A graphene-based conductive textile fabric and a method for preparing the same

By employing a multi-layered structure consisting of a composite polyurethane base film, a functionalized adhesive layer, and a modified graphene conductive layer, the conductivity, flexibility, and environmental stability issues of conductive textile materials in smart wearable devices and medical sensing fields have been resolved, resulting in multifunctional integrated and high-performance conductive textile fabrics.

CN120682520BActive Publication Date: 2026-04-28ZHAOQING YUELONG TEXTILE CO LTD
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Patent Information

Application Number
CN202510825636.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2026-04-28
Estimated Expiration
2045-06-19

AI Technical Summary

Technical Problem

Existing conductive textile materials have shortcomings in terms of performance and functional integration, making it difficult to balance conductivity, flexibility, environmental stability, and multifunctional integration. In particular, they have issues with biocompatibility and signal stability in the fields of smart wearable devices and medical sensing.

Method used

A multilayer structure consisting of a composite polyurethane base film, a functionalized adhesive layer, and a modified graphene conductive layer is adopted. A stable multilayer composite structure is formed by strengthening the composite polyurethane base film with stearic acid-modified nano-titanium dioxide, constructing a three-dimensional adhesive network with carboxylated nanowires, and building a core-shell cross-linked structure for the modified graphene conductive layer.

Benefits of technology

It achieves synergistic optimization of high conductivity, environmental resistance and mechanical flexibility in conductive textile fabrics, while maintaining softness and breathability. It is suitable for smart wearable devices, medical sensing clothing and electromagnetic shielding materials, and has significant industrialization value.

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Abstract

The application belongs to the technical field of conductive fabric, and relates to a graphene-based conductive textile fabric and a preparation method thereof. The fabric comprises a composite polyurethane-based film, a bonding layer and a modified graphene conductive layer which are stacked in sequence. The composite polyurethane-based film is obtained by mixing polyurethane particles, stearic acid modified nano titanium dioxide and a lubricant, and then sequentially performing melt extrusion and blow molding film forming. The bonding layer is formed by coating a composite adhesive on the surface of the composite polyurethane-based film, and then drying and curing. The modified graphene conductive layer is formed by coating a modified graphene dispersion liquid on the surface of the bonding layer, and then drying, curing and hot pressing. The modified graphene is obtained by sequentially performing acid activation, dopamine coating modification, glutaraldehyde cross-linking modification and polyaniline monomer polymerization coating modification on graphene powder. Through the multilayer composite structure of the composite polyurethane-based film, the functionalized bonding layer and the modified graphene conductive layer, the conductive textile fabric realizes the common optimization of high conductivity, environmental resistance and mechanical flexibility.
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