middle east jewelry wholesale What are the sponge products in life

middle east jewelry wholesale

1 thought on “middle east jewelry wholesale What are the sponge products in life”

  1. inexpensive wholesale wine related jewelry Sponge products in life have brushes, sofa mats, seat backs, plush toy fillers, and so on.
    The polyurethane soft foam rubber. Polyurethane is the most common type of polymer material in life. It is widely used in various sponge products. As well as elastic materials for shock absorption and anti -friction, such as sole, tractor tank tracked substrate.
    make resin, foaming assistant and adhesive resin (make the finished product have adhesive) together; B. Foam processing. Mix 80 ethylene ethyl acetate (EVA), 20 APAO PT 3385, 20 parts of nitrogen dihydide, L9 CACO, and 0.6 parts of peroxide, placed in molds, and use machinery, and use machinery If you strike the closure, you can make a sponge product.
    The relevant information
    The main method of physical foam, chemical foam hair and physical chemistry combined with the foam method. However, at present, the production process of domestic PVA sponge water absorption materials mostly uses backward starch to fill foaming.
    Mly fills the starch into the PVA solution at a proper temperature, and then the starch is clenched at a certain temperature and then washed off the starch. The environmental pollution is serious during production. The subsequent processing sequence is long. The starch cannot be completely cleaned, and the starch and acid catalyst cannot be completely recycled, which is not conducive to saving resources and cutting costs.
    The above reference: Baidu Encyclopedia-Sponge Products

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