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Twin-roll forming, a novel method for producing high-consistency microfibrillated cellulosic films
Springer Science and Business Media LLC - Tập 29 - Trang 9627-9636 - 2022
Elaheh Sharifi Zamani, Hamidreza Ahadian, Thaddeus Maloney
Micro-nano fibrillated cellulose (MNFC) films have the potential for applications in, e.g., packaging and printed electronics. However, the production paradigm for these types of products has still not been established. This study uses twin-rollers to form films from high consistency (15% w/w) micro fibrillated cellulose furnishes. MFC furnishes were produced at 20% wt dry matter content with enzy...... hiện toàn bộ
Enzyme-assisted mechanical production of microfibrillated cellulose from Northern Bleached Softwood Kraft pulp
Springer Science and Business Media LLC - Tập 24 - Trang 3929-3942 - 2017
Xiaofei Tian, Peng Lu, Xueping Song, Shuangxi Nie, Yang Liu, Mingyou Liu, Zhiwei Wang
This paper examines the mechanism of an enzyme pre-treatment on mechanical preparation of microfibrillated cellulose (MFC), the effects of hemicellulase and cellulase, on enhancing of the PFI refining efficiency of Northern Bleached Softwood Kraft pulp for fiber’s devillicate, and changing of morphologies and physical characteristics on fibers, such as specific surface area were investigated, resp...... hiện toàn bộ
Prediction and analysis of preparation of cellulose nanocrystals with machine learning
Springer Science and Business Media LLC - Tập 30 - Trang 6273-6287 - 2023
Hongzhen Wang, Qin Du, Yalin Liu, Shijie Cheng
Extraction of cellulose nanocrystals (CNCs) from diverse cellulose sources is a promising and sustainable approach to produce nanocomposites. However, the traditional batch experiments are time/labor-consuming. Hence, three machine learning (ML) algorithms, i.e., decision regression tree, random forest, and artificial neural networks were applied to develop ML models. The dataset collected from pu...... hiện toàn bộ
Formation and structure of the complexes of sub-elementary fibrils of bacterial cellulose with fluorescent brightener molecules
Springer Science and Business Media LLC - Tập 19 - Trang 1607-1618 - 2012
Shinji Suzuki, Asako Hirai, Fumitaka Horii
The formation and structure of the complexes of sub-elementary fibrils (SEFs) of bacterial cellulose with fluorescent brightener (FB) molecules have been investigated using WAXD, SEM, and computer calculations of WAXD profiles. It is confirmed for the first time that the SEF-FB complexes are formed in 10 min by washing the cultivation product, which is prepared by the culture of Acetobacter xylinu...... hiện toàn bộ
Cellulose-protein blended sustainable biodegradable flexible composite: a step towards a leather alternative
Springer Science and Business Media LLC - Tập 30 - Trang 11087-11112 - 2023
S. Basak, D. B. Shakyawar, Kartick K. Samanta, Niranjan Kumar, M. Bhowmick, Sanjoy Debnath, R. K. Ghosh, B. S. Manjunatha, S. Ghosh, I. Mustafa, V. Kadam
A new method of manufacturing flexible composite has been developed by using cellulose-protein fibre blended needle punched non-woven structure and suitable chemical formulation of natural rubber, sulphur dispersion, accelerator, activator, stabilizer, natural filler antioxidant. Scoured proteinous wool fibre was used in different blend proportion with bleached cellulosic ramie fibre (ramie: wool ...... hiện toàn bộ
Water accessibility to hydroxyls confined in solid wood cell walls
Springer Science and Business Media LLC - Tập 27 - Trang 5617-5627 - 2020
Emil Engelund Thybring, Sara Piqueras, Asghar Tarmian, Ingo Burgert
The hydrophilicity of wood cell walls derives from the presence of hydroxyls, but their accessibility is restricted by physical confinement from the stiff, solid cell walls. This study examines how this confinement affects water uptake of the accessible hydroxyls by tuning their amount through replacement with various non-hydrophilic functional groups. Results from gravimetrically determined hydro...... hiện toàn bộ
A comparison between acrilic resin and butanetetracarboxylic acid used to bind TiO2 nanoparticles to cotton fabrics
Springer Science and Business Media LLC - Tập 22 - Trang 1347-1354 - 2015
M. Bonet, E. Bou-Belda, P. Monllor, J. Gisbert, P. Díaz, I. Montava
In order to apply finishing particles onto fabrics, several methods such as, padding, bath exhaustion, spraying and foaming can be used. In this research, spray treatment is compared to padding when applying TiO2 nanoparticles onto textiles. Cotton fabric surfaces were observed by scanning electron microscopy and characterized by Fourier Transform Infrared spectroscopy and energy dispersive using ...... hiện toàn bộ
Wettability, surface free energy and cellulose crystallinity for pine wood (Pinus sp.) modified with chili pepper extracts as natural preservatives
Springer Science and Business Media LLC - Tập 25 - Trang 6151-6160 - 2018
Analine C. Ziglio, Mauro R. Sardela, Débora Gonçalves
Fresh chili peppers (Malagueta, Red Savina and Bhut Jolokia) were used as natural finishing agents for Pinus sp. (Pinus). The solvent extraction of dried peppers produced a viscous liquid primarily containing capsicin, a pungent, lipophilic compound, and known as oleoresin capsicum (OC). Changes in surface wettability were monitored by the sessile-drop technique for samples treated with OC. The co...... hiện toàn bộ
Electrocatalytic Pt-embedded ZIF-8 on nanocellulose-based flexible conductive electrodes for hydrogen evolution reaction
Springer Science and Business Media LLC - Tập 30 - Trang 3185-3200 - 2023
Nattinee Krathumkhet, Cheng-Yu Kao, Toyoko Imae, Carlos Rodriguez-Abreu
Hydrogen fuel cell is a clean green energy device, but it is demanded valid conjugation between catalyst and substrate for generating the effective active site and ion transfer. Here, the hydrogen evolution reaction (HER) efficiency was investigated using Pt-embedded zeolitic imidazolate framework-8 (Pt@ZIF-8) electrocatalysts. Although the Pt content was only 2.8 wt%, the efficiency was equivalen...... hiện toàn bộ
Kinetic dissolution behavior and mechanism of bamboo cellulose fiber by TEMPO-catalyzed oxidation
Springer Science and Business Media LLC - Tập 26 - Trang 7089-7097 - 2019
Liang He, Shibo Yang, Qingqing Guan, Jing Li, Lincai Peng, Junhua Zhang
Oxidation of cellulosic fibers by the TEMPO system is highly efficient for obtaining micro/nano-sized fibrils. In this study, the dissolution degree related to the yield of products has been firstly and deeply investigated with treating bamboo pulps under various process conditions. Moreover, the dissolution behavior and mechanism for revealing the “phase transition” process of cellulosic fibers h...... hiện toàn bộ
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