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Polymer composite function fibers containing partial graphene, and preparation method thereof

A composite function, graphene technology, applied in the manufacture of fire-resistant and flame-retardant filaments, conductive/antistatic filaments, conjugated synthetic polymer artificial filaments, etc., can solve the problem of weakening high specific area, high conductivity and low overweight Problems such as permeation threshold, unfavorable industrial application, and low preparation efficiency have achieved the effect of meeting antistatic requirements, good application prospects, and high production efficiency.

Active Publication Date: 2015-10-28
NINGBO MYBABY BABY & CHILDREN PROD MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nano-sheet structure of graphene and the lack of active groups on the surface also lead to extremely high inter-sheet bonding, and it is difficult to peel off when directly mixed with polymers. Instead, it forms micron-scale aggregates, which seriously weakens its high specific area, Advantages such as high conductivity and low percolation threshold
Modification of graphene by means of chemical grafting can promote its dispersion in polymers, but the reaction process is complicated and the preparation efficiency is low, which is not conducive to industrial application

Method used

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  • Polymer composite function fibers containing partial graphene, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Take 2.8 kg of graphene oxide powder of the specifications shown in Table 1 and add it to 100 kg of ethylene glycol, stir mechanically for 30 minutes at room temperature, and then disperse with ultrasonic waves for 30 minutes to form a uniform and stable dispersed mixed slurry A; mix the mixed slurry A and purified terephthalic acid are added into the reaction kettle according to the molar ratio of ethylene glycol / purified terephthalic acid of 1.2 / 1, and antimony or titanium catalysts are added to carry out esterification at 215-235°C, and then at 260 Polyethylene terephthalate (PET) containing partially reduced graphene with a mass percentage of 1% is obtained by polymerizing at ~280°C as the A-component polyester. After testing, the intrinsic viscosity of the polyester is is 0.67dL / g, and the carbon / oxygen atomic ratio of partially reduced graphene is 3.5 / 1;

[0057] Get 5.7 kilograms of graphene oxide powder of specification shown in table 1 and mean diameter be the ...

Embodiment 2

[0060] Take 0.24 kg of graphene oxide powder of the specifications shown in Table 1 and add 100 kg of 1,3-propylene glycol, mechanically stir for 10 minutes at room temperature, and then disperse by ultrasonic waves for 60 minutes to form a uniform, stable and dispersed mixed slurry A; The mixed slurry A and purified terephthalic acid are added to the reaction kettle according to the molar ratio of 1,3-propanediol / purified terephthalic acid is 1.2 / 1, and a titanium series catalyst is added to carry out esterification at 205-225 °C, and then in Polytrimethylene terephthalate (PTT) containing partially reduced graphene with a mass percentage of 0.1% is obtained by polymerizing at 230-260°C as component A polyester. After testing, the intrinsic viscosity of the polyester is 0.92dL / g, the carbon / oxygen atomic ratio of partially reduced graphene is 5.3 / 1;

[0061] Get 5.8 kilograms of graphene oxide powder of specification shown in table 1 and mean diameter be the nano-titanium dio...

Embodiment 3

[0064] Take 1.2 kg of graphene oxide powder of the specifications shown in Table 1 and add it to 100 kg of 1,4-butanediol, stir it mechanically for 20 minutes at room temperature, and then disperse it by ultrasonic waves for 45 minutes to form a uniform, stable and dispersed mixed slurry A ;Put the mixed slurry A and purified terephthalic acid into the reaction kettle according to the molar ratio of 1,4-butanediol / purified terephthalic acid to 1.2 / 1, and add a titanium catalyst to carry out esterification at 215-235°C and then polymerized at 220-250°C to prepare polybutylene terephthalate (PBT) containing partially reduced graphene with a mass percentage of 0.55% as A-component polyester. After testing, the The intrinsic viscosity of polyester is 0.90dL / g, and the carbon / oxygen atomic ratio of partially reduced graphene is 4.2 / 1;

[0065] Get 7.8 kilograms of graphene oxide powders of specification shown in table 1 and mean diameter be the nano-titanium dioxide (TiO2) of 18 na...

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Abstract

The present invention discloses a polymer composite function fibers containing partial graphene, and a preparation method thereof. The fibers comprise a component A and a component B, wherein the component A and the component B are combined in a partial exposing manner, side-by-side manner or skin-core manner, and 20-100% of the outer area of each fiber is the component B. The method comprises: crystallizing a polyester containing 0.1-1 wt% of partial reducing graphene and a polyester containing 4-20 wt% of a nanometer composite filler containing partial reducing graphene and TiO2, drying, carrying out melt composite spinning, and carrying out drawing and relaxation heat setting at a temperature of 80-160 DEG C, and reducing the partial graphene in the fibers to achieve the carbon / oxygen atom ratio of 9 / 1-15 / 1 through the reducing treatment. According to the present invention, the prepared fibers can be produced at the high spinning speed, and the production efficiency is high; and the fibers have characteristics of low single fineness, high strength and lower resistivity, meets the antistatic requirement, and further has characteristics of anti-bacterial property and flame retardant property so as to provide good application prospects.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a polymer composite functional fiber containing partially reduced graphene and a preparation method thereof. Background technique [0002] Functional fibers refer to new fibers with one or more special functions, such as conductive fibers, flame-retardant fibers, antibacterial fibers, etc. Functional fibers have the characteristics of high technology content, high added value and high market demand. Taking conductive fiber as an example, due to its antistatic and electromagnetic wave absorption characteristics, it is an essential raw material for high value-added products such as antistatic explosion-proof clothing, dust-free and sterile clothing, high-end clothing and home textiles. It is used in aerospace, national defense, petrochemical, etc. , mining, microelectronics, biomedicine, precision machining, textiles and garments and many other fields, the market prospect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/09D01F1/07D01F11/08C08G63/183C08G63/189C08K3/04C08K3/22C08K7/24
Inventor 洪亮陈鹏
Owner NINGBO MYBABY BABY & CHILDREN PROD MFG
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