Anti-neutron radiation polyester fiber preparation method

A technology of neutron radiation prevention and polyester fiber, which is applied to the chemical characteristics of fibers, complete sets of equipment for the production of artificial threads, and artificial silk manufacturing. It can solve the problems of high cost and achieve low cost, simple production process, and good elasticity.

Inactive Publication Date: 2015-01-07
HAIAN HUARONG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although people have developed some anti-radiation supplies, their cost is too expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The present embodiment is a kind of anti-neutron radiation polyester fiber preparation method, and the anti-neutron radiation polyester slice is made of terephthalic acid with a mass fraction of 52%, 45% ethylene glycol and mixed with the ethylene glycol and accounts for Its total weight is 16% of boride or heavy metal compound, 2% of catalyst, 1% of stabilizer through esterification and polycondensation.

[0015] 1. Esterification: Put the mixture of terephthalic acid and ethylene glycol in the formula amount into the beating kettle for beating, then add the catalyst and stabilizer and mix evenly, then add it to the reaction kettle, heat up to 245°C, and react for 50min , after the reaction is completed, the esterified product is sent to the polycondensation pump;

[0016] 2. Polycondensation: control the polycondensation reaction temperature at 260°C, vacuumize, and keep the vacuum at 10KPa to obtain a copolymer melt, extrude the copolymer melt once on a screw extrude...

Embodiment 2

[0019] Present embodiment is a kind of anti-neutron radiation polyester fiber preparation method, described anti-neutron radiation polyester slice is made of terephthalic acid with a mass fraction of 65%, 30% ethylene glycol and mixed with said ethylene glycol and accounts for Its total weight is 20% of boride or heavy metal compound, 4% of catalyst, 1% of stabilizer through esterification and polycondensation.

[0020] 1. Esterification: Put the mixture of terephthalic acid and ethylene glycol in the formula amount into the beating kettle for beating, then add the catalyst and stabilizer and mix evenly, then add it to the reaction kettle, heat up to 255°C, and react for 40 minutes , after the reaction is completed, the esterified product is sent to the polycondensation pump;

[0021] 2. Polycondensation: control the polycondensation reaction temperature at 275°C, vacuumize, and keep the vacuum at 5KPa to obtain a copolymer melt, extrude the copolymer melt once on a screw extr...

Embodiment 3

[0024] The present embodiment is a kind of anti-neutron radiation polyester fiber preparation method, and the anti-neutron radiation polyester slice is made of terephthalic acid with a mass fraction of 76%, 23% ethylene glycol and mixed with the ethylene glycol and accounts for Its total weight is 25% of boride or heavy metal compound, and 0.5% of catalyst, 0.5% of stabilizer are esterified and polycondensed.

[0025] 1. Esterification: Put the mixture of terephthalic acid and ethylene glycol in the formula amount into the beating kettle for beating, then add the catalyst and stabilizer and mix evenly, then add it to the reaction kettle, heat up to 260°C, and react for 30 minutes , after the reaction is completed, the esterified product is sent to the polycondensation pump;

[0026] 2. Polycondensation: control the polycondensation reaction temperature at 290°C, vacuumize, and keep the vacuum at 0.1KPa to obtain a copolymer melt, extrude the copolymer melt once on a screw extr...

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PUM

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Abstract

The invention discloses an anti-neutron radiation polyester fiber preparation method. According to a specific embodiment, the preparation method comprises the following steps: mixing 52%-76% of terephthalic acid, 23%-48% of ethylene glycol, boride or a heavy metal compound, which is mixed into ethylene glycol and the weight of which accounts for the total weight of ethylene glycol by 16%-25%, 0.5%-5% of a catalyst and 0.3%-2% of a stabilizer in percentage by mass in a reaction kettle, reacting under a condition of 245-260 DEG C for 30-50min, and obtaining a copolymer melt on a polycondensation section under conditions of 260-290 DEG C and a vacuum degree of 0.1-10KPa; extruding the copolymer melt once on a screw extruder and drying to obtain an anti-neutron radiation terylene chip; and processing the chip by the screw extruder, a pre-filter, a static mixer, a metering pump and a spinning component, spinning, quenching air and applying oil, processing by a chimney, coiling, etc. to obtain an anti-neutron radiation polyester fiber. The preparation method disclosed by the invention has the beneficial effects that terylene, which serves as a carrier, is copolymerized with the heavy metal compound, and the terylene fiber not only has an anti-radiation function, but also integrates various features of the terylene.

Description

technical field [0001] The invention relates to the technical field of chemical fiber synthesis, in particular to a method for preparing neutron radiation-resistant polyester fibers. Background technique [0002] Petroleum logging, geological exploration, coal industry, instrument calibration room, military missile maintenance, nuclear reactor plant, nuclear raw material refinery, tank, armored vehicle crew, national defense ship repair personnel and chemical defense commanders nuclear protection and neutron protection, roads Construction of neutron measurement sites and other occasions with neutron radiation will cause failure of human hematopoietic organs, damage to the digestive system, and damage to the central nervous system. It can also cause malignant tumors, leukemia, cataracts, etc. Neutron radiation can also produce genetic effects, affecting the development of offspring of those exposed to radiation. [0003] Although people have developed some radiation-proof a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/84D01F1/10C08G63/183D01D13/00
Inventor 陈礼荣
Owner HAIAN HUARONG CHEM FIBER
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