Article
Construction & Building Technology
Maximilian Schleiting, Kevin Klier, Niels Wiemer, Alexander Wetzel, Jan-Christoph Zarges, Hans-Peter Heim, Bernhard Middendorf
Summary: The use of micro fibres as reinforcement in Ultra-High Performance Concrete (UHPC) enhances its mechanical properties. To achieve an optimal bonding between fibre and cementitious matrix, a coating of fibres with a thermoplastic elastomer is proposed in this study. The pullout tests and flexural strength tests reveal that the coating improves the adhesive bond between fibre and UHPC matrix, but the results differ when inclined fibres are tested.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Polymer Science
Xiaoying Zhao, Tolulope Lawal, Mariane M. Rodrigues, Talen Geib, Yael Vodovotz
Summary: By using lignocellulosic fibers from invasive plants as reinforcing agents, the brittleness and high cost of PHBV thermoplastic were improved, resulting in biocomposites with enhanced thermal stability, restricted crystallization, reduced rigidity, and lower cost. These novel biocomposites performed similarly to conventional plastics like polypropylene, making them potential bio-alternatives for industrial applications such as semirigid packaging and lightweight auto body panels.
Article
Engineering, Manufacturing
Lin Tang, Zhiyong Yang, Yusheng Tang, Junliang Zhang, Jie Kong, Junwei Gu
Summary: The copolymer membrane and AHHFP grafted onto the surface of PBO fibres enhances the interfacial strength and reduces interfacial polarization of the wave-transparent laminated composites. The resulting 6F-PBO@P-GMA fibres/modified cyanate ester composites exhibit higher flexural strength and interlaminar shear strength compared to composites with pristine PBO fibres, with excellent wave-transparency properties at X-band.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Polymer Science
Clement Matthew Chan, Darren Martin, Emilie Gauthier, Paul Jensen, Bronwyn Laycock, Steven Pratt
Summary: Paunch, a solid residue from processed cattle stomachs, is an untapped waste stream that shows potential as a valuable source of fibers for the production of sustainable biocomposite materials. In this study, the characteristics of paunch fibers were compared to wood flour and ground buffel grass, and composites of the biopolymer PHBV and ground paunch were successfully produced. Mechanical property analysis showed that the composites had comparable properties to those with ground buffel grass.
Article
Agricultural Engineering
Atikur Rahman, Joseph Fehrenbach, Chad Ulven, Senay Simsek, Khwaja Hossain
Summary: The study highlights the potential of wheat bran as a natural fiber in manufacturing bio-based composites. Pre-treatment with sodium hydroxide increases cellulose content and enhances bending strength, but leads to reduced ductility and impact resistance.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Engineering, Environmental
Z. N. Diyana, R. Jumaidin, M. Z. Selamat, M. S. M. Suan, K. Z. Hazrati, Fahmi Asyadi Md Yusof, R. A. Ilyas, Sayed M. Eldin
Summary: In this study, a biodegradable thermoplastic cassava starch/beeswax blend reinforced with Pandanus amaryllifolius fibre (TCPS/BW/PAF) was successfully developed. The addition of Pandanus amaryllifolius fibre significantly improved the mechanical and thermal properties, as well as reduced the biodegradation rate. The TCPS/BW/PAF bio-composites showed potential for applications in biopolymer and bio-packaging industries.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Polymer Science
Do Van Cong, Nguyen Vu Giang, Tran Huu Trung, Pham Quoc Tuan, Nguyen Thi Thai, Do Quang Tham, Mai Van Tien, Dang Viet Quang
Summary: Chemical modification of jute fibres improved the interaction between JFs and PA11 matrix, resulting in enhanced mechanical and thermal stability of the biocomposite materials produced.
