Article
Materials Science, Composites
Erick S. S. Guerra, Bruna L. Silva, Jose D. D. Melo, Gerhard Kalinka, Ana P. C. Barbosa
Summary: This study investigates the influence of thermoplastic particles on the fiber-matrix interfacial properties of a glass fiber reinforced epoxy matrix composite, and demonstrates the self-healing ability of the thermoplastic modified epoxy.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Monica Penas-Caballero, Enrico Chemello, Antonio Mattia Grande, Marianella Hernandez Santana, Raquel Verdejo, Miguel A. A. Lopez-Manchado
Summary: Self-healing materials offer a potential solution to the problem of damage to fibre-reinforced plastics (FRPs). By using poly(methyl methacrylate) (PMMA) as a self-healing agent, the study explores its effectiveness when blended with the matrix or applied as a coating to carbon fibres. The results show that blending strategy does not enable healing capacity, while coating the fibres with PMMA achieves up to 53% fracture toughness recovery.
Article
Chemistry, Multidisciplinary
C. Naga Kumar, M. N. Prabhakar, Mohamad Tarmizie Hassim, Jung-il Song
Summary: Two-component self-healing carbon/epoxy composites were fabricated by incorporating healing agents between carbon fiber laminates. The encapsulated healing agents demonstrated enhanced mechanical properties and autonomous healing characteristics, as confirmed through various analysis techniques.
Article
Mechanics
Ivica Smojver, Dominik Brezetic, Darko Ivancevic
Summary: In this study, a multi-scale framework is used to model the low velocity impact and post-impact healing of woven intrinsically self-healing FRP composite structures. The developed model accurately predicts damaging mechanisms and fiber damage, which is validated by experimental results.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
Wenhu Wan, Rulin Shen, Juntao Tang, Yangbo Xu, Xiangfu Zou, Haibo Guo
Summary: In this study, non-destructive self-healing carbon fiber/epoxy (CF/EP) composites were developed using core-shell nanofibers with healing agent in the core and carbon nanotubes in the shell. The results showed that composites with suitable self-healing components had increased flexural strength, flexural modulus, tensile strength, tensile modulus, and Mode II interlaminar fracture toughness compared to the pristine CF/EP. The composite with 1 wt% CNTs exhibited a healing flexural strength of 93.57% after 24 hours, higher than the initial strength of composites without self-healing components.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Atif Javaid, Hafiz Tanveer Ashraf, Muhammad Mustaghees, Arslan Khalid
Summary: This study investigates the fire-retardant performance of lightweight sandwich composites with modified epoxy impregnated carbon and glass fabric reinforcements and an aluminum honeycomb core. It demonstrates improved fire-retardant properties through phosphoric acid treatment of carbon fiber reinforcements and impregnation of epoxy with ammonium polyphosphate (APP) additive. The laboratory aging behavior and mechanical properties of the composites are evaluated to determine the panels' degradation resistance and strength under extreme conditions.
POLYMER COMPOSITES
(2021)
Article
Mechanics
R. Panciroli, O. Giannini
Summary: This paper aims to compare the impact resistance of natural fiber composites against a similar glass-fiber counterpart. Experimental study and numerical simulations provide insights on the major damage mechanism and the difference in impact resistance, mainly attributed to the lower fiber strength in natural fiber composites. Research suggests that modeling parameters could be utilized to improve the reliability of the numerical solution in terms of energy absorption during the impact.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Binbin Zhang, Hao Fan, Weichen Xu, Jizhou Duan
Summary: Cracks and mechanical damages are common in protective epoxy coatings, causing localized failure, corrosion attack, and safety hazards. This study developed a self-healing epoxy coating using 2-aminophenyl disulfide as a hardener, which effectively repaired micro-scale mechanical scratches and exhibited superior self-healing and corrosion resistance properties. The findings provide a new design strategy for smart and multi-functional protective coating materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Mechanical
Santanu Choudhury, Chandra Sekher Yerramalli, Anirban Guha
Summary: An analytical model considering strain rate and temperature effects of the matrix material was developed for glass fabric reinforced polymer (GFRP) composite in armor applications. The model predicted that the ballistic limit velocity of GFRP composites increases with decreasing temperature, and a significant amount of kinetic energy is dissipated in the form of strain energy and shear plug formation. The thickness of shear plug at the ballistic limit increases at lower temperatures, indicating a shift in failure mechanism towards shear. The inclusion of rate dependency effects of the matrix did not significantly change the ballistic limit predictions at lower temperatures.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Engineering, Environmental
Haojie Gong, Jianqiao Wu, Zihan Zhao, Zhongkai Guo, Liang Gao, Baoyan Zhang, Min-Hui Li, Jun Hu
Summary: This study introduces a novel high-performance GFRCs material with pre-damage indication and recyclability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Haojie Gong, Jianqiao Wu, Zihan Zhao, Zhongkai Guo, Liang Gao, Baoyan Zhang, Min-Hui Li, Jun Hu
Summary: Predicting barely visible damage on high-performance glass-fiber-reinforced composites is essential in preventing material failure. This study demonstrates the synthesis of a self-reporting and recyclable composite material through the use of a disulfide bond-tailored epoxy matrix.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Composites
M. Bunea, V. Bria, F. S. Silva, I. G. Birsan, M. Buciumeanu
Summary: The study showed that fiber orientation at different angles has a positive impact on the impact response of epoxy composite materials, especially in the case of aramid fabric reinforced composites. Additionally, the addition of fillers into the matrix resulted in an improved impact response for hybrid fabric reinforced composites compared to pure fabric reinforced composites.
