A composite processing method for soles

Through partition design and gradient pore structure sole processing methods, the shortcomings of traditional sole materials in wear resistance and cushioning are solved, and compressive strength improvement and dynamic self-repair are achieved to meet various functional needs.

CN120228797BActive Publication Date: 2025-08-12GOLD EMPEROR GRP
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Patent Information

Application Number
CN202510726242.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2025-08-12
Estimated Expiration
2045-06-03

AI Technical Summary

Technical Problem

It is difficult for traditional sole materials to have various excellent characteristics such as high wear resistance and lightweight cushioning, and traditional chemical foaming methods are difficult to accurately control the pore form, which affects the performance and service life of the sole.

Method used

Based on foot biomechanical data, the sole is divided into the foot arch support area, forefoot buffer area and heel wear-resistant area through a three-dimensional pressure distribution model. The gradient injection molding process of porous ceramic-polymer composite slurry is adopted, combined with supercritical carbon dioxide directional foaming and microwave sintering technology to form a gradient pore structure with bionic characteristics, and graphene oxide/carboxymethylcellulose aerogel and nanosilica enhancer are introduced to form a composite sole that has both wear resistance, flexible cushioning and breathability.

Benefits of technology

The compressive strength of the sole is improved, the collapse problem of traditional foaming materials is avoided, and the dynamic self-repair ability is equipped, the service life is extended, and the gradient pore structure is accurately matched to functional requirements, improving comfort and wear resistance.

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Abstract

The present invention relates to the field of sole processing technology, and specifically to a sole composite processing method, comprising: configuring a high-density slurry with a silicon nitride ceramic powder accounting for 30-40% according to the rigidity requirements of the arch support area, forming an #imgabs0# crystal phase by microwave-assisted sintering, and controlling the porosity at 10-20%; adding graphene oxide / carboxymethyl cellulose aerogel powder to the slurry to meet the energy rebound requirements of the forefoot buffer zone to 25%, and combining a honeycomb porous network design to increase the porosity to 40-60%; introducing a nano-silica reinforcing agent to 15% in the heel wear-resistant zone, and forming a diamond-like carbon coating by plasma surface treatment, with a porosity limit of 5-15%. The present invention uses polyurea microcapsules to encapsulate silane, which is released only when the material is damaged, achieving dynamic self-repair, giving the sole dynamic repair ability, and extending its service life.
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