Composites Part B: Engineering最新文献_第5页

Unveiling the effects of laser scanning direction and processing parameters on heat transfer and ablation behavior of CFRP

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-14 DOI: 10.1016/j.compositesb.2025.112407

Hong An , Yongfeng Qian , Minqiang Jiang , Hu Huang , Jiwang Yan

{"title":"Unveiling the effects of laser scanning direction and processing parameters on heat transfer and ablation behavior of CFRP","authors":"Hong An , Yongfeng Qian , Minqiang Jiang , Hu Huang , Jiwang Yan","doi":"10.1016/j.compositesb.2025.112407","DOIUrl":"10.1016/j.compositesb.2025.112407","url":null,"abstract":"<div><div>Carbon fiber reinforced plastic (CFRP) has found extensive applications in aerospace, automotive, and biomedical fields owing to its exceptional mechanical properties. Nanosecond pulsed laser processing offers a promising avenue for treating CFRP laminates; however, the inevitable thermal damage during processing may significantly degrade the surface integrity. An in-depth analysis of the correlation between ablation characteristics of CFRP and laser processing conditions is essential for understanding the complex heat transfer and ablation mechanisms during laser processing of CFRP and is a prerequisite for improved control of thermal damage. This study examines the thermal transfer and ablation behavior of CFRP subjected to nanosecond laser ablation, focusing on how laser scanning direction and processing parameters influence the surface characteristics of the laser-ablated regions. The results indicate that the width of the heat-affected zone (HAZ) increases with increasing laser power, decreasing scanning speed, and decreasing scanning pitch. Moreover, the scanning direction plays a crucial role in determining the HAZ characteristics and material removal rate. Processing CFRP along the 0° direction relative to the carbon fiber orientation yields higher efficiency and less thermal damage compared to the 90° direction. Chemical composition analysis reveals that laser ablation induces a structural transformation in carbon fibers, shifting from sp<sup>2</sup> graphite-like lattice orbitals to sp<sup>3</sup> hybird orbitals. Numerical simulations further elucidate the heat transfer and ablation mechanisms under various experimental conditions. This study contributes to a deeper understanding of the laser-CFRP interaction, facilitating the development of high-integrity CFRP surfaces and broadening their practical applications across multiple industries.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"298 ","pages":"Article 112407"},"PeriodicalIF":12.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manufacturing a 3D stitched highly unitized PRSEUS-based conformal propellant tank: Lessons learned

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-14 DOI: 10.1016/j.compositesb.2025.112403

Shuvam Saha , Myles L. Baker , Rani W. Sullivan

{"title":"Manufacturing a 3D stitched highly unitized PRSEUS-based conformal propellant tank: Lessons learned","authors":"Shuvam Saha , Myles L. Baker , Rani W. Sullivan","doi":"10.1016/j.compositesb.2025.112403","DOIUrl":"10.1016/j.compositesb.2025.112403","url":null,"abstract":"<div><div>Lightweight cryogenic propellant tanks are critical components of space launch systems and next-generation supersonic or hypersonic aircraft using liquid hydrogen or liquid oxygen as propellants. In recent years, NASA has made significant efforts to develop reusable cryogenic propellant tanks like those developed during the X-33/VentureStar program. However, mechanical/bolted connections, penetrations and joints in the tank wall, and gaps/holes were some of the major causes of the premature failure of the X-33 tank. This study demonstrates the manufacturability of a novel and more efficient conformal tank by using advanced 3D stitched composite technology and fabrication methods. Through-thickness stitching enables the design of conformal tanks with uninterrupted load paths between skin, stringer, and frame elements by maintaining structural continuity. A one-third scale externally stiffened carbon/epoxy composite tank was manufactured using the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) panel construction. Complex preform assemblies were selectively stitched and built without the need for exacting tolerances and accurately net molded using resin infusion in a single oven-cure operation using high-precision outer mold line tooling. The resulting structure is a one-piece unitized assembly with seamless co-cured interfaces. The details of tool design, preform construction, stitching procedures, and infusion methodologies are described in the paper.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"299 ","pages":"Article 112403"},"PeriodicalIF":12.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting the interlaminar toughening capacity of PBO microfiber for carbon fiber laminates through the interface regulation of interleaving layer

