Educational

Polyurethane foams are manufactured through a continuous slabstock production process or through a discontinuous (molded) process. Molding is the process of forming products by pouring or forcing molten or liquified material into a hard tool or mold.

Refrigerator-freezers are among the most common household appliances in the world. Refrigeration consumes about 6% of the total energy generated in the world and accounts for about 14% of the total household energy consumption.

Their properties are categorized based on the foam structure. The foam has two types of structure: (1) Open-cell structure (2) Closed-cell structure. Open-cell structured foam is as soft as like a cushion. The cell walls, or surfaces of the bubbles, are broken up and is filled up with air that fills up all the spaces in the material.

Farm buildings and warehouses are built according to rules and standards which facilitate food or grain storage. They are often exposed to fluctuations in moisture levels and water-vapor condensation. Most often, this problem affects buildings with metal roofs. This has a negative impact on animals if the building is used for animal breeding or storing food products.

Polyurethane foam packaging is an open cell material, has a density of from about 8 to about 15 kilograms per cubic meter, which is primarily used to protect and support lighter weight, delicate product with high fragility. The purpose of polyurethane foam in packaging is to act as a shock absorber, protecting a moving packaged object from damage as it meets impact resistance.

Odors are gaseous and volatile organic compounds (VOCs), which affect the health of an individual. The odorous compounds are either a component of foam formulation or formed as a byproduct during the polymerization reaction.

Memory foam is also known as viscoelastic foam. When you break this work apart, it comes from viscous + elastic. According to this naming, the foam has the properties of viscous and elastic materials at the same time. The mentioned property makes the foam to be able to closely contour to shapes.

SRAY-APPLIED POLYURETHANE foam is a unique roofing material. It is sprayed as a liquid directly onto the roofing substrate; within seconds it foams, expanding 20 to 30 times its original volume. The foam forms a fully adhered, closed cell structure that resists water infiltration while providing insulation

In-Mold Coatings (IMCs) have been developed to coat and cover surface defects of compression molded articles to provide a smooth high-quality surface having an aesthetically appealing appearance