Article
Materials Science, Ceramics
Haixia Yang, Xiandong Yue, Feng Ye
Summary: Porous Si3N4/silica aerogel composites were prepared by sol impregnation, and their microstructure evolution and properties at high temperature were studied. The porous Si3N4 effectively inhibited the pore collapse of the aerogel and improved its temperature resistance. As the temperature increased, the specific surface area of the composite decreased while the pore size and thermal conductivity increased. The composite exhibited low thermal conductivity at 1300 degrees C, making it suitable for thermal insulation use in high-temperature environments.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Polymer Science
Laila Khan, Jong Seop Kim, Seok-Hwan Huh, Bon Heun Koo
Summary: A unique Sol-gel-based method was used to deposit flame-retardant coatings on cotton fabric. SEM analysis revealed significant coverage of the fabric by the coatings. ATR-FTIR and EDS analysis provided compositional information of the coated samples. TGA and VFT tests showed that the coatings obtained for 5 h and zero heat-treatment time exhibited high resistance and excellent combustion properties, with a 28.86% char residue obtained for one sample (ET-5h-RT).
Article
Chemistry, Applied
Abdullah Tav, Yahya Oz, Halil I. Akyildiz
Summary: The fragility of silica-based aerogels limits their potential use, but this study presents a method to synthesize more stable aerogel blankets by in situ deposition with the use of surfactants. The results show that the surfactants promote a more organized structure within the aerogel and improve its thermal conductivity performance. This research has important implications for the applications of aerogels in various industries.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Congcong Rong, Jianan Zhang, Song Chen, Yixuan Wang, Toshiyuki Ikoma, Xiaona Li, Weiyi Chen
Summary: Silica hollow microspheres were prepared as biocompatible cell carriers using emulsified gelatin microspheres as sacrificial templates. SEM observations showed their spherical morphology with a hollow structure and a diameter of 50-200 μm. FT-IR spectrum revealed the presence of Si-O-Si bonds. Gelatin microspheres served as supporting matrix and sacrificial templates for the formation of hollow structure. The silica hollow microspheres were found to be biocompatible and supported cell attachment and proliferation when seeded with osteoblast MC3T3-E1 cells, indicating their potential as biocompatible cell carriers.
Article
Thermodynamics
Selay Sert Cok, Nilay Gizli
Summary: In-situ modified silica aerogels were synthesized as potential thermal insulation materials via a two-step sol-gel process under ambient pressure. Different organosilanes were used as silica sources, and the heat transfer properties were investigated through thermal conductivity measurements and theoretical models. The study revealed that the density and microstructure of the samples directly affected the heat transfer mechanisms.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Polymer Science
Marius Horvath, Katalin Sinko
Summary: The aim of this research was to develop a new, low-cost, and low-energy-consuming method for preparing highly porous silica systems. The precursor gel systems were synthesized using sol-gel chemistry with TEOS and water glass. The impact of the chemical composition, catalysts, pH, and additives on the structure and porosity of the cryogels was investigated. The gel systems were subjected to freeze-drying to obtain porous cryogel silica products with hierarchical structures. The freeze-drying process conditions were also studied to increase the porosity. Small angle X-ray measurements, scanning electron microscopy, and infrared spectroscopy were used to study the gel and cryogel systems.
Article
Materials Science, Multidisciplinary
Zhiqiang Sun, Jian Zhang, Yao Han, Bingli Hun, Yi Lv, Hao Zhang, Yingmin Zhao
Summary: This study investigates the silica sol-gel reaction using a freeze-casting method, revealing that the compressive strength of the frozen gels increases as the freezing temperature decreases.
Article
Engineering, Chemical
Akira Miwano, Takehiro Yonezawa, Noriko Yamauchi, Kouichi Nakashima, Yoshio Kobayashi
Summary: The study suggests a new coating technique for thermistors using zirconia, which shows excellent chemical resistance and electrical insulation properties. Pre-silica coating on the substrate can improve the adhesion of ZrO2 films.
