A bio-based polyhydroxyalkanoate pressure sensitive adhesive as well as a preparation method and application thereof
By modifying the side chains of polyhydroxyalkanoates, a bio-based polyhydroxyalkanoate pressure-sensitive adhesive was prepared, which solved the environmental protection and adhesion problems of existing pressure-sensitive adhesives, expanded the application range, met the comprehensive performance requirements of adhesion and cohesion, and met the needs of sustainable development.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING UNIV
- Filing Date
- 2026-02-11
- Publication Date
- 2026-05-29
AI Technical Summary
Existing pressure-sensitive adhesives are mainly derived from petrochemical resources, which have problems such as non-renewability, high carbon emissions, and non-degradability. Furthermore, polyhydroxyalkanoates, as thermoplastic polymers, lack viscoelastic balance and surface adhesion, making them difficult to directly apply to the preparation of pressure-sensitive adhesives.
By modifying the side chains of polyhydroxy fatty acid esters and introducing carboxyl groups or carboxyl groups and vinyl groups to form coordination bonds or free radical polymerization crosslinking, bio-based polyhydroxy fatty acid ester pressure-sensitive adhesives can be prepared, improving adhesion and cohesion.
It broadens the sources of materials, improves adhesion and cohesion, meets the comprehensive performance requirements of pressure-sensitive adhesives, is environmentally friendly and sustainable, and is suitable for labels, medical patches and electronic devices.
Smart Images
Figure CN122104118A_ABST