Coloured flame-retardant polypropylene fibre, preparation and use thereof

Abstract

The invention provides a colored flame retardant polypropylene fiber as well as a preparation method and application thereof. The fiber comprises the following components by weight: 1-10 parts of a color master batch, 1-20 parts of a flame retardant master batch and 98-70 parts of polypropylene fiber forming slices; the flame retardant master batch is a blend of a phosphorous flame retardant, modified magnesium hydroxide, modified nano aluminum hydroxide and the polypropylene fiber forming slices, and the parts of the phosphorous flame retardant, the magnesium hydroxide and the aluminum hydroxide by weight equal 10:3-5:0-1.5. The flame retardant has the advantages of excellent performance, improved pigment dispersivity and polypropylene fluidity, improved spinning performance, high decomposition temperature, good thermal stability, less smoke amount, no toxicity, no corrosiveness and no suffocation, and does not affect original performance of materials and production requirements basically; the performance indexes of obtained polypropylene filament yarn meet standard requirements; the fiber is soft and elastic, and has the advantages of good flame retardant performance and long flame retardant period.

Description

technical field [0001] The invention relates to a polypropylene fiber and its preparation method and application, in particular to a colored flame-retardant polypropylene fiber. Background technique [0002] In the past ten years, my country's polypropylene industry has developed rapidly. In 1995, the output was 1.073 million tons. In 2000, it exceeded 3 million tons. In 2004, the output soared to 4.749 million tons. To meet the rapidly growing demand of the domestic market, a large number of imports are made every year. In 2004, my country imported about 3 million tons of polypropylene, the highest record in history, and there is still a growing trend. Polypropylene is a variety of polypropylene with great development potential. In addition to being used as clothing fibers, industrial polypropylene is a hot spot for development in recent years. With the emphasis on engineering quality, the application of modified polypropylene fibers and geotextiles in roads, reservoirs, an...

AI Technical Summary

Problems solved by technology

If some pigments are too fine, such as when the proportion of particles below 0.2 μm is large, it will appear. First, it will be re-flocculated into large particles, which is difficult to maintain the micronized state; second, due to the diffraction of visible light, the light will bypass Pigment particles pass through, increasing the transparency of the coloring and making it difficult to stabilize the color, for example: red may become yellowish, blue may become greenish, etc.

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