Review
Materials Science, Ceramics
Cecilia Ortiz, Erienne Jackson, Lorena Betancor
Summary: The immobilization of enzymes using biomimetic silica nanoparticles is an efficient method for enhancing stability in biotechnological applications. This strategy offers biocompatibility, mild synthetic conditions, and rapid polymerization reactions. Recent research has focused on modifications of the synthetic approaches and the use of combined materials or additives to improve enzyme immobilization. This review highlights the importance of the immobilization strategy and its impact on enzyme stabilization and biocatalyst properties.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Takashi Hamada, Taku Goto, Sakino Takase, Kenta Okada, Akira Uedono, Joji Ohshita
Summary: The influence of residual alkoxy groups and substituents on the thermal insulation property of polysilsesquioxane gel films was investigated. It was found that the amount and type of residual alkoxy groups affected the thermal diffusivity of the gel films. Additionally, the presence of organic substituents on the silicon atom affected both the thermal insulation property and thermal stability of the gel films.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Adele R. Latypova, Maxim D. Lebedev, Ilya A. Tarasyuk, Alexander I. Sidorov, Evgeniy V. Rumyantsev, Artur S. Vashurin, Yuriy S. Marfin
Summary: A one-step synthesis method for organomodified silica materials using a special surfactant DDAO was developed in this study, eliminating the need for heat treatment. SEM images revealed that all obtained materials had similar spherical morphology with a particle diameter of about 500 nm. The catalytic activity experiments showed that the amino-modified matrix exhibited the highest activity, while the phenyl-modified matrix demonstrated low activity due to hydrophobic interactions hindering product diffusion.
Article
Materials Science, Ceramics
Shengjia Wang, Chenchen Xu, Xuebin Qiao
Summary: A series of Eu3+-activated Y2SiWO8 red phosphors were prepared and characterized, showing excellent emission intensity and optical properties. The optimum Eu3+ dopant concentration is 6%, with concentration quenching occurring beyond this concentration. Upon excitation by n-UV light, the phosphor emits a bright red light.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Zhao-yang Fan, Chao Xiong, Jun-hui Yin, Yun-fei Jia, You-chun Zou, Qing-song Ma
Summary: Continuous carbon fiber reinforced alumina matrix composites were fabricated and their high-temperature failure behavior was studied in this paper. The composites exhibited low porosity, high bending strength, and fracture toughness. The strength retention rate of the composites after high-temperature testing was relatively high.
SCIENCE OF ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Hang Li, Chi Wang, Zhaohui Wang, Mengying Zhang, Da Liu, Guangming Yuan
Summary: In this study, mineralised wood-hydrogel composites with efficient flame retardant properties were prepared by impregnating delignified wood with biocompatible and mineral-inducing gelatine hydrogels, followed by in situ mineralisation of silica on the hydrogel and wood pores via the sol-gel method.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Wenbo Liao, Liuyong Zou, Shaona Zheng, Lili Zhao, Xiangxuan Huang, Lingyun Ye, Guoyu Zhong
Summary: Polyhedral oligomeric silsesquioxane (POSS)-containing fluorinated poly(styrene-acrylate)/SiO2 (POSS-FPSA/SiO2) composite materials were prepared by preemulsification and direct blending method. The SiO2 particles were induced aggregated onto the surface of POSS, leading to a raspberry-like structure. XPS spectra showed two different types of Si-O bonds on the surface of the composite films, with one related to Si-O groups of SiO2 and the other attributed to Si-O-Si groups obtained from sol-gel processes. Additionally, increasing SiO2 content promoted sol-gel reactions and improved thermal stability of the composite films.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2021)
Article
Engineering, Chemical
Christopher Afacan, Ravin Narain, Joao B. P. Soares
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Biochemistry & Molecular Biology
Diana Diaz-Dussan, Yi-Yang Peng, Jayeeta Sengupta, Rebecca Zabludowski, Madeleine K. Adam, Jason P. Acker, Robert N. Ben, Piyush Kumar, Ravin Narain
Article
Engineering, Chemical
Christopher Afacan, Ravin Narain, Joao B. P. Soares
Summary: Polymeric nanofibres have shown better performance in solid-liquid separation in oil sands tailings treatment, with faster adsorption and faster flocculation. At higher dosages and kaolin loadings, nanofibres outperformed equivalent polymer solutions in terms of performance.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Jianyang Zhao, Diana Diaz-Dussan, Meng Wu, Yi-Yang Peng, Jinquan Wang, Hongbo Zeng, Wei Duan, Lingxue Kong, Xiaojuan Hao, Ravin Narain
Summary: DCN hydrogels with multi-responsive and self-healing properties show enhanced mechanical strength and excellent cell encapsulation performance by using imine and benzoxaboronic ester as dual linkages, making them promising candidates for a wide range of biomedical applications.
