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Polyurethane Foam Chemical Demonstration

Polyurethane Foam System
Polyurethane foam system, polyether polyol, polyfunctional isocyanate
viscous liquids, polymers, catalysts, foam
Polyurethane foam system, polyether polyol, polyfunctional isocyanate
Polyurethane Foam System
Polyurethane foam system, polyether polyol, polyfunctional isocyanate
viscous liquids, polymers, catalysts, foam
Polyurethane foam system, polyether polyol, polyfunctional isocyanate
Try this amazing demonstration! Simply mix two viscous liquids together and watch as the mixture expands to about 30 times its original volume. The result is a hardened, lightweight polyurethane foam. Teacher Demonstration Notes included.

Concepts: Polymers, catalysts.
Time Required: 10 minutes
Chemicals Provided: Polyurethane foam system, Parts A and B.

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Hazard Alert

Solution “A” contains a polyether polyol, a tertiary amine and a silicone surfactant. Provide adequate ventilation and wear protective clothing. Solution “B” contains a polyfunctional diisocyanate. Provide adequate ventilation and avoid any body contact. Wear chemical splash goggles, chemical gloves, apron and mix under a hood or with adequate ventilation.

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Product Details

Storage:
Liquid “A” Organic #2, Liquid “B” Organic #5
Disposal:
Mix, form foam then #26a.
Shelf Life:
Do not store longer than three years.
Soluble:
Acetone and some other organic solvents.
Color:
Solution A: Yellow/amber, Solution B: Brown/amber
Odor:
Solution A: Rubber-like, Solution B: None
Technical Note:
A package that consists of two viscous liquids. When these substances are mixed, a rigid foam is produced. The volume of foam produced is 20–30 times larger than the original mixture. Liquid “A” is a polyether polyol. Liquid “B” is a polyfunctional isocyanate. Two pound set.