Article
Polymer Science
Yevgen Mamunya, Oleksii Maruzhenko, Roman Kolisnyk, Maksym Iurzhenko, Andrii Pylypenko, Olha Masiuchok, Marcin Godzierz, Igor Krivtsun, Barbara Trzebicka, Sebastien Pruvost
Summary: Electrothermal processes were investigated in pyroresistive composites of high-density polyethylene with carbon black and carbon fibers. The kinetic heating curves showed an exponential dependence with a heating rate constant for each composite. Equilibrium temperature was reached after a short heating time, and decreased with the presence of positive temperature coefficient of resistance (PTC) effect. The composites exhibited self-regulating capability and the equilibrium temperature depended on the applied voltage and electric power with different relationships. An application of using HDPE-CB composite as a heating element for resistance welding was demonstrated.
Article
Engineering, Multidisciplinary
Jing Chen, Jiaming Zhu, Qianzhu Li, Hong Wu, Shaoyun Guo, Jianhui Qiu
Summary: In this study, the wear resistance of materials under harsh PV conditions was improved by introducing plasma-treated UHMWPE and constructing a 3D interconnected CNTs network in PA6 composites. The incorporation of these materials reduced the COF of PA6 significantly and improved the heat dissipation properties.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Manufacturing
Xiaowen Wang, Paul Smith, Zhe Qiang, Qingbao Guan, Zhengwei You, Changhuai Ye, Meifang Zhu
Summary: In this study, conductive composites based on all-aromatic multiblock poly(esterimide)s (BPEI) and multilayer graphene (MLG) with well-defined segregated structure were successfully fabricated. These composites exhibited ultrahigh electrical conductivity and high EMI shielding effectiveness, along with high thermal stability and outstanding flame retardancy.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Composites
Shengdao Wang, Yanchao Yang, Yongfeng Mu, Jiyao Shi, Xin Cong, Jiashuang Luan, Guibin Wang
Summary: This study successfully improved the weak interfacial strength between carbon fiber and PEEK matrix in carbon fiber/PEEK composites by introducing chemical bonds, resulting in increased interfacial shear strength and interlaminar shear strength.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Jie-Hua Cai, Xiao-Hong Tang, Xu-Dong Chen, Ming Wang
Summary: Elastomer composites with temperature and strain-induced tunable EMI shielding effectiveness were successfully obtained by introducing temperature-sensitive microspheres (TSM) into PDMS/CNT mixture. The mechanism of temperature and strain-induced regulation on EMI shielding was investigated, showing that TSM particles could rearrange the CNT conductive network at specific temperature and strain levels. Temperature-induced regulation led to a decrease in EMI SE at 120°C, partially recovering at 150°C, while strain-induced regulation resulted in reduced EMI SE after 70% compression, partially recovering at 120°C.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Roberto Scaffaro, Maria Clara Citarrella, Emmanuel Fortunato Gulino
Summary: An innovative green composite was produced by adding NPK fertilizer flour to a biodegradable polymer, which can regulate the release rate of fertilizers and solve the ecological problems caused by excessive fertilization.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Multidisciplinary
Jindong Zhang, Gang Liu, Peng An, Kun Yu, Jia Huang, Yangyang Gu, Jianan Yao, Rui Cao, Hao Liu, Chunhai Chen, Chao Zhang, Ming Wang
Summary: This paper investigates the effects of cooling rates on the crystallization behavior, interfacial bonding strength, interlaminar fracture toughness and low-velocity impact performance of carbon fiber reinforced poly(aryl ether ketone) (PAEK) and poly(ether ether ketone) (PEEK) composites. The results show that PAEK has lower crystallinity and smaller crystals compared to PEEK at the same cooling rate. The lower crystallinity and smaller crystals of PAEK contribute to improved matrix ductility and interfacial bonding strength in the composites. Under water cooling conditions, the impact damage area of CF/PAEK is about 71% lower than that of CF/PEEK, while the CAI is about 14% higher.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Composites
Sha Yin, Ruiheng Yang, Yao Huang, Weihua Guo, Dianhao Chen, Wen Zhang, Mingwei Ren, Yujing Zhou, Jun Xu
Summary: Inspired by the double-helicoidal structure of coelacanth fish scales, engineering composite materials with enhanced toughness were designed and fabricated in this study. The double-helicoidal composites exhibited higher dynamic energy absorption and more complex failure modes compared to single-helicoidal counterparts, allowing for greater design flexibility without being sensitive to fiber orientations. Additionally, interlaminar stresses were found to be responsible for delamination in the double-helicoidal composites. These findings contribute to the development of next-generation impact-resistant composite materials.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Polymer Science
Chao Cheng, Chenyu Zhang, Zhengguo Chen, Fei Zhou, Zeyu Sun, Muhuo Yu
Summary: A tackified PDCPD specialized for vacuum assistant resin infusion process (VARI) was developed, with epoxy resin and methyl nadic anhydride (NMA) added to improve interfacial bonding. The mechanical properties of the CFRCs based on the co-cured blends were comprehensively improved compared to those based on the PDCPD-T.
