Article
Chemistry, Physical
K. Thinkohkaew, T. Piroonpan, N. Jiraborvornpongsa, P. Potiyaraj
Summary: Radiation-induced grafting of 2,2,2-trifluoroethyl methacrylate onto polypropylene spunbond nonwoven fabric significantly improved its hydrophobicity and durability, offering a potential method for generating reusable hydrophobic fabrics.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Mohammad Divandari, Andrea Arcifa, Mathieu A. Ayer, Christophe Letondor, Nicholas D. Spencer
Summary: Despite advancements in low-surface energy surface fabrication, environmental consequences can be a serious issue, especially in industrial contexts.
A new fluorinated-polymer coating has been developed, applied simply from an aqueous environment, and provides an oleo/hydrophobic surface.
The coating is achieved through copolymerizing three different methacrylate monomers, each with a specific function, and treating the system with UV light to yield the desired surface properties.
Article
Chemistry, Physical
Hui Li, Sainan Miao, Wei Chen, Xixue Yang, Minhua Li, Tieling Xing, Yan Zhao, Guoqiang Chen
Summary: This study demonstrates the fabrication of superhydrophobic and oleophobic cotton fabrics using silane coupling and thiol-ene click reaction. The resulting fabric shows excellent durability and self-healing ability, withstanding various harsh conditions. Such durable fabric can be used for functional clothing and textiles in different fields.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Giulia Mazzon, Marco Contardi, Ana Quilez-Molina, Muhammad Zahid, Elisabetta Zendri, Athanassia Athanassiou, Ilker S. Bayer
Summary: In this study, antioxidant and hydrophobic cotton fabrics were developed using ecofriendly materials and processes, with a double layer coating for functionalization. The coated fabrics had low water vapor uptake, remained breathable, showed no visible color change, and preserved the mechanical properties of the original fabric.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Paper & Wood
Yiming Ma, Yadong Wang, Li Ma, Zongmin Zhu
Summary: In this study, we developed a hybrid coating (TSNP) that provides excellent flame retardancy and hydrophobicity to cotton fabrics. The modified cotton fabrics with TSNP can quickly extinguish flames in vertical combustion experiments and have lower heat release. TSNP also enhances the hydrophobicity of the fabric and forms a dense carbon layer, creating a barrier effect against heat and combustible gases.
Article
Polymer Science
Byoung-Min Lee, Ha Eun Shim, Yeong Heum Yeon, You Ree Nam, Moonsik Chae, Jae-Ho Kim, Dae-Hee Lim, Hui-Jeong Gwon
Summary: This study investigated the effects of gamma-ray irradiation on partially fluorinated polystyrene. Poly(4-fluoropolystyrene) and polypentafluorostyrene were prepared using solution polymerization to improve the radiation resistance of polystyrene. The results showed that polypentafluorostyrene exhibited less oxidation and excellent thermal properties after a absorbed dose of 500 kGy, indicating its potential as a promising candidate for radiation resistance applications.
Article
Materials Science, Paper & Wood
Wenhui Rao, Junjiao Shi, Meini Yang, Feihao Yang, Tao Wu, Chuanbai Yu, Ming-Jun Chen, Hai-Bo Zhao
Summary: This study presents a facile method for fabricating an environmentally friendly hydrophobic and fire-safe coating on cotton fabric. The coating, based on biobased phytic acid, tannic acid, and vinyl trimethoxysilane, forms a phosphorus/nitrogen/silicon-containing hybrid flame-retardant system. The coating enables self-extinguishing behavior, high limiting oxygen index, reduced heat and smoke release, and hydrophobicity with a water contact angle of 117.2 degrees.
Article
Materials Science, Characterization & Testing
Jianhua Ma, Qiangli Zhao, Yingxue Zhou, Pengxin He, Haihong Pu, Baiqing Song, Shaoxue Pan, Yaowu Wang, Chen Wang
Summary: In this study, polydopamine and a hydrophobic material were used to enhance the stability of the combination between carbon nanotubes and cotton fibers, resulting in a highly conductive and water-resistant fabric. The fabric showed a stable conductive path with a surface resistance lower than 110 Omega/sq, effective electromagnetic shielding performance, and outstanding electric heating performance, making it suitable for wearable electronics and various smart flexible devices.
Article
Materials Science, Paper & Wood
Maoshuang Chen, Pirah Ayaz, Yuanxiang Xiao, Yong Li, Pei Wang, Wenjia Huang, Shujun Zhao, Feiya Fu, Xiangdong Liu, Shuangfei Xiang
Summary: In this study, versatile cotton fabrics were prepared with excellent flame retardancy, hydrophobicity, UV-blocking and antibacterial properties using bio-based phytic acid, octadecylamine and TiO2. The modification process did not compromise the desired properties of cotton fabrics, and has broad application prospects.
