Journal
CARBOHYDRATE POLYMERS
Volume 233, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.115884
Keywords
Alginate; Melanin particle; Nanocomposite; Thermal insulating; UV-shielding
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Funding
- Natural Science Foundation of Shandong province [ZR2019MB020]
- State Key Laboratory of Bio-Fibers and Eco-Textiles of Qingdao University [KF 2017kfkt13]
- Doctor Star-up Foundation of Qingdao Agriculture University [663/1117013, 663/1117012]
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Light is a major factor in promoting food aging and deterioration, especially for ultraviolet (UV) light. Herein, bioinspired dopamine-melanin solid nanoparticles with strong absorption at a wide range of 200-2500 nm were first incorporated into alginate/polyvinyl alcohol to fabricate film materials in this work for UV-vis block, and this also brings excellent thermal insulating properties to the materials. In addition, in order to obtain a material with excellent performance, particles of uniform size of about 100 nm are obtained by fractional centrifugation. It was found the mechanical, UV-vis block and thermal insulating properties were improved significantly compared with the control samples. This study provides a strategy to design a non-polluting, biodegradable, biocompatible film with excellent mechanical properties that can be used in UV-vis barriers and has potential applications in thermal insulating materials for food preservation.
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