The main constituent of memory foam is polyurethane. They are chemical substances with linear polymers which are made of carbamate groups (-NHCO2). These groups are called urethane, formed by the chemical reaction between a polyol and a diisocyanate. Polyol is a multiple hydroxyl group bearing alcohol and diisocyanate has two isocyanate groups. Isocyanate is a functional group with a single nitrogen, carbon and oxygen molecule. The ratio of polyol and diisocyanate used for the process is 1:2. When these compounds react with water, in the presence of catalysts like tin and amines, it forms cells which are very similar to bubbles. The size of the bubbles is controlled by surfactants, which lowers the liquid surface tension.
This reaction is an exothermic reaction and the product formed is a liquid. The liquid is then dispensed into a mold, where it expands. The expansion of the liquid is like dough and hence the liquid is called as a 'bun'. The expanded liquid dries up to form the foam or polyurethane. This polyurethane when combined with other chemicals, which are trade secrets, produces the foam of varying densities and elastic properties. After combining other chemicals with polyurethane, the mixture is allowed to dry. Then it is cut or clipped into the desirable sizes for its variety of use. The entire reaction takes about 5 minutes.
Memory foam mattress is a kind of mattress that is made from polyurethane. Besides polyurethane, it is also made from other types of chemicals. The chemicals that are added to the mattress foams gives it the ability to increase in density. mattress news today Memory foam mattress is also called visco elastic polyurethane foam. The mattress was developed in order to meet the demand of the mattress shoppers.
The history of the Memory Foam Mattress can be traced back to NASA's Ames Research Center. NASA's Ames Research Center funded a project to design a mattress foam that can help to relieve back pain of the astronauts caused by g-forces in the 1970s. NASA believed that the foam material should be used to conform to the shape of the body. Though creating a mold for the body can help to solve the problem, the person would eventually move out of the position. As a result, incorrect pressure points will be formed on the body. Later, the research team from NASA's Ames Research Center found a way to create a foam that can conform the body's shape. It is a visco elastc foam that can evenly distribute the weight of the body to the foam surface.
The discovery caused Fagerdala World Foams of Sweden to experiment with it and sell it to the consumers. In 1991, Tempur Pedic, a company based in Sweden sold the research mattresss foam to the people in Sweden. After that, Tempur Pedic sold the memory mattress foam to the people that live in United States and Canada. Tempur Pedic's mattress became very popular. The success of Tempur Pedic had caused the manufacturers to create their own versions of memory foam mattresses and sell them to the local consumers.
One question that we often hear from first-time foam bed buyers deals with concerns regarding the presence of harmful chemicals in memory foam. Because the foam has a distinct scent, many people are worried that the off gases given off by the material and the chemicals used in its creation can be dangerous. And while it's true that some manufacturers - especially low quality, Asian-made memory foam - does contain some harmful chemicals, most American-made memory foams are 100 % safe.
Are USA made memory foam mattresses safe?
Bayer memory foam and Foamex foam are among the most high-quality memory foam manufacturers that are based in the United States. American manufacturers must adhere to certain regulations that ensure the products are safe. When you receive your mattress, you may notice a particular scent wafting from the memory foam. This is completely normal, and completely safe. It is recommended that you allow the memory foam to air out for up to 24 hours to reduce the scent, which occurs when the packaging traps the smell of the harmless chemicals used in the manufacturing process in the foam.
At the end of the day, though, the bottom line is that most domestic memory foams - including the line of Bayer and Foamex - are completely safe!
Sleep is a very serious issue. We spend half our lives asleep so getting the perfect mattress should be prioritised. Not only is a mattress important for a perfect night's sleep but it is also important for those who suffer from aches and pains A poor mattress can hurt you - literally.
Two of the most popular types of mattress these days are memory foam and latex foam. Many people struggle to choose between the two types of foam for the best choice of mattress for them. This article gives you a break down of the differences between the foam so you can make an informed and confident decision about your purchase.
Memory Foam
Memory foam is popular because it is supportive, comfortable and known to help those who struggle to get a restful night's sleep. It is usually made from visco elastic foams that contour to your body. The more dense the foam is, the firmer the mattress is. However having a dense mattress also means it will last longer, and some of the problems associated with low density memory foam is that they tend to "stop working" sooner and potentially cost you more money in the long term. Density also matters in relation to your body weight too, so when choosing a mattress make sure it can withstand your weight!
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