the determination of the kinetic parameters of the reaction
