Cellulose最新文献_第8页

Cellulose and metal–organic frameworks (MOFs): synergistic strategies for developing high-performance cellulose/MOFs composites 纤维素和金属有机框架（MOFs）：开发高性能纤维素/MOFs复合材料的协同策略

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-20 DOI: 10.1007/s10570-025-06659-9

Munmun Choudhary, Asmita De, Sumit Mishra

{"title":"Cellulose and metal–organic frameworks (MOFs): synergistic strategies for developing high-performance cellulose/MOFs composites","authors":"Munmun Choudhary, Asmita De, Sumit Mishra","doi":"10.1007/s10570-025-06659-9","DOIUrl":"10.1007/s10570-025-06659-9","url":null,"abstract":"<div><p>Cellulose/Metal–organic framework (Cellulose/MOFs) composites are a class of multifunctional, sustainable materials that have recently developed in the past decade. They are either synthesized <i>in-situ</i> with cellulose and MOF precursors or integrated <i>ex-situ</i> with cellulose as a template on preformed MOFs. They exhibit ease in chemical modification, biodegradability, mechanical stability and are economically viable. MOFs are broadly utilized in different areas owing to abundant porosity, tunability, high surface area and multiple topological structures. However, their crystalline nature limits flexibility and recyclability. This can be overcome by integrating cellulose and MOFs to form composites. Cellulose/MOF composites provide exceptionally high surface area, tunable porosity, high mechanical stability and free available sites which can be customized as per requirements. These features can be further regulated by optimizing the synthesis techniques, adding functional groups and varying the composition of cellulose and MOFs. This review focuses on recent advances in the design strategies of cellulose/MOF composites and their utility in various multifunctional applications in diverse fields and so on. This review covers all aspects of cellulose-based MOFs like cellulose derivatives, synthesis, details of MOFs used till now, literature reviews and patents, fabrication techniques, forms, properties and applications in various fields like water remediation, gas adsorption, energy storage, biomedical applications and other upcoming applications along with future prospects. This review is expected to serve as a benchmark for any researcher searching for information about cellulose-based MOFs.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"6891 - 6933"},"PeriodicalIF":4.8,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation and alkali treatment of novel natural fiber from Chinese burr stalk for sustainable polymer composites 新型毛刺秸秆天然纤维的分离及碱处理

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-16 DOI: 10.1007/s10570-025-06645-1

H. Jeevan Rao, Andrey Melnikov, Elias Abou Fakhr, Harikrishnan Pulikkalparambil, Christos Spitas

{"title":"Isolation and alkali treatment of novel natural fiber from Chinese burr stalk for sustainable polymer composites","authors":"H. Jeevan Rao, Andrey Melnikov, Elias Abou Fakhr, Harikrishnan Pulikkalparambil, Christos Spitas","doi":"10.1007/s10570-025-06645-1","DOIUrl":"10.1007/s10570-025-06645-1","url":null,"abstract":"<div><p>Plant-based natural fibers are strongly recognized as a sustainable substitute for synthetic materials. Nevertheless, the quest for sustainable raw materials with outstanding characteristics is challenging, as the availability of most natural fibers is confined to regions. The <i>Chinese burr</i> (CB) stands out as a robust plant that thrives across various soils and climates. This research focuses on harvesting fibers from <i>Chinese burr</i> stalks and evaluating their attributes through compositional analysis, scanning electron microscope, energy dispersive X-ray analysis, Fourier transform infrared spectroscopy, atomic force microscopy, and thermogravimetric analysis. The CB fibers underwent an alkali treatment of 5% and 15% NaOH concentration to improve their quality, it significantly affects the mechanical properties of the CB fiber, by removing the hemicellulose, lignin, pectin, and wax substance from the surface to increasing the surface roughness that enhances the fiber matrix interfacial bonding and the micropores increase the mechanical interlocking. Also, the reduction of the fiber diameter improves the aspect ratio, it improves tensile strength, Young’s modulus, and improved strain breaking. The study found that treating CB fibers with a 5% alkali solution reduced their carbon composition by 29.83% and increased their oxygen content by 6.5% compared to the raw fibers. Additionally, this treatment stripped away amorphous elements on the fiber surface, which doubled the char yield from 7 to 14.4%. The alkali process also boosted the thermal resistance of the CB fibers (enhancing the decomposition temperature from 300 to 310 °C). It altered the weight loss characteristics (from 4.4 to 5%) relative to the raw CB fibers which decomposed at 344 °C with a weight loss of 8.6%. These experimental results underscore the potential of CB fibers as an effective substitute for manmade fibers in polymer composite applications.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7045 - 7065"},"PeriodicalIF":4.8,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The morphological regulation of nanocellulose using a hydrated deep eutectic solvent system 水合深共晶溶剂体系对纳米纤维素的形态调控

