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A kind of organosilicon nitrogen flame-retardant regenerated cellulose fiber

A technology of regenerated cellulose and silicone, applied in the direction of artificial filament in cellulose solution, chemical post-treatment of cellulose/protein rayon, fire-retardant and flame-retardant filament manufacturing, etc., to eliminate fatigue, promote blood circulation and Metabolism, the effect of maintaining comfort

Active Publication Date: 2019-04-02
SOL FLAME RETARDANT FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, with the market's increasing demand for flame-retardant regenerated cellulose fiber products, the existing silicon-nitrogen-based flame-retardant regenerated cellulose fiber needs to be further improved in terms of flame retardancy and other properties, so it is necessary to provide a more excellent performance Silicon Nitride Flame Retardant Regenerated Cellulose Fiber

Method used

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  • A kind of organosilicon nitrogen flame-retardant regenerated cellulose fiber
  • A kind of organosilicon nitrogen flame-retardant regenerated cellulose fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Inject the organic silicon nitrogen flame retardant of 30wt% to the amount of cellulose into the prepared viscose collagen solution, make the viscose and the flame retardant react for 30 minutes, mix the viscosity of the glue for 70 seconds, and mature (10% ammonium chloride) 10ml. Regenerated in the coagulation bath by spinneret spinning, the coagulation bath composition is sulfuric acid 75g / l, sodium sulfate 160g / l, zinc sulfate 20g / l, temperature 40 ℃. The regenerated fiber tow is drawn, cut, washed, fixed cross-linked, bleached, oiled, dried, packed, and the condition of the fixed cross-linked bath is: fixed cross-linking agent: pure water: sodium bisulfite (weight Ratio)=33:66:1, the treatment time is 15-40 minutes, and the treatment temperature is 75°C.

[0029] SiO in flame retardant 2 、TiO 2 The total content of CaO and CaO is 18.7wt%, and the amide content is 12.5wt%; wherein the ratio (molar ratio) of silicon, titanium and calcium is 5.4:2.7:7.0

Embodiment 2

[0031] Inject the organic silicon nitrogen flame retardant of 33wt% to the amount of cellulose into the prepared viscose collagen solution, make the viscose and the flame retardant react for 50 minutes, mix the viscosity of the glue for 80 seconds, and mature (10% ammonium chloride) 14ml. Regenerated in the coagulation bath by spinneret spinning, the coagulation bath composition is sulfuric acid 100g / l, sodium sulfate 180g / l, zinc sulfate 30g / l, temperature 40°C. The regenerated fiber tow is drawn, cut, washed, fixed cross-linked, bleached, oiled, dried, packed, and the condition of the fixed cross-linked bath is: fixed cross-linking agent: pure water: sodium bisulfite (weight Ratio)=33:66:1, the treatment time is 15-40 minutes, and the treatment temperature is 75°C.

[0032] SiO in flame retardant 2 、TiO 2 The total content of CaO and CaO is 23wt%, and the amide content is 18.7wt%. The ratio (molar ratio) of silicon, titanium and calcium is 6.7:3.5:9.2.

Embodiment 3

[0034]Inject the organic silicon nitrogen flame retardant of 35wt% to the amount of cellulose into the prepared viscose collagen solution, make the viscose and the flame retardant react for 60 minutes, mix the viscosity of the glue for 70 seconds, and mature (10% ammonium chloride) 16ml. Regenerated in the coagulation bath by spinneret spinning, the coagulation bath composition is sulfuric acid 125g / l, sodium sulfate 280g / l, zinc sulfate 50g / l, temperature 45 ℃. The regenerated fiber tow is drawn, cut, washed, fixed cross-linked, bleached, oiled, dried, packed, and the condition of the fixed cross-linked bath is: fixed cross-linking agent: pure water: sodium bisulfite (weight Ratio)=33:66:1, the treatment time is 15-40 minutes, and the treatment temperature is 75°C.

[0035] SiO in flame retardant 2 、TiO 2 The total content of CaO and CaO is 33wt%, and the amide content is 28wt%. The ratio (molar ratio) of silicon, titanium and calcium is 7.2:3.8:12.3.

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Abstract

Disclosed is an organic silicon-nitrogen flame-retardant regenerated cellulose fiber, including silicon 5-15wt%, nitrogen 0.1-5wt%, oxygen 30-60wt%, carbon 20-40wt%, hydrogen 1-7wt%, titanium 1-7wt% and calcium 1-7wt%. The organic silicon-nitrogen flame-retardant regenerated cellulose fiber according to the present invention exhibits a higher limiting oxygen index, a better flame-retarding performance and a far infrared function, and the normal emission rate testing data reach the normal emission rate standard requirements of the textile article.

Description

technical field [0001] The invention relates to an organic silicon nitrogen flame-retardant regenerated cellulose fiber, which belongs to the field of textile products. Background technique [0002] At present, more than 60% of fires in the world are caused by textiles, and more than 80% of fire deaths are caused by inhalation of poisonous fumes or suffocation. With the development of human civilization and the formulation of fire safety regulations in various countries, higher and higher requirements are put forward for flame retardant materials. From the initial consideration of the flame retardant properties of materials, to the requirements for environmental protection, health care, appearance, comfort and other aspects of flame retardant materials. Although flame retardant synthetic fibers (flame retardant polyester, flame retardant acrylic, etc.) and intrinsically flame retardant fibers (aramid, polyimide, etc.) have good flame retardancy, due to the poor comfort of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/08D01F11/02
CPCD01F2/02D01D1/02D01F1/07D01F2/06
Inventor 冉国庆胡金龙毕慎平
Owner SOL FLAME RETARDANT FIBER
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