Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Барбаш, В. А.; Yaschenko, O. V.

doi:10.5772/intechopen.94272

Cited by 19 publications

(14 citation statements)

References 117 publications

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“…At the second stage, to remove residual lignin and extractives, organosolv cooking was carried out using a solution of glacial acetic acid and 35 % hydrogen peroxide in a volume ratio of 7 : 3 with a liquid-to-solid ratio of 10 : 1 at a temperature of 97 ± 2 °C for 120 min. These values of technological parameters were previously determined for the extraction of different representatives of non-wood plant raw materials [13].…”

Section: Methods For Obtaining Pulp Nanocellulose and Papermentioning

confidence: 99%

Nanocellulose From Reed Stalks to Improve the Properties of Paper for Packaging Food Products

Барбаш

Yashchenko

Гондовська

et al. 2021

KPI SN

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Background. The development of technologies for obtaining materials from plant raw materials, the use of which improves the consumer properties of cardboard and paper products and does not pollute the environment with harmful substances from synthetic polymers, is an urgent problem of our time. Objective. The purpose of the paper is to obtain pulp and nanocellulose from reed stalks by environmentally friendly methods and apply nanocellulose to improve the quality parameters of paper for packaging food products on automatic machines. Methods. To obtain pulp from reed stalks with a minimum residual content of lignin and minerals, two processing stages were used: alkaline extraction and organosolv cooking at a temperature of 97 ± 2 °C. Nanocellulose was obtained by the oxidation of organosolv reed pulp with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) in the TEMPO / NaBr / NaClO system, which is more environmentally friendly than acid hydrolysis. The resulting nanocellulose was applied to paper samples from waste paper and sulphate unbleached pulp at a consumption from 1 to 3 g/m2. Results. Organosolv pulp was obtained from reed stalks with a residual lignin content of 0.53 % and an ash content of 0.045 %, which was used to obtain nanocellulose. The resulting nanocellulose particles have a transverse size in the range of 5–20 nm, a length of up to several micrometers, and the tensile strength of nanocellulose films is up to 60 MPa. It is shown that the application of nanocellulose to the surface of the samples increases the breaking strength and breaking length, and reduces the surface absorbency of paper. It was determined that with a nanocellulose consumption of up to 3 g/m2, paper samples have indicators that meet the requirements of the standard for paper for packaging food products on automatic machines. Conclusions. The use of nanocellulose from reed stalks as a hardening substance for paper production will allow replacing environmentally harmful polymer additives and up to 50 % of more expensive softwood pulp with waste paper, while maintaining paper quality indicators at the level of standard requirements.

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Section: Methods For Obtaining Pulp Nanocellulose and Papermentioning

confidence: 99%

Nanocellulose From Reed Stalks to Improve the Properties of Paper for Packaging Food Products

Барбаш

Yashchenko

Гондовська

et al. 2021

KPI SN

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“…Thus, some combinations of pre-treatments and mechanical treatments, such as enzymatic hydrolysis with mechanical shearing and high-pressure homogenization; acid hydrolysis with successive mechanical disintegration, for example, with an ultrasonic homogenizer; TEMPO mediated oxidation pre-treatment usually followed by a mechanical treatment, which can be performed using a cooking blender or an ultra turax system; carboxymethylation and acetylation pre-treatment, etc., improve environmental friendliness and shorten the duration of the nanocellulose production process. Furthermore, combined with pre-treatments and mechanical treatments, a number of post-treatments, such as acetylation, silylation, grafting of coupling agents, are increasingly being carried out in order to enhance the properties of NFC/MFC [10,[24][25][26][27][28]40,59,67,[70][71][72][73][74][75][76].…”

Section: Nanocellulosementioning

confidence: 99%

“…BC was originally used as a food source (nata de coco) in Asia, in the form of sweet candies or custards. However, its unique properties have also led to its use as a wound dressing; BC production for this specific purpose dates 10(2) (2021) [73][74][75][76][77][78][79][80][81][82][83] back to the early 1980s. Its use as a wound-healing material is governed by its outstanding properties, namely: a high water holding capacity, tensile strength, and flexibility; a pronounced permeability to gases and liquids; and great compatibility with living tissues.…”

Section: Nanocellulosementioning

confidence: 99%

“…Preparation, morphological features, physical properties and applications of nanocelluloses are comprehensively discussed in following review papers [8,10,[24][25][26]28,40,59,67,70], book chapters [72][73][74][75]87] and books [76,[88][89][90][91][92][93]. A variety of market reports and guides for end-users have been published forecasting the nanocellulose market [86,94].…”

Section: Nanocellulosementioning

confidence: 99%

“…(2021) [73][74][75][76][77][78][79][80][81][82][83] knowledge in the basic and application-oriented work in the field of cellulose.…”

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confidence: 99%

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Development of novel cellulose-based functional materials

Kostić¹

2021

Adv Techol

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Nowadays, functional materials based on renewable bioresources and environmentally friendly processes have attracted increased attention of both the industrial and the scientific community. Cellulose, the structural material of all plants, is the most abundant natural and renewable polymer possessing some promising properties, such as mechanical robustness, hydrophilicity, biocompatibility, and biodegradability. This paper gives an overview of the current cellulose research directed towards an advanced understanding and application of this most important bioresource. Emphasis is placed on cellulose functionalization and its conversion into novel high-performance cellulose materials with tailored properties (such as fibers, films, membranes, composites, and biomedical materials). Various physical and chemical treatments (alkalis, oxidizing agents, acetylation, ultrasound treatment, plasma treatment, and many other single or combined methods) used for cellulose modification to adjust its properties for different purposes, have been concisely reviewed. Furthermore, the unique hierarchical architecture of natural cellulose consisting of nanoscale fibrils and crystallites allows the extraction of the nanocrystals, and micro- and nanofibrilated cellulose via mechanical and chemical methods or their combination. These nanocellulose materials offer great opportunities in the field of advanced and functional materials. Finally, a novel platform to prepare various cellulose-based materials through more efficient and environmentally friendly processes based on recently developed new and "green" solvents for cellulose has also been discussed.

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