Article
Materials Science, Composites
Hongguang Wang, Lanjie Yang, Hao Wu
Summary: This study investigated the preparation and mechanical properties testing of epoxy-based flax and glass HFRP composites, finding that bending properties had a significant positive effect on hybrid composites.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Composites
Abir Saha, Santosh Kumar, Divya Zindani
Summary: The study investigates the effect of water absorption on the thermo-mechanical properties of flax-hemp-reinforced epoxy composites, showing that hybrid composites perform better in terms of water absorption and thermal conductivity, indicating potential benefits of using hybridization in composite materials.
POLYMER COMPOSITES
(2021)
Article
Green & Sustainable Science & Technology
Shashi Prakash Dwivedi, Rajeev Agrawal, Shubham Sharma
Summary: In this study, waste generated by leather industries, specifically containing chromium, was used to extract collagen powder for reinforcing aluminum. By optimizing the parameters of the friction stir process, the aluminum-based composite showed enhanced tensile strength and hardness compared to the base material. Uniform distribution of reinforcement particles was observed at the optimum combination of FSP parameters.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2021)
Article
Polymer Science
Kepa Zulueta, Aizeti Burgoa, Inaki Martinez
Summary: The influence of hygrothermal aging on epoxy-based C-SMC samples was studied, showing effects on thermomechanical properties but no degradation effects on mechanical response.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Polymer Science
Samia Adil, Ismail Lazoglu
Summary: This article provides a comprehensive review of additive manufacturing of carbon fiber-reinforced polymers (CFRPs), including short and continuous fiber manufacturing methods. The mechanical characterization and analytical techniques for CFRPs are also discussed. The wide applications of short and continuous CFRPs in biomedical, electronics, and aerospace industries highlight the importance of research and development in this field. However, there is still a gap between research and commercialization of additive manufacturing of short and continuous CFRPs.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
Jeroen Staal, Edgar Smit, Baris Caglar, Veronique Michaud
Summary: This study investigates methods to control the heat balance in radical induced cationic frontal polymerisation (RICFP) processing of fibre reinforced polymers (FRPs). The heat generation was controlled by adjusting the initiator concentration, and using highly insulating moulds to limit heat losses improved the front characteristics and curing degrees. An optimised mould configuration allowed for self-sustaining RICFP in FRPs with fibre volume fractions (Vfs) up to 45.8%, surpassing previously reported maxima.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Composites
Abd Baghad, Khalil El Mabrouk
Summary: Process parameters of the autoclave cure method play a critical role in controlling the microstructure and physical and mechanical properties of composite laminates. Temperature significantly affects the degree of cure, while pressure has the most significant linear effect on density. Vacuum and pressure, temperature and pressure, and pressure alone also affect fiber volume fraction. Only pressure and vacuum have a significant effect on void content. The predicted responses using quadratic models are in good agreement with experimental values.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Kimberly Miller McLoughlin, Amin Jamei Oskouei, Michelle K. Sing, Alireza Bandegi, Sarah Mitchell, Jayme Kennedy, Thomas G. Gray, Ica Manas-Zloczower
Summary: Cross-linked EVA is widely used in demanding applications and its thermomechanical properties are influenced by various factors. The content of vinyl acetate, molecular weight, and chain topology affect the crystallinity and crystallite size of the material. Cross-linking reduces the crystallinity compared to un-cross-linked EVA. By controlling the properties and degree of cross-linking, the performance properties of cross-linked EVA can be adjusted. Understanding these effects enables material selection and property adjustment to meet the demands of different applications.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Ioannis Ioannou, Paraskevas Kyriacou, Marios Pantelas, Ioannis Pashalidis, John Makris, Spyros Rallis, Giachalis Kostas, Kyriakos Avraam, Theodora Krasia-Christoforou
Summary: The study focuses on the fabrication and thermomechanical characterization of fully recycled composite materials based on HDPE reinforced with bio-natural carbonized Luffa cylindrica inclusions. The use of the twin roll mill process enabled the production of polymer composites with variable c-LC content, with morphological and thermomechanical analysis confirming the reinforcing effect of biochar inclusions on HDPE thermoplastic. This opens the way for the potential use of such fully-recycled biochar thermoplastic composite materials in structural and semi-structural applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Lucas de Mendonca Neuba, Rai Felipe Pereira Junio, Andressa Teixeira Souza, Magno Torres Carvalho, Maria Eduarda Araujo Ribeiro, Benjamin S. Lazarus, Artur Camposo Pereira, Sergio Neves Monteiro
Summary: A recent study has shown that incorporating 30% CM sedge fibers improves the impact resistance and tensile elastic modulus of epoxy composites, with minimal effects on their thermogravimetric parameters. Further research is needed to fully understand the dynamic mechanical and thermal properties of these composites for potential engineering applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Mechanics
A. R. Rozyanty, S. F. Zhafer, Z. Shayfull, I Nainggolan, L. Musa, L. T. Zheing
Summary: This study investigates the effects of retting processes on kenaf fiber-reinforced unsaturated polyester composites, finding that water retting resulted in higher tensile strength while mechanical retting led to greater water absorption. The results indicate that water retting yielded better mechanical and water absorption properties compared to mechanical retting across all different fiber loadings.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Environmental
A. Ronaldo Anuf, K. Ramaraj, Vishnu Sankar Sivasankarapillai, Ragupathy Dhanusuraman, J. Prakash Maran, G. Rajeshkumar, Abbas Rahdar, Ana M. Diez-Pascual
Summary: This study investigates the impact of electro coagulation (EC) method on the treatment of rice mill waste using two different electrode materials (iron and aluminum). The study evaluates the influence of various parameters on the reduction of COD, TDS, and TSS in the waste. The results indicate that the aluminum electrode is more effective in treating rice mill waste compared to the iron electrode using the EC method.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Materials Science, Textiles
Tianyun Wan, Huihuang Ma, Zijian Wang, Chuanjie Fan, Xiaodong Zhou
Summary: In this research, a combined process of the double powder impregnation method and the melt homogenization method was used to prepare CF/PEEK prepreg tape, which successfully solved the problems of uneven resin distribution and inadequate fiber impregnation in commonly used prepreg tape preparation methods. By constructing an impregnation model and conducting experiments, the optimal process parameters for reducing porosity were determined and verified.
