Excellent coating of collagen fiber/chitosan-based materials that is water- and oil-resistant and fluorine-free

Xin Jing; Xia Li; Yifei Jiang; Ruhe Zhao; Qijun Ding; Wenjia Han

doi:10.1016/j.carbpol.2021.118173

Excellent coating of collagen fiber/chitosan-based materials that is water- and oil-resistant and fluorine-free

Carbohydr Polym. 2021 Aug 15:266:118173. doi: 10.1016/j.carbpol.2021.118173. Epub 2021 May 7.

Authors

Xin Jing¹, Xia Li¹, Yifei Jiang¹, Ruhe Zhao¹, Qijun Ding², Wenjia Han³

Affiliations

¹ State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
² State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China. Electronic address: xianshengding@qiu.edu.cn.
³ State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China. Electronic address: hwj200506@163.com.

PMID: 34044961
DOI: 10.1016/j.carbpol.2021.118173

Abstract

Collagen fiber has attracted much attention due to its good biocompatibility and biodegradability. In the present research, we prepared a type of non-fluorine hydrophobic and oil-resistant material using collagen fiber, chitosan, and polydimethylsiloxane (PDMS) as raw materials. To improve oil/grease resistance, the first layer filled the porous matrix and was made from the cross-linking product of collagen fiber/chitosan and glutaraldehyde. This was followed by a simple coating of PDMS, to increase hydrophobicity and water resistance. Notably, 10 g/m² of cross-linking product and 6 g/m² of PDMS had a low pore size as well as a smooth and uniform surface, which made the composites exhibit excellent hydrophobic and oil-resistant properties (water contact angles of 141°), water and oil resistance (kit rating value of 12/12) and mechanical properties. Fluorine-free environment-friendly materials with high water and oil resistance play an important role in promoting the development of high-performance materials for food packaging.

Keywords: Chitosan; Collagen fiber; Fluorine free; Packaging materials; Water and oil/grease resistance.