Synergistically enhanced toughness and water vapour barrier performance of polylactic acid by graphene oxide/acetylated lignin composite

Xiaobao Li; Hang Yu; Jingyuan Ding; Liming Shen; Xuejuan Zhao

doi:10.1016/j.matlet.2022.131829

Synergistically enhanced toughness and water vapour barrier performance of polylactic acid by graphene oxide/acetylated lignin composite

Xiaobao Li, Hang Yu, Jingyuan Ding, Liming Shen, Xuejuan Zhao

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Polylactic acid (PLA)/graphene oxide (GO)/acetylated lignin (ACL) composite films were prepared by the solution blending method, and the effects of GO, ACL and GO/ACL on the toughness and barrier performance of PLA were investigated. Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy demonstrated that hydrogen bonds were formed between the carboxyl group on GO and the hydroxyl group on ACL. Particle size analysis revealed that the addition of ACL was able to effectively improve the dispersion of GO in organic solvents, and the average particle size of GO was reduced from 4259 nm to 1734 nm. Compared with GO and ACL, GO/ACL results in greater improvement of the toughness and water vapour barrier properties of PLA, along with a 197% increase in the elongation at break and 26% increase in the water vapour barrier of PLA. Therefore, GO/ACL imparted excellent synergistic toughness and good barrier performance to PLA.

Original language	English
Article number	131829
Journal	Materials Letters
Volume	313
DOIs	https://doi.org/10.1016/j.matlet.2022.131829
State	Published - 15 Apr 2022

Keywords

Biomaterials
Carbon Materials
Composite Materials

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10.1016/j.matlet.2022.131829

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title = "Synergistically enhanced toughness and water vapour barrier performance of polylactic acid by graphene oxide/acetylated lignin composite",

abstract = "Polylactic acid (PLA)/graphene oxide (GO)/acetylated lignin (ACL) composite films were prepared by the solution blending method, and the effects of GO, ACL and GO/ACL on the toughness and barrier performance of PLA were investigated. Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy demonstrated that hydrogen bonds were formed between the carboxyl group on GO and the hydroxyl group on ACL. Particle size analysis revealed that the addition of ACL was able to effectively improve the dispersion of GO in organic solvents, and the average particle size of GO was reduced from 4259 nm to 1734 nm. Compared with GO and ACL, GO/ACL results in greater improvement of the toughness and water vapour barrier properties of PLA, along with a 197% increase in the elongation at break and 26% increase in the water vapour barrier of PLA. Therefore, GO/ACL imparted excellent synergistic toughness and good barrier performance to PLA.",

keywords = "Biomaterials, Carbon Materials, Composite Materials",

author = "Xiaobao Li and Hang Yu and Jingyuan Ding and Liming Shen and Xuejuan Zhao",

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doi = "10.1016/j.matlet.2022.131829",

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T1 - Synergistically enhanced toughness and water vapour barrier performance of polylactic acid by graphene oxide/acetylated lignin composite

AU - Li, Xiaobao

AU - Yu, Hang

AU - Ding, Jingyuan

AU - Shen, Liming

AU - Zhao, Xuejuan

PY - 2022/4/15

Y1 - 2022/4/15

N2 - Polylactic acid (PLA)/graphene oxide (GO)/acetylated lignin (ACL) composite films were prepared by the solution blending method, and the effects of GO, ACL and GO/ACL on the toughness and barrier performance of PLA were investigated. Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy demonstrated that hydrogen bonds were formed between the carboxyl group on GO and the hydroxyl group on ACL. Particle size analysis revealed that the addition of ACL was able to effectively improve the dispersion of GO in organic solvents, and the average particle size of GO was reduced from 4259 nm to 1734 nm. Compared with GO and ACL, GO/ACL results in greater improvement of the toughness and water vapour barrier properties of PLA, along with a 197% increase in the elongation at break and 26% increase in the water vapour barrier of PLA. Therefore, GO/ACL imparted excellent synergistic toughness and good barrier performance to PLA.

AB - Polylactic acid (PLA)/graphene oxide (GO)/acetylated lignin (ACL) composite films were prepared by the solution blending method, and the effects of GO, ACL and GO/ACL on the toughness and barrier performance of PLA were investigated. Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy demonstrated that hydrogen bonds were formed between the carboxyl group on GO and the hydroxyl group on ACL. Particle size analysis revealed that the addition of ACL was able to effectively improve the dispersion of GO in organic solvents, and the average particle size of GO was reduced from 4259 nm to 1734 nm. Compared with GO and ACL, GO/ACL results in greater improvement of the toughness and water vapour barrier properties of PLA, along with a 197% increase in the elongation at break and 26% increase in the water vapour barrier of PLA. Therefore, GO/ACL imparted excellent synergistic toughness and good barrier performance to PLA.

KW - Biomaterials

KW - Carbon Materials

KW - Composite Materials

UR - http://www.scopus.com/inward/record.url?scp=85123891294&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2022.131829

DO - 10.1016/j.matlet.2022.131829

M3 - 文章

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SN - 0167-577X

VL - 313

JO - Materials Letters

JF - Materials Letters

M1 - 131829

ER -

Synergistically enhanced toughness and water vapour barrier performance of polylactic acid by graphene oxide/acetylated lignin composite

Abstract

Keywords

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