Article
Thermodynamics
Katarzyna Cieslak, Katarzyna Ganczyk-Specjalska, Katarzyna Drozdzewska-Szymanska, Marta Krolikowska, Marcin Jakubczak
Summary: The study utilized experimental methods to investigate phase diagrams, granular physicochemical and thermal properties, as well as eutectic points of two binary mixtures. The research revealed that eutectic mixtures of stabilizers prevent decomposition reactions more effectively than individual compounds as stabilizers.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Materials Science, Paper & Wood
Yang Zhao, Bo Jin, Tian Zheng, Rufang Peng
Summary: This study synthesized novel arylmalonamide[70]fullerocyclopropanes and investigated their thermal stability and influence on the thermal decomposition of nitrocellulose. The results showed that these compounds can significantly improve the thermal stability of nitrocellulose, presenting promising potential for applications as stabilizers.
Article
Thermodynamics
Yang Zhao, Bo Jin, Tian Zheng, Rufang Peng
Summary: In this study, a series of aryl[70]fulleropyrrolidine were successfully synthesized and shown to have good thermal stability properties towards nitrocellulose. It was found that these compounds increased the critical explosion temperature, prolonged the discoloration time, and extended the safe storage life of nitrocellulose. Additionally, the feasibility of low-cost and large-scale preparation of these stabilizers using fullerene soot as a precursor was explored.
THERMOCHIMICA ACTA
(2022)
Article
Materials Science, Paper & Wood
Yang Zhao, Bo Jin, Tian Zheng, Rufang Peng
Summary: This study developed tea polyphenol as a natural macromolecule stabilizer to enhance the thermal stability of nitrocellulose. Tea polyphenol was confirmed to have good thermal stability and prolonged the safe storage life of nitrocellulose. It was also shown to inhibit the autocatalytic thermal decomposition of nitrocellulose.
Article
Thermodynamics
Abdelaziz Hamed, Mohamed Gobara, Mohamed Mokhtar, Sherif Elbasuney
Summary: This study reports on the facile development of thermite-based NC nanocomposite, where nanothermite particles offered an increase in NC decomposition enthalpy by 38.59%. The developed NC nanocomposite is considered bespoke material for first-fire ignition systems.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Paper & Wood
Shiying Li, Yu Li, Yajun Ding, Ye Yuan, Zhongliang Xiao
Summary: This paper successfully synthesized sodium carboxymethyl-nitrocellulose (CMNC) with thermal stability, flame suppression, and anti-migration properties by reacting nitrocellulose with denitration and etherification. The thermal stability of CMNC was found to be better than that of original nitrocellulose, and its thermal decomposition behaviors were similar to both nitrocellulose and carboxymethyl cellulose.
Article
Thermodynamics
Jordan Ehrhardt, Julien Glorian, Leo Courty, Barbara Baschung, Philippe Gillard
Summary: In this study, a detailed decomposition model of nitrocellulose (NC) was developed using open-source software. The model was optimized based on experimental data and was able to predict overpressures in RDX-NC propellants.
COMBUSTION AND FLAME
(2023)
Article
Materials Science, Paper & Wood
Yanguang Wu, Chaodong Li, Jia Gao, Lu Cai, Can Jiang, Hui Liu
Summary: In this study, GAP-HDI-NC graft polymer and its click reaction elastomer were successfully fabricated by azide-alkyne cycloaddition click reaction. The formulations were optimized to improve mechanical properties, thermal stability, and safety. The click reaction of azide group improved the thermal stability and safety performance, making it a potential solid propellant binder.
Article
Thermodynamics
Xiang Cao, Fengqiang Nan, Jianwei Zhang, Ling Chen, Heng Gao, Weidong He
Summary: Sulfuric acid treatment has an impact on the structure and stability of nitrocellulose, leading to denitrification and breakage of glucoside bonds at room temperature. It also causes the formation of micropores on the fiber surface, increasing the hygroscopicity of nitrocellulose.
THERMOCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Labeeb Ali, Mohamed Shafi Kuttiyathil, Mohammad Al-Harahsheh, Mohammednoor Altarawneh
Summary: The interaction between brominated flame retardants (BFRs) and transition metal oxides is widely used in the thermal recycling of bromine-contaminated plastics. This study investigated the thermal degradation behavior of hematite (Fe2O3): tribromophenol (TBP) mixtures during co-pyrolysis and co-combustion using a thermogravimetric analyzer (TGA). The obtained thermo-kinetic parameters provide insights into the reduction of activation energy by hematite and the mechanism of debromination of TBP. The results have direct applications in reactor modeling and heat transfer design for the recycling of electronic waste.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Nutrition & Dietetics
Shijie Shi, Enting Wang, Chengxuan Li, Mingli Cai, Bo Cheng, Cougui Cao, Yang Jiang
Summary: The taste quality of rice is influenced by rice types and the environment. Protein content can better reflect the taste quality change for rice and has a higher predictive ability in determining rice types with high and low taste values.
