INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Wei Liu,Kun Liu,Yaxuan Wang,Qingyi Lin,Jialin Liu,Haishun Du,Bo Pang,Chuanling Si
Cellulose nanofibers (CNFs) have been shown to assemble at oil/water interface and act as Pickering emulsions stabilizers. Developing a simple approach to fabricate CNFs with tunable surface properties and elucidating the influence of the surface properties of the CNFs on their emulsifying performance are of great significance and highly demanded. Herein, a facile approach, namely FeCl 3 -catalyzed formic acid hydrolysis in combination with high pressure homogenization was reported to produce CNFs using industrial Kraft pulp as raw materials. The surface properties, especially the surface wettability of the CNFs could be easily adjusted by changing the hydrolysis time. Additionally, the emulsifying performance of the CNFs and the stability of CNF-stabilized Pickering emulsions were also evaluated. The obtained CNF-stabilized Pickering emulsions demonstrated great stability under various ionic strengths ranging from 0 to 1 M NaCl and high temperature of 80 °C. This work would greatly improve the possibility of sustainable production of CNFs for practical emulsions.
研究领域:
材料科学
·
化学工程
·
环境科学
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2018
·Vol. 25
·期 12
·7065-7078
·
IF 3.809
Liu Xiuyu,Jiang Yan,Qin Chengrong,Yang Shuang,Song Xueping,Wang Shuangfei,Li Kecheng
Abstract Bagasse fibers are smaller and have more hemicellulose than softwood fibers, which is expected to require less mechanical energy in cellulose nanofiber production as small size and hemicellulose benefit the disintegration of fibrils during a mechanical process. Both bagasse fibers and softwood fibers were used in this investigation for producing nanofibers with enzyme pretreatment followed by mechanical grinding. Results showed that nanofibers from bagasse had more uniform diameters about 9 nm, and the films made from them were more transparent. Grinding energy consumption of bagasse fibers was significantly lower than softwood, by 7.31%, and enzyme pretreatment further improved the energy efficiency, by 59.71%, and the yield of nanofibers, by 30.57%. The mechanical strength and thermal stability of nanofiber films from bagasse fibers were similar with that from softwood fibers. The results support the idea that bagasse, a waste or byproduct from sugar industry can be a promising alternative for nanofiber production.
Graphical abstract
研究领域:
生物材料学
·
纳米科技
·
制浆造纸工程
·
可再生资源利用
·
食品与农业废弃物处理
✓ 已验证
DOI
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Guangshun Li,Tong Wang,Qing Wei,Zhigang Jin,Huipei Han,Huixia Zhu,Xiaojing Ma
A novel acidic sophorolipid-enhanced cellulose nanofiber-based coconut wax Pickering emulsion (ASL-CCPE) using cellulose nanofibers (CNF) as a stabilizer, lactonic sophorolipids (LSL) as an antimicrobial agent, and acidic sophorolipids (ASL) as a co-stabilizer were developed. Through optimization of the oil phase type, oil-to-water ratio, and ASL content, the emulsion exhibited shear-thinning behavior and elastic gel characteristics, making it suitable for coating applications. After 182 days of storage at room temperature, the emulsion's droplet size remained uniform, with no significant flocculation observed. Compared to CCPE, ASL-CCPE exhibited reduced surface tension and formed a more uniform, dense, and washable coating. Cherry tomatoes coated with ASL-CDPE remained fresh for at least 12 days at room temperature. Furthermore, ASL-CCPE treatment resulted in a 5.10 % reduction in weight loss and a 45.83 % increase in vitamin C content even after 15 days of storage. Additionally, the inclusion of LSL significantly inhibited microbial growth, thus reducing decay. This green, safe, and effective emulsion offers a promising, environmentally friendly approach for fruit and vegetable preservation.
研究领域:
食品科学
·
材料科学
·
微生物学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED THERMAL ENGINEERING
·
2025
·
IF 6.9
Zeyang Kang,Shuo Qiu,Qingyu Lv,Jun Yang,Li Zhan,Yong Li,Xiangyang Liu,Maogang He
Managing thermal energy effectively in buildings is vital for sustainability, particularly in extremely cold climates. Herein, we present an innovative approach to building insulation by leveraging cellulose nanofiber (CNF)/black phosphorus (BP) aerogels with uniquely aligned xylem-like porous structures. This study posits that the synergistic interplay between CNF and BP significantly enhances thermal insulation, photothermal conversion, and flame-retardant capabilities, offering a cutting-edge solution for advanced thermal management. Using a strategic combination of polyethyleneimine and 3-glycidoxypropyltrimethoxysilane as co-additives, lightweight CNF sponge-like aerogels were fabricated via freeze-drying and post-crosslinking techniques. These aerogels achieved exceptional thermal insulation with a remarkably low thermal conductivity of 0.067 W/(m·K). Additionally, they demonstrated superior photothermal performance, reaching 84 °C within just 300 s under one-sun illumination, effectively maintaining a stable microclimate even at −5 °C by combining photothermal conversion and insulation effects. The flame-retardant properties of the CNF/BP aerogels were equally impressive, with total heat release reduced by 71 % compared to conventional crosslinked CNF aerogels. This is attributed to the robust porous char formed through phosphoric acid crosslinking with internal carbon chains. These multifunctional CNF/BP aerogels not only redefine the boundaries of thermal management but also establish a promising pathway for next-generation thermal protection materials.
