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Graphene quantum dot reinforced polyarmide fiber and preparation method thereof

A technology of graphene quantum dots and polyamide fibers, which is applied in the field of composite fibers, can solve the problems of insufficient dispersion of graphene, and achieve the effects of low cost, excellent mechanical properties, and simple process flow

Inactive Publication Date: 2016-04-06
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of graphene quantum dot reinforced polyamide fiber and preparation method thereof, solves the problem that the dispersibility of graphene is not good enough in the composite fiber, the polyamide fiber prepared by this method has light weight, good strength, Advantages of high modulus

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  • Graphene quantum dot reinforced polyarmide fiber and preparation method thereof

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Embodiment 1

[0021] A kind of graphene quantum dot reinforced polyamide fiber and preparation method thereof, its preparation method is as follows figure 1 The following steps are shown:

[0022] 1. Preparation of polyamide 6-graphene quantum dot (PA6-GQD) masterbatch

[0023] 1) Get graphene quantum dot 6g, sodium lauryl sulfate 6g, be dissolved in the water of 588g, mechanically stir 3h, and cooperate ultrasonic dispersion (using ultrasonic cell breaker, its power 4000W), be mixed with the evenly dispersed graphene Quantum dot aqueous solution;

[0024] The graphite flakes of the graphene quantum dots used in this step are 1 to 3 layers, and the size is 10 to 100 nm;

[0025] 2) Put the above-mentioned graphene quantum dot aqueous solution into a vacuum drying oven at 100° C. for 1 hour to obtain graphene quantum dots containing a dispersant after being vacuum-filtered for 1 hour to drain the moisture;

[0026] 3) Take 89g of caprolactam and 10.1g of the above-mentioned graphene quant...

Embodiment 2

[0033] A kind of graphene quantum dot reinforced polyamide fiber and preparation method thereof, its preparation method is as follows figure 1 The following steps are shown:

[0034] 1. Preparation of polyamide 6-graphene quantum dot (PA6-GQD) masterbatch

[0035] 1) Take 3g of graphene quantum dots and 3g of nonylphenol polyoxyethylene ether (OP-10), dissolve them in 494g of water, stir them mechanically for 2.5h, and disperse them through a high-pressure homogenizer (Ultra-high pressure homogenizer JN-10HC , its power 2500W), be mixed with the graphene quantum dot aqueous solution of uniform dispersion;

[0036] The graphite flakes of the graphene quantum dots used in this step are 1 to 3 layers, and the size is 10 to 100 nm;

[0037] 2) After the above-mentioned graphene quantum dot aqueous solution is vacuum-filtered for 0.5h to drain the water, put it in a vacuum drying oven at 80° C. for 2 hours to obtain the graphene quantum dots containing the dispersant;

[0038] 3...

Embodiment 3

[0045] A kind of graphene quantum dot reinforced polyamide fiber and preparation method thereof, its preparation method is as follows figure 1 The following steps are shown:

[0046] 1. Preparation of polyamide 6-graphene quantum dot (PA6-GQD) masterbatch

[0047] 1) Get 4 g of graphene quantum dots and 2 g of sodium lauryl sulfate, dissolve them in 494 g of water, stir them mechanically for 3 h, and cooperate with ultrasonic dispersion (using an ultrasonic cell breaker with a power of 2000 W) to prepare evenly dispersed graphene Quantum dot aqueous solution;

[0048] The graphite flakes of the graphene quantum dots used in this step are 1 to 3 layers, and the size is 10 to 100 nm;

[0049] 2) After the above-mentioned graphene quantum dot aqueous solution is vacuum-filtered for 0.5h to drain the water, put it in a vacuum drying oven at 80° C. for 2 hours to obtain the graphene quantum dots containing the dispersant;

[0050] 3) Take 94.5g of caprolactam and 4.55g of the ab...

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Abstract

The invention provides graphene quantum dot reinforced polyarmide fiber and a preparation method thereof. The mechanical property of PA6 fiber is improved through the molecular template effect of graphene quantum dots and the staggered effect between graphene quantum dots and a PA6 texture structure; the high-strength and high-modulus PA6-GQD compound fiber with tensile strength of 0.72-1.05 GPa and initial modulus of 8-11 GPa is prepared through a traditional mature PA6 melt spinning process. Compared with traditional high-strength and high-modulus PA6 fiber, the graphene quantum dot reinforced polyarmide fiber has the advantages that the mechanical performance is more excellent, the technological process is simple, environment pollution is small, cost is low, the fiber is suitable for being produced on a large scale, an existing PA6 melt spinning process device does not need to be changed, the prepared PA6-GQD fiber has excellent mechanical performance, and the fiber can be used for the fields of tire curtain wires, industrial cloth, clothes, fishing nets and military war industry.

Description

technical field [0001] The invention belongs to the technical field of composite fibers, and relates to a graphene quantum dot reinforced polyamide fiber and a preparation method thereof. Background technique [0002] Polyamide fiber is commonly known as nylon, and its English name is Polyamide (abbreviated as PA). It is a general term for thermoplastic resins containing repeated amide groups—[NHCO]—on the main molecular chain. Polyamide fiber is the earliest industrialized synthetic fiber variety in the world. Its appearance has brought a new look to textiles. Its synthesis is a major breakthrough in the synthetic fiber industry and a very important milestone in polymer chemistry. Among them, polyamide 6 is one of the most widely used varieties, which is mainly used for spinning synthetic fibers, and its chain link structure is [NH(CH 2 ) 5 CO]. Polyamide 6 fiber has excellent properties such as high strength, good resilience, fatigue resistance, dyeability, corrosion re...

Claims

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Application Information

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IPC IPC(8): D01F6/90D01F1/10C08G69/16C08K3/04
CPCD01F6/90C08G69/16C08K3/04D01F1/10
Inventor 褚金李朝龙张恒池铫史浩飞杜春雷
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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