Piotr Prasuła

Military Institute of Armament Technology

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Magdalena Czerwińska

Military Institute of Armament Technology

Anna Dettlaff

Gdańsk University of Technology

Piotr Kasprzak

Military Institute of Armament Technology

Agata Kamieńska-Duda

Military Institute of Armament Technology

Piotr Cieślak

Military Institute of Armament Technology

Małgorzata Szopińska

Gdańsk University of Technology

Sylwia Fudala‐Książek

Gdańsk University of Technology

Mateusz Szala

Military University of Technology in Warsaw

Michał Sobaszek

Rzeszów University

Iwona Kaczmarzyk

Gdańsk University of Technology

Cooperative Institutions

Military Institute of Armament Technology

Warsaw University of Technology

Military University of Technology in Warsaw

Gdańsk University of Technology

AGH University of Krakow

Instytut Chemii i Techniki Jądrowej

University of Gdańsk

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University of Warwick

Łukasiewicz Research Network

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Nowoczesne małowrażliwe materiały wybuchowe do celów wojskowych

PRZEMYSŁ CHEMICZNY (2023)

Piotr Prasuła

10.15199/62.2023.11.4

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Thermo-oxidative aging of the polyoxymethylene (POM), acrylonitrile–butadiene–styrene (ABS) and polycarbonate (PC) polymers – a comparative study

Journal of Polymer Research (2022)

Marcin Konarzewski T. Durejko Magdalena Łazińska Magdalena Czerwińska Piotr Prasuła

Polyoxymethylene

Polycarbonate

Acrylonitrile butadiene styrene

Tensile testing

10.1007/s10965-022-03065-8

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Properties of Polyethylene Terephthalate (PET) after Thermo-Oxidative Aging

Materials (2021)

R. Panowicz Marcin Konarzewski T. Durejko Mateusz Szala Magdalena Łazińska

The influence of the thermo-oxidative aging semi-crystalline polyethylene terephthalate process on the thermal and mechanical properties was analysed in the article. For this purpose, PET was aged at 140 °C for 21, 35 and 56 days. The research showed that as a result of aging, the amount of the crystalline phase increases by about 8%, which translates into the properties of the aged material. The glass transition and melt temperature of lamellar crystals formed during first and second crystallisation increase with aging. The mechanical properties of the material were analysed in the temperature range of 25 to 75 °C. The tests were showing an increase in Young’s modulus and a decrease in elongation at the break as a result of aging. This phenomenon was particularly visible during tests at 75 °C and during the morphological observation of the fracture surface, where the fracture character of the material changes from ductile to brittle. In the case of the material aged for the longest time, the temperature has a negligible influence on the elongation at break.

Elongation

Brittleness

10.3390/ma14143833

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Citations (61)

Materiały Wysokoenergetyczne / High Energy Materials (2020)

Michał Kaczorowski Piotr Prasuła Piotr Kasprzak

Changes in ownership, changes in technology, unprofitable production and other causes, force manufacturers to cease production of explosives in chemical plants. This process is well-controlled in some plants, and abrupt in others, without proper control or the required safety measures. Frequently, plants used previously for the production of explosives and explosive compositions change production or are retrofitted without prior cleaning or, after ceasing production, are left without appropriate supervision which may lead to serious or even fatal accidents. The issues of cessation of special production are discussed using examples.

10.22211/matwys/0142e

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Author Correction: Efficient removal of 2,4,6-trinitrotoluene (TNT) from industrial/military wastewater using anodic oxidation on boron-doped diamond electrodes

Scientific Reports (2024)

Małgorzata Szopińska Piotr Prasuła Piotr Baran Iwona Kaczmarzyk Mattia Pierpaoli

Trinitrotoluene

Anodic oxidation

10.1038/s41598-024-67935-5

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Otrzymywanie i badania kompozycji wybuchowych zawierających żywicę poliestrową

Problemy Techniki Uzbrojenia (2014)

M. Nita R. Warchoł Piotr Prasuła

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SAFETY RISKS POSED BY PYROTECHNIC MATERIALS

PROBLEMY TECHNIKI UZBROJENIA (2023)

Piotr Prasuła Izabela Mazur Magdalena Czerwińska Piotr Cieślak

Abstract: Pyrotechnic materials are one of the types of explosives which are used to manufacture products for military and civil purposes. These materials, in the event of improper storage or use contrary to their intended purpose, may work in an uncontrolled manner. In extreme cases, the phenomenon of a mass explosion involving the entire load, warehouse or transport vehicle may occur, which in turn may lead to significant losses in people or property. History cites many cases in which the explosion of spectacular pyrotechnic products, generally considered harmless, had catastrophic consequences for the life and health of many people. The risks associated with the use of pyrotechnic materials may result, among others, from: negligence on the part of producers, or organizational local authorities, lack or failure to maintain an appropriate level of security by sellers, organizers of mass events and users themselves. Due to the amount of storage in one place, pyrotechnic materials pose a particularly high risk in the places of production and storage. Over the years, there have been many disasters related to the accidental initiation of energetic semi-finished or finished products. This article describes accidents related to the activation of pyrotechnic materials in Poland and abroad. Methods for determining the degree of hazard posed by dangerous goods and examples of the Test Series 6 carried out for pyrotechnic articles are also presented.

