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Preparation method and application of conductive gel material

A technology of conductive gel and surfactant, applied in the field of preparation of conductive gel materials, can solve the problems of lack of self-healing ability, limitation, poor biocompatibility and high toxicity, etc.

Pending Publication Date: 2022-01-07
广西荣达新材料有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, most of the currently reported conductive gels use polyurethane as the basic material, and are formed by doping highly toxic conductive polymers, layered graphene materials or metal ions through covalent or coordination crosslinking. It often has poor biocompatibility and high toxicity, and does not have self-healing ability, so it is limited in the field of flexible wearable materials; moreover, the conductive gel materials prepared by the above methods are often not degradable and harmful to the environment. cause load

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  • Preparation method and application of conductive gel material
  • Preparation method and application of conductive gel material
  • Preparation method and application of conductive gel material

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preparation example Construction

[0032] The invention provides a kind of preparation method of conductive gel material, comprises the following steps:

[0033] (1) Dissolve β-D-mannuronic acid and α-L-guluronic acid at a mass ratio of 1:1, add concentrated sulfuric acid and react at 80°C to obtain polymer A;

[0034] (1) mixing polyvinyl butyral butyral, polymer A, sodium carbonate, natural polymer and water to obtain a conductive precursor solution;

[0035] (2) Mixing the aqueous surfactant solution and the conductive precursor solution, and performing precooling treatment and freeze-thaw cycle treatment on the mixture in turn to obtain a conductive gel material;

[0036] The surfactant is an anionic surfactant.

[0037] The invention mixes polyvinyl butyral butyral, β-D-mannuronic acid, sodium carbonate, natural high polymer and water to obtain a conductive precursor solution. In the present invention, the mass ratio of the polyvinyl butyral butyral to the polymer A is preferably 2-10:1, more preferably ...

Embodiment 1

[0051] (1) Dissolve β-D-mannuronic acid and α-L-guluronic acid at a mass ratio of 1:1, add concentrated sulfuric acid and react at 80°C to obtain polymer A;

[0052] (2) Preparation of conductive precursor solution:

[0053] Add the mixture of polyvinyl butyral and polymer A to deionized water, wherein the ratio of the mixture of polyvinyl butyral and polymer A to deionized water is 1.0g:10mL, polyvinyl butyral and The mass ratio of polymer A is 2:1. After mixing evenly, put it in a magnetic stirrer at 90°C, and then add sodium carboxymethyl cellulose (CMC -Na), wherein the ratio of carboxymethylcellulose sodium (CMC-Na) and polyvinyl butyral to polymer A mixed solution is 0.01g: 10mL, stirred for 1h until completely dissolved to obtain a conductive precursor solution;

[0054] (3) Preparation of self-healing degradable porous conductive gel material:

[0055] Firstly, a sodium dodecylbenzenesulfonate aqueous solution with a concentration of 0.02g / mL was prepared, and then t...

Embodiment 2

[0063] (1) Dissolve β-D-mannuronic acid and α-L-guluronic acid at a mass ratio of 1:1, add concentrated sulfuric acid and react at 80°C to obtain polymer A;

[0064] (2) Preparation of conductive precursor solution

[0065] Add the mixture of polyvinyl butyral and polymer A to deionized water, wherein the ratio of the mixture of polyvinyl butyral and polymer A to deionized water is 1.2g:10mL, polyvinyl butyral and The mass ratio of polymer A is 4:1. After mixing evenly, place it in a magnetic stirrer at 92°C, and then add soluble starch to the above mixed solution of polyvinyl butyral and polymer A, wherein soluble starch and The ratio of the mixed solution of polyvinyl butyral and polymer A is 0.02g:10mL, stirred for 1.5h until completely dissolved to obtain a conductive precursor solution;

[0066] (3) Preparation of self-healing degradable porous conductive gel materials

[0067] First prepare the aqueous solution of sodium α-alkenyl sulfonate with a concentration of 0.04...

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Abstract

A preparation method of a conductive gel material comprises the following steps: (1) mixing polyvinyl butyral, a polymer A, sodium carbonate, a natural polymer and water to obtain a conductive precursor solution; and (2) mixing the surfactant aqueous solution and the conductive precursor solution, and sequentially carrying out pre-cooling treatment and freezing-unfreezing circulation treatment on the mixture to obtain the self-repairing degradable porous conductive gel material. The porous conductive gel material provided by the invention is uniform and controllable in internal pore size; a large number of free ions exist inside, so that the material has excellent conductivity; and the porous conductive gel material provided by the invention has relatively strong mechanical performance and self-repairing performance, is degradable and has good biocompatibility. The result of the embodiment shows that the porous conductive gel material provided by the invention can realize self-repairing within 5s, and the stress before and after healing is basically unchanged; and the degradation rate in water at 70 DEG C for 40 minutes can reach about 100%.

Description

technical field [0001] The invention relates to the technical field of conductive materials, in particular to a preparation method and application of a conductive gel material. Background technique [0002] Flexible wearable materials are new lightweight materials that have emerged in recent years, and have attracted extensive attention from developers because of their light weight and portability. In recent years, flexible materials have experienced rapid development from organic polymer composite insulating materials to conductive materials. [0003] Conductive gel is a new type of material with broad application prospects. It is not only an organic conductor, but also has a unique three-dimensional network structure and unique physical and chemical properties of gel materials, such as large surface area and high porosity. and structural controllability. However, most of the currently reported conductive gels use polyurethane as the basic material, and are formed by dopi...

Claims

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Application Information

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IPC IPC(8): C08J3/075C08L29/14C08L5/00C08L1/28C08L3/02C08L5/08
CPCC08J3/075C08J2329/14C08J2405/00C08J2401/28C08J2403/02C08J2405/08
Inventor 张俊花
Owner 广西荣达新材料有限公司
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