Flame-retardant silicate fiber, coagulation bath for producing flame-retardant silicate fiber and method for preparing flame-retardant silicate fiber

A silicate fiber and coagulation bath technology, applied in the manufacture of fire-resistant and flame-retardant filaments, fiber chemical characteristics, single-component cellulose artificial filaments, etc., can solve the problem of increasing the production cost of flame-retardant fibers and affecting the molding effect of viscose , flame-retardant fiber finished product defects and other problems, to achieve the effect of ensuring flame-retardant effect and physical and mechanical properties, good flame-retardant effect and physical and mechanical properties, and simple production methods

Active Publication Date: 2012-07-25
潍坊欣龙生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When a three-component coagulation bath is used to produce flame-retardant viscose fibers, a large amount of flame retardants will be lost in the coagulation bath during the spinning process, which will not only affect the flame-retardant effect of the finish

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Using cellulose pulp as raw material, cellulose xanthate viscose is prepared through the steps of dipping, pressing, crushing, aging and yellowing, adding sodium metasilicate flame retardant to the dissolved viscose solution , stir evenly to prepare the solution of the precursor of the flame retardant, add the solution of the precursor of the flame retardant to the cellulose xanthate viscose, and then filter, ripen and defoam to obtain a cellulose content of 5.0 wt%, effective content of flame retardant SiO 2 Relative to the first cellulose, it is 30wt%, the alkali content is 6.0wt%, the viscosity measured by the falling ball method is 30s, and 10% NH 4 Flame-retardant spun viscose with a maturity of 30ml measured by Cl.

[0028] Said flame retardant spun viscose in H 2 SO 4 90g / l, ZnSO 4 15g / l, Na 2 SO 4 280g / l and flame retardant effective content SiO 2 Coagulate and form in a 0.3g / l four-component coagulation bath, and then pass through inter-disk drafting and...

Embodiment 2

[0030] Using cellulose pulp as raw material, cellulose xanthate viscose is prepared through the steps of dipping, pressing, crushing, aging and yellowing, adding sodium metasilicate flame retardant to the dissolved viscose solution , stir evenly to obtain the solution of the precursor of the flame retardant, add the solution of the precursor of the flame retardant to the cellulose xanthate viscose, and then filter, ripen and defoam to obtain a cellulose content of 7.5 wt%, effective content of flame retardant SiO 2 Relative to the first cellulose is 40wt%, the alkali content is 7.0wt%, the viscosity measured by the falling ball method is 40s, and 10% NH 4 Flame-retardant spun viscose with a maturity of 20ml measured by Cl.

[0031] Said flame retardant spun viscose in H 2 SO 4 110g / l, ZnSO 425g / l, Na 2 SO 4 300g / l and flame retardant effective content SiO 2 Coagulate and form in a 0.8g / l four-component coagulation bath, and then pass through inter-disk drafting and plas...

Embodiment 3

[0033] Using cellulose pulp as raw material, cellulose xanthate viscose is prepared through the steps of dipping, pressing, crushing, aging and yellowing, adding sodium metasilicate flame retardant to the dissolved viscose solution , stir evenly to prepare the solution of the precursor of the flame retardant, add the solution of the precursor of the flame retardant to the cellulose xanthate viscose, and then filter, ripen and defoam to obtain a cellulose content of 9.8 wt%, effective content of flame retardant SiO 2 Relative to the first cellulose, it is 45wt%, the alkali content is 10.0wt%, the viscosity measured by the falling ball method is 48s, and 10% NH 4 Flame-retardant spun viscose with a maturity of 20ml measured by Cl.

[0034] Said flame retardant spun viscose in H 2 SO 4 140g / l, ZnSO 4 40g / l, Na 2 SO 4 320g / l and flame retardant effective content SiO 2 1.2g / l four-component coagulation bath coagulation molding, and then successively through inter-disc drafti...

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Abstract

The invention discloses flame-retardant silicate fiber, a coagulation bath for producing the flame-retardant silicate fiber and a method for preparing the flame-retardant silicate fiber. The coagulation bath for forming the silicate fiber contains H2SO4, ZnSO4, Na2SO4 and silicon series flame retardant. The method comprises the following steps of: (1) preparing cellulose xanthate viscose by using cellulose pulp as a raw material, adding a dissolved precursor solution of the flame retardant, filtering, ageing and defoaming to obtain flame-retardant spinning viscose; and (2) coagulating the flame-retardant spinning viscose in the four-component coagulation bath, drawing, refining, drying to obtain the flame-retardant viscose fiber. By adopting the four-component coagulation bath for preparing the flame-retardant fiber, the loss of the flame retardant in slivers can be reduced, the spinning property is improved, the physical and mechanical property indexes of the flame-retardant fiber are improved, and the production cost of the flame-retardant viscose fiber is reduced.

Description

technical field [0001] The invention relates to the technical field of viscose fiber, in particular to the preparation of flame-retardant viscose fiber. Background technique [0002] With the progress of society and the enhancement of people's safety awareness, the application of flame retardant fiber and its products has been paid more and more attention by people, especially the high-rise residences, hotels and various transportations that have been built one after another in China in the past ten years. Tools have higher and higher flame retardancy requirements for their interior decoration products, which has greatly accelerated the development of flame-retardant fiber technology. Its application fields have also developed from military, industrial, and fire protection to home textiles, vehicles, and public place decoration materials. At present, many countries in the world have put forward specific requirements or restrictions on the combustion performance of fibers an...

Claims

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Application Information

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IPC IPC(8): D01F2/10D01F1/07
Inventor 张志鸿马君志吴亚红姜明亮秦翠梅郝连庆李昌垒
Owner 潍坊欣龙生物材料有限公司
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