Article
Chemistry, Applied
Shupin Chen, Hongqiang Li, Xuejun Lai, Shifeng Zhang, Xingrong Zeng
Summary: The authors presented a new strategy for preparing superhydrophobic and flame-retardant cotton fabric by coating multiple layers on the fabric surface. The resulting fabric exhibited high water contact angle, anti-adhesion properties, self-cleaning capabilities, and efficient oil-water separation, as well as excellent flame retardancy.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Physical
Guangfei Wang, Anling Li, Kangshuai Li, Yaohui Zhao, Yongwei Ma, Qiang He
Summary: A simple physical deposition method is used to deposit Al2O3 particles on the surface of RTV silicone rubber to achieve a superhydrophobic surface, with a contact angle of 156.6 degrees and a rolling angle of 5.1 degrees. The surface roughness is increased via Al2O3 particles, leading to remarkable self-cleaning and droplet bounce properties on the prepared surface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Composites
Ruijie Han, Zhijing Han, Xudong Song, Wei Cui, Jin Peng, Guangshuai Dong, Kangmin Niu
Summary: This study presents a simple method to prepare silicone rubber composites with excellent superhydrophobic properties using low-cost hydrophilic silica. The results show that uniform micro-nano structures are the key to the superhydrophobic properties of silicone rubber composites.
POLYMER COMPOSITES
(2023)
Article
Engineering, Electrical & Electronic
Zhen Wei, Qiang He, Fangyuan Zhang, Fei Dai
Summary: In this study, conductive and superhydrophobic silicone rubber composites with a uniform concave-convex structure were prepared by filling carbon nanotubes in the silicone rubber matrix and using a 2000 mesh screen template replication method and spraying technology. The silicone rubber composite showed good electrical conductivity at 200% elongation and after 500 times of torsion. Additionally, it exhibited good droplet bounce, anti-icing, and self-cleaning properties.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Thermodynamics
Xinying Su, Weihong Chai, Yurou Xia, Meihuan Gao, Yingge Li, Zhenlin Tang, Ziyang Zhang, Zhishuang Han, Zaihang Zheng
Summary: In this study, cyclodextrin (CD) as a bio-based polyhydroxy compound was used to construct an intumescent flame-retardant system with ammonium polyphosphate (APP) for flammable and fire-hazardous silicone rubber (SR). The poor compatibility and water resistance of SR composites were improved by introducing a bio-inspired hydrophobic structure for CD and APP. The results showed that the flame retardancy of SR composites reached a limiting oxygen index (LOI) of 30.7% and UL-94 V-0 rating with 40 phr total fillers loadings. Water soaking tests confirmed the maintained flame retardancy of SR composites under hot aqueous medium. The improved flame retardancy can be attributed to the good thermal stability and char-forming ability of the modified APP and CD, as well as the gas phase dilution and condensed phase barrier mechanisms.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Polymer Science
Shiwei Li, Luyan Yu, Jianhua Xiong, Ying Xiong, Shuguang Bi, Heng Quan
Summary: In this study, a superhydrophobic and flame-retardant coating made of chitosan, ammonium polyphosphate, and TiO2-SiO2-HMDS composite was successfully applied to cotton fabric using layer-by-layer assembly and dip-coating procedures. The coating enhanced the flame retardancy, water-repellency, and UV protection properties of the cotton fabric.
Article
Materials Science, Paper & Wood
Jianjun Gu, Xiaofei Yan, Dongming Qi, Ruyi Xie, Xiaoming Yang, Yaobang Li, Jiawei Li
Summary: In this study, a durable multifunctional coating was successfully fabricated on cotton fabric, providing it with flame retardant, antibacterial, superhydrophobic and self-cleaning properties. The coated fabric exhibited excellent durability even after multiple washing cycles.
Article
Polymer Science
Mohd Salahuddin Mohd Basri, Tee Hui Yek, Rosnita A. Talib, Intan Syafinaz Mohamed Amin Tawakkal, Siti Hasnah Kamarudin, Norkhairunnisa Mazlan, Nurul Ain Maidin, Mohd Hidayat Ab Rahman
Summary: Geopolymer coating using rice husk ash has excellent fire retardant properties, but also increased water absorption properties. Adding silicone rubber improved the moisture absorption and fire retardant properties. Statistical analysis was essential to understand the effects of factors on the properties of the composite.
