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Preparation method for 3D-printed conductive hydrogel

A conductive hydrogel, 3D printing technology, applied in the field of electrohydrogel, can solve the problem that conductive hydrogel cannot be printed, and achieve the effect of saving material application, simple process and simple operation

Inactive Publication Date: 2018-12-07
郭秋泉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the conductive hydrogels prepared by the above two methods cannot be easily printed on these 3D printers.

Method used

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  • Preparation method for 3D-printed conductive hydrogel
  • Preparation method for 3D-printed conductive hydrogel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 and figure 2 Shown, a kind of preparation method of 3D printing conductive hydrogel comprises the following steps:

[0026] S1. Take 30% PEGDA with a molecular weight of 700 Daltons and 70% water to form a mixture, add 2phr photoinitiator and 0.2phr dye, and mix uniformly to obtain a photocurable resin;

[0027] S2. Use Solidworks to design the three-dimensional digital model of the honeycomb structure and convert it into an STL file format. Use the prepared value to print the designed three-dimensional digital model on a DLP 3D printer to obtain a three-dimensional support structure of polyethylene glycol diacrylate. It has a plurality of irregular pores, the spacing between the pores is greater than 100 μm;

[0028] S3. Wash the printed structure with water to remove the uncured resin on the surface, and dry it;

[0029] S4, the polyethylene glycol diacrylate hydrogel structure was immersed in an aqueous solution containing 0.3M FeCl for 60 minute...

Embodiment 2

[0033] Such as figure 1 and figure 2 Shown, a kind of preparation method of 3D printing conductive hydrogel comprises the following steps:

[0034] S1. Take 40% polyethylene glycol diacrylate PEGDA with a molecular weight of 700 Daltons and 60% water to form a mixture, add 2phr photoinitiator and 0.2phr dye, and mix uniformly to obtain a photocurable resin;

[0035] S2. Use Solidworks to design the three-dimensional digital model of the honeycomb structure and convert it into an STL file format. Use the prepared value to print the designed three-dimensional digital model on a DLP 3D printer to obtain a three-dimensional support structure of polyethylene glycol diacrylate. It has a plurality of irregular pores, the spacing between the pores is greater than 100 μm;

[0036] S3. Wash the printed structure with water to remove the uncured resin on the surface, and dry it;

[0037] S4, the polyethylene glycol diacrylate hydrogel structure was immersed in an aqueous solution con...

Embodiment 3

[0041] Such as figure 1 and figure 2 Shown, a kind of preparation method of 3D printing conductive hydrogel comprises the following steps:

[0042] S1. Take 60% polyethylene glycol diacrylate PEGDA with a molecular weight of 700 Daltons and 40% water to form a mixture, add 2phr photoinitiator and 0.2phr dye, and mix uniformly to obtain a photocurable resin;

[0043] S2. Use Solidworks to design the three-dimensional digital model of the honeycomb structure and convert it into an STL file format. Use the prepared value to print the designed three-dimensional digital model on a DLP 3D printer to obtain a three-dimensional support structure of polyethylene glycol diacrylate. It has a plurality of irregular pores, the spacing between the pores is greater than 100 μm;

[0044]S3. Wash the printed structure with water to remove the uncured resin on the surface, and dry it;

[0045] S4, the polyethylene glycol diacrylate hydrogel structure was immersed in an aqueous solution cont...

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Abstract

The invention discloses a preparation method for a 3D-printed conductive hydrogel. The preparation method easily and efficiently realizes the conductivity of the hydrogel in two steps and effectivelyreduces the complex cross-linking process in direct preparation of a conductive hydrogel compound; a prepared hydrogel structure can be obtained through 3D printing, so the application scope of the structure is greatly broadened, and the problem of uneven mixing of a conductive filler in conventional methods is avoided; the method only realizes surface conduction, which is not only in accordance with requirements for conductivity in application but also allows the application of materials to be greatly saved; in addition, the obtained structure can achieve the purpose of multiple repairs to acertain extent; and the whole preparation method is simple and can be learned through simple training, so the method can be easily promoted to more people. The method of the invention can also be applied to the preparation of conductive polymers of other types, and is simple to operate, low in cost and suitable for large-scale industrial application.

Description

technical field [0001] The invention relates to the technical field of electrohydrogels, in particular to a method for preparing 3D printed electroconductive hydrogels. Background technique [0002] Conductive hydrogels combine the excellent properties of hydrogels and conductivity, and are very promising in many aspects. Conductive hydrogels are usually homogeneous combinations of highly hydrated polymers and conductive electroactive compounds. These hybrid materials combine hydrogel properties with the advantages of conductive components such as electrical conductivity and electrochemical redox properties. Applications include electrostimulatory drug delivery, biosensors, and modulation of cell function. [0003] Although conductive hydrogels have shown promising applications, their synthesis remains a major challenge. Generally, conductive hydrogels can be developed by introducing conductive elements such as graphite, metal particles, or carbon nanotubes into the hydrog...

Claims

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Application Information

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IPC IPC(8): C08J3/075C08L79/04C08L71/02C08G73/06
CPCC08G73/0611C08J3/075C08J2371/02C08J2379/04C08J2471/02C08J2479/04
Inventor 郭秋泉杨军
Owner 郭秋泉
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