Plasma treatment on the dyeing properties of polypropylene

2010-02-16  来源:本站原创  分类:Industry  人气:175 

Keyword:

Plasma treatment on polypropylene fabric dyeing properties of polypropylene low density, high strength, acid and alkali resistance is better, and do not irritate the skin, with good insulation, so in sports apparel, textile and other industrial applications has been widely However, the regularity of polypropylene macromolecules good, high molecular crystal, dyeing difference. By (N2 + He + H2) gas mixture treatment, the introduction of the nitrogen in the polypropylene surface polar groups, provided the activity of acid dyes stained seat, forming a dye and chemical bonding fibers. Plasma treatment of polypropylene fabric on the dyeing properties of anionic acid dyes has improved significantly. As the plasma treatment time, the dyeing will be a great value. As the plasma treatment occurs mainly in the fiber surface, dye is still not easy to crystallinity of the polypropylene fiber internal diffusion, and therefore to further improve the dyeing properties of polypropylene fabric, you can also by plasma polymerization, the introduction of polypropylene with the dye-house combination group, increased between dye and fiber bonding [11]. Such as acrylonitrile plasma by surface graft polymerization of polypropylene fabric, acrylonitrile dehydrogenation phenomena occur,-C ≡ N group disappeared, = C = N-and = C = C = also occurred in the phenomenon of intramolecular rearrangements, and this phenomenon with the plasma treatment time, discharge power increases, the grafting rate increased. At the same time, plasma polymerization, the polypropylene surface of a strong oxidation of the fiber surface = C = O and other oxygenated groups increase, thereby enhancing the fabric's moisture and improve the performance of fabric dyeing.
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