JOURNAL OF MEMBRANE SCIENCE
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2026
·
IF 8.8
Xueliang Chen,Sen Xiong,Zhenfeng Lin,Chunling Liu,Yong Wang
The fabrication of high-performance hollow-fiber membranes (HFMs) can be effectively achieved through nanomaterial-based surface modification. However, achieving a uniform deposition of nanomaterials onto the curved surface remains a challenge. In this work, we have developed a pressure-driven, liquid-phase continuous deposition method to construct oxidized bacterial cellulose (BC) nanofibers onto HFMs in a layer-by-layer way. By controlling the oxidation time and deposition time, the Immunoglobulin G (IgG) rejection rate increases progressively from 50% to 90.1%, while the water permeance correspondingly decreases from approximately 1500 L m −2 h −1 ·bar −1 to 438.2 L m −2 h −1 ·bar −1 . The introduction of polyethylenimine (PEI) as a property regulator not only strengthens the crosslinking reaction but also further tunes the membrane properties. The oxidized BC membranes achieve a flux recovery ratio (FRR) of 64% in the cyclic filtration tests, which is 4 times that of the pristine substrates. The water permeance of the oxidized BC membranes can still be maintained above 80% of its initial value in the long-term filtration test. Moreover, the consumption of oxidized BC is as low as 1.77 g m −2 for modifying HFMs, which further enhances the process sustainability of HFMs fabrication.
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高影响因子
ACS Applied Polymer Materials
·
2025
·
IF 4.7
Xuran Xu,Luyu Yang,Xuebao Xiong,Yanan Zhang,Junhong Liu,Yubing Hu
The rapid development of moisture-responsive actuators has attracted considerable research attention in fields such as flexible electronics and soft robotics. However, the fabrication of robust cellulose-based actuators with superior mechanical strength and excellent moisture responsiveness remains a significant challenge. Herein, inspired by the adhesive properties of mussels, we developed a homogeneous moisture-responsive actuator (BCNF/PDA) by integrating bacterial cellulose nanofibers (BCNF) with polydopamine (PDA). The catechol and amino groups in PDA form strong interactions with BCNF through multiple covalent and noncovalent bonds, endowing the resulting actuator with high tensile strength (336 MPa), a high Young’s modulus (7.12 GPa), excellent toughness (12.4 MJ m–3), and rapid hygroscopic actuation performance. Owing to the fast moisture adsorption/desorption capabilities of BCNF and PDA, an effective moisture gradient is established within the actuator, enabling stable and rapid hygroscopic deformation. Consequently, the actuator exhibits a fast response, large deformation (133°), and high actuation force output (9.3 N m–2). Furthermore, its feasibility as a mechanical arm, smart switch and smart curtain for moisture control was demonstrated in a prototype device, highlighting the great potential of this type of actuator for practical applications.
研究领域:
材料科学
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纳米技术
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软体机器人
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柔性电子器件
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仿生学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Yuntao Liang,Xiaolong Cai,Yan Liu,Zhenglong He,Yong Sun,Shuanglin Song
Ion-conductive hydrogels have emerged as the promising candidate materials for flexible sensors due to their high ion migration efficiency and rapid responsiveness. However, achieving synergistic optimization of the mechanical, electrical and sensing properties of ion-conductive hydrogels remains a challenge. This study synthesized a dual-network ion-conductive hydrogel (PCN) via an in-situ thermal radical polymerization method. This hydrogel is formed through multiple cross-linking mechanisms involving covalent bonds, ionic bonds and hydrogen bonds. The optimal hydrogel (PCN-30) exhibits outstanding mechanical properties across a broad strain and temperature range (938 % tensile strain, 0.23 MPa tensile strength) and sensing performance (its relative resistance change exhibits good linearity with both tensile strain and temperature variation. For tensile strains of 10–300 %, the average gauge factor ( GF ¯ ) reaches 1.71. During temperature rise (15–45 °C) and drop (−35–15 °C) processes, GF ¯ are 2.46 and 1.63, respectively). Additionally, PCN-30 as a sensor enables rapid and precise motion and vital sign sensing as well as information transmission. This work highlights that the hydrogel combines the environmental adaptability over a wide temperature range and the sensitive response capability within a wide strain range, greatly promoting its practical application in the field of human-computer interaction.
