Article
Engineering, Manufacturing
J. V. Viisainen, A. Hosseini, M. P. F. Sutcliffe
Summary: This study investigates the effect of component geometry on the wrinkling mechanisms of non-crimp fabrics during preforming, revealing the significant impact of geometry on wrinkle severity and the existence of two possible wrinkling mechanisms. Additionally, the increase in local shear resistance and textile compression are shown to be related to fabric wrinkles.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Materials Science, Composites
Rajan Jagpal, Evangelos Evangelou, Richard Butler, Evripides G. Loukaides
Summary: This study demonstrates the feasibility and flexibility of the distributed magnetic clamping (DIMAC) method in multiple ply forming strategies, and proposes a method to measure the wrinkling degree. The study also analyzes the impact of ply bending mechanics on the compression folding process.
COMPOSITES COMMUNICATIONS
(2022)
Article
Mechanics
Ming Mei, Yujia He, Kai Wei, Xujing Yang
Summary: In this study, the preforming characteristics of both single layer and multi-layered NCF hemisphere preforming are systematically investigated through experiments. Strategies such as increasing the weight of the blank holder and optimizing the fabric geometry are applied to mitigate defects. It is found that the macro and meso wrinkles in the single layer fabric preforming are related to positive and negative shear deformation, while the defects are more severe in ply configuration [0 degrees /90 degrees, +/- 45 degrees] compared to [0 degrees /90 degrees]2 in multi-layered fabric preforming. Moreover, the macro wrinkle is more likely to induce defects in the adjacent layer than the meso wrinkle. The weight increase of blank holder strategy effectively mitigates the macro and meso wrinkles by adjusting shear deformation. Additionally, the geometrical optimization of fabric controls the fabric tension in different layers and hemisphere regions, effectively mitigating defects induced by interlayer interaction and shear deformation in multi-layered fabric preforming.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2023)
Article
Engineering, Aerospace
R. del Cuvillo, J. A. Artero-Guerrero, J. Pernas-Sanchez, J. Lopez-Puente
Summary: Carbon fiber reinforced epoxy laminates are widely used in aeronautical structures. This study investigates the addition of graphene particles to improve the mechanical properties of laminates manufactured using resin transfer moulding. The research demonstrates a 7.6% improvement in compression after impact tests and reveals the influence of graphene on the load-bearing capacity of the laminates through SEM analysis. Additionally, the feasibility of using graphene in an industrial environment is demonstrated by manufacturing an aircraft structure without modifying the existing industrial process.
AEROSPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Somen K. Bhudolia, Goram Gohel, Jayaram Kantipudi, Kah Fai Leong, Pierre Gerard
Summary: Current research investigates the low-velocity impact response of hollow tubular structures manufactured using novel thermoplastic resin and carbon fiber reinforcements. The study found that the new composite material showed advantages in peak load and absorbed energy, with higher damage energy attributes.
MATERIALS & DESIGN
(2021)
Article
Engineering, Manufacturing
B. X. Chai, B. Eisenbart, M. Nikzad, B. Fox, A. Blythe, P. Blanchard, J. Dahl
Summary: In this study, a novel multistage heuristic optimisation framework is proposed to optimise the radial injection configuration for the RTM process. The framework effectively identifies suitable search starting points and rapidly converges to the nearest optimum in the search neighbourhood. The results demonstrate the framework's capability to attain satisfactory outcomes at a significantly reduced computational cost.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Hamed Abdoli, Tino Hermann, Simon Bickerton
Summary: Permeability is an important parameter for textile reinforcements, and current measurement methods are destructive. This study introduces a non-destructive measurement concept based on air flow and utilizes a neural network to interpret the data. Limited predictive accuracy has been achieved.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Manufacturing
T. S. Mesogitis, G. M. Maistros, M. Asareh, C. Lira, A. A. Skordos
Summary: The study optimized a dielectric sensor for process monitoring in RTM, validated the technology's feasibility in industrial conditions through simulation and optimization. Increasing wire radius and decreasing coating thickness were found to improve sensor sensitivity, allowing for effective operation at high pressure and temperature.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Chemistry, Multidisciplinary
