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Preparation method of graphene and polyester fibers

A polyester fiber and graphene technology, applied in the fiber field, can solve the problems of complex production process, high price, complicated equipment, etc., and achieve the effects of widening the scope of use, reducing production costs, and improving mixing effect.

Inactive Publication Date: 2017-12-12
福州市晋安区技智企业管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problems of complex equipment, high price, complicated production process and high cost in the production of graphene polyester fiber in the prior art, the invention provides a preparation method of graphene polyester fiber, which includes a feeding process, an esterification process, Polycondensation process and melt spinning process, in the feeding process, terephthalic acid and ethylene glycol are put into the reactor in a weight ratio of 1: (1 ~ 2), and the catalyst and graphene are added at the same time

Method used

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  • Preparation method of graphene and polyester fibers
  • Preparation method of graphene and polyester fibers
  • Preparation method of graphene and polyester fibers

Examples

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Embodiment 1

[0033] The present embodiment provides a kind of preparation method of graphene polyester fiber, and its preparation process is as follows:

[0034] (1) Preparation of graphene polyester masterbatch

[0035] Put terephthalic acid and ethylene glycol into the reactor at a weight ratio of 1:1, and add 0.03wt% catalyst ethylene glycol antimony and 0.001wt% graphene at the same time. The whole process is carried out under nitrogen protection. Set The nitrogen pressure is 0.3MPa, the stirring speed is 70r / min, and the esterification temperature is 240°C. After the esterification starts, wait until the amount of water evaporated reaches 85% of the theoretical value, release the pressure to normal pressure, and the esterification is completed; set The polycondensation temperature is 250°C, and the polycondensation time is 150min. After the polycondensation is completed, the material is discharged and pelletized.

[0036] (2) Melt spinning

[0037] Weigh 1g of polymer particles each...

Embodiment 2

[0039]The present embodiment provides a kind of preparation method of graphene polyester fiber, and its preparation process is as follows:

[0040] (1) Preparation of graphene polyester masterbatch

[0041] Put terephthalic acid and ethylene glycol into the reactor at a weight ratio of 1:1.2, and add 0.04wt% catalyst ethylene glycol antimony and 0.01wt% graphene at the same time. The whole process is carried out under nitrogen protection. Set The nitrogen pressure is 0.4MPa, the stirring speed is 80r / min, and the esterification temperature is 260°C. After the esterification starts, wait until the amount of water evaporated reaches 90% of the theoretical value, release the pressure to normal pressure, and the esterification is completed; set The polycondensation temperature is 260°C, and the polycondensation time is 180min. After the polycondensation is completed, the material is discharged and pelletized.

[0042] (2) Melt spinning

[0043] Weigh 1g of polymer particles each...

Embodiment 3

[0045] The present embodiment provides a kind of preparation method of graphene polyester fiber, and its preparation process is as follows:

[0046] (1) Preparation of graphene polyester masterbatch

[0047] Put terephthalic acid and ethylene glycol into the reactor at a weight ratio of 1:1.5, and add 0.03wt% catalyst antimony acetate and 0.1wt% graphene at the same time. The whole process is carried out under the protection of nitrogen. The pressure is 0.2MPa, the stirring speed is 60r / min, and the esterification temperature is 280°C. After the esterification starts, wait until the amount of water evaporated reaches 90% of the theoretical value, release the pressure to normal pressure, and the esterification ends; set polycondensation The temperature is 270°C, and the polycondensation time is 200 minutes. After the polycondensation is completed, the material is discharged and pelletized.

[0048] (2) Melt spinning

[0049] Weigh 1g of polymer particles each time, add them t...

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Abstract

The invention discloses a preparation method of graphene and polyester fibers, belonging to the field of textile fibers. The method comprises a feeding process, an esterification process, a polycondensation process and a melt spinning process, wherein the feeding process comprises the steps of adding p-phthalic acid and ethylene glycol into a reaction kettle according to a weight ratio of 1 to (1-2), and adding a catalyst and graphene at the same time. The preparation method provided by the invention has the beneficial effects that the mixing of graphene and polyester is shifted ahead to a preparation process of polyester chips; the graphene is added when the p-phthalic acid is mixed with the ethylene glycol, so that not only is the polyester fully mixed with the graphene in a molecular unit state, but the mixing effect of the polyester and the graphene is also improved; therefore, the character consistency and breaking strength of the graphene and polyester fibers are improved. Furthermore, when the preparation of the polyester chips is finished, the mixing of the polyester and the graphene is realized, so that the production process is shortened, and the production cost is lowered.

Description

technical field [0001] The invention relates to the field of fibers, in particular to a preparation method of graphene polyester fibers. Background technique [0002] Graphene is a two-dimensional sheet-like nanomaterial composed of a single layer of carbon atoms. 2 A planar film with a hexagonal honeycomb lattice structure formed by hybrid bonding. With superior optical, electrical, thermal and mechanical properties, it has attracted the interest of many researchers, and has rapidly grown into a research hotspot in the field of materials and theoretical research. In just a few years, a lot of exciting progress has been made. Graphene is another star carbon nanomaterial born after carbon nanotubes. It has a super high theoretical specific surface area (2630m 2 / g), high intrinsic mobility (200000cm 2 / V / s), high Young's modulus (~1.0T Pa) and theoretical conductivity, and high light transmittance (~5000W / m / K) and conductivity, etc., have great advantages in energy storag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/183C08G63/86
CPCC08G63/183C08G63/866D01F1/10D01F6/92Y02P20/54
Inventor 郑小华
Owner 福州市晋安区技智企业管理咨询有限公司
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