研究领域:
材料科学
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柔性电子学
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传感器与执行器
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高分子化学
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人机交互
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DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2025
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IF 2.3
Qu Sitian,Lin Tao,Yin Xuefeng,Xing Luyi,Li Chenyang,Peng Guoqiang
The rapid advancement of information technology has led to an increase in electromagnetic interference (EMI) issues, as electronic devices are now widely utilized, requiring materials with greater versatility. This study developed an efficient preparation method utilizing alternating vacuum filtration (AVF) technology to overcome this issue. Through the precise control of the deposition sequence of cellulose nanofibers (CNF)/Na-bentonite (NB) and MXene conductive layers, this study successfully prepared CNF/NB–MXene composite films with a well-structured alternating layered structure. The composite film exhibited a distinctive "brick–mortar" architecture, imparting favorable mechanical properties (i.e., 8.17 MPa tensile strength). Measuring 41 μm thick, the composite film exhibited a conductivity of 189.6 S m –1 , along with EMI shielding effectiveness (SE) of 34.3 dB and SE per unit thickness (SE/t) of 8365.85 dB cm –1 in the X-band. Furthermore, the composite film demonstrated a high limiting oxygen index (LOI) of 36.5% and a residual carbon content exceeding 70%, which indicated exceptional flame retardancy. Consequently, the alternating layered composite film exhibited superior EMI performance and flame-retardant performance, making it particularly advantageous in harsh environments such as high temperatures.
研究领域:
材料科学
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纳米技术
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电磁干扰屏蔽
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聚合物复合材料
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防火材料
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高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2020
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IF 4.389
Chenmeizi Wang,Ling Wang,Qingle Zhang,Lu Cheng,Haitao Yue,Xin Xia,Huimin Zhou
Addition of nanomaterials into polymer matrix is a promising avenue to reinforce the mechanical properties of composites. In this work, chitosan-based hydrogels reinforced by cellulose nanofibers (CNFs) have been prepared by chitosan as matrix. The effect of CNFs (1vt%, 1.5vt% and 2vt%) on the structure-property relationship in mechanical, swelling capability, pH sensitivity and antibacterial have been investigated, respectively. Different from normal reinforced particle, CNFs with special fiber shape and abundant hydrogen bonding can form interconnected porous structure with chitosan hydrogel, which can spread stress and defer permanent damage under compressing. And the compressive strength increases nearly 20 % and swelling capacity achieve 140 %, when 1.5vt% CNFs added. Thanks to CNFs which obtained from apocynum venetum generated positive effect on the antibacterial rate against E. coli and S. aureus of composite hydrogel. It proves that CNFs display an excellent mechanical and antibacterial enhancement in composite, and it provided a new prospect for the rational selection of the different shapes and aspect ratio of reinforced materials. The obtained CNFs reinforced composite hydrogels could be potentially applied in antibacterial biological and food packaging area.
研究领域:
材料科学
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生物学
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医学
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DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2018
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IF 6.945
Junchen Liu,Kai Yang,Yudi Mo,Shuanjin Wang,Dongmei Han,Min Xiao,Yuezhong Meng
As a pivotal part of lithium-ion batteries, separator is supposed to have high strength , thermal stability and excellent wettability . In this study, polyformaldehyde/cellulose nanofibers blend separators are firstly prepared via thermally induced phase separation to improve the performance, especially the safety of LIBs. The polyformaldehyde/cellulose blend separators show considerable tensile strength (116 MPa) and Young's modulus (6.07 GPa) owing to the high crystallinity and high performance of polyformaldehyde and cellulose . In particular, benefiting from their abundant polar groups and highly porous structure , the polyformaldehyde/cellulose blend separators possess high electrolyte uptake (412%) and small contact angle (19°) as compare to the commercial polyethylene separator (115%, 58°). Moreover, the thermal treatment tests indicate that the polyformaldehyde/cellulose blend separators are thermally stable at as high temperature as 180 °C. And the polyformaldehyde/cellulose blend separators show higher ionic conductivity (1.39 mS cm −1 ) and lower interface resistance (49.5 Ω) than polyethylene separator (0.76 mS cm −1 , 136.4Ω). As expected, the LiFePO 4 /Li cell with polyformaldehyde-20-cellulose blend separators exhibit the best stable cycling performance and improved rate performance than PE separator, especially at high rate. In summary, the polyformaldehyde/cellulose blend separators are promising new kind of separator for LIBs with high safety and enhanced performance.