POLYMER INTERNATIONAL
(2021)
Article
Construction & Building Technology
Fernando Cos-Gayon Lopez, Javier Benlloch Marco, Victor Calvet Rodriguez
Summary: This study focuses on the effects of high temperatures on ribbed CFRP bars and their bond stress with concrete, investigating through pullout tests and compression tests to determine the influence of high temperatures on concrete resistance at the age of 180 days. The results show a significant decrease in bond stress for ribbed CFRP bars under high temperatures, while the influence of high temperature on concrete resistance at the age of 180 days is evident.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Manufacturing
F. Javanshour, A. Prapavesis, N. Pournoori, G. C. Soares, O. Orell, T. Parnanen, M. Kanerva, A. W. Van Vuure, E. Sarlin
Summary: This article introduces stiff and tough biocomposites prepared by in-situ polymerisation of poly (methyl methacrylate) and ductile non-dry flax fibres. The results show that composites processed with non-dry fibres have comparable shear strength but higher elongation at failure and toughness compared to composites processed with oven-dried fibres. Additionally, non-dry flax fibres significantly increase the perforation energy of flax-PMMA composites under low-velocity impact. The study also investigates the effect of non-dry fibres on fatigue life and failure mode of the composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Energy & Fuels
M. Mohan Prasad, S. M. Sutharsan, K. Ganesan, N. Ramesh Babu, T. Maridurai
Summary: This study investigates the effects of adding sugarcane bagasse biosilica fine particles on Opuntia dillenii fiber-reinforced epoxy resin composites. The study finds that silane surface-treated fiber and particles exhibit higher strength and thermal stability in the composites.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Materials Science, Composites
Dong Quan, Jiaming Liu, Liaojun Yao, Clemens Dransfeld, Rene Alderliesten, Guoqun Zhao
Summary: The adhesion between recycled carbon fibres (rCFs) and Polyphenylene-sulfide (PPS) fibres in rCF/PPS composites was tailored by UV-treatment of non-woven mats, leading to improved intralaminar fracture resistance and mechanical properties under tensile and shear loading conditions, but negatively affected interlaminar fracture resistance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Chiara Zarna, Sandra Rodriguez-Fabia, Andreas T. Echtermeyer, Gary Chinga-Carrasco
Summary: This study investigates the reinforcing ability of thermomechanical pulp (TMP) fibres on poly(lactic acid) (PLA) and evaluates its performance under different experimental parameters. The temperature is found to be the major factor affecting the strength and elongation of the material.
Article
Materials Science, Composites
Quentin C. P. Bourgogne
Summary: This paper presents a numerical study and experimental research on the influence of the geometry and orientation of fibers on the mechanical behavior of hemp fiber reinforced polypropylene. The results show that the complex geometry of the fibers can be approximated by a random 3D orientation of spherocylinder-shaped fibers, which simplifies the design and manufacturing process of parts made with such materials.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2023)
Article
Chemistry, Physical
Janez Slapnik, Yuanxi Liu, Robert Kupfer, Thomas Lucyshyn, Blaz Nardin, Gerald Pinter
Summary: This study introduces a novel polymer processing approach that combines low-temperature processing and fibre direct compounding to reduce thermal stress on thermosensitive components during compounding and injection moulding. The composites prepared using this new method showed improved tensile and storage modulus, despite exhibiting worse fiber dispersion and lower fiber degradation.
Article
Engineering, Manufacturing
Zheng Liu, Xiaoli Fan, Junliang Zhang, Zhiyong Yang, Yusheng Tang, Jianwei Li, Jie Kong, Junwei Gu
Summary: The introduction of hyperbranched structure and fluorine groups in epoxy-preFHBPBO significantly improved the mechanical properties and wave-transparent performance of PBO fibers reinforced BADCy resins composites. The addition of 7 wt% epoxy-preFHBPBO increased the flexural strength and interlaminar shear strength, while reducing dielectric constant and dielectric loss compared to PBO fibers/BADCy composites. Moreover, the volume resistivity and breakdown strength were also enhanced in PBO fibers/FHBPBO-co-BADCy composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Wenwu Zhang, Helezi Zhou, Bin Huang, Huamin Zhou, Xiongqi Peng
Summary: This paper investigates the tool-ply friction behavior of jute/PLA biocomposites in thermoforming. A pull-through friction testing device was developed to characterize the tool-ply friction behavior of jute/PLA prepreg at elevated temperature. The effects of alkali treatment, fiber orientation, normal force, and slipping velocity were studied, and a quantitative definition of tool-ply friction behavior was achieved. The results indicate a strong relationship between tool-ply friction behavior and woven and fiber structures, indicating hydrodynamic lubrication.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Stephen Clay, Wesley Ault, Alex Faupel, Caglar Oskay, Philip Knoth, Noam N. Y. Shemesh, Rami Haj-Ali, Uri Breiman, Ido Meshi, Ofir Shor
Summary: This paper presents an experimental investigation on the compression failure mechanisms of laminated carbon fiber reinforced composites under non-standard quasi-static loading. The results demonstrate the presence of interior kink bands, surface ply splitting, and delaminations, with each failure mechanism associated with different stress levels.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Bowen Zeng, Jinlong Yang, Zhi Ni, Yucheng Fan, Ziyan Hang, Chuang Feng
Summary: This study successfully improved the pyroelectric properties of PVDF films by preparing functionally graded graphene nanoplatelet (FG-GNP) reinforced PVDF composite films. The increase in the number of layers and the concentration of GNP near the surface of the composite film were found to enhance the pyroelectric properties and temperature stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shenghe Zhang, Fukai Chu, Weizhao Hu, Bibo Wang, Richard K. K. Yuen, Yuan Hu
