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Graphene oxide/light cured resin composite and its preparation method and application

A technology of light-curing resin and composite material, applied in the field of graphene oxide/light-curing resin composite material and its preparation, can solve the problems of inability to print materials with 3D printers, difficult to achieve instant rapid curing, long curing time, etc. Elongation and maximum bending strain, good market application prospects, effect of improved impact strength

Active Publication Date: 2014-05-28
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, there are very few studies on the composite of graphene oxide and photocurable resin. The patent published by the University of Electronic Science and Technology of China (CN 102127324 A) mentions a graphene-doped adhesive that requires dual curing. Adhesives include UV curing-heat curing system, UV curing-microwave curing system, UV curing-anaerobic curing system and UV curing-electron beam curing system. The curing process requires two curing methods to be repeated, and the curing time is longer , it is difficult to achieve instant fast curing
Such photosensitive resins cannot meet the requirements of instant curing for 3D printing, and cannot be used as printing materials for 3D printers
The technical difficulty in preparing graphene oxide / light-curable resin composites lies in the fact that graphene oxide has a certain absorption effect on ultraviolet light, which leads to the non-curing of the light-curable resin or the reduction of the curing depth.

Method used

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  • Graphene oxide/light cured resin composite and its preparation method and application
  • Graphene oxide/light cured resin composite and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A kind of graphene oxide / cationic photocurable 3D printing material and preparation method thereof

[0045] 1. Dissolve 0.11g of graphene oxide in tetrahydrofuran to prepare a suspension in which the mass of graphene oxide accounts for 0.1wt% of the total mass of the suspension, and use an ultrasonic instrument with a power of 200W and a frequency of 21kHz to ultrasonically disperse at 0°C for 4 hours , to obtain a suspension of graphene oxide / tetrahydrofuran;

[0046] 2. Dissolve 100g of 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl carboxylate in 100g of tetrahydrofuran, and sonicate for 30min with an ultrasonic instrument with a power of 32W and a frequency of 40kHz;

[0047] 3. Mix the graphene oxide / THF suspension prepared in step 1 with the 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl carboxylate / THF solution prepared in step 2 in a beaker , using an ultrasonic instrument with a power of 32W and a frequency of 40kHz for 36 hours;

[0048] 4. Mix 5 g of sulfoniu...

Embodiment 2

[0050] A kind of graphene oxide / free radical photocurable 3D printing material and preparation method thereof

[0051] 1. Dissolve 0.11g of graphene oxide in tetrahydrofuran to make a suspension with graphene oxide mass accounting for 0.1wt% of the total mass of the suspension, and use an ultrasonic instrument with a power of 200W and a frequency of 21kHz to disperse at 0°C for 4 Hour, obtain the suspension of graphene oxide / THF;

[0052] 2. Dissolve 50g of polyether acrylate and 50g of tripropylene glycol diacrylate in 100g of tetrahydrofuran, and use an ultrasonic instrument with a power of 32W and a frequency of 40kHz for 30min;

[0053] 3. Mix the graphene oxide / tetrahydrofuran suspension prepared in step 1 with the mixed solution prepared in step 2 in a beaker, and use an ultrasonic instrument with a power of 32W and a frequency of 40kHz for 1.5 hours;

[0054] 4. Mix 4g of 1-hydroxycyclohexylacetophenone and 40g of tetrahydrofuran and add it to the mixed solution prepar...

Embodiment 3

[0056] A graphene oxide / free radical-cation hybrid light-cured 3D printing material and its preparation method

[0057] 1. Dissolve 0.11g of graphene oxide in tetrahydrofuran to prepare a suspension in which the mass of graphene oxide accounts for 0.1wt% of the total mass of the suspension, and use an ultrasonic instrument with a power of 200W and a frequency of 21kHz to ultrasonically disperse at 0°C for 4 hours , to obtain a suspension of graphene oxide / tetrahydrofuran;

[0058] 2. Dissolve 25g of 4,5-epoxycyclohexane-1,2-dicarboxylic acid diglycidyl ester, 25g of 4-vinyl epoxycyclohexane, and 50g of polyether acrylate in 100g of tetrahydrofuran, using a power of 32W, frequency of 40kHz ultrasound machine ultrasound 30min;

[0059] 3. Mix the graphene oxide / tetrahydrofuran suspension prepared in step 1 with the mixed solution prepared in step 2 in a beaker, and use an ultrasonic instrument with a power of 32W and a frequency of 40kHz for 2 hours;

[0060] 4. Mix 4g of 1-hy...

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Abstract

The invention provides a graphene oxide / light cured resin composite and its preparation method and application, the graphene oxide / light cured resin composite comprises two phases of graphene oxide and light cured resin, the graphene oxide is evenly dispersed in the light curing resin, the content of the graphene oxide is 0.1-1wt%, and the light cured resin comprises an oligomer, a light initiator and an active diluent. A graphene oxide nano material is dispersed in the light curing resin to obtain the graphene oxide / light cured resin nano composite, elongation at break and maximum bending strain of ordinary light cured resin is improved to a certain extent, and the impact strength of a coating film is increased by 2 times, so that a part printed by a 3D printer has better mechanical property.

Description

technical field [0001] The invention belongs to the field of polymer nanocomposite materials, and in particular relates to a graphene oxide / photocurable resin composite material and its preparation method and application. Background technique [0002] Rapid prototyping technology (Rapid Prototyping, RP) is a new technology based on material accumulation method, which is considered to be a major achievement in the field of manufacturing in the past 20 years. It integrates mechanical engineering, CAD, reverse engineering technology, layered manufacturing technology, numerical control technology, material science, and laser technology, and can automatically, directly, quickly and accurately transform design ideas into prototypes with certain functions or directly manufacture parts , so as to provide a high-efficiency and low-cost realization means for parts prototype production and verification of new design ideas. At present, rapid prototyping technology is also called "3D pr...

Claims

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Application Information

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IPC IPC(8): C08G59/24C08K3/04C08F290/06C08G59/36B29C67/24
Inventor 魏燕彦马凤国林润雄
Owner QINGDAO UNIV OF SCI & TECH
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