Graphene oxide reinforced nylon material and its preparation method and application

A graphene and stone oxide technology, which is applied to graphene oxide reinforced nylon material and its preparation method and application field in 3D printing, can solve the problems of poor interfacial bonding force, poor dispersibility, low regional performance, etc. The effect of strong interface bonding, simple raw material formula, and not easy to agglomerate

Active Publication Date: 2017-10-03
CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since graphene is easy to agglomerate and has poor dispersion in nylon materials, the direct addition method often cannot obtain a uniformly dispersed graphene / nylon composite material, resulting in high performance in regions with high graphene content and low performance in regions with low content. Causes unstable properties of composite materials and affects its use
At the same time, due to the stable chemical properties of graphene, it is difficult to form a chemical bond with other substances, and the interface bonding force is poor, resulting in poor enhancement effect

Method used

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  • Graphene oxide reinforced nylon material and its preparation method and application

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Embodiment 1

[0037] The graphene oxide reinforced nylon material in this embodiment is composed of the following components and parts by weight: graphene oxide: 0.02 kg, nylon 12: 1.98 kg.

[0038] The preparation method of graphene oxide reinforced nylon material in this embodiment includes the following steps:

[0039] (1) Add 0.02kg of graphene oxide and 0.02kg of cetyltrimethylammonium bromide to 2L of ethanol, and perform ultrasonic oscillation for 3h at an ultrasonic frequency of 20kHz;

[0040] (2) Dry the ultrasonically oscillated solution obtained in step (1) at 50°C for 1 hour to obtain 0.02 kg of modified graphene oxide powder;

[0041] (3) Add 0.02 kg of the modified graphene oxide powder obtained in step (2) and 1.98 kg of nylon 12 into 25L ethanol, place them in a reaction kettle, mix and stir, pour in nitrogen and pressurize to 2.3MPa, and heat to 180°C, Until the nylon is completely dissolved, the mixed solution in the reactor is cooled to 120°C at a rate of 0.6°C / min in the first ...

Embodiment 2

[0046] The graphene oxide reinforced nylon material in this embodiment is composed of the following components and parts by weight: graphene oxide: 0.002 kg, and nylon 12: 1.998 kg.

[0047] The preparation method of graphene oxide reinforced nylon material in this embodiment includes the following steps:

[0048] (1) Add 0.002kg of graphene oxide and 0.1kg of octadecyltrimethylammonium chloride to 2L of acetone, and perform ultrasonic oscillation for 0.5h at an ultrasonic frequency of 100kHz;

[0049] (2) Dry the solution obtained in step (1) after ultrasonic vibration at 50° C. for 0.5 h to obtain 0.002 kg of modified graphene oxide powder;

[0050] (3) Add 0.002kg of the modified graphene oxide powder obtained in step (2) and 1.998kg of nylon 12 into 25L acetone, place them in a reaction kettle, mix and stir, blow in nitrogen, pressurize to 1.2MPa, and heat to 140°C, Until the nylon is completely dissolved, the mixed solution in the reactor is first cooled to 80°C at a rate of 0.3°...

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Abstract

The invention discloses an oxidized graphene-reinforced nylon material as well as a preparation method and application thereof. The oxidized graphene-reinforced nylon material comprises the following components in parts by weight: 0.1-1.0 part of oxidized graphene and 99.0-99.9 parts of nylon. The preparation method comprises the following steps: (1) adding oxidized graphene and a surfactant into an organic solvent I for ultrasonic vibration; (2) carrying out drying to obtain modified oxidized graphene powder; (3) adding the modified oxidized graphene powder and nylon into an organic solvent II for mixing and stirring, carrying out pressurization and heating till nylon is dissolved, and then conducting cooling and depressurization on the reaction kettle to obtain a mixed suspension; (4) conducting filtration and screening on the mixed suspension to obtain the oxidized graphene-reinforced nylon material. In the oxidized graphene-reinforced nylon material, oxidized graphene is distributed uniformly, and no additive is added during preparation, so that the products manufactured by applying the oxidized graphene-reinforced nylon material to 3D printing are high in performance.

Description

Technical field [0001] The invention relates to a nylon material, a preparation method thereof, and application in 3D printing, in particular to a graphene oxide reinforced nylon material, a preparation method thereof, and application in 3D printing. Background technique [0002] 3D printing, also known as additive manufacturing, is a revolutionary technological breakthrough in the manufacturing field in the past 20 years. It has been widely used in aviation, aerospace, medical, automotive, construction and other fields. However, materials have become a constraint on the rapid development of 3D printing. An important factor. Currently, the polymer materials that can be used for 3D printing mainly include nylon, photosensitive resin, polylactic acid, polycarbonate, and ABS. Compared with other materials, nylon materials are widely used in various shells, pipes, gaskets, blades, handles and other parts in the automotive industry and power tool industry because of their excellent p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L77/02C08K9/04C08K3/04
CPCC08K3/04C08K9/04C08L77/06C08L77/02
Inventor 周朝辉曹远尼李彬胡盛青
Owner CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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