A photocurable 3D printed part and its application in foaming material
By using photocuring 3D printing with low crosslinking density and low glass transition temperature, and introducing reversible covalent bonds under high temperature and high pressure conditions, the problem of difficult foaming of existing photocuring 3D printing materials is solved, and high performance preparation of multi-scale porous foaming materials is achieved.
Patent Information
- Application Number
- CN202111433487.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-29
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2041-11-29
AI Technical Summary
The existing photocured 3D printing materials are difficult to use in the production of foamed materials due to their high cross-linking density and high glass transition temperature, and the interlayer bonding force is weak, which limits the mechanical properties of the materials.
Photocuring 3D printing is performed by using a photosensitive resin composition with a low crosslink density and a glass transition temperature below 30°C to form a polymer with a low crosslink density, and introduce reversible covalent bonds under high temperature and high pressure conditions to promote the dissolution and foaming of the high-pressure fluid.
The foamed materials that have achieved photocured 3D printing parts have good tensile properties, foaming properties, elasticity and surface smoothness, and the interlayer mechanical properties have been significantly improved, overcoming the shortcomings of traditional FDM-3D printing materials.