Article
Materials Science, Ceramics
Bartosz Babiarczuk, Daniel Lewandowski, Krzysztof Kierzek, Jerzy Detyna, Walis Jones, Jerzy Kaleta, Justyna Krzak
Summary: The development of silica aerogels with controlled mechanical properties is essential for practical applications. Synthesis of native silica aerogels was achieved using the sol-gel method and the alkoxide precursor of silica (TMOS). This study investigated the influence of three synthesis parameters, namely TMOS concentration, catalyst concentration, and solvents (MeOH, EtOH, IPA), on the gel point, shrinkage, and mechanical properties of the aerogels. Structural studies revealed how these synthesis parameters affected the spatial network and elasticity of the aerogels. The analysis demonstrated that the catalyst concentration was the most significant parameter, as it led to a significant increase in Young's modulus (E) without affecting the bulk density (rho), possibly due to an increase in specific surface area and bond diameter between secondary particles in the aerogel.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Polymer Science
Kun-Hao Luo, Min-Si Yan, Chen-An Chang, Chih-Wei Weng, Jui-Ming Yeh
Summary: Research on flexible silica aerogels (FSAs) has been conducted to explore their thermal insulation, low density, and high elasticity. The physical properties of FSAs, such as density, thermal conductivity, mechanical strength, and surface wettability, depend on the preparation conditions. This study focuses on fine-tuning the physical properties of FSAs using two modifiers, MTMS and TMES.
Article
Materials Science, Ceramics
YongJin Kim, SangHyuk Yoo, Hyung Gyu Lee, Yoonjin Won, Jimin Choi, Keonwook Kang
Summary: The porosity of silica aerogel is the main parameter that determines the dielectric constant, and it should be at least 0.76 to achieve a very low dielectric constant of 1.5. Additionally, while maintaining the porosity of 0.76, the silica aerogel needs to be designed in an ordered open pores structure (OOPS) containing 64 or more pores positioned in a simple cubic lattice point to endure the required elastic modulus of 8 GPa to prevent delamination.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Chao Li, Yumei He, Shanli Wang, Hao Zhang, Licong Xu, Minghua Wu
Summary: Nowadays, the rapid preparation of silica aerogel powders by ambient pressure drying (APD) method has been widely studied. However, the internal pore structures of the aerogel powders prepared by the conventional rapid aging method (CM) are difficult to be controlled. In this research, a rapid way was introduced to control the microstructure of the silica aerogel powders through pore repairing method in the aging process. Under optimal ageing conditions, silica aerogel powders with low density, low thermal conductivity and high specific surface was obtained through the pore repairing method.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Omer Guler, Veyis Selen, Oykum Basgoz, Hasan Safa, Ibrahim S. Yahia
Summary: Silica aerogel-hollow silica microsphere sandwich structure was successfully synthesized as an adsorbent for dye removal from aqueous solutions, showing high adsorption efficiency and potential for further development with increased adsorption capacity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
Zahra Niazi, Mohsen Ashjari, Yusef Janqamsari
Summary: By physically reinforcing the gel network with recycled PET fibers, the efficiency of ambient pressure drying is improved, resulting in silica aerogels with high surface area and porosity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Thermodynamics
Akos Lakatos, Attila Csik, Istvan Csarnovics