Article
Chemistry, Physical
Wenda Wang, Li Xiang, Diana Diaz-Dussan, Jiawen Zhang, Wenshuai Yang, Lu Gong, Jingsi Chen, Ravin Narain, Hongbo Zeng
CHEMISTRY OF MATERIALS
(2020)
Article
Engineering, Chemical
Li Dan, Qiuli Cheng, Ravin Narain, Beate Krause, Petra Poetschke, Anastasia Elias
Summary: The study demonstrated the successful fabrication of electrically conductive porous structures using multiwalled carbon nanotubes and polyhydroxybutyrate, showing the potential of these materials for biomedical and tissue regeneration applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Qiuli Cheng, Anika Benozir Asha, Yang Liu, Yi-Yang Peng, Diana Diaz-Dussan, Zuosen Shi, Zhanchen Cui, Ravin Narain
Summary: By combining zwitterionic MPC with borneol compound, an excellent antifouling and antibacterial surface with superb hydrophilicity was prepared via Schiff-base bond. The copolymer's coordination between MPC and borneol moieties showed effective prevention of protein adsorption and inhibition of bacterial adhesion, making it a potential application in biomedical materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Qiuli Cheng, Shuxiang Ding, Yan Zheng, Meng Wu, Yi-Yang Peng, Diana Diaz-Dussan, Zuosen Shi, Yang Liu, Hongbo Zeng, Zhanchen Cui, Ravin Narain
Summary: An injectable antibacterial hydrogel with self-healing property was developed in this study, utilizing a dual cross-linking network structure and quadruple hydrogen bonds. The hydrogel exhibited excellent mechanical properties, pH and sugar dual-responsiveness, and showed potential for cell and tissue engineering applications.
Correction
Biochemistry & Molecular Biology
Jianyang Zhao, Diana Diaz-Dussan, Meng Wu, Yi-Yang Peng, Jinquan Wang, Hongbo Zeng, Wei Duan, Lingxue Kong, Xiaojuan Hao, Ravin Narain
Article
Chemistry, Multidisciplinary
Wenda Wang, Zicheng Zeng, Li Xiang, Cong Liu, Diana Diaz-Dussan, Zunguo Du, Anika B. Asha, Wenshuai Yang, Yi-Yang Peng, Mingfei Pan, Ravin Narain, Jifang Liu, Hongbo Zeng
Summary: An injectable self-healing hydrogel based on gastric environment-adaptive supramolecular assembly has been developed for gastric perforation healing. The hydrogel dressing possesses sensitive thermo-responsibility, injectability, antibiofouling property, simplifying surgical procedures, reducing postoperative complications, and enhancing the healing process. This work provides valuable insights for the development of biological environment-adaptive functional materials for biomedical applications.
Correction
Biochemistry & Molecular Biology
Diana Diaz-Dussan, Yi-Yang Peng, Jayeeta Sengupta, Rebecca Zabludowski, Madeleine K. Adam, Jason P. Acker, Robert N. Ben, Piyush Kumar, Ravin Narain
Article
Engineering, Marine
Wagih Abu Rowin, Anika Benozir Asha, Ravin Narain, Sina Ghaemi
Summary: A novel coating that bonds drag-reducing polymers to metallic surfaces has been developed, achieving drag reduction by slowly dissolving in water. Maximum drag reduction was achieved with an optimum deposition of APAM at high Reynolds numbers, although the reduction gradually diminished over time.