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-14 DOI: 10.1016/j.compositesb.2025.112404

Shaokang Guo , Yongxiang Ji , Tingting Wang , Bo Song

{"title":"Boosting the interlaminar toughening capacity of PBO microfiber for carbon fiber laminates through the interface regulation of interleaving layer","authors":"Shaokang Guo , Yongxiang Ji , Tingting Wang , Bo Song","doi":"10.1016/j.compositesb.2025.112404","DOIUrl":"10.1016/j.compositesb.2025.112404","url":null,"abstract":"<div><div>Poor interfacial properties limit the toughening effect of the high-performance poly(<em>p</em>-phenylene benzobisoxazole) (PBO) microfiber for the carbon fiber laminate. Herein, a rigid-flexible transition interface was developed on the PBO fiber surface to enhance its interfacial adhesion and improve the interlaminar toughening effect for carbon fiber laminates. The rigid-flexible structure also provides a smooth modulus gradient for the interfacial load transfer to effectively utilize the excellent mechanical properties of the PBO fiber and dissipate more fracture energy. This allows the Mode I failure mode to change from stick-slip failure to stable crack propagation by triggering the toughening mechanism of fiber debonding and bridging, crack deflection, and sub-crack evolution. The <span><math><mrow><msubsup><mi>G</mi><mrow><mi>I</mi><mo>−</mo><mi>C</mi></mrow><mrow><mi>p</mi><mi>r</mi><mi>o</mi><mi>p</mi></mrow></msubsup></mrow></math></span> value increases from 238.3 to 496.5 J m<sup>−2</sup>. In addition, the Mode II interlaminar fracture changes from interfacial failure to cohesive failure, dissipating additional energy through fracture behavior such as buffer layer damage, crack deflection, and sub-crack development. Accordingly, the <span><math><mrow><msub><mi>G</mi><mrow><mi>I</mi><mi>I</mi><mo>−</mo><mi>C</mi></mrow></msub></mrow></math></span> value increases from 1509.7 to 3336.2 J m<sup>−2</sup>. The interfacial regulation strategy developed for the PBO fiber opens a new avenue for the interlaminar toughening of the carbon fiber laminate using smooth and inert organic fibers.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"299 ","pages":"Article 112404"},"PeriodicalIF":12.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SrCO3@PCL/PDA composite scaffold promote osteoporotic bone regeneration through immune regulation

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-14 DOI: 10.1016/j.compositesb.2025.112406

Jianhang Du , Xiaogang Bao , Jing Wen , Chen Tang , Chenxu Wang , Changgui Shi , Chengqing Yi , Guohua Xu , Dejian Li

{"title":"SrCO3@PCL/PDA composite scaffold promote osteoporotic bone regeneration through immune regulation","authors":"Jianhang Du , Xiaogang Bao , Jing Wen , Chen Tang , Chenxu Wang , Changgui Shi , Chengqing Yi , Guohua Xu , Dejian Li","doi":"10.1016/j.compositesb.2025.112406","DOIUrl":"10.1016/j.compositesb.2025.112406","url":null,"abstract":"<div><div>Bone defects caused by osteoporosis present a significant clinical challenge. The primary obstacles to osteoporotic bone regeneration are the persistent decline in osteogenic differentiation potential of bone marrow mesenchymal stem cells (BMSCs) and the abnormally high activity of osteoclasts. Emerging research highlights the crucial role of immunomodulation in osteoporosis. Harnessing the immunomodulatory capabilities of bioactive materials to improve the compromised osteoporotic microenvironment may enhance the osteogenic differentiation potential of BMSCs while reducing osteoclast differentiation and resorption. This strategy offers promising avenues for treating osteoporotic bone defects. In this study, we developed an innovative 3D-printed SrCO<sub>3</sub>@PCL/PDA composite scaffold. Through 3D printing, the polycaprolactone (PCL) matrix was customized to achieve biomimetic structural and mechanical design. The introduced strontium carbonate (SrCO<sub>3</sub>) allows for the responsive release of Sr<sup>2+</sup> ions in the acidic osteoporotic microenvironment, suppressing osteoclast activity and maintaining a regenerative-friendly environment. The polydopamine (PDA) coating enhances the biocompatibility of the scaffold, thereby promoting cell adhesion and proliferation on its surface. Notably, this novel composite scaffold effectively promotes macrophage polarization towards the M2 phenotype rather than the M1 phenotype, exerting an immunomodulatory effect that improves osteoporotic bone regeneration. In vivo experiments further validated our hypothesis. This innovative composite scaffold offers a promising strategy for the comprehensive treatment of osteoporotic bone defects.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"298 ","pages":"Article 112406"},"PeriodicalIF":12.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Succinic acid-based biodegradable hydrogels drive Bv2 microglial polarization by ATP metabolism

