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Preparation method for water-insoluble aluminum silicate antiflaming viscose

A flame-retardant viscose fiber, water-insoluble technology, applied in the field of preparation of non-water-soluble metal silicate flame-retardant viscose fiber, can solve the difficulty of acid bath recovery in production line, affect the physical properties of fiber, unstable product quality, etc. problems, to achieve the effect of changing the thermal cracking process, easy control, and good heat resistance

Active Publication Date: 2014-04-02
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned flame retardant mechanism determines that there is inevitably the outstanding problem of excessive addition of inorganic flame retardants in this flame retardant viscose fiber product, which in turn directly affects the physical properties of the fibers; moreover, the amount of inorganic flame retardants added Too much, on the one hand, causes a large amount of inorganic flame retardants to adhere to the surface of the cortex of the fiber, the flame retardant effect is greatly reduced after spinning or fabrics, and the product quality is unstable; on the other hand, a large amount of inorganic flame retardants are solidified Entering the coagulation bath during the forming process will bring about a series of problems such as difficulty in recycling the acid bath in the production line and rising production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The addition of aluminum silicate is 5% of the flame retardant viscose fiber;

[0035] The sulfuric acid content is 80g / L, sodium sulfate 230g / L, zinc sulfate 20g / L, and the balance is water; the coagulation acid bath temperature is 10°C-50°C, and the coagulation time is 3 seconds;

[0036] Add 2.2 grams of aluminum silicate into an appropriate amount of deionized water, and disperse it ultrasonically for 5 minutes to obtain an aluminum silicate dispersion with an aluminum silicate content of 20%, and add it to 500 grams of α-cellulose with a content of 8.35% ( mass), in a viscose solution with a sodium hydroxide content of 5.8% (mass), at 10°C-40°C, fully stirred for 1 hour, mixed to obtain a viscose-aluminum silicate dispersion, and then heated at 10°C-30°C , vacuum defoaming treatment was carried out for 20 minutes to remove the gas contained in the dispersion, and viscose / Al 2 (SiO 3 ) 3 Mixed spinning solution. Viscose / Al 2 (SiO 3 ) 3 The mixed spinning solu...

Embodiment 2

[0038] The addition of aluminum silicate is 40% of the flame retardant viscose fiber;

[0039] The sulfuric acid content is 130g / L, the sodium sulfate is 340g / L, and the balance is water; the coagulation acid bath temperature is 10°C-50°C, and the coagulation time is 10 seconds;

[0040] Add 27.83 grams of aluminum silicate to an appropriate amount of deionized water, and disperse ultrasonically for 20 minutes to obtain an aluminum silicate dispersion with a magnesium silicate content of 50%, and add it to 500 grams of α-cellulose with a content of 8.35% (by mass), In the viscose solution with a sodium hydroxide content of 5.8% (mass), at 10°C-40°C, fully stir for 1 hour, mix to obtain a viscose-aluminum silicate dispersion, and then at 10°C-30°C, carry out Vacuum defoaming treatment for 20 minutes to remove the gas contained in the dispersion to obtain viscose / Al 2 (SiO 3 ) 3 Mixed spinning solution. Viscose / Al 2 (SiO 3 ) 3 The mixed spinning solution is extruded into ...

Embodiment 3

[0042] The amount of aluminum silicate added is 31.6% of the flame retardant viscose fiber;

[0043] The sulfuric acid content is 80g / L, sodium sulfate 240g / L, zinc sulfate 15g / L, and the balance is water; the coagulation acid bath temperature is 10°C-50°C, and the coagulation time is 5 seconds;

[0044] Add 19.33 grams of aluminum silicate to an appropriate amount of deionized water, and disperse it ultrasonically for 20 minutes to obtain an aluminum silicate dispersion with an aluminum silicate content of 50%, and add it to 500 grams of α-cellulose with a content of 8.35% (by mass), In the viscose solution with a sodium hydroxide content of 5.8% (mass), at 10°C-40°C, fully stir for 1 hour, mix to obtain a viscose-aluminum silicate dispersion, and then at 10°C-30°C, carry out Vacuum defoaming treatment for 20 minutes to remove the gas contained in the dispersion to obtain viscose / Al 2 (SiO 3 ) 3 Mixed spinning solution. Viscose / Al 2 (SiO 3 ) 3 The mixed spinning soluti...

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Abstract

The invention discloses a preparation method for water-insoluble aluminum silicate antiflaming viscose. The preparation method comprises the following steps: adding micron-order aluminum silicate powder with the particle size of less than 5 microns into a proper amount of deionized water, and performing ultrasonic dispersion on the powder to obtain an aluminum silicate dispersion liquid; adding the prepared aluminum silicate dispersion liquid into a viscose solution which accounts for 5-40wt% of the antiflamming viscose, and fully stirring the materials; performing the subsequent working procedure treatment by the conventional technical measure to finally obtain an antiflaming viscose product. Metal aluminum ions in the antiflaming viscose achieve the main antiflamming effect. The preparation method for the non-water-soluble aluminum silicate antiflaming viscose, which is disclosed by the invention, is simple in technology, easy to operate and control and low in manufacturing cost; the antiflaming viscose prepared by the preparation method can achieve good heat resistant and flame retardant effects; toxic gas cannot be released in a using process; after the antiflaming viscose is abandoned, the environment cannot be polluted.

Description

technical field [0001] The invention relates to a preparation method of a water-insoluble metal silicate flame-retardant viscose fiber, in particular to a preparation method of a water-insoluble aluminum silicate flame-retardant viscose fiber. Background technique [0002] In recent years, the mass construction of high-rise residences and hotels and the rapid development of various means of transportation have greatly promoted the development of flame-retardant fiber technology. Its application fields have also developed from military, industry, and fire protection to home textiles, vehicles, and decorative materials in public places. With the rapid development of the interior decoration industry and the continuous improvement of grades, curtains, carpets, fabric decorations, etc. have already been popularized from high-end places such as hotels to more and more home decorations. In recent years, fires caused by textiles have been increasing in countries all over the world....

Claims

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Application Information

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IPC IPC(8): D01F2/08D01D1/10D01D5/06
Inventor 夏延致纪全李春霞马晓梅宋翠翠全凤玉
Owner QINGDAO UNIV
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