When it comes to supercritical foaming, many people may find it difficult to understand what kind of process it is, and they may need to understand what the supercritical state is. In fact, from another perspective, it is also called physical foaming. Although the process flow of chemical foaming is not completely the same, there are some similarities between the two. The essential difference between the two lies in the different foaming agents.

1、 The essential difference between the two

2、 Advantages, disadvantages, and process comparison of the two

• Supercritical foaming is used to prepare pure foam materials with food safety grade and good compatibility with the skin.

  Compared with chemical foaming, supercritical foaming has a finer cell structure and more stable performance.

  Supercritical foamed foam has greater impact strength, better thermal stability, toughness, good sound insulation performance, and lower thermal conductivity and thermal conductivity.

  Long saturation time can affect production efficiency, and rapid heating or rapid pressure relief require high energy and equipment safety requirements.

• The maximum gas generation, relatively uniform pores, superior performance, and wide range of applications.

  The decomposition temperature can be adjusted without affecting the curing and molding speed, and the process is very mature.

  AC foaming agent is a yellow crystal, and decomposition can easily produce a large number of by-products, such as particle size not being fine enough, which can lead to the production of many by-products, resulting in a taste and color deviation in the product.

3、 The development trend of foaming technology