Chemical fibre containing organic metal catalyst, production and use thereof
An organometallic and chemical fiber technology, applied in the direction of single-component cellulose rayon, rayon manufacturing, fiber chemical characteristics, etc.
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Embodiment 1
[0017] Use 6 grams of commercially available iron phthalocyanine to evenly disperse in 1000 grams of 15% polyvinyl alcohol aqueous solution by weight, then defoam, and extrude the slurry into a 50°C Glauber's salt coagulation bath on a small spinning machine through a spinneret hole It is coagulated into silk, then wet-heat stretched in Glauber's salt liquid at 90°C, then dry-heat stretched, acetalized, washed, oiled, and dried to obtain vinylon fiber containing iron phthalocyanine. The ammonia elimination rate of the fiber is 77%, and the hydrogen sulfide elimination rate is above 90%.
[0018] Detection method: Put 2 grams of fiber containing the catalyst in a 10-liter plexiglass sealed box with a latex injection window, fill it with odorless fresh air and seal it, inject ammonia or vulcanization through the latex window with a syringe Hydrogen gas so that its concentration is around 100 PPM. Analyze the concentration of ammonia or hydrogen sulfide by gas chromatography. A...
Embodiment 2
[0022] Disperse 2.5 grams of manganese porphyrin in 1000 grams of polyacrylonitrile by weight in 14% sodium thiocyanate aqueous solution (the sodium thiocyanate in sodium thiocyanate aqueous solution is 50% by weight), static defoaming , squeeze the solution into 10% sodium thiocyanate aqueous solution at 10°C through the spinneret hole to solidify into a precursor, then pre-stretch through the second coagulation bath, the coagulation bath is 3% sodium thiocyanate aqueous solution, and the bath temperature is 50°C. Then it is stretched by steam, the stretching temperature is 100°C, then washed with water, oiled and dried. The dried fibers are crimped at 85° C., heat-set at 130° C., oiled again, and dried at 120° C. to obtain acrylic fibers containing manganese porphyrin. The ammonia elimination rate of the cloth is 65%, and the hydrogen sulfide elimination rate is 84%.
Embodiment 3
[0024] Dissolve 1000 grams of 15.4% polyvinyl alcohol aqueous solution with 4.5 grams of tetracarboxyphthalocyanine cobalt sodium salt, and extrude the slurry into a 52° C. mirabilite coagulation bath on a small spinning machine to coagulate into silk. Then wet heat stretching in Glauber's salt solution at 88°C, dry heat stretching at 210°C, acetalization, water washing, oiling, and drying to obtain vinylon fibers containing cobalt phthalocyanine and covalently bonded fiber macromolecules. The ammonia elimination rate of the fiber is 73%, and the hydrogen sulfide elimination rate is over 90%.
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