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[Polypropylene high strength silk properties]
Release date:[2023/5/12] Read a total of[340]time

Polypropylene high strength silk properties: can be used for polypropylene (modified) dyeing dyes. As the molecular structure of polypropylene is composed of neatly arranged crystals, there are few polar bases and no -- OH, -- NH2, -- CONH2, -- COOH and other groups that can combine with dye molecules. Hydrophobic, water absorption rate is only 0.1%. So dyeing is difficult. In polypropylene resin, metal salts such as nickel stearate or organometallic complexes such as nickel bisphenol are added, or polyethylpyridine, polyether ester and other polymers are added.

Woven into polypropylene modified fiber, it is easier to dye. The metal-modified polypropylene (PP) dyes not only have the properties of non-water-soluble disperse dyes, but also can chelate with metals. During dyeing, the dye molecules diffuse into the fibers and chelate with the metal atoms in the fibers to stick to the fibers. Polymer-modified polypropylene dyes having the ability to easily color these polymers. Polypropylene dyes include azo, triaromatic methane, anthraquinone and heterocyclic ring.

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