The difference between memory foam and ordinary sponge

Memory foam products have been popular all over the world for many years and have always been enduring. This is because mattresses and pillows with memory foam as fillers have unparalleled comfort and health care.

       However, as ordinary consumers, they feel very mysterious because they don't know much about memory foam. In fact, memory foam is just one type of Polyurethane Foam, which is what people usually call sponge, but some special additives are added in the production process, such as: modified polyether polyol, pore opener, special silicone oil, etc.

       There are many types of polyurethane materials, including rigid foam, flexible foam, semi-rigid foam, self-skinning and microcellular elastomers, etc. Memory foam is a special soft foam with viscoelasticity with special additives added. , Its base raw materials are not much different from ordinary sponge raw materials, but some special additives are added. So, what is the difference between memory foam and ordinary sponge?

       The fundamental difference between memory foam and ordinary sponges is that memory foam is both elastic and viscous, that is, the rebound time, while ordinary sponges have only elasticity but not viscosity, and memory foam also has temperature-sensing characteristics that ordinary sponges do not have.

       Take memory foam mattresses and foam mattresses for example:

       Ordinary sponge mattresses are generally made of polyurethane sponge materials, which have high resilience and air permeability, and a high compression load ratio. Some fire-retardant or flame-retardant sponges also have good flame resistance, and their heat aging, wet aging and sports Fatigue is also good, and the range of options is extremely wide, mainly used for sponge mattresses, sofa sponges, furniture sponge accessories and so on. Some foam mattresses are also called sponge mattresses. They are soft, portable and lightweight, and are especially suitable for people who move frequently. The disadvantage is that it is easy to deform. It is necessary to repeat the pressing test when selecting, it is not easy to sag, and the foam mattress that rebounds quickly is a good foam mattress.

       Memory foam is also called slow rebound sponge, space cotton, etc. It has good protection, good shock absorption and temperature resistance. The density, hardness and rebound time can be adjusted as needed. Slow rebound foam mattress and memory foam mattress can relieve human fatigue, are soft and comfortable, can promote people to sleep quickly, can effectively resolve human body pressure to zero, counteract the force, and provide you with the most even and true support. The parts of the body that are in contact for a long time are in a stress-free state, which does not hinder blood circulation and is not prone to fatigue and soreness, thus reducing the number of unnecessary turning over during sleep. It is especially suitable for insomnia, stiff neck, cervical spondylosis, and pregnant women. It is made of high-density polyurethane, which can tightly adhere to the body and reduce the pressure on the body. Memory foam is sensitive to temperature and will be adjusted according to body temperature. People with neck and lumbar spine problems can choose this kind of mattress, which can bring stress-free support.