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A kind of method for preparing anti-melting polyester fiber

A polyester fiber, anti-melt drop technology, applied in the direction of fiber chemical characteristics, single-component polyester rayon, rayon manufacturing, etc., to achieve the effect of facilitating industrial production and simple process

Active Publication Date: 2016-10-05
ZHEJIANG JINCAI NEW MATERIAL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the coarse particle size of PTFE powder, it cannot be used for fiber spinning by melt blending, because fiber spinning requires the particle size of PTFE powder to be below 1 μm, and in the matrix Has good dispersibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) irradiating 200kGy of polytetrafluoroethylene powder with a particle size of 5 μm on an electron beam accelerator;

[0021] 2) Dry the first PET chip at a temperature of 120°C until the moisture content reaches 300ppm, add irradiated polytetrafluoroethylene powder to it, and mix and extrude it in a twin-screw extruder at a temperature of about 280°C, Thereby, an anti-dripping polyester masterbatch is obtained, and the anti-dripping polyester masterbatch contains 10% polytetrafluoroethylene ultrafine powder with a particle size between 1 μm and 120 nm by weight;

[0022] 3) Pre-crystallize the second PET chips at a temperature of 120°C and dry at a temperature of 140°C until the moisture content reaches 300ppm; dry the above-mentioned anti-droplet polyester masterbatch at a temperature of 140°C to a moisture content of Reach 300ppm; Add the dried anti-melt drop polyester masterbatch to the second PET chips with a volume metering injection machine, and use conventional...

Embodiment 2

[0024] 1) irradiating PTFE powder with a particle size of 10 μm to 1000 kGy on an electron beam accelerator;

[0025] 2) Dry the first PBT chip at a temperature of 120°C until the moisture content reaches 300ppm, add irradiated polytetrafluoroethylene powder thereto, and mix and extrude it in a twin-screw extruder at a temperature of 260°C, thereby An anti-dripping polyester masterbatch is obtained, the anti-dripping polyester masterbatch contains 20% polytetrafluoroethylene ultrafine powder with a particle size between 1 μm and 120 nm by weight;

[0026] 3) Dry the second PBT chips at a temperature of 140°C until the moisture content reaches 300ppm; dry the above-mentioned anti-droplet polyester masterbatch at a temperature of 140°C until the moisture content reaches 300ppm; use a volumetric metering injection machine Add the dried anti-melt drop polyester masterbatch to the second PBT chips, and use conventional polyester spinning equipment and technology to spin 150d / 24f fu...

Embodiment 3

[0028] 1) irradiating 1500kGy of polytetrafluoroethylene powder with a particle size of 12 μm on an electron beam accelerator;

[0029] 2) Dry the first PTT chip at a temperature of 120°C until the moisture content reaches 300ppm, add irradiated polytetrafluoroethylene powder to it, and mix and extrude it in a twin-screw extruder at a temperature of about 260°C, Thereby, the anti-melt drop polyester master batch is obtained, and the anti-melt drop polyester master batch contains 3% polytetrafluoroethylene ultrafine powder with a particle size between 1 μm and 120 nm by weight;

[0030] 3) Dry the second PTT chips at a temperature of 140°C until the moisture content reaches 300ppm; dry the above-mentioned anti-droplet polyester masterbatch at a temperature of 140°C until the moisture content reaches 300ppm; use a volumetric metering injection machine The dried anti-melt drop polyester masterbatch is added to the second PTT chip, and conventional polyester spinning equipment and...

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PUM

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Abstract

The invention provides a method for preparing an anti-melt-dripping polyester fiber. The method comprises the following steps: carrying out irradiation on polytetrafluoroethylene powder with the particle size of being 1-20 microns, carrying out blending, extrusion, cooling and granulation on the irradiated polytetrafluoroethylene powder and dried polyester by adopting an extruding machine so as to prepare anti-melt-dripping polyester master batches; and further mixing the anti-melt-dripping polyester master batches and polyester for carrying out spinning so as to prepare the anti-melt-dripping polyester fiber, wherein the anti-melt-dripping polyester master batches consist of the following components in weight percent: 80%-97% of polyester and 3%-20% of ultrafine polytetrafluoroethylene powder with the particle size of being 1 micron to 120 nanometers; the anti-melt-dripping polyester fiber comprises 0.05%-5% of ultrafine polytetrafluoroethylene powder with the particle size of being 1micron to 120 nanometers according to the weight percentage. The anti-melt-dripping polyester fiber prepared by the method can not generate the phenomenon of melt dripping in burning and can be applied to manufacture of garment fabrics, decorative fabrics and textiles for industries.

Description

technical field [0001] The invention belongs to the field of thermoplastic fiber modification, and in particular relates to a method for preparing anti-droplet polyester fiber. Background technique [0002] Polyester fiber has excellent comprehensive properties, such as high breaking strength and modulus, moderate resilience, excellent heat setting, good heat resistance, light resistance and corrosion resistance, and is widely used in clothing fabrics, decorative fabrics and industrial textiles. However, polyester fibers are flammable and prone to molten drips when burned; these high-temperature drips are likely to cause secondary combustion, and if they stick to the skin, they will cause skin damage. This greatly limits the application of polyester fibers in clothing fabrics, decorative fabrics and industrial textiles. Although polyester fibers can be flame-retardant processed, there is no good solution to the problem of melting droplets. Therefore, anti-melt Drops are a q...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10
Inventor 孙侠朱士凤施楣梧
Owner ZHEJIANG JINCAI NEW MATERIAL