Water Resistance of Chitosan–Dopamine–Montmorillonite Film Added with LNP 


Vol. 25,  No. 10, pp. 3649-3659, Oct.  2024
10.1007/s12221-024-00687-1


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  Abstract

Biobased flms have attracted much attention of researchers due to the advantages of biodegradability and biocompatibility. Chitosan–dopamine–montmorillonite composite flms were prepared using genipin as a cross-linking agent, based on a biomimetic strategy through the “brick–mortar”structure design. Lignin nanoparticles (LNP) were used to construct ef cient surface structures to enhance the water contact angles, as revealed by the AFM images. SEM images showed that the chitosan, montmorillonite and dopamine formed a homogeneous flm. XRD curves indicated that the addition of genipin caused the rearrangement of chitosan and montmorillonite molecules. The water resistance of the obtained composite flms added with genipin cross-linked dopamine was signifcantly enhanced. The resultant flm could maintain intact shape in the acidic and alkaline solutions (pH=2, 4.5, 9 and 11), and the addition of 1.11% LNP obviously enhanced the water contact angle values, which could be above 100° in 60 s. The appropriate dosage of LNP improved the strength performance, while the dosage of LNP on the transmittance and thermal stability of chitosan composite flm was not signifcant. These fndings indicated that this simple method was greatly helpful for enhancing the hydrophobic application performance of chitosan based composite flm

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  Cite this article

[IEEE Style]

C. Li, C. Li, K. Chen, L. Jiao, Y. Yang, Q. Cao, S. Ni, "Water Resistance of Chitosan–Dopamine–Montmorillonite Film Added with LNP," Fibers and Polymers, vol. 25, no. 10, pp. 3649-3659, 2024. DOI: 10.1007/s12221-024-00687-1.

[ACM Style]

Chengsheng Li, Chengsheng Li, Ke Chen, Liang Jiao, Yuting Yang, Qianwen Cao, and Shuzhen Ni. 2024. Water Resistance of Chitosan–Dopamine–Montmorillonite Film Added with LNP. Fibers and Polymers, 25, 10, (2024), 3649-3659. DOI: 10.1007/s12221-024-00687-1.

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