Products of entertainment pyrotechnics as specific market products
Category Archives: Year 2012 Issue 1
Methods for obtaining octogen (hmx)
Methods for obtaining octogen (hmx).
MATYS Z., POWAŁA D., ORZECHOWSKI A., MARANDA A. Please cite as: CHEMIK 2012, 66, 1, 58-63 The paper describes the methods for manufacturing octogen, a modern, thermally stable, brisant explosive. Two production technologies for obtaining the compound developed at the Institute of Industrial Organic Chemistry have been presented. The first method uses the nitration of urea with a nitrating mixture (nitric acid and oleum), and the cyclisation of dinitrourea (DNU) with hexamethylenetetramine (HMTA) and ammonia to form a semiproduct ?...Study of the detonation parameters the mixtures of nitroguanidine with flaked aluminium
Study of the detonation parameters the mixtures of nitroguanidine with flaked aluminium.
MARANDA A., SZAŁKOWSKI K., PASZULA J., ORZECHOWSKI A., POWAŁA D., Please cite as: CHEMIK 2012, 66, 1, 50-57 At this point in time nitroguanidine is used as component of explosive mixtures described with high detonation parameters and low sensibility to mechanical stimuli. It is also used in some kinds of rocket propellant. The results of attempts to achieve nitroguanidine with isometric grains are shown in this paper. Then it was used for...How to prepare an explosion protection document
How to prepare an explosion protection document.
Piotrowski T., Domański W. Please cite as: CHEMIK 2012, 66, 1, 31-40 This paper presents a method of preparing an explosion protection document (EPD). This document is required by directive ATEX 137 and the decree of the Minister of Economy implementing this directive into Polish law. A three-part structure of the EPD is proposed: part 1 ?General information?, which includes statements and deadlines relating to the EPD; part 2 ?Detailed information?, which includes an assessment of the...Morphology and Thermal Properties of Expanded Graphite (EG)/Poly(ethylene terephthalate) (PET) Nanocomposites
Morphology and Thermal Properties of Expanded Graphite (EG)/Poly(ethylene terephthalate) (PET) Nanocomposites.
PASZKIEWICZ S., ROSŁANIEC Z., SZYMCZYK A., SPITALSKY Z., MOSNACEK J. Please cite as: CHEMIK 2012, 66, 1, 21-30 Nanocomposites based on poly(ethylene terephtalate) and expanded graphite (PET/EG) with 0.025-0.4wt.% nanofiller content were prepared by in situ condensation polymerization (polycondensation). Their morphology was determined (TEM, SEM), thermal stability by TGA (temperatures corresponding to: 2% (T-2%),10% (T-10%) and 50% (T-50%) weight loss, activation energy by Freeman-Carroll method (Ea), temperature of maximum mass loss rate of nanocomposites in...A new tool for synthesis of organic optoelectronic materials
A new tool for synthesis of organic optoelectronic materials.
Piotr BAŁCZEWSKI - Department of Heteroorganic Chemistry - Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Łódź; Institute of Chemistry, Environmental Protection and Biotechnology, Jan Dlugosz University, Czestochowa; Agnieszka BODZIOCH, Joanna SKALIK - Department of Heteroorganic Chemistry - Centre of Molecular and Macromolecular Studies,Polish Academy of Sciences, Łódź Please cite as: CHEMIK 2012, 66, 1, 11-20 Abstract: Organic materials, featuring spatially developed systems of ?-conjugated bonds, are currently intensively investigated as materials for...One more function for microbial fuel cells in treating wastewater: producing high-quality water