Nicholas Wright, Piaras Kelly, Oliver Maclaren, Ruanui Nicholson, Suresh Advani
Summary: This article introduces a method to predict race-tracking strength in an RTM process using minimal pressure sensor measurements and position the sensors optimally. The method is proven to accurately predict race-tracking effects with few measurements and reduces uncertainty by optimizing sensor locations.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Manufacturing
J. V. Viisainen, M. P. F. Sutcliffe
Summary: This study analyzes the variability in the wrinkling behavior of a biaxial non-crimp fabric under different conditions during hemispherical preforming and develops a method to quantify the variability in wrinkle amplitude and location. The results indicate that fabric architecture and forming layup significantly influence wrinkle amplitude and location variability, with location variability being more sensitive to changes in the forming process.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Byeong-Joo Kim, Jinsik Kim, Sang-Hyup Cha, Yoon-Bo Shim, Changyoon Jeong, Namhun Kim, Young-Bin Park
Summary: A novel sandwich-structured composite was fabricated and characterized, consisting of a 3D printed core and a woven carbon fiber/polyamide-6 facesheet. The use of 3D printing technology, interfacial strengthening techniques, and T-RTM process resulted in synergistic effects on mechanical properties, enhancing compressive properties and impact resistance significantly.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Multidisciplinary
S. Chen, A. M. Joesbury, F. Yu, L. T. Harper, N. A. Warrior
Summary: This study introduces local intra-ply stitch removal to improve the formability of a pillar-stitched biaxial NCF, using an optimization method that selectively removes stitches to minimize local shear angle and total stitch removal area. Experimental results confirm successful elimination of macro-scale wrinkling and demonstrate a global effect on formability when intra-ply stitches are removed according to the optimized pattern.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
James J. Murray, Ankur Bajpai, James Quinn, Jake McClements, Klaus Gleich, Edward D. McCarthy, Conchur M. O. Bradiagh
Summary: This study investigates the fibre-matrix interfacial properties of glass-fibre/polyamide-6 composites produced by thermoplastic resin transfer moulding. The results show that the use of a novel reactive fibre sizing improves the adhesion between fibres and matrix, as well as the fracture toughness of the composites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Composites
Seung Mo Son, Minjung Kim, Jung Jae Yoo, Min Seong Kim, Byeong-Su Kim, Dong Gi Seong
Summary: An efficient process for improving the water stability of carbon fiber reinforced thermoplastic (CFRTP) has been proposed by coating fluorinated polydopamine (f-PDA) on PA 6-based CFRTP. The f-PDA-CFRTP showed enhanced mechanical properties, with a 16% increase in interlaminar shear strength and a 31% increase in flexural strength when immersed in water. It also exhibited improved anti-icing performance, with a 49% reduction in surface energy. The f-PDA-CFRTP has potential applications in external parts of transportation industries, ensuring environmental reliability.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Shujuan Wang, Lu Wang, Wen Song, Chenhui Li, Wei Fan, Cheng Bian, Chengshuang Zhang, Xinli Jing
Summary: Arylboronic acid modified phenolic resins (ABPRs) were developed for resin-transfer molding (RTM) techniques, which exhibited low viscosity and excellent heat resistance. The inclusion of arylboronic acid significantly improved the thermal stability and oxidation resistance of the phenolic resins. The CF/ABPR composites reinforced with three-dimensional woven carbon fiber textiles demonstrated excellent mechanical properties and ablation performance.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Energy & Fuels
Jihua Zhao, Hongzhi Ma, Wenyu Wu, Mohammed Ali Bacar, Qunhui Wang, Ming Gao, Chuanfu Wu, Changlei Xia, Dayi Qian
Summary: Chinese liquor brewing wastewater (CLBW) can be upgraded to biofuels, specifically medium chain fatty acids (MCFAs), using microbial electrosynthesis (MES). The study found that under-1.0 V/CO2 condition, CLBW had the highest concentration and selectivity of caproate, which was 32.6% and 31.9% higher than the control group. The pH and electrochemical analysis supported the superiority of-1.0 V/CO2 condition. This study provides a new pathway for MCFAs production.
