Advanced Composites and Hybrid Materials最新文献

{"title":"Amorphous/crystalline heterostructured indium (III) sulfide/carbon with favorable kinetics and high capacity for lithium storage","authors":"Yinghui Xue,&nbsp;Tianjie Xu,&nbsp;Yao Guo,&nbsp;Haixiang Song,&nbsp;Yuhua Wang,&nbsp;Zhanhu Guo,&nbsp;Jianxin Li,&nbsp;Huihui Zhao,&nbsp;Xiaojing Bai,&nbsp;Changwei Lai","doi":"10.1007/s42114-024-01041-y","DOIUrl":"10.1007/s42114-024-01041-y","url":null,"abstract":"<div><p>Nanostructured metal sulfides (MSs) are considered prospective anodes for Li-ion batteries (LIBs) due to their high specific capacity and abundant raw materials on Earth. Nevertheless, the poor conductivity and volume expansion hinder their application. Here, we report the design of amorphous/crystalline indium sulfide nanotubes coated by carbon, in which MIL-68 (In) metal–organic frameworks (MOF) are used as a precursor to generate In₂S₃/carbon (In₂S₃/C) through a solvothermal process. The construction of amorphous/crystalline structure not only combines the advantages of abundant ion channels of amorphous structure, but also has high crystal conductivity and promotes ion transport. The In₂S₃/C anode of LIBs exhibits excellent performance of 835 mAh g⁻¹ at the current density of 0.5 A g⁻¹ after 500 cycles. In₂S₃/C also shows outstanding long-term performance with 717 mAh g⁻¹ at 2 A g⁻¹. The lithium storage mechanism is elucidated through kinetic analysis and ex situ X-ray photoelectron spectroscopy investigations. Further density functional theory (DFT) calculations indicate that In₂S₃/C electrodes have low adsorption energies and fast diffusion kinetics. In a word, the MOF-derived amorphous/crystalline In₂S₃/C exhibits better electrochemical performances than commercial In₂S₃. This research will inspire the exploration of MSs as well as detect potential “diamonds in the rough.”</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of molecular organic frameworks for persistent environmental pollutants treatment","authors":"Chen Yang,&nbsp;Qing Yu,&nbsp;Xiaochen Yue,&nbsp;Dalal A. Alshammari,&nbsp;Marwan Shalash,&nbsp;Hanyin Li,&nbsp;Su Shiung Lam,&nbsp;Wanxi Peng,&nbsp;Zeinhom M. El-Bahy,&nbsp;Yafeng Yang","doi":"10.1007/s42114-024-01010-5","DOIUrl":"10.1007/s42114-024-01010-5","url":null,"abstract":"<div><p>The issue of smog pollution in China is a complex challenge with wide-ranging implications for public health, economic stability, and environmental sustainability. This comprehensive review emphasizes the pressing need to address the harmful effects of smog, specifically the concerns surrounding the release of pollutants such as SO₂ and NO_x as well as the significant filtration of the fine matter and antibiotic resistance. In the context of sulfur dioxide capture, metal–organic frameworks are a fine solution because of the physical properties and excellent adsorption capacity. However, there are persistent concerns regarding MOF stability and irreversible degradation, which necessitate a focus on enhancing structural robustness. MOFs have proven to be an efficient approach to addressing NO_x emissions despite facing challenges related to external factors such as SO₂ interference. MOFs offer sustainable solutions by enabling deeper chemical interactions that combat nitrogen oxide pollutants. MOFs integration into air filters marks a significant shift toward enhancing PM_2.5 removal efficiency without increasing pressure drop. These advancements promise more effective and sustainable means to combat airborne pollutants, contributing to a healthier environment. In addition, MOFs showcase promising strategies to curb antibiotic resistance by inhibiting bacterial growth through diverse structures and advanced oxidation processes. The integration of MOFs with metal oxides, particularly silver, demonstrates exceptional sterilization rates, albeit facing challenges associated with high metal ion doses. Overall, our conclusion highlights the significant roles of MOFs and their derivatives in addressing environmental challenges. In order to fully harness the potential of MOFs for expeditiously addressing smog-related issues in China and effectively mitigating the prevalent environmental pollution, it is imperative to engage in further research and foster collaborative endeavors. These endeavors are essential for paving the way toward innovative, sustainable, and holistic solutions that can significantly enhance public health and safeguard the environment.