研究领域:
材料科学
·
建筑技术
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMER SCIENCE
·
2024
·
IF 3.9
Lihao Shi,Wenjun Yu,Enfu Wang,Weisheng Han,Yu Miao,Yipeng Liang,Yifan Chen,Wenbiao Zhang,Ran Zhang,Jingda Huang
In this work, we used cellulose nanofibers (CNF) as the skeleton, Fe 3 O 4 @ZnO composite particles as magnetic synergist particles, 3-(2-aminoethylamino) propyltrimethoxysilane (AS) and trimethoxy(octyl)silane (OTMS) as water-based hydrophobic modifiers to prepare magnetic and superhydrophobic cellulose nanofibers based-aerogel with low density and intricate three-dimensional structure. Fe 3 O 4 @ZnO confers magnetic properties (3.82 emu/g) and exceptional thermal stability (water contact angle of 150.1° at 200 °C) to the system, while the combination with OTMS/AS endows the system superhydrophobic (157.5°) and excellent mechanical properties (stress of 96.95 kPa at 80% strain). It is worth noting that in the process of modifying the system with OTMS/AS, no organic solvents and acidic substances are used in the solution. Benefiting from their synergies, the system demonstrates a notable oil absorption capacity (12.31–41.91 g/g) and outstanding oil selectivity (exceeding 90%), driven by gravity alone. Interestingly, this system, marked by its cost-effectiveness, simplicity, eco-friendliness, and heightened efficiency, holds promising prospects for diverse applications in different oil–water separation behavior and purifying industrial oil wastewater, as well as oil flooding incidents. Graphical
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
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
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Ming Zeng,Qionghao Xu,Jiangang Yu
Nanocelluloses (NCs)-based aerogels with hierarchical microarchitecture are highly sought after for their extraordinarily thermal insulation and adsorption properties. Nevertheless, their intrinsic flammability, complex manufacturing processes, and inadequate mechanical characteristics substantially restrict their extensive practical applications. Herein, a Pickering emulsion templated sequential reaction strategy is employed to fabricate elastic NCs-based aerogels with hierarchically porous structures. The pivotal aspect of this synthesis resides in the Pickering emulsion phases, facilitating the in-situ construction of a polyvinyltrimethoxysilane (PVTMS) decorated framework. The resultant aerogels feature a low density and exhibit exceptional resilience. The material also displays exceptional anisotropic thermal insulating properties, with a peak value of 11.5 mW·m −1 ·K −1 along the axial direction and a value ten times greater, reaching 115.2 mW·m −1 ·K −1 , along the radial direction. Such a preparation method for the hybrid aerogels will offer noval perspectives in the field of advanced materials for multifunctional applications.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Mengxia Wang,Xiaran Miao,Feng Guo,Zhiqing Deng,Fenggang Bian,Tiqiao Xiao,Chunhai Chen
The use of renewable bioresources and their nanoforms in developing edible coating materials is considered a promising approach for preserving food freshness. Herein, cellulose nanofibers (CNF) with different morphologies were combined with gelatin to prepare composite preservation film following by brushing over the surface of cherry tomatoes as an edible coating. The gelatin-based composite film containing 0.3 % CNF20 (GC2–0.3) exhibited the lowest water vapor permeability (WVP, 1.97 × 10 −4 barrer), lower oxygen permeability (OP, 2.54 × 10 −2 barrer), higher transparency (Tr = 85.28 %) and excellent mechanical properties (σ = 47.45 MPa, E = 1.84 GPa). When coated on cherry tomatoes, it maintained good luster and freshness, significantly reducing the water loss of cherry tomatoes. The weight loss was only 16 % after 14 days of storage at 25 °C and 30 % humidity, compared to >30 % for the uncoated cherry tomatoes. This work provides a viable strategy for developing sustainable, green fresh-keeping materials that can prolong the storage time of the putrescible food.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Wenbin Zhang,Xiangsheng Han,Zhiqiang Qi,Hao Tan,Keyan Yang,Hongzhen Cai
Lignin-containing cellulose nanofibers (LCNFs) with promising sustainability and multiple functionalities are highly in demand while still limited by the high energy consumption and potential environment disruption in preparation. In this work, the super-base system (dimethyl sulfoxide/potassium hydroxide, DMSO/KOH) was firstly employed as pseudosolvent to swell melon vine powder by partially remove some non-cellulose components (such as extraction, lignin and ash) in plant cell wall, and facilitate the following production of LCNFs. Due to the strong nucleophilicity of DMSO/KOH, universal swollen effects toward corn husk , poplar, bagasse , rice husk, and cotton stalk were achieved, and the LCNFs from them were also successfully obtained (with yields of ∼78.75%, 55.60%, 51.33%, 46.13%, and 53.90%, respectively). Besides, this method resulted in high lignin content among LCNFs (∼19.54%), which endowed the resultant membranes with superior mechanical strength, thermal stability, and dye rejection performance (a rejection rate of ∼92.7%, and a flux of 15.16 L•m -2 •h -1 •bar -1 toward methyl violet at 250 ppm). Thus, this research paves a simple, efficient, and universal way to prepare LCNFs from various biomass.
