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Method for preparing flame-retardant and anti-dripping polyester fiber

A polyester fiber and anti-droplet technology, applied in the direction of one-component polyester rayon, can solve the problems of disappearance, lack of flame retardant and anti-droplet properties, etc., to achieve low cost, good spinnability, Simple production process

Inactive Publication Date: 2011-09-21
JIANGYIN BOLUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it achieves flame retardancy and anti-dripping through post-finishing. After repeated use, the function will gradually disappear, and it does not have permanent flame-retardant and anti-dripping properties.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Step 1, modification of nano-montmorillonite

[0033] Add the nano-montmorillonite powder into ethylene glycol to form a 10% nano-montmorillonite ethylene glycol solution, add 0.02% ethylene glycol mass silane coupling agent, and stir at a temperature of 70 ℃ for 2 hours, and then disperse by shaking with an ultrasonic generator for 10 minutes to prepare a modified solution of nano-montmorillonite.

[0034] Step 2. Preparation of flame retardant and anti-droplet polyester chips

[0035] Add terephthalic acid (PTA), 2-carboxyethyl hypophosphorous acid (CEPPA) and ethylene glycol (EG) in a molar ratio of 1:0.01:1.15 into the esterification tank, and stir the esterification tank to raise the temperature to 230 ℃, control the pressure in the esterification tank at 200kPa, react for 1 hour, make the esterification rate reach more than 90%, end the esterification, relieve the pressure, then add the modified solution of catalyst ethylene glycol antimony and nano-montmorilloni...

Embodiment 2

[0039] Step 1, modification of nano-montmorillonite

[0040] Add nano-montmorillonite powder into ethylene glycol to form a 20% nano-montmorillonite ethylene glycol solution with a mass fraction of ethylene glycol, add 0.1% silane coupling agent to the mass of ethylene glycol, and stir at a temperature of 80 ℃ for 3 hours, and then disperse by shaking with an ultrasonic generator for 20 minutes to prepare a modified solution of nano-montmorillonite.

[0041] Step 2. Preparation of flame retardant and anti-droplet polyester chips

[0042]Add terephthalic acid (PTA), 2-carboxyethyl hypophosphorous acid (CEPPA) and ethylene glycol (EG) in a molar ratio of 1:0.03:1.18 into the esterification tank, and stir the esterification tank to raise the temperature to 240 ℃, control the pressure in the esterification kettle at 300kPa, react for 1.5 hours, make the esterification rate reach more than 93%, end the esterification, relieve the pressure, then add the modified solution of catalys...

Embodiment 3

[0046] Step 1, modification of nanometer montmorillonite

[0047] Add the nano-montmorillonite powder into ethylene glycol to form a 30% nano-montmorillonite glycol solution with a mass fraction of ethylene glycol, add 0.2% silane coupling agent to the mass of ethylene glycol, and stir at a temperature of 100 ℃ stirring for 4 hours, and then disperse with an ultrasonic generator for 30 minutes to prepare a modified solution of nano-montmorillonite.

[0048] Step 2. Preparation of flame-retardant and anti-droplet polyester chips

[0049] Add terephthalic acid (PTA), 2-carboxyethyl hypophosphorous acid (CEPPA) and ethylene glycol (EG) in a molar ratio of 1:0.06:1.25 into the esterification tank, and stir the esterification tank to raise the temperature to 250 ℃, control the pressure in the esterification kettle at 400kPa, react for 2 hours, make the esterification rate reach more than 99%, end the esterification, relieve the pressure, then add the modified solution of catalyst ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention relates to a method for preparing a flame-retardant and anti-dripping polyester fiber, which is characterized by comprising the following technical steps of: (1) adding nano-montmorillonite powder and a silane coupling agent into ethylene glycol to prepare modified solution of nano-montmorillonite; (2) adding terephthalic acid, 2-carboxyethyl phosphinic acid and the ethylene glycol into an esterifying kettle for esterifying, adding ethylene glycol antimony serving as a catalyst and the modified solution of nano-montmorillonite prepared by the step (1) into the esterifying kettleand introducing the mixture into a polycondensation kettle to perform a polycondensation reaction; and (3) slicing flame-retardant polyester prepared by the step (2), drying the slices and spinning the dried slices on a spinning machine according to a conventional polyester spinning process to obtain the flame-retardant polyester fiber. The flame-retardant and anti-dripping polyester fiber prepared by the method of the invention has the characteristics of low production cost, permanent flame retardance and anti-dripping property.

Description

(1) Technical field [0001] The invention relates to a preparation method of flame-retardant polyester fiber. The polyester fiber can be used in various industries such as aviation, railway and other transportation systems, foreign-related hotels, restaurants, public entertainment places and fire protection. (2) Background technology [0002] Polyester fiber has many excellent properties, such as high breaking strength and elastic modulus, moderate resilience, excellent heat setting, good heat resistance and light resistance, and the fabric is easy to wash and dry, so it has a wide range of clothing and industrial uses . The flame retardancy of this widely used and large amount of material has always been a hot spot in flame retardancy research, but the anti-droplet performance of flame-retardant polyester fibers is not ideal. The methods of flame retardant polyester fiber modification can be divided into the following three categories: [0003] (1) Blending (addition) typ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/692
Inventor 顾晓华薛纪良承耀明卞忠华方小兵卞敏凯赵飞卞仲高
Owner JIANGYIN BOLUN CHEM FIBER
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