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-14 DOI: 10.1016/j.compositesb.2025.112383

Jingwen Zhao, Yiling Xiong, Xinying Wang, Yao Wang, Jing He, Fang Wu

{"title":"Succinic acid-based biodegradable hydrogels drive Bv2 microglial polarization by ATP metabolism","authors":"Jingwen Zhao, Yiling Xiong, Xinying Wang, Yao Wang, Jing He, Fang Wu","doi":"10.1016/j.compositesb.2025.112383","DOIUrl":"10.1016/j.compositesb.2025.112383","url":null,"abstract":"<div><div>Effective regenerative strategies for spinal cord injury (SCI) depend on promoting neuronal regeneration and suppressing inflammation, both requiring substantial energy. Succinic acid-based materials have attracted attention for enhancing cellular energy through the tricarboxylic acid (TCA) cycle and mitochondrial electron transport. However, succinic potential to exacerbate inflammation complicates therapeutic use, making it crucial to understand how these materials regulate microglial polarization. Here, we presented a degradable bioenergy hydrogel system by integrating succinic acid (SA) into chitosan (CS), yielding an energy-active unit. Upon implantation, degradation of chitosan released energy-active units, which were transported into Bv2 microglial cells via SLC13A3, thereby engaging mitochondrial electron transport chain and the TCA cycle. At optimized concentrations, these energy-active units facilitated M2 polarization of Bv2 cells, augmenting adenosine triphosphate (ATP) levels and driving anti-inflammatory factor expression to support tissue repair. Conversely, excess concentrations triggered mitochondrial reverse electron transport, elevating reactive oxygen species (ROS) production, impairing ATP synthase, and enhancing pro-inflammatory factor release via SLC25A10-mediated succinate export. This concentration-dependent effect underscores the nuanced role of succinic acid in modulating microglial polarization states. Furthermore, degradation of CSSA fragments activated the AMPK-mTOR and cAMP signaling pathways, significantly boosting ATP synthesis and fostering M2 microglial polarization. Our findings offer a novel avenue to enhance SCI repair by modulating cellular energy balance and refining the inflammatory milieu, while establishing critical concentration parameters for the deployment of succinic acid-based biomaterials in tissue regeneration contexts.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"298 ","pages":"Article 112383"},"PeriodicalIF":12.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A comparative analysis of quasi-static indentation and low-velocity impact on the free edges of CFRP composite laminates 准静态压痕和低速冲击对 CFRP 复合材料层压板自由边缘的影响对比分析

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-13 DOI: 10.1016/j.compositesb.2025.112395

Nian Li , Jian Du , Rui Liu , Hsiao Mun Lee , Heow Pueh Lee

{"title":"A comparative analysis of quasi-static indentation and low-velocity impact on the free edges of CFRP composite laminates","authors":"Nian Li , Jian Du , Rui Liu , Hsiao Mun Lee , Heow Pueh Lee","doi":"10.1016/j.compositesb.2025.112395","DOIUrl":"10.1016/j.compositesb.2025.112395","url":null,"abstract":"<div><div>A comparative study was conducted to evaluate the feasibility of using quasi-static indentation for characterizing the dynamic behavior of CFRP laminated composites subjected to free edge-on impact, focusing on both damage resistance and tolerance. Inspection methods, including ultrasonic C-scanning, 3D X-ray CT reconstruction, in-situ DIC measurement, etc., were utilized to examine damage status and mechanical responses induced by quasi-static edge-on indentation, dynamic edge-on impact and subsequent compression. The analysis revealed comparable failure mechanisms underlying the quasi-static and dynamic testing: wedge-shaped debris and bending fracture of the sub-laminates. In compression, local buckling of sub-laminates caused delamination propagation, ultimately resulting in structural collapse due to fiber fracture. Quasi-static testing provided a good approximation of dynamic edge-on force-displacement behavior without force signal oscillations. A compressive strength reduction of approximately 30 %, for barely visible impact damage (BVID) induced by edge-on loading, emphasized the significance of edge-on impact damage tolerance, where the more accessible quasi-static method could be employed.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"298 ","pages":"Article 112395"},"PeriodicalIF":12.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scaffold internal network bioprinting for vascularized tissue regeneration