Article
Energy & Fuels
Jian Yang, Rui Ma, Yi Xing, Hongzhi Ma, Biqin Dong, Hongxia Li, Chen Hong, Changlei Xia
Summary: This study used antibiotic residues and transition metal modified HZSM-5 catalysts to produce bio-oil and investigated their effects. The results showed that single metal modified HZSM-5 was more effective and Fe/HZSM-5 had better hydrogenation effect while Cu/HZSM-5 had better denitrification effect. The study also inferred the catalytic mechanism.
Article
Chemistry, Physical
Yingji Wu, Yongnan Zhang, Minh Viet Nguyen, Thi Thu Hien Chu, Tuan B. H. Nguyen, Elena-Niculina Dragoi, Changlei Xia
Summary: This review outlines the design and synthesis of metals for water oxidation electrocatalysis and explores the outlook and development trends in this area.
MOLECULAR CATALYSIS
(2023)
Article
Agricultural Engineering
Ying Yao, Hao Dou, Tao Liu, Shujuan Wang, Yuan Gao, Jingyu Kang, Xingzhong Gao, Changlei Xia, Yao Lu, Wei Fan
Summary: Enzymatic treatment on sisal fiber surface improves the interfacial properties with bio-based epoxy resin, enhancing the mechanical properties of composites.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agricultural Engineering
Jiangjing Shi, Tuhua Zhong, Xiang Xu, Jieyu Wu, Yanping Zou, Benhua Fei, Changlei Xia, Hong Chen
Summary: We proposed a method to manufacture special-shaped bamboo binderless fiberboards (BBFBs) using water as a flow agent and hot-pressing. The size of bamboo fibers was found to affect the prompt drainage of water during hot pressing, with larger fibers being beneficial and excessive smaller fibers resulting in bulging. The optimal size of bamboo fibers was crucial for obtaining BBFBs with desirable performances. This development holds great potential for eco-friendly and special-shaped BBFB products in furniture and packaging applications.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Review
Biochemistry & Molecular Biology
Changlei Xia, Xin Jin, Ahmad Parandoust, Reza Sheibani, Zahra Khorsandi, Narjes Montazeri, Yingji Wu, Quyet Van Le
Summary: Chitosan (CS) is the second most abundant natural polymer in the earth's crust. Its unique properties have led to increased applications in various fields such as medicine and pollution removal. Using CS as a template and support for metal nanoparticles can effectively eliminate nitro compounds, a category of biological pollutants.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Composites
Shida Zuo, Suiyi Li, Yingji Wu, Xiaona Li, Yan Yuan, Rui Yang, Jianzhang Li, Changlei Xia
Summary: The study focuses on the high demand for thermally conductive materials in the electronic device industry and proposes a novel blend system using waste poplar wood and boron nitride (hBN). A biobased composite material with high thermal conductivity, mechanical strength, flame retardancy, and water resistance is prepared through a vacuum-assisted resin transfer molding process. The inclusion of hBN increases the thermal conductivity of the material by 1324.2% and surpasses most commonly used polymers and elastomers in electronic component heat dissipation materials, demonstrating its potential in this field.
