Polyurethanes in sandwich panel systems
Sandwich panels, produced by filling in a thick and low density insulation material between two thin and high density metal surfaces...
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What is imitation wood polyurethane rigid 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...
Polyurethane foam in place packaging
Polyurethane foam packaging is an open cell material, has a density of from about 8 to about 15 kilograms per cubic meter...
Polyurethane foam in household refrigerators
Refrigerator-freezers are among the most common household appliances in the world.....
Common solvents in polyurethane industry
Polyurethanes are polar and so you need a polar solvent. The choice of solvent to dissolve a polymer is governed by various factors...
Handling polyurethane raw materials(isocyanates and polyols)
Time and temperature are the two primary factors that influence product quality.....
How to perform a cup test?
This foaming process is also called hand mixing. It is used as a simple method of evaluating foaming systems for ...
Yellowing in polyurethane foam
Almost all polymers are prone to yellowing during processing and use, and the most fundamental reason for yellowing is ....
Imitation wood polyurethane rigid foam
In recent years, people’s environmental awareness has been increasing, which has led to...
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....
