Conductive resin for 3D printing technology, and preparation method and application thereof

A conductive resin and 3D printing technology, applied in the field of 3D printing materials, can solve the problems of poor flexibility and elasticity of resin, affect the mechanical properties and conductivity of printing materials, and uneven mixing of conductive fillers and resins, so as to improve adsorption, Effect of improving conductivity stability, increasing tensile strength and elongation at break

Active Publication Date: 2022-01-21
SOUTHWEST MEDICAL UNIVERISTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a conductive resin used in 3D printing technology and its preparation method and application to solve the problem of uneven mixing of conductive fillers and resin in existing 3D printing materials and poor flexibility and elasticity of the resin, thereby affecting printing. Material mechanical properties and electrical conductivity issues

Method used

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  • Conductive resin for 3D printing technology, and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The conductive resin used in 3D printing technology in this embodiment includes: by weight, 60 parts of polymerization reaction materials, 20 parts of conductive materials and 0.5 parts of photoinitiator;

[0029] The polymerization reaction material includes: hydroxyethyl acrylate, polyethylene glycol diacrylate, polyvinyl alcohol, acrylamide and acrylate-modified polydimethylsiloxane, the mass ratio of which is 0.5:0.01:0.1:0.5 : 0.1.

[0030] The conductive material includes: silver nanowires.

[0031] The photoinitiator includes: (2,4,6-trimethylbenzoyl)diphenylphosphine oxide.

[0032] The preparation method of the conductive resin used for 3D printing technology of the present embodiment comprises the following steps:

[0033] Disperse the conductive material into water or ethanol to obtain a dispersion liquid, then mix the polymerization reaction materials evenly, heat and evaporate the water in the mixed system, and then introduce a photoinitiator to obtain a ...

Embodiment 2

[0035] The conductive resin used in 3D printing technology in this embodiment includes: by weight, 70 parts of polymerization reaction material, 25 parts of conductive material and 1 part of photoinitiator.

[0036] The polymerization reaction material includes: hydroxyethyl acrylate, polyethylene glycol diacrylate, polyvinyl alcohol, acrylamide and acrylate modified polydimethylsiloxane, the mass ratio of which is 0.6:0.05:0.1:0.6 : 0.2.

[0037] The conductive material includes: carbon nanotubes.

[0038] The photoinitiator includes: (2,4,6-trimethylbenzoyl)diphenylphosphine oxide.

[0039] The preparation method of the conductive resin used for 3D printing technology of the present embodiment comprises the following steps:

[0040]Disperse the conductive material into water or ethanol to obtain a dispersion liquid, then add the polymerization reaction material and mix evenly, heat and evaporate the water in the mixed system, and then introduce a photoinitiator to obtain a...

Embodiment 3

[0042] The conductive resin used for 3D printing technology in this embodiment includes: by weight, 75 parts of polymerization reaction materials, 27 parts of conductive materials and 1.5 parts of photoinitiator;

[0043] The polymerization reaction material includes: hydroxyethyl acrylate, polyethylene glycol diacrylate, polyvinyl alcohol, acrylamide and acrylate-modified polydimethylsiloxane, the mass ratio of which is 0.7:0.1:0.15:0.7 : 0.3.

[0044] The conductive material includes: poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS).

[0045] The photoinitiator includes: (2,4,6-trimethylbenzoyl)diphenylphosphine oxide.

[0046] The preparation method of the conductive resin used for 3D printing technology of the present embodiment comprises the following steps:

[0047] Disperse the conductive material into water or ethanol to obtain a dispersion liquid, then add the polymerization reaction material and mix evenly, heat and evaporate the water in the mix...

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Abstract

The invention discloses a conductive resin for a 3D printing technology, and a preparation method and application thereof, and belongs to the technical field of 3D printing materials. The conductive resin comprises, by weight, 70-95 parts of a polymerization reaction material, 20-35 parts of a conductive material and 0.5-3 parts of a photoinitiator, and the polymerization reaction material comprises hydroxyethyl acrylate, polyethylene glycol diacrylate, polyvinyl alcohol, acrylamide and modified polydimethylsiloxane. According to the polymerization reaction material disclosed by the invention, the components are mutually cooperated, and a stable three-dimensional network structure is formed through physical crosslinking and chemical crosslinking, so that the mechanical property of the resin can be effectively improved, and the problem that the conductive material dispersed in water is uniformly dispersed in the resin is solved; therefore, the conductive stability of the conductive resin is improved, and the problem that the mechanical property of conductive hydrogel with similar components becomes poor due to water loss is solved. The resin is simple in preparation method, is manufactured through a photocuring 3D printing technology, and has a huge application prospect in the fields of flexible sensing and the like.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a conductive resin used in 3D printing technology and its preparation method and application. Background technique [0002] 3D printing technology, also known as additive manufacturing, aims to create complex three-dimensional structures without the need for molds or machining. Due to the diversity of photocurable resin formulations and the adjustable openness of components, photopolymerization-based 3D printing technology has more advantages in market applications, and is suitable for printing three-dimensional graphics with smooth surfaces and fine structures. 3D photopolymerization technologies such as stereolithography (SLA), digital light processing (DLP) and continuous liquid interface production (CLIP) enable the 3D fabrication of complex multifunctional material systems with controllable optical, chemical, and mechanical properties. High resolution at low f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F291/08C08F291/16C08F220/20C08F220/56C08F2/44C08K7/06C08K3/04C08K3/14C08K3/28C08L51/08C08L51/00C08L65/00C08L25/18G01L1/16G01L9/08B33Y70/10
CPCC08F283/065C08F283/124C08F216/06C08F2/44C08K7/06C08K3/041C08K3/042C08K3/14C08K3/28C08L51/085G01L1/16G01L9/08B33Y70/10C08K2201/001C08K2201/011C08L2201/04C08F220/20C08F220/56C08L51/08C08L51/003C08L65/00C08L25/18
Inventor 王力罗亚梅周赟
Owner SOUTHWEST MEDICAL UNIVERISTY
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