APPLIED COMPOSITE MATERIALS
(2021)
Article
Materials Science, Composites
Wenqi Cui, Ting Hu, Shuguang Yang, Baoquan Huang, Qingrong Qian, Qinghua Chen, Fubin Luo
Summary: In this study, a thermally conductive epoxy/graphite composite with excellent self-healing and reprocessability is prepared using covalent adaptable networks. The influence of graphite on the rheology, reprocessing, and self-healing properties of epoxy is studied. The highly thermally conductive bulk composites are constructed via multilayered stacking up and self-healing based on the film composites prepared using a rolling method. The high thermal conductivity is achieved by the highly aligned graphite induced by the rolling process. This work provides a new strategy for preparing recyclable and highly thermally conductive epoxy.
POLYMER COMPOSITES
(2023)
Article
Engineering, Multidisciplinary
F. Benazzo, D. Rigamonti, P. Bettini, G. Sala, A. M. Grande
Summary: Technologies to control and reduce delamination damage in fibre reinforced polymer composites involve the use of fibre optic sensors and self-healing polymers. By studying a high-performance epoxy vitrimer, it has been found that laminates with a larger proportion of dynamic crosslinker exhibit better repair abilities but lower thermal properties.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Fang Chen, Hua Xiao, Zhong Quan Peng, Ze Ping Zhang, Min Zhi Rong, Ming Qiu Zhang
Summary: The study developed a thermally conductive and self-healing glass fiber cloth reinforced epoxy composite by functionalizing hexagonal boron nitride with a natural substance, showing improved thermal conductivity and mechanical strength; the composite exhibited excellent thermal conductivities at 35.0 wt% h-BN content and achieved interlaminar crack healing and thermal conductivities recovery through a reversible reaction; the resulting composite also demonstrated controlled degradability and recyclability.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Polymer Science
Ming-Xuan Li, Min-Zhi Rong, Ming-Qiu Zhang
Summary: This study presents an innovative solution based on mechanochemically initiated reversible cascading variation of metal-ligand complexations, which autonomously increases the crosslinking density of metallopolymer networks and blocks stress-induced tiny fracture precursors from growing, fundamentally enhancing the durability of polymers in service.
CHINESE JOURNAL OF POLYMER SCIENCE
(2021)
Article
Materials Science, Composites
Hua Xiao, Ze Ping Zhang, Zi Xin Huang, Min Zhi Rong, Ming Qiu Zhang
Summary: The study successfully achieved the conflicting goals of high thermal conductivity and high flexibility in composites by using dihydromyricetin and high molecular weight acrylate copolymer as surface modifiers and adhesive in the preparation of boron nitride paper, allowing for the production of flexible electronic components with excellent thermal conductivity and tensile properties.
COMPOSITES COMMUNICATIONS
(2021)
Article
Polymer Science
Yang You, Min Zhi Rong, Ming Qiu Zhang
Summary: This study proposes a novel strategy for preparing reversibly interlocked networks with enhanced mechanical properties by introducing in situ inter-macromolecular ionic interactions. Through a proof-of-concept transparent interlocked network composed of immiscible polymer chains, it is shown that the interlocking architecture and inter-macromolecular ionic interactions mutually promote each other, leading to the increase in strength, toughness, and creep resistance of the interlocked networks through multilevel energy consumption mechanisms. The inclusion of reversible Diels-Alder bonds and Schiff base allows for self-healing and reprocessable properties in the networks, potentially leading to the development of new polymeric materials with advanced multifunctionality.
Article
Materials Science, Composites
Hua Xiao, Zi Xin Huang, Ze Ping Zhang, Min Zhi Rong, Ming Qiu Zhang
Summary: A facile strategy for effectively constructing in-plane and through-plane thermal conduction paths in polyimide (PI) and its flexible copper clad laminates (FCCLs) was reported by incorporation of hexagonal boron nitride (h-BN) in a controlled manner. The specific sea-island architecture allowed the preparation of highly thermally conductive flexible PI film and its FCCLs at relatively lower total boron nitride loading. The results of the current work may open a new avenue for promoting the practical application of thermally conductive PI based FCCLs.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Juan Ye, Guanghong Lin, Ziqian Lin, Haoyu Deng, Junjie Huang, Hongping Xiang, Min Zhi Rong, Ming Qiu Zhang
Summary: In this study, a UV-irradiation/thermo dual-induced self-healing polyurethane elastomer was successfully prepared by tuning the UV irradiation intensity, photoinitiator dosage, and content of disulfide compound (SS-MA). This elastomer exhibited high tensile strength and good self-healing capability, making it suitable for applications in smart coatings and other fields.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Article
Polymer Science
Zhi Rong Ou, Wei Li Peng, Min Zhi Rong, Ming Qiu Zhang
Summary: A novel strategy utilizing reversible boronic ester bonds and imine bonds has been proposed for controllable depolymerization and recovery of polymer blends. Through the preparation of reversibly interlocked polymer networks (RILNs) from two preformed crosslinked polymers, a cascading effect between boronic ester bonds and imine bonds is enabled, allowing controlled depolymerization and recovery.
