2024/09/22
Pu in fridge
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.
ادامه مطلب 
2024/09/22
Properties of PU Foams
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.
ادامه مطلب 
2024/09/22
The use of polyurethane spray foam in livestock industry
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.
ادامه مطلب 
2024/09/22
Foam in place polyurethane foam for packaging
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.
ادامه مطلب 
2024/09/22
Odor problem in polyurethane foam
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.
ادامه مطلب 
2024/09/22
Polyurethane memory foam
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.
ادامه مطلب
2024/09/22
Introduction to Sprayed Polyurethane Foams
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
ادامه مطلب 
2024/09/22
In-Mold Coating for polyurethane foams
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
ادامه مطلب 
2024/09/22
Wood Imitation Polyurethane foam
The popularity of hard polyurethane foam has been very high and the parts produced using this type of foam are rapidly expanding the market and general use. This type of hard polyurethane foam is known in the Iranian commercial market as wood foam and in the global market as Wood imitation Polyurethane Foam.
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