PLA / PBAT composite material and preparation method and application thereof
By introducing modified Zn-MOF into PLA/PBAT composites, the problem of poor compatibility of composites during processing is solved, the mechanical properties and flexibility are improved, and antibacterial properties are imparted, achieving excellent mechanical properties and antibacterial effects.
Patent Information
- Application Number
- CN202411892298.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-03-28
AI Technical Summary
The existing PLA/PBAT composites have compatibility problems during processing, resulting in crystal points and excessive crosslinking of the products, affecting performance. At the same time, the hydrophobicity of PBAT makes the surface of the products easily adhered to by bacteria and microorganisms, which has hygiene and health and safety problems.
Zn-MOF is combined with PLA and PBAT, and Zn-MOF is modified by silane coupling agent to improve its compatibility with PBAT and PLA, achieve chemical capacity enhancement, and impart antibacterial properties to the composite material through the bactericidal effect of zinc ions.
The mechanical properties and flexibility of PLA/PBAT composite materials are improved, the antibacterial effect is enhanced, and the antibacterial rate reaches ≥10%, and in the case of ≥70%, while avoiding excessive cross-linking and crystal point phenomena of the product during processing.