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-15 DOI: 10.1007/s10570-025-06667-9

Jie Jiang, Ze Li, Jing Luo, Juan Meng, Long Cheng, Hengfei Qin

{"title":"The morphological regulation of nanocellulose using a hydrated deep eutectic solvent system","authors":"Jie Jiang, Ze Li, Jing Luo, Juan Meng, Long Cheng, Hengfei Qin","doi":"10.1007/s10570-025-06667-9","DOIUrl":"10.1007/s10570-025-06667-9","url":null,"abstract":"<div><p>As a renewable biomass nanomaterial, nanocellulose demonstrates immense potential for applications in reinforced composites, biomedicine, and nanoelectronics. The morphology of nanocellulose directly governs its properties and performance in specific applications. In this study, a hydrated citric acid/choline chloride deep eutectic solvent (DES) system was employed to modify straw cellulose for preparing nanocellulose. The kinetic interplay between citric acid-mediated hydrolysis and esterification reactions within cellulose during the modification process was systematically investigated. The carboxylate content of the modified cellulose exhibited a linear increase to 0.78 mmol/g within the initial one hour of DES treatment, followed by a plateau phase. Progressive hydrolysis of cellulose was observed throughout the DES treatment. By precisely controlling the carboxylate content and hydrolysis extent of modified cellulose, we successfully prepared nanocellulose with morphology controllably tailored from linear nanofibers to rod-like nanocrystals. The resulting nanocellulose with varying aspect ratios exhibited predictable variations in the mechanical properties of their corresponding films and hydrogels. Furthermore, the stabilization performance of Pickering emulsions using different types of nanocellulose was comparatively analyzed. This work elucidates the mechanism by which hydrated DES treatment conditions regulate the morphology of straw nanocellulose, while also providing a critical foundation and technical framework for nanocellulose production.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7145 - 7157"},"PeriodicalIF":4.8,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Benzyl-modified hydrophobic cellulose microspheres for rhenium purification from molybdenum system 苯改性疏水纤维素微球纯化钼体系铼

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-15 DOI: 10.1007/s10570-025-06662-0

Zhaoheng Zhu, Wei Wang, Ze Wu, Yukun Huang, Long Wang, Jiang Liu

{"title":"Benzyl-modified hydrophobic cellulose microspheres for rhenium purification from molybdenum system","authors":"Zhaoheng Zhu, Wei Wang, Ze Wu, Yukun Huang, Long Wang, Jiang Liu","doi":"10.1007/s10570-025-06662-0","DOIUrl":"10.1007/s10570-025-06662-0","url":null,"abstract":"<div><p>Rhenium (Re) is a critical rare and precious element in modern industry, often associated with molybdenite deposits in nature. The pressurized ammonia leaching method for processing molybdenum (Mo) concentrates enables an efficient extraction of both Mo and Re; however, their separation in an alkaline environment is a challenging task. This study presents a hydrophobic benzyl-modified cellulose microsphere (BACM) adsorbent for the adsorption and separation of Re and Mo. As BACM is derived from cellulose-based materials, it inherits renewability, environmental friendliness, and alkaline suitability, enhancing its adsorption efficiency. By virtue of the anti-Hofmeister effect, the BACM adsorbent exhibits enhanced adsorption performance, efficiently separating Re(VII) and Mo(VI) across a pH range of 6–12 with a maximum separation factor of 1.5 × 10<sup>3</sup> and an adsorption capacity for Re(VII) as high as 99.97 mg/g. The adsorption mechanism involves specific anion trapping and ion exchange within the hydrophobic microenvironment. Column adsorption experiments confirm that BACM can effectively separate and enrich Re(VII) and Mo(VI) from real Mo concentrate alkaline leach solutions, demonstrating its applicability in this context.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7335 - 7350"},"PeriodicalIF":4.8,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytic acid and CaCl2 co-treated rice straw fibers/unsaturated polyester composites with excellent flame retardant, water resistant and dimensional stability properties 植酸和CaCl2共处理稻草纤维/不饱和聚酯复合材料具有优异的阻燃、耐水性和尺寸稳定性

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-14 DOI: 10.1007/s10570-025-06655-z

Feiyang Zhao, Huijuan Liu, Yilin Jin, Hongfu Ru, Longfei Wang, Shuangfei Xiang, Hao Li, Shujun Zhao, Feiya Fu, Ing. Duncan Camilleri, Xiangdong Liu

