Production of Intumescent Rigid Polyurethane Foam
The process for production of polyurethane based plastic foams uses urethane groups to provide a wide range of mechanical properties, by reacting relatively high molecular weight polyhydroxy compounds and if desired chain extenders or cross linking agents with organic polyisocyanates in the presence of catalysts and blowing agents.
RIGID POLYURETHANE FOAM PROPERTIES
- To produce an intumescent char on burning to meet furnace testing condition of ASTM E2230
- To have partial open cell structure with the ability to absorb energy on impact from 9m without splintering as per IAEA Regulation
- To maintain a minimum Heat Release Rate (HRR) to withstand sustained temperature of 8000C for 30 minutes
ADVANTAGE
- Use of low cost material with indigenous technology for producing the foam.
APPLICATION
- The polyurethane foam is suitable for shock and heat shield for transportation packages of radioactive/other materials weighing upto 100 kgs.