研究领域:
材料科学
·
环境科学
·
生物质工程
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2019
·Vol. 12
·期 2
·322
·
IF 2.972
Ren’ai Li,Kaili Zhang,Guangxue Chen
Conductive paper has the advantages of being low-cost, lightweight, disposable, flexible, and foldable, giving it promising potential in future electronics. However, mainstream conductive papers are opaque and rigid, which seriously affect the wide application of conductive paper. In this paper, we demonstrate a highly transparent, flexible, and conductive paper, fabricated by mixing cellulose nanofibers (CNFs) with silver nanowires (AgNWs) and then plasticizing with choline chloride/urea solvent. The as-prepared CNF/AgNW paper showed high transparency (~90% transmittance) and flexibility (~27% strain), and low sheet resistance (56 Ω/sq). Moreover, the resistance change of CNF/AgNW paper increased only ~1.1% after 3000 bending−unbending cycles under a 150° large angle, implying a long working life and stability. In view of this, our methodology has the potential to open a new powerful route for fabrication of paper-based green electronics.Keywords:conductive paper;cellulose nanofiber;silver nanowires;choline chloride/urea
研究领域:
材料科学
·
纳米技术
·
电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 4
·2584-2596
·
IF 4.682
Jiao Enxiang,Wu Kun,Liu Yingchun,Zhang Hangzhen,Zheng Haoting,Xu Chang-an,Shi Jun,Lu Mangeng
The development of materials with efficient heat dissipation capabilities and remarkable mechanical properties is essential for high-power integrated electronic devices and flexible smart devices. Herein, a flexible cellulose nanofibers (CNF)/nanodiamond (ND)/MXene (CNM) composite film with typical nacre-like structure is fabricated using a facile vacuum-assisted filtration approach. The composite film exhibits high thermal conductivity of 17.43 W m −1 K −1 at the thickness of 21 μm, which enhances 663% compared with CNF film. This is mainly due to the bridging effect of ND and the favorable orientation of MXene nanosheets. In addition, nacre-like structure and strong hydrogen bonding between MXene and CNF endow satisfactory mechanical properties (89.14 ± 3.61 MPa). Moreover, it is worth to note that the film exhibits improved electrical insulation (1.63 × 10 6 Ω cm) on account of the intervene of the insulating ND block the conductive path formed by MXene. Therefore, the CNM composite films provide a feasible choice of thermal management components for high-power flexible devices.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Wenliang Wang,Xingjin Zhao,Yuanyuan Xia,Yanyi Xue,Jinbao Cheng,Feifei Yang,Yong Cui,Xinchun Chen,Ruanyu Wang,Xinping Li
A new type of bio-amine-response colorimetric film with excellent flexibility and biodegradability was fabricated by the main components of sugarcane, including sugarcane skin anthocyanin (SSA), bagasse cellulose fibers (CF), and cellulose nanofibers (CNF). Benefiting from the rich hydroxyl groups and large specific surface area of CNF, the sample of adding 10 wt% CNF in CF (CF/CNF 10 /SSA) presented good mechanical properties (33 Mpa), reusability (10 cycles), excellent color change (ΔE＞5), and excellent antioxidant properties (the free radical scavenging rate of ABTS : 86%). Furthermore, the film had good water resistance (water contact angle only decreases about 20° after 60 s), color stability up to 28 days, and rapid response to ammonia (1–2 s). Thus, CF/CNF 10 /SSA was successfully used as a low-cost, inoxidizable, and pH/NH 3 responsive smart tag to monitor the freshness of seafood in real-time, achieving the high-value utilization of sugarcane waste components.
研究领域:
食品科学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）