A liquid crystal elastomer ink for 3D printing and its preparation method
By developing a two-component liquid crystal elastomer ink preparation method, the problem of adjusting the mechanical properties of liquid crystal elastomer ink in 3D printing has been solved, enabling flexible control of material properties and improving printing efficiency.
CN119613594BActive Publication Date: 2026-06-30BEIHANG UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIHANG UNIV
- Filing Date
- 2024-12-06
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Existing liquid crystal elastomer inks have difficulty in adjusting material mechanical properties during 3D printing, and the preparation cycle is long, affecting printing efficiency.
Method used
Using a two-component liquid crystal elastomer ink, the proportions of acrylate liquid crystal monomers, chain extenders, catalysts, and photoinitiators are adjusted, and no solvent is used in the preparation process, allowing it to be directly used for extrusion 3D printing.
Benefits of technology
This technology extends the shelf life of liquid crystal elastomer inks, allows for adjustable material mechanical properties, simplifies the 3D printing process, and improves printing efficiency and material performance flexibility.
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Smart Images
Figure CN119613594B_ABST
Abstract
This invention relates to a liquid crystal elastomer ink for 3D printing and its preparation method, belonging to the field of polymer materials technology, and solves the problem of difficulty in adjusting the mechanical properties of materials in existing technologies. The liquid crystal elastomer raw materials used in the 3D printing liquid crystal elastomer ink of this invention include a liquid crystal oligomer component A and a component B; wherein, acrylate monomers, chain extenders, and catalysts constitute the liquid crystal oligomer component A; and the chain extender and photoinitiator constitute component B. The liquid crystal elastomer ink of this invention is solvent-free, greatly extending its shelf life; furthermore, by preparing the raw materials as a two-component mixture, the A and B components can be simply mixed and used for extrusion 3D printing. The modulus and actuation strain of the printed sample can be controlled by adjusting the ratio of the A and B components. The operation is simple and highly controllable.
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