Pickering emulsions consisting of nanochitin/nanocellulose and cinnamon essential oil were synthesized and utilized as a water-based coating for filter paper, resulting in improved oxygen barrier and vapor barrier characteristics. The incorporation of cinnamon essential oil within Pickering emulsion facilitated a delayed release of the oil, thereby imparting antibacterial properties against on the coated filter paper. Moreover, the Pickering emulsion coating technique not only formed a uniform film that covered the fibers and pores of the filter paper, which enhanced the oxygen barrier properties (oxygen permeability reached 0.00285 ± 1.69967E-5 cm/m·d·Pa, 0.02937 ± 1.71335E-14 cm/m·d·Pa and 0.2283 ± 4.18994E-14 cm/m·d·Pa for DEChN, ChNC and CNC treated sample, respectively), but also reduced filter hydrophilicity performance (contact angles of DEChN, ChNC and CNC coated samples increased from 10.93 ± 0.89° to 81.10 ± 0.89°, 65.57 ± 1.09° and 58.93 ± 0.95°, respectively) and water vapor barrier performance (moisture permeability of DEChN, ChNC and CNC coated samples increased from 2530.9346 ± 20.3587 g/m·day to 90.2211 ± 11.3913 g/m·day, 153.547 ± 3.9448 g/m·day and 350.5407 ± 0.24364 g/m·day, respectively) of the filter paper. This work investigated the coating performance of nanochitin/nanocellulose based Pickering emulsion, and would provide a green route for preparing all biomass-base packing materials.

中文翻译：

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生物涂层滤纸：用纳米甲壳素/纳米纤维素增强抗菌和屏障

合成了由纳米甲壳素/纳米纤维素和肉桂精油组成的皮克林乳液，并将其用作滤纸的水基涂料，从而改善了氧气阻隔和蒸汽阻隔特性。在皮克林乳液中加入肉桂精油有助于延迟释放油，从而赋予涂层滤纸抗菌性能。而且，Pickering乳液涂覆技术不仅形成了均匀的薄膜，覆盖了滤纸的纤维和孔隙，增强了阻氧性能（透氧率达到0.00285±1.69967E-5 cm/m·d·Pa，0.02937± DEChN、ChNC 和 CNC 处理的样品分别为 1.71335E-14 cm/m·d·Pa 和 0.2283 ± 4.18994E-14 cm/m·d·Pa），但也降低了过滤器的亲水性能（DEChN、ChNC 的接触角）和 CNC 涂层样品分别从 10.93 ± 0.89° 增加到 81.10 ± 0.89°、65.57 ± 1.09° 和 58.93 ± 0.95°）和水蒸气阻隔性能（DEChN、ChNC 和 CNC 涂层样品的透湿性从 2530.9346 ± 20.3587 g 增加） /m·天分别为90.2211±11.3913g/m·天、153.547±3.9448g/m·天和350.5407±0.24364g/m·天)的滤纸。该工作研究了纳米甲壳素/纳米纤维素基Pickering乳液的涂层性能，为制备所有生物质基包装材料提供了一条绿色路线。