POLYMER COMPOSITES
(2023)
Article
Environmental Sciences
Yingji Wu, Yubo Liu, Hesam Kamyab, Manivasagan Rajasimman, Natarajan Rajamohan, Gia Huy Ngo, Changlei Xia
Summary: Due to their harmful effects on human health and the environment, there is significant concern regarding the widespread occurrence of endocrine-disrupting hazardous chemicals (EDHCs). To address this concern, various physicochemical and biological remediation techniques have been developed. This review paper provides a comprehensive overview of the state-of-the-art remediation techniques for eliminating EDHCs, including adsorption, membrane filtration, photocatalysis, biodegradation, phytoremediation, and microbial fuel cells. The review discusses the effectiveness, advantages, limitations, and factors affecting the performance of each technique, as well as recent developments and future perspectives in EDHCs remediation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Jiayao Li, Boren Dai, Jiangtao Shi, Weiqi Leng, Xinzhou Wang, Changlei Xia, Kathirvel Brindhadevi
Summary: Wood-based Fe3O4 composites with excellent microwave absorption properties and high mechanical strength were prepared using alkaline sulfite method, in-situ co-precipitation method, and compression densification method.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yingji Wu, Changlei Xia, Li Zhang, Nguyen Chi Thanh, Sami Al Obaid, Saleh Alfarraj, G. K. Jhanani
Summary: Petroleum-based polymers have raised environmental concerns, so it is important to develop biodegradable, biocompatible, and nontoxic polymers as alternatives. This research focused on extracting gelatin from fish waste cartilage and coating it onto pre-synthesized spherical zinc nanoparticles (ZnNPs) with a suitable plasticizer to create a biodegradable film. The presence of gelatin on ZnNPs was confirmed using UV-visible spectrophotometers, and Fourier-Transform Infrared Spectroscopy (FTIR) was used to study the coating's functional groups. Scanning Electron Microscope (SEM) analysis showed that the gelatin-coated ZnNPs had a size range of 41.43-52.31 nm and a platonic to pentagonal shape. The fabricated film had a thickness of 0.04-0.10 mm, density of 0.10-0.27 g/cm3, and tensile strength of 31.7 kPa. These findings suggest that the fish waste cartilage gelatin-coated ZnNPs-based nanocomposite can be used for film production and as a wrapper for food and pharmaceutical packaging.
ENVIRONMENTAL RESEARCH
(2023)
Review
Chemistry, Physical
Changlei Xia, Jiamin Wu, Seyed Ali Delbari, Abbas Sabahi Namini, Yan Yuan, Quyet Van Le, Dokyoon Kim, Rajender S. Varma, Ali T-Raissi, Ho Won Jang, Mohammadreza Shokouhimehr
Summary: In the field of heterogeneous catalysts, there is a growing demand for environmentally friendly and sustainable materials. Metal-organic frameworks (MOFs) are emerging as a new type of active material for organic reactions, with potential for improved recyclability, separability, and activity when integrated with metallic nanoparticles. This article discusses several MOF-based nanostructured catalysts that enable specific organic transformations, such as Baeyer-Villiger oxidation, cyanation of aldehydes, and cycloalkane oxidation. The benefits, shortcomings, reusability, and efficiency of these catalysts are reviewed, along with the major obstacles and future research needs related to MOF-based catalysts.
MOLECULAR CATALYSIS
(2023)
Article
Construction & Building Technology
Yang Wang, Haoran Ye, Changlei Xia, Yang Shi, Zhongfeng Zhang, Su Shiung Lam, Rock Keey Liew, Christian Sonne, Shengbo Ge
Summary: The issue of white pollution has gained more attention worldwide. This study presents an innovative method of producing high-quality wood-plastic laminates using fast-growing wood and plastic waste. The laminates, prepared through a one-step thermal forming process with microwave-assisted acetic acid pretreated poplar veneer and powdered polyethylene, exhibit excellent mechanical properties and good surface waterproof performance. These glue-free, high-strength, and heat-resistant wood-plastic laminates have potential applications in interior furniture and outdoor building facilities, contributing to the protection of the environment and alleviating the pressure on wood resources.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Feng Li, Jiaying Mo, Zhicheng Zhang, Sheldon. Q. Shi, Jianzhang Li, Jinfeng Cao, Zuankai Wang
Summary: Developing superior underwater adhesives with desirable interfacial and bulk properties is challenging. We present a bio-inspired strategy that utilizes a hydrophilic backbone for quick water absorption and a novel amino acid-resembling block for strong interfacial adhesion. The combination of these components enables the generation of abundant covalent crosslinks for robust bulk cohesion. This rational design results in boosted underwater adhesion, remarkable durability, and good stability in various harsh environments.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Pashupati R. Adhikari, Eunji Lee, Lee Smith, Jeongyong Kim, Sheldon Shi, Wonbong Choi
Summary: The effect of morphological variation in 3D carbon nanotubes as a sulfur host material in lithium-sulfur batteries was investigated. The results show that high surface area and porosity are crucial parameters for efficient sulfur host materials in 3D carbon nanotubes.