Summary: This paper presents research results on the performance of aerogel materials in terms of thermal conductivity, specific heat, and combustion heat, providing important references for designers and researchers. The study found that temperature and external load significantly affect thermal conductivity, while thickness variations have minor impacts. Additionally, the combustion heat of aerogel was measured and investigated before and after combustion using advanced microscopy techniques.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Feng Xu, Young-lae Kim, Se-Young Oh, Byoung-Uk Cho
Summary: Cellulose aerogel beads (CABs) with porous core-shell structures were synthesized using a dilute ethanol solution-assisted freeze-drying. The addition of 10% ethanol before freeze-drying resulted in CABs with non-obvious structural shrinkage, large particle size, uniform pores, and high porosity.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Maryam Fashandi, Solmaz Karamikamkar, Siu. N. Leung, Hani E. Naguib, Jiang Hong, Bingqing Liang, Chul B. Park
Summary: ATMS is commonly used as a silane coupling agent and can be incorporated into aerogels with the help of PVTMS for improved properties. The use of acid and base catalysts further enhances the performance of the aerogels. Characterization methods confirm the excellent physical and chemical properties of ATMS:PVTMS aerogels.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Chuanqing Zhao, Fangke Qiao, Jiawei Ji, Shifeng Deng, Huimin Qi
Summary: This study focuses on the synthesis of silicon-containing polyarylacetylene (PSA) resin, which enhances the heat resistance and mechanical properties of polymer reinforcement phase. The honeycomb-like porous SiO2/PSA aerogels, prepared through click reaction, gel aging, freeze-drying, and curing, possess low density, high porosity, low thermal conductivity, and excellent thermal insulation performance. Compared to other polymer aerogels and materials, SiO2/PSA composite aerogel exhibits high temperature resistance, compressive strength, and has potential applications in the aerospace industry.
Article
Materials Science, Multidisciplinary
Deng Duan, Xiangdong Gao, Yubing Dong, Xiaoming Qi, Xingxing Zhang, M. D. Zahidul Islam, Yongqing Wu, Xiang Zhao, Xiaomin Li
Summary: Silica aerogel/poly(vinyl alcohol) (PSG) composites were developed with excellent performance. The composites have a uniform distribution of nanopores, exhibit excellent mechanical strength under multiple compressive cycles, and demonstrate thermal insulation, flame retardant, and hydrophobic properties. This study provides a purely green method for industrial applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Green & Sustainable Science & Technology
Sk S. Hossain, Chang-Jun Bae, P. K. Roy
Summary: Recently, there has been widespread attention on nano-silica (NS) particles due to their versatile applications. Researchers have made significant progress in synthesizing NS using waste ingredients. This review highlights the recent advancements in the synthesis of NS and silica aerogel using agricultural, industrial, municipality, and mining wastes, focusing on the technologies, properties, and applications.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Polymer Science
Mengtian Sun, Yang Wang, Xiaowu Wang, Qiong Liu, Ming Li, Yury M. Shulga, Zhi Li
Summary: LDH/SA composites were prepared by an in-situ sol-gel process, and the introduction of MgAl-LDH significantly enhanced the thermal stability and safety of LDH/SA without impairing their mesoporous properties.
Article
Materials Science, Multidisciplinary
Xue Yang Goh, Kaiting Guo, Luon Tan Nguyen, Ren Hong Ong, Hai M. Duong
Summary: In this study, novel polyethylene terephthalate (PET) aerogel composites from recycled PET fibres were successfully developed for the first time. The PACs exhibit ultra-low densities and low thermal conductivities. The mechanical properties of PACs can be adjusted by varying the honeycomb cell sizes and PET-PVA ratios. PACs have significantly higher compressive strength in the out-of-plane direction compared to the in-plane directions, making them a good alternative for building insulation and cold chain applications.