Summary: This study improves the flame retardancy and mechanical properties of PBAT by synthesizing a phosphorus-containing intercalator and mixing it into the PBAT matrix.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Tharan Gordon, Michael R. Wisnom, Byung Chul Kim
Summary: Thickness tapering is a common strategy for efficient and lightweight composite structures, but it can introduce delamination sites. This study investigated the use of ply scarfing method to improve the compressive failure stress of tapered laminates made from thick unidirectional non-crimp fabrics. The results showed that ply scarfing suppressed delamination and increased the failure stress by 60%.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xin Wang, Yiting Qu, Junlei Bai, Fujun Xu, Bin Ding, Xiaohua Zhang
Summary: A solution-based strategy is proposed to achieve a strong bond between fibers and matrix in powder materials, resulting in improved mechanical properties, thermal conductivity, and fracture strain of the composites. The method also offers advantages such as enhanced powder flowability and thermal stability.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Xing Zhou, Guosheng Wang, Dexiang Li, Qi Wang, Keming Zhu, Yaya Hao, Yueyang Xu, Neng Li
Summary: This study successfully synthesized polyurethane elastomer by using degraded products from waste PET, and fabricated composites with carbon nanotubes for strain sensors. The composites showed good mechanical and durability performance, indicating a potential method for recycling waste PET into valuable and functional materials.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Fei Peng, Tingting Shan, Rongrui Chen, Jiulong Shi, Di Liu, Guoqiang Zheng, Chaojun Gao, Kun Dai, Chuntai Liu, Changyu Shen
Summary: Janus polymer films with distinct surface performance and potential applications were successfully prepared by vacuum-assisted hot-compressing method and spray coating. These films exhibit decent actuation performance and rapid selfpowered sensing property, and can be used for real-time acetone monitoring system.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Biao Cheng, Huafeng Quan, Yuefeng Zhang, Dong Huang, Tongqi Li, Chong Ye, Xingming Zhou, Zhen Fan, Yafang Zhang, Ting Ouyang, Fei Han, Hongbo Liu, Jinshui Liu
Summary: In this study, a binary graphite network was constructed to improve the thermal conductivity and control the formation of micrometer-scale open pores in phase change composites. The developed composites showed a high thermal conductivity and phase change enthalpy, making them promising for thermal control in space optical-mechanical systems and other critical aerospace components.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Shihao Zuo, Fei Cheng, Guangming Yang, Jiangzhou Li, Yongjun Deng, Guangjun Gou, Xuejun Cui, Yunsen Hu, Xiaozhi Hu
Summary: Micro-arc oxidation (MAO) treatment was used to modify aluminum (Al) alloys in order to improve bond strength with carbon fiber reinforced polymer (CFRP). The treatment successfully created a porous surface with better hardness, roughness, and wetting, and introduced resin pre-coating (RPC) and carbon nanotube (CNT) fiber bridging to improve the bonding interface. The combined treatments significantly increased the bond strength by up to 156.1%, indicating the feasibility of MAO as an alternative method for manufacturing high-performance Al-CFRP composites in industrial production.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
James Kratz, Christophe Paris, Karolina Gaska, Vincent Maes, Ivana Partridge, Philippe Olivier
Summary: Faster heating rates and higher process temperatures can reduce the total process time while achieving the same degree-of-cure. Thermal analysis shows that thermoplastic interleaf particles melt at the recommended curing temperature. A short dwell at a lower temperature can prevent the mixing of thermoplastic particles and thermoset pre-polymer.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Thomas Maierhofer, Evripides G. Loukaides, Craig Carr, Chiara Bisagni, Richard Butler
Summary: Joining thermoset composites via resistance welding provides an efficient method for aerospace structures with benefits such as high-volume manufacturing and simplified surface preparation. The influence of welding parameters on joint performance is assessed using Mode I fracture toughness testing. A Bayesian approach is employed to select high-performance parameters.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Jiangan You, Ling Cai, Ronghua Yu, Haiping Xing, Jian Xue, Ying Li, Zhiwei Jiang, Dongmei Cui, Tao Tang
Summary: In response to the global environmental pollution crisis caused by waste plastics, recyclable design is an effective solution. A CPVC/PUA nanocomposite foam was developed using the plasticizing-foaming-reinforcing strategy, combined with catalytic carbonization. The foam exhibited high expansion ratio, robustness, solvent resistance, flame-triggered shape memory effect, and ablation resistance. The foam could be directly upcycled into functional carbon foam with attractive electromagnetic interference shielding performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Siyao Chen, Zhiyu Chen, Yangling Ou, Junwei Lyu, Junning Li, Xiangyang Liu, Yang Liu
Summary: In this study, we demonstrated the significant effect of composite interface on temperature increase in electrical heaters. By selectively fluorinating the outer walls of carbon nanotubes and compositing them with cellulose nanofibers, improved interfacial phonon diffusion was achieved, leading to a higher temperature increase rate.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)
Article
Engineering, Manufacturing
Yanjun He, Agnieszka Suliga, Alex Brinkmeyer, Mark Schenk, Ian Hamerton
Summary: A new thermoset resin system based on a polybenzoxazine blend showed good performance under high ATOX irradiation. It reduced erosion yield by forming a silicon-rich surface layer and improved the mechanical properties of CFRP laminates.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2024)