Additive manufacturing of embedded materials
US-10150258-B2 · Dec 11, 2018 · US
Scaffold composite, and preparation method and use thereof
US2026077107A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2026077107-A1 |
| Application number | US-202519230548-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 6, 2025 |
| Priority date | Sep 19, 2024 |
| Publication date | Mar 19, 2026 |
| Grant date | — |
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Abstract
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A scaffold composite, and a preparation method and use thereof are provided. The preparation method includes: mixing a graphene oxide (GO) dispersion and a polylactic acid (PLA) dispersion, and subjecting a resulting mixed solution to curing and melt extrusion in sequence to obtain a 3-dimensional (3D)-printable GO/PLA composite wire; subjecting the 3D-printable GO/PLA composite wire to 3D printing to obtain a scaffold; and annealing the scaffold to obtain the scaffold composite.
First claim
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1 . A method for preparing a scaffold composite, comprising: mixing a graphene oxide (GO) dispersion and a polylactic acid (PLA) dispersion, and subjecting a resulting mixed dispersion to curing and melt extrusion in sequence to obtain a 3-dimensional (3D)-printable GO/PLA composite wire; subjecting the 3D-printable GO/PLA composite wire to 3D printing to obtain a scaffold; and annealing the scaffold to obtain the scaffold composite; wherein the annealing is conducted in an oven; and the annealing is conducted at an oven temperature of 120° C. for 2 h. 2 . The method of claim 1 , wherein a solvent in the GO dispersion and a solvent in the PLA dispersion comprise independently one or more selected from the group consisting of difluoromethane, fluorobenzene, N,N-dimethylacetamide (DMAc), and N,N-dimethylformamide (DMF). 3 . The method of claim 1 , wherein the mixing is conducted under stirring at a temperature of 28° C. to 35° C. for 40 minutes to 80 minutes; and the PLA dispersion is prepared by mixing PLA with an organic solvent at a temperature of 28° C. to 35° C. for 90 minutes to 180 minutes. 4 . The method of claim 1 , wherein the curing is conducted by vacuum drying; and the vacuum drying is conducted at a temperature of 50° C. to 70° C. for 24 hours. 5 . The method of claim 1 , wherein the melt extrusion is conducted at a die temperature of 190° C. to 210° C. and a screw speed of 12 rotations/minute (r/min) to 17 r/min. 6 . The method of claim 1 , wherein a mass ratio of GO to PLA in the 3D-printable GO/PLA composite wire is in a range of 0.001:1 to 0.0025:1. 7 . (canceled) 8 . A scaffold composite prepared by the method of claim 1 . 9 . The scaffold composite of claim 8 , wherein a solvent in the GO dispersion and a solvent in the PLA dispersion comprise independently one or more selected from the group consisting of difluoromethane, fluorobenzene, N,N-dimethylacetamide (DMAc), and N,N-dimethylformamide (DMF). 10 . The scaffold composite of claim 8 , wherein the mixing is conducted under stirring at a temperature of 28° C. to 35° C. for 40 minutes to 80 minutes; and the PLA dispersion is prepared by mixing PLA with an organic solvent at a temperature of 28° C. to 35° C. for 90 minutes to 180 minutes. 11 . The scaffold composite of claim 8 , wherein the curing is conducted by vacuum drying; and the vacuum drying is conducted at a temperature of 50° C. to 70° C. for 24 hours. 12 . The scaffold composite of claim 8 , wherein the melt extrusion is conducted at a die temperature of 190° C. to 210° C. and a screw speed of 12 rotations/minute (r/min) to 17 r/min. 13 . The scaffold composite of claim 8 , wherein a mass ratio of GO to PLA in the 3D-printable GO/PLA composite wire is in a range of 0.001:1 to 0.0025:1. 14 . (canceled)
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Classifications
Processes of additive manufacturing · CPC title
Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials · CPC title
Products made by additive manufacturing · CPC title
Materials specially adapted for additive manufacturing · CPC title
Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces · CPC title
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- What does patent US2026077107A1 cover?
- A scaffold composite, and a preparation method and use thereof are provided. The preparation method includes: mixing a graphene oxide (GO) dispersion and a polylactic acid (PLA) dispersion, and subjecting a resulting mixed solution to curing and melt extrusion in sequence to obtain a 3-dimensional (3D)-printable GO/PLA composite wire; subjecting the 3D-printable GO/PLA composite wire to 3D prin…
- Who is the assignee on this patent?
- Univ Kunming Science & Technology
- What technology area does this patent fall under?
- Primary CPC classification A61L27/443. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Mar 19 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).