What is memory foam？
Memory foam has many scientific names, including inert cotton, space memory foam, zero-pressure memory foam, etc. It is a polyurethane polymer with an open unit structure. The memory foam on the market is mainly made of polyurethane and other plastics. It is formed by mixing shaped and catalytic materials and then foaming.
The source of memory foam
Memory foam has become popular in China in recent years and is widely used in various fields, such as mattresses and pillows that we use every day, as well as seats in public transportation.
Memory foam material is full of our lives, but it is not a new material. It was born in the 1960s by NASA as a material with decompression properties developed to reduce the tremendous pressure that astronauts endure when leaving the ground.
Advantages and Disadvantages of Memory Foam
Advantage
Slow rebound
The most significant advantage of memory foam is its slow rebound. It will collapse when pressed with your hand. The memory foam will "remember" the shape of the fingerprint. It does not have strong rebound force. It will slowly return to its original shape after taking the hand away. It has strong pressure relief ability and can Distributes pressure evenly and provides even support.
Sensing temperature and pressure reduction
The memory foam material can change the softness and hardness according to the temperature. It will slowly become softer as the temperature rises. When the human body comes into contact with the memory foam, the memory foam will sense the human body temperature, become soft and evenly absorb the human body pressure. , so mattresses and pillows made of memory foam have a higher degree of fit with the human body.
Shortcoming
Strong heat storage
Memory foam has a certain degree of heat retention and may be a bit hot when used in the summer. However, almost every household has to turn on air conditioners or fans in the summer. Some businesses also use cooling fabrics on pillowcases. This is not a big deal Impact.
Memory foam pillow selection tips
Good memory pillows have high density and weight. When buying, you can weigh the weight of the pillow and choose the heavier one among the same specifications.
The most significant advantage of memory foam is that it has slow rebound performance. The rebound time of a good memory pillow is relatively slow, and the rebound time is about 3-5 seconds. Therefore, when choosing a memory pillow, it is best to press it with your hands. Test its resilience.
Memory foam maintenance methods
Not exposed to the sun
Memory foam is a polymer synthetic material, so remember not to expose it to the sun! Exposure to the sun will accelerate the oxidation and aging of the memory foam, and in severe cases may cause the pillow to crack and flake until it cannot be used.