EVA high-density closed cell foam is a kind of polymer material. Due to its unique properties and wide applications, it has attracted much attention in many industries. This article will introduce the preparation technology, performance characteristics and application fields of EVA high-density closed cell foam in detail.
1、 Preparation technology
The key to the preparation of EVA high-density closed cell foam is to control the formation and growth of cell. During the preparation process, it is necessary to select appropriate foaming agents and formulas, as well as precisely control process parameters such as temperature and pressure.
First of all, the key to prepare EVA high-density closed cell foam is to select appropriate foaming agent. Common foaming agents include chemical foaming agents and physical foaming agents. Chemical foaming agents can decompose and produce gas during heating, while physical foaming agents mix gas into polymers through physical means. In the preparation of EVA high-density closed cell foam, physical foaming agents, such as nitrogen or carbon dioxide, are usually used.
Secondly, the selection of appropriate formula is also an important link in the preparation of EVA high-density closed cell foam. EVA resin is a polymer whose properties can be changed by adjusting the composition in the formula. In order to obtain high-density EVA foam, it is necessary to add an appropriate amount of filler and crosslinking agent. Fillers can increase the density and hardness of foam, while crosslinking agents can improve the durability and stability of foam.
Finally, precise control of process parameters such as temperature and pressure is also the key to prepare EVA high-density closed cell foam. Under heating and pressure conditions, EVA resin will soften and foam. By precisely controlling the temperature and pressure, the size and distribution of the bubbles can be controlled, thus obtaining the ideal EVA high-density closed cell foam.
2、 Performance characteristics
EVA high-density closed cell foam has many excellent performance characteristics, making it widely used in many fields. First, EVA high-density closed cell foam has high density and hardness, which can provide good support and durability. Secondly, due to its closed cell structure, EVA high-density closed cell foam has good thermal insulation and sound insulation performance. In addition, EVA high-density closed cell foam also has good wear resistance and chemical corrosion resistance, and can be used in various environments. Finally, EVA high-density closed cell foam is easy to process and cut, and can be customized according to needs.
3、 Application field
Due to its excellent performance characteristics, EVA high-density closed cell foam has been widely used in many fields. First, in the construction field, EVA high-density closed cell foam is widely used in thermal insulation, sound insulation and heat insulation. Secondly, in the field of automobile manufacturing, EVA high-density closed cell foam is used to manufacture automobile parts, such as automobile seats, door panels and instrument panels. In addition, in the field of sports equipment manufacturing, EVA high-density closed cell foam is also widely used to manufacture sports shoes, sports equipment and protective equipment.
In a word, as an excellent polymer material, EVA high-density closed cell foam is of great significance in preparation technology, performance characteristics and application fields. By continuously improving the preparation technology and formula, its advantages can be further leveraged and its application areas can be expanded.