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective electroreduction of CO2 to value-added C1 and C2 products using MOF and COF-based catalysts","authors":"Himan Dev Singh,&nbsp;Mayakannan G,&nbsp;Rajkumar Misra,&nbsp;Sujoy Sarkar,&nbsp;Debanjan Chakraborty,&nbsp;Shyamapada Nandi","doi":"10.1007/s42114-024-01016-z","DOIUrl":"10.1007/s42114-024-01016-z","url":null,"abstract":"<p>Carbon dioxide (CO₂) capture and conversion to value-added chemicals such as hydrocarbons or other energetic fuels is a potential alternate to carbon capture and sequestration in order to control the atmospheric CO₂ concentration. In this regard, electrochemical CO₂ reduction is one of the most important techniques to convert CO₂ into valuable chemicals. For this process, abundant and cost-effective catalysts are required to ensure sustainable scale-up of the process. Metal Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs), two different classes of porous crystalline solids having a lot of similarities in terms of ordered porosity, tunable pore size, thermal &amp; chemical stability and modular tailor-ability are currently being explored for developing potential electrocatalysts for CO₂ reduction reaction. However, in most of the cases, the end product is CO, a potentially toxic gas molecule that has less energetic value compared to other hydrocarbons including methanol (CH₃OH), methane (CH₄), ethanol (C₂H₅OH), ethylene (C₂H₄), and formic acid (HCOOH) etc. Also, in most of the cases, the electrochemical CO₂ reduction processes suffer from low current densities and low faradaic efficiency, limiting the scale-up of the technology. However, this has been overcome in some cases via composite formation with conducting materials including nanoparticle-based systems, conducting polymers etc. Herein we highlight the MOFs and COFs-based electrocatalysts capable of reducing CO₂ to some value-added C1 and C2 products. It will also address the challenges in the field in terms of catalyst design and the future perspective of this field. Moreover, a structure–property relationship of MOFs and COFs-based electrocatalysts for CO₂ reduction has been realized which is crucial to understanding their catalytic performances. It has been comprehended that catalysts’ efficiency is mainly dominated by three factors including high porosity/surface area, availability of active sites &amp; nature of coordination environment and electronic structure and conductivity of the catalysts. However, the possibility of functionalization and structural stability under harsh electrochemical conditions also plays an important role in their catalytic efficiency.</p>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Super gastro-resistant microcapsules based on CaCO3 nanocrystal buffered alginate/pectin composites for colon-targeted probiotic delivery: in vitro and in vivo evaluation","authors":"Yunsi Guo,&nbsp;Yi Liu,&nbsp;Kexian Chen,&nbsp;Lei Cai,&nbsp;Shan Huang,&nbsp;Yue Zhang","doi":"10.1007/s42114-024-01017-y","DOIUrl":"10.1007/s42114-024-01017-y","url":null,"abstract":"<div><p>Encapsulation of probiotics using a polysaccharide-based formulation is becoming a common strategy to enhance the viability of probiotics. However, the hydrophilic nature of polysaccharide-based encapsulants may still cause the loss of probiotic activity during harsh processing and gastric digestion. In this study, <i>Lactobacillus rhamnosus GG</i> was successfully encapsulated into alginate/pectin composite hydrogel beads using the high-efficiency vibration technology (HEVT), which were further reinforced by CaCO₃ nanocrystals as antacid and freeze-dried into microcapsules. The structure, the physicochemical, encapsulation, and digestion properties of the beads were observed. The sample composed of a mass ratio of 9:1 alginate/pectin with CaCO₃ nanocrystals showed a significantly higher viability of 10.32 Log CFU/g. A maximum of 8.49 Log CFU/g of probiotics survived after harsh gastric digestion and were control-released in the colonic fluid. The formulation with CaCO₃ nanocrystals significantly improved the survival number compared to the alginate/pectin formulation. This can be attributed to the buffering properties of CaCO₃ on the gradual dissolution process and the simultaneous dication-induced egg-box crosslinking. Additionally, after being stored for 56 days, the viable numbers of encapsulated probiotics were more than 5.52 Log CFU/g. The results of animal tests indicated that feeding encapsulated probiotics significantly altered the composition of gut microbiota in mice. Overall, the optimized formulation and fabrication route show promise for direct utilization by the food industry. This study also confirmed the significance of antacid nanocrystals in the design of polysaccharide-based oral delivery system for probiotics.