Article
Engineering, Environmental
Dongdong Liu, Xiuming Liu, Kuanjun Fang, Jixian Gong, Shuai Zhang, Xiran Qiao, Jinkun Wang, Tianning Wang, Enzheng Xing
Summary: In this study, zeolitic imidazolate framework-8 (ZIF-8) nanocrystals were grown in situ on carboxymethyl cotton fabric to absorb acid dyes without auxiliaries. The cotton fabric was further protected with a polymethylhydrosiloxane (PMHS) hydrophobic coating to enhance its durability and color fastness. The resulting fabric showed high stability, with a high hydrophobic angle and excellent adsorption of oil agent, indicating potential applications in treating oiled wastewater.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Anuja P. Rananavare, Jaewoong Lee
Summary: In this study, hydrophobic cotton fabrics were efficiently fabricated using poly(glycidyl methacrylate) nanoparticles (PGMA NPs) via a radical-induced dispersion polymerization technique. The long alkyl chain of octadecyl mercaptan provided low surface free energy, while PGMA NPs acted as anchors, forming covalent bonds with the cotton fabric surface and resulting in increased roughness. The modified fabric exhibited enhanced hydrophobicity due to nano- and micro-scale roughness.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Physical
Bin Lyu, Xinru Li, Hui Liu, Dangge Gao, Jianzhong Ma, Mengyu Zhang
Summary: Amphiphilic Janus particles were used to prepare a stable composite emulsion with fluorine-containing polyacrylate, leading to greatly improved hydrophobicity of fabric. The synergistic effect of amphiphilic Janus SiO2 nanoparticles and hexafluorobutyl methacrylate significantly enhanced water resistance of the latex film, with a conversion rate of 98.7% and an average particle size of 500 nm achieved.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Textiles
M. Zakerizadeh, M. Akbari Dogolsar, Z. Jamshidi, A. K. Haghi
Summary: This study investigates the wash durability tests for efficient hydrophobic surfaces through non-fluorinated sol-gel processes on cotton fabric. Results show that fabric coated with 1 mL of MTEOS and ammonia catalyst exhibits the highest breathability and strength, but the sol-gel technique does not provide suitable wash durability.
INDIAN JOURNAL OF FIBRE & TEXTILE RESEARCH
(2021)
Article
Materials Science, Textiles
Rabia Sharif, Muhammad Mohsin, Naveed Ramzan, Shaheen Sardar, Syed Waqas Ahmad, Wahla Ahtisham
Summary: In this study, bio-based and non-fluorinated oil and water repellent recipes for cotton fabric were synthesized by polymerizing palmitic acid with the eco-friendly cross-linker citric acid. An optimized water repellent finish was developed after considering various factors. Characterization techniques confirmed the successful synthesis and application of the newly developed recipes onto the cotton fabric.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Biochemistry & Molecular Biology
Ajay Vishwakarma, Manjinder Singh, Bartosz Weclawski, Vennapusa Jagadeeswara Reddy, Baljinder K. Kandola, Gaurav Manik, Aravind Dasari, Sujay Chattopadhyay
Summary: Multifunctional cotton fabric was prepared through a two-step layer-by-layer spray coating method, which improved the fire retardancy and hydrophobicity. The coated fabric showed significantly improved fire retardancy with increased LOI and decreased char length and heat release rate values. The hydrophobicity of the coated fabric was also enhanced.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
A. Khallouqi, A. Halimi, O. El Rhazouani
Summary: A pediatric head phantom made of epoxy resin was used to evaluate radiation exposure in CT scans. The phantom demonstrated dosimetric properties comparable to commercially available phantoms, making it a practical and economical option for assessing radiation dose in children.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. Y. Shoeib, Doaa A. Ahmed, A. F. Abd-Elraheem
Summary: The research aims to measure and analyze the levels of radon concentration, radium concentration, and radon exhalation rates in geopolymer cement mixes, and assess their impact on indoor air quality. Results indicate that geopolymer cement materials are safe for use in construction, except for specific mixes.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. J. Leotlela
Summary: This article presents the results of radiochemical events/processes that occur when water is exposed to ionising radiation of charged particles (beta and alpha-particles). The idea of cogeneration becomes even more lucrative if we consider that hydrogen energy generation is clean (also known as green energy) because of its insignificant contribution to environmental pollution. These results supplement the fluctuation in effective dose theory/hypothesis of a previous study on time-dependent variations in the radiological health impact of an interim SNFS facility presented in 2021 (Leotlela, 2021).
