Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 159, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.indcrop.2020.113068
Keywords
Poly (lactic acid); Tannin acetate; Peroxide; Reactive extrusion; Bio-composite
Categories
Funding
- National Natural Science Foundation of China [NSFC 31971595, 31760187]
- Program for Leading Talents of Science and Technology [2017HA013]
- Yunnan Provincial Youth and Yunnan Provincial Reserve Talents for Middle & Young Academic and Technical Leaders [2019HB026]
- French National Research Agency through the Laboratory of Excellence ARBRE [ANR-12-LABXARBRE-01]
- China Scholarship Council
Ask authors/readers for more resources
Bio-composites based on tannin acetate and polylactic acid (PLA) were successfully prepared with improved molecular weight, Young's modulus, and tensile strength, showing strong interfacial adhesion. Enhanced thermal stability and crystallinity were observed, along with a more hydrophobic characteristic suitable for food packaging applications.
A wholly bio-composite based on poly (lactic acid) (PLA) and tannin acetate was successfully prepared via in situ reactive extrusion using dicumyl peroxide (DCP) to improve interfacial adhesion. The composites based on PLA and tannin acetate with high acetylation degree exhibited increased molecular weight as compared with reactive extruded PLA, together with the improvement of Young's modulus and tensile strength. The rheology results showed that reactive extruded PLA/tannin acetate composites exhibited increased complex viscosity and modulus storage, indicating the strong interfacial adhesion of PLA and tannin acetate. Besides, Glass transition temperature, thermal stability, and crystallinity degree were all enhanced as a result of better interaction by radical initiated polymerization. From contact angle data, free radical extruded composites had a more hydrophobic characteristic compared with PLA, which might be interesting for food packaging application. This approach opens up a pathway to diversify the applications of tannin as a component for bio-composite preparation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available