Multi-layer composite shielding PVC wire harness adhesive tape and preparation method thereof

Through the multi-layer composite structure PVC wire harness tape, the MXene nanosheets and silver nanowire orientation arrangement and aerogel buffer layer are used, combined with the self-healing enhancement layer, the large weight and vulnerability caused by traditional metal shielding are solved, and the efficient electromagnetic shielding and self-healing functions are achieved, which are suitable for extreme environments.

CN120519097APending Publication Date: 2025-08-22WANZHOU ADHESIVE PROD JIANGSU CO LTD
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Patent Information

Application Number
CN202510615326.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2025-08-22

AI Technical Summary

Technical Problem

Traditional metal shielded PVC wire harness tape leads to high weight, high cost and easy damage to the wiring harness. The existing PVC wire harness tape performs unstable in extreme environments.

Method used

A multi-layer composite structure of the electromagnetic shielding layer, aerogel buffer layer, self-healing enhancement layer and photosensitive response layer arranged in a directional arrangement of MXene nanosheets and silver nanowires is adopted, and combined with a dynamic acyl bond crosslinking network, an efficient electromagnetic shielding, flexible protection and self-healing function is formed.

Benefits of technology

It realizes lightweight and efficient electromagnetic shielding, which improves stability and service life in extreme environments, reduces maintenance costs, and improves electrical performance and response speed.

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Abstract

The invention discloses a multi-layer composite shielding PVC wire harness adhesive tape and a preparation method thereof, and relates to the technical field of PVC wire harness adhesive tape, the multi-layer composite shielding PVC wire harness adhesive tape comprises a base material layer, an adhesive layer and a stripping layer, the upper end of the base material layer is provided with a directional electromagnetic shielding layer, the upper end of the directional electromagnetic shielding layer is provided with an aerogel buffer layer, and the upper end of the aerogel buffer layer is provided with an adhesive layer. The directional electromagnetic shielding layer is formed by compounding MXene nanosheets and silver nanowires according to the mass ratio of (1: 0.3)-(1: 1). Polyimide fibers are embedded into pores of the silicon dioxide aerogel in a three-dimensional network structure, so that high buffering property and heat insulation property are realized, the problems that polyurethane foam is poor in heat insulation property and is easy to soften and lose efficacy in a high-temperature environment are solved, and the polyurethane foam is favorably used in an extreme environment and keeps certain stability.
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