Dangerous goods

CITES

10.5604/01.3001.0053.9218

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sp-rich dendrite-like carbon nanowalls as effective electrode for environmental monitoring of explosive nitroaromatic

Chemical Engineering Journal (2024)

Anna Dettlaff Małgorzata Szopińska Daniel Houghton Piotr Prasuła Yisong Han

Nitroaromatic compounds are commonly used explosive materials that pose a risk to human health and ecosystems due to their acute toxicity and carcinogenicity. Nitroaromatics have numerous pathways into the environment via discarded munitions (e.g. into the Baltic Sea after World War II), after use in mining operations, and in industrial run-off from factories producing these compounds (which are produced across the world to date). The current detection method relies on chromatography and mass spectrometry methods, which are time-consuming, expensive, and require specialist equipment and training. Carbon-based electrochemical sensors offer a low-cost, fast, and easy on-site method for the detection of a variety of compounds. This study demonstrates an efficient approach for rapid electrochemical sensing of Tetryl (N-methyl-N-2,4,6-tetranitroaniline) through the use of boron-doped sp2-rich carbon structures. These structures, known as dendrite-like carbon nanowalls (D:CNW), were fabricated in one-step deposition and extensively characterized to understand the structure and surface chemistry. Electrodes were used to detect a range of nitroaromatic compounds, most notably tetryl in both laboratory and real environmental samples, with an excellent sensitivity of 153.0 µA cm−2 ppm−1 and a detection limit of 17 ppb. The analytical and electrochemical capabilities of D:CNW electrodes indicate their suitability for extensive environmental monitoring.

Carbon fibers

Dendrite (mathematics)

10.1016/j.cej.2024.152620

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INNOVATIVE ASPECTS OF DOG TRAINING IN HIGH EXPLOSIVES DETECTION

PROBLEMY TECHNIKI UZBROJENIA (2019)

Agnieszka Żmuda-Gołębiewska Radosław Szmigielski Magdalena Czerwińska Piotr Prasuła Wawrzyniec Pniewski

A nose of a dog is an invaluable help to humanity thanks to its excellent sensitivity and ability to recognize and distinguish odours, i.e. volatile substances emitted by a given material. In comparison with the increasingly advanced technology of electronic detection devices, it still ranks first on the “podium”. Due to its special abilities the dog is a great support in the fight against terrorism, where the early detection of explosives plays a key role in security. In the training process of a dog for the detection of explosives in Polish uniformed services genuine explosives samples are used. However, international studies have shown that this approach does not give 100% guarantee of HE detection by a dog. In addition, the use of classic HE samples in training involves a risk associated to the safety of both the operator and the dog and is burdened by law enforcement restrictions related to storage, use and transportation. An innovative solution developed during the implementation of the subject “Reference set of explosives samples for training and validation of service dogs” allows for more flexibility while handling the sample, increases the safety of use and provides a better detection of the explosive by the dog.

Explosive detection

Sample (material)

10.5604/01.3001.0013.3770

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STUDY OF THERMO-MECHANICAL PROPERTIES OF AGED HOMOGENEOUS SOLID ROCKET PROPELLANT ACCORDING TO STANAG REQUIREMENTS

PROBLEMY TECHNIKI UZBROJENIA (2018)

Magdalena Czerwińska Piotr Prasuła

Proper operation of rocket motor depends significantly on thermo-mechanical properties of propellant used. For this reason it is important that characteristics of a particular propellant versus the time and temperature pass a thorough investigation to assess its operation at different conditions. The paper illustrates investigations of ageing process influencing thermo-mechanical properties of homogeneous rocket propellant. A selected type of rocket propellant was subjected to accelerated ageing in conditions specified in AOP-48 document to establish in the next step its thermal and mechanical characteristics (between all the temperature of glass transition and decomposition). The ageing of propelling explosives causes the reduction of stabiliser content deciding about thermo-mechanical properties of propellant and for that the percentage of effective stabiliser and its loss were identified by liquid chromatography HPLC. Thermal properties were investigated by differential scanning calorimetry. Thermal analyses were carried out according to STANAG 4515. Mechanical characteristics were tested by dynamic mechanical analysis (DMA) in line with STANAG 4540.

Stabiliser

Rocket propellant

Solid-fuel rocket

Rocket (weapon)

10.5604/01.3001.0012.1325

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