Abstract
Both cellulose and lignin are rich natural resources; however, recombining them to prepare composite materials is a major challenge. In this study, a cellulose/lignin/xylan film with higher thermostability and water and oxidation resistance was developed using a simple and green immersing, drying, and hot-pressing procedure. The films were evaluated based on their tensile properties, water retention value, thermal stability, water absorption, and oxidation resistance and were characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, a scanning electron microscope, and an optical digital microscope. The results showed that xylan enhanced the hydrogen bonding between cellulose and lignin, and water further plasticized and promoted the bonding of the ternary components. Compared with the cellulose film, the addition of lignin provided the film with higher water resistance, thermostability, and oxidation resistance. Cellulose/lignin/xylan film with these excellent properties could be applied to the fields of food packaging, transportation, preservation, and biomedicine.
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