Article
Polymer Science
Shujun Tan, Yao Wu, Yang Hou, Haoyu Deng, Xiaoxuan Liu, Shoujuan Wang, Hongping Xiang, Minzhi Rong, Mingqiu Zhang
Summary: This study focuses on improving the toughness of 3D printing resin by modifying waste nitrile rubber powders (WNRP). The results show that this strategy significantly enhances the toughness of the resin while reducing waste.
Article
Polymer Science
Jingqi Ji, Shiwen Huang, Shumei Liu, Yanchao Yuan, Jianqing Zhao, Shijie Zhang
Summary: This study synthesized a novel biobased waterborne epoxy resin with flame retardancy and antibacterial ability, and investigated its application in coatings.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Chemistry, Multidisciplinary
Y. You, M. R. Fu, M. Z. Rong, M. Q. Zhang
Summary: By interlocking thermoresponsive and ultraviolet-responsive networks, the material can have both reversibility and dimensional stability, as well as improved creep resistance. The photo-reversible switch mechanism of the ultraviolet-responsive network allows for repeated releasing and reimposing of constraints on the neighboring thermoresponsive network.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Wan Ting Dai, Zhen Hua Xie, Yu Bin Ke, Yang You, Min Zhi Rong, Ming Qiu Zhang, Chun Yong He, Han Qiu Jiang, Hua Yang
Summary: The significantly improved mechanical properties of reversibly interlocked polymer networks (ILNs) originate from their unique interlocked structure. The study reveals that ILNs can maintain homogeneity and dissipate more mechanical energy through internal friction after stretching. These findings provide guidance for the rational design of high-performance multicomponent polymer materials.
MATERIALS TODAY PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Yanan Huang, Guiqing Dang, Min Zhu, Longfei Fan, Minzhi Rong, Mingqiu Zhang
Summary: Reversible shape memory polymers with a broad melting temperature range were developed to overcome the limitation of existing polymers. The polymers were able to memorize multiple temporary shapes through a thermal programming process. By selectively activating partial melting and recrystallization at different temperatures, the polymers demonstrated reversible triple, quadruple, and quintuple shape memory effects. This research may have significant implications for the application of reversible shape memory polymers.
APPLIED MATERIALS TODAY
(2023)
Article
Materials Science, Composites
Yi Xi Song, Wei Zeng, Min Zhi Rong, Ming Qiu Zhang
Summary: A sunlight self-healing thermoelectric generator that harvests energy from the human body is reported in this work. The self-healing capacity is achieved by using a self-healing polyurethane, and the thermoelectric component is composed of an organic-inorganic composite. The composite film exhibits improved thermoelectric performance and both p-type and n-type films have high healing efficiencies.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Wan Ting Dai, Jiawen Hou, Fenfen Wang, Yang You, Pingchuan Sun, Min Zhi Rong, Ming Qiu Zhang
Summary: Reversibly interlocked polymer networks (RILNs) are formed through topological rearrangement of two cross-linked polymers with reversible covalent bonds. This study employs solid-state nuclear magnetic resonance spectroscopy to investigate the microstructures of RILNs, revealing that macromolecular chains from different subnetworks interlace on the molecular level. The findings provide insights into the authentic microstructures of RILNs and aid in the design of new RILNs.
Article
Chemistry, Multidisciplinary
Guang Sheng Cao, Ze Ping Zhang, Min Zhi Rong, Ming Qiu Zhang
Summary: A novel approach to prepare high-performance continuous regenerated keratin fibers with wool-like structure using cortical cells and linear keratin from wool waste as reinforcement and adhesive was proposed. The regenerated fibers exhibited similar mechanical properties, thermal stability, dyeing property, moisture absorption capability, and antistatic resistance to wool, while containing a low amount of synthetic chemicals.
Article
Chemistry, Multidisciplinary
Sheng Jie Yuan, Zhong Quan Peng, Min Zhi Rong, Ming Qiu Zhang
Summary: A novel strategy based on interlocked polymer networks is proposed to enhance the thermal conduction of liquid crystalline epoxy. The interlocked networks show significantly increased thermal conductivity compared to the parent single-LCE networks. The technology developed in this study has remarkable potential for future applications.
MATERIALS CHEMISTRY FRONTIERS
(2022)