FIBERS AND POLYMERS
(2022)
Article
Polymer Science
Andra-Ionela Ghizdareanu, Alexandra Banu, Diana Pasarin, Andreea Ionita (Afilipoaei), Cristian-Andi Nicolae, Augusta Raluca Gabor, Delia Patroi
Summary: The effects of enzymatic hydrolysis on the mechanical properties of starch-based films were investigated using alpha-amylase from Bacillus amyloliquefaciens. The enzymatic hydrolysis process parameters and the degree of hydrolysis (DH) were optimized using a Box-Behnken design and response surface methodology. The resulting hydrolyzed corn starch films showed improved mechanical properties, with higher water absorption index and transparency, as well as a more compact molecular structure and better energy dissipation properties.
Article
Construction & Building Technology
Yao Yao, Boqiao Wang, Yan Zhuge, Zhaohui Huang
Summary: This study investigated the performance and fire resistance of hybrid basalt-polypropylene fiber reinforced mortar. The experimental results showed that the compressive properties of the mortar specimens first increased and then sharply decreased with increasing temperature, while the trend of flexural strength was different. The use of hybrid fibers improved both the compressive strength and flexural strength of the mortar under certain conditions.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Characterization & Testing
Abd Baghad, Khalil El Mabrouk, Sebastien Vaudreuil, Khalid Nouneh
Summary: The mechanical properties of carbon/epoxy laminates are found to be dependent on pressure and microstructure. The study explores the correlation between manufacturing parameters and the resulting mechanical properties, aiming to establish an optimal autoclave pressure route that minimizes porosity without compromising mechanical properties.
POLYMERS & POLYMER COMPOSITES
(2021)
Article
Materials Science, Composites
Abd Baghad, Khalil El Mabrouk, Sebastien Vaudreuil, Khalid Nouneh
Summary: The study focuses on the thermomechanical and mechanical properties of autoclaved woven carbon fiber/epoxy composite laminate under different operating temperatures and holding times. As the operating temperature increases, the rigidity and stiffness of the epoxy resin matrix decrease, leading to a progressive decrease in all mechanical properties of the laminate.
POLYMER COMPOSITES
(2022)
Article
Polymer Science
Abd Baghad, Khalil El Mabrouk
Summary: The study investigated the influence of autoclave cure vacuum on the microstructure and mechanical properties of a woven carbon fiber/epoxy resin composite laminate AS4/8552S. It was found that certain physical parameters such as thickness, density, and void content reached a steady state at a vacuum pressure of -0.04 MPa. The vacuum condition significantly improved key physical parameters of the composite material.
IRANIAN POLYMER JOURNAL
(2022)
Article
Materials Science, Composites
Abd Baghad, Khalil El Mabrouk
Summary: Process parameters of the autoclave cure method play a critical role in controlling the microstructure and physical and mechanical properties of composite laminates. Temperature significantly affects the degree of cure, while pressure has the most significant linear effect on density. Vacuum and pressure, temperature and pressure, and pressure alone also affect fiber volume fraction. Only pressure and vacuum have a significant effect on void content. The predicted responses using quadratic models are in good agreement with experimental values.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2023)
Review
Chemistry, Physical
Abd Baghad, Khalil El Mabrouk
Summary: This review summarizes recent advances in understanding the selection criteria, effect of reinforcement, preparation methods, and additive manufacturing (AM) processes on the properties of lightweight metal matrix composites (LMMCs). The preparation methods of particlereinforced LMMCs, including ex situ and in situ synthesis, are discussed, as well as the effect of various reinforcement and AM processes (such as powder bed fusion and direct energy deposition) on the mechanical properties of LMMC parts.
JOHNSON MATTHEY TECHNOLOGY REVIEW
(2023)
Proceedings Paper
Materials Science, Multidisciplinary
Abd Baghad, Khalil El Mabrouk
Summary: This study investigated the effects of different isotherm temperatures on the thermal behavior and physical properties of quasi-isotropic carbon fiber reinforced polymer composite laminates. The curing kinetics of a new commercial prepreg, Hexply (R) 8552S, were studied using isothermal differential scanning calorimetry (DSC) and different models were used to determine the curing kinetic parameters. The results showed that the isotherm temperature significantly influenced the final degree of cure, density, and void content.
MATERIALS TODAY-PROCEEDINGS
(2022)