Memory insoles are also called slow rebound insoles; also known as memory foam (Memory Foam), is a polyurethane polymer with an open cell structure (Open-cell), the material has a special viscoelastic Features, reflecting very soft material properties, and has a strong impact energy absorption capacity. The molecules of this material are very sensitive to temperature, so it is also called temperature-sensitive memory cotton. The lucky rose insole made of memory foam is called memory insole.
The birth of memory foam can be traced back to a study by NASA in 1962: the design of the Apollo command module life-saving system. Taking off, the spacecraft returning to the atmosphere, the huge impact on the astronauts caused by some accidents (such as falling), and improving the protection and comfort of the seat for the astronauts. Because memory foam was originally born in the United States Space Agency, it is often referred to as space memory foam, which means technology from the United States Space Agency.
When used as an impact buffer material, it has a strong impact energy absorption capacity, and at the same time it has a small rebound force on the pressure object (or human body) that is in contact with it. The rebound force of the buffer material is caused by high impact conditions. The direct cause of the injury of the protected object or human body. When used as a mat product material, the pressure received is similar to static pressure, and under such pressure, the molecular structure of the memory foam material will “flow” and shift, deform to fit the contour of the pressure surface, and spread the support points to The entire contact surface allows the pressure to be distributed over the entire contact surface. This feature is called the “uniform pressure distribution characteristic” of memory foam. When people sit and lie on the mat made of memory foam, because the pressure is dispersed, there is no pressure concentration point in the body, and the comfort is greatly improved. Problems such as bedsores caused by blood circulation blockage caused by long-term high pressure oppression are also Therefore, a good preventive effect is achieved. After special modulation and improvement, this material also has a softer touch than ordinary sponges; at the same time, the Open-cell molecular structure of the material is similar to the cell structure of the human body, and has better compatibility with the human body. Let the memory foam material be widely used in the field of medical rescue. At the beginning of the 21st century, memory foam began to be used in the shoe material industry, and gradually became a unique way of using high-end shoe materials. In the application of insoles, memory foam is very extensive; it is obviously superior to other materials in terms of shock absorption, and has very good comfort.
Memory foam should be used mainly for the elderly, those with sweaty feet, and those with lower limb edema who are not easy to wear shoes.
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