{"title":"Phytic acid and CaCl2 co-treated rice straw fibers/unsaturated polyester composites with excellent flame retardant, water resistant and dimensional stability properties","authors":"Feiyang Zhao, Huijuan Liu, Yilin Jin, Hongfu Ru, Longfei Wang, Shuangfei Xiang, Hao Li, Shujun Zhao, Feiya Fu, Ing. Duncan Camilleri, Xiangdong Liu","doi":"10.1007/s10570-025-06655-z","DOIUrl":"10.1007/s10570-025-06655-z","url":null,"abstract":"<div><p>The application range of rice straw (RS) is limited by its poor flame and water resistance. It’s still a great challenge to endow RS fibers with excellent flame and water resistance properties without compromising the intrinsic mechanical properties. Here, a simple surface treatment strategy of RS fibers via co-treatment with phytic acid (PA) and calcium chloride (CaCl<sub>2</sub>) was developed. First, PA was grafted onto RS fibers by esterification reaction. Then RS fibers were ionically crosslinked by CaCl<sub>2</sub> treatment. Modified RS fibers (PCRS) were then mixed with unsaturated polyester resin (UPR) to produce PCRS/UPR composites (PCRU). Benefiting from Ca<sup>2+</sup> complexes via the ionic crosslinking between Ca<sup>2+</sup> and –P (=O)–OH of the PA, –OH of the RS fibers, PCRU demonstrates enhanced tensile strength (12.04 MPa), good waterproofing capability, and flame-retardant performance. PCRU exhibites low water absorption rate (5.90%) and dimensional stability (thickness deformation less than 1.76%) after 168 h of water immersion. In addition, the limiting oxygen index and the total heat release of the prepared PCRU composites are 29.7 and 11.3 kJ/g, which reach the standard for flame retardant materials. Therefore, this study provides a simple and green pretreatment strategy of rice straw fiber for the applications in flame retardant, low water absorption, and dimensionally stable composites.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7207 - 7222"},"PeriodicalIF":4.8,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Packing arrangements of cellulose I allomorphs and cell wall thickness: key factors influencing the tensile strength of banana fibres 影响香蕉纤维抗拉强度的关键因素：纤维素异型和细胞壁厚度的排列方式

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-12 DOI: 10.1007/s10570-025-06660-2

B. Jhurree-Dussoruth, H. Ramasawmy, J. Chummun, D. Puchooa

{"title":"Packing arrangements of cellulose I allomorphs and cell wall thickness: key factors influencing the tensile strength of banana fibres","authors":"B. Jhurree-Dussoruth, H. Ramasawmy, J. Chummun, D. Puchooa","doi":"10.1007/s10570-025-06660-2","DOIUrl":"10.1007/s10570-025-06660-2","url":null,"abstract":"<div><p>Despite numerous studies on the tensile properties of banana fibres, no comprehensive investigation has yet been reported into the factors responsible for the significant variations in tensile strength (TS) across different banana varieties. To address this research gap, the TS of fibres from eight varieties representing five diverse genomic groups (BB, AAA, ABB, ABB, AAAA) was measured, and various test methods were applied to critically study the variations. Physico-chemical analyses included component analysis, linear density, Fourier-transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy for both fibre surface and cross-sectional morphologies. Additionally, X-ray diffraction was conducted to investigate the cellulose-related factors, including cellulose crystallinity, crystallite size and d-spacing. The TS varied significantly from 61 to 367 MPa; however, the relative proportions of ‘A’ and ‘B’ genomes, cellulose content, crystallite size and cellulose crystallinity did not directly support this trend. In contrast, the d-spacing values strongly negatively corroborated with TS (r = − 0.75), revealing that the variations in the orderly arrangement of crystalline cellulose I allomorphs are crucial in determining TS of banana fibres. Moreover, the fibre microstructure, particularly cell wall thickness and well-defined middle lamella, also positively influenced TS, but only when allomorphs with denser structural packing arrangements predominated. Hence, this suggests a complex interaction between different cellulose I allomorphs and fibre microstructural features, which is further influenced by the predominance of genome ‘A’ in the banana A/B hybrids. The identification of key factors determining TS of banana fibres, marks a significant advancement in addressing this knowledge gap.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"6965 - 6986"},"PeriodicalIF":4.8,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Double-shell microcapsules with enhanced thermal stability and low leakage for thermochromic and thermal energy storage textiles 用于热致变色和热能储存纺织品的双壳微胶囊，具有增强的热稳定性和低泄漏

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-11 DOI: 10.1007/s10570-025-06664-y

