Suspended microstructure based on rapid water-soluble support material and preparation method thereof

By mixing PVA solution with hydrophilic colloid and optimizing the mass ratio, the problem of slow dissolution rate of PVA water-soluble support material was solved, and rapid, complete water-soluble and high-precision printing of suspended microstructures was achieved, improving the forming capability of extrusion direct writing 3D printing.

CN120756097APending Publication Date: 2025-10-10HUAZHONG UNIV OF SCI & TECH
0 Cites 0 Cited by

Patent Information

Application Number
CN202510746411.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-05
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

Existing PVA water-soluble support materials have a slow and incomplete dissolution rate and are not suitable for extrusion direct writing 3D printing, resulting in insufficient printing accuracy and forming capabilities.

Method used

A PVA solution mixed with a hydrophilic colloid was used as a fast water-soluble support material. The mass ratio of the hydrophilic colloid to PVA was optimized, and appropriate extrusion direct writing 3D printing parameters were combined to prepare a fast and completely water-soluble support structure.

Benefits of technology

The forming accuracy and forming ability of extrusion direct writing 3D printing are improved, ensuring that the support structure dissolves quickly and completely at room temperature without toxicity, thereby enhancing the printing quality of suspended microstructures.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention belongs to the field of 3D printing, and particularly discloses a suspended microstructure based on a rapid water-soluble supporting material and a preparation method thereof.The preparation method specifically comprises the steps that a PVA solution and hydrophilic colloid are mixed to obtain the rapid water-soluble supporting material, and the mass ratio of the hydrophilic colloid to PVA solute in the rapid water-soluble supporting material is (150-400): (1-5); respectively finishing extrusion direct-writing 3D printing of the water-soluble supporting structure and the suspended microstructure by using the rapid water-soluble supporting material and the main body material; and the obtained printed piece is dried and cured, and then the water-soluble supporting structure is removed in a water-soluble treatment mode to obtain the suspended microstructure. According to the preparation method, the water-soluble supporting structure which is excellent in mechanical property, rapid and completely soluble in water can be prepared, meanwhile, the curing speed of the rapid water-soluble supporting material after extrusion is high, and the extrusion direct-writing 3D printing forming precision and forming capacity are effectively improved.
Need to check novelty before this filing date? Find Prior Art