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing metacomposite properties and electromagnetic interference shielding: exploring the interplay between manufacturing processability of carbon fiber elastomeric composite and permittivity/permeability effects","authors":"Roberto C. Portes,&nbsp;Braulio H. K. Lopes,&nbsp;Mirabel C. Rezende,&nbsp;Gisele Amaral-Labat,&nbsp;Maurício R. Baldan","doi":"10.1007/s42114-024-01036-9","DOIUrl":"10.1007/s42114-024-01036-9","url":null,"abstract":"<div><p>Aiming to maximize the electromagnetic performance of composite materials based on carbon fibers (CF), this work demonstrates a critical approach regarding important manufacturing parameters of composites, correlating the manipulation of the complex electric permittivity (<i>ε’</i>, <i>ε”</i>) and complex magnetic permeability (<i>µ’</i>, <i>µ”</i>), as well as the increase in the performance of electromagnetic interference (EMI) shielding effectiveness (SE). The electromagnetic characterization of composites based on polydimethylsiloxane (PDMS) reinforced with CF exhibited transitions in electromagnetic properties over the X-band frequency. The materials that are intrinsically dielectric induced the generation of an intense magnetic response and even the characteristic of metacomposite exhibiting negative <i>ε’</i> and <i>µ”</i>. The samples showed transitions from a double-positive (DPS) medium to a double-negative (DNG) medium (-<i>ε’</i> and -<i>µ”</i>) or a progression from DPS to a single-negative (SNG) medium (-<i>µ”</i>). Furthermore, some composites have also presented extremely high values of combined electric permittivity, magnetic permeability, Eddy current, and SE of 100.0 dB. The authors highlight the significant influence of composite processability, especially the insulator (PDMS) thickness, enabling the Maxwell–Wagner-Sillars effect and induction of an intense magnetic response. To predict/optimize the electromagnetic performance of composites, we also propose a computational simulation methodology using the Altair FEKO® software and correlate the Smith Chart with the material’s response.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid nanomaterials of carbon dots of silk sericin and folic acid embedded in bio-derived poly(lactic acid)/silk sericin nanogels and their incorporation with surface-porous electrospun fibers of poly(lactide-co-glycolide) for potential use as scaffolds in tissue engineering and drug delivery system","authors":"Areeya Tuanchai,&nbsp;Sasimontra Timjan,&nbsp;Nantaprapa Tuancharoensri,&nbsp;Preeyawass Phimnuan,&nbsp;Widsanusan Chartarrayawadee,&nbsp;Patnarin Worajittiphon,&nbsp;Yujia Liu,&nbsp;Gareth Michael Ross,&nbsp;Céline Viennet,&nbsp;Jarupa Viyoch,&nbsp;Huan-Tsung Chang,&nbsp;Masafumi Unno,&nbsp;Sukunya Ross","doi":"10.1007/s42114-024-01040-z","DOIUrl":"10.1007/s42114-024-01040-z","url":null,"abstract":"<div><p>Hybrid nanomaterials, consisting of carbon dots (CDs), nanogels, and electrospun nanofibers, were developed for tissue engineering and drug delivery. CDs were synthesized using <i>Bombyx mori</i> silk sericin (CD_SS) and SS mixed with folic acid (CD_SSF) and optimized through hydrothermal treatment under various conditions. Extensive analysis was conducted, and CD properties, including morphology, fluorescence, UV–Vis absorption, functional groups, size, zeta potential, and pH-dependent drug release (RhB), were investigated. Both CD_SS and CD_SSF were integrated into bio-derived poly(lactic acid)/silk sericin nanogels, which were further combined with porous electrospun nanofibers of poly(lactide-co-glycolide) (PLGA_(P)). Results revealed that CDs synthesized at 220 °C for 6 h exhibited optimal fluorescence (excitation at 320 and 360 nm), a particle size of 10–30 nm, and a zeta potential ranging from − 15.9 to 19.7 mV. CDs were composed of approximately 55% C, 23% O, and 22% N. The pH-dependent release of RhB was higher in pH 7.4 than in pH 5.0, with a significant increase within 4 h and stabilization after 8 h. Bio-derived nanogels embedded with CDs demonstrated spherical shapes (30–200 nm) and were successfully integrated with PLGA_(P) nanofibers. These nanomaterials were non-cytotoxic to normal human dermal fibroblast (NHDF) cells and promoted complete wound healing in scratch tests within 36 h. In conclusion, these designed electrospun nanofibers, incorporating bio-derived nanogels and CDs, hold promise for tissue engineering, particularly in skin tissue regeneration and controlled drug-release applications.