Rigid foams serve as high-performance thermal insulation for roofs and walls, significantly reducing energy consumption.
Flexible foams provide the primary cushioning for mattresses and upholstered furniture. Polyurethane
This reaction is often facilitated by catalysts, such as or organometallic compounds (e.g., dibutyltin dilaurate). To create a solid foam, a "blowing agent" is added; commonly, water reacts with isocyanate to produce CO2CO sub 2 gas, which expands the polymer into a cellular structure. 2. Structure-Property Relationships Rigid foams serve as high-performance thermal insulation for
Used in seating for comfort, bumpers for impact resistance, and coatings for corrosion protection and aesthetics. such as or organometallic compounds (e.g.
Long, flexible polyol chains that provide elasticity and low-temperature flexibility.