Article
Engineering, Manufacturing
Lijing Huang, Yuntao Qu, Zhao-xia Huang, Jin-ping Qu
Summary: In this study, polymer composites with high thermal conductivity were successfully fabricated, and the effect of viscosity ratio on heat conduction was investigated. The results showed that composites with high viscosity ratio exhibited higher thermal conductivity and stronger heat dissipation capability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Ming-Lu Huang, Cheng-Long Luo, Chang Sun, Kun-Yan Zhao, Yun-Xuan Weng, Ming Wang
Summary: In this study, microwave interference effect in polydimethylsiloxane/carbon nanotube (PDMS/CNT) sandwiched composites is regulated by tuning the dielectric and magnetic loss in the middle layer to develop absorption-type microwave shielding materials. The thickness of the middle layer is found to enhance the microwave shielding performance. Additionally, the addition of dielectric or magnetic fillers in the middle layer is shown to affect the microwave interference effect, allowing for further modulation of the microwave shielding effectiveness of the composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Manufacturing
Yuan Cao, Min Zhi Rong, Ming Qiu Zhang
Summary: The authors proposed a novel approach based on Diels-Alder (DA) chemistry to tackle the challenge of manufacturing highly filled composite materials. By crosslinking PCLolig and connecting it to maleimide functionalized Al2O3 particles, a covalent adaptable composite network was formed, enabling effective dispersion of high-concentration fillers and increased strength in the final composite material.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Jinbao Song, Kailun Zhang, Zihao Guo, Tianqi Liang, Chao Chen, Jie Liu, Dean Shi
Summary: The anisotropic effects of h-BN orientation on the thermal conductivity and interfacial thermal resistance of SiR-based TIMs were investigated. The composites with highly oriented h-BN prepared by the TR&HP process exhibited better heat dissipation, tensile properties, and lower hardness.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Helena Perez-Martin, Stefan Buchalik-Bopp, Barbara E. Guettler, Paul Mackenzie, Alex Baidak, Conchur M. O. Bradaigh, Dipa Ray
Summary: The present study aimed to investigate the impact of crystallisation morphology and kinetics on the matrix-dominated properties of CF/PEKK composites, factors that have been minimally studied together in existing literature. Different processing routes, including compression-moulding and automated tape placement (ATP), were employed to examine their effects on void content, crystallinity development, morphology, and mechanical performance. Results showed that compression-moulded laminates achieved similar levels of consolidation and crystallinity under different isothermal crystallisation conditions, while the spherulitic development varied significantly. The performance of ATP laminates was lower due to higher void content and lower crystallinity, indicating the need for a comprehensive understanding of the correlation between processing conditions and crystalline structure development in PEKK.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Multidisciplinary
You Shi, Shengtai Zhou, Huawei Zou, Mei Liang, Yang Chen
Summary: Self-lubricating polyphenylene sulfide (PPS)-based composites were achieved by in-situ construction of ordered polyamide 66 (PA) microfibrillar structure coupling with the addition of polytetrafluoroethylene (PTFE) powders as solid lubricants, using high shear injection moulding technique. The composites exhibited the best tribological properties after annealing at 150 ℃ for 1h, with the lowest friction coefficient and specific wear rate significantly lower than pure PPS. This study provides a simple method to reduce friction and wear properties of self-lubricating thermoplastic polymers, crucial for weight reduction and energy saving in industrial applications.