Article
Polymer Science
Yi-Yang Peng, Qiuli Cheng, Wenda Wang, Meng Wu, Diana Diaz-Dussan, Piyush Kumar, Ravin Narain
Summary: The plant-derived polyphenol tannic acid was used to crosslink linear statistical polymers containing benzoxaborole to form a bio-inspired, multi-responsive, injectable, and self-healing hydrogel. The mechanical properties of the hydrogel could be easily tuned by adjusting the molar ratio between tannic acid and benzoxaborole groups, and fast degradation and reversible sol-gel formation were observed under specific conditions. The hydrogel, crosslinked by dynamic boronic ester bonds, exhibited self-healing properties and injectability, making it a promising method for biomedical applications.
Review
Chemistry, Multidisciplinary
Anika Benozir Asha, Yangjun Chen, Ravin Narain
Summary: This review highlights the importance of zwitterionic polymers in surface modification and the use of a dopamine adhesive layer for the immobilization of the zwitterion layer. The conjugation of dopamine and zwitterions is categorized into four different approaches, providing promising pathways for the development of non-fouling surfaces.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Polymer Science
Jianyang Zhao, Diana Diaz-Dussan, Zhiqiang Jiang, Yi-Yang Peng, Jacinta White, Wei Duan, Ravin Narain, Xiaojuan Hao, Lingxue Kong
Article
Materials Science, Composites
Xi Liu, Wei Shen, Jincun Fu, Toshiaki Natsuki, Lvtao Zhu
Summary: The 3-D carbon fiber reinforced resin matrix composite tubes were designed and formed using a novel braiding-winding-pultrusion processing technique. The effects of temperature environments on the mechanical responses and damage behaviors of the composite tubes were investigated, and it was found that the structural design of the tubes directly affects their axial bearing capacity.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Weihao Yuan, Ziyang Zhang, Yueshan Li, Yudong Huang, Zhengxiang Zhong, Zhen Hu
Summary: In this study, the simultaneous self-healing of matrix and interface damage of fiber-reinforced composites was achieved by integrating extrinsic self-healing based on microcapsules and internal self-healing based on coordination interaction. The high exothermic action of epoxy resin and mercaptan repair agent in the self-healing process was observed using infrared thermal imaging technology for in-situ and real-time damage detection.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Israr Ud Din, Adnan Ahmed, Farah Tarek, Wesley Cantwell, Kamran A. Khan
Summary: In this study, a finite element model driven by XCT was developed to simulate the folding characteristics of origami structures, and the results showed good agreement with experimental data. The study demonstrates the potential application of XCT-driven FE modeling in simulating foldable structures.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yishan Yang, Yukang Lai, Song Zhao, Hongguang Chen, Renshu Li, Yongjiang Wang
Summary: This study reports the synthesis of a new transparent fiber reinforced polymer material (tGFRP) with high transparency and superior mechanical properties by controlling the refractive index of epoxy resin and using a novel processing technique.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuhang Liu, Kai Huang, Junfeng Ding, Shangyang Yu, Zhixing Li, Li Zhang, Licheng Guo
Summary: This study proposes a method for accurately predicting the penetration failure load of composites using acoustic emission (AE) data. The method includes a cyclic loading test schedule and an extrapolation method based on uncertainty. The results show that this method can accurately predict the failure load when LR equals 1.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Jinxia Cai, Bing Xie, Yunliang Jiang, Jinshan Lu, Zeyu Li, Pu Mao, Mohsin Ali Marwat, Haibo Zhang
Summary: This research aims to develop ternary nanocomposites composed of polycarbonate, Al2O3 nanoparticles, and BaTiO3 nanowires for capacitive energy-storage. By optimizing the capacitor materials, the discharge energy density and efficiency have been improved, and the superiority of the ternary polymer nanocomposites for dielectric energy-storage has been validated through finite element analysis.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Hon Lam Cheung, Mohsen Mirkhalaf
Summary: The aim of this study is to develop physics-based models and establish a structure-property relationship for short fiber composites. High-fidelity full-field simulations are computationally expensive and time-consuming, so the use of artificial neural networks and transfer learning technique is proposed to solve this issue and improve modeling accuracy and efficiency.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yue Jiang, Juyoung Leem, Ashley M. Robinson, Shuai Wu, Andy H. Huynh, Dongwon Ka, Ruike Renee Zhao, Yan Xia, Xiaolin Zheng
