Viscosity the material moves slowly and reluctantly when pressure is applied.
What is memory foam mattress made of.
The foam bubbles or cells are open effectively creating a matrix through which air can move.
The difference is that memory foam is viscoelastic or reacts and softens when subjected to heat.
Greener versions of memory foam use plant based ingredients like soybean oil in place of some of the petroleum derivatives memory foam s distinguishing feature is that it softens in response to heat and pressure.
Memory foam starts its life as polyurethane foam a material first manufactured in the 1950s by adding water halocarbons or hydrocarbons to a polyurethane mix.
What is it made of.
Memory foam is what is known as viscoelastic polyurethane foam or low resistance polyurethane foam lrpu.
Ultimately these chemicals affect two of the main qualities of memory foam.
It is created by adding various compounds and additives to polyurethane which change depending on the type of foam being created.
Memory foam memory foam consists mainly of polyurethane as well as additional chemicals increasing its viscosity and density.
A memory foam mattress is one made from viscoelastic foam a type of high density polyurethane foam.
It is often referred to as viscoelastic polyurethane foam or low resilience polyurethane foam lrpu.
Depending on the chemicals added and the way it is processed polyurethane can form anything from car parts to spray liner or in this case one of the most comfortable sleeping surfaces the world has ever seen.
First designed in the mid 1960s for nasa airplane seats memory foam is made from a substance called viscoelastic.
Memory foam is polyurethane combined with some chemicals that allow it to contour to your body.
It is both highly energy absorbent and soft.
Memory foam is a chemically produced synthetic mattress foam not too dissimilar to other foams you may have around the house.
Memory foam mattresses are made of polyurethane which was initially created for nasa but has since evolved into one of the most common materials used in furniture.