FRONTIERS IN NUTRITION
(2022)
Article
Chemistry, Multidisciplinary
Enrico Lepre, Sylvain Rat, Cristian Cavedon, Peter H. Seeberger, Bartholomaeus Pieber, Markus Antonietti, Nieves Lopez-Salas
Summary: The influence of structural modifications on the catalytic activity of carbon materials is investigated using carbonaceous materials with different pore networks and high nitrogen content. Results show that CO2 cycloaddition and Knoevenagel reaction are dependent on Lewis basic sites, while the absence of large conjugated carbon domains due to the introduction of nitrogen leads to poor redox activity. The material with the highest Lewis acid catalytic activity demonstrates the most effective small molecule activation and the highest concentration of electron-poor nitrogen species.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Sruthy Balakrishnan, Terry D. Humphries, Mark Paskevicius, Craig E. Buckley
Summary: Calcium hydride has shown potential as a hydrogen storage and thermochemical energy storage material, but its high operating temperature has limited its application and research on its hydrogen sorption thermodynamics. This study provides experimental data on the thermodynamic properties and activation energy of CaH2 in both solid and molten states, filling the gap in the thermodynamics of the Ca-H system for the first time in over 60 years.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Biochemistry & Molecular Biology
Qiong Wang, Xiao-Hong Wang, Qing Pan, Hai Chang, Hong-Jian Yu, Wei-Qiang Pang
Summary: The thermal behaviors of nano-scale composite energetic materials composed of ADN and NC were studied using various instruments. The results showed that the interaction mechanism between ADN and NC is crucial for the design and safety of these materials. The mixture of NC and ADN exhibited different thermal decomposition characteristics compared to NC or ADN alone. ADN initiated the interaction with NC, leading to the formation of oxidative gases. The thermal decomposition process of ADN dominated the initial stage of the mixture, followed by the oxidation of NC and the cation of ADN.
Article
Energy & Fuels
Tomasz Noszczyk, Arkadiusz Dyjakon, Jacek A. Koziel
Summary: The European Union's European Green Deal Program (EGDP) aims at a sustainable economy with climate neutrality by 2050. This study investigated the energy and kinetic parameters of walnut, hazelnut, peanut, and pistachio shells, finding that thermal treatment increased the heating value significantly. The activation energy of the nut shells varied with different heating rates, highlighting the importance of specific characterization for improved thermal process modeling.
Article
Thermodynamics
Katarzyna Ganczyk, Angelika Zygmunt, Tomasz Golofit
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2016)
Review
Environmental Sciences
Anna Kasztankiewicz, Katarzyna Ganczyk-Specjalska, Angelika Zygmunt, Katarzyna Cieslak, Bartosz Zakoscielny, Tomasz Golofit
JOURNAL OF ELEMENTOLOGY
(2018)
Review
Environmental Sciences
Angelika Zygmunt, Katarzyna Ganczyk, Anna Kasztankiewicz, Katarzyna Cieslak, Tomasz Golofit
JOURNAL OF ELEMENTOLOGY
(2017)
Article
Polymer Science
Tomasz Golofit, Katarzyna Ganczyk-Specjalska, Karolina Jamroga, Lukasz Kufel
Article
Polymer Science
Tomasz Golofit, Katarzyna Ganczyk-Specjalska, Karolina Jamroga, Lukasz Kufel
Article
Chemistry, Multidisciplinary
Tomasz Golofit, Katarzyna Ganczyk-Specjalska, Karolina Jamroga
PRZEMYSL CHEMICZNY
(2019)
Article
Biochemistry & Molecular Biology
Rafal Lewczuk, Maria Ksiazek, Katarzyna Ganczyk-Specjalska, Katarzyna Cieslak
Article
Thermodynamics
T. Golofit, K. Ganczyk-Specjalska, K. Posala
THERMOCHIMICA ACTA
(2020)
Article
Engineering, Chemical
Katarzyna Ganczyk-Specjalska, Paulina Paziewska, Rafal Bogusz, Rafal Lewczuk, Katarzyna Cieslak, Michal Uszynski
Summary: The study suggests that partially replacing ammonium perchlorate (AP) with phase stabilized ammonium nitrate (PSAN) containing inorganic potassium salts in solid heterogeneous rocket propellants (SHRP) can reduce hydrogen chloride (HCl) emissions and environmental issues during combustion, without significantly compromising the operational parameters or safety of the propellants.
Article
Chemistry, Applied
Katarzyna Ganczyk-Specjalska, Katarzyna Cieslak, Marcin Jakubczak, Katarzyna Drozdzewska-Szymanska, Waldemar Tomaszewski, Piotr Prasula
Summary: Nitrocellulose granules containing eco-friendly inert plasticizers, alternatives to phthalate derivatives, were successfully obtained. Single-base propellants were obtained using a safe granulation process, and diethylene glycol dinitrate (DEGDN) was used as an energetic modifier. The addition of citrate plasticizers reduced the heat of combustion and dynamic vivacity, while DEGDN increased the heat of combustion. The presence of DEGDN in the granules reduced the activation energy and increased the constant heat cumulative rate. The prepared propellants exhibited excellent thermal stability and can potentially be used in small-caliber ammunition.
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2023)
Article
Thermodynamics
Katarzyna Cieslak, Katarzyna Ganczyk-Specjalska, Katarzyna Drozdzewska-Szymanska, Marta Krolikowska, Marcin Jakubczak
Summary: The study utilized experimental methods to investigate phase diagrams, granular physicochemical and thermal properties, as well as eutectic points of two binary mixtures. The research revealed that eutectic mixtures of stabilizers prevent decomposition reactions more effectively than individual compounds as stabilizers.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)