Müyesser Selda Tözüm

{"title":"Double-shell microcapsules with enhanced thermal stability and low leakage for thermochromic and thermal energy storage textiles","authors":"Müyesser Selda Tözüm","doi":"10.1007/s10570-025-06664-y","DOIUrl":"10.1007/s10570-025-06664-y","url":null,"abstract":"<div><p>In study, a novel type of thermochromic phase change system (TPCS) @polystyrene (PS) @silica (TPCS@PS@silica) double-shell microcapsule was designed by radical polymerization of styrene monomer and hydrolysis-condensation reaction of tetraethyl orthosilicate (TEOS). In the preparation of double-shell microcapsules, TPCS, composed of fluorane dye, bisphenol-A (BPA), and 1-tetradecanol (TD), was used as the core material. Polystyrene acted as the first organic shell to encapsulate the TPCS while silica acted as the second inorganic shell on the surface of the polystyrene shell. The aim of preparing double-shell microcapsules is to enhance the protection of TPCS, which are highly sensitive to environmental factors, and to improve the thermal stability and leakage resistance of the microcapsules. The thermal stability of the TPCS@PS@silica double-shell microcapsules was higher than that of the TPCS@PS single-shell microcapsules. Besides, the leakage rate of TPCS reduced from 4.1 to 1.8% after the addition of a second silica shell, compared to the use of a single polystyrene shell. TPCS@PS@silica double-shell microcapsules had an enthalpy of 123.6 J/g and exhibited a reversible color change from pink to white depending on temperature variation. The cotton fabrics treated with TPCS@PS@silica double-shell microcapsules using the bath exhaustion and pad-dry-cure processes not only showed thermochromic but also demonstrated thermoregulation performance. SEM images, photographs and colorimetric data showed that the fabrics treated by bath exhaustion process exhibited superior performance in terms of thermochromic and wash resistance compared to the pad-dry-cure process. The addition of microcapsules significantly reduced the air permeability of fabrics, but did not affect their bending resistance and tear strength.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7445 - 7464"},"PeriodicalIF":4.8,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solid superacid SO42−/TiO2/Al2O3 with unique “Ecological Infiltration System” for efficient catalytic synthesis of cellulose triacetate 固体超强酸SO42−/TiO2/Al2O3具有独特的“生态渗透系统”，用于高效催化合成三醋酸纤维素

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-11 DOI: 10.1007/s10570-025-06657-x

Hao Dong, Dongming Wang, Chen Wang, Shuo Qi, Mingxing Shi, Guolin Tong, Jie Wang, Binbin Bian

{"title":"Solid superacid SO42−/TiO2/Al2O3 with unique “Ecological Infiltration System” for efficient catalytic synthesis of cellulose triacetate","authors":"Hao Dong, Dongming Wang, Chen Wang, Shuo Qi, Mingxing Shi, Guolin Tong, Jie Wang, Binbin Bian","doi":"10.1007/s10570-025-06657-x","DOIUrl":"10.1007/s10570-025-06657-x","url":null,"abstract":"<div><p>Cellulose triacetate is a vital derivative of cellulose, which normally adopts H<sub>2</sub>SO<sub>4</sub> as catalysts, facing huge challenges associated with cellulose degradation and acid wastewater disposal. SO<sub>4</sub><sup>2−</sup>/M<sub><i>x</i></sub>O<sub><i>y</i></sub> has been proven to have higher catalytic performance in cellulose acetylation. However, the obvious loss of sulfur species can induce serious catalyst deactivation. Herein, an innovative solid superacid SO<sub>4</sub><sup>2−</sup>/TiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> successfully fabricated by carrier-supporting strategy can realize the effective synthesis of cellulose triacetate (CTA). Research displayed that compared with SO<sub>4</sub><sup>2−</sup>/TiO<sub>2</sub>, SO<sub>4</sub><sup>2−</sup>/TiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> presented loose and small irregular nanoparticles with much rough surface morphology. Meanwhile, the incorporation of Al<sub>2</sub>O<sub>3</sub> enhanced the overall acidic content by forming new Al-O = S bonds and providing empty places for accepting electrons acting as Lewis acids. The highly exposed active surface area along with copious and stable total acid sites may accelerate solution penetration and provide lasting high catalytic efficiency. When used for CTA production, SO<sub>4</sub><sup>2−</sup>/TiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> acquired a maximum degree of substitution (DS) of 2.97. Notably, it exhibited superior cyclic stability and only displayed a 1.7% DS drop after 5 CTA synthesis. Moreover, the resultant CTAs indicated splendid homogeneity, showing huge practical application potential. The finding depicts that sustainable SO<sub>4</sub><sup>2−</sup>/TiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> may enable the use of alternative cellulose sources for the production of high-quality CTA.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7029 - 7044"},"PeriodicalIF":4.8,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D printing with cellulose nanofibrils enabled by microwave irradiation 利用微波照射实现的纤维素纳米纤维3D打印