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A multifunctional and low-cost separator for long-life aqueous Zn metal batteries","authors":"Denglei Zhu,&nbsp;Yao Guo,&nbsp;Jiangzhuo Ren,&nbsp;Medhat Ahmed Abu-Tahon,&nbsp;Salah M. El-Bahy,&nbsp;Haixiang Song,&nbsp;Yong Liu,&nbsp;Fengzhang Ren,&nbsp;Zeinhom M. El-Bahy","doi":"10.1007/s42114-024-01027-w","DOIUrl":"10.1007/s42114-024-01027-w","url":null,"abstract":"<div><p>Zinc metal batteries show great promise for energy storage applications in smart grids. However, Zn metal anodes pose significant challenges, mainly as a result of the uncontrollable growth of zinc dendrites on their surfaces, the accumulation of inert by-products, and the occurrence of the hydrogen evolution reaction. These obstacles can significantly reduce the cycling stability of the anodes. To solve these problems, we developed a boric acid-modified multifunctional cellulose separator to protect the zinc metal anode. The undissolved boric acid crystals in the separator facilitated the rapid transport of Zn²⁺ in the separator. The boric acid dissolved in the electrolyte buffered changes in pH and altered the dissolution sheath of Zn²⁺. Furthermore, it reacted with the zinc anode in the battery to form a zinc borate solid electrolyte interface layer, which served to isolate the anode from direct contact with the electrolyte. Thus, the Zn||Zn symmetric cell cycled stably for over 1500 h, whereas the Zn||MnO₂ full cell cycled stably for 4000 cycles under test conditions of 1A g⁻¹, and the capacity retention rate was 90.5%. This study introduces a novel approach to modifying zinc metal battery separators.\u0000</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additive manufacturing of continuous carbon fiber reinforced polymer composites using materials extrusion process. Mechanical properties, process parameters, fracture analysis, challenges, and future prospect. A review","authors":"Nabeel Maqsood,&nbsp;Marius Rimašauskas,&nbsp;Morteza Ghobakhloo,&nbsp;Genrik Mordas,&nbsp;Kateřina Skotnicová","doi":"10.1007/s42114-024-01035-w","DOIUrl":"10.1007/s42114-024-01035-w","url":null,"abstract":"<div><p>Additive manufacturing (AM) is an advanced and sustainable manufacturing process to make functional parts from various materials. Fused deposition modeling (FDM) is the most widely used material extrusion (ME) additive manufacturing process to create composites using continuous fiber reinforced polymers composite with improved mechanical properties and complex geometrical shapes compared to traditional manufacturing techniques. This study provides a thorough examination of the advancements and state-of-the-art developments in continuous carbon fiber (CCF) reinforced thermoplastic composite materials, focusing on their processing and fabrication through the ME method. The research delves into the critical step of pre-impregnating CCF before the manufacturing process, assessing its impact on enhancing the mechanical properties of the composites. Furthermore, the study explores how varying printing process parameters can influence the overall mechanical performance of the produced composites. The development of innovative cellular structures incorporating continuous fiber, alongside an analysis of fracture mechanics within these materials, is also presented. Additionally, this review addresses the current technological challenges that limit the broader application of these advanced materials and proposes potential future directions for research and development. This comprehensive overview aims to illuminate the significant potential of CCF reinforced thermoplastic composites in transforming manufacturing processes and to inspire further exploration in this promising field.