Article
Energy & Fuels
Yingji Wu, Yan Yuan, Changlei Xia, Tahani Awad Alahmadi, Sulaiman Ali Alharbi, Manigandan Sekar, Arivalagan Pugazhendhi
Summary: This study focuses on improving fuel quality by introducing hydrogen into waste tire pyrolysis oil. The addition of hydrogen was found to improve the combustion process and reduce harmful gas emissions. Waste tire pyrolysis oil blended with hydrogen showed promising performance as an alternative fuel for diesel engines.
Article
Engineering, Multidisciplinary
Keyu Zhu, Xitao Zheng, Jing Peng, Jiaming Sun, Ruilin Huang, Leilei Yan
Summary: This paper discusses the influence of multiple impacts on the compression strength of honeycomb sandwich structures with composite face sheets. It is found that the size of the impactor affects the turning point of the compression strength. Additionally, high impact energy leads to damage in the bottom face sheet and reduces the overall compression strength.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Danqian Wang, Yanfei Yue, Jueshi Qian
Summary: Magnesium Potassium Phosphate Cement (MKPC) as a binder for steel rebars shows improved corrosion resistance when subjected to carbonation, due to the increase in pH and the formation of a more protective oxide film.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Zhibin Li, Wenyu Wang, Pengcheng Xue, Xingyu Wei, Jian Xiong
Summary: This work proposes a design approach and manufacturing method for carbon fiber reinforced plastic (CFRP) corrugated sandwich truncated cones (CSTC) to improve their anti-debonding ability and ensure reliability. The study establishes theoretical models for CSTCs' stiffness and failure modes, which are verified through experiments and finite element analysis (FEA). The research reveals the effect of geometric parameters on failure modes and performs an optimal design for CSTC structures. The findings have significant implications for the design and application of lightweight CSTCs in constructions, such as launch vehicle adapters.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mingyu Zhang, Lei Chu, Jiahua Chen, Fuxun Qi, Xiaoyan Li, Xinliang Chen, Deng-Guang Yu
Summary: This review summarizes the different structures and construction methods of fibrous membranes with asymmetric wettability. It also reviews the biological applications of these membranes and suggests future challenges.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
E. Mofakhami, L. Gervat, B. Fayolle, G. Miquelard-Garnier, C. Ovalle, L. Laiarinandrasana
Summary: This study investigates the effects of fibre concentration on the mechanical response of welded glass-fibre-reinforced polypropylene (GF-PP). Experimental observations reveal a significant reduction in weld ratio, up to 60%, indicating a decreased strength compared to the bulk material. Increasing fibre content in the welded material results in a decrease in stress at break and strain at the maximum stress. The use of DIC technique and X-ray microtomography further confirms the localized strain amplification in the welded zone due to the significant increase in fibre density.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Emad Pourahmadi, Farjad Shadmehri, Rajamohan Ganesan
Summary: This research compares the mechanical properties of laminates manufactured using automated fiber placement and conventional autoclave curing methods. The results show that laminates manufactured using automated fiber placement have a lower interlaminar shear strength compared to laminates reconsolidated using autoclave curing. A finite element simulation method is proposed to quantitatively analyze these differences.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Johnny Jakobsen, Benny Endelt, Fahimeh Shakibapour
Summary: This study proposes a new bolted/pinned joining method for composite applications, which improves load transfer by introducing a patch-type reinforcement. Experimental results demonstrate significant improvements in both static and fatigue load conditions compared to existing methods. Finite element simulations highlight the advantage of this method, as it creates a more efficient load-transferring mechanism through different stress distributions.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Gisele G. Cintra, Janine D. Vieira, Daniel C. T. Cardoso, Thomas Keller
Summary: This paper proposes a novel approach to assess multi-crack behavior in layered fiber-polymer composites. The generated Compliance and R-curves provide useful insights into understanding the multiple delamination process and allow for separate evaluation of strain energy release rate (SERR) for each crack. The developed cohesive zone model successfully simulates the failure process zone of three parallel cracks, showing good agreement between the numerical model and experimental results.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Renil Thomas Kidangan, Sreedhar Unnikrishnakurup, C. Krishnamurthy, Krishnan Balasubramaniam
Summary: The induction heating process can accurately identify fiber orientation and stacking order, making it a valuable tool for large-area inspection and quality control in manufacturing fiber-reinforced composites.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Sungjun Hwang, Yousoo Han, Douglas J. Gardner
Summary: Bleached Kraft pulp, unbleached Kraft pulp, and old corrugated cardboard pulp are suitable for producing cellulose nanofibril suspensions. Spray drying is a fast, simple, cost-effective, and scalable drying method. Spray-dried cellulose nanofibrils can be used as reinforcing materials in polypropylene matrices. The particle size of cellulose nanofibrils affects the material properties.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Mehdi Mahdavi, Abbas Zolfaghari
Summary: This study aims to improve the recovery forces of shape memory polymers (SMPs) through material extrusion additive manufacturing. By using glass fiber (GF) as reinforcement and manufacturing multi-layer composite specimens, it was found that PLA with 6.62% GF exhibited the best recovery force, which was further optimized through annealing heat treatment.
