Volume 142, Issue 18 e56812
RESEARCH ARTICLE

Effect of Curcumin Cross-Linked Epoxy Soybean Oil on Mechanical Properties and UV Resistance of Polylactic Acid

Zixuan Zou

Zixuan Zou

College of Materials Science and Engineering, Hubei Provincial Engineering Research Center of Industrial Fiber Preparation and Application, Wuhan Textile University, Wuhan, Hubei, China

Contribution: Data curation (lead), ​Investigation (lead), Writing - original draft (lead)

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Xuejing Wei

Xuejing Wei

College of Materials Science and Engineering, Hubei Provincial Engineering Research Center of Industrial Fiber Preparation and Application, Wuhan Textile University, Wuhan, Hubei, China

Contribution: ​Investigation (supporting), Methodology (supporting)

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Jiayi Yao

Jiayi Yao

College of Materials Science and Engineering, Hubei Provincial Engineering Research Center of Industrial Fiber Preparation and Application, Wuhan Textile University, Wuhan, Hubei, China

Contribution: ​Investigation (supporting), Methodology (supporting)

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Li Sun

Li Sun

College of Materials Science and Engineering, Hubei Provincial Engineering Research Center of Industrial Fiber Preparation and Application, Wuhan Textile University, Wuhan, Hubei, China

Contribution: ​Investigation (supporting), Methodology (supporting)

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Hua Wang

Hua Wang

College of Materials Science and Engineering, Hubei Provincial Engineering Research Center of Industrial Fiber Preparation and Application, Wuhan Textile University, Wuhan, Hubei, China

Contribution: Conceptualization (supporting), Funding acquisition (supporting), Project administration (supporting), Visualization (supporting), Writing - review & editing (supporting)

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Shaohua Chen

Corresponding Author

Shaohua Chen

College of Materials Science and Engineering, Hubei Provincial Engineering Research Center of Industrial Fiber Preparation and Application, Wuhan Textile University, Wuhan, Hubei, China

Correspondence:

Shaohua Chen ([email protected])

Luoxin Wang ([email protected])

Contribution: Conceptualization (lead), Funding acquisition (lead), Project administration (lead), Visualization (lead), Writing - review & editing (lead)

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Luoxin Wang

Corresponding Author

Luoxin Wang

College of Materials Science and Engineering, Hubei Provincial Engineering Research Center of Industrial Fiber Preparation and Application, Wuhan Textile University, Wuhan, Hubei, China

Correspondence:

Shaohua Chen ([email protected])

Luoxin Wang ([email protected])

Contribution: Formal analysis (equal), Project administration (equal), Resources (equal), Visualization (equal)

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First published: 20 February 2025

Funding: This study was supported by the Hubei Provincial Department of Education key project, D20221706.

ABSTRACT

In order to improve the mechanical properties and UV resistance of polylactic acid (PLA) composites, a bio-based additive (ESO-CUR) was synthesized by one-pot method. A new environment-friendly toughening agent was synthesized by using epoxy soybean oil (ESO) as the core material and curcumin (CUR) as the curing agent. PLA composite material with toughening and UV resistance was prepared by melt blending process. Among them, the elongation at break of 6%ESO-CUR/PLA reached 20.26% in the tensile test, which was 11.8 times higher than that of pure PLA. In addition, 6%ESO-CUR/PLA has excellent UV resistance, and the UV protection factor (UPF) is increased from 3.1 to 15,485 of pure PLA. The results show that the new environmental protection toughening agent has a significant synergistic effect on improving the mechanical properties and UV protection properties of PLA. In order to reduce the white pollution caused by traditional plastics, it provides a new way to prepare biodegradable materials with excellent properties.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

Data will be made available on request.

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