Sponge, is a porous material, with good water absorption, can be used to clean items. Commonly used sponges are made of wood cellulosic fibers or foamed plastic polymers. In addition, there are natural sponges made from sponge animals, and most natural sponges are used for body cleansing or painting. In addition, there are three types of other materials made of synthetic sponge, respectively, low-density polyether (non-absorbent sponge), polyvinyl alcohol (high absorbent material, no obvious pores) and polyester.

The following brief description of the sponge production process

        First, the foam resin, foam auxiliaries and binder resin (so that the finished product with adhesive) mixed together;

        Second, the foam processing. 80 parts of ethylene vinyl acetate (EVA), 20 parts of APAO PT 3385, 20 parts of azodicarbonamide, 9 parts of CaCO and 0.6 part of dicumyl peroxide were mixed together and placed in a mold, And mechanical resistance to break the hole, you can get foam sponge. The density (d) is 0.028 g / cm, and the compression hardness of 25% is 1.9 KPa.

Just like the same material as the foam of the different manufacturing process will create a different thing

        PU sponge mainly includes polyester and polyether can be sliced ​​or rolled, can also be based on customer requirements processing, hot press processing and blasting openings and so on. PU sponge because of its insulation, insulation, sound absorption, shock absorption, fire-retardant, anti-static, good ventilation and other characteristics, it involves a variety of industries, including the automotive industry, the battery industry, cosmetics, bust underwear manufacturing and high-grade furniture Manufacturing and so on.