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-performance shape-memory-polymer (SMP) composites via optimization of multidimensional graphitic-carbon fillers and development of heat-fire-and-smoke alarm devices using SMP composites","authors":"Jeet Vishwakarma,&nbsp;Shubham Jaiswal,&nbsp;Chetna Dhand,&nbsp;Reuben J. Yeo,&nbsp;Hui Ru Tan,&nbsp;Rajeev Kumar,&nbsp;Pradip Kumar,&nbsp;Narendra Singh,&nbsp;Alka Mishra,&nbsp;Ajay Naik,&nbsp;Avanish K. Srivastava,&nbsp;Neeraj Dwivedi","doi":"10.1007/s42114-024-00978-4","DOIUrl":"10.1007/s42114-024-00978-4","url":null,"abstract":"<div><p>Understanding how sp² carbons of different dimensionality engineer the shape memory polymer is crucial for fundamental science and developing next-generation technologies. Further, with modernization, widespread adoption of rechargeable lithium-ion batteries, as well as hotter, drier weather attributed to climate change, has indirectly led to a globally increasing trend of fire-related accidents. To prevent such accidents from causing large-scale destruction and casualties, the rapid detection of a fire event is extremely important. In this work, we have developed mechanically robust shape memory polyurethane (PU) composites containing graphitic-carbon fillers that exhibit good thermo-responsiveness. Reinforcement of the PU matrix by three types of graphitic-carbon fillers, namely 3D graphite, 2D multilayer graphene, and 1D multiwall carbon nanotubes, yielded 36–47% and 20–29% faster shape recovery in hot-water and hot-air environments, respectively, with minimum shape recovery time of 14 s in former and 106 s in latter environments, thermal conductivity enhancement of 15 to 55%, enhanced shape-recovery ratio (up to 100%), increased shape recovery stress by ~ 34–96%, lowered coefficient of friction by 2–3 times, and improved wear resistance with respect to pristine PU. We found that a low concentration (~ 0.02–0.2 wt%) of all three types of fillers was adequate to enhance the thermal conductivity and shape recovery ratio while maintaining the composite’s stretchability, whereas higher-filler concentrations (~ 1.0–2.0 wt%) were required to substantially increase the shape recovery speed and improve the tribological properties. Finally, PU-graphite composites were integrated into two embodiments of fire alarm device prototypes that we developed and were found to work efficiently and reliably under various simulated environments and field tests.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and performance characterization of Lyocell grade dissolving pulp composites from the lignocellulosic materials","authors":"Xiangxi Meng,&nbsp;Xiaoqian Chen,&nbsp;Chenjie Zhu,&nbsp;Yingjuan Fu,&nbsp;Wei Li,&nbsp;Feng Shen,&nbsp;Chuanling Si","doi":"10.1007/s42114-024-01031-0","DOIUrl":"10.1007/s42114-024-01031-0","url":null,"abstract":"<div><p>Lyocell fiber is known as the green fiber of the twenty-first century for its eco-friendly production and straightforward process. However, the stringent quality requirements for Lyocell grade dissolving pulp are a significant challenge, leading to the current reliance on imported pulp for the production of Lyocell fibers. In this study, corn stover and wheat straw were used as raw materials to prepare the dissolving pulp by formic acid cooking, ClO₂ delignification, H₂SO₄ acidification, and H₂O₂ bleaching; meanwhile, the poplar and pine were used as raw materials to prepare the dissolving pulp by the nucleophiles enhanced formic acid pulping and the subsequent H₂SO₄ acidification. The results showed that the dissolving pulp prepared by poplar and pine pulp reached the standard of the spinning pulp of Lyocell fiber. The optimal treatment conditions were an H₂SO₄ concentration of 5 wt%, a treatment temperature of 95 °C, a time of 240 min, and a pulp concentration of 5%. The α-cellulose content of obtained Lyocell grade dissolving pulp reached 92.2% and 92.0% and the degree of polymerization (DP) of cellulose decreased to 500 and 561 for poplar and pine pulps, respectively. The applied acid treatment significantly reduced the ash content to as low as 0.02%, and the iron ion content was less than 12 ppm. The solubility of the dissolving pulp in N-methylmorpholine-N-oxide (NMMO) was investigated, and the results indicated that the prepared pulp had good spinnability.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}