期刊
CARBOHYDRATE POLYMERS
卷 266, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.118173
关键词
Water and oil; grease resistance; Fluorine free; Packaging materials; Collagen fiber; Chitosan
资金
- National Key Research and Development Program of China [2020YFC1910301]
- Shandong Science and Technology Program [ZR201702220356]
This study prepared a non-fluorine hydrophobic and oil-resistant material using collagen fiber, chitosan, and PDMS, achieving excellent hydrophobic and oil-resistant properties combined with good water and oil resistance. The composite materials show potential for promoting the development of high-performance materials for food packaging by combining cross-linking products and PDMS in a specific ratio.
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/ m(2) of cross-linking product and 6 g/m(2) 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 degrees), water and oil resistance (kit rating value of 12/12) and mechanical properties. Fluorine-free environmentfriendly materials with high water and oil resistance play an important role in promoting the development of high-performance materials for food packaging.
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