A method for preparing a gradient porous foam structure

CN119261191BActive Publication Date: 2026-05-26GUANGDONG UNIV OF TECH
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Filing Date
2024-09-06
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing preparation methods cannot achieve gradient porous foam structures with different porosities and pore sizes, and cannot meet the customized requirements of multi-level pore structures, gradient pore sizes, and regular/irregular pore geometry.

Method used

A porous structure is formed in the printed layer by using optical curing and/or acoustic cavitation. A continuous porous structure is formed by printing layer by layer. The porosity and pore size are controlled by combining the beam path and acoustic parameters to realize the preparation of a gradient porous foam structure.

Benefits of technology

The continuous molding of gradient porous foam structures has been achieved, which has the advantages of simple operation, high molding efficiency, high precision and low cost. It can prepare complex microstructures with multi-level pore size, multi-level porosity, gradient pore size and gradient porosity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119261191B_ABST
    Figure CN119261191B_ABST
Patent Text Reader

Abstract

This invention discloses a method for preparing a gradient porous foam structure, comprising: setting a printing layer, wherein the printing layer is covered with a liquid molding material, the molding material being an acousto-photosensitive material, including a thermosetting resin and a photosensitizer; forming a pore structure in the printing layer through photocuring and / or acoustic cavitation; sequentially setting consecutive printing layers to form a continuous pore structure, and several printing layers forming a gradient porous foam structure. This application utilizes photocuring and / or acoustic cavitation to form a gradient porous foam structure in the printing layer, exhibiting multi-level pore sizes, multi-level porosities, gradient pore sizes, gradient porosities, and combinations of ordered and disordered pores. This allows for continuous spatial molding without assembly, offering advantages such as simple operation, high molding efficiency, and high molding precision.
Need to check novelty before this filing date? Find Prior Art