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Limits in reaching the anhydrous state of wood and cellulose
Springer Science and Business Media LLC - Tập 30 - Trang 6247-6257 - 2023
Water-sorption studies and certain organic chemistry reactions require water removal from cellulosic samples. This is hindered by the strong interaction of cellulosic materials with water, and it remains uncertain if a completely anhydrous state can be reached under common drying conditions. Here, different drying conditions were applied to wood and cellulose, and the residual moisture contents we...... hiện toàn bộ
Durable, highly hydrophobic modification of cotton fabric with fluorine-free polysiloxanes obtained via hydrosilylation and hydrothiolation reactions
Springer Science and Business Media LLC - Tập 27 - Trang 8351-8367 - 2020
Cotton fabrics were subjected to modification with fluorine-free polysiloxanes. In the first stage a series of polysiloxanes substituted with alkoxysilyl groups and/or alkyl chains were synthesized. Two methods of functionalization of vinyl group-containing polysiloxanes were used, i.e. hydrosilylation and hydrothiolation. Cotton fabrics were modified via dip-coating technique in solutions of the ...... hiện toàn bộ
Graphene wrapped wood-based phase change composite for efficient electro-thermal energy conversion and storage
Springer Science and Business Media LLC - - 2021
With the increasing importance of electronic devices in modern industry, considerable efforts have been devoted to solving the problem that the electronic devices fail to work normally in a cold environment. Herein, we designed and fabricated a graphene wrapped wood-based phase change composite with electro-thermal conversion and energy storage capabilities by delignification of natural wood, cove...... hiện toàn bộ
Antioxidant activity of limonene modified cellulose pulp fiber-polylactic acid (PLA) composites
Springer Science and Business Media LLC - Tập 30 - Trang 1599-1622 - 2022
Pulp fibers are among the most abundant and cost effective cellulose source for the fabrication of polymer-cellulose composites. A straightforward method is to impregnate pulp fibers into thermoplastic films by hot press forming. As such, tissue materials made from hard or soft wood lignin-free Kraft fibers are attractive. In this work, we prepared cellulose fiber-polylactic acid (PLA) composite f...... hiện toàn bộ
Effect of digestion by pure cellulases on crystallinity and average chain length for bacterial and microcrystalline celluloses
Springer Science and Business Media LLC - Tập 14 - Trang 283-293 - 2007
In this study we employed Size Exclusion Chromatography (SEC) and X-ray diffraction to monitor the molecular weight and crystallinity of bacterial cellulose I and II (BC-I, BC-II) and microcrystalline cellulose (MCC) digested with three “pure” Thermobifida fusca cellulases (Cel6A, Cel6B, and Cel9A ). For each enzyme, cellulose crystallinity was found to increase modestly with treatment time. The d...... hiện toàn bộ
Optimization of microfluidization for the homogeneous distribution of cellulose nanocrystals (CNCs) in biopolymeric matrix
Springer Science and Business Media LLC - Tập 21 - Trang 3457-3468 - 2014
Microfluidization, which is a high-pressure homogenization technique, was used to develop highly dispersed cellulose nanocrystal (CNC) reinforced chitosan based nanocomposite films. A three factor central composite design with five levels was designed to systematically optimize the microfluidization process. The three factors were the CNC content, the microfluidization pressure and the number of ...... hiện toàn bộ
Production of derivatives from wheat straw as reinforcement material for paper produced from secondary fibersAbstract Nowadays, a high percentage (> 50%) of the paper produced in Europe uses recovered paper (secondary fibers) as raw material. In order to improve the mechanical properties of the paper produced, different kinds of additives are usually incorporated into the paper. Emerging renewable materials based on agricultural or forest residues, such as cellulose nan... ... hiện toàn bộ
Springer Science and Business Media LLC - Tập 31 Số 4 - Trang 2541-2556 - 2024
Cellulose acetate, cellulose acetate propionate and cellulose acetate butyrate membranes for water desalination applications
Springer Science and Business Media LLC - - 2020
A reproducible method to characterize the bulk morphology of cellulose nanocrystals and nanofibers by transmission electron microscopy
Springer Science and Business Media LLC - Tập 27 - Trang 4871-4887 - 2020
With the increased use of nanocelluloses as additives in many industrial applications, better characterization methods are needed to ensure their effectiveness. Transmission electron microscopy (TEM) is an appropriate image acquisition system to enable their morphological characterization. The use of TEM has typically been focused on determining the diameter and length of individual cellulose nano...... hiện toàn bộ
Sol–gel synthesis of insensitive nitrated bacterial cellulose/cyclotrimethylenetrinitramine nano-energetic composites and its thermal decomposition property
Springer Science and Business Media LLC - Tập 29 - Trang 7331-7351 - 2022
In the domain of energetic materials (EMs), the high-energy and high-safety EMs have infinite promising in modern defense weapons. Herein, this study prepared a novel nitrated bacterial cellulose/cyclotrimethylenetrinitramine (NBC/RDX) nanocomposite energetic material via a straightforward, mild and safe sol–gel method and freeze-drying technology. A unique and stable three-dimension (3D) porous n...... hiện toàn bộ
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