Starch-based bionic impact-resistant gel as well as preparation method and application thereof

By preparing a starch-based hydrogel with a hard outer and soft inner structure, the shortcomings of existing protective materials in terms of impact resistance and flexible energy dissipation are solved, realizing the integration of efficient protection and sensing functions, which is suitable for soft robots and human-computer interaction.

CN121108429APending Publication Date: 2025-12-12TONGJI UNIV
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Patent Information

Application Number
CN202511251939.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-03
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing protective materials cannot simultaneously achieve high impact resistance and flexible energy dissipation, and lack sensing capabilities, thus failing to effectively protect the human body from impact injuries.

Method used

A biomimetic strategy was adopted to prepare a starch-based hydrogel with a hard outer and soft inner structure. The starch particles were modified by a silane coupling agent and combined with ionic liquid and gelling components to form a biomimetic impact-resistant gel with a distinct layered structure, which endowed it with high conductivity and sensing sensitivity.

Benefits of technology

It achieves an effective combination of rigid and flexible materials, possesses high impact resistance and energy absorption capacity, can coordinate monitoring and protection to protect the human body from injury, and has excellent sensing performance and stability.

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Abstract

The invention relates to a bionic impact-resistant gel based on starch as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a silane grafted modified starch solution with an ionic solution and a gelling component, performing layering treatment, and performing gelling reaction, thereby obtaining the bionic impact-resistant gel. Compared with the prior art, the preparation process is simple and efficient, materials are cheap and easy to obtain, the prepared gel with the bionic structure has obvious mechanical property difference, dynamic impact loads can be resisted through the outer hard phase, good energy dissipation capacity is provided through the inner soft phase, and therefore blunt damage to the human body is reduced, and the gel is suitable for popularization and application. The gel has excellent impact resistance and buffering effect, has good sensing performance, can be assembled into a skin protection device, and has important significance in the fields of soft armor, man-machine interaction and wearable monitoring equipment.
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Citation Information

Patent Citations

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