COMPOSITES PART B-ENGINEERING
(2021)
Review
Polymer Science
Ahmad Rajabizadeh, Maryam Alihosseini, Hawraz Ibrahim M. Amin, Haider Abdulkareem Almashhadani, Faride Mousazadeh, Marcos Augusto Lima Nobre, Maryam Dehghani Soltani, Shapari Sharaki, Abduladheem Turki Jalil, Mustafa M. Kadhim
Summary: This review summarizes the current developments of MOFs-based materials as an electrode for electric vehicle batteries, introduces the application of MOF-derived materials in electric car batteries, and highlights the features of MOFs architectures.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
Article
Materials Science, Ceramics
Mehrnoush Nakhaei, Davoud Sanavi Khoshnoud, Martin Bremholm, Marcos A. L. Nobre, Hossein Ali Khonakdar
Summary: Single-phase nanoparticles of NdFe1-xAlxO3 were synthesized via sol-gel procedure with different Al content. The characteristics of these nanoparticles, including crystallite size, morphology, dielectric properties, magnetic behavior, and photocatalytic activity, were investigated.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Mehrnoush Nakhaei, Marcos A. L. Nobre, Davoud Sanavi Khoshnoud, Martin Bremholm, Hossein Ali Khonakdar
Summary: Crystalline and single-phase Y1-xScxFeO3 (x = 0, 0.5 & 1) nanoparticles were synthesized by sol-gel method. The nanocrystals had sizes ranging from 30 to 39 nm as determined by X-Ray Diffractometry (XRD). The morphology and surface characteristics of the samples were analyzed using Field Emission Scanning Electron Microscopy (FE-SEM) and energy dispersive spectroscopy (EDS). The magnetic properties of the samples exhibited antiferromagnetic and paramagnetic behaviors, while the electrical properties showed polarization-electric loops, dielectric constant changes, and dielectric loss through frequency and temperature. The band gap energy of YFeO3 and ScFeO3 was calculated to be 2.97 and 3.07 eV, respectively, using diffuse reflectance spectroscopy analysis.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Fabiano R. Praxedes, Marcos A. L. Nobre, Andre Olean-Oliveira, Miqueias L. Portugal, Po S. Poon, Marcos F. S. Teixeira, Silvania Lanfredi, Juan Matos
Summary: The photoelectrocatalytic oxygen evolution reaction was conducted using W-doped niobate-based perovskites under visible-light irradiation. Nanostructured K0.5Na0.5(WxNb1_x)O3 materials were prepared and characterized, showing the presence of nanostructured mesoporous hollow spheres and distortion of NbO6 octahedra due to W substitution. These W-doped niobate-based perovskites exhibited the highest reported turnover frequency for photoelectrocatalytic OER under similar overpotential conditions, suggesting their potential application in catalytic and photocatalytic processes for energy production.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Physics, Multidisciplinary
Francilio Vieira Aguiar, Daniel Roger Bezerra Amorim, Rafael Marinho Bandeira, Iran da Silva Guimaraes, Aldo Eloizo Job, Deuber Agostini, Maria Leticia Vega, Helder Nunes da Cunha
Summary: In this study, self-standing films composed of polyaniline (PANI) and cashew nut shell liquid (t-CNSL) were characterized using various techniques. The addition of t-CNSL improved the roughness, thermal stability, and conductivity of the films. Chemical interactions between PANI and t-CNSL were observed, and t-CNSL acted as both a plasticizer and a dopant agent in the films. These findings provide an environmentally friendly method for enhancing the conductivity of PANI-based films.
BRAZILIAN JOURNAL OF PHYSICS
(2023)
Article
Construction & Building Technology
Alex Ramos da Silva, Fabio Friol Guedes de Paiva, Lucas Henrique Pereira Silva, Luis Fernando dos Santos, Gabrieli Roefero Tolosa, Aldo Eloizo Job, Adela Perez Galvin, Antonio Lopez-Uceda, Silvio Rainho Teixeira, Angela Kinoshita, Renivaldo Jose dos Santos
Summary: This study aimed to investigate the feasibility of using lubricating oil re-refining ash (LORR) as a pozzolanic material in mortar composites, and to determine the optimal replacement content. The results showed that LORR has high pozzolanic reactivity, contributing to the additional formation of calcium silicate hydrate gel. Up to 30% LORR replacement resulted in similar mechanical properties to the control mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Polymer Science
Carlos Toshiyuki Hiranobe, Gabrieli Roefero Tolosa, Gleyson Tadeu de Almeida Santos, Joao Pedro Jenson de Oliveira, Eduardo Roque Budemberg, Michael Jones da Silva, Flavio Camargo Cabrera, Aldo Eloizo Job, Leonardo Lataro Paim, Giovanni Barrera Torres, Renivaldo Jose dos Santos
Summary: The refrigeration industry generates millions of tons of waste polyurethane (PU) annually, causing environmental and health problems. This study explores the use of waste PU as filler in shoe soles made of styrene butadiene rubber (SBR) and natural rubber (NR). The interfacial interaction of the filler is evaluated using two methods, and the composites are found to have similarities to metallic materials in terms of stress-strain curves and exhibit a strong filler-rubber interaction, as indicated by the Lorenz-Park equation. Scanning Electron Microscopy and Fourier-Transform Infrared Spectroscopy are employed to investigate the morphology of the composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Ceramics
