Nano-composite silver particle material preparation device using elastin-like polypeptide

By employing a dual-stirring shaft design and sensor monitoring, combined with nano-ceramic coating and ultraviolet irradiation, the problems of uneven mixing and low purity in the preparation of silver nanoparticles were solved, achieving efficient and stable generation of nano-silver.

CN224541725UActive Publication Date: 2026-07-24SUZHOU POLYTECHNIC INST OF AGRI
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Patent Information

Application Number
CN202520932946.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-07-24
Estimated Expiration
2035-05-13

AI Technical Summary

Technical Problem

Traditional methods for preparing silver nanoparticles suffer from problems such as low product purity, wide particle size distribution, and easy agglomeration. Furthermore, conventional stirring devices often result in uneven mixing and low mass transfer efficiency when processing high-viscosity elastin solutions.

Method used

It adopts a dual-shaft design with opposite stirring shafts and frame-type and turbulent stirring blades. Combined with an asymmetric speed ratio, it forms three-dimensional turbulence. It is equipped with a pH sensor, a temperature sensor and a flow sensor. The inner wall of the reactor is coated with a nano-ceramic coating and irradiated with ultraviolet light.

Benefits of technology

This method achieves efficient and uniform mixing, improves the generation efficiency and quality of silver nanoparticles, enhances the controllability of the reaction, reduces cross-contamination, and improves the purity and stability of the product.

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Abstract

The utility model discloses a device for preparing a nano-composite silver particle material by using elastin-like polypeptide, which comprises a reaction kettle, a stirring shaft in the reaction kettle is provided with double stirring shafts, and the two stirring shafts rotate oppositely and adopt an asymmetric rotation speed ratio; a strong shearing vertical field and convection can be formed, the laminar flow state of a high-viscosity elastin solution can be broken, three-dimensional turbulent flow is formed, and an efficient and uniform mixing effect is achieved; rapid and sufficient contact and reaction of reactants are facilitated, and the generation efficiency and quality of the nano-silver particles are improved; a pH sensor, a temperature sensor, a flow sensor and the like are arranged, key parameters in the reaction process can be monitored in real time, and a heater is arranged; in the stirring process, the internal environment index is detected, and compared with the prior art, the controllability of the reaction is improved.
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