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-10 DOI: 10.1007/s10570-025-06651-3

Md Musfiqur Rahman, Islam Hafez, Mehdi Tajvidi

{"title":"3D printing with cellulose nanofibrils enabled by microwave irradiation","authors":"Md Musfiqur Rahman, Islam Hafez, Mehdi Tajvidi","doi":"10.1007/s10570-025-06651-3","DOIUrl":"10.1007/s10570-025-06651-3","url":null,"abstract":"<div><p>Cellulose nanofibrils (CNFs) offer a sustainable alternative for 3D printing applications when compared to petroleum-based polymers. However, the significant amount of water in CNF suspension limits their application due to the need for lengthy and energy-intensive drying technologies. This study presents a novel process for the 3D printing of CNFs using urea and carboxymethyl cellulose (CMC) as additives enabled by microwave irradiation. Additionally, this process eliminates the need for freeze-drying or conventional oven drying methods. Two multilayer geometries were constructed: octagonal shells and cuboids with 100% infill. The 3D-printed paste was first solidified by freezing followed by immediate thawing through microwave irradiation. The amplitude-sweep and zeta potential analyses revealed information on the effect of urea and CMC on the printability of CNFs. The compressive testing results indicated that structures containing 2 pph (Parts per hundred) CMC exhibited higher compressive strength than the structures with 1 pph CMC, regardless of the urea concentration. Additionally, the high CMC content enhanced the interfacial adhesion between the layers. In addition, a thorough investigation of the chemical interactions among CNF, urea, and CMC was conducted using Fourier-transform infrared spectroscopy (FTIR). This distinct approach for 3D printing, based on the use of CNFs and microwave irradiation, provides an economically viable option to promote sustainable nanomaterials in the field of additive manufacturing and paves the way for further development.</p></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 13","pages":"7735 - 7752"},"PeriodicalIF":4.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water superabsorbent composites of dialdehyde cellulose from various cellulosic sources: a comparative study 不同纤维素来源的双醛纤维素的高吸水性复合材料：比较研究

IF 4.8 2区工程技术

Cellulose Pub Date : 2025-07-10 DOI: 10.1007/s10570-025-06652-2

Youssef Chaab, Hicham Aitbella, Ahmed Yassine Boussif, Mohammed Bezbiz, Meriem Latifi, Larbi Belachemi, Hicham Ben Youcef, Céline Moreau, Bernard Cathala, Hamid Kaddami

{"title":"Water superabsorbent composites of dialdehyde cellulose from various cellulosic sources: a comparative study","authors":"Youssef Chaab, Hicham Aitbella, Ahmed Yassine Boussif, Mohammed Bezbiz, Meriem Latifi, Larbi Belachemi, Hicham Ben Youcef, Céline Moreau, Bernard Cathala, Hamid Kaddami","doi":"10.1007/s10570-025-06652-2","DOIUrl":"10.1007/s10570-025-06652-2","url":null,"abstract":"<div><p>In the context of global water shortages, there is an urgent need to implement effective strategies for the management of water resources. The objective of our research is to synthesize superabsorbent polymers to efficiently utilize water resources in agriculture, with a particular focus on the impact of cellulose sources and properties on absorption capacity. A hybrid superabsorbant polymer (SAP) hydrogel was prepared by combining 5% (wt) cellulose pulps or their dialdehyde cellulose (DACs) with a poly (acrylic co-itaconic) copolymer acid through radical chain polymerization. The crosslinker used was <i>N</i>,<i>N</i>-methylene-bis-acrylamide (MBA), while potassium persulfate (KPS) was employed as the polymerization initiator. The bleached pulps, DACs, and superabsorbent composites (SAPs) hydrogels were characterized by FTIR, XRD, SEM, and TGA. The results showed that an increase in the periodate equivalent relative to the glucose residue resulted in an increase in aldehyde content and a decrease in crystallinity, accompanied by a change in the morphological properties of the obtained oxidized fibers. Moreover, SAPs containing dialdehyde cellulose exhibited greater porosity compared to SAPs without DACs. The swelling capacity of the hydrogels was determined using the tea bag method. The SAPs of DAC extracted from banana fibers demonstrated a higher water absorption capacity of 1300 g g<sup>−1</sup> compared to other SAPs due to the specific hydrophilic properties of the DAC derived from banana, especially its lower crystalline index. </p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7279 - 7297"},"PeriodicalIF":4.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0