COMPOSITES PART B-ENGINEERING
(2024)
Review
Engineering, Multidisciplinary
Xiang Ao, Antonio Vazquez-Lopez, Davide Mocerino, Carlos Gonzalez, De-Yi Wang
Summary: The vulnerability of natural fibers to heat and fire poses a significant challenge for their substitution of traditional fiber reinforcements in composite materials. Natural fiber/polymer composites (NFCs) are regarded as potential candidates for engineering applications due to their environmental friendliness and low-impact sourcing. Thus, appropriate approaches need to be implemented to enhance the fire safety of NFCs. This review summarizes and discusses the latest understanding of flammability and thermal properties of natural fibers, with a special focus on their interaction with polymer matrix in fire behavior. Additionally, the latest developments in flame-retardant approaches for NFCs are reviewed, covering both flame retardancy and fire structural integrity. Finally, future prospects and perspectives on fire safety of NFCs are proposed, providing insights into further advancements of NFCs.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Cheng Wang, Siqi Huo, Guofeng Ye, Bingtao Wang, Zhenghong Guo, Qi Zhang, Pingan Song, Hao Wang, Zhitian Liu
Summary: The demand for multifunctional, transparent epoxy resin with superior dielectric, mechanical, and fire-safety performances is increasing in modern industries. Researchers have developed an epoxidized, phosphaphenanthrene-containing poly(styrene butadiene styrene) (ESD) for advanced fire-safe epoxy resin, which maintains high transparency and improves UV-blocking property. The addition of 10 wt% ESD results in improved mechanical properties, decreased dielectric constant and loss, and outperformance compared to other fire-safe epoxy resins. This research provides an effective method for developing multifunctional flame-retardant epoxy resin.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Bo Pang, Heping Zheng, Zuquan Jin, Dongshuai Hou, Yunsheng Zhang, Xiaoyun Song, Yanan Sun, Zhiyong Liu, Wei She, Lin Yang, Mengyuan Li
Summary: This study develops an internal superhydrophobic material (ISM) using waste denitrification fly ash, which maintains stable hydrophobicity under harsh conditions of use and does not rely on expensive fluor-based surface modifications. The synthesized ISM has excellent matrix strength, strong waterproof properties, and retains superhydrophobicity even at damaged or friction interfaces.
COMPOSITES PART B-ENGINEERING
(2024)
Article
Engineering, Multidisciplinary
Meirbek Mussatayev, Qiuji Yi, Mark Fitzgerald, Vincent K. Maes, Paul Wilcox, Robert Hughes
Summary: Real-time monitoring of carbon fibre composites during Automated Fibre Placement (AFP) manufacturing remains a challenge for non-destructive evaluation (NDE) techniques. This study designed a directional eddy-current (EC) probe to evaluate the detectability of out-of-plane wrinkles. Experimental evaluations and finite element modeling were conducted to better understand the relationship between eddy-current density and defect detection. The findings suggest that the probe configuration with an asymmetric driver coil and differential pickup coils shows the best capability for wrinkle detection.
COMPOSITES PART B-ENGINEERING
(2024)
