Preparation of bio-based cellulose acetate/chitosan composite film with oxygen and water resistant properties

Zhou, Huimin; Tong, Hao; Lü, Jie; Cheng, Yi; Qian, Fang; Tao, Yehan; Wang, Haisong

doi:10.1016/j.carbpol.2021.118381

Cited by 66 publications

(22 citation statements)

References 36 publications

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“…It has been reported that hydrophobic nanoparticles increase water contact angles when exposed to membrane surfaces [ 66 ]. Similar findings were reported for the incorporation of Cu-NPs into cellulose acetate films [ 72 ] and silica particles into cellulose acetate/chitosan films (CA/CS-Si) [ 73 ]. Likewise, neat chitosan appeared to be relatively hydrophobic, with a WCA = 89.4°, most likely due to chitosan’s hydrophobic backbone [ 74 ].…”

Section: Resultssupporting

confidence: 84%

Biopolymer-Based Films Reinforced with FexOy-Nanoparticles

et al. 2022

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Nowadays, natural polymer-based films are considered potentially environmentally friendly alternatives to conventional plastic films, due to many advantageous properties, including their easy processability, high flexibility, non-toxicity, low cost, high availability, and environmental safety. However, they are limited in their application by a number of shortcomings, including their high water solubility and vapor permeability as well as their poor opacity and low mechanical resistance. Thus, nanoparticles, such as green FexOy-NPs, can be used to overcome the drawbacks associated with these materials. Therefore, the aim of this study was to develop three different polymer-based films (gelatin-based, cellulose acetate-based and chitosan-based films) containing green synthesized FexOy-NPs (1.0% w/w of the initial polymer weight) as an additive to improve film properties. This was accomplished by preparing the different films using the casting method and examining their physicochemical, mechanical, microstructural, and functional characteristics. The results show that the incorporation of FexOy-NPs into the different films significantly enhanced their physicochemical, mechanical, and morphological properties as well as their antioxidant characteristics. Consequently, it was possible to produce suitable natural polymer-based films with potential applications across a wide range of industries, including functional packaging for food, antioxidants, and antimicrobial additives for pharmaceutical and biomedical materials as well as pesticides for agriculture.

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Section: Resultssupporting

confidence: 84%

Biopolymer-Based Films Reinforced with FexOy-Nanoparticles

et al. 2022

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“…However, upon the incorporation of ZnO-NPs into the CA-based film, its surface character changed from hydrophilic to hydrophobic, since the WCA increased to 92.1, indicating the hydrophobicity of ZnO-NPs. Similar results have been reported regarding the contribution of nanoparticles that lead to the enhancement of the hydrophobicity or impairment of the hydrophilicity of the membrane surfaces with increasing WCA values [ 73 ], such as the incorporation of silica nanoparticles (Si-NPs) into CA/CH-based films (CA/CH-Si) [ 79 ], and Cu-NPs into CA-based films [ 80 ]. On the other hand, the CH-based neat film seemed to be more hydrophilic, with the WCA ≈ 74.2°.…”

Section: Resultssupporting

confidence: 75%

Biopolymer-Based Films Reinforced with Green Synthesized Zinc Oxide Nanoparticles

et al. 2022

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Nowadays, biopolymer-based films are being developed as an alternative to conventional plastic-based films, mainly because they are non-toxic, flexible, inexpensive, and widely available. However, they are restricted in their applications due to several deficiencies in their properties. Accordingly, the reinforcement of these materials with nanoparticles/nanofillers could overcome some of their shortcomings, especially those processed by green methods. Green synthesized zinc oxide nanoparticles (ZnO-NPs) are highly suggested to overcome these deficiencies. Therefore, the main aim of this work was to develop different biopolymer-based films from cellulose acetate (CA), chitosan (CH), and gelatin (GE) reinforced with ZnO-NPs prepared by casting, and to assess their different properties. The results show the improvements produced by the incorporation of ZnO-NPs (1% w/w) into the CA, CH, and GE systems. Thus, the water contact angles (WCAs) increased by about 12, 13, and 14%, while the water vapor permeability (WVP) decreased by about 14, 6, and 29%, the water solubility (WS) decreased by about 23, 6, and 5%, and the transparency (T) increased by about 19, 31, and 20% in the CA, CH, and GE systems, respectively. Furthermore, the mechanical properties were enhanced by increasing the ultimate tensile strength (UTS) (by about 39, 13, and 26%, respectively) and Young’s modulus (E) (by about 70, 34, and 63%, respectively), thereby decreasing the elongation at the break (εmax) (by about 56, 23, and 49%, respectively) and the toughness (by about 50, 4, and 30%, respectively). Lastly, the antioxidant properties were enhanced by 34, 49, and 39%, respectively.

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“…Furthermore, the hydrophilic inclination of the film, due to the presence of chitosan was overcome using silica, by tuning it to be hydrophobic, which is a desirable property in food packaging [20]. Compared to commercially available polyethylene, the cellulosebased film fabricated from delignified banana stem fibers by Ai et al [21] demonstrated higher gas and moisture permeability.…”

Section: Cellulose/nano-cellulosementioning

confidence: 99%

“…Nanocomposites are considered an effective alternative to improve the effectiveness of the polymers above to a level suitable for food packaging applications [22]. Numerous research studies have reported that using nanostructured cellulose fibers as a strengthening material in composite packaging can result in significant improvements in gas permeation properties, thermal stability, and biodegra- Furthermore, the hydrophilic inclination of the film, due to the presence of chitosan was overcome using silica, by tuning it to be hydrophobic, which is a desirable property in food packaging [20]. Compared to commercially available polyethylene, the cellulose-based film fabricated from delignified banana stem fibers by Ai et al [21] demonstrated higher gas and moisture permeability.…”

Section: Cellulose/nano-cellulosementioning

confidence: 99%

Recent Advancements in Smart Biogenic Packaging: Reshaping the Future of the Food Packaging Industry

et al. 2022

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Due to their complete non-biodegradability, current food packages have resulted in major environmental issues. Today’s smart consumer is looking for alternatives that are environmentally friendly, durable, recyclable, and naturally rather than synthetically derived. It is a well-established fact that complete replacement with environmentally friendly packaging materials is unattainable, and bio-based plastics should be the future of the food packaging industry. Natural biopolymers and nanotechnological interventions allow the creation of new, high-performance, light-weight, and environmentally friendly composite materials, which can replace non-biodegradable plastic packaging materials. This review summarizes the recent advancements in smart biogenic packaging, focusing on the shift from conventional to natural packaging, properties of various biogenic packaging materials, and the amalgamation of technologies, such as nanotechnology and encapsulation; to develop active and intelligent biogenic systems, such as the use of biosensors in food packaging. Lastly, challenges and opportunities in biogenic packaging are described, for their application in sustainable food packing systems.

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Preparation of bio-based cellulose acetate/chitosan composite film with oxygen and water resistant properties

Cited by 66 publications

References 36 publications

Biopolymer-Based Films Reinforced with FexOy-Nanoparticles

Biopolymer-Based Films Reinforced with FexOy-Nanoparticles

Biopolymer-Based Films Reinforced with Green Synthesized Zinc Oxide Nanoparticles

Recent Advancements in Smart Biogenic Packaging: Reshaping the Future of the Food Packaging Industry

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