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

A polyester fiber, anti-droplet technology, applied in the chemical characteristics of fibers, single-component polyester rayon, rayon manufacturing and other directions, can solve the problems of disappearance, lack of flame retardant and anti-droplet properties, etc. The effect of low cost, good spinnability and simple production process

Inactive Publication Date: 2010-10-06
JIANGYIN BOLUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented describes making fireproof plastic with special materials that resist burning or sputtering on surfaces when exposed to high temperatures such as fires without causing damage. These materials also prevent water from getting inside them while still allowing for easy cleanup after use.

Problems solved by technology

Technologies described include improving fireproof qualities and reducing costs while maintaining quality standards for various materials. Additionally, there exist techniques called blend technology involving adding specific chemical components between certain parts of the mixture. These technical improvements help prevent degradations caused by factors like water vapor and temperature changes over prolonged periods without losing their original functions.

Method used

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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 nano-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 ℃ for 4 hours, and then disperse by shaking 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 eth...

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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 kettle and 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

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Claims

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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Application Information

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Owner JIANGYIN BOLUN CHEM FIBER
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