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Method for preparing radiation protection polyester fiber on basis of mechanically exfoliated graphene and method for spinning radiation protection polyester fiber

A polyester fiber, mechanical stripping technology, applied in the direction of single-component polyester rayon, fiber treatment, melt spinning, etc., can solve the problems of increased cost, lengthened preparation process, and unfavorable industrial production, etc., to improve production Efficiency, improved dispersion effect, excellent radiation protection effect

Inactive Publication Date: 2018-03-13
江苏双良低碳产业技术研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN103710790A discloses a method for preparing antistatic, antibacterial, and graphene-reinforced composite polyester fibers. The antistatic and antibacterial polyester fibers are prepared by a side-by-side composite method. This method does not involve graphene in-situ polymerization technology
CN104164707A discloses an antistatic masterbatch prepared by blending and granulating graphene and PET with surface sulfonic acid group functionalization to further prepare conductive fibers. This method lengthens the entire preparation process of the product and increases the cost, which is not conducive to industrialization Production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A radiation-resistant polyester fiber based on mechanically exfoliated graphene and a preparation method thereof are divided into the following steps:

[0029] (1) Put graphite flakes in ethylene glycol, exfoliate graphene by micromechanical exfoliation method, and add dispersant at the same time to form a stable graphene / ethylene glycol solution. Described dispersant is polyvinylpyrrolidone, and described dispersant content accounts for 0.5wt% of graphite content, and in the formed graphene / ethylene glycol solution, graphene content is 0.1wt% of ethylene glycol, and described The exfoliation temperature is 20° C., the planar size of the graphene is 1 μm, and the number of layers is 1 layer.

[0030] (2) Put the solution obtained in (1), terephthalic acid and additives in a polymerization tank for esterification reaction. During this process, the reaction temperature is 230°C, the reaction time is 3 hours, and the reaction pressure is 0.1Mpa. Reaction Alkyd dehydration...

Embodiment 2

[0039] A radiation-resistant polyester fiber based on mechanically exfoliated graphene and a preparation method thereof are divided into the following steps:

[0040] (1) Put graphite flakes in ethylene glycol, exfoliate graphene by micromechanical exfoliation method, and add dispersant at the same time to form a stable graphene / ethylene glycol solution. Described dispersant is polyvinylpyrrolidone, and described dispersant content accounts for 2wt% of graphite content, and in the formed graphene / ethylene glycol solution, graphene content is 10wt% of ethylene glycol, and described exfoliation temperature at 80°C, the plane size of the graphene is 10 μm, and the number of layers is 10.

[0041] (2) Put the solution obtained in (1), terephthalic acid and additives in a polymerization tank for esterification reaction. During this process, the reaction temperature is 250°C, the reaction time is 5 hours, and the reaction pressure is 0.2Mpa. Reaction Alkyd dehydration reaction; the...

Embodiment 3

[0050] A radiation-resistant polyester fiber based on mechanically exfoliated graphene and a preparation method thereof are divided into the following steps:

[0051] (1) Put graphite flakes in ethylene glycol, exfoliate graphene by micromechanical exfoliation method, and add dispersant at the same time to form a stable graphene / ethylene glycol solution. Described dispersant is polyvinylpyrrolidone, and described dispersant content accounts for 0.5wt% of graphite content, and in the formed graphene / ethylene glycol solution, graphene content is 2.5wt% of ethylene glycol, and described The exfoliation temperature is 60° C., the plane size of the graphene is 5 μm, and the number of layers is 8 layers.

[0052] (2) Put the solution obtained in (1), terephthalic acid and additives in a polymerization tank for esterification reaction. During this process, the reaction temperature is 240°C, the reaction time is 4 hours, and the reaction pressure is 0.15Mpa. Reaction Alkyd dehydratio...

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Abstract

The invention relates to a radiation protection polyester fiber on the basis of mechanically exfoliated graphene. The radiation protection polyester fiber is characterized in that flake graphite is exfoliated in ethylene glycol by the aid of micro-mechanical exfoliation processes to obtain graphene, dispersing agents are added into the graphene to form uniform, stable and dispersed graphene / ethylene glycol solution, then the graphene / ethylene glycol solution which is used is a raw material is polymerized in an in-situ manner to obtain high-dispersibility graphene / polyester, and melt spinning is ultimately carried out to obtain the radiation protection polyester fiber on the basis of the mechanically exfoliated graphene. According to the scheme, the radiation protection polyester fiber hasthe advantages that processes for synthesizing the radiation protection polyester fiber are simple, the radiation protection polyester fiber is low in cost, dispersion effects can be realized while the graphene is mechanically exfoliated, the problem of uneven dispersion of graphene in polyester melt at present can be solved, and the radiation protection polyester fiber has antistatic, far-infrared and anti-ultraviolet functionality and the like; the modified radiation protection polyester fiber is excellent in radiation protection performance; the prepared radiation protection polyester fiberon the basis of the mechanically exfoliated graphene can be widely applied to the fields of home textiles, dressing clothes, armies and the like.

Description

technical field [0001] The patent of the present invention relates to a preparation method and spinning method of radiation-proof polyester fibers based on mechanical exfoliation of graphene, and belongs to the technical field of chemical fiber manufacturing. Background technique [0002] Polyester fiber (PET) has become the largest and most representative fiber among the three major synthetic fibers in my country because of its excellent physical properties, good chemical stability and excellent processing performance. In addition to the clothes we are familiar with, the application of polyester fibers in military, industrial and other fields is showing a growing trend. In the application process of these fields, it needs to withstand the test of high-energy radiation, and the radiation shielding dB value is the radiation protection of polyester fibers. Important indicators. People who have been exposed to microwave radiation for a long time will have a certain degree of i...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01D5/08D01D5/088D01D5/12D01D10/04C08G63/78C08G63/183
CPCC08G63/183C08G63/78D01D5/08D01D5/088D01D5/12D01D10/0436D01F1/106D01F6/92
Inventor 章国明徐尧陈烨汤廉吴刚
Owner 江苏双良低碳产业技术研究院有限公司
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