MATERIALS TODAY COMMUNICATIONS
(2023)
Review
Environmental Sciences
Faheem Akhter, Abdul Rauf Jamali, Mahmood Nabi Abbasi, Mukhtiar Ali Mallah, Ahsan Atta Rao, Shafeeque Ahmed Wahocho, Hafiz Anees-ur-Rehman, Zubair Ahmed Chandio
Summary: The hydrophobicity of silica and composite aerogels has made them widely applicable in various fields. These materials have attracted global researchers' attention due to their remarkable structural, morphological, and physiochemical properties, such as high porosity, surface area, chemical stability, and selectivity. They can adsorb substances, such as organic pollutants, without collapsing the pore and network structure. Exploiting these materials for environmental and biomedical applications is a trending topic due to their exceptional properties and great adsorption potential. This study explores the synthetic approaches, resulting properties, and recent advances in the application of hydrophobic silica and composite aerogels, with a focus on environmental remediation and biomedical applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zahra Talebi Mazraeh-Shahi, Ahmad Mousavi Shoushtari, Ahmad Reza Bahramian, Majid Abdouss
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2015)
Article
Materials Science, Composites
Hamideh Najafi, Ali Zadhoush, Zahra Talebi, Sayed Pedram Rezazadeh Tehrani
POLYMER COMPOSITES
(2018)
Article
Materials Science, Textiles
Zahra Talebi Mazraeh-shahi, Ahmad Mousavi Shoushtari, Ahmad Reza Bahramian, Majid Abdouss
FIBERS AND POLYMERS
(2014)
Article
Materials Science, Ceramics
Zahra Talebi Mazraeh-shahi, Ahmad Mousavi Shoushtari, Majid Abdouss, Ahmad Reza Bahramian
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2013)
Article
Engineering, Mechanical
Saeed Salimian, Wim J. Malfait, Ali Zadhoush, Zahra Talebi, Mohammadreza Naeimirad
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2018)
Article
Materials Science, Ceramics
Mehran Afrashi, Dariush Semnani, Zahra Talebi, Parvin Dehghan, Mehrnoosh Maherolnaghsh
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2019)
Article
Materials Science, Multidisciplinary
Mehran Afrashi, Dariush Semnani, Zahra Talebi, Parvin Dehghan, Mehrnoush Maheronnaghsh
MATERIALS RESEARCH EXPRESS
(2019)
Article
Construction & Building Technology
Zahra Talebi, Parham Soltani, Negar Habibi, Fatemeh Latifi
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Materials Science, Textiles
Razieh Abedkarimi, Hossein Hasani, Parham Soltani, Zahra Talebi
JOURNAL OF THE TEXTILE INSTITUTE
(2020)
Article
Engineering, Biomedical
Parisa Amiri, Zahra Talebi, Dariush Semnani, Rouhollah Bagheri, Hossein Fashandi
Summary: Surface-modified nanofibers in dental composites can significantly enhance mechanical properties and color by forming semi-interpenetration network between nanofibers and resin matrix and achieving uniform distribution of nanofibers in the resin. However, increasing nanofiber content may lead to a decrease in mechanical properties of the composite materials.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
(2021)
Article
Engineering, Biomedical
Alireza Aminoroaya, Rouhollah Bagheri, Saied Nouri Khorasani, Zahra Talebi, Parham Derakhshanfar, Rasoul Esmaeely Neisiany
Summary: A mesoporous silica aerogel was synthesized through the sol-gel process and modified with silane-based modifiers to investigate its impact on the fracture mechanics of dental composites. The results showed that increasing filler content enhanced flexural modulus and strength, while the modification of aerogels improved fracture characteristics and wettability of the composites. The mesoporous structure of the fillers predominantly influenced the filler-matrix adhesion strength at the same filler content.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Saeed Salimian, Ali Zadhoush, Zahra Talebi, Beatrice Fischer, Peter Winiger, Frank Winnefeld, Shanyu Zhao, Michel Barbezat, Matthias M. Koebel, Wim J. Malfait
ACS APPLIED NANO MATERIALS
(2018)
Proceedings Paper
Nanoscience & Nanotechnology
Z. Talebi Mazraeh-shahi, A. Mousavi Shoushtari, A. R. Bahramian
5TH INTERNATIONAL BIENNIAL CONFERENCE ON ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS, UFGNSM15
(2015)
Proceedings Paper
Nanoscience & Nanotechnology
Z. Talebi Mazraeh-shahi, A. Mousavi Shoushtari, A. R. Bahramian
5TH INTERNATIONAL BIENNIAL CONFERENCE ON ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS, UFGNSM15
(2015)