研究领域:
材料科学
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能源技术
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DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 20
·4413
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IF 4.967
Xi Chen,Lijiaqi Zhang,Min Wu,Yong Huang
Green and sustainable cellulose-based hydrophobic coatings are increasingly the subject of scientific and industrial research. However, few researchers pay attention to preparing it by a one-step method. Therefore, a superhydrophobic coating composed of hydrophobic SiO2and cellulose nanofiber modified by 3,4-dichlorophenyl isocyanate was manufactured through one-step ball milling. It was found that the ball milling can promote SiO2dispersion and achieve the preparation of modified nanocellulose, which further disperse SiO2nanoparticles to form film or coating. Compared with the ultrasonic dispersion method, the composite coating prepared by ball milling method can obtain higher water contact angle and more stable hydrophobic properties. The hydrophobic cellulose nanofiber can load 1.5 equivalents of SiO2nanoparticles to form a uniform film with the water contact angle of 158.0° and low moisture absorption. When this nanocomposite is used as a coating material, it can impart super-hydrophobicity to paper surface with water contact angle of 155.8°. This work provides a facile way to prepare superhydrophobic nanocellulose/nanoparticles composite coatings and films, thereby broadening the ways of dispersing nanoparticles and constructing superhydrophobic coatings.Keywords:cellulose nanofiber;hydrophobic SiO2nanoparticle;composite;hydrophobic coating;optical tunable film
研究领域:
材料科学
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化学工程
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DOI
PubMed
高影响因子
HIGH PERFORMANCE POLYMERS
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2021
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IF 2.161
Yunsheng Da,Jing He,Qiqi Qu,Menghan Zhu,Hua Wang,Yanyan Liu
Studies have shown that the construction of a three-dimensional interconnected filler network is an effective method to improve the thermal conductivity of the through-plane under a lower filler load. However, huge challenges still exist in building a long-range layered filler network and reducing the thermal resistance resulting from contact between fillers and matrix. In this work, boron nitride nanosheets (BNNSs) were proposed to be connected with modified cellulose nanofibers (CNFs) to obtain a long-range layered structure filler skeleton by bidirectional freezing orientation. Then epoxy resin was dipped under vacuum condition to prepare composite with thermal conductivity up to 1.43 W/mK in through-plane when filler content is 4.3 vol%, and the composite had low thermal expansion coefficient of 64.1 ppm/°C and excellent volume resistivity up to 3.7 × 1012 Ω cm at the same time.
研究领域:
材料科学
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热传导工程
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高影响因子
CEMENT & CONCRETE COMPOSITES
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2022
·
IF 9.93
Jie Zhang,Fei Huang,Yuchao Wu,Tengfei Fu,Biao Huang,Wendi Liu,Renhui Qiu
Autoclaved aerated concrete (AAC) has low density, suitable compressive strength , and excellent thermal and sound insulation capacity for building non-bearing walls. However, porous AAC blocks usually have low flexural strength and thus are prone to cracking during service life. Herein, bamboo cellulose nanofibers (BCNF) were incorporated into AAC matrix to enhance mechanical strengths . The BCNF was further modified by 3-mercaptopropyl-trimethoxysilane (KH590) to improve the interfacial bonding between BCNF and AAC matrix. Results showed that the AAC with the addition of 0.3 wt% KH590-modified BCNF had 49.2% and 20.7% higher flexural strength and compressive strength than those without BCNF, respectively. AAC slurry belongs to a pseudoplastic fluid with a yield value, which can be described by Bingham rheological model. With the increase of shear rate, the stress of AAC slurry increased and the viscosity decreased exponentially. The interfacial bonding of BCNF/AAC-matrix was characterized by FTIR , XPS , NMR, and SEM analyses. It was confirmed that the siloxane groups of KH590 react with the hydroxyl groups of BCNF, thus grafting the BCNF with hydrophobic moieties and improving their interfacial adhesion with AAC matrix. In addition, granite powders collected from stone processing mill were utilized as a main component of AAC matrix. This study provides a feasible way of utilizing renewable materials and solid waste in preparing high-performance AAC as green building materials .