Article
Materials Science, Multidisciplinary
Xuedan Zhu, Zhanxia Luo, Yali Yao, Jiehui Li, Jinmei He, Mengnan Qu
Summary: In recent years, fabrics have been widely used in the fields of oil-water separation and deicing. A flame retardant, conductive superhydrophobic cotton fabric with excellent electrothermal property has been developed. The coated fabric shows significantly reduced heat release rates and excellent heating uniformity. It also has the ability to successfully separate crude oil and water and exhibits excellent deicing performance.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Munirah D. Albaqami, Shoyebmohamad F. Shaikh, Ayman Nafady
Summary: A study introduced a method for producing superhydrophobic and flame-retardant polyurethane foam through coating technology, effectively enhancing the fire resistance of the foam material, while maintaining the comfort performance and surface characteristics of the samples.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Anling Li, Guangfei Wang, Yongwei Ma, Chaoyue Zhao, Fangyuan Zhang, Qiang He, Fengwei Zhang
Summary: Silica powder and physical deposition technique were used to fabricate superhydrophobic silicone rubber surfaces, increasing surface roughness and demonstrating significant self-cleaning effect, remarkable bouncing performance, and high temperature resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Applied
Chengzhuang Su, Lei Zhou, Guannan Ju, Fantao Meng, Hongqian Zhang, Qinglin Mu, Zhekun Liu, Lina Zhang
Summary: A stable flame-retardant superhydrophobic cotton fabric was constructed using a simple impregnation method. The fabric exhibited flame retardancy, superhydrophobicity, mechanical stability, and durability.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Coatings & Films
Guangfei Wang, Wei Zhou, Jin Zhou, Meimei Wang, Yanbin Zhang, He Qiang
Summary: The superhydrophobic surface of silicone rubber was prepared through a simple process, giving it excellent superhydrophobic, low adhesion, and self-cleaning properties. The surface showed high contact angle and low rolling angle with water, and even when immersed in water, it remained unwetted. Additionally, it exhibited excellent properties with various hydrophobic solutions.
SURFACE ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Qiang He, Yongwei Ma, Xiaosen Wang, Yangyang Jia, Kangshuai Li, Anling Li
Summary: In this work, a mechanically stable superhydrophobic surface with a multilayered rough structure was fabricated using silicone rubber. The surface showed excellent performance even after multiple bendings, twistings, and abrasion. It extended the time for droplets to freeze by a factor of 3.4 at -10 degrees C. This research has bright application prospects in extreme environments.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Paper & Wood
Shan Gao, Hongqiang Li, Hang Guan, Longzhu Zheng, Xuejun Lai, Wanjuan Chen, Xingrong Zeng
Summary: A new method to fabricate multifunctional cotton fabrics with superhydrophobicity, flame-retardancy and electrical conductivity was reported in this study, using layer-by-layer assembly and spray-coating techniques. The obtained cotton fabric exhibited high water contact angle, excellent surface stability, good thermal stability, outstanding flame-retardant performance, and stable resistance signal for pressure sensing applications. These findings offer a new methodology for practical applications in wearable devices and flexible electronics.
Article
Chemistry, Analytical
Ahmed G. Hassabo, Amina L. Mohamed, Tawfik A. Khattab
Summary: This study developed novel fluorescent nanofibers via electrospinning of chromophore-doped cellulose, using cellulose as the host material and perylene dye derivatives as active dopants. The fabricated fluorescent cellulose nanofibers pave the way for the development of promising textile fluorescence materials for applications such as flexible displays, photonics, and optical devices.
Article
Chemistry, Analytical
Mohamed H. El-Newehy, Hak Yong Kim, Tawfik A. Khattab, Meera A. Moydeen, Mehrez E. El-Naggar
Summary: The study developed mechanically reliable and highly photoluminescent LSAN-PAN hybrid nanofibrous film with UV-induced photochromic properties. Immobilizing LSAN onto nanoparticles improved transparency and increased hydrophobicity with enhanced mechanical performance, without compromising appearance.
Article
Materials Science, Ceramics
Mohamed H. El-Newehy, Hak Yong Kim, Tawfik A. Khattab, Mehrez E. El-Naggar
Summary: The study successfully developed lanthanide-doped aluminate nanoparticles/polystyrene electrospun nanofibers as novel secure authentication films, which demonstrated photochromism and fluorescence. The nanofibers had high transparency, stretchability, and hydrophobic properties, showing potential for anti-counterfeiting applications.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Amal H. Abdel Kader, Sawsan Dacrory, Tawfik A. Khattab, Samir Kamel, Hussein Abou-Yousef
Summary: This study aimed to prepare hydrophobic, lightweight, and flame retardant foam composites using modified cellulose and dolomite. The addition of environmentally friendly silicone rubber (RTV) on the foam surface improved water repellency. The optimization of flame retardancy was achieved at low and medium dolomite loading, and the addition of RTV maintained the fire retardancy of the composites at medium loading.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Mohamed H. El-Newehy, Hak Yong Kim, Tawfik A. Khattab, Meera Moydeen Abdulhameed, Mehrez E. El-Naggar
Summary: Electrospun PHBV mats with varying amounts of PEG showed different effects on cell adhesion and growth rates, indicating high potential for soft tissue engineering, particularly in wound healing applications.
