Preparation of formyl cellulose and its enhancement effect on the mechanical and barrier properties of polylactic acid films

Long, Shuangyan; Zhong, Lei; Lin, Xuliang; Chang, Xiaogang; Wu, Fuqi; Wu, Ruchun; Xie, Fengwei

doi:10.1016/j.ijbiomac.2021.01.029

Cited by 21 publications

(16 citation statements)

References 46 publications

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“…These results suggest that antimicrobial packaging is not only able to show the ability of controlling the growth of microorganisms and prolonging the shelf life of food, which is very important in food safety, but also has a positive effect on the environment [129]. Many studies have been conducted on the mechanism of silver nanoparticles as an active packaging ingredient in packaging [53,55,58,[133][134][135][136][137][138][139]. Figure 9 shows the possible mechanism of silver nanoparticles' action in the antimicrobial food packaging.…”

Section: Performance Of Antimicrobial Packagingmentioning

confidence: 99%

Advances in Bio-Based and Biodegradable Polymeric Composites

2023

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Section: Performance Of Antimicrobial Packagingmentioning

confidence: 99%

Advances in Bio-Based and Biodegradable Polymeric Composites

2023

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“…Despite the popularity of this modification approach, only a few studies provided quantitative data on the effectiveness of cellulose modification. Long et al reported the esterification of cellulose by 70–90% formic acid solution at 70–90 °C for 1–5 h [ 137 ]. According to HPLC analysis, the variation of conditions resulted in the binding from 1.7 to 15.8% formyl groups.…”

Section: Modification Of Cellulose Micro- and Nanomaterialsmentioning

confidence: 99%

“…Practically no effect on the mechanical properties of PLA-based composites (also prepared by solution casting) was observed when CMC was modified with palmitic-acid residues from olive oil [ 146 ]. The modification of cellulose fibers with formic acid and variation of the content of formyl groups from 1.7 to 15.8% provided an increase in tensile strength of the PLA-based composites produced by solution casting [ 137 ]. Even at the lowest formyl group content on the cellulose surface, the tensile strength and Young’s modulus increased by more than 200%.…”

Section: Aliphatic Polyesters/cellulose Compositesmentioning

confidence: 99%

Modification of Cellulose Micro- and Nanomaterials to Improve Properties of Aliphatic Polyesters/Cellulose Composites: A Review

Stepanova

Korzhikova-Vlakh

2022

Polymers

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Aliphatic polyesters/cellulose composites have attracted a lot attention due to the perspectives of their application in biomedicine and the production of disposable materials, food packaging, etc. Both aliphatic polyesters and cellulose are biocompatible and biodegradable polymers, which makes them highly promising for the production of “green” composite materials. However, the main challenge in obtaining composites with favorable properties is the poor compatibility of these polymers. Unlike cellulose, which is very hydrophilic, aliphatic polyesters exhibit strong hydrophobic properties. In recent times, the modification of cellulose micro- and nanomaterials is widely considered as a tool to enhance interfacial biocompatibility with aliphatic polyesters and, consequently, improve the properties of composites. This review summarizes the main types and properties of cellulose micro- and nanomaterials as well as aliphatic polyesters used to produce composites with cellulose. In addition, the methods for noncovalent and covalent modification of cellulose materials with small molecules, polymers and nanoparticles have been comprehensively overviewed and discussed. Composite fabrication techniques, as well as the effect of cellulose modification on the mechanical and thermal properties, rate of degradation, and biological compatibility have been also analyzed.

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“…Pretreatment using some chemicals is, therefore, required to strengthen the interfacial bond between the matrix and cellulosic material. Treatment also provides a barrier against moisture absorption by making a good interfacial bond that restricts the water movement towards the interface and enhances the wetting properties of the reinforcement towards the matrix [ 56 , 57 , 58 , 59 ]. Figure 5 shows the scheme of various chemical modification processes.…”

Section: Chemical Treatment Of Nanocellulosementioning

confidence: 99%

Sources, Chemical Functionalization, and Commercial Applications of Nanocellulose and Nanocellulose-Based Composites: A Review

Tahir

Karim

et al. 2022

Polymers

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Nanocellulose is the most abundant material extracted from plants, animals, and bacteria. Nanocellulose is a cellulosic material with nano-scale dimensions and exists in the form of cellulose nanocrystals (CNC), bacterial nanocellulose (BNC), and nano-fibrillated cellulose (NFC). Owing to its high surface area, non-toxic nature, good mechanical properties, low thermal expansion, and high biodegradability, it is obtaining high attraction in the fields of electronics, paper making, packaging, and filtration, as well as the biomedical industry. To obtain the full potential of nanocellulose, it is chemically modified to alter the surface, resulting in improved properties. This review covers the nanocellulose background, their extraction methods, and possible chemical treatments that can enhance the properties of nanocellulose and its composites, as well as their applications in various fields.

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Preparation of formyl cellulose and its enhancement effect on the mechanical and barrier properties of polylactic acid films

Cited by 21 publications

References 46 publications

Advances in Bio-Based and Biodegradable Polymeric Composites

Advances in Bio-Based and Biodegradable Polymeric Composites

Modification of Cellulose Micro- and Nanomaterials to Improve Properties of Aliphatic Polyesters/Cellulose Composites: A Review

Sources, Chemical Functionalization, and Commercial Applications of Nanocellulose and Nanocellulose-Based Composites: A Review

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