PMP polymer breathable film and preparation method thereof

By recombining PES particles with GO dispersion, combining bionic phospholipids and sodium alginate, electrospinning and photolithography technology, a PMP polymer breathable membrane with multi-stage communication channels and cross-linking network structure was prepared, solving the problems of insufficient breathability, mechanical strength and biocompatibility in the prior art, and achieving high-efficiency gas exchange and long-term stability.

CN120425514AActive Publication Date: 2025-08-05NANJING TECH UNIV +1
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Patent Information

Application Number
CN202510573303.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2025-08-05
Estimated Expiration
2045-05-06

AI Technical Summary

Technical Problem

The existing PMP polymer breathable membranes have shortcomings in breathability, mechanical strength, biocompatibility and controllability of the preparation process, and it is difficult to meet the needs of efficient gas exchange and long-term stability for artificial lung and hemodialysis.

Method used

Radio frequency plasma activated PES particles are used to compound with GO dispersion, combine bionic phospholipids and sodium alginate, and through electrospinning and photolithography, a multi-stage communication channel and cross-linking network structure is formed, which optimizes the gas diffusion path and enhances mechanical strength and reduces biological risks.

Benefits of technology

It significantly improves breathability and mechanical strength, reduces platelet adhesion, ensures the long-term stability of the membrane and gas/liquid exchange efficiency, and solves the problems of uneven pore distribution, low mechanical strength and poor biocompatibility of traditional membranes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a PMP polymer breathable film and a preparation method thereof. The preparation method specifically comprises the following steps: step 1, PES particle activation; 2, preparing a GO dispersion liquid and a polymer solution; 3, mixing the activated PES particles with a GO dispersion liquid and a polymer solution in sequence for modification; 4, preparing a spinning solution; 5, spinning to form a film; step 6, carrying out ultraviolet lithography; 7, sterilizing after a potential regulator and irradiation; through material compounding, gradient pore-foaming agent design, bionic modification and multi-process cooperation (plasma treatment, ultraviolet crosslinking and micro-channel photoetching), the air permeability, the mechanical strength, the biocompatibility and the structural controllability are obviously superior to those in the prior art. The innovation point of the composite membrane is that efficient gas exchange, long-term stability and low biological risk can be realized by directly aiming at the defects of the traditional PMP membrane, especially in the fields of artificial lung and hemodialysis.
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Citation Information

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