一种聚酯组合物及其制备方法和应用
By controlling the Z-average molecular weight, D-lactic acid unit content, and mineral filler particle size in the polyester composition, the problem of insufficient puncture resistance and longitudinal and transverse tear resistance of biodegradable films with high mineral filler content was solved, and high-performance film applications were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KINGFA SCI & TECH CO LTD
- Filing Date
- 2024-10-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing biodegradable films have insufficient puncture resistance and tear resistance when the mineral filler content is high, which limits their application in scenarios where they carry sharp objects.
A polyester composition was prepared by controlling the Z-average molecular weight of biodegradable polyester, the D-lactic acid unit content of polylactic acid, and the particle size of mineral fillers, ensuring that it has good puncture strength, longitudinal tear strength, and transverse tear strength even with high mineral filler content.
It achieves good puncture strength, longitudinal tear strength, and transverse tear strength in biodegradable films with high mineral filler content, and is suitable for films of different thicknesses, thus improving the overall performance of the films.
Smart Images
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