Alessandra M. G. Mutti, Felipe S. M. Canisares, Joao A. O. Santos, Bruno C. Santos, Dalita G. S. M. Cavalcante, Aldo E. Job, Ana M. Pires, Sergio A. M. Lima
Summary: In this study, luminescent nanohybrids were designed by synthesizing silica nanoparticles containing Eu3+-complexes through three different approaches. Among them, the SiO2-[Eu1] hybrid showed the highest quantum efficiency and color purity, and it was found to be non-toxic in cell viability tests. The hybrid was successfully applied as a luminescent stain for cell imaging, showing a specific cell marking pattern near the nucleus. These findings indicate the potential of SiO2-[Eu1] hybrid for bioimaging applications.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Mushtak T. S. Al-Ouqaili, Raed Obaid Saleh, Hawraz Ibrahim M. Amin, Zanko Hassan Jawhar, Majid Reza Akbarizadeh, Mahin Naderifar, Kovan Dilawer Issa, Juan Carlos Orosco Gavilan, Marcos Augusto Lima Nobre, Abduladheem Turki Jalil, Reza Akhavan-Sigari
Summary: The combination of herbal medicine and nanotechnology offers a innovative approach to combat antibiotic resistance by enhancing the effectiveness of phytochemical compounds.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Agricultural Engineering
Andressa Silva Gomes, Maria Vitoria Guimaraes Leal, Gabrieli Roefero Tolosa, Flavio Camargo Cabrera, Guilherme Dognani, Aldo Eloizo Job
Summary: This study aims to obtain functionalized cellulose (cDAC) by oxidation and cationization using sugarcane bagasse. The cDAC showed a maximum adsorption capacity of 563.30 mg/g for anionic dyes and exhibited good recyclability. Therefore, cDAC has the potential to be a new, clean, low-cost, recyclable, and environmentally friendly alternative for effluent decontamination containing dyes.
BIORESOURCE TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Fabiano R. Praxedes, Marcos A. L. Nobre, Andre Olean-Oliveira, Marcos F. S. Teixeira, Po S. Poon, Silvania Lanfredi, Juan Matos
Summary: Nanostructured hollow spheres composed of K0.5Na0.5(WxNb1-x)O-3 were synthesized using ultrasonic spray pyrolysis. The W-doping content affected the properties of the [NbO6] octahedra, including morphology, texture, crystalline structure, and polarization. The samples were found to be nanostructured hollow spheres through scanning and transmission electron microscopy analysis, with a balanced framework of micropores and mesopores.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Hanieh Gharoubi, Mahmoud Nasrollahzadeh, Zahra Khorsandi, Marcos A. L. Nobre, Sungkyun Choi, Benjamin Kruppke, Hossein Ali Khonakdar
Summary: A new catalyst based on Cu(II)-5-amino-1H-tetrazole complex immobilized on graphene oxide-modified magnetic nanoparticles has been synthesized. The catalyst showed high catalytic activity in the synthesis of N-benzyl-N-aryl-5-amino-1H-tetrazoles. It has excellent chemical stability and the potential for practical synthetic applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Rafael J. G. Rubira, Victor R. G. Batista, Rafael R. Correia, Wallance M. Pazin, Mateus D. Maximino, Gilia C. M. Ruiz, Giovana R. Teixeira, Aldo E. Job
Summary: This study focuses on the impact of widely used sugarcane crop pesticides, Imazapic (IMZ) and Methyl Parathion (MP), on tilapia gill tissues and their lipid membranes. The results reveal the morphological alterations in the lipid bilayer caused by electrostatic interactions between the pesticides and polar head groups of lipids. These alterations can lead to compromised oxygen absorption by fish and subsequent mortality.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Samara S. Araujo, Gleyson T. A. Santos, Gabrieli R. Tolosa, Carlos T. Hiranobe, Eduardo R. Budemberg, Flavio C. Cabrera, Michael J. da Silva, Leonardo L. Paim, Aldo E. Job, Renivaldo J. dos Santos
Summary: The biodiversity of plant resources provides a renewable and sustainable component for various applications. In this study, vegetable waste was used as a filler in polymeric composites, leading to reduced vulcanization time. The resulting biocomposites showed thermal stability and strong matrix/filler interactions, making them a viable and ecological alternative to non-ecological composites.
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2023)
Article
Polymer Science
Renan Zunta Raia, Setsuo Iwakiri, Rosilani Trianoski, Alan Sulato de Andrade, Edemir Luiz Kowalski, Aldo Eloizo Job, Fabio Friol Guedes de Paiva
Summary: The objective of this research was to develop a more sustainable composite with the incorporation of fibers treated with NaOH into natural rubber. The mechanical properties of the composites changed, with increased hardness and young's modulus, and decreased tensile strength. However, there were no statistically significant differences in the physical properties. The electrical properties improved with higher fiber concentrations, suggesting a potential use of the wood-rubber composites for rubber artifacts with low rolling resistance. Based on the results, the WF24/CB36 mix was recommended for producing antistatic floors.
POLIMEROS-CIENCIA E TECNOLOGIA
(2023)
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)