研究领域:
建筑材料
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纳米复合材料
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绿色化学
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DOI
高影响因子
Food Chemistry-X
·
2024
·
IF 6.5
Jiawu Wu,Yang Gao,Huifang Shen,Song Yan,Rui Zhao,Fei Wang,Xinting Shen,Zhebin Li,Xinmiao Yao,Yao Wang
In this paper, cellulose nanofibers (CNF) were prepared from wheat bran (WB) and the structure of CNF was determined. Fourier transform infrared spectra and X-ray diffractograms showed the groups such as hydroxyl and carboxyl groups and cellulose type 1 structure possessed by CNF, respectively. Scanning electron microscopy exhibited that CNF was filamentous and intertwined. In addition, Pickering emulsions were prepared using CNF and the physicochemical properties of the emulsions were characterized. The results showed that CNF was able to increase the zeta potential and viscosity of the emulsions, thus improving the stability of the emulsions. Moreover, CNF formed a physical barrier by adsorbing at the oil-water interface and near the oil droplets and CNF dispersed in the aqueous phase formed a network structure to restrict the movement of oil droplets, thus improving the stability of the emulsions. These findings may provide some new insights for the potential applications of WB.
研究领域:
材料科学
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食品科学
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胶体与表面化学
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Mei Long,Xiaohui Yang,Tao Shi,Yinye Yang
Developing an effective and user-friendly hemostatic agent is highly desired in the treatment of hemorrhage. Inspired by the natural nanostructure and abundant hydroxyl groups of cellulose and clay minerals, we designed an aerogel (HNTs/TOCNs) composed of halloysite nanotubes (HNTs) and TEMPO-oxidized cellulose nanofibers (TOCNs) with a hierarchical porous structure for the treatment of bleeding, using a simple and environmentally friendly self-assembly method. TOCNs formed a three-dimensional porous scaffold with excellent water-holding capacity. The incorporation of HNTs enhanced the hemostatic efficiency and mechanical properties of the 3D framework. The large interlayer spaces and wide channels within the HNTs/TOCNs aerogel provided rapid passage for blood, facilitating blood concentration and offering ample room for interactions between the HNTs/TOCNs aerogel and platelets, erythrocytes, and coagulation factors, thereby promoting hemostasis. Benefiting from the natural hemostatic properties and well-designed structure, the HNTs/TOCNs aerogel displayed excellent hemostatic performance both in vitro and in vivo . Notably, the hemostatic time of HNTs/TOCNs-2 was only 74 ± 8 s, which is approximately 50 % shorter than the blank control (151 ± 20 s) in liver femoral artery injury model. This design of an HNTs/TOCNs aerogel presents a unique opportunity to enhance hemostatic efficacy by synergizing the advantages of natural materials.
研究领域:
生物医学工程
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材料科学
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止血材料研究
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DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Tiantian Dai,Yanting Liu,Dandan Rong,Meng Wang,Zhenkun Qi,Yinling Zhao,Xiandi Wang,Qing Yang,Lei Wei,Mengxiao Chen
Inspired by natural organisms, soft actuators can convert environmental stimuli into mechanical deformation, making them indispensable for applications in a variety of fields such as soft robotics. MXene, displaying exceptional attributes in conductivity, thermal efficiency, good dispersibility etc., has emerged as a preferred material for high-performance thermal actuators. However, single actuators struggle to achieve complex tasks realized by intelligent robotic systems. Herein, a bioinspired dynamic matrix is presented utilizing the developable structure of MXene-cellulose nanofibers (CNF) soft actuators. The inclusion of CNF considerably bolsters the mechanical properties of MXene. The MXene-CNF film possessed a higher working strain range (≈14%) than pure MXene film (≈2%). The designed developable structures complete the actuating movements. The sensing layer integration with the actuating layer led to an extremely low touch detection limit (0.3 kPa) and expedited actuating-feedback due to the interaction between contact charging and electrostatic induction. A responsive dynamic matrix containing 3 × 3 soft actuators, completed with a close-looped sensing-feedback function, is developed similar to the behavior of the mimosa plant. This mimosa-inspired dynamic matrix is capable of identifying the source of touch stimuli and providing immediate feedback. This research broadens the potential for enhancing adaptability and intelligence of soft robotic system.
研究领域:
材料科学
·
仿生学
·
软体机器人
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DOI
高影响因子
危险品化学品经营许可证（带存储）