Summary: The effect of interface engineering on the combustion and mechanical performance of high-loading B/HTPB composites was investigated in this study. It was found that both covalently bonded and nonpolar/nonpolar interfaces effectively reduced the aggregation of B particles, promoting combustion efficiency and burning rate, and enhancing the mechanical properties of the composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
R. Mohsenzadeh, B. H. Soudmand, A. H. Najafi, M. Fattahi, D. P. Uyen
Summary: This study examines the morphological features of nano-zeolite nanoparticles incorporated into ultra-high molecular weight polyethylene nanocomposites. The dispersion of nanoparticles within the polymer matrix was improved following nano-zeolite incorporation. The size and distribution of nanoparticles were determined through tailored histograms, and the effective elastic moduli of nanocomposites were calculated, considering interfacial effects.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Chunming Ji, Jiqiang Hu, Rene Alderliesten, Jinchuan Yang, Zhengong Zhou, Yuguo Sun, Bing Wang
Summary: This paper investigates the effect of impact damage on the fatigue behavior of CF/PEEK-titanium hybrid laminates. A fatigue life model is proposed to predict the S-N curves of the laminates based on energy dissipation approach. The energy dissipation behavior of the laminates under different experimental conditions is analyzed through post-impact fatigue tests, and the correlation between impact damage and fatigue dissipation energy is determined. The validity of the proposed model is verified through fatigue tests under different stress ratios and impact energy levels.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shaokai Hu, Ping Han, Chao Meng, Ying Yu, Shaolong Han, Haoyu Wang, Gang Wei, Zheng Gu
Summary: This study decorates MXene on the surface of carbon fiber using different bonding interactions to improve the interface adhesion and mechanical properties of carbon fiber-reinforced polymers composites (CFRPs). The results demonstrate that CFRPs reinforced by CF-c-MXene show the optimal properties, with significant improvements in impact strength and interfacial shear strength compared to the unsized carbon fiber-reinforced composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Steven U. Mamolo, Henry A. Sodano
Summary: This study demonstrates that chlorination of ANFs and oxygen plasma treatment of carbon fibers enables the formation of a chlorinated ANF (Cl-ANF) interphase, resulting in a 79.8% increase in interfacial shear strength and a 33.7% increase in short beam strength in CFRP composites. This method provides a rapid and reliable process to improve the mechanical properties of CFRPs without degrading the tensile strength of the carbon fibers.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Yuyang Zhang, Huimin Li, Xin Liu, Yanhong Chen, Chengwei Qin, Daining Fang
Summary: Establishing a prediction model for the mechanical properties of three-dimensional tubular braided composites at different temperatures is of great significance. This study adopted a multi-scale modeling framework based on micro-computed tomography to consider the characteristics of the real yarn cross section and establish a realistic trans-scale finite element model for the composites. The predicted mechanical properties were found to be significantly affected by temperature.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Shengtao Dai, Fei Yan, Jiaming Guo, Huiru Hu, Yu Liu, Liu Liu, Yuhui Ao
Summary: This study successfully synthesized a hyperbranched waterborne polyurethane sizing agent and cellulose nanocrystal modified zinc oxide nanohybrids to improve the interface and properties of carbon fiber reinforced composites. The modified composites exhibited remarkable enhancements in mechanical properties and exceptional UV resistance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
Article
Materials Science, Composites
Libera Vitiello, Martina Salzano de Luna, Veronica Ambrogi, Giovanni Filippone
Summary: The identification of the percolation threshold in short fiber composites is crucial for assessing material properties and biodegradation speed. In this study, an original rheological approach was used to estimate the percolation threshold of hemp and kenaf-based composites, which showed good agreement with conventional dielectric spectroscopy analyses.
COMPOSITES SCIENCE AND TECHNOLOGY
(2024)
