一种用于3D打印的阻燃型生物基TPU及其制备方法
By preparing a TPU material containing ozonated palm oil-based polyols and vegetable oils, and adding dianhydride chain extenders and phenoxycyclophosphamide, the flammability problem of polyurethane materials in 3D printing was solved, achieving improved high flame retardancy and mechanical properties, making it suitable for various application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG LEAD CHEM CO LTD
- Filing Date
- 2023-07-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing polyurethane materials are flammable in 3D printing. Adding flame retardants reduces their mechanical properties and thermal stability, making them unsuitable for 3D printing requirements.
TPU was prepared by compounding ozonated palm oil-based polyol with vegetable oil and reacting it with diisocyanate. Diacid anhydride chain extenders and phenoxycyclophosphamide were added to form a network structure and hydrogen bond crosslinking, thereby improving the mechanical properties and flame retardant properties of the material.
The prepared flame-retardant bio-based TPU material exhibits excellent mechanical properties, thermal stability, and flame-retardant properties during 3D printing, preventing material fracture and improving melt strength and flowability. It is suitable for applications such as medical devices, coatings, parts, and tires.
Smart Images
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