3D printing polymer composite material capable of continuously releasing negative ions and preparation method

By utilizing the dense inner shell and porous outer shell structure of gradient-shell microcapsule tourmaline, the problem of poor interfacial compatibility between inorganic fillers and polymer matrix is ​​solved, achieving long-term stable release of negative ions and improving the mechanical properties of the material.

CN121362425APending Publication Date: 2026-01-20GUANGZHOU HIGHTEEN PLASTICS CO LTD
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Patent Information

Application Number
CN202511904758.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-01-20

AI Technical Summary

Technical Problem

In existing 3D printed composite materials that can sustainably release negative ions, the inorganic filler has poor compatibility with the polymer matrix interface, which prevents the active sites from being exposed and makes it difficult to achieve long-term and stable negative ion release.

Method used

The gradient shell type microcapsule tourmaline is used to form a dense inner shell and a porous outer shell structure through interfacial polymerization, which, combined with a polymer matrix, achieves the slow release of negative ions.

Benefits of technology

The dense inner shell of gradient-shell microcapsule tourmaline buffers the release rate, while the porous outer shell activates water vapor infiltration, ensuring long-term stable release and improving the mechanical properties and interfacial compatibility of the composite material.

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Abstract

The invention relates to the technical field of 3D printing materials, in particular to a 3D printing polymer composite material capable of continuously releasing negative ions and a preparation method, and the 3D printing polymer composite material comprises the following raw materials: a polymer matrix, gradient shell type microcapsule tourmaline, zinc stearate, thermoplastic polyurethane and tris [2, 4-di-tert-butylphenyl] phosphite. According to the gradient shell layer type microcapsule tourmaline, the dense polyurea / polyurethane inner shell of the gradient shell layer type microcapsule tourmaline can effectively buffer and delay the release rate of negative ions of the tourmaline core, explosive release in the initial stage is avoided, and a long-acting and stable foundation is laid; meanwhile, the shell is of a porous network structure formed by a hydrophilic zwitterionic polymer through phase separation, it is ensured that water vapor in the environment can continuously permeate and activate internal tourmaline, active sites are indirectly exposed for a long time and play a role, and the inactivation problem caused by embedding is solved.
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