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Antistatic type composite flame retardant fiber and preparation method thereof

A flame retardant fiber, antistatic technology, applied in the direction of conductive/antistatic filament manufacturing, fiber processing, filament/thread forming, etc. Reduced performance, good mechanical properties, effect of reduced usage

Active Publication Date: 2012-08-29
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the antistatic flame retardant fiber prepared by blending method disclosed in the prior art, due to the addition of functional components, the mechanical energy of the fiber is reduced, that is, the spinnability is reduced

Method used

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  • Antistatic type composite flame retardant fiber and preparation method thereof
  • Antistatic type composite flame retardant fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Dissolve titanate in toluene solvent, the mass ratio of titanate to toluene is 1:2, add the dissolved solution into nano-scale conductive carbon black in the form of mist, the conductive carbon black powder and titanate The mass ratio is 98:2, the temperature is raised to about 100°C under high-speed stirring (about 1000r / min), stirred for about 0.5h, and the halogen-free flame-retardant polyamide 6 resin with a relative viscosity of 2.4 (which contains 2% monoglyceride stearate) and the treated nano-conductive carbon black powder are dried, then added to the twin-screw extruder to mix, extrude, and pelletize to obtain antistatic and flame-resistant chips, nano-conductive The mass content of carbon black powder is 15%;

[0039] Dry the prepared antistatic flame retardant slices and polyamide 6 slices with a relative viscosity of 2.4, and spin them on a two-component composite spinning machine. The weight ratio of (core layer) is 20:80, the composite form is a concentri...

Embodiment 2

[0041]Add acetic acid to 95% ethanol solution to adjust the pH value to about 4, add silane to the above solvent, the mass concentration of silane is 2%, fully stir and hydrolyze for 5-10 minutes, then add nano-ATO conductive powder, nano-ATO conducts electricity The mass ratio of powder and silane is 98:2, continue to stir for 10-30 minutes, then filter, wash and dry, heat at 110°C-130°C for 15min, and finally use a high-speed pulverizer to grind the processed nano-ATO conductive powder The relative viscosity is 2.4 halogen-free flame-retardant polyamide 6 resin (which contains 2% monoglyceride stearate) and the treated nano-ATO conductive powder are dried, and then added to the Twin-screw extruder for mixing, extruding, and pelletizing, the mass content of nano-ATO conductive powder is 50%, and antistatic and flame retardant chips are obtained;

[0042] Dry the prepared antistatic flame retardant slices and polyamide 6 slices with a relative viscosity of 2.4, and spin them o...

Embodiment 3

[0044] Dissolve aluminate in methyl acetate solvent, the mass ratio of aluminate to methyl acetate is 1:50, add the dissolved solution into nano-scale ITO conductive powder in the form of mist, conductive powder and aluminum The mass ratio of the acid ester is 98:1, and the temperature is raised to about 100°C under high-speed stirring (about 1000r / min), stirred for about 0.5h, and the halogen-free flame-retardant polyamide 6 resin with a relative viscosity of 3.0 (which contains 10% monoglyceride stearate) and the treated nano-scale ITO conductive powder are dried, then mixed, extruded, and pelletized into a twin-screw extruder to obtain antistatic flame retardant chips , the mass content of nanoscale ITO conductive powder is 40%;

[0045] Dry the prepared antistatic flame retardant slices and polyamide 66 slices with a relative viscosity of 2.4, and spin them on a two-component composite spinning machine. The weight ratio of (core layer) is 15:85, the composite form is a co...

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Abstract

The invention provides antistatic flame retardant fiber and preparation method thereof. The cross section of the fiber is a sheath-core structure; a sheath layer contains conductive powder and halogen-free flame-retardant polyamide 6; a core layer is polyester, the polyamide 6 or a polyamide 66, wherein the weight ratio of the sheath layer to the core layer is (15:85) to (25:75), and the conductive powder accounts for 5-7% of the total mass of the sheath layer. Since conductive power is added in the halogen-free flame-retardant polyamide 6, so that the fiber is endowed with the antistatic function and the flame-retardant function, particularly the electrostatic absorption of dust, caused by fiber, can be reduced because of anti-static function, and then the cleanness and favorable cleanable performance of a fiber product can be kept; and meanwhile the fiber with the sheath-core structure can still keep favorable mechanical properties and spinning property. While keeping better antistatic and flame-retardant properties and mechanical properties, the fiber reduces the production cost and improves the processing properties, thereby being more user-friendly for downstream users.

Description

technical field [0001] The invention relates to a multifunctional fiber, in particular to an antistatic flame retardant fiber and a preparation method thereof. Background technique [0002] Polyester is a widely used fiber with good mechanical properties and wear resistance, but its own surface resistance is small, it is easy to generate static electricity, and it has no flame retardancy, which limits its application. Due to the existence of static electricity, it is easier to absorb dust, which seriously affects the production of high-precision instruments, biopharmaceuticals, food and other industries. At the same time, the existence of static electricity increases the possibility of fire or explosion in flammable and explosive places. Therefore, higher requirements are put forward for polyester products, so that in addition to good mechanical properties, they also have antistatic, flame retardant and other properties, which broaden their application range. [0003] The f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/14D01F8/12D01F1/09D01D5/34
Inventor 史贤宁吴鹏飞崔宁崔华帅李杰黄庆
Owner CHINESE TEXTILE ACAD
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