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Vyacheslav Ivanovich Pavlenko, Roman Vladimirovich Sidelnikov, Vitaly Valerievich Kashibadze, Mikhail Igorevich Dobynde, Dmitry Alexandrovich Kartashov, Vyacheslav Alexandrovich Shurshakov
Summary: This work explores the possibility of using a polymer composite to protect against neutron radiation in space conditions. The study shows that the proposed polymer composite has high structural properties necessary for use in space. Monte Carlo simulation is used to evaluate the neutron radiation passage through the material. The results demonstrate that the protective layer made of the polymer composite is thinner and more suitable for spacecraft, which is crucial due to limited space on board.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Islam G. Alhindawy, M. I. Sayyed, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, Mohammad S. Alomar, Gaber A. Elawadi, K. A. Mahmoud
Summary: This study investigated the effects of Neodymium (III) nitrate hexahydrate and lanthanum nitrate hexahydrate on the structural and radiation shielding properties of zircon mineral, and a new La/Nb-doped ZrO2 nanocomposite was fabricated. Experimental techniques such as energy-dispersive X-ray, scanning electron microscope, transmission electron microscopy, and X-ray diffraction pattern were used to analyze the structure and composition of the fabricated nanocomposites. Monte Carlo simulation was employed to evaluate the gamma-ray shielding properties. The results showed that the fabricated composites had good shielding characteristics, with a shielding capacity of 30-50% compared to pure lead in the intermediate energy range of 0.244-2.506 MeV.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Hassan Salah, Mohammed Alkhorayef, Layal Jambi, Mohammed Almuwanis, Abdelmoneim Sulieman
Summary: Cardiovascular nuclear medicine imaging examinations expose patients to high doses of ionizing radiation. This study assessed the radiation doses and public exposure in cardiac rest and stress SPECT scans. The effective dose from cardiac stress was higher than previous studies, which may be influenced by clinical indication imaging protocols and radiation safety measures.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Leandro Barbosa da Silveira Gatto, Delson Braz, Leonardo Pacifico, Paulo Travassos, Luis Alexandre Goncalves Magalhaes
Summary: This study evaluated the mean glandular dose (MGD) in mammography using a computed radiography (CR) system with a solid-state detector. Irradiations and simulations were conducted to determine the MGD and spectra for the same conditions. The results showed that the glandular dose was below the acceptable levels and the spectra were mostly in accordance with the literature.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Mawya Khafaji, Rashid Barnawi, Salma Amoudi, Hassan Gabbani, Rayan Alhazmi, Rayan Ahyad, Khalid Alsafi, Khuld Saeedi, Hassan Salah, Nissren Tamam, David Bradley, Sarah Albahiti, Abdelmoneim Sulieman
Summary: This study aimed to calculate typical values for common pediatric studies at King Abdulaziz University Hospital and compare them with other studies. The results showed that radiation dose levels in pediatric CT examinations were generally lower compared to other studies.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Faisal Almisned, Iskender Akkurt, Nurdan Karpuz
Summary: In this study, cross sections of medical radioisotopes were calculated using level density models. The results were compared with experimental data and it was found that the GSM level density models generally yielded consistent conclusions.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Shokufeh Saeid, Neda Mollakhalili-meybodi, Fateme Akrami Mohajeri, Farzan Madadizadeh, Elham Khalili Sadrabad
Summary: This study found that gamma irradiation significantly reduces the saponin and phytic acid content of quinoa. At a dose of 2.5 kGy, it can effectively reduce saponin and phytic acid without significantly damaging the antioxidant compounds.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Maria Demeter, Ion Calina, Anca Scarisoreanu, Valentina Mitran, Marcela Popa, Anisoara Cimpean, Mariana Carmen Chifiriuc, Marin Micutz, Elena Matei, Bogdana Mitu
Summary: Novel biocompatible composite hydrogels with good elastic and antimicrobial properties were synthesized by e-beam cross-linking using chitosan, water-soluble polymers, and silver nanoparticles (AgNP). The composite hydrogels showed high stability, absorption capability specific to infected wounds, and biocompatibility. The antimicrobial activity was influenced by the amount of AgNP and cross-linking degree, with significant inhibition against Gram-negative bacteria.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Anuor AT. Ayoub, Yushou Song, Mamoun IA. Sagiroun
Summary: This paper presents an assessment of the radiological hazard for humans from nuclear power plant effluent released into a river under normal operation scenarios. The study concludes that the radiological hazard from this effluent is minimal and within acceptable limits according to international standards. It also highlights the potential hazards related to the higher concentration of 137Cs in sediments over time.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Irabati Chakraborty, Nidhi Sinha, Bobby Antony
Summary: This article investigates the electron impact ionization of prebiotic molecules within the interstellar medium. By calculating the electron impact ionization cross section, the study provides insights into the chemistry of these molecules and their interaction with electrons, which play a vital role in the emergence of life's essential building blocks.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
C. V. Vishnu, Antony Joseph
Summary: This study investigated the gamma-ray shielding properties of composite materials made from natural rubber with different proportions of Barium Tungstate. The addition of Barium Tungstate significantly improved the characteristics of gamma radiation shielding. The experimental measurements showed good agreement with theoretical calculations obtained from simulation results.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Derya Mutlu, Idris Karagoz, Harun Sepetcioglu, Urkiye Akar Tarim, Orhan Gurler
Summary: This study examined the properties of epoxy composites with dendritic copper particles and found that the addition of copper particles improved the electrical conductivity and mechanical properties of the composites. The glass transition temperature of the composites could be adjusted by varying the copper particle ratio. The study also evaluated the shielding properties of epoxy-based composites against gamma radiation and found that the addition of copper particles significantly altered the microstructure and mechanical properties of the composites.
RADIATION PHYSICS AND CHEMISTRY
(2024)