Article
Materials Science, Multidisciplinary
Sarah Alharthi, Mehrez E. El-Naggar, M. A. Abu-Saied, Tawfik A. Khattab, Dalia Saleh
Summary: A microporous cellulose acetate biopolymer test dipstick was constructed for colorimetric detection of urea, with proton transfer from hydrolysis of urea/urease reaction. Integration of TAM probe led to ratiometric changes in absorption spectra as a function of urea total content in the aqueous medium.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Lingjie Xie, Li Yin, Yina Liu, Hailiang Liu, Bohan Lu, Chun Zhao, Tawfik A. Khattab, Zhen Wen, Xuhui Sun
Summary: The raindrop solar cell can collect both mechanical energy from raindrops and solar energy, achieving high energy conversion efficiency. This study proposes a triboelectric nano-generator with high rain droplet energy conversion efficiency, integrated with a perovskite solar cell through shared electrodes. By adjusting the water droplet parameters, the raindrop output power and mechanical energy conversion efficiency reach 0.68 mW and 12.49%, respectively.
Article
Biochemistry & Molecular Biology
Tawfik A. Khattab, Mehrez E. El-Naggar, Mehboobali Pannipara, S. Wageh, Manal F. Abou Taleb, M. A. Abu-Saied, Ibrahim El-Tantawy El Sayed
Summary: In this study, an environmentally-friendly metallochromic solid state sensor was developed using cyanidin-based anthocyanin as a spectroscopic probe and chitosan nanoparticles integrated onto cellulose paper strip as a host matrix for real-time determination of ferric ions. The sensor showed high selectivity, fast response, low cost, and environmental safety.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
Tawfik A. Khattab, Samir Kamel
Summary: Electrically conductive hydrogels with self-healing ability have unique properties and promising applications in biomedical and electronic fields. This article discusses the preparation, mechanisms, characterization, and attractive applications of polysaccharide-based hydrogels with self-healing and electrical conductivity.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Xiaoping Chen, Yina Liu, Yi Sun, Tianshi Zhao, Chun Zhao, Tawfik A. Khattab, Eng Gee Lim, Xuhui Sun, Zhen Wen
Summary: In this study, a MXene/TiO2 hybrid film was prepared as an intermediate layer in a TENG to regulate and store charges, thereby improving the output performance of the TENG.
Article
Polymer Science
Mahmoud Essam Abd El-Aziz, Samir M. M. Morsi, Kholod H. Kamal, Tawfik A. Khattab
Summary: In this study, a carbon nanoparticle-modified crosslinked chitosan nanocomposite was successfully synthesized and its adsorption capacity for lead ions and methylene blue in wastewater was investigated. The results demonstrated that the nanocomposite exhibited superior adsorption performance compared to individual crosslinked chitosan and carbon nanoparticles.
Article
Chemistry, Analytical
Islam El-Nagar, Ahmed M. Youssef, A. A. Abd El-Hakim, El-Refaie Kenawy, Hamada S. A. Mandour, Tawfik A. Khattab
Summary: A novel dicyanomethylene dihydrofuran hydrazone (DCDHFH) based colorimetric chemosensor was developed for the detection of Cd(II) in aquatic media, showing strong sensitivity and selectivity towards cadmium ions. The evaluation of cadmium detection abilities of DCDHFH-immobilized paper strips was conducted based on CIE Lab's criteria, colorimetric strength (K/S), and UV-Vis absorbance spectra. The optimal pH range for Cd(II) determination was determined to be between 5.5-6.3, with a rapid chromogenic change from yellow to red depending on Cd(II) concentration.
Article
Polymer Science
Mahmoud T. Abdu, Tawfik A. Khattab, Maiada S. Abdelrahman
Summary: A polyester resin was reinforced with electrospun glass nanofibers to create long-lasting photochromic and photoluminescent products, such as smart windows and concrete, as well as anti-counterfeiting patterns.
Article
Materials Science, Multidisciplinary
Meram S. Abdelrahman, Shimaa S. M. Elhadad, Mehrez E. El-Naggar, Hatem E. Gaffer, Tawfik A. Khattab
Summary: The presented research work focuses on the development of new smart textiles with photoluminescence properties. Rare-earth-doped aluminate nanoparticles were immobilized into silicone rubber and spray-coated onto cotton fibers to create a photoluminescent coating. The findings show improved superhydrophobic activity and color change of the fabric by adjusting the nanoparticle content.
