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Preparation method of graphene modified nylon 6 fiber

A graphene modification and graphene technology, which is applied in the field of fiber materials, can solve the problems that the dispersibility has not been effectively improved, and achieve the effects of facilitating industrial application, improving overall performance, and good dispersibility

Active Publication Date: 2015-02-18
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the Chinese invention patent "A Preparation Method of Nylon 6 / Graphite Oxide Nanocomposite" (CN101760011A), graphite oxide and caprolactam are used for in-situ polymerization, and nylon 6 is grafted onto graphene, thereby dispersing graphene in nylon 6, but its dispersion has not been effectively improved

Method used

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  • Preparation method of graphene modified nylon 6 fiber
  • Preparation method of graphene modified nylon 6 fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0020] In this example, the graphite powder is purified, acidified, acylated, and aminated, and then reacted with caprolactam to obtain aminated graphene-modified nylon 6, which is then spun to obtain fibers. Specific steps are as follows:

[0021] 1. In a 300ml three-neck flask, add 1g of dried graphite powder raw material and 100ml of concentrated nitric acid solution, ultrasonically treat for 36 hours, stir and heat to 60°C, react for 6 hours, filter with 0.22um PTFE microporous Membrane suction filtration, and washing with deionized water to neutrality, after vacuum drying at 80°C for 24 hours, purified graphene was obtained;

[0022] 2. In a 300ml three-neck flask, add 0.5g of the purified graphene obtained in step 1, 5g of potassium permanganate and 100ml of concentrated nitric acid. After ultrasonic treatment for 2 hours, stir and heat to 120°C, and react under reflux for 24 hours. Suction filtration through a 0.22um microporous membrane, washing with deionized water u...

Embodiment 2

[0027] 1. In a 300ml three-neck flask, add 1g of dried graphite powder raw material and 100ml of concentrated nitric acid solution, ultrasonically treat for 36 hours, then heat to 60°C, react for 24 hours, and use a 0.22um pore size polytetrafluoroethylene microporous filter membrane Suction filtration, washing with deionized water until neutral, and vacuum drying at 80° C. for 24 hours to obtain purified graphene.

[0028] 2. In a 300ml three-neck flask, add 0.5g of purified graphene obtained in step 1 and 100ml of concentrated nitric acid, heat it to 120°C after ultrasonic treatment for 2 hours, stir and react under reflux for 24 hours, and use micropores with a pore size of 0.22um The filter membrane was suction-filtered, washed with deionized water until neutral, and vacuum-dried at 80° C. for 24 hours to obtain carboxylated graphene.

[0029] 3. In a 300ml three-neck flask, add 0.4g of carboxylated graphene and 10g of thionyl chloride obtained in step 2, heat to 70°C afte...

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Abstract

The invention relates to a preparation method of a graphene modified nylon 6 fiber and belongs to the technical field of a functional fiber material. The preparation method comprises the following steps of: carrying out carboxylation and acylating chlorination treatment on graphene; then carrying out diamine treatment to obtain graphene oxide with an active amino on the surface; carrying out polymerization reaction by utilizing the aminated graphene and caprolactam through an initiator 6-aminocaproic acid to prepare a modified nylon 6 melt of the graphene; and carrying out spinning and stretching through a fusion and spinning process to obtain the graphene modified nylon 6 fiber. The technical scheme of the invention utilizes aminated graphene enhanced 6 to improve the interface bonding strength with a base resin, so as to be good for improving the whole performance of the graphene modified nylon 6 fiber. A fiber material prepared by the preparation method provided by the invention can be widely applied to the technical fields of aerospace, cars and ships, communication and transportation, mechano-electronics and the like.

Description

technical field [0001] The invention belongs to the technical field of fiber materials, and in particular relates to a preparation method of graphene-modified nylon 6 fibers. Background technique [0002] With its excellent thermoplasticity, nylon 6 is an important raw material for tire cords and engineering plastics as an industrial product. Carbon material is the most common and most wonderful material on the earth. It can form the hardest diamond in the world and the softest graphite. At present, graphene has become a high-profile international research frontier and hot material. [0003] The key to preparing graphene / polymer materials with excellent performance is to solve the problem of graphene being uniformly dispersed in the matrix and forming a good interface, so that there is good adhesion between graphene and the matrix, and the stress is transferred to the graphene. , to enhance the effect. In the Chinese invention patent "Injection-grade graphite-filled high-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/96D01F1/10C08G83/00C08K9/04C08K9/02C08K3/04
Inventor 戴礼兴侯文俊唐柏青陆玲玲
Owner SUZHOU UNIV
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