一种含硫多功能聚乳酸材料及其制备方法
By polymerizing elemental sulfur with enols and lactide through a reverse sulfurization reaction, polylactic acid (PLA) materials with UV shielding and self-healing properties are synthesized, solving the problems of brittleness and UV sensitivity of PLA materials and enabling wider applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHWEST NORMAL UNIVERSITY
- Filing Date
- 2023-09-25
- Publication Date
- 2026-07-17
AI Technical Summary
Polylactic acid (PLA) materials are brittle, have low ductility, are sensitive to ultraviolet light, and their hydrophobicity leads to biofouling, which limits their use in various applications.
Polylactic acid (PLA) materials with UV shielding, self-healing, and antibacterial properties are synthesized by polymerizing elemental sulfur with enols and lactide through a reverse sulfurization reaction. The dynamic SS bonds of sulfur absorb ultraviolet light and endow the material with self-healing properties. Enols and stannous octoate catalyst are added for polymerization.
It improves the UV shielding and self-healing properties of polylactic acid materials, enhances their antibacterial properties, and expands their application in packaging materials and other fields.
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