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Graphene oxide and tannic acid compound enhanced polylactic acid 3D printing material and preparation method thereof

An enetannic acid, 3D printing technology, applied in the field of 3D printing, can solve the problems of high price of polylactic acid, poor functionality, poor heat resistance, etc., and achieve the effects of low equipment requirements, improved mechanical properties, and smooth and dense structure.

Inactive Publication Date: 2019-04-09
广安长明高端产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polylactic acid is expensive, has poor toughness, poor heat resistance, and poor functionality, which limits its application.

Method used

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  • Graphene oxide and tannic acid compound enhanced polylactic acid 3D printing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation of graphene oxide tannic acid composite reinforced polylactic acid 3D printing material

[0020] (1) Add graphene oxide and tannic acid into water according to the mass-volume ratio of 1:1:500, ultrasonicate with 100w ultrasonic power for 30min, place it in the reactor, and react at 180°C for 12h to obtain a hydrogel. After the hydrogel is crushed, it is washed with water, filtered, and dried at 80° C. for 0.5 h to obtain a graphene oxide tannic acid complex; the unit of mass-volume ratio is g:g:mL;

[0021] (2) Mix the graphene oxide tannic acid compound prepared in step (1) with polylactic acid at a mass ratio of 1:49, extrude and granulate through an extruder, and dry at 80°C for 3 hours to obtain graphite oxide Ethylene tannic acid complex polylactic acid particles;

[0022] (3) Drawing the graphene oxide tannic acid composite polylactic acid particles obtained in step (2) through a wire drawing machine to obtain a graphene oxide tannic acid composite r...

Embodiment 2

[0024] Preparation of graphene oxide tannic acid composite reinforced polylactic acid 3D printing material

[0025] (1) Add graphene oxide and tannic acid into water according to the mass volume ratio of 1:0.5:500, ultrasonicate with 150w ultrasonic power for 20min, place it in the reactor, and react at 175°C for 12h to obtain a hydrogel. The hydrogel was crushed, washed with water, filtered and dried at 60° C. for 1 h to obtain a graphene oxide tannic acid complex; the unit of mass-volume ratio was g:g:mL;

[0026] (2) Mix the graphene oxide tannic acid compound prepared in step (1) with polylactic acid at a mass ratio of 1:19, extrude and granulate through an extruder, and dry at 60°C for 2.5 hours to obtain oxidized Graphene tannic acid composite polylactic acid particles;

[0027] (3) Drawing the graphene oxide tannic acid composite polylactic acid particles obtained in step (2) through a wire drawing machine to obtain a graphene oxide tannic acid composite reinforced pol...

Embodiment 3

[0029] Preparation of graphene oxide tannic acid composite reinforced polylactic acid 3D printing material

[0030] (1) Add graphene oxide and tannic acid into water according to the mass volume ratio of 1:1.5:500, ultrasonicate with 125w ultrasonic power for 25min, place in the reactor, and react at 185°C for 11h to obtain a hydrogel. After the hydrogel is crushed, it is washed with water, filtered, and dried at 70°C for 1 hour to obtain a graphene oxide tannic acid complex; the unit of the mass-volume ratio is g:g:mL;

[0031] (2) Mix the graphene oxide tannic acid compound prepared in step (1) with polylactic acid at a mass ratio of 1:9, extrude and granulate through an extruder, and dry at 70°C for 2 hours to obtain graphite oxide Ethylene tannic acid complex polylactic acid particles;

[0032] (3) Drawing the graphene oxide tannic acid composite polylactic acid particles obtained in step (2) through a wire drawing machine to obtain a graphene oxide tannic acid composite ...

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Abstract

The invention relates to a graphene oxide and tannic acid compound enhanced polylactic acid 3D printing material and a preparation method thereof and belongs to the technical field of 3D printing. Themethod comprises the steps: adding a graphene oxide and tannic acid compound into polylactic acid, and carrying out pelletizing and wire drawing to finally prepare the graphene oxide and tannic acidcompound enhanced polylactic acid 3D printing material. By controlling the addition amount of the graphene oxide and tannic acid compound in a preparation process, the finally prepared 3D printing material has relatively good tensile strength, impact strength and compressive strength, and a product printed by taking the 3D printing material as a raw material has a smooth and dense appearance and an integrated structure and high printing precision. The preparation method is simple in preparation process, easy to operate, low in equipment requirement, high in production efficiency, environment-friendly, suitable for industrial production and capable of solving the problems of few variety, low production efficiency, complex process and high cost of an existing 3D printing wire.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a preparation method and a product of a graphene oxide tannic acid compound reinforced polylactic acid 3D printing material. Background technique [0002] 3D printing is the use of digital means to quickly manufacture single-piece or small-batch products of different materials and complex structures, so that the production of products can be realized in people's lives. It is known as an emerging force leading the future development of the manufacturing industry. With the development of science and technology, the rise of smart homes and smart cities, the gradual maturity of smart manufacturing, and the maturity of 3D printing technology, its market and potential will become larger and larger, and its dominant position will become more obvious. In addition, my country also clearly regards the intelligent manufacturing industry as the focus of development. Under the...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08K3/04C08K5/1545B33Y70/00
CPCB33Y70/00C08K5/1545C08K3/042C08L67/04
Inventor 杨超杨军陈久存
Owner 广安长明高端产业技术研究院
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