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-13 DOI: 10.1016/j.compositesb.2025.112401

Litao Suo , Yaqi Guo , Shan Mou , Yichao Jin , Dandan Zou , Jiaming Sun , Zhenxing Wang

{"title":"Scaffold internal network bioprinting for vascularized tissue regeneration","authors":"Litao Suo , Yaqi Guo , Shan Mou , Yichao Jin , Dandan Zou , Jiaming Sun , Zhenxing Wang","doi":"10.1016/j.compositesb.2025.112401","DOIUrl":"10.1016/j.compositesb.2025.112401","url":null,"abstract":"<div><div>The regeneration of large-volume artificial organs necessitates effective vascularization. However, establishing free-form and perfusable vascular networks within these constructs remains a significant challenge. In this study, we introduce a novel printing technique termed Scaffold Internal Perfusable Vascular Network Printing (SINP), which utilizes microsphere suspensions to fabricate customizable vascular networks within a designated microsphere scaffold while simultaneously seeding multiple cell types for engineering vascularized tissues. This printing method offers three key advantages. Firstly, the GelMA microsphere bath promotes construct formation with substantial porosity, facilitating internal nutrient diffusion and cell infiltration. Secondly, the incorporation of sacrificial ink creates internal free-form channels that are essential for ensuring adequate nutrient supply in large-volume tissue scaffolds. Lastly, by seeding multiple cell types from the lumen of the tubes, including vascular endothelial cells, it is possible to construct specific vascularized tissues in <em>vitro</em>. Ultimately, we successfully printed centimeter-level demo-shaped vascularized breast tissue and demonstrated its regenerative efficacy in <em>vivo</em> and in <em>vitro</em> experiments, highlighting the potential of this innovative printing approach for regenerating large-volume vascularized tissues.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"299 ","pages":"Article 112401"},"PeriodicalIF":12.7,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile method to enhance the optical properties of transparent glass fiber-reinforced epoxy composites by controlling the curing agent content ratio 通过控制固化剂含量比提高透明玻璃纤维增强环氧树脂复合材料光学性能的简便方法

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-12 DOI: 10.1016/j.compositesb.2025.112402

Dong-Kyu Kim , Young Ho Choi , Kwan-Woo Kim , Byung-Joo Kim

{"title":"Facile method to enhance the optical properties of transparent glass fiber-reinforced epoxy composites by controlling the curing agent content ratio","authors":"Dong-Kyu Kim , Young Ho Choi , Kwan-Woo Kim , Byung-Joo Kim","doi":"10.1016/j.compositesb.2025.112402","DOIUrl":"10.1016/j.compositesb.2025.112402","url":null,"abstract":"<div><div>In this study, the refractive index of epoxy resin was adjusted according to the mixing ratio of two types of curing agents, namely 4,4′-diaminodiphenylmethane and poly(propylene glycol) bis(2-aminopropyl ether). The optical properties of the cured pure polymers and transparent glass fiber-reinforced plastics (GFRP)<sup>1</sup> (analyzed with an ultraviolet–visible spectrophotometer) were compared. Epoxy (EP)/P9D1-F exhibited excellent optical properties (transmittance of 89.54 % and a haze of 9.30 %). The small refractive index difference between EP/P9D1 and glass fiber reduced the phase delay and fabricated high-transmittance, transparent GFRP. In addition, EP/P9D1-F exhibited superior mechanical properties, with enhanced flexural strength and fracture toughness owing to the improved stress distribution between the fiber and matrix. These findings suggest that a transparent GFRP with high transmittance and glass-like optical properties, as well as excellent mechanical performance, can be fabricated by appropriately mixing and adjusting two or more types of curing agents.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"298 ","pages":"Article 112402"},"PeriodicalIF":12.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of loading on water distribution and migration characteristics of hardened cement paste with different water content 加载对不同含水量硬化水泥浆水分分布和迁移特性的影响

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-12 DOI: 10.1016/j.compositesb.2025.112370

Zhipeng Huang , Yuzhu Yang , Jianhui Liu , Leping Liu , Zheng Chen , Caijun Shi

{"title":"Effect of loading on water distribution and migration characteristics of hardened cement paste with different water content","authors":"Zhipeng Huang , Yuzhu Yang , Jianhui Liu , Leping Liu , Zheng Chen , Caijun Shi","doi":"10.1016/j.compositesb.2025.112370","DOIUrl":"10.1016/j.compositesb.2025.112370","url":null,"abstract":"<div><div>The service life of concrete structures is significantly influenced by the coupled effects of mechanical forces and environmental conditions, with axial pressure and environmental humidity being two of the most prevalent factors. Despite extensive research, the water migration behavior of hardened cement paste (HCP) with varying water content under axial pressure remains poorly understood. This study introduces a novel axial pressure-controlled Hydrogen Nuclear Magnetic Resonance (<sup>1</sup>H NMR) system, investigating in-situ monitoring of strain changes and water distribution in HCP with different water contents during loading at various stress levels. The results showed that a reduction in water content would reduce the interlayer spacing of C–S–H, thereby increasing the densification of C–S–H gel and enhancing the mechanical properties of cement-based materials. The critical sliding point between C–S–H layers occurs at an average interlayer spacing of 1.89 nm. Under axial compressive loading, the C–S–H gel is compressed, causing some gel pores to reorganize into interlayer pores. Consequently, the interlayer water content increases while the gel water content decreases. As the stress level rises, the interlayer water content gradually increases, reaching its maximum when the stress level equals or exceeds the critical stress. At this point, the water migration behavior transitions from fully reversible to partially reversible. These findings provide valuable insights into the coupled effects of mechanical loading and water migration in HCP, which are crucial for predicting the long-term performance and durability of concrete structures in diverse environmental conditions.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"298 ","pages":"Article 112370"},"PeriodicalIF":12.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring of crystal size and significant enhancement of physical property, ductility and toughness in in-situ nano kraft lignin/nano-fibrillated cellulose biocomposite

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2025-03-12 DOI: 10.1016/j.compositesb.2025.112400

Majed Parvan , Vijay Singh Parihar , Minna Kellomäki , Mrityunjoy Mahato , Rama Layek

{"title":"Tailoring of crystal size and significant enhancement of physical property, ductility and toughness in in-situ nano kraft lignin/nano-fibrillated cellulose biocomposite","authors":"Majed Parvan , Vijay Singh Parihar , Minna Kellomäki , Mrityunjoy Mahato , Rama Layek","doi":"10.1016/j.compositesb.2025.112400","DOIUrl":"10.1016/j.compositesb.2025.112400","url":null,"abstract":"<div><div>An aqueous dispersion of nano-fibrillated cellulose (NFC) biocomposite solution with colloidal kraft lignin (CKL) particles ranging from 0 to 5 wt% was produced by preparing in-situ CKL in the aqueous dispersion of NFC. The CKL/NFC dispersions were vacuum filtered to remove excess water and then dried at 70 °C for 5 min using compression molding to obtain free-standing CKL/NFC composite films. The CKL particles remained homogeneously dispersed on the NFC fibril surfaces, forming hydrogen bonds with the hydroxyl groups of the NFC chain, which led to in-situ CKL-directed crystallization as well as nano-reinforcement. X-ray diffraction studies confirmed that the crystal size of the NFC molecules increased with the integration of in-situ CKL particles. Consequently, the CKL/NFC composite films demonstrated significant enhancement of tensile strength, elongation at break, and toughness. Additionally, CKL/NFC composite films exhibited outstanding thermal stability, UV-shielding, and antioxidant properties. These findings suggest that CKL/NFC biocomposite films could be suitable for structural and engineering composite materials, consumer products, and packaging applications.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"298 